initial commit

engine/CMake/FindFreeType2.cmake

@@ -0,0 +1,28 @@
+# Tries to find FREETYPE2 (http://freetype2.bespin.org) a simple and fast 
+# network library by Lee Salzman
+#
+
+SET (FREETYPE2_FOUND FALSE)
+
+FIND_PATH (FREETYPE2_INCLUDE_DIR freetype/freetype.h /usr/include/ /usr/local/include/ /usr/include/freetype2 /usr/local/include/freetype2 $ENV{FREETYPE2_PATH}/include $ENV{FREETYPE2_INCLUDE_PATH})
+
+FIND_LIBRARY (FREETYPE2_LIBRARIES NAMES freetype PATHS /usr/lib /usr/local/lib $ENV{FREETYPE2_PATH} $ENV{FREETYPE2_PATH}/lib ENV{FREETYPE2_LIBRARY_PATH})
+
+IF (FREETYPE2_INCLUDE_DIR AND FREETYPE2_LIBRARIES)
+	SET (FREETYPE2_FOUND TRUE)
+ENDIF (FREETYPE2_INCLUDE_DIR AND FREETYPE2_LIBRARIES)
+
+IF (FREETYPE2_FOUND)
+   IF (NOT FREETYPE2_FIND_QUIETLY)
+      MESSAGE(STATUS "Found FREETYPE2: ${FREETYPE2_LIBRARIES}")
+   ENDIF (NOT FREETYPE2_FIND_QUIETLY)
+ELSE (FREETYPE2_FOUND)
+   IF (FREETYPE2_FIND_REQUIRED)
+      MESSAGE(FATAL_ERROR "Could not find FREETYPE2")
+   ENDIF (FREETYPE2_FIND_REQUIRED)
+ENDIF (FREETYPE2_FOUND)
+
+MARK_AS_ADVANCED (
+	FREETYPE2_INCLUDE_DIR
+	FREETYPE2_LIBRARIES
+	)

engine/CMakeLists.txt

@@ -0,0 +1,60 @@
+CMAKE_MINIMUM_REQUIRED (VERSION 2.6)
+
+LIST( APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMake )
+
+FIND_PACKAGE (SDL REQUIRED)
+FIND_PACKAGE (OpenGL REQUIRED)
+FIND_PACKAGE (PNG REQUIRED)
+FIND_PACKAGE (FreeType2 REQUIRED)
+
+ADD_SUBDIRECTORY ( libraries )
+
+SET ( ENGINE_SRCS
+	CameraBase.cc
+	ControllerBase.cc
+	EntityBase.cc
+	EntityFactoryBase.cc
+	GameEntityBase.cc
+	ModelBase.cc
+	PhysicsBase.cc
+	PhysicsEntityBase.cc
+	ViewBase.cc
+	EventsBase.cc
+
+	Commands.cc
+	DrawingsGL.cc
+	EngineCommands.cc
+	Variables.cc
+	VariablesCommands.cc
+	SimpleConsoleOverlay.cc
+	Sprite.cc
+
+	Engine.cc
+	Logging.cc
+	)
+
+INCLUDE_DIRECTORIES (
+	${PROJECT_SOURCE_DIR}
+	libraries/mathlib/
+	libraries/coll2d/include
+	libraries/oglft/
+	${FREETYPE2_INCLUDE_DIR}
+	)
+
+IF ( WIN32 )
+	ADD_LIBRARY ( Engine STATIC ${ENGINE_SRCS} )
+ELSE ( WIN32 )
+	ADD_LIBRARY ( Engine SHARED ${ENGINE_SRCS} )
+ENDIF ( WIN32 )
+
+TARGET_LINK_LIBRARIES ( Engine
+	${SDL_LIBRARY}
+	${OPENGL_LIBRARIES}
+	${PNG_LIBRARIES}
+	mathlib
+	oglft
+	coll2d
+	)
+
+ADD_SUBDIRECTORY ( tests )
+

engine/CameraBase.cc

@@ -0,0 +1,49 @@
+#include "CameraBase.h"
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+namespace Engine {
+
+/*
+ * Inherited Module functions
+ */
+int CameraBase::OnInit (int argc, char* argv[]) {
+	LogDebug ("Camera Init");
+
+	mEye[0] = 0.;
+	mEye[1] = 1.;
+	mEye[2] = 1.;
+
+	mPointOfIntrest[0] = 0.;
+	mPointOfIntrest[1] = 0.;
+	mPointOfIntrest[2] = 0.;
+
+	mUp[0] = 0.;
+	mUp[1] = 1.;
+	mUp[2] = 0.;
+
+	mFOVY = 90.;
+
+	return 0;
+}
+
+void CameraBase::OnDestroy () {
+	LogDebug ("Camera Destroy");
+}
+
+/*
+ * Module specific functions
+ */
+void CameraBase::Update () {
+	glMatrixMode (GL_MODELVIEW);
+
+	glLoadIdentity ();
+	gluLookAt(mEye[0], mEye[1], mEye[2],
+			mPointOfIntrest[0], mPointOfIntrest[1], mPointOfIntrest[2],
+			mUp[0], mUp[1], mUp[2]);
+
+}
+
+}
+

engine/CameraBase.h

@@ -0,0 +1,61 @@
+#ifndef _CAMERABASE_H
+#define _CAMERABASE_H
+
+#include "Engine.h"
+
+namespace Engine {
+
+class Module;
+
+/** \brief Controls from where the View is looking to
+ */
+class CameraBase : public Module { 
+	public:
+		/** updates the projection and modelview matrices for the camera */
+		void Update ();
+		float GetFOVY () {
+			return mFOVY;
+		}
+
+		/** sets the point where the camera is looking to */
+		void SetPointOfIntrest (float poi_x, float poi_y, float poi_z) {
+			mPointOfIntrest[0] = poi_x;
+			mPointOfIntrest[1] = poi_y;
+			mPointOfIntrest[2] = poi_z;
+		}
+		/** sets the position where the camera is located */
+		void SetEye (float eye_x, float eye_y, float eye_z) {
+			mEye[0] = eye_x;
+			mEye[1] = eye_y;
+			mEye[2] = eye_z;
+		}
+		/** returns the position of the eye */
+		void GetEye (float *eye_out) {
+			eye_out[0] = mEye[0];
+			eye_out[1] = mEye[1];
+			eye_out[2] = mEye[2];
+		}
+
+		/** sets the up direction of the camera */
+		void SetUp (float up_x, float up_y, float up_z) {
+			mUp[0] = up_x;
+			mUp[1] = up_y;
+			mUp[2] = up_z;
+		}
+
+	protected:
+		/** \brief Initializes the system */
+		int OnInit (int argc, char* argv[]);
+		/** \brief Destroys the system (must be called!) */
+		void OnDestroy (); 
+
+		float mPointOfIntrest[3];
+		float mEye[3];
+		float mUp[3];
+
+		float mFOVY;
+};
+
+}
+
+#endif // _CAMERABASE_H

engine/Commands.cc

@@ -0,0 +1,245 @@
+#include "Commands.h" 
+
+namespace Engine {
+
+static Commands *CommandsInstance = NULL;
+
+void trim_command_str (std::string &command_str) {
+	std::string::size_type start = command_str.find_first_not_of (" \t");
+	if (start != std::string::npos)
+		command_str = command_str.substr (start);
+
+	std::string::size_type end = command_str.find_first_of ("#;\n\r\0");
+
+	if (end != std::string::npos)
+		command_str = command_str.substr (0, end);
+}
+
+/*
+ * Inherited Module functions
+ */
+int Commands::OnInit (int argc, char* argv[]) {
+	LogDebug ("Commands Init");
+	mErrorString = "";
+	if (CommandsInstance) {
+		LogError ("Commands module already initialized!");
+		return -1;
+	}
+
+	CommandsInstance = this;
+
+	return 0;
+}
+void Commands::OnDestroy () {
+	LogDebug ("Commands Destroy");
+
+	if (CommandsInstance)
+		CommandsInstance = NULL;
+}
+
+/*
+ * Module specific functions
+ */
+std::string Commands::GetCommandName (const std::string &command) {
+	return command.substr (0, command.find_first_of (" ;\n\0"));
+}
+
+std::vector<std::string> Commands::ParseArgs (std::string &argument_str) {
+	std::vector<std::string> args;
+	std::string::size_type pos = argument_str.find_first_not_of (" ");
+	std::string::size_type next_token = 0;
+
+	while ( argument_str.length ()> pos && argument_str.find_first_of (" \"", pos) != std::string::npos) {
+		next_token = argument_str.find_first_of (" \"", pos);
+
+		if (next_token != std::string::npos && argument_str[next_token] =='"') {
+			pos = next_token;
+			next_token = argument_str.find_first_of ('"', pos + 1);
+			if (next_token != std::string::npos) {
+				args.push_back (argument_str.substr (pos + 1, next_token - pos - 1));
+			}
+			pos = argument_str.find_first_not_of (" ", next_token + 1);
+			
+		} else {
+			args.push_back (argument_str.substr (pos, next_token - pos));
+			pos = argument_str.find_first_not_of (" ", next_token + 1);
+		}
+	}
+
+	if (pos != std::string::npos)
+		args.push_back (argument_str.substr (pos, argument_str.length ()));
+
+	return args;
+}
+
+void Commands::AddCommand (const std::string &name, command_cb callback){
+	LogDebug ("Adding Command '%s' at %x", name.c_str(), (void *) callback);
+
+	mCommandsCallbacks[name] = callback;
+
+	return;
+}
+
+bool Commands::RunCommand (const std::string &command){
+	LogDebug ("Running Command: %s", command.c_str());
+
+	std::string cmd_name = GetCommandName (command);
+	std::string args;
+
+	if (command.length () > cmd_name.length () + 1)
+		args = command.substr (cmd_name.length () + 1, command.length ());
+
+	if (mCommandsCallbacks.find (cmd_name) != mCommandsCallbacks.end()) {
+		std::vector<std::string> argv = ParseArgs (args);
+		if (mCommandsCallbacks[cmd_name] (argv)) {
+			mErrorString = "";
+			return true;
+		} else {
+				return false;
+		}
+	} else {
+		LogWarning ("Command '%s' not registered!", cmd_name.c_str ());
+	}
+
+	SetErrorString ("Command '" + cmd_name + "' does not exist!");
+	return false;
+}
+
+void Commands::QueueCommand (const std::string &command){
+	mCommandQueue.push (command);
+}
+
+bool Commands::QueueExecute (){
+	bool result = true;
+
+	while (mCommandQueue.size() > 0) {
+		result = RunCommand (mCommandQueue.front());
+		if (!result) {
+			while (!mCommandQueue.empty())
+				mCommandQueue.pop();
+			
+			return false;
+		}
+		mCommandQueue.pop();
+	}
+
+	return true;
+}
+
+void Commands::SetErrorString (const std::string &error_str){
+	mErrorString = error_str;
+	LogWarning ("Command Error: %s", error_str.c_str ());
+}
+
+std::string Commands::GetErrorString (){
+	return mErrorString;
+}
+
+
+/*
+ * Global functions
+ */
+bool CommandsInitialized () {
+	if (!CommandsInstance) {
+		LogError ("Commands System not yet initialized!");
+		return false;
+	}
+
+	return true;
+}
+
+void AddCommand (const std::string &name, command_cb callback){
+	if (!CommandsInitialized ())
+		return;
+
+	CommandsInstance->AddCommand (name, callback);
+}
+
+bool RunCommand (const std::string &command){
+	if (!CommandsInitialized ())
+		return false;
+
+	return CommandsInstance->RunCommand (command);
+}
+
+void QueueCommand (const std::string &command){
+	if (!CommandsInitialized ())
+		return;
+
+	CommandsInstance->QueueCommand (command);
+}
+
+bool CommandQueueExecute (){
+	if (!CommandsInitialized ())
+		return false;
+
+	return CommandsInstance->QueueExecute ();
+}
+
+void CommandSetErrorString (const std::string &error_str){
+	if (!CommandsInitialized ())
+		return;
+
+	CommandsInstance->SetErrorString (error_str);
+}
+
+std::string CommandGetErrorString (){
+	if (!CommandsInitialized ())
+		return false;
+
+	return CommandsInstance->GetErrorString();
+}
+
+/*
+ * Commands of the Command system
+ */
+bool Cmd_Exec (const std::vector<std::string> args) {
+	if (!CommandsInitialized())
+		return false;
+
+	if (args.size() != 1) {
+		CommandsInstance->SetErrorString("usage: exec <path_to_file>");
+		return false;
+	}
+
+	std::ifstream exec_file;
+	exec_file.open(args[0].c_str(), std::ios_base::in);
+
+	if (!exec_file) {
+		std::ostringstream error_msg;
+		error_msg << "exec failed: could not open file '"
+			<< args[0] << "'";
+		CommandsInstance->SetErrorString(error_msg.str());
+		return false;
+	}
+
+	int linecounter = 0;
+	while (!exec_file.eof()) {
+		std::string line;
+		getline (exec_file, line);
+		linecounter++;
+
+		trim_command_str (line);
+
+		if (line.size() == 0)
+			continue;
+
+		if (!CommandsInstance->RunCommand (line)) {
+			std::ostringstream error_msg;
+			error_msg << "exec failed running command '" << line
+				<< "' in file " << args[0] << ":" << linecounter << ".";
+			CommandsInstance->SetErrorString (error_msg.str());
+			return false;
+		}
+	}
+
+	exec_file.close();
+	return true;
+}
+
+void Commands::OnRegisterCommands () {
+	AddCommand ("exec", Cmd_Exec);
+}
+
+}
+

engine/Commands.h

@@ -0,0 +1,70 @@
+#ifndef _COMMANDS_H
+#define _COMMANDS_H
+
+#include "Engine.h"
+
+namespace Engine {
+
+class Module;
+
+/** \brief The callback signature for commands */
+typedef bool (*command_cb) (std::vector<std::string>);
+
+/** \brief Contains all the facilities to parse/add/execute/... commands
+ *
+ *	\todo make the command system case insensitive
+ *
+ *	This system is mainly used for passing instructions to the Model and
+ *	modifying it in this way. Commands can be added with a name (string) and a
+ *	function (callback). It also contains a CommandQueue to faciliate delayed
+ *	execution of commands and also does the parsing of functions passed to it.
+ *
+ *  Functions that should be callable by the Commands module must have the
+ *  following signature:
+ *  \code
+ *  bool MyFunc_cmd (std::vector<std::string> args);
+ *  \endcode
+ *	To keep things readable one is advised to add \c _cmd at the end of the
+ *	function so that it is clear that this function is meant to be called by
+ *	the Commands module.
+ *
+ *	Scope: Globally visible (since commands must be added)
+ *
+  */
+class Commands : public Module { 
+	public:
+		/** \brief Adds the function callback as command for the given name*/
+		void AddCommand (const std::string &name, command_cb callback);
+		/** \brief Executes the given command immediately */
+		bool RunCommand (const std::string &command);
+		/** \brief Adds the given command to the command queue */
+		void QueueCommand (const std::string &command);
+		/** \brief Executes the command queue */
+		bool QueueExecute ();
+		/** \brief When a command fails it sets the error with this function */
+		void SetErrorString (const std::string &error_str);
+		/** \brief Returns the error string */
+		std::string GetErrorString ();
+
+	protected:
+		/** \brief Initializes the system */
+		virtual int OnInit (int argc, char* argv[]);
+		/** \brief Destroys the system (must be called!) */
+		virtual void OnDestroy ();
+		/** \brief Registers commands relevant to the Command system */
+		virtual void OnRegisterCommands ();	
+
+		/** \brief All registered commands are in this map */
+		std::map<std::string, command_cb> mCommandsCallbacks;
+		/** \brief Queue for the commands */
+		std::queue<std::string> mCommandQueue;
+		/** \brief Holds the error message of a failed command */
+		std::string mErrorString;
+
+	private:
+		std::string GetCommandName (const std::string &command);
+		std::vector<std::string> ParseArgs (std::string &argument_str);
+};
+
+}
+#endif // _COMMANDS_H

engine/CommandsGlobal.h

@@ -0,0 +1,24 @@
+#ifndef _COMMANDSGLOBAL_H
+#define _COMMANDSGLOBAL_H
+
+namespace Engine {
+
+typedef bool (*command_cb) (std::vector<std::string>);
+
+/** \brief Adds the function callback as command for the given name*/
+void AddCommand (const std::string &name, command_cb callback);
+/** \brief Executes the given command immediately */
+bool RunCommand (const std::string &command);
+/** \brief Adds the given command to the command queue */
+void QueueCommand (const std::string &command);
+/** \brief Executes the command queue */
+bool CommandQueueExecute ();
+/** \brief When a command fails it sets the error with this function */
+void CommandSetErrorString (const std::string &error_str);
+/** \brief Returns the error string */
+std::string CommandGetErrorString ();
+
+}
+
+#endif /* _COMMANDSGLOBAL_H */
+

engine/ControllerBase.cc

@@ -0,0 +1,264 @@
+#include "ControllerBase.h"
+
+#include "ModelBase.h"
+#include "ViewBase.h"
+#include "CommandsGlobal.h"
+
+#include "keytable.h"
+
+namespace Engine {
+
+static ControllerBase *ControllerInstance = NULL;
+
+/*
+ * Helper functions
+ */
+
+/** \brief Converts the SDL_BUTTON_* to a value we know */
+MouseButton convert_sdl_button (Uint8 button) {
+	MouseButton mouse_button;
+	switch (button) {
+		case SDL_BUTTON_LEFT:
+			mouse_button = MouseButtonLeft;
+			break;
+		case SDL_BUTTON_MIDDLE:
+			mouse_button = MouseButtonMiddle;
+			break;
+		case SDL_BUTTON_RIGHT:
+			mouse_button = MouseButtonRight;
+			break;
+		case SDL_BUTTON_WHEELUP:
+			mouse_button = MouseButtonWheelUp;
+			break;
+		case SDL_BUTTON_WHEELDOWN:
+			mouse_button = MouseButtonWheelDown;
+			break;
+		default:
+			mouse_button = MouseButtonUnknown;
+			break;
+	}
+
+	return mouse_button;
+}
+
+/*
+ * Inherited Module functions
+ */
+int ControllerBase::OnInit (int argc, char* argv[]) {
+	LogDebug ("Controller Init");
+
+	// clear all bindings
+	int i;
+	for (i = 0; i < BINDING_KEYS_LAST; i++)
+		mBindings[i] = "";
+
+	ControllerInstance = this;
+
+	return 0;
+}
+
+void ControllerBase::OnDestroy () {
+	ControllerInstance = NULL;
+
+	LogDebug ("Controller Destroy");
+}
+
+/*
+ * Module specific functions 
+ */
+bool ControllerBase::BindKey (int key, const char *command) {
+	if (key <= 0 || key >= BINDING_KEYS_LAST) {
+		LogError ("Could not bind to key with index '%d': invalid index!", key);
+		return false;
+	}
+
+	mBindings[key] = command;
+
+	return true;
+}
+
+void ControllerBase::Process () {
+	ProcessEvents ();
+
+	mView->CalcWorldCoordinates (mMouseScreenPosition[0], mMouseScreenPosition[1],
+			0., mMouseWorldPosition);
+
+	/*
+	LogMessage ("Screenpos = %2d,%2d Worldpos = %f,%f,%f",
+			mMouseScreenPosition[0], mMouseScreenPosition[1],
+			mMouseWorldPosition[0], mMouseWorldPosition[1], mMouseWorldPosition[2]);
+	*/
+}
+
+void ControllerBase::ProcessEvents () {
+	SDL_Event event;
+
+	while (SDL_PollEvent(&event)) {
+		/* We are only worried about SDL_KEYDOWN and SDL_KEYUP events */
+		switch (event.type) {
+		case SDL_KEYDOWN:
+			OnKeyDown (event.key.keysym);
+			break;
+
+		case SDL_KEYUP:
+			OnKeyUp (event.key.keysym);
+			break;
+
+		case SDL_MOUSEMOTION:
+			OnMouseMotion(event.motion.x, event.motion.y);
+			break;
+
+		case SDL_MOUSEBUTTONDOWN:
+			OnMouseButtonDown (event.button.button, event.button.x, event.button.y);
+			break;
+
+		case SDL_MOUSEBUTTONUP:
+			OnMouseButtonUp (event.button.button, event.button.x, event.button.y);
+			break;
+
+		case SDL_VIDEORESIZE:
+			OnVideoResize (event.resize.w, event.resize.h);
+			break;
+		
+		case SDL_QUIT:
+			EngineSetStatus (EngineStatusStopping);
+			break;
+
+		default:
+			break;
+		}
+	}
+}
+
+/** \brief Keyboard processing */
+bool ControllerBase::OnKeyDown (const SDL_keysym &keysym) {
+	if (mView->SendKeyDown (keysym))
+		return true;
+
+	if (mBindings[keysym.sym].size () != 0) {
+		QueueCommand (mBindings[keysym.sym]);
+		return true;
+	}
+
+	return false;
+}
+
+/** \brief Keyboard processing */
+bool ControllerBase::OnKeyUp (const SDL_keysym &keysym) {
+	if (mView->SendKeyUp (keysym))
+		return true;
+
+	if (mBindings[keysym.sym].size () != 0) {
+		if (mBindings[keysym.sym][0] == '+') {
+			std::string upcommand = mBindings[keysym.sym];
+			upcommand[0] = '-';
+			QueueCommand (upcommand);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/** \brief Mouse processing */
+bool ControllerBase::OnMouseButtonDown (Uint8 button, Uint16 xpos, Uint16 ypos) {
+	MouseButton mouse_button = convert_sdl_button (button);
+
+	if (mView->SendMouseButtonDown (button, xpos, ypos))
+		return true;
+
+	if (mBindings[mouse_button].size () != 0) {
+		QueueCommand (mBindings[mouse_button]);
+		return true;
+	}
+	
+	return false;
+}
+
+/** \brief Mouse processing */
+bool ControllerBase::OnMouseButtonUp (Uint8 button, Uint16 xpos, Uint16 ypos) {
+	MouseButton mouse_button = convert_sdl_button (button);
+
+	if (mView->SendMouseButtonUp (button, xpos, ypos))
+		return true;
+
+	if (mBindings[mouse_button].size () != 0) {
+		if (mBindings[mouse_button][0] == '+') {
+			std::string upcommand = mBindings[mouse_button];
+			upcommand[0] = '-';
+			QueueCommand (upcommand);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/** \brief Mouse processing */
+bool ControllerBase::OnMouseMotion (const int xnew, const int ynew) {
+	mMouseScreenPosition[0] = xnew;
+	mMouseScreenPosition[1] = ynew;
+	return false;
+}
+
+/** \brief Video */
+bool ControllerBase::OnVideoResize (int width, int height) {
+	mView->Resize (width, height);
+
+	return true;
+}
+
+int convert_keystring (const char *key_val) {
+	std::string keystr (key_val);
+	
+	// convert the keystr to lowercase
+	for (std::string::iterator iter = keystr.begin(); iter != keystr.end(); iter++)
+		(*iter) = tolower(*iter);
+
+	// now we search through the table for he value we were given
+	int i = 0;
+	while (key_table[i].keynum != keytable_last) {
+		if (keystr.compare(key_table[i].keystr) == 0)
+			return key_table[i].keynum;
+
+		i++;
+	}
+
+	return 0;
+}
+
+/*
+ * Commands for the ControllerBase
+ */
+bool Cmd_Bind (const std::vector<std::string> args) {
+	if (ControllerInstance == NULL) {
+		CommandSetErrorString("Could not bind key: Controller not yet initialized!");
+		return false;
+	}
+
+	if (args.size() != 2) {
+		CommandSetErrorString("usage: bind <key> <command>");
+		return false;
+	}
+
+	int key = convert_keystring (args[0].c_str());
+
+	if (key == 0) {
+		std::ostringstream error_msg;
+		error_msg << "bind failed: invalid key '" << args[0] << '"';
+		CommandSetErrorString(error_msg.str());
+		return false;
+	}
+
+	if (!ControllerInstance->BindKey (key, args[1].c_str()))
+		return false;
+
+	return true;
+}
+
+void ControllerBase::OnRegisterCommands () {
+	AddCommand ("bind", Cmd_Bind);
+}
+
+}
+

engine/ControllerBase.h

@@ -0,0 +1,92 @@
+#ifndef _CONTROLLERBASE_H
+#define _CONTROLLERBASE_H
+
+#include "Engine.h"
+
+namespace Engine {
+
+class ModelBase;
+class Console;
+class Module;
+
+/** \brief Defines the number of keys (keyboard + mous) that we can bind to.
+ * 
+ * As the keysym enum of SDL has about 320 keys defined and we might have some
+ * more we set this define to 400 which should suffice. See also the file
+ * keytable.h
+ */
+#define BINDING_KEYS_LAST 400
+
+/** \brief Converts a string into the corresponding keycode */
+int convert_keystring (const char *key_val);
+
+/** \brief All input is sent here and distributed from here
+ *
+ *	Distributes and modifies the Model and indirectly the view by modifying the
+ *	camera. It also holds the configuration of the keybindings and sends
+ *	commands to the CommandQueue.
+ */
+
+class ControllerBase : public Module { 
+	public:
+		/** \brief Processes all inputs and performs all the controlling for the
+		 * current frame. */
+		void Process ();
+		/** \brief Returns the current mouse position in screen coordinates */
+		void GetMouseScreenPosition (int *pos_out) {
+			pos_out[0] = mMouseScreenPosition[0];
+			pos_out[1] = mMouseScreenPosition[1];
+		}
+		void GetMouseWorldPosition (float *pos_out) {
+			pos_out[0] = mMouseWorldPosition[0];
+			pos_out[1] = mMouseWorldPosition[1];
+			pos_out[2] = mMouseWorldPosition[2];
+		}
+		bool BindKey (int key, const char *command);
+
+	protected:
+		/** \brief Initializes the system */
+		virtual int OnInit (int argc, char* argv[]);
+		/** \brief Destroys the system (must be called!) */
+		virtual void OnDestroy ();
+		/** \brief Registering of the commands of the ControllerBase */
+		virtual void OnRegisterCommands ();
+
+		/** \brief Processes all Events reported by SDL_PollEvent */
+		virtual void ProcessEvents ();
+
+		/** \brief Keyboard processing */
+		bool OnKeyDown (const SDL_keysym &keysym);
+		/** \brief Keyboard processing */
+		bool OnKeyUp (const SDL_keysym &keysym);
+		
+		/** \brief Mouse processing */
+		bool OnMouseButtonDown (Uint8 button, Uint16 xpos, Uint16 ypos);
+		/** \brief Mouse processing */
+		bool OnMouseButtonUp (Uint8 button, Uint16 xpos, Uint16 ypos);
+		/** \brief Mouse processing */
+		bool OnMouseMotion (const int xnew, const int ynew);
+
+		/** \brief Resizes the size of the View */
+		bool OnVideoResize (int width, int height);
+
+		/** \brief Needs the Model to modify it */
+		ModelBase * mModel;
+		/** \brief Input might be sent to the Console, hence it is here */
+		Console * mConsole;
+		/** \brief The View which can get modified by Controller */
+		ViewBase *mView;
+
+		/** \brief Stores the current mouse position in screen coordinates */
+		int mMouseScreenPosition[2];
+		/** \brief Stores the current mouse position on the y=0 plane in wolrd * coordinates */
+		float mMouseWorldPosition[3];
+
+		/** \brief Contains all the bindings for the keyboard */
+		std::string mBindings[BINDING_KEYS_LAST];
+
+		friend class Engine;
+};
+
+}
+#endif // _CONTROLLERBASE_H

engine/DrawingsGL.cc

@@ -0,0 +1,247 @@
+#include <math.h>
+
+#include "mathlib.h"
+#include "DrawingsGL.h"
+
+#include <GL/gl.h>
+
+static void CubeVertices () {
+	// front
+	glVertex3f (0.5, -0.5, 0.5);
+	glVertex3f (0.5, -0.5, -0.5);
+	glVertex3f (0.5, 0.5, -0.5);
+	glVertex3f (0.5, 0.5, 0.5);
+	// back
+	glVertex3f (-0.5, 0.5, 0.5);
+	glVertex3f (-0.5, 0.5, -0.5);
+	glVertex3f (-0.5, -0.5, -0.5);
+	glVertex3f (-0.5, -0.5, 0.5);
+	// left
+	glVertex3f (-0.5, -0.5, 0.5);
+	glVertex3f (0.5, -0.5, 0.5);
+	glVertex3f (0.5, 0.5, 0.5);
+	glVertex3f (-0.5, 0.5, 0.5);
+	// right
+	glVertex3f (-0.5, 0.5, -0.5);
+	glVertex3f (0.5, 0.5, -0.5);
+	glVertex3f (0.5, -0.5, -0.5);
+	glVertex3f (-0.5, -0.5, -0.5);
+	// bottom
+	glVertex3f (-0.5, -0.5, -0.5);
+	glVertex3f (0.5, -0.5, -0.5);
+	glVertex3f (0.5, -0.5, 0.5);
+	glVertex3f (-0.5, -0.5, 0.5);
+	// top
+	glVertex3f (-0.5, 0.5, 0.5);
+	glVertex3f (0.5, 0.5, 0.5);
+	glVertex3f (0.5, 0.5, -0.5);
+	glVertex3f (-0.5, 0.5, -0.5);
+}
+
+void DrawWireCube () {
+	glBegin (GL_LINE_STRIP);
+		CubeVertices ();
+	glEnd ();
+}
+
+void DrawSolidCube () {
+	glBegin (GL_QUADS);
+		CubeVertices ();
+	glEnd ();
+}
+
+void DrawCircle () {
+	int i, segments;
+	segments = 20;
+	double x, z, rad, drad;
+
+	drad = (M_PI * 2) / segments;
+
+	// Top
+	glBegin (GL_TRIANGLE_FAN);
+	glVertex3f (0., 0.5, 0.);
+	for (i = 0; i <= segments; i++) {
+		rad = drad * i;
+		sincos (rad, &z, &x);
+		glVertex3f (x * 0.5, 0., -z * 0.5);
+	}
+	glEnd ();
+}
+
+void DrawTorus () {
+	int i, segments;
+	segments = 20;
+	double x, z, rad, drad;
+
+	drad = (M_PI * 2) / segments;
+
+	// Top
+	glBegin (GL_TRIANGLE_FAN);
+	glVertex3f (0., 0.5, 0.);
+	for (i = 0; i <= segments; i++) {
+		rad = drad * i;
+		sincos (rad, &z, &x);
+		glVertex3f (x * 0.5, 0.5, -z * 0.5);
+	}
+	glEnd ();
+
+	// Bottom
+	glBegin (GL_TRIANGLE_FAN);
+	glVertex3f (0., -0.5, 0.);
+	for (i = 0; i <= segments; i++) {
+		rad = -drad * i;
+		sincos (rad, &z, &x);
+		glVertex3f (x * 0.5, -0.5, -z * 0.5);
+	}
+	glEnd ();
+
+	// Sides
+	glBegin (GL_QUAD_STRIP);
+	for (i = 0; i <= segments; i++) {
+		rad = drad * i;
+		sincos (rad, &z, &x);
+		glVertex3f (x * 0.5, 0.5, -z * 0.5);
+		glVertex3f (x * 0.5, -0.5, -z * 0.5);
+	}
+	glEnd ();
+}
+
+void DrawPoint (float r, float x, float y, float z) {
+	glPointSize (r);
+	glBegin (GL_POINTS);
+	glVertex3f (x, y, z);
+	glEnd ();
+	glPointSize (1.);
+}
+
+void DrawAxis() {
+	glColor4f(1., 1., 1., 1.);
+
+	glBegin(GL_LINES);
+	glVertex3f(0., 0., 0.);
+	glVertex3f(1., 0., 0.);
+	glVertex3f(0., 0., 0.);
+	glVertex3f(0., 1., 0.);
+	glVertex3f(0., 0., 0.);
+	glVertex3f(0., 0., 1.);
+	glEnd();
+
+	// X
+	glPushMatrix();
+	glTranslatef(1., 0., 0.);
+	glColor3f(1., 0., 0.);
+	glScalef(0.2, 0.1, 0.1);
+	DrawCone(10);
+	glTranslatef(0.4, 0., 0.);
+	//		glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'x');
+	glPopMatrix();
+
+	// Y
+	glPushMatrix();
+	glTranslatef(0., 1., 0.);
+	glRotatef(90, 0., 0., 1.);
+	glColor3f(0., 1., 0.);
+	glScalef(0.2, 0.1, 0.1);
+	DrawCone(10);
+	glTranslatef(0.4, 0., 0.);
+	//		glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,'y');
+	glPopMatrix();
+
+	// Z
+	glPushMatrix();
+	glTranslatef(0., 0., 1.);
+	glRotatef(90, 0., -1., 0.);
+	glColor3f(0., 0., 1.);
+	glScalef(0.2, 0.1, 0.1);
+	DrawCone(10);
+	glPopMatrix();
+}
+
+void DrawDisc(float radius, int segments) {
+	int i;
+	float radiant;
+	glBegin(GL_TRIANGLE_FAN);
+	glVertex3f(0., 0., 0.);
+	for (i = 0; i <= segments; i++) {
+		radiant = (float) i * ((2 * M_PI) / (float) segments);
+		glVertex3f(radius * cos(radiant), 0., radius * sin(radiant));
+	}
+	glEnd();
+}
+
+void DrawCircle(float radius, int segments) {
+	int i;
+	float radiant;
+	glBegin(GL_LINE_STRIP);
+	glVertex3f(0., 0., 0.);
+	for (i = 0; i <= segments; i++) {
+		radiant = (float) i * ((2 * M_PI) / (float) segments);
+		glVertex3f(radius * cos(radiant), 0., radius * sin(radiant));
+	}
+	glEnd();
+}
+
+void DrawCone(int segments) {
+	int i;
+	float radiant;
+
+	glBegin(GL_TRIANGLE_FAN);
+	glVertex3f(1., 0., 0.);
+	for (i = 0; i <= segments; i++) {
+		radiant = (float) (i * (2. * M_PI) / (float) segments);
+
+		glVertex3f(0., cos(radiant), sin(radiant));
+	}
+
+	glEnd();
+}
+
+void DrawVector(vector3d start, vector3d end) {
+	vector3d direction (end - start);
+
+	glColor3f(1., 1., 1.);
+    glLineWidth(2.);
+    glBegin(GL_LINES);
+    glVertex3f(start[0], start[1], start[2]);
+    glVertex3f(end[0], end[1], end[2]);
+  glEnd();
+  glLineWidth(1.);
+
+	vector3d right;
+	vector3d up;
+	vector3d direction_norm = direction / direction.length();
+	float cone_radius = 0.15;
+	vector3d conebottom = end - direction_norm * 0.3;
+
+	// Draw the tip
+	if (fabs(direction[0]) > fabs(direction[1]) && fabs(direction[2]) > fabs(direction[1])) {
+		up.setValues (0., 1., 0.);
+		vector3d right = direction.cross (up);
+		right = right / right.length();
+
+		int i;
+		int segments = 20.;
+		float rad_delta = 2. * M_PI / (float) segments;
+		double s,c;
+
+		glColor3f(0.2, 0.2, 0.5);
+		glPointSize (10.);
+		glBegin (GL_TRIANGLE_FAN);
+		glVertex3f (end[0], end[1], end[2]);
+
+		for (i = 0; i <= segments; i ++) {
+			sincos (i * rad_delta, &s, &c);
+			glVertex3f (conebottom[0] + right[0] * cone_radius * c, conebottom[1] + s * cone_radius, conebottom[2] + right[2] * cone_radius * c);
+		}
+
+		glEnd ();
+		glBegin (GL_TRIANGLE_FAN);
+		glVertex3f (conebottom[0], conebottom[1], conebottom[2]);
+		for (i = 0; i <= segments; i ++) {
+			sincos (i * rad_delta, &s, &c);
+			glVertex3f (conebottom[0] + right[0] * cone_radius * c, conebottom[1] + s * cone_radius, conebottom[2] + right[2] * cone_radius * c);
+		}
+
+		glEnd ();
+	}
+}

engine/DrawingsGL.h

@@ -0,0 +1,21 @@
+#ifndef _DRAWINGSGL_H
+#define _DRAWINGSGL_H
+
+#ifdef WIN32
+	#include <windows.h>
+#endif
+
+struct vector3d;
+
+void DrawWireCube ();
+void DrawSolidCube ();
+void DrawCircle ();
+void DrawTorus ();
+void DrawPoint (float r, float x, float y, float z);
+void DrawAxis();
+void DrawDisc(float radius, int segments);
+void DrawCircle(float radius, int segments);
+void DrawCone(int segments);
+void DrawVector(vector3d start, vector3d end);
+
+#endif /* _DRAWINGSGL_H */

engine/Engine.cc

@@ -0,0 +1,353 @@
+#include "Engine.h"
+#include "Logging.h"
+#include "Variables.h"
+#include "Commands.h"
+
+#include "PhysicsBase.h"
+#include "CameraBase.h"
+
+#include "ViewBase.h"
+#include "ModelBase.h"
+#include "ControllerBase.h"
+
+#include "EntityFactoryBase.h"
+#include "EventsBase.h"
+
+#include <iostream>
+#include <cstdio>
+#include <cstdarg>
+#include <cstdlib>
+#include <assert.h>
+
+int vasprintf (char **result, const char *format, va_list *string) {
+	return 0;
+}
+
+namespace Engine {
+
+/* Globaly visible classes */
+Engine* EngineInstance = NULL;
+
+/*
+ * Inherited Module functions
+ */
+int Engine::OnInit (int argc, char* argv[]) {
+	EngineInstance = this;
+	mStatus = EngineStatusUndefined;
+
+	/* Initialization of the base modules */
+	if (mLogging == NULL)
+		mLogging = new Logging ();
+
+	if (! mLogging ) {
+		SetError ("Could not allocate memory for Logging!");
+		exit (-1);
+	}
+	mLogging->Init (argc, argv);
+	SetStatus (EngineStatusInitializing);
+
+	if (mEventManager == NULL)
+		mEventManager = new EventManager();
+
+	mEventManager->Init (argc, argv);
+
+	if (mVariables == NULL)
+		mVariables = new Variables ();
+	if (! mVariables ) {
+		SetError ("Could not allocate memory for Variables!");
+		exit (-1);
+	}
+	mVariables->Init (argc, argv);
+
+	if (mCommands == NULL)
+		mCommands = new Commands ();
+	if (! mCommands ) {
+		SetError ("Could not allocate memory for Commands!");
+		exit (-1);
+	}
+	mCommands->Init (argc, argv);
+
+	// Initialize the SDL
+	LogDebug ("Initializing SDL");
+	if ( SDL_Init ( SDL_INIT_VIDEO ) < 0) {
+		LogError ("Error initializing SDL: %s", SDL_GetError ());
+		exit (-1);
+	}
+
+
+	/* Model */
+	if (mModel == NULL)
+		mModel = new ModelBase ();
+
+	if (! mModel ) {
+		SetError ("Could not allocate memory for Model!");
+		exit (-1);
+	}
+	
+	/* Initialization of the modules for the model */
+	if (mEntityFactory == NULL)
+		mEntityFactory = new EntityFactoryBase;
+
+	mModel->mEntityFactory = mEntityFactory;
+
+
+	/* Physics */
+	if (mPhysics == NULL) {
+		mPhysics = new PhysicsBase ();
+
+		if (! mPhysics ) {
+			SetError ("Could not allocate memory for Physics!");
+			exit (-1);
+		}
+	}
+
+	mModel->mPhysics = mPhysics;
+	
+	mEntityFactory->Init (argc, argv);
+		mModel->mPhysics->Init (argc, argv);
+	mModel->Init (argc, argv);
+
+	/* View */
+	if (mView == NULL)
+		mView = new ViewBase ();
+
+	if (! mView ) {
+		SetError ("Could not allocate memory for View!");
+		exit (-1);
+	}
+
+	mView->mCamera = new CameraBase ();
+	mView->mCamera->Init (argc, argv);
+
+	mView->mModel = mModel;
+	mView->Init (argc, argv);
+
+	/* Controller */
+	if (mController == NULL)
+		mController = new ControllerBase ();
+
+	if (! mController ) {
+		SetError ("Could not allocate memory for Controller!");
+		exit (-1);
+	}
+
+	mController->mModel = mModel;
+	mController->mView = mView;
+
+	mController->Init (argc, argv);
+
+	/* Now register the commands */
+	mLogging->RegisterCommands ();
+	mVariables->RegisterCommands ();
+	mCommands->RegisterCommands ();
+	
+	mModel->mPhysics->RegisterCommands ();
+	mModel->RegisterCommands ();
+
+	mView->mCamera->RegisterCommands ();
+	mView->RegisterCommands ();
+	
+	mController->RegisterCommands ();
+
+	RegisterCommands ();
+	
+	/* Now we are done */
+	SetStatus (EngineStatusInitialized);
+
+	return 0;
+}
+
+void Engine::OnDestroy () {
+	SetStatus (EngineStatusDestroying);
+
+	// Quit the SDL
+	SDL_Quit ();
+
+	if (mController) {
+		mController->Destroy ();
+		delete mController;
+		mController = NULL;
+	}
+
+	if (mView) {
+		if (mView->mCamera ) {
+			mView->mCamera->Destroy ();
+			delete mView->mCamera;
+		}
+
+		mView->Destroy ();
+		delete mView;
+		mView = NULL;
+	}
+
+	if (mModel) {
+		mModel->Destroy ();
+
+		if (mModel->mPhysics ) {
+			mModel->mPhysics->Destroy ();
+			delete mModel->mPhysics;
+		}
+
+	delete mModel;
+		mModel = NULL;
+	}
+
+	if (mCommands) {
+		mCommands->Destroy ();
+		delete mCommands;
+		mCommands = NULL;
+	}
+
+	if (mVariables) {
+		mVariables->Destroy ();
+		delete mVariables;
+		mVariables = NULL;
+	}
+
+	SetStatus (EngineStatusStopped);
+
+	if (mEventManager) {
+		mEventManager->Destroy();
+		delete mEventManager;
+		mEventManager = NULL;
+	}
+
+	if (mLogging) {
+		mLogging->Destroy ();
+		delete mLogging;
+		mLogging = NULL;
+	}
+
+	mStatus = EngineStatusUndefined;
+	EngineInstance = NULL;
+}
+
+/*
+ * Module specific functions
+ */
+void Engine::SetStatus (EngineStatus new_status) {
+	LogDebug ("EngineStatus Change: '%d' -> '%d'", mStatus, new_status);
+	mStatus = new_status;
+}
+
+EngineStatus Engine::GetStatus () {
+	return mStatus;
+}
+
+void Engine::OnMainLoop () {
+	SetStatus (EngineStatusRunning);
+
+	while (mStatus == EngineStatusRunning) {
+		mController->Process ();
+		mCommands->QueueExecute ();
+		mEventManager->Process();
+		mModel->UpdateTimer ();
+		mModel->Process ();
+		mView->Draw ();
+	}
+}
+
+void Engine::SetError (const char* str, ...) {
+	static char msg[LOG_MAX_MESSAGE_LENGTH];
+	static int last_length = LOG_MAX_MESSAGE_LENGTH;
+	int i;
+
+	for (i = 0; i < last_length; i++)
+		msg[i] = 0;
+
+	va_list ap;
+	va_start(ap, str);
+	vsprintf(msg, str, ap);
+	va_end(ap);
+
+	mErrorString = msg;
+
+	last_length = strlen (msg);
+}
+
+const char* Engine::GetError () {
+	return mErrorString.c_str();
+}
+
+/*
+ * Global functions
+ */
+void EngineSetError (const char* str, ...) {
+	if (EngineInstance == NULL) {
+		std::cerr << "Error: Engine Instance not yet initialized!" << std::endl;
+		assert (0);
+	}
+
+	static char msg[LOG_MAX_MESSAGE_LENGTH];
+	static int last_length = LOG_MAX_MESSAGE_LENGTH;
+	int i;
+
+	for (i = 0; i < last_length; i++)
+		msg[i] = 0;
+
+	va_list ap;
+	va_start(ap, str);
+	vsprintf(msg, str, ap);
+	va_end(ap);
+
+	EngineInstance->SetError (msg);
+
+	last_length = strlen (msg);
+}
+
+const char* EngineGetError () {
+	if (EngineInstance == NULL) {
+		std::cerr << "Error: Engine Instance not yet initialized!" << std::endl;
+		assert (0);
+	}
+
+	return EngineInstance->GetError ();
+}
+
+void EngineSetStatus (const EngineStatus status) {
+	if (EngineInstance == NULL) {
+		std::cerr << "Error: Engine Instance not yet initialized!" << std::endl;
+		assert (0);
+	}
+	
+	EngineInstance->SetStatus (status);
+}
+
+EngineStatus EngineGetStatus () {
+	if (EngineInstance == NULL) {
+		std::cerr << "Error: Engine Instance not yet initialized!" << std::endl;
+		assert (0);
+	}
+	
+	return EngineInstance->GetStatus ();
+}
+
+ModelBase* EngineGetModel () {
+	if (EngineInstance == NULL) {
+		std::cerr << "Error: Engine Instance not yet initialized!" << std::endl;
+		assert (0);
+	}
+	
+	return EngineInstance->GetModel();
+}
+
+ViewBase* EngineGetView () {
+	if (EngineInstance == NULL) {
+		std::cerr << "Error: Engine Instance not yet initialized!" << std::endl;
+		assert (0);
+	}
+
+	return EngineInstance->GetView();
+}
+
+ControllerBase* EngineGetController () {
+	if (EngineInstance == NULL) {
+		std::cerr << "Error: Engine Instance not yet initialized!" << std::endl;
+		assert (0);
+	}
+
+	return EngineInstance->GetController();
+}
+
+}
+

engine/Engine.h

@@ -0,0 +1,167 @@
+#ifndef _ENGINE_H
+#define _ENGINE_H
+
+#include <globals.h>
+
+#include <assert.h>
+
+#include <iostream>
+#include <fstream>
+#include <sstream>
+#include <string>
+#include <vector>
+#include <map>
+#include <queue>
+#include <bitset>
+
+#include "Module.h"
+
+// Some ugly #defines
+
+/** \brief Defines the number of keys that can be defined for an EntityController
+ *
+ * The current state of the controls for an entity is stored in an std::bitset
+ * and each bit tells us whether the key is pressed or not. Unfortunately we
+ * have to know the number of bits that are to be reserved in advance so this
+ * is hard coded into the library for now.
+ */
+#define ENTITY_CONTROLLER_MAX_KEY_STATES 64
+
+namespace Engine {
+
+class ModelBase;
+class ViewBase;
+class ControllerBase;
+class PhysicsBase;
+class EntityFactoryBase;
+class EventManager;
+
+class Logging;
+class Commands;
+class Variables;
+class Variable;
+
+enum EngineStatus {
+	EngineStatusUndefined = 0,
+	EngineStatusInitializing,
+	EngineStatusInitialized,
+	EngineStatusRunning,
+	EngineStatusStopping,
+	EngineStatusStopped,
+	EngineStatusDestroying
+};
+
+/** \brief The outermost class which contains just everything!
+ *
+ * Engine::Engine takes care of initializing, running and destroying the whole
+ * Engine.
+ *
+ * When Initialize called, the submodules are created by Engine and
+ * initializes them. There are two initialization phases:
+ * - Basemodules initialization:
+ *   The first phase creates the base modules such as Engine::Logging,
+ *   Engine::Variables and Engine::Commands and calls Initialize () on them.
+ * - ModelViewController initialization:  
+ *   In the second phase at first the Submodules for each Engine::ModelBase, Engine::ViewBase and
+ *   Engine::ControllerBase are allocated an initialized. Then the Engine::ModelBase,
+ *   Engine::View and Engine::ControllerBase Modules are initialized.
+ */
+class Engine : public Module {
+	public:
+		Engine () {
+			mModel = NULL;
+			mView = NULL;
+			mController = NULL;
+			mLogging = NULL;
+			mCommands = NULL;
+			mVariables = NULL;
+			mEntityFactory = NULL;
+			mEventManager = NULL;
+		}
+
+		virtual void MainLoop () {
+			OnMainLoop ();
+		}
+
+		void SetModel (ModelBase *model) { mModel = model; };
+		ModelBase* GetModel () { return mModel; };
+		void SetView (ViewBase *view) { mView = view; };
+		ViewBase* GetView () { return mView; };
+		void SetPhysics (PhysicsBase *physics) { mPhysics = physics; };
+		PhysicsBase* GetPhysics () { return mPhysics; };
+		void SetEntityFactory (EntityFactoryBase *entityfactory) { mEntityFactory = entityfactory; };
+
+		void SetController (ControllerBase *controller) { mController = controller; };
+		ControllerBase* GetController () { return mController; };
+		void SetLogging (Logging *logging) { mLogging = logging; };
+		void SetCommands (Commands *commands) { mCommands = commands; };
+		void SetVariables (Variables *variables) { mVariables = variables; };
+
+		void SetError (const char* str, ...);
+		const char* GetError ();
+		void SetStatus (const EngineStatus new_status);
+		EngineStatus GetStatus ();
+
+	private:
+		// Engine must not be created with the standard constructor! 
+		// It must be ensured, that the correct EntityFactory is used!
+	protected:
+		virtual int OnInit (int argc, char* argv[]);
+		virtual void OnDestroy ();
+		virtual void OnRegisterCommands ();
+
+		void OnMainLoop ();
+
+		ModelBase *mModel;
+		ViewBase *mView;
+		ControllerBase *mController;
+		PhysicsBase *mPhysics;
+		EntityFactoryBase *mEntityFactory;
+		EventManager *mEventManager;
+
+		Logging *mLogging;
+		Commands *mCommands;
+		Variables *mVariables;
+
+		std::string mErrorString;
+		EngineStatus mStatus;
+};
+
+}
+
+/*
+ * Global visible functions and classes
+ */
+
+namespace Engine {
+/* Globaly visible classes */
+extern Engine* EngineInstance;
+
+/** \brief Sets the Engine::mErrorString to the given message */
+void EngineSetError (const char* str, ...);
+/** \brief Returns Engine::mErrorString */
+const char* EngineGetError ();
+
+/** \brief Sets the current state of the Engine */
+void EngineSetStatus (const EngineStatus status);
+/** \brief Returns the current state of the Engine */
+EngineStatus EngineGetStatus ();
+
+/** \brief Global access functions for the Model */
+ModelBase* EngineGetModel ();
+/** \brief Global access functions for the View */
+ViewBase* EngineGetView ();
+/** \brief Global access functions for the Controller */
+ControllerBase* EngineGetController ();
+
+}
+
+/* Include the globally visible declarations of the other modules */
+#include "LoggingGlobal.h"
+#include "VariablesGlobal.h"
+#include "CommandsGlobal.h"
+#include "ModelBaseGlobal.h"
+#include "ViewBaseGlobal.h"
+#include "EventsBaseGlobal.h"
+
+#endif // _ENGINE_H

engine/EngineCommands.cc

@@ -0,0 +1,15 @@
+#include "Engine.h"
+
+namespace Engine {
+
+bool Cmd_EngineQuit (std::vector<std::string> args) {
+	EngineSetStatus (EngineStatusStopping);
+
+	return true;
+}
+
+void Engine::OnRegisterCommands () {
+	AddCommand ("quit", Cmd_EngineQuit);
+}
+		
+}

engine/EntityBase.cc

@@ -0,0 +1,45 @@
+#include "EntityBase.h"
+
+#include "coll2d.h"
+
+namespace Engine {
+
+bool EntityControllerState::GetKey (int state) {
+	assert (state < ENTITY_CONTROLLER_MAX_KEY_STATES && state >= 0);
+
+	return mKeyState.test (state);
+}
+
+void EntityControllerState::SetKey (int state) {
+	assert (state < ENTITY_CONTROLLER_MAX_KEY_STATES && state >= 0);
+	
+	LogDebug ("Setting Entity Key State %d", state);
+	mKeyState.set (state);
+}
+
+void EntityControllerState::UnsetKey (int state) {
+	assert (state < ENTITY_CONTROLLER_MAX_KEY_STATES && state >= 0);
+	
+	LogDebug ("Unsetting Entity Key State %d", state);
+	mKeyState.reset (state);
+}
+
+void EntityBase::SetControllerKeyState (int state) {
+	if (!mControllerState) {
+		LogError ("Error when trying to send a KeyState to an Entity that has no EntityControllerState!");
+		assert (0);
+	}
+
+	mControllerState->SetKey (state);
+}
+
+void EntityBase::UnsetControllerKeyState (int state) {
+	if (!mControllerState) {
+		LogError ("Error when trying to send a KeyState to an Entity that has no EntityControllerState!");
+		assert (0);
+	}
+
+	mControllerState->UnsetKey (state);
+}
+
+}

engine/EntityBase.h

@@ -0,0 +1,154 @@
+#ifndef _ENTITYBASE_H
+#define _ENTITYBASE_H
+
+#include "Engine.h"
+#include "mathlib.h"
+
+#include "EntityBaseTypes.h"
+
+namespace coll2d {
+	class Shape;
+}
+
+namespace Engine {
+
+/** \brief Contains all the information for the physical simulation of the
+ * Entity
+ *
+ * Every Engine::Entity that should be simulated in the Engine::Physics module
+ * must have a Engine::EntityPhysicState counterpart. It represents the state
+ * of the Entity in the physical world of the engine.
+ *
+ * The Copy-Constructor and Assignment Operator is defined in EntityPhysics.cc
+ * as they require a call to coll2d::Shape::getCopy() which again requires the
+ * inclusion of coll2d.h which should stay out of Entity.h for faster
+ * compilation.
+ */
+struct EntityPhysicState {
+	/** \brief Standard constructor */
+	EntityPhysicState ():
+		mId (0),
+		mBaseType (EntityBaseTypeNone),
+		mPosition (0., 0., 0.),
+		mOrientation (0., 0., 0.),
+		mVelocity (0., 0., 0.),
+		mAngleVelocity (0.),
+		mRadius (0.),
+		mShape (NULL),
+		mStatic (false),
+		mAlive (true),
+		mContactNormals() {};
+
+	virtual ~EntityPhysicState() {};
+
+	/** \brief Copy constructor */
+	EntityPhysicState (const EntityPhysicState& state);
+
+	/** \brief Assignment operator */
+	EntityPhysicState& operator= (const EntityPhysicState& state);
+
+	unsigned int mId;
+	/** \brief The type from the game's perspective */
+	int mType;
+	/** \brief The type from the engine's perspective */
+	EntityBaseType mBaseType;
+
+	vector3d mPosition;
+	vector3d mOrientation;
+	vector3d mVelocity;
+	float	mAngleVelocity;
+	float mRadius;
+
+	coll2d::Shape* mShape;
+	bool mStatic;
+
+	/** \brief If false, the entity will be removed at the end of the frame. */
+	bool mAlive;
+
+	vector3d &GetPosition ();
+	vector3d &GetVelocity ();
+	vector3d &GetOrientation ();
+	float &GetAngleVelocity ();
+
+	void SetPosition (const vector3d &position);
+	void SetVelocity (const vector3d &velocity);
+	void SetOrientation (const vector3d &orientation);
+	void SetAngleVelocity (const float &angle_velocity);
+
+	/** \brief Transforms the given vector in local space to world coordinates */
+	void Globalize (vector3d &vec);
+	/** \brief Transforms the given vector from world coordinates to local
+	 * coordinates */
+	void Localize (vector3d &vec);
+	/** \brief Performs only the rotational part of Globalize() */
+	void GlobalizeRotation (vector3d &vec);
+	/** \brief Performs only the rotational part of Localize() */
+	void LocalizeRotation (vector3d &vec);
+
+	/** \brief Updates the shape for collision detection */
+	void UpdateShape ();
+
+	/** \brief Contains all the normal vectors of the planes with which we are in contact. */
+	std::map<unsigned int, vector3d> mContactNormals;
+};
+
+/** \brief Represents the current state of the Entity controller 
+ *
+ * This struct stores the current state for all EntityControllerKeyStates
+ * (e.g. whether the keys are currently pressed or not).
+ *
+ * \todo [Low] The current design is very unflexible. Is there a better way?
+ */
+struct EntityControllerState {
+	std::bitset<ENTITY_CONTROLLER_MAX_KEY_STATES> mKeyState;
+
+	bool GetKey (int state);
+	void SetKey (int state);
+	void UnsetKey (int state);
+};
+
+/** \brief Represents the base of everything that exists in the engine
+ *
+ * An Engine::Entity has different representations in the different
+ * submodules. Engine::EntityPhysicState stores the physical representation of
+ * the entity like its position, velocity, orientation, and shape.
+ * Engine::EntityVisualState is used for drawing an Entity by Engine::View.
+ */
+struct EntityBase {
+	unsigned int mId;
+	/** \brief The type from the game's perspective */
+	int mType;
+	/** \brief The type from the engine's perspective */
+	EntityBaseType mBaseType;
+
+	EntityPhysicState *mPhysicState;
+	EntityControllerState *mControllerState;
+
+	/** \brief Applies the state of the EntityControllerState to the EntityPhysicState etc. */
+	virtual void Update (float delta_sec) {};
+
+	/** \brief Adds the given state to the current movement state of the Entity */
+	virtual void SetControllerKeyState (int state);
+	/** \brief Removes the given state to the current movement state of the Entity */
+	virtual void UnsetControllerKeyState (int state);
+
+	/** \brief Helper function to set the id to all substates */
+	void SetId (unsigned int id) {
+		mId = id;
+
+		if (mPhysicState)
+			mPhysicState->mId = id;
+	}
+
+	/** Executes game logic for the collision event
+	 * \returns true  if it was able to react for this type of entity, false
+	 *          false otherwise
+	 */
+	virtual bool CollisionEvent (EntityBase* entity_state) {
+		return false;
+	}
+};
+
+}
+
+#endif // _ENTITYBASE_H

engine/EntityBaseTypes.h

@@ -0,0 +1,59 @@
+#ifndef _ENTITYBASETYPES_H
+#define _ENTITYBASETYPES_H
+
+namespace Engine {
+
+struct EntityBase;
+struct EntityPhysicState;
+struct EntityControllerState;
+
+/** \brief Represents the different types of an entity from the Engines' perspective
+ *
+ * The different EntityBaseTypes define their basic behaviour when it comes to
+ * events such as collisions between two Entities.
+ *
+ * Here is an overview how collisions are handled:
+ * 
+ * <table>
+ * <tr>
+ *   <td></td>
+ *   <td>EntityBaseTypeParticle</td>
+ *   <td>EntityBaseTypeBlock</td>
+ *   <td>EntityBaseTypeActor</td>
+ * </tr>
+ * <tr>
+ *   <td>EntityBaseTypeParticle</td>
+ *   <td>-</td>
+ *   <td>C</td>
+ *   <td>C</td>
+ * </tr>
+ * <tr>
+ *   <td>EntityBaseTypeBlock</td>
+ *   <td>C</td>
+ *   <td>C</td>
+ *   <td>C</td>
+ * </tr>
+ * <tr>
+ *   <td>EntityBaseTypeActor</td>
+ *   <td>C</td>
+ *   <td>C</td>
+ *   <td>C</td>
+ * </tr>
+ * </table>
+ *
+ * A 'C' means that Engine::Physics::CheckPossibleCollisionPair() will return
+ * true (this results that the two types cannot penetrate each other).
+ */
+enum EntityBaseType {
+	EntityBaseTypeNone = 0, /**< is the default type and does not collide with anything */
+	EntityBaseTypeBlock,    /**< represents walls etc. that block Particles, Actors and other Blocks */
+	EntityBaseTypeParticle, /**< is used for projectiles or Entities that just move
+														but are "dumb" apart from that */
+	EntityBaseTypeActor,    /**< is the type for objects that interact with each other */
+	EntityBaseTypeLast      /**< marks the maximum number of EntityBaseType */
+};
+
+
+}
+
+#endif // _ENTITYBASETYPES_H

engine/EntityFactoryBase.cc

@@ -0,0 +1,117 @@
+#include <iostream>
+
+#include "EntityFactoryBase.h"
+
+#include "EntityBase.h"
+#include "coll2d.h"
+
+namespace Engine {
+
+int EntityFactoryBase::OnInit (int argc, char* argv[]) {
+	LogMessage ("Initializing EntityFactory");
+
+	return 0;
+}
+
+EntityPhysicState* EntityFactoryBase::CreateEntityPhysicState (int type) {
+	// In this simple factory the type is simply seen as the EntityBaseType.
+	// However to prevent errors we do a simple check vor validity.
+	if (type < 0 || type >> EntityBaseTypeLast ) {
+		LogError ("Cannot create Entity with type %d: invalid type!", type);
+		assert (0);
+	}
+	EntityBaseType base_type = (EntityBaseType) type;
+
+	// Create the Entity
+	EntityPhysicState* entity_physics = new EntityPhysicState ();
+	if (!entity_physics) {
+		LogError ("Could not allocate enough memory for EntityPhysicState of type '%d'", type);
+		assert (0);
+	}
+
+	// default values for all entities
+	entity_physics->mBaseType = base_type;
+
+  // specific values for each Entity base_type
+	if (base_type == EntityBaseTypeNone) {
+		entity_physics->mShape = new coll2d::Sphere (0.01);
+		assert (entity_physics->mShape);
+	} else if (base_type == EntityBaseTypeActor) {
+		entity_physics->mShape = new coll2d::Sphere (0.4);
+		assert (entity_physics->mShape);
+	} else if (base_type == EntityBaseTypeBlock) {
+		entity_physics->mShape = new coll2d::Polygon (4);
+		assert (entity_physics->mShape);
+
+		static_cast<coll2d::Polygon*> (entity_physics->mShape)->setVertice (0, vector3d (-0.5, 0., 0.5));
+		static_cast<coll2d::Polygon*> (entity_physics->mShape)->setVertice (1, vector3d (0.5, 0., 0.5));
+		static_cast<coll2d::Polygon*> (entity_physics->mShape)->setVertice (2, vector3d (0.5, 0., -0.5));
+		static_cast<coll2d::Polygon*> (entity_physics->mShape)->setVertice (3, vector3d (-0.5, 0., -0.5));
+	} else if (base_type == EntityBaseTypeParticle) {
+		entity_physics->mShape = new coll2d::Sphere (0.05);
+		assert (entity_physics->mShape);
+	} else {
+		LogError ("No EntityPhysicState defined for Entity base_type '%d'", base_type);
+		assert (0);
+	}
+
+	return entity_physics;
+}
+
+EntityControllerState* EntityFactoryBase::CreateEntityControllerState (int type) {
+	// In this simple factory the type is simply seen as the EntityBaseType.
+	// However to prevent errors we do a simple check vor validity.
+	if (type < 0 || type >> EntityBaseTypeLast ) {
+		LogError ("Cannot create Entity with type %d: invalid type!", type);
+		assert (0);
+	}
+	EntityBaseType base_type = (EntityBaseType) type;
+
+	// Create the Entity
+	EntityControllerState* entity_controller = NULL;
+
+	// specific values for each Entity base_type
+	if (base_type == EntityBaseTypeNone) {
+	} else if (base_type == EntityBaseTypeActor) {
+		entity_controller = new EntityControllerState ();
+		if (!entity_controller) {
+			LogError ("Could not allocate enough memory for EntityControllerState of type '%d'", type);
+			assert (0);
+		}
+	} else if (base_type == EntityBaseTypeBlock) {
+	} else if (base_type == EntityBaseTypeParticle) {
+	} else {
+		LogError ("No EntityPhysicState defined for Entity base_type '%d'", base_type);
+		assert (0);
+	}
+
+	return entity_controller;
+}
+
+EntityBase* EntityFactoryBase::CreateEntity (int type) {
+	// In this simple factory the type is simply seen as the EntityBaseType.
+	// However to prevent errors we do a simple check vor validity.
+	if (type < 0 || type >> EntityBaseTypeLast ) {
+		LogError ("Cannot create Entity with type %d: invalid type!", type);
+		assert (0);
+	}
+	EntityBaseType base_type = (EntityBaseType) type;
+
+	// Create the Entity
+	EntityBase *entity = new EntityBase;
+	entity->mBaseType = base_type;
+
+	if (!entity) {
+		LogError ("Could not allocate enough memory for EntityVisualState of type '%d'", type);
+		assert (0);
+	}
+
+	entity->mPhysicState = CreateEntityPhysicState (type);
+	entity->mControllerState = CreateEntityControllerState (type);
+
+	return entity;
+}
+
+}
+
+

engine/EntityFactoryBase.h

@@ -0,0 +1,35 @@
+#ifndef _ENTITYFACTORYBASE_H
+#define _ENTITYFACTORYASE_H
+
+#include "Module.h"
+
+namespace Engine {
+
+	struct EntityBase;
+
+	struct EntityPhysicState;
+	struct EntityControllerState;
+
+	/** \brief Takes care of the creation of user-defined Entities
+	 *
+	 * To be able to define custom types of Entities we use a Object Factory for
+	 * which the actual CreateEntityXYZState () function can be overloaded with
+	 * the creation of custom types.
+	 *
+	 * The method EntityFactory::CreateEntity() will be called by the
+	 * Model::CreateEntity() function which also takes care of registering the
+	 * Entity to required submodules.
+	 */
+	class EntityFactoryBase : public Module {
+		public: EntityFactoryBase () {};
+			virtual EntityPhysicState* CreateEntityPhysicState (int type);
+			virtual EntityControllerState* CreateEntityControllerState (int type);
+
+			virtual EntityBase* CreateEntity (int type);
+
+		protected:
+			virtual int OnInit (int argc, char* argv[]);
+	};
+}
+
+#endif // _ENTITYFACTORYBASE_H

engine/EnumToString.h

@@ -0,0 +1,21 @@
+// File name: "EnumToString.h"
+//
+// From: http://www.codeproject.com/KB/cpp/C___enums_to_strings.aspx
+//
+// Thanks to Marcos F. Cardoso
+
+#undef DECL_ENUM_ELEMENT
+#undef BEGIN_ENUM
+#undef END_ENUM
+
+#ifndef GENERATE_ENUM_STRINGS
+    #define DECL_ENUM_ELEMENT( element ) element
+    #define BEGIN_ENUM( ENUM_NAME ) typedef enum tag##ENUM_NAME
+    #define END_ENUM( ENUM_NAME ) ENUM_NAME; \
+            const char* GetString##ENUM_NAME(enum tag##ENUM_NAME index);
+#else
+		#define DECL_ENUM_ELEMENT( element ) #element
+    #define BEGIN_ENUM( ENUM_NAME ) const char* gs_##ENUM_NAME [] =
+    #define END_ENUM( ENUM_NAME ) ; const char* GetString##ENUM_NAME(enum \
+            tag##ENUM_NAME index){ return gs_##ENUM_NAME [index]; }
+#endif

engine/EventsBase.cc

@@ -0,0 +1,88 @@
+#include "EventsBase.h"
+#include "Logging.h"
+
+namespace Engine {
+
+EventManager* EventManagerInstance = NULL;
+
+int EventManager::OnInit (int argc, char* argv[]) {
+	EventManagerInstance = this;
+
+	return 0;
+}
+
+void EventManager::OnDestroy() {
+	EventManagerInstance = NULL;
+}
+
+bool EventManager::RegisterListener (const EventListenerBase *listener, const int event_type) {
+	LogDebug ("Registering Event listener %x for event type %d", listener, event_type);
+
+	mEventTypeListeners[event_type].push_back(listener);
+	return true;
+}
+
+void EventManager::Process () {
+	while (mQueuedEvents.size() > 0) {
+		TriggerEvent (mQueuedEvents.front());
+		mQueuedEvents.pop();
+	}
+}
+
+bool EventManager::QueueEvent (const EventBasePtr &event) {
+	if (!HasEventTypeListener(event->mEventType))
+		return false;
+
+	mQueuedEvents.push (event);
+
+	return true;
+}
+
+bool EventManager::TriggerEvent (const EventBasePtr &event) {
+	if (!HasEventTypeListener (event->mEventType))
+		return false;
+
+	std::vector<const EventListenerBase*>::iterator listener_iter = mEventTypeListeners[event->mEventType].begin();
+	for ( ; listener_iter != mEventTypeListeners[event->mEventType].end(); listener_iter++) {
+		if ((*listener_iter)->HandleEvent (event))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Global Functions
+ */
+/** \brief Registers a listener to a given event type */
+bool RegisterListener (const EventListenerBase *listener, const int event_type) {
+	if (!EventManagerInstance) {
+		LogError ("Could not register EventListenerBase: EventManager not initialized!");
+		return false;
+	}
+
+	return EventManagerInstance->RegisterListener (listener, event_type);
+}
+
+/** \brief Calls all event listeners to handle the events */
+bool QueueEvent (const EventBasePtr &event) {
+	if (!EventManagerInstance) {
+		LogError ("Could not queue event: EventManager not initialized!");
+		return false;
+	}
+
+	return EventManagerInstance->QueueEvent (event);
+}
+
+/** \brief Calls the listener handlers immediately */
+bool TriggerEvent (const EventBasePtr &event) {
+	if (!EventManagerInstance) {
+		LogError ("Could not trigger event: EventManager not initialized!");
+		return false;
+	}
+
+	return EventManagerInstance->TriggerEvent (event);
+}
+
+};
+

engine/EventsBase.h

@@ -0,0 +1,88 @@
+#ifndef EVENTSBASE_H
+#define EVENTSBASE_H
+
+#include "Module.h"
+
+#include <boost/shared_ptr.hpp>
+
+#include <string>
+#include <map>
+#include <vector>
+#include <queue>
+
+namespace Engine {
+
+/** \brief Contains all information relevant to the Event */
+struct EventBase {
+	int mEventType;
+
+	/** \brief This might later be used for de-/serializing of the event data */
+	std::string mEventData;
+	float mEventFloat;
+	int mEventInt;
+	unsigned int mEventUnsignedInt;
+};
+
+typedef boost::shared_ptr<EventBase> EventBasePtr;
+
+/** \brief Takes care of the handling of the Event 
+ *
+ * Processing of the Event is done in the EventListenerBase::HandleEvent()
+ * function.
+ */
+class EventListenerBase {
+	public:
+		virtual ~EventListenerBase() {};
+		/** \brief Handles the Event */
+		virtual bool HandleEvent (const EventBasePtr &event) const = 0;
+		void just_for_the_vtable() {};
+
+		/** \brief For debugging */
+		std::string mName;
+};
+
+typedef boost::shared_ptr<EventListenerBase> EventListenerPtr;
+
+/** \brief Keeps track of all the EventListenerBase objects and receives Event notifications. 
+ */
+class EventManager : public Module {
+	public:
+		virtual ~EventManager() {};
+
+		/** \brief Registers a listener to a given event type */
+		bool RegisterListener (const EventListenerBase *listener, const int event_type);
+		/** \brief Calls all event listeners to handle the events */
+		void Process ();
+		/** \brief Queues the until Process() gets called */
+		bool QueueEvent (const EventBasePtr &event);
+		/** \brief Calls the listener handlers immediately */
+		bool TriggerEvent (const EventBasePtr &event);
+
+		/** \brief Returns true if there is a listener for a given event type */
+		bool HasEventTypeListener (const int event_type) {
+			return mEventTypeListeners.find(event_type) != mEventTypeListeners.end();
+		}
+		/** \brief Returns the number of listeners for a given event type */
+		unsigned int GetEventTypeListenerCount (const int event_type) {
+			if (!HasEventTypeListener (event_type))
+				return 0;
+
+			return (mEventTypeListeners.find(event_type))->second.size();
+		}
+		unsigned int GetQueuedEventCount () {
+			return mQueuedEvents.size();
+		}
+
+	protected:
+		virtual int OnInit (int argc, char* argv[]);
+		virtual void OnDestroy();
+
+	private:
+		/** \brief Contains for each event type the list of listeners */
+		std::map <int, std::vector<const EventListenerBase*> > mEventTypeListeners;
+		std::queue <EventBasePtr> mQueuedEvents;
+};
+
+}
+
+#endif /* EVENTSBASE_H */

engine/EventsBaseGlobal.h

@@ -0,0 +1,16 @@
+#ifndef EVENTSBASEGLOBAL_H
+#define EVENTSBASEGLOBAL_H
+
+#include "EventsBase.h"
+
+namespace Engine {
+
+/** \brief Registers a listener to a given event type */
+bool RegisterListener (const EventListenerBase *listener, const int event_type);
+/** \brief Calls all event listeners to handle the events */
+bool QueueEvent (const EventBasePtr &event);
+/** \brief Calls the listener handlers immediately */
+bool TriggerEvent (const EventBasePtr &event);
+
+}
+#endif /* EVENTSBASEGLOBAL_H */

engine/GameEntityBase.cc

@@ -0,0 +1,7 @@
+#include "EntityBase.h"
+#include "ModelBase.h"
+
+namespace Engine {
+
+}
+

engine/Logging.cc

@@ -0,0 +1,173 @@
+#include "Logging.h"
+
+#include <iostream>
+#include <cstdarg>
+#include <cstdlib>
+#include <assert.h>
+
+namespace Engine {
+
+static Logging *LoggingInstance = NULL;
+static LogLevel requested_level = LOG_DEFAULT_LEVEL;
+
+/*
+ * Inherited Module functions
+ */
+int Logging::OnInit (int argc, char* argv[]) {
+	mPrintLevel = requested_level;
+
+	Log (LogLevelDebug, "Logging Init");
+	LoggingInstance = this;
+
+	return 0;
+}
+
+void Logging::OnDestroy () {
+	Log (LogLevelDebug, "Logging Destroy");
+
+	LoggingInstance = NULL;
+}
+
+/*
+ * Module specific functions
+ */
+void Logging::Log (LogLevel level, const char *str, ...) {
+	if (level < mPrintLevel)
+		return;
+
+	static char msg[LOG_MAX_MESSAGE_LENGTH];
+	static int last_length = LOG_MAX_MESSAGE_LENGTH;
+	static int i;
+	
+	for (i = 0; i < last_length; i++)
+		msg[i] = 0;
+
+	va_list ap;
+	va_start(ap, str);
+	vsprintf(msg, str, ap);
+	va_end(ap);
+
+	last_length = strlen (msg);
+	assert (last_length < LOG_MAX_MESSAGE_LENGTH);
+
+	std::cout << msg << std::endl;
+
+	LogEntry log_entry (level, msg);
+	mLogEntries.push_back (log_entry);
+}
+
+void Logging::SetLogPrintLevel (LogLevel print_level) {
+	mPrintLevel = print_level;
+}
+
+const LogEntry &Logging::GetLastEntry () {
+	static LogEntry null_message (LogLevelMessage, "");
+
+	if (mLogEntries.size() > 0) {
+		return mLogEntries[mLogEntries.size() - 1];
+	}
+
+	return null_message;
+}
+
+/*
+ * Globally visible functions 
+ */
+void SetLogPrintLevel (LogLevel print_level) {
+	if (!LoggingInstance) {
+		requested_level = print_level;
+		return;
+	}
+
+	LoggingInstance->SetLogPrintLevel (print_level);
+}
+
+void LogError (const char* str, ...) {
+	assert (LoggingInstance);
+
+	static char msg[LOG_MAX_MESSAGE_LENGTH];
+	static int last_length = LOG_MAX_MESSAGE_LENGTH;
+	static int i;
+	
+	for (i = 0; i < last_length; i++)
+		msg[i] = 0;
+
+	va_list ap;
+	va_start(ap, str);
+	vsprintf(msg, str, ap);
+	va_end(ap);
+
+	last_length = strlen (msg);
+	assert (last_length < LOG_MAX_MESSAGE_LENGTH);
+
+	LoggingInstance->Log (LogLevelError, msg);
+}
+
+void LogWarning (const char* str, ...) {
+	assert (LoggingInstance);
+
+	static char msg[LOG_MAX_MESSAGE_LENGTH];
+	static int last_length = LOG_MAX_MESSAGE_LENGTH;
+	static int i;
+	
+	for (i = 0; i < last_length; i++)
+		msg[i] = 0;
+
+	va_list ap;
+	va_start(ap, str);
+	vsprintf(msg, str, ap);
+	va_end(ap);
+
+	last_length = strlen (msg);
+	assert (last_length < LOG_MAX_MESSAGE_LENGTH);
+
+	LoggingInstance->Log (LogLevelWarning, msg);
+}
+
+void LogMessage (const char* str, ...) {
+	assert (LoggingInstance);
+
+	static char msg[LOG_MAX_MESSAGE_LENGTH];
+	static int last_length = LOG_MAX_MESSAGE_LENGTH;
+	static int i;
+	
+	for (i = 0; i < last_length; i++)
+		msg[i] = 0;
+
+	va_list ap;
+	va_start(ap, str);
+	vsprintf(msg, str, ap);
+	va_end(ap);
+
+	last_length = strlen (msg);
+	assert (last_length < LOG_MAX_MESSAGE_LENGTH);
+
+	LoggingInstance->Log (LogLevelMessage, msg);
+}
+
+void LogDebug (const char* str, ...) {
+	assert (LoggingInstance);
+	static char msg[LOG_MAX_MESSAGE_LENGTH];
+	static int last_length = LOG_MAX_MESSAGE_LENGTH;
+	static int i;
+	
+	for (i = 0; i < last_length; i++)
+		msg[i] = 0;
+
+	va_list ap;
+	va_start(ap, str);
+	vsprintf(msg, str, ap);
+	va_end(ap);
+
+	last_length = strlen (msg);
+	assert (last_length < LOG_MAX_MESSAGE_LENGTH);
+
+	LoggingInstance->Log (LogLevelDebug, msg);
+}
+
+const LogEntry& GetLastLogEntry () {
+	assert (LoggingInstance);
+	return LoggingInstance->GetLastEntry ();
+}
+
+}

engine/Logging.h

@@ -0,0 +1,34 @@
+#ifndef _LOGGING_H
+#define _LOGGING_H
+
+#include "Engine.h"
+
+namespace Engine {
+class Module;
+
+/** \brief All logging goes through this class
+ */
+class Logging : public Module {
+	public:
+		void Log (LogLevel level, const char *str, ...);
+		void SetLogPrintLevel (LogLevel print_level);
+		/** \brief Returns the last LogEntry that was sent to the Logging module
+		 */
+		const LogEntry& GetLastEntry ();
+
+	protected:
+		/** \brief Initializes the system */
+		virtual int OnInit (int argc, char* argv[]);
+		/** \brief Destroys the system (must be called!) */
+		virtual void OnDestroy ();
+
+	private:
+		LogLevel mPrintLevel;
+		/** \brief Stores all log messages that were sent to the Logging module
+		 * \todo Restrict the number of entries to be stored!
+		 */
+		std::vector<LogEntry> mLogEntries;
+};
+
+}
+#endif // _LOGGING_H

engine/LoggingGlobal.h

@@ -0,0 +1,45 @@
+#ifndef _LOGGINGLOBAL_H
+#define _LOGGINGLOBAL_H
+
+namespace Engine {
+
+enum LogLevel {
+	LogLevelDebug = 0,
+	LogLevelWarning,
+	LogLevelMessage,
+	LogLevelError
+};
+
+/** \brief Represents a log message along with its level
+ */
+struct LogEntry {
+	LogEntry (LogLevel level, const char* message) {
+		mLevel = level;
+		mMessage = message;
+	}
+
+	/** \brief the level of the message */
+	LogLevel mLevel;
+	/** \brief the message itself */
+	const char *mMessage;
+};
+
+/* Global visible functions */
+
+/** \brief Sets the level for which messages should be printed out */
+void SetLogPrintLevel (LogLevel print_level);
+
+/** \brief Sends the Message to the Logging system */
+void LogError (const char* str, ...);
+/** \brief Sends the Message to the Logging system */
+void LogWarning (const char* str, ...);
+/** \brief Sends the Message to the Logging system */
+void LogMessage (const char* str, ...);
+/** \brief Sends the Message to the Logging system */
+void LogDebug (const char* str, ...);
+/** \brief Returns the last LogEntry sent to the Logging system */
+const LogEntry &GetLastLogEntry ();
+
+}
+
+#endif // _LOGGINGLOBAL_H

engine/ModelBase.cc

@@ -0,0 +1,295 @@
+#include "ModelBase.h"
+
+#include "PhysicsBase.h"
+#include "EntityBase.h"
+#include "EntityFactoryBase.h"
+
+#include <coll2d.h>
+
+#include <assert.h>
+
+namespace Engine {
+
+static ModelBase* ModelInstance = NULL;
+
+/*
+ * Inherited Module functions
+ */
+int ModelBase::OnInit (int argc, char* argv[]) {
+	LogDebug ("Model Init");
+
+	ModelInstance = this;
+	mKilledEntities.clear ();
+	mEntityIdCounter = 0;
+	mDeltaSec = 0.;
+
+	return 0;
+}
+
+void ModelBase::OnDestroy () {
+	LogDebug ("Model Destroy");
+
+	std::map<unsigned int, EntityBase*>::iterator iter = mEntities.begin ();
+	std::map<unsigned int, EntityBase*>::iterator next = iter;
+	
+	// Since DestroyEntity () also erases the entry in mEntities iter gets
+	// invalid. Therefore we have to store the iterator that follows iter
+	while (iter != mEntities.end ()) {
+		next = iter;
+		next ++;
+		DestroyEntity (iter->first);
+		iter = next;
+	}
+
+	ModelInstance = NULL;
+}
+
+/*
+ * Model specific functions
+ */
+void ModelBase::Process () {
+	// Process the controllers and state of all entities
+	std::map<unsigned int, EntityBase*>::iterator entity_iter = mEntities.begin();
+	do {
+		if (entity_iter->second == NULL) {
+			LogError ("Entity with id %d does not exist!", entity_iter->first);
+			assert (0);
+		}
+		entity_iter->second->Update(mDeltaSec);
+		entity_iter++;
+	} while (entity_iter != mEntities.end());
+
+	// simulate the world
+	mPhysics->Simulate (mDeltaSec, this);
+
+	// remove killed entities
+	unsigned int i;
+	for (i = 0; i < mKilledEntities.size(); i++)
+		UnregisterEntity (mKilledEntities[i]);
+
+	mKilledEntities.clear();
+}
+
+EntityBase* ModelBase::CreateEntity (int type) {
+	// Create a new entity id
+	unsigned int entity_id = CreateEntityId();
+
+	// Call the event
+	OnCreateEntity (type, entity_id);
+	
+	// Create the entity
+	EntityBase* result = mEntityFactory->CreateEntity (type);
+	result->SetId (entity_id);
+
+	// And register it
+	RegisterEntity (result);
+
+	return result;
+}
+
+void ModelBase::RegisterEntity (EntityBase* entity) {
+	unsigned int id = entity->mId;
+	LogDebug ("Registering Entity with id '%d'", id);
+
+	if (mEntities.find(id) != mEntities.end ()) {
+		LogError ("Replacing Entity with id '%d'", id);
+		assert (0);
+	}
+
+	if (entity->mPhysicState)
+		mPhysics->RegisterEntity (entity->mPhysicState);
+
+	mEntities[id] = entity;
+}
+
+void ModelBase::KillEntity (const unsigned int id) {
+	std::map<unsigned int, EntityBase*>::iterator iter = mEntities.find (id);
+
+	if (iter == mEntities.end ()) {
+		LogError ("Could not kill Entity with id '%d': Entity not found!", id);
+		assert (0);
+		return;
+	} else {
+		EntityBase *entity = iter->second;
+
+		// call the event handler
+		OnKillEntity (entity);
+
+		if (entity->mPhysicState) {
+			entity->mPhysicState->mAlive = false;
+		}
+
+		mKilledEntities.push_back (iter->first);
+	}
+}
+
+void ModelBase::UnregisterEntity (const unsigned int id) {
+	std::map<unsigned int, EntityBase*>::iterator iter = mEntities.find (id);
+
+	if (iter == mEntities.end ()) {
+		LogError ("Could not unregister Entity with id '%d': Entity not found!", id);
+		assert (0);
+		return;
+	} else {
+		EntityBase *entity = iter->second;
+		if (entity->mPhysicState) {
+			mPhysics->UnregisterEntity (id);
+			entity->mPhysicState = NULL;
+		}
+
+		delete entity;
+
+		mEntities.erase (iter);
+	}
+}
+
+EntityBase* ModelBase::GetEntity (const unsigned int id) {
+	std::map<unsigned int, EntityBase*>::iterator iter = mEntities.find (id);
+
+	if (iter != mEntities.end ()) {
+		return iter->second;
+	}
+
+	return NULL;
+}
+
+unsigned int ModelBase::CreateEntityId () {
+	return ++mEntityIdCounter;
+}
+
+void ModelBase::ClearEntities () {
+	LogDebug ("Clearing all %d entities.", mEntities.size());
+
+	std::map<unsigned int, EntityBase*>::iterator iter = mEntities.begin ();
+	std::map<unsigned int, EntityBase*>::iterator next = iter;
+	
+	// Since DestroyEntity () also erases the entry in mEntities iter gets
+	// invalid. Therefore we have to store the iterator that follows iter
+	while (iter != mEntities.end ()) {
+		next = iter;
+		next ++;
+		DestroyEntity (iter->first);
+		iter = next;
+	}
+
+	mEntityIdCounter = 0;
+}
+
+unsigned int ModelBase::GetPlayerEntityId () {
+	return mPlayerEntityId;
+}
+
+/**
+ * \param collision_time The time when the collision occured relative to the start of the simulation frame 
+ */
+void ModelBase::SendEntityCollisionEvent (const unsigned int reference_entity_id,
+		const unsigned int incidence_entity_id, float collision_time, vector3d normal) {
+	// Check whether we report the same contact over and over
+	static unsigned int last_reference_entity_id = 0;
+	static unsigned int last_incidence_entity_id = 0;
+	static float last_collision_time = -1.;
+
+	if (!reference_entity_id || !incidence_entity_id)
+		return;
+
+	if (last_reference_entity_id != 0) {
+		if (last_reference_entity_id == reference_entity_id
+				&& last_incidence_entity_id == incidence_entity_id
+				&& last_collision_time == collision_time) {
+			return;
+		}
+	}
+
+	// update the last_* entries
+	last_reference_entity_id = reference_entity_id;
+	last_incidence_entity_id = incidence_entity_id;
+	last_collision_time = collision_time;
+
+	// now we need to get the Entities and check whether we should
+	// call EntityBase::CollisionEvent()
+	EntityBase* reference_entity = GetEntity (reference_entity_id);	
+	EntityBase* incidence_entity = GetEntity (incidence_entity_id);	
+
+	LogDebug ("Received collision type ref = %d type inc = %d",
+			reference_entity->mType,
+			incidence_entity->mType);
+
+	// If the incidence entity accepted the collision we can return, otherwise
+	// we perform the symmetric collision event.
+	if (incidence_entity->CollisionEvent (reference_entity))
+		return;
+
+	reference_entity->CollisionEvent (incidence_entity);
+}
+
+/*
+ * Global functions
+ */
+unsigned int GetPlayerEntityId () {
+	if (!ModelInstance) {
+		LogError ("Couldn't create Entity: Model not initialized!");
+		assert (0);
+	}
+
+	return ModelInstance->GetPlayerEntityId ();
+}
+
+float GetFrameDuration () {
+	if (!ModelInstance) {
+		LogError ("Couldn't create Entity: Model not initialized!");
+		assert (0);
+	}
+
+	return ModelInstance->GetFrameDuration ();
+}
+
+EntityBase * CreateEntity (int type) {
+	if (!ModelInstance) {
+		LogError ("Couldn't create Entity: Model not initialized!");
+		assert (0);
+	}
+
+	EntityBase *result = ModelInstance->CreateEntity (type);
+
+	return result;
+}
+
+void DestroyEntity (unsigned int id) {
+	if (!ModelInstance) {
+		LogError ("Couldn't destroy Entity: Model not initialized!");
+		assert (0);
+	}
+
+	ModelInstance->UnregisterEntity (id);
+}
+
+void KillEntity (unsigned int id) {
+	if (!ModelInstance) {
+		LogError ("Couldn't kill Entity: Model not initialized!");
+		assert (0);
+	}
+
+	ModelInstance->KillEntity (id);
+}
+
+EntityBase * GetEntity (unsigned int id) {
+	if (!ModelInstance) {
+		LogError ("Couldn't execute GetEntity(): Model not initialized!");
+		assert (0);
+	}
+
+	return ModelInstance->GetEntity (id);
+}
+
+EntityPhysicState * GetEntityPhysicState (unsigned int id) {
+	EntityBase *entity = GetEntity (id);
+
+	if (entity)
+		return entity->mPhysicState;
+
+	return NULL;
+}
+
+}
+
+

engine/ModelBase.h

@@ -0,0 +1,140 @@
+#ifndef _MODELBASE_H
+#define _MODELBASE_H
+
+#include "Engine.h"
+#include "EntityBase.h"
+
+namespace Engine {
+
+class Module;
+class PhysicsBase;
+class Events;
+class EntityFactoryBase;
+
+struct EntityBase;
+
+/** \brief Represents the current state of the Engine
+ *
+ * Represents the State of the Engine and is unaware of anything except itself.
+ * It manages all Entities, Physics, etc.
+ *
+ *	It has the following subsystems:
+ *	- Events
+ *	- Physics
+ *	- Variables
+ *
+ * \note
+ * To create an Entity one must call Engine::CreateEntity() which will
+ * allocate the Entity and performs all the required registrations by calling
+ * Model::RegisterEntity().
+ */
+class ModelBase : public Module {
+	public:
+		/** Performs simulation, gamelogic, etc */
+		virtual void Process ();
+		/** Updates the timer */
+		void UpdateTimer () {
+			static float last_frame = 0;
+			float current_frame = static_cast<float> (SDL_GetTicks ()) * 1.0e-3;
+			mDeltaSec = current_frame - last_frame;
+			last_frame = current_frame;
+		}
+		float GetFrameDuration () {
+			return mDeltaSec;
+		}
+	
+		/** Adds the given Entity to the Model */
+		void RegisterEntity (EntityBase *entity);
+		/** Removes the Entity with the given id */
+		void UnregisterEntity (const unsigned int id);
+		/** Marks an Engine::Entity as killed so that it gets removed after the
+		 * simulation */
+		void KillEntity (const unsigned int id);
+
+		/** Creates an Entity of the given type
+		 *
+		 * This calls the CreateEntity() function on the Model::mEntityFactory to
+		 * create the proper Entity and registers it to the required submodules
+		 * (so far only Model::mPhysics).
+		 */
+		EntityBase* CreateEntity (int type);
+		/** Returns the Entity with the given id */
+		EntityBase* GetEntity (const unsigned int id);
+		/** Returns a unused id for an Entity */
+		unsigned int CreateEntityId ();
+		/** Removes all Entities */
+		void ClearEntities ();
+		
+		/** Returns the id of the entity the player is currently controlling */
+		unsigned int GetPlayerEntityId ();
+
+		/** Notifies the gamelogic of a collision event */
+		void SendEntityCollisionEvent (const unsigned int reference_entity_id,
+				const unsigned int incidence_entity_id, float collision_time, vector3d normal);
+
+	protected:
+		/** \brief Initializes the system */
+		virtual int OnInit (int argc, char* argv[]);
+		/** \brief Destroys the system (must be called!) */
+		virtual void OnDestroy ();
+
+		/** \brief Gets called when an entity of the given type is being created */
+		virtual void OnCreateEntity (const int type, const unsigned int id) {};
+		/** \brief Gets called when an entity is marked to be killed */
+		virtual void OnKillEntity (const EntityBase *entity) {};
+
+
+		PhysicsBase *mPhysics;
+		Events *mEvents;
+
+		/** \brief Creates Entities */
+		EntityFactoryBase *mEntityFactory;
+
+		/** \brief contains all Engine::Entities */
+		std::map<unsigned int, EntityBase *> mEntities;
+		/** \brief contains all Engine::Entities that ceased to exist */
+		std::vector<unsigned int> mKilledEntities;
+
+		unsigned int mEntityIdCounter;
+		unsigned int mPlayerEntityId;
+
+		float mDeltaSec;
+
+	friend class ViewBase;
+	friend class Engine;
+	friend class Controller;
+};
+
+/** \brief Creates an Entity of the given type and registers at the required modules *
+ *
+ * It allocates the memory needed to represent that specific type of Entity.
+ * At also performs the required registrations at the various Modules.
+ *
+ * All Entities that are created with this function get also destroyed in
+ * Model::Destroy () by calling DestroyEntity () for this Entity.
+ *
+ * \note All Entities must be created with this function if you intend to keep
+ * the different Modules in sync!
+ */
+EntityBase * CreateEntity (int type);
+
+/** \brief Frees the Memory required by the Entity and unregisters it 
+ *
+ * This function also frees the memory the Entity is using in its
+ * different representitions such as EntityVisualState and EntityPhysicState.
+ *
+ * It also unregisters the Entity from the different Modules where it was
+ * registered by CreateEntity.
+ */
+void DestroyEntity (unsigned int id);
+/** \brief Tells the model that the entity is no more existant in the game
+ * world */
+void KillEntity (unsigned int id);
+/** \brief Returns the Entity with the given id, NULL otherwise */
+EntityBase * GetEntity (unsigned int id);
+/** \brief Returns the physical state of the Entity with the given id, NULL otherwise */
+EntityPhysicState * GetEntityPhysicState (unsigned int id);
+
+}
+
+#endif // _MODEL_H

engine/ModelBaseGlobal.h

@@ -0,0 +1,15 @@
+#ifndef _MODELGLOBAL_H
+#define _MODELGLOBAL_H
+
+namespace Engine {
+
+/** \brief Adds the function callback as command for the given name*/
+unsigned int GetPlayerEntityId ();
+
+/** \brief Returns the duration of the frame in seconds */
+float GetFrameDuration ();
+
+}
+
+#endif /* _MODELGLOBAL_H */
+

engine/Module.h

@@ -0,0 +1,51 @@
+#ifndef MODULE_H
+#define MODULE_H
+
+namespace Engine {
+
+/** \brief Base class for the separate modules
+ *
+ * All Modules that are managed by the Engine::Engine base Module. Everything
+ * else is a Submodule of that or a Submodule of a Submodule.
+ */
+class Module { 
+	public:
+		/** \brief Initializes the Module
+		 * 
+		 * \note This function must only return if it was able to initialize
+		 * successfully, otherwise it should log an error with LogError and exit
+		 * the program itself!
+		 *
+		 * In general at first the Submodules get initialized and then the Module
+		 * that has pointers to the Submodules. Exception: The main Module
+		 * Engine::Engine.
+		 *
+		 * \note
+		 * The function Engine::OnInit () performs the allocation
+		 * and Initialization of all its Submodules.
+		 */
+		virtual int Init (int argc, char* argv[]) { return OnInit (argc, argv); }
+		/** \brief Frees the used memory of the Module
+		 *
+		 * The Destroy function is always called at first for the Module itself
+		 * and then for its submodules so that a Module is still completely
+		 * working. Again for the main Module Engine::Engine the reverse is the
+		 * case (such as in Module::Init).
+		 */
+		virtual void Destroy () { OnDestroy (); }
+		/** \brief Calls the function that registers its commands to the
+		 * Commandsystem */
+		virtual void RegisterCommands () { OnRegisterCommands (); }
+
+	protected:
+		/** \brief The actual function being called when Init () is called */
+		virtual int OnInit (int argc, char* argv[]) = 0;
+		/** \brief Frees the memory */
+		virtual void OnDestroy () { };
+		/** \brief Registers the commands of the Module */
+		virtual void OnRegisterCommands () { };
+};
+
+}
+
+#endif /* MODULE_H */

engine/OverlayBase.h

@@ -0,0 +1,25 @@
+#ifndef OVERLAY
+#define OVERLAY
+
+#include <SDL/SDL.h>
+
+namespace Engine {
+
+class OverlayBase {
+	public:
+		OverlayBase () {};
+		virtual ~OverlayBase() {};
+
+		virtual bool OnKeyDown (const SDL_keysym &keysym) { return false; };
+		virtual bool OnKeyUp (const SDL_keysym &keysym) { return false; };
+		virtual bool OnMouseButtonUp (Uint8 button, Uint16 xpos, Uint16 ypos) { return false; };
+		virtual bool OnMouseButtonDown (Uint8 button, Uint16 xpos, Uint16 ypos) { return false; };
+
+		virtual void Draw () = 0;
+
+		void _strange_function_for_vtable () {};
+};
+
+}
+
+#endif /* OVERLAY */

engine/PhysicsBase.cc

@@ -0,0 +1,604 @@
+#include "PhysicsBase.h"
+#include "EntityBase.h"
+
+// needed for GetEntityGameState() in ProcessCollisionEvent()
+#include "ModelBase.h"
+
+#include "coll2d.h"
+
+#define EPSILON 1.0e-4
+
+namespace Engine {
+
+/*
+ * Inherited Module functions
+ */
+int PhysicsBase::OnInit (int argc, char* argv[]) {
+	LogDebug ("Physics Init");
+	mEntities.clear ();
+
+	return 0;
+}
+
+void PhysicsBase::OnDestroy () {
+	LogDebug ("Physics Destroy");
+}
+
+/*
+ * Module specific functions
+ */
+
+void PhysicsBase::Move (float delta_msec) {
+	EntityPhysicState* entity = NULL;
+	std::map<unsigned int, EntityPhysicState*>::iterator entity_iter;
+	std::map<unsigned int, EntityPhysicState*>::iterator collision_iter;
+	vector3d velocity, orientation;
+
+	for (entity_iter = mEntities.begin (); entity_iter != mEntities.end(); entity_iter++){
+		entity = entity_iter->second;
+		velocity = entity->GetVelocity ();
+
+		if (velocity.length2() == 0.)
+				continue;
+
+		CheckContactCache (entity);
+
+		entity->SetPosition (entity->GetPosition () + velocity * delta_msec);
+		entity->SetOrientation (vector3d(0., entity->GetOrientation()[1] + entity->GetAngleVelocity() * delta_msec, 0.));
+	}
+}
+
+int PhysicsBase::Simulate (float msec, ModelBase* model) {
+	vector3d velocity, orientation;
+
+	unsigned int entity_a_id, entity_b_id;
+	int resolve_steps = 0;;
+	float current_time = 0, stepsize = msec / (float) 10;
+
+	while (current_time < msec) {
+		if (msec - current_time < stepsize) 
+			stepsize = msec - current_time;
+
+		coll2d::CollisionInfo info;
+		bool collision_result = false;
+
+		collision_result = CalcNextCollision (stepsize, entity_a_id, entity_b_id, info);
+
+		if (collision_result == 0) {
+			// there is no collision, so we integrate to the end of
+			// the timestep
+			current_time += stepsize;
+			Move (stepsize);
+		} else {
+			LogDebug ("Collision between %u and %u", entity_a_id, entity_b_id);
+			float collision_remaining_step = stepsize;
+			resolve_steps = 0;
+
+			// This is the collision loop. It loops until there is no collision any
+			// more within the stepsize.
+			while (collision_remaining_step > 0.) {
+				// with this we count how often we iterate through and can
+				// detect certain false behaviour
+				resolve_steps ++;
+
+				// info.time tells us in what time the contact will happen and
+				// theoretically we can move to that point, however due to round-off
+				// errors we might end up in a situation where the Entities overlap
+				// which we must prevent to keep the collision detection working.
+				// 
+				// Therefore we only move to a portion of the time and resolve the
+				// collision then. This alpha variable controls how much of the time
+				// we skip.
+				float alpha = 0.001; 
+
+				// If the timestep is already very small, we try to resolve it
+				// immediately.
+				if (info.time < EPSILON ) {
+					// if the timestep is too small we simply resolve the collision and 
+					// do not move beforehang
+					LogDebug ("Time step too small ==> Resolving Step immediately");
+					ResolveCollision (0., entity_a_id, entity_b_id, info);
+					// Send the collision event to the Model (if we have one)
+					if (model) {
+						model->SendEntityCollisionEvent (entity_a_id, entity_b_id, info.time, info.normal);
+					}
+					//	collision_remaining_step -= 1.0e-4;
+				} else {
+					Move (info.time * (1 - alpha));
+					LogDebug ("Resolving Step between %u and %u t = %f alpha = %f", entity_a_id, entity_b_id, info.time, alpha);
+					ResolveCollision (info.time * (1 - alpha), entity_a_id, entity_b_id, info);	
+					// Send the collision event to the Model (if we have one)
+					if (model) {
+						model->SendEntityCollisionEvent (entity_a_id, entity_b_id, info.time, info.normal);
+					}
+					collision_remaining_step -= info.time * (1 - alpha);
+				}
+
+				// At this point we resolved the collision we had found. Now we need
+				// to check whether there is a new one
+				collision_result = CalcNextCollision (collision_remaining_step, entity_a_id, entity_b_id, info);
+
+				// If there was none, we happily move on to the end of the frame and
+				// set collision_remaining_step to 0 so that we jump out of the
+				// collision loop.
+				if (!collision_result) {
+					Move (collision_remaining_step);
+					collision_remaining_step = 0.;
+					break;
+				}
+
+				assert (resolve_steps <= 50);
+			}
+		} 
+	}
+	/* Postcondition: we simulated exactly msec milliseconds, no less, no more! */
+	assert (current_time == msec);
+
+	return 0;
+}
+
+void PhysicsBase::RegisterEntity (EntityPhysicState* entity) {
+	unsigned int id = entity->mId;
+	LogDebug ("Registering EntityPhysicState with id '%d'", id);
+	if (mEntities.find (id) == mEntities.end ())
+		mEntities[id] = entity;
+	else {
+		LogError ("Physics already has registered an Entity with id '%d'", id);
+		assert (0);
+	}
+}
+
+void PhysicsBase::UnregisterEntity (const unsigned int id) {
+	std::map<unsigned int, EntityPhysicState*>::iterator iter = mEntities.find(id);
+	LogDebug ("Unegistering EntityPhysicState with id '%d'", id);
+
+	if (iter != mEntities.end ()) {
+		// Remove all the references of existing contacts to the Entity that is
+		// going to be deleted.
+		std::map<unsigned int, vector3d>::iterator temp_iter, contact_iter = iter->second->mContactNormals.begin();
+
+		while (contact_iter != iter->second->mContactNormals.end()) {
+			temp_iter = contact_iter;
+			contact_iter ++;
+
+			ContactCacheRemove (id, temp_iter->first);
+		}
+
+		// Remove the Entity from mEntities and erase the Entity
+		EntityPhysicState* entity_physic_state = iter->second;
+		mEntities.erase (iter);
+
+		// We also have to delete the state!
+		if (entity_physic_state->mShape)
+			delete entity_physic_state->mShape;
+
+		delete entity_physic_state;
+	} else {
+		LogError ("Could not unegister EntityPhysicState with id '%d': Entity not found!", id);
+		assert (0);
+	}
+}
+
+/**
+ * This function also sorts out collisions that might be invalid such as
+ * Particle-Particle collision and the like.
+ */
+inline bool PhysicsBase::CheckPossibleCollisionPair (EntityPhysicState* entity_a, EntityPhysicState* entity_b) {
+	// no collision checks against itself
+	if (entity_a == entity_b)
+		return false;
+
+	// no checks if both are static
+	if (entity_a->mStatic && entity_a->mStatic)
+		return false;
+
+	// no checks if both are particles
+	if (entity_a->mBaseType == EntityBaseTypeParticle 
+			&& entity_b->mBaseType == EntityBaseTypeParticle)
+		return false;
+
+	// no checks if both are particles
+	if (entity_a->mBaseType == EntityBaseTypeBlock
+			&& entity_b->mBaseType == EntityBaseTypeBlock)
+		return false;
+
+	return true;
+}
+
+/**
+ * \param stepsize  The timestep for which we want to check whether a
+ *                  collision occurs.
+ * \param reference_entity_id If a collision occurs the Id of the entity that
+ * 	is the reference entity is stored in this variable.
+ * \param incidence_entity_id If a collision occurs the Id of the entity that
+ * 	crashes into the reference entity is stored in this variable.
+ * \param info Contains information about the collision (normal, time, point)
+ *
+ * This function calls PhysicsBase::CheckPossibleCollisionPair() to sort out
+ * invalid collision pairs.
+ */
+bool PhysicsBase::CalcNextCollision (
+		float stepsize,
+		unsigned int &reference_entity_id,
+		unsigned int &incidence_entity_id,
+		coll2d::CollisionInfo &info) {
+	std::map<unsigned int, EntityPhysicState*>::iterator collision_iter;
+	std::map<unsigned int, EntityPhysicState*>::iterator collision_ref;
+
+	// We have to find the next collision, so we check everything and
+	// take the first one that will happen.
+	coll2d::CollisionInfo temp_info;
+	info.time = 2.;
+
+	for (collision_ref = mEntities.begin (); collision_ref != mEntities.end (); collision_ref ++) {
+		if (collision_ref->second->mId != 0) {
+			collision_ref->second->UpdateShape();
+		}
+	}
+
+	for (collision_ref = mEntities.begin (); collision_ref != mEntities.end (); collision_ref ++) {
+		if (collision_ref->second->mAlive == false)
+			continue;
+		for (collision_iter = collision_ref; collision_iter != mEntities.end (); collision_iter ++) {
+			if (collision_iter->second->mAlive == false)
+				continue;
+
+			if (!CheckPossibleCollisionPair(collision_ref->second, collision_iter->second))
+				continue;
+
+			EntityPhysicState *entity_a, *entity_b;
+			entity_a = collision_ref->second;
+			entity_b = collision_iter->second;
+
+			int coll2d_result = coll2d::check_collision (stepsize, entity_a->mShape, entity_b->mShape, &temp_info);
+
+			if (!HandleColl2dError (coll2d_result, stepsize, entity_a, entity_b, temp_info)) {
+				LogError ("Could not handle coll2d error: %d\n", coll2d_result);
+				assert (0);
+			}
+
+			if (coll2d_result > 0 && temp_info.time < info.time ) {
+				info = temp_info;
+
+				assert (info.reference_shape >= 0);
+				if (info.reference_shape == 0) {
+					reference_entity_id = collision_ref->first;
+					incidence_entity_id = collision_iter->first;
+				} else {
+					reference_entity_id = collision_iter->first;
+					incidence_entity_id = collision_ref->first;
+					//assert (0);
+				}
+			}
+		}
+	}
+	if (info.time != 2.)
+		return true;
+
+	return false;
+}
+
+/**
+ * This function updates the velocity of the Entity with id of
+ * incidence_entity_id so that it no more is in collision with with Entity
+ * with id reference_entity_id. Additionally to that we also cache the
+ * contact normals and check against them so that the new velocity does not
+ * violate previous contacts.
+ *
+ * We store the cached contact normals both in the incidence and the reference
+ * entity and we have to make sure that these references get cleared once one
+ * of the two get deleted! This is done in PhysicsBase::UnregisterEntity().
+ */
+void PhysicsBase::ResolveCollision (float stepsize, unsigned int reference_entity_id, unsigned int incidence_entity_id, coll2d::CollisionInfo &info) {
+	EntityPhysicState* reference_entity = mEntities[reference_entity_id];
+	EntityPhysicState* incidence_entity = mEntities[incidence_entity_id];
+
+	if (!reference_entity || !incidence_entity) {
+		LogError ("Invalid entity IDs passed to %s: %u and %u", __FUNCTION__, reference_entity_id, incidence_entity_id);
+	}
+	assert (reference_entity && incidence_entity);
+
+	// So far only resolving of collision of sphere collisions is
+	// allowed
+	assert (dynamic_cast<coll2d::Sphere*> (incidence_entity->mShape));
+
+	// First we calculate the velocity along the normal and then we calculate
+	// the velocity that is tangential to the plane and set the new velocity to
+	// it.
+	vector3d new_velocity = incidence_entity->mVelocity;
+	new_velocity -= reference_entity->mVelocity;
+
+	// It should be greater zero otherwise there was an error in the collision
+	// detection.
+	assert (new_velocity.length2 ());
+
+	// The scalar proj tells us how far we went along the normal
+	float proj = new_velocity * info.normal;
+	// As there is a collision, and the incidence_entity is moving towards the
+	// plane, this value must be strictly smaller than zero, otherwise we would
+	// not penetrate the plane.
+	if (proj > 0.) {
+		LogError ("Projection invalid: %e", proj);
+		info.doPrint ("Collision Info:\n");
+	}
+	assert (proj < 0.);
+
+	// Collision handling start:
+	// This is the code that tells us how we deal with collisions and how to
+	// prevent them. To get real dynamics one has to adjust this section:
+	vector3d old_velocity = incidence_entity->mVelocity;
+	new_velocity = old_velocity + info.normal * proj * (-1.0);
+	incidence_entity->SetVelocity (new_velocity);
+	// Collision handling end
+
+	// And we also add the normal to the cached contacts for both incidence
+	// and reference entity
+	ContactCacheAdd (incidence_entity, reference_entity, info.normal);	
+
+	// Now we check whether we are violating any of the cached contacts. For
+	// this we loop through all contacts and try to adjust the velocity of
+	// incidence_entity until we no more violate the cached contacts.
+	std::map<unsigned int, vector3d>::iterator iter = incidence_entity->mContactNormals.begin();
+	int readjust = 0;
+	while (iter != incidence_entity->mContactNormals.end()) {
+		vector3d contact_normal = iter->second;
+		float contact_velocity = new_velocity * contact_normal;
+
+		if (contact_velocity < 0.) {
+			if (reference_entity_id == iter->first) {
+				// In this case, the projection was not good enough. We simultaneously
+				// damp the velocity and push a little harder. If it was damped too
+				// much or we had to readjust too often, we set the velocity to zero.
+				LogDebug ("Resolved collision needs to be readjusted");
+				new_velocity = incidence_entity->GetVelocity();
+				new_velocity *= 0.5;
+				if (new_velocity.length2() < EPSILON)
+					new_velocity.setValues (0., 0., 0.);
+				else 
+					new_velocity += info.normal * 0.001;
+				incidence_entity->SetVelocity (new_velocity);
+				readjust++;
+
+				// More than 10 readjusts? -> set velocity to zero
+				if (readjust > 10)
+					new_velocity.setValues (0., 0., 0.);
+				
+				// and we redo all the checking:
+				iter = incidence_entity->mContactNormals.begin();
+				continue;
+			}
+
+			// In this case the proposed velocity is violating another contact
+			// and we set the velocity to zero.
+			LogDebug ("Cached collision: %e -> resetting velocity", contact_velocity);
+//			contact_normal.print ("contact normal: ");
+			new_velocity.setValues (0., 0., 0.);
+			incidence_entity->mVelocity = new_velocity;
+		} else if (contact_velocity > 0.01) {
+			// If we move sufficiently fast away from a contact we remove the
+			// contact from the cache.
+			
+			// * Attention! * As the function ContactCacheRemove() deletes an entry
+			// of mContactNormals we have to increase the iterator *before* we
+			// remove the cache. Otherwise the iterator might become invalid!
+			unsigned int contact_id = iter->first;
+			iter++;
+
+			ContactCacheRemove (contact_id, incidence_entity_id);
+
+			continue;
+		}
+		iter++;
+	}
+}
+
+/*
+ * Contact Cache Functions
+ */
+void PhysicsBase::ContactCacheAdd (EntityPhysicState* incidence_entity, EntityPhysicState* reference_entity, vector3d normal) {
+	incidence_entity->mContactNormals[reference_entity->mId] = normal;
+	reference_entity->mContactNormals[incidence_entity->mId] = normal * -1.;
+
+	LogDebug ("Adding normal (%f,%f,%f) id=%d to entity %d",
+			normal[0], normal[1], normal[2], 
+			reference_entity->mId, incidence_entity->mId);
+	LogDebug ("Adding normal (%f,%f,%f) id=%d to entity %d",
+			normal[0] * -1., normal[1] * -1., normal[2] * -1., 
+			incidence_entity->mId, reference_entity->mId);
+}
+
+void PhysicsBase::ContactCacheRemove (unsigned int entity_a_id, unsigned int entity_b_id) {
+	assert (entity_a_id != entity_b_id);
+
+//	LogDebug ("Removing start %d and %d", entity_a_id, entity_b_id);
+
+	EntityPhysicState *entity_a, *entity_b;
+
+#ifdef WIN32
+	entity_a = mEntities[entity_a_id];
+	entity_b = mEntities[entity_b_id];
+#else
+	entity_a = mEntities.at(entity_a_id);
+	entity_b = mEntities.at(entity_b_id);
+#endif
+
+	// Check the entries exist
+	assert (entity_a->mContactNormals.find (entity_b_id) != entity_a->mContactNormals.end());
+	assert (entity_b->mContactNormals.find (entity_a_id) != entity_b->mContactNormals.end());
+
+#ifdef WIN32
+	vector3d contact_normal = entity_a->mContactNormals[entity_b_id];
+#else
+	vector3d contact_normal = entity_a->mContactNormals.at(entity_b_id);
+#endif
+
+	LogDebug ("Removing normal (%f,%f,%f) id=%d from entity %d",
+			contact_normal[0], contact_normal[1], contact_normal[2],
+			entity_a_id, entity_b_id);
+	entity_a->mContactNormals.erase (entity_a->mContactNormals.find(entity_b_id));
+
+#ifdef WIN32
+	contact_normal = entity_b->mContactNormals[entity_a_id];
+#else
+	contact_normal = entity_b->mContactNormals.at(entity_a_id);
+#endif
+	
+	LogDebug ("Removing normal (%f,%f,%f) id=%d from entity %d",
+			contact_normal[0], contact_normal[1], contact_normal[2],
+			entity_b_id, entity_a_id);
+	entity_b->mContactNormals.erase (entity_b->mContactNormals.find(entity_a_id));
+
+//	LogDebug ("Removing done!");
+}
+
+/** \brief Checks whether we are still in contact with the entities stored in mContactNormals
+ *
+ * To check whether we still are in contact, we modify temporarily the
+ * velocity of the given Entity that it moves towards the contact point (i.e.
+ * we add the negative normal to the velocity) and re-check for a collision.
+ * If the collision has a time value of 0.0 and the reported normal stays the
+ * same, we know, that the two Entities are still in contact. If not, we lost
+ * contact.
+ *
+ * We can skip the test, if the scalar product of the normal and velocity are
+ * positive (in this case we move away from the plane)
+ */
+void PhysicsBase::CheckContactCache (EntityPhysicState* entity) {
+	std::map<unsigned int, vector3d>::iterator contacts_iter, current_iter;
+
+	contacts_iter = entity->mContactNormals.begin();
+	while (contacts_iter != entity->mContactNormals.end()) {
+		// * Attention! *
+		// current_iter can be used throughout this environment and contacts_iter
+		// can already now be increased as it *must not* be used! This is due to
+		// the nature of ContactCachRemove() which might make contacts_iter
+		// invalid if we were using that.
+		current_iter = contacts_iter;
+		contacts_iter ++;
+
+		unsigned int contact_entity_id = contacts_iter->first;
+
+#ifdef WIN32
+		EntityPhysicState* contact_entity = mEntities[contact_entity_id];
+#else
+		EntityPhysicState* contact_entity = mEntities.at (contact_entity_id);
+#endif
+	
+		vector3d normal = contacts_iter->second;
+		vector3d old_velocity = entity->GetVelocity();
+
+		// If we already move away from the normal, we delete the contact.
+		if (normal * old_velocity > 0.01) {
+			LogDebug ("Lost Contact with entity %d!", current_iter->first);
+			ContactCacheRemove (entity->mId, current_iter->first);
+			continue;
+		} else {
+			vector3d new_velocity (old_velocity);
+			new_velocity -= normal;
+			entity->SetVelocity (new_velocity);
+
+			entity->UpdateShape();
+			contact_entity->UpdateShape();
+
+			coll2d::CollisionInfo info;
+			int coll2d_result;
+
+			coll2d_result = coll2d::check_collision (1.0, entity->mShape, contact_entity->mShape, &info);
+
+			if (!HandleColl2dError (coll2d_result, 1.0, entity, contact_entity, info)) {
+				// error
+				LogError ("Error when performing collision check: %s\n", __FUNCTION__);
+				assert (0);
+			}
+			
+			if (coll2d_result == 0) {
+				// no contact, so delete it:
+				LogDebug ("Lost Contact with entity %d!", current_iter->first);
+				ContactCacheRemove (entity->mId, current_iter->first);
+	
+				entity->SetVelocity (old_velocity);
+				continue;
+			} else if ( coll2d_result > 0){
+				// contact
+				if (info.time != 0. || normal != info.normal) {
+					LogError ("Something strange happened when checking for contacts in %s\n", __FUNCTION__);
+					assert (0);
+				}
+			}
+
+			entity->SetVelocity (old_velocity);
+		}
+	}
+}
+
+/**
+ * So far we ignore overlapping if one entity is an EntityBaseTypeActor and
+ * the other a EntityBaseTypeParticle.
+ *
+ * If this function returns true everything is ok and we can safely continue
+ * otherwise it is recommended to quit the application.
+ *
+ * \returns true if there was no error at all or we were able to deal with it
+ */
+bool PhysicsBase::HandleColl2dError (int coll2d_result, float stepsize,
+		EntityPhysicState* entity_a, EntityPhysicState* entity_b, coll2d::CollisionInfo &info)
+{
+	if (coll2d_result < 0) {
+		if (coll2d_result == CHECK_ERROR_OVERLAP) {
+			// this can happen if an Actor is faster than its thrown Particle,
+			// we ignore this for now
+			/// \todo Handle overlaps of Actors and Particles better or define clear guidelines. Note this also in Entity.h
+			if ( (entity_a->mBaseType == EntityBaseTypeParticle && entity_b->mBaseType == EntityBaseTypeActor) 
+					|| (entity_b->mBaseType == EntityBaseTypeParticle && entity_a->mBaseType == EntityBaseTypeActor) )
+				LogDebug ("Ignoring CHECK_ERROR_OVERLAP");
+			return true;
+		} else {
+			LogError ("coll2d Error: %d (stepsize = %f, id_a = %d, id_b = %d)", coll2d_result, stepsize, entity_a->mId, entity_b->mId);
+			entity_a->mShape->doPrint ("Debug: entity_a");
+			entity_b->mShape->doPrint ("Debug: entity_b");
+			return false;
+		}
+	}
+
+	return true;
+}
+
+EntityPhysicState* CreateEntityPhysicState (EntityBaseType type, unsigned int id) {
+	EntityPhysicState* entity_physics = new EntityPhysicState ();
+	if (!entity_physics) {
+		LogError ("Could not allocate enough memory for EntityPhysicState of type '%d'", type);
+		assert (0);
+	}
+	// default values for all Entities
+	entity_physics->mId = id;
+	entity_physics->mBaseType = type;
+
+  // specific values for each Entity type
+	if (type == EntityBaseTypeNone) {
+		entity_physics->mShape = new coll2d::Sphere (0.01);
+		assert (entity_physics->mShape);
+	} else if (type == EntityBaseTypeActor) {
+		entity_physics->mShape = new coll2d::Sphere (0.4);
+		assert (entity_physics->mShape);
+	} else if (type == EntityBaseTypeBlock) {
+		entity_physics->mShape = new coll2d::Polygon (4);
+		assert (entity_physics->mShape);
+
+		static_cast<coll2d::Polygon*> (entity_physics->mShape)->setVertice (0, vector3d (-0.5, 0., 0.5));
+		static_cast<coll2d::Polygon*> (entity_physics->mShape)->setVertice (1, vector3d (0.5, 0., 0.5));
+		static_cast<coll2d::Polygon*> (entity_physics->mShape)->setVertice (2, vector3d (0.5, 0., -0.5));
+		static_cast<coll2d::Polygon*> (entity_physics->mShape)->setVertice (3, vector3d (-0.5, 0., -0.5));
+	} else if (type == EntityBaseTypeParticle) {
+		entity_physics->mShape = new coll2d::Sphere (0.05);
+		assert (entity_physics->mShape);
+	} else {
+		LogError ("No EntityPhysicState defined for Entity type '%d'", type);
+		assert (0);
+	}
+
+	return entity_physics;
+}
+
+}
+
+

engine/PhysicsBase.h

@@ -0,0 +1,91 @@
+#ifndef _PHYSICSBASE_H
+#define _PHYSICSBASE_H
+
+#include "Engine.h"
+#include "EntityBase.h"
+
+namespace coll2d {
+	struct CollisionInfo;
+}
+
+/// \todo get rid of this forward declaration somehow
+struct vector3d;
+
+namespace Engine {
+
+class Module;
+class Events;
+
+class EntityPhysicState;
+
+/** \brief Performs the physical simulation of all Entities
+ *
+ * This class defines how the physical simulation is performed. Especially how
+ * collisions are treated is defined in the function
+ * Physics::ResolveCollision() . This function can be modified to simulate
+ * dynamics effects such as friction, bouncing, stacking etc..
+ *
+ * \todo When running along multiple boxes that are perfectly aligned one hangs from time to time at the last box
+ */
+class PhysicsBase : public Module { 
+	public:
+		/** \brief Performs the simulation for the next msec milliseconds
+		 * \param msec The amount of time that is to be simulated
+		 * \param model A pointer to the model that will be used to pass on collision events.*/
+		virtual int Simulate (float msec, ModelBase* model = NULL);
+		/** \brief Registers the physical state of an Entity */
+		virtual void RegisterEntity (EntityPhysicState* entity);
+		/** \brief Unregisters the physical state of an Entity */
+		virtual void UnregisterEntity (const unsigned int id);
+
+	protected:
+		/** \brief Initializes the system */
+		virtual int OnInit (int argc, char* argv[]);
+		/** \brief Destroys the system (must be called!) */
+		virtual void OnDestroy ();
+
+		/** \brief Moves all Entities for delta_msec milliseconds (can be
+		 * negative!) */
+		void Move (float delta_msec);
+
+		/** \brief Checks whether two given Entities can collide */
+		bool CheckPossibleCollisionPair (EntityPhysicState* entity_a, EntityPhysicState* entity_b);
+		/** \brief Calculates the next pair of Entities that will collide */
+		bool CalcNextCollision (float stepsize,
+				unsigned int &reference_entity_id,
+				unsigned int &incidence_entity_id,
+				coll2d::CollisionInfo &info);
+		/** \brief Resolves the collision that CalcNextCollision has found
+		 * It resolves a found collision and prevents interpenetration of cached contacts.
+		 */
+		void ResolveCollision (float stepsize,
+				unsigned int reference_entity_id,
+				unsigned int incidence_entity_id,
+				coll2d::CollisionInfo &info);
+
+		/** \brief Contains all Entities with a physical state */
+		std::map<unsigned int, EntityPhysicState*> mEntities;
+
+	private:
+		 /** \brief Caches the contact information between two entities
+			*/
+		 void ContactCacheAdd (EntityPhysicState* incidence_entity, EntityPhysicState* reference_entity, vector3d normal);
+		 /** \brief Removes the contact cache information of two entities in contact
+			*/
+		 void ContactCacheRemove (unsigned int entity_a_id, unsigned int entity_b_id);
+		 /** \brief Checks whether the entries in the contact cache are still valid
+		  */
+		 void CheckContactCache (EntityPhysicState* entity);
+
+		 /** \brief Allows to ignore certain kinds of errors reported by coll2d
+			*/
+		 bool HandleColl2dError (int coll2d_result, float stepsize,
+		EntityPhysicState* entity_a, EntityPhysicState* entity_b, coll2d::CollisionInfo &info);
+};
+
+/** \brief Creates an EntityPhysicState with all the required information */
+EntityPhysicState* CreateEntityPhysicState (EntityBaseType type, unsigned int id);
+
+}
+
+#endif // _PHYSICSBASE_H

engine/PhysicsEntityBase.cc

@@ -0,0 +1,149 @@
+#include "EntityBase.h"
+
+#include "coll2d.h"
+
+namespace Engine {
+
+/** \brief Copy constructor */
+inline EntityPhysicState::EntityPhysicState (const EntityPhysicState& state):
+	mId (state.mId),
+	mBaseType (state.mBaseType),
+	mPosition (state.mPosition),
+	mOrientation (state.mOrientation),
+	mVelocity (state.mVelocity),
+	mAngleVelocity (state.mAngleVelocity),
+	mStatic (state.mStatic),
+	mAlive (state.mAlive),
+	mContactNormals(state.mContactNormals)
+{
+	mShape = state.mShape->getCopy();
+};
+
+/** \brief Assignment operator */
+inline EntityPhysicState& EntityPhysicState::operator= (const EntityPhysicState& state) {
+	if (this != &state) {
+		mId = state.mId;
+		mBaseType = state.mBaseType;
+		mPosition = state.mPosition;
+		mOrientation = state.mOrientation;
+		mVelocity = state.mVelocity;
+		mAngleVelocity = state.mAngleVelocity;
+		mShape = state.mShape->getCopy();
+		mStatic = state.mStatic;
+		mAlive = state.mAlive;
+		mContactNormals = state.mContactNormals;
+	}
+
+	return *this;
+}
+
+vector3d& EntityPhysicState::GetPosition () {
+	return mPosition;
+}
+
+vector3d& EntityPhysicState::GetVelocity () {
+	return mVelocity;
+}
+
+vector3d& EntityPhysicState::GetOrientation () {
+	return mOrientation;
+}
+
+float& EntityPhysicState::GetAngleVelocity () {
+	return mAngleVelocity;
+}
+
+void EntityPhysicState::SetPosition (const vector3d &position) {
+	mPosition = position;
+}
+
+void EntityPhysicState::SetVelocity (const vector3d &velocity) {
+	mVelocity = velocity;
+}
+
+void EntityPhysicState::SetOrientation (const vector3d &orientation) {
+	mOrientation = orientation;
+}
+
+void EntityPhysicState::SetAngleVelocity (const float &angle_velocity) {
+	mAngleVelocity = angle_velocity;
+}
+
+void EntityPhysicState::Globalize (vector3d &vec) {
+	// make a copy of the local coordinates
+	vector3d local (vec);
+
+	// calculate sin and cos for the current rotation
+	float sintheta, costheta;
+	sintheta = sin (- mOrientation[1] * M_PI / 180);
+	costheta = cos (- mOrientation[1] * M_PI / 180);
+
+	// rotation
+	vec[0] = - sintheta * local[2] + costheta * local[0];
+	vec[1] = local[1];
+	vec[2] = costheta * local[2] + sintheta * local[0] ;
+
+	// and translation
+	vec += mPosition;
+}
+
+void EntityPhysicState::Localize (vector3d &vec) {
+	// translation
+	vec -= mPosition;
+
+	vector3d global (vec);
+
+	// calculate sin and cos for the current rotation
+	float sintheta, costheta;
+	sintheta = sin (mOrientation[1] * M_PI / 180);
+	costheta = cos (mOrientation[1] * M_PI / 180);
+
+	// rotation
+	vec[0] = - sintheta * global[2] + costheta * global[0];
+	vec[1] = global[1];
+	vec[2] = costheta * global[2] + sintheta * global[0] ;
+}
+
+void EntityPhysicState::GlobalizeRotation (vector3d &vec) {
+	// make a copy of the local coordinates
+	vector3d local (vec);
+
+	// calculate sin and cos for the current rotation
+	float sintheta, costheta;
+	sintheta = sin (- mOrientation[1] * M_PI / 180);
+	costheta = cos (- mOrientation[1] * M_PI / 180);
+
+	// rotation
+	vec[0] = - sintheta * local[2] + costheta * local[0];
+	vec[1] = local[1];
+	vec[2] = costheta * local[2] + sintheta * local[0] ;
+}
+
+void EntityPhysicState::LocalizeRotation (vector3d &vec) {
+	vector3d global (vec);
+
+	// calculate sin and cos for the current rotation
+	float sintheta, costheta;
+	sintheta = sin (mOrientation[1] * M_PI / 180);
+	costheta = cos (mOrientation[1] * M_PI / 180);
+
+	// rotation
+	vec[0] = - sintheta * global[2] + costheta * global[0];
+	vec[1] = global[1];
+	vec[2] = costheta * global[2] + sintheta * global[0] ;
+}
+
+
+void EntityPhysicState::UpdateShape () {
+	assert (mShape);
+
+	mShape->setPosition (mPosition);
+	mShape->setAngle (mOrientation[1] * M_PI / 180);
+
+	mShape->setVelocity (mVelocity);
+	mShape->setAngleVelocity (mAngleVelocity);
+}
+
+
+}
+

engine/SimpleConsoleOverlay.cc

@@ -0,0 +1,220 @@
+#include "DrawingsGL.h"
+#include "OverlayBase.h"
+#include "SimpleConsoleOverlay.h"
+
+#include "OGLFT.h"
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+namespace Engine {
+
+static Variable Var_ConsoleTransparency ("consoletransparency", "0.2");
+
+bool SimpleConsoleOverlay::OnKeyDown (const SDL_keysym &keysym) {
+	if (keysym.sym == SDLK_F8) {
+		if (mActive) {
+			// We have to call SetActive() to actually
+			// activate the unicode processing of SDL
+			SetActive (false);
+		}
+		else {
+			SetActive (true);
+		}
+
+		return true;
+	}
+
+	if (!mActive)
+		return false;
+
+	// check for input that requires actions
+	switch (keysym.sym) {
+		case SDLK_ESCAPE:
+			SetActive (false);
+			return true;
+			break;
+		case SDLK_BACKSPACE:
+			if (mCurrentInput.size() > 0)
+				mCurrentInput = mCurrentInput.substr (0, mCurrentInput.size() - 1 );
+			return true;
+			break;
+		case SDLK_RETURN:
+			if (mCurrentInput.size() == 0) {
+				mLastLines.push_back ("");
+				return true;
+			}
+
+			mLastLines.push_back (mCurrentInput);
+
+			// run the command and print out the error if there was one
+			if (!RunCommand (mCurrentInput)) {
+				mLastLines.push_back ("Error: " + CommandGetErrorString());
+			}
+			mCurrentInput = "";
+			return true;
+
+			break;
+		default:
+			break;
+	}
+
+	// if we got input of a character that we can write add it to the current
+	// input
+	if (keysym.unicode) {	
+		if ((keysym.unicode & 0xFF80) == 0) {
+			mCurrentInput += keysym.unicode & 0x7F;
+			return true;
+		} else {
+			LogWarning ("Input key not supported!");
+			return false;
+		}
+	}
+
+	return true;
+}
+
+void SimpleConsoleOverlay::Draw () {
+	// we switch to orthographic projection and draw the contents of the 2d 
+	// overlay on top of the previous drawings
+	glMatrixMode (GL_PROJECTION);
+	glPushMatrix ();
+		glLoadIdentity ();
+
+		// first we have to get the size of the current viewport to set up the
+		// orthographic projection correctly
+		GLint viewport[4];
+		glGetIntegerv(GL_VIEWPORT, viewport);
+		gluOrtho2D (viewport[0], viewport[2], viewport[3], viewport[1]);
+
+		glMatrixMode (GL_MODELVIEW);
+		glPushMatrix ();
+			glLoadIdentity ();
+
+			// then we do the drawings
+			if (mDrawLogBar)
+				DrawLogBar ();
+			if (mActive)
+				DrawConsole ();
+			
+		glPopMatrix ();
+
+		glMatrixMode (GL_PROJECTION);
+	glPopMatrix ();
+
+	glMatrixMode (GL_MODELVIEW);
+
+};
+
+void SimpleConsoleOverlay::DrawLogBar () {
+	// first we have to get the size of the current viewport to set up the
+	// orthographic projection correctly
+	GLint viewport[4];
+	glGetIntegerv(GL_VIEWPORT, viewport);
+
+	// we want to enable transparency
+	glDisable(GL_DEPTH_TEST);
+	glEnable (GL_BLEND);
+	glBlendFunc(GL_SRC_ALPHA, GL_SRC_ALPHA);
+
+	float left = 0;
+	float right = static_cast<float> (GetWindowWidth());
+	float top = 0;
+//	float bottom = static_cast<float> (GetWindowHeight());
+
+	// draw the background
+	glColor4f (0.2, 0.2, 0.2, 0.3);
+	glBegin (GL_QUADS);
+	glVertex2f (left, top);
+	glVertex2f (left, top + 16);
+	glVertex2f (right, top + 16);
+	glVertex2f (right, top);
+	glEnd ();
+
+	glDisable (GL_BLEND);
+
+	// draw the log
+	std::ostringstream topbar_stream;
+	topbar_stream << "Log: " << GetLastLogEntry().mMessage;
+	DrawGLString ( 10, 10, topbar_stream.str().c_str ());
+
+	// draw the FPS counter
+	topbar_stream.str ("");
+	topbar_stream << "FPS: " << GetFrameRate();
+	DrawGLString (right - 64 , 10, topbar_stream.str().c_str ());
+
+	glEnable (GL_DEPTH_TEST);
+}
+
+void SimpleConsoleOverlay::DrawConsole () {
+	// first we have to get the size of the current viewport to set up the
+	// orthographic projection correctly
+	GLint viewport[4];
+	glGetIntegerv(GL_VIEWPORT, viewport);
+
+	// we want to enable transparency
+	glDisable(GL_DEPTH_TEST);
+//	glEnable (GL_BLEND);
+//	glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+//	glBlendFunc(GL_SRC_ALPHA, GL_SRC_ALPHA);
+
+	// calculate the screen coordinates which defines the size of the
+	// console
+	mLeft = (viewport[2] - viewport[0]) * 0.5 - (viewport[2] - viewport[0]) * 0.45 ;
+	mRight = (viewport[2] - viewport[0]) * 0.5 + (viewport[2] - viewport[0]) * 0.45;
+	mTop = -1; // Do not draw the mTop line
+	mBottom = (viewport[3] - viewport[1]) * 0.7;
+
+	// draw the background
+	glColor4f (0.2, 0.2, 0.2, Var_ConsoleTransparency.GetFloatValue());
+	glBegin (GL_QUADS);
+	glVertex2f (mLeft, mTop);
+	glVertex2f (mLeft, mBottom);
+	glVertex2f (mRight, mBottom);
+	glVertex2f (mRight, mTop);
+	glEnd ();
+
+	// draw borders
+	glColor3f (0.9, 0.9, 0.9);
+	glBegin (GL_LINE_STRIP);
+	glVertex2f (mLeft, mTop);
+	glVertex2f (mLeft, mBottom);
+	glVertex2f (mRight, mBottom);
+	glVertex2f (mRight, mTop);
+	glVertex2f (mLeft, mTop);
+	glEnd ();
+
+	glDisable (GL_BLEND);
+
+	// now draw the contents
+	DrawLastLines ();
+	DrawCurrentInput ();
+
+	glEnable (GL_DEPTH_TEST);
+}
+
+const std::vector<std::string> SimpleConsoleOverlay::GetLastLines (const unsigned int n) {
+	assert (0);
+	std::vector<std::string> result;
+	return result;
+}
+
+void SimpleConsoleOverlay::DrawLastLines () {
+	unsigned int i;
+	for (i = 0; i < mLastLines.size(); i++)
+		DrawGLString (mLeft + 8, mTop + 12 + 12 *i, mLastLines[i].c_str());
+}
+
+void SimpleConsoleOverlay::DrawCurrentInput () {
+	// We add a '_' to the current input as a simple cursor
+	static std::string current_input;
+	current_input = mCurrentInput + "_";
+ 
+	// We add a '>' at the beginning of the input line to highlight it
+	DrawGLString (mLeft, mTop + 12 + 12 * (mLastLines.size()), ">");
+	DrawGLString (mLeft + 8, mTop + 12 + 12 * (mLastLines.size()), current_input.c_str());
+}
+
+
+
+}

engine/SimpleConsoleOverlay.h

@@ -0,0 +1,69 @@
+#ifndef SIMPLECONSOLEOVERLAY
+#define SIMPLECONSOLEOVERLAY
+
+#include "Variables.h"
+
+#include <SDL/SDL.h>
+#include <string>
+
+namespace Engine {
+
+class OverlayBase;
+
+class SimpleConsoleOverlay : public OverlayBase {
+	public:
+		SimpleConsoleOverlay () {
+			mActive = false;
+			mDrawLogBar = false;
+		};
+		virtual ~SimpleConsoleOverlay() {};
+
+		virtual bool OnKeyDown (const SDL_keysym &keysym);
+		virtual bool OnKeyUp (const SDL_keysym &keysym) {
+			if(mActive)
+				return true;
+			return false;
+		};
+
+		virtual void Draw ();
+
+		void DrawLogBar ();
+		void DrawConsole ();
+	
+		/** \brief Returns the last n lines */
+		const std::vector<std::string> GetLastLines (const unsigned int n);
+		/** \brief Returns true if the Console is active */
+		bool GetActive () { return mActive; };
+		/** \brief Activates or deactivates the the Console */
+		void SetActive (bool active) { 
+			if (active) {
+				SDL_EnableUNICODE (1);
+				SDL_EnableKeyRepeat (500, 50);
+			}
+			else {
+				SDL_EnableUNICODE (-1);
+				SDL_EnableKeyRepeat (0, 100);
+			}
+			mActive = active;
+		};
+		void SetDrawLogBar (bool value) { mDrawLogBar = value; };
+
+		/** \brief Draws the console with the current content */
+		void DrawLastLines ();
+		void DrawCurrentInput ();
+
+	private:
+		std::vector<std::string> mLastLines;
+		std::string mCurrentInput;
+		bool mActive;
+		bool mDrawLogBar;
+
+		float mLeft;
+		float mTop;
+		float mRight;
+		float mBottom;
+};
+
+}
+
+#endif /* SIMPLECONSOLEOVERLAY */

engine/Sprite.cc

@@ -0,0 +1,237 @@
+#include "Engine.h"
+#include "Sprite.h"
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include <png.h>
+
+#include <cmath>
+
+namespace Engine {
+
+/* 
+ * Code is taken from http://en.wikibooks.org/wiki/OpenGL_Programming/Intermediate/Textures on
+ * Sunday, March 14 2010.
+ */
+bool Sprite::LoadFromPNG (const char *filename) {
+	LogDebug ("Loading png from %s", filename);
+
+	//header for testing if it is a png
+	png_byte header[8];
+
+	//open file as binary
+	FILE *fp = fopen(filename, "rb");
+	if (!fp) {
+		LogError ("Could not open file: %s", filename);
+		return false;
+	}
+
+	//read the header
+	fread(header, 1, 8, fp);
+
+	//test if png
+	int is_png = !png_sig_cmp(header, 0, 8);
+	if (!is_png) {
+		LogError ("Error opening png file %s: file is not a png file!", filename);
+		fclose(fp);
+		return false;
+	}
+
+	//create png struct
+	png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL,
+			NULL, NULL);
+	if (!png_ptr) {
+		LogError ("Error opening png file %s: unable to read png header", filename);
+		fclose(fp);
+		return (false);
+	}
+
+	//create png info struct
+	png_infop info_ptr = png_create_info_struct(png_ptr);
+	if (!info_ptr) {
+		LogError ("Error opening png file %s: unable to read png header", filename);
+		png_destroy_read_struct(&png_ptr, (png_infopp) NULL, (png_infopp) NULL);
+		fclose(fp);
+		return (false);
+	}
+
+	//create png info struct
+	png_infop end_info = png_create_info_struct(png_ptr);
+	if (!end_info) {
+		LogError ("Error opening png file %s: unable to read png header", filename);
+		png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp) NULL);
+		fclose(fp);
+		return (false);
+	}
+
+	//png error stuff, not sure libpng man suggests this.
+	if (setjmp(png_jmpbuf(png_ptr))) {
+		LogError ("Error opening png file %s: unable to read png header", filename);
+		png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
+		fclose(fp);
+		return (false);
+	}
+
+	//init png reading
+	png_init_io(png_ptr, fp);
+
+	//let libpng know you already read the first 8 bytes
+	png_set_sig_bytes(png_ptr, 8);
+
+	// read all the info up to the image data
+	png_read_info(png_ptr, info_ptr);
+
+	//variables to pass to get info
+	int bit_depth, color_type;
+	png_uint_32 tmWidth, tmHeight;
+
+	// get info about png
+	png_get_IHDR(png_ptr, info_ptr, &tmWidth, &tmHeight, &bit_depth, &color_type,
+			NULL, NULL, NULL);
+
+	//update mWidth and mHeight based on png info
+	mWidth = tmWidth;
+	mHeight = tmHeight;
+	
+	// Update the png info struct.
+	png_read_update_info(png_ptr, info_ptr);
+
+	// Row size in bytes.
+	int rowbytes = png_get_rowbytes(png_ptr, info_ptr);
+
+	// Allocate the image_data as a big block, to be given to opengl
+	png_byte *image_data = new png_byte[rowbytes * mHeight];
+	if (!image_data) {
+		//clean up memory and close stuff
+		png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
+		fclose(fp);
+		return false;
+	}
+
+	//row_pointers is for pointing to image_data for reading the png with libpng
+	png_bytep *row_pointers = new png_bytep[mHeight];
+	if (!row_pointers) {
+		//clean up memory and close stuff
+		png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
+		delete[] image_data;
+		fclose(fp);
+		return false;
+	}
+	// set the individual row_pointers to point at the correct offsets of image_data
+	for (unsigned int i = 0; i < mHeight; ++i)
+		row_pointers[mHeight - 1 - i] = image_data + i * rowbytes;
+
+	//read the png into image_data through row_pointers
+	png_read_image(png_ptr, row_pointers);
+
+	//Now generate the OpenGL texture object
+	glGenTextures(1, &mGlTextureName);
+	glBindTexture(GL_TEXTURE_2D, mGlTextureName);
+	glTexImage2D(GL_TEXTURE_2D,0, GL_RGBA, mWidth, mHeight, 0,
+			GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid*) image_data);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+	//clean up memory and close stuff
+	png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
+	delete[] row_pointers;
+	delete[] image_data;
+
+	fclose(fp);
+
+	return true;
+}
+
+void Sprite::DrawAt (float xpos, float ypos, float zpos) {
+	float u_start = 0., u_end = 1.;
+	if (mAnimation) {
+		int frame_index = floor ( (mAnimationFrameRate) * mAnimationTimer);
+		u_start = static_cast<float>(frame_index) / mAnimationFrameCount;
+		u_end = (frame_index + 1.) / mAnimationFrameCount;
+	}
+
+	glPushMatrix();
+	glTranslatef (xpos -mScale * mWidth * 0.5, ypos, zpos -mScale * mHeight * 0.5);
+	glScalef (mScale, mScale, mScale);
+	glDisable(GL_DEPTH_TEST);
+	glEnable(GL_TEXTURE_2D);
+	glEnable(GL_BLEND);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+	glBindTexture (GL_TEXTURE_2D, mGlTextureName);
+
+	glBegin(GL_QUADS);
+	glTexCoord2f (u_start, 0.); glVertex3f (0., 0., 0.);
+	glTexCoord2f (u_end, 0.); glVertex3f (0., 0., mHeight);
+	glTexCoord2f (u_end, 1.); glVertex3f (mWidth, 0., mHeight);
+	glTexCoord2f (u_start, 1.); glVertex3f (mWidth, 0.,0.);
+	glEnd();
+
+	glPopMatrix();
+
+	glDisable(GL_TEXTURE_2D);
+	glEnable(GL_DEPTH_TEST);
+}
+
+void Sprite::DrawAt2D (float xpos, float ypos) {
+	float u_start = 0., u_end = 1.;
+	if (mAnimation) {
+		int frame_index = floor ( (mAnimationFrameRate) * mAnimationTimer);
+		u_start = static_cast<float>(frame_index) / mAnimationFrameCount;
+		u_end = (frame_index + 1.) / mAnimationFrameCount;
+	}
+
+	glPushMatrix();
+	glTranslatef (xpos -mScale * mWidth * 0.5, ypos, 0.);
+	glScalef (mScale, mScale, mScale);
+	// \TODO Make 2d drawing of sprites a bit nicer, seems a bit overkill for such a simple function
+	glRotatef (-90, 0., 0., 1.);
+	glDisable(GL_DEPTH_TEST);
+	glEnable(GL_TEXTURE_2D);
+	glEnable(GL_BLEND);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+	glBindTexture (GL_TEXTURE_2D, mGlTextureName);
+
+	glBegin(GL_QUADS);
+	glTexCoord2f (u_start, 0.); glVertex2f (0., 0.);
+	glTexCoord2f (u_end, 0.); glVertex2f (0., mHeight);
+	glTexCoord2f (u_end, 1.); glVertex2f (mWidth, mHeight);
+	glTexCoord2f (u_start, 1.); glVertex2f (mWidth,0.);
+	glEnd();
+
+	glPopMatrix();
+
+	glDisable(GL_TEXTURE_2D);
+	glEnable(GL_DEPTH_TEST);
+}
+
+void Sprite::DrawSubAt (unsigned int index, float xpos, float ypos, float zpos) {
+	assert (index < mSubSpriteCount);
+
+	float u_start = static_cast<float>(index) / mSubSpriteCount;
+	float u_end = (index + 1.) / mSubSpriteCount;
+
+	glPushMatrix();
+	glTranslatef (xpos -mScale * mWidth * 0.5, ypos, zpos -mScale * mHeight * 0.5);
+	glScalef (mScale, mScale, mScale);
+	glDisable(GL_DEPTH_TEST);
+	glEnable(GL_TEXTURE_2D);
+	glEnable(GL_BLEND);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+	glBindTexture (GL_TEXTURE_2D, mGlTextureName);
+
+	glBegin(GL_QUADS);
+	glTexCoord2f (u_start, 0.); glVertex3f (0., 0., 0.);
+	glTexCoord2f (u_end, 0.); glVertex3f (0., 0., mHeight);
+	glTexCoord2f (u_end, 1.); glVertex3f (mWidth, 0., mHeight);
+	glTexCoord2f (u_start, 1.); glVertex3f (mWidth, 0.,0.);
+	glEnd();
+
+	glPopMatrix();
+
+	glDisable(GL_TEXTURE_2D);
+	glEnable(GL_DEPTH_TEST);
+}
+
+}

engine/Sprite.h

@@ -0,0 +1,71 @@
+#ifndef SPRITE_H
+#define SPRITE_H
+
+#include <cmath>
+
+namespace Engine {
+
+class Sprite {
+	public:
+		Sprite() {
+			mScale = 1.;
+			mWidth = 0;
+			mHeight = 0;
+			mGlTextureName = 0;
+
+			mAnimation = false;
+			mSubSpriteCount = 1;
+		}
+
+		bool LoadFromPNG (const char *filename);
+		void DrawAt (float xpos, float ypos, float zpos);
+		void DrawAt2D (float xpos, float ypos);
+		unsigned int GetWidth() { return mWidth; };
+		unsigned int GetHeight() { return mHeight; };
+
+		void SetScale (float scale) { mScale = scale; };
+
+		void SetAnimation (int frame_count, float frame_rate) {
+			mAnimation = true;
+			mAnimationFrameCount = frame_count;
+			mAnimationFrameRate = frame_rate;
+			mAnimationTimer = 0.;
+			mWidth = static_cast<unsigned int>(ceil (static_cast<float> (mWidth / mAnimationFrameCount)));
+		}
+		void ResetAnimation () {
+			mAnimationTimer = 0.;
+		}
+		void UpdateAnimation (float seconds) {
+			mAnimationTimer += seconds;
+			while (mAnimationTimer >= mAnimationFrameCount / mAnimationFrameRate) {
+				mAnimationTimer -= mAnimationFrameCount / mAnimationFrameRate;
+			}
+		}
+
+		void SetSubSpriteCount (const unsigned int count) {
+			mSubSpriteCount = count;
+			mWidth = static_cast<unsigned int>(ceil (static_cast<float> (mWidth / mSubSpriteCount)));
+		}
+		unsigned int GetSubSpriteCount () const {
+			return mSubSpriteCount;
+		}
+		void DrawSubAt (unsigned int index, float xpos, float ypos, float zpos);
+
+	private:
+		float mScale;
+
+		unsigned int mWidth;
+		unsigned int mHeight;
+		unsigned int mGlTextureName;
+
+		unsigned int mSubSpriteCount;
+
+		bool mAnimation;
+		int mAnimationFrameCount;
+		float mAnimationTimer;
+		float mAnimationFrameRate;
+};
+
+}
+
+#endif /* SPRITE_H */

engine/Variables.cc

@@ -0,0 +1,159 @@
+#include "Variables.h"
+
+#include <cstdlib>
+#include <iostream>
+
+namespace Engine {
+
+Variables* VariablesInstance = NULL;
+
+/*
+ * Inherited Module functions
+ */
+int Variables::OnInit (int argc, char* argv[]) {
+	LogDebug ("Variables Init");
+
+	VariablesInstance = this;
+
+	/* This definition of a variable causes the delayed variables to be loaded,
+	 * please keep it here! */
+	static Variable VariableSystemUp_var ("variablesystemup", "true");
+
+	return 0;
+}
+
+void Variables::OnDestroy () {
+	LogDebug ("Variables Destroy");
+
+	VariablesInstance = NULL;
+}
+
+/*
+ * Module specific functions
+ */
+void Variables::RegisterVariable (const std::string &name, Variable *var) {
+	LogDebug ("Registering Variable '%s'", name.c_str ());
+	if (mVariablesData.find (name) != mVariablesData.end()) {
+		// Variable already existing!
+		mVariablesData[name] = var;
+
+		return;
+	}
+
+	mVariablesData[name] = var;
+	
+	return;
+}
+
+/*
+ * Variable class
+ */
+Variable* Variables::GetVariable (const std::string &name) {
+	if (mVariablesData.find (name) == mVariablesData.end()) {
+		// Variable not existing!
+		return NULL;
+	}
+
+	return mVariablesData[name];
+}
+
+Variable::Variable (const std::string &name, const std::string &value) {
+	static std::vector<Variable*> delayed_variables;
+
+	mName = name;
+	mStringValue = value;
+	mFloatValue = atof (value.c_str());
+
+	if (VariablesInstance == NULL) {
+		delayed_variables.push_back (this);
+	} else if (delayed_variables.size() > 0) {
+		LogDebug ("Loading delayed Variables");
+		unsigned int i; 
+		for (i = 0; i < delayed_variables.size(); i ++)
+			VariablesInstance->RegisterVariable (delayed_variables[i]->mName, delayed_variables[i]);
+
+		delayed_variables.clear ();
+
+		RegisterVariable (name);
+	} else {
+		RegisterVariable (name);
+	}
+}
+
+void Variable::RegisterVariable (const std::string &name) {
+	if (! VariablesInstance ) {
+		LogError ("Unable to register Variable '%s': Variables System not initialized!", name.c_str());
+		return;
+	}
+
+	VariablesInstance->RegisterVariable (name, this);
+}
+
+/*
+ * Global functions
+ */
+Variable* GetVariable (const std::string &name) {
+	if (! VariablesInstance ) {
+		LogError ("Unable to register Variable '%s': Variables System not initialized!", name.c_str());
+		return NULL;
+	}
+
+	return VariablesInstance->GetVariable (name);
+}
+
+bool SetVariableValue (const std::string &name, const std::string value) {
+	if (! VariablesInstance ) {
+		LogError ("Unable to set Variable '%s': Variables System not initialized!", name.c_str());
+		return false;
+	}
+
+	Variable *var = VariablesInstance->GetVariable (name);
+	if (!var) {
+		return false;
+	}
+
+	var->SetStringValue (value);
+	var->SetFloatValue (atof (value.c_str()));
+
+	return true;
+}
+
+std::string& GetVariableString (const std::string &name, std::string def) {
+	/* We use a static result variable for the case that def was not passed to
+	 * is function */
+	static std::string def_result = def;
+
+	if (! VariablesInstance ) {
+		LogError ("Unable to register Variable '%s': Variables System not initialized!", name.c_str());
+		return def_result;
+	}
+
+	Variable *var = VariablesInstance->GetVariable (name);
+	if (!var) {
+		return def_result;
+	}
+
+	return var->GetStringValue ();
+}
+
+float &GetVariableFloat (const std::string &name, float def) {
+	/* We use a static result variable for the case that def was not passed to
+	 * is function */
+	static float def_result = def;
+
+	if (! VariablesInstance ) {
+		LogError ("Unable to register Variable '%s': Variables System not initialized!", name.c_str());
+		return def_result;
+	}
+
+	Variable *var = VariablesInstance->GetVariable (name);
+	if (!var) {
+		return def_result;
+	}
+
+	return var->GetFloatValue ();
+}
+
+
+}
+

engine/Variables.h

@@ -0,0 +1,37 @@
+#ifndef _VARIABLES_H
+#define _VARIABLES_H
+
+#include "Engine.h"
+
+#include <assert.h>
+#include <string>
+#include <map>
+
+namespace Engine {
+
+class Module;
+class Variable;
+
+/** \brief Manages all variables that can be changed by the Model itself
+ *
+ * \todo make the variable names case insensitive
+ * \todo only allow certain characters in variable names
+ */
+class Variables : public Module{
+	public:
+		void RegisterVariable (const std::string &name, Variable *var);
+		Variable *GetVariable (const std::string &name);
+
+	protected:
+		/** \brief Initializes the system */
+		int OnInit (int argc, char* argv[]);
+		/** \brief Destroys the system (must be called!) */
+		void OnDestroy ();
+		void OnRegisterCommands ();
+
+		std::map<std::string, Variable*> mVariablesData;
+};
+
+}
+
+#endif // _VARIABLES_H

engine/VariablesCommands.cc

@@ -0,0 +1,27 @@
+#include "Variables.h"
+
+namespace Engine {
+
+bool Cmd_Set (const std::vector<std::string> args) {
+	if (args.size() != 2) {
+		CommandSetErrorString ("Usage: set <name> <value>\nSets variables <name> to value <value>.");
+		return false;
+	}
+
+	Variable *test = GetVariable (args[0]);
+	if (test) {
+		test->SetStringValue (args[1]);
+		test->SetFloatValue (atof (args[1].c_str()));
+		return true;
+	}
+	
+	CommandSetErrorString ("Variable '" + args[0] +"' not found!");
+	return false;
+}
+
+void Variables::OnRegisterCommands () {
+	AddCommand ("set", Cmd_Set);
+}
+
+}
+

engine/VariablesGlobal.h

@@ -0,0 +1,68 @@
+#ifndef _VARIABLESGLOBAL_H
+#define _VARIABLESGLOBAL_H
+
+namespace Engine {
+/** \brief Represents a variable that can be modified and read within the game
+ *
+ * \note Variables \b MUST be declared as static variables, otherwise the memory that
+ * hold their values get invalidated and the system gets unstable!
+ */
+class Variable {
+	public:
+		/** \brief The constructor to be used when initializing a Variable
+		 *
+		 * \param name  The name under which the variable is engine wide
+		 * accessible
+		 * \param value  The value it is assigned to.
+		 *
+		 * The value string gets automatically converted to a float with atof ().
+		 * Modification of a Variable must always be made with the Get*, Set*
+		 * functions.
+		 */
+		Variable (const std::string &name, const std::string &value);
+
+		/** \brief Returns the string value of the Variable */
+		std::string& GetStringValue () {
+			return mStringValue;
+		}
+		/** \brief Returns the float value of the Variable */
+		float& GetFloatValue () {
+			return mFloatValue;
+		}
+		void SetStringValue (const std::string &value) {
+			mStringValue = value;
+		}
+		void SetFloatValue (float value) {
+			mFloatValue = value;
+		}
+
+	private:
+		/** \brief The default constructor must not be used.
+		 *
+		 * Use \code
+		 * Variable (const std::string &name, const std::string &value)
+		 * \endcode
+		 * instead.
+		 * */
+		Variable () { assert (0); }
+		/** \brief Registeres this Variable with the Variables System */
+		void RegisterVariable (const std::string &name);
+
+		std::string mName;
+		std::string mStringValue;
+		float mFloatValue;
+
+		friend class Variables;
+};
+
+/** \brief Provides access to a Variable stored under the given name */
+Variable* GetVariable (const std::string &name);
+/** \brief Sets the vaule of the Variable */
+bool SetVariableValue (const std::string &name, const std::string &value);
+/** \brief Returns the string value of the Variable with the given name */
+std::string& GetVariableString (const std::string &name, std::string def = "");
+/** \brief Returns the float value of the Variable with the given name */
+float& GetVariableFloat (const std::string &name, float def = 0.);
+
+}
+#endif // _VARIABLESGLOBAL_H

engine/ViewBase.cc

@@ -0,0 +1,330 @@
+#include "ViewBase.h"
+
+#include "ModelBase.h"
+#include "ControllerBase.h"
+#include "CameraBase.h"
+#include "OverlayBase.h"
+
+#include "SimpleConsoleOverlay.h"
+#include "OGLFT.h"
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#include "DrawingsGL.h"
+
+using namespace std;
+
+namespace Engine {
+
+static ViewBase* ViewInstance = NULL;
+
+void InitGL () {
+	glClearColor(0.3f, 0.3f, 0.3f, 1.0f);
+	glClearDepth(1.0);
+	glDepthFunc(GL_LESS);
+	glEnable(GL_DEPTH_TEST);
+	glShadeModel(GL_SMOOTH);
+	glEnable (GL_CULL_FACE);
+	glDisable (GL_FOG);
+
+	glMatrixMode (GL_PROJECTION);
+	glLoadIdentity ();
+	glMatrixMode (GL_MODELVIEW);
+	glLoadIdentity ();
+}
+
+/*
+ * Inherited Module functions
+ */
+int ViewBase::OnInit (int argc, char* argv[]) {
+	LogMessage ("View Init");
+
+	mWindowHeight = VIEW_DEFAULT_HEIGHT;
+	mWindowWidth = VIEW_DEFAULT_WIDTH;
+
+	SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
+
+	if( SDL_SetVideoMode( mWindowWidth, mWindowHeight, 16, SDL_OPENGL | SDL_RESIZABLE ) == 0 ) {
+		LogError ("Video mode set failed: %s", SDL_GetError ());
+		exit (-1);
+	}
+
+	InitGL ();
+	Resize (mWindowWidth, mWindowHeight);
+
+	mConsoleFont = new OGLFT::Monochrome ("./data/fonts/console.ttf", 12);
+
+	if ( mConsoleFont == 0 || !mConsoleFont->isValid() ) {
+		LogError ("Could not load font %s!", "./data/fonts/console.ttf");
+		exit (-1);
+	}
+
+	SimpleConsoleOverlay* console_overlay = new SimpleConsoleOverlay;
+	AddOverlay (console_overlay);
+
+	mConsoleFont->setForegroundColor (1., 1., 1.);
+
+	mDrawAxis = false;
+
+	mDrawGrid = false;
+	mGridSizeX = 8;
+	mGridSizeZ = 8;
+
+	ViewInstance = this;
+
+	return 0;
+}
+
+void ViewBase::OnDestroy () {
+	if (mConsoleFont )
+		delete mConsoleFont;
+	mConsoleFont = NULL;
+
+	std::vector<OverlayBase*>::iterator overlay_iter = mOverlays.begin(), overlay_temp;
+	while (overlay_iter != mOverlays.end()) {
+		overlay_temp = overlay_iter;
+		delete *overlay_temp;
+
+		overlay_iter++;
+	}
+
+	ViewInstance = NULL;
+
+	LogDebug ("View Destroy");
+}
+
+void ViewBase::CalcWorldCoordinates (int screen_x, int screen_y, float world_y, float *pos_out) {
+	GLdouble modelMatrix[16], projMatrix[16];
+	GLint viewport[4];
+	GLdouble wx, wy, wz;
+
+	glGetIntegerv (GL_VIEWPORT, viewport);
+	glGetDoublev(GL_MODELVIEW_MATRIX, modelMatrix);
+	glGetDoublev(GL_PROJECTION_MATRIX, projMatrix);
+
+	int realy = viewport[3] - screen_y - 1;
+
+	gluUnProject ((GLdouble) screen_x, (GLdouble) realy, 1.,
+			modelMatrix, projMatrix, viewport, &wx, &wy, &wz);
+
+	GLdouble t;
+	GLdouble d[3];
+	float	eye[3];
+
+	mCamera->GetEye (&eye[0]);
+
+	d[0] = wx - eye[0];
+	d[1] = wy - eye[1];
+	d[2] = wz - eye[2];
+
+	assert (fabs (d[1]) >= 1.0e-3);
+	t = -eye[1]/d[1]  + world_y;
+
+	pos_out[0] = eye[0] + t * d[0];
+	pos_out[1] = eye[1] + t * d[1];
+	pos_out[2] = eye[2] + t * d[2];
+}
+
+/*
+ * Module specific functions
+ */
+void ViewBase::UpdateCamera () {
+	EntityPhysicState* player_ent = GetEntityPhysicState (GetPlayerEntityId());
+
+	if (!player_ent) {
+		LogError ("Could not call Model::PositionCamera(): player entity not found!");
+		exit (-1);
+	}
+	vector3d entity_camera_distance (-2, 3, 0);
+	vector3d entity_position = player_ent->GetPosition();
+	player_ent->Globalize (entity_camera_distance);
+
+	mCamera->SetEye (
+			entity_camera_distance[0],
+			entity_camera_distance[1],
+			entity_camera_distance[2]
+			);
+	mCamera->SetPointOfIntrest (
+			entity_position[0],
+			entity_position[1],
+			entity_position[2]
+			);
+
+	mCamera->Update ();
+}
+
+void ViewBase::Draw () {
+	// Clear the screen
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+	// update the frame rate counter
+	static Uint32 this_frame_ticks;
+	static Uint32 last_frame_ticks = 0;
+	static Uint32 last_fps_update = 0;
+	static int frame_counter = 0;
+
+  this_frame_ticks = SDL_GetTicks ();
+	last_fps_update += this_frame_ticks - last_frame_ticks;
+	last_frame_ticks = this_frame_ticks;
+	frame_counter++;
+
+	if (last_fps_update > 1000) {
+		mFrameRate = frame_counter;
+		last_fps_update = 0;
+		frame_counter = 0;
+	}
+	
+	UpdateCamera ();
+
+	if (mDrawGrid)
+		DrawGrid ();
+
+	if (mDrawAxis)
+		DrawAxis ();
+
+	DrawWorld ();
+
+	std::vector<OverlayBase*>::iterator overlay_iter;
+	for (overlay_iter = mOverlays.begin(); overlay_iter != mOverlays.end(); overlay_iter++) {
+		(*overlay_iter)->Draw();
+	}
+
+	// and update the screen
+	SDL_GL_SwapBuffers ();
+}
+
+void ViewBase::DrawGLString (float x, float y, const char* str) {
+	glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
+	mConsoleFont->draw (x, y, str);
+}
+
+void ViewBase::GetCamereEye (float *eye_out) {
+	assert (mCamera);
+	mCamera->GetEye (eye_out);
+}
+
+void ViewBase::DrawGrid () {
+	float xmin, xmax, xstep, zmin, zmax, zstep;
+	int i, count_x, count_z;
+
+	xmin = -mGridSizeX;
+	xmax = mGridSizeX;
+	zmin = -mGridSizeZ;
+	zmax = mGridSizeZ;
+
+	count_x = mGridSizeX * 2;
+	count_z = mGridSizeZ * 2;
+
+	xstep = 1.;
+	zstep = 1.;
+
+	glColor3f (1., 1., 1.);
+	glBegin (GL_LINES);
+	for (i = 0; i <= count_x; i++) {
+		glVertex3f (i * xstep + xmin, 0., zmin);
+		glVertex3f (i * xstep + xmin, 0., zmax);
+	}
+	for (i = 0; i <= count_z; i++) {
+		glVertex3f (xmin, 0, i * zstep + zmin);
+		glVertex3f (xmax, 0, i * zstep + zmin);
+	}
+	glEnd ();
+
+}
+
+void ViewBase::DrawWorld () {
+}
+
+void ViewBase::Resize (int width, int height) {
+	if (height == 0)
+		height = 1;
+
+	mWindowWidth = static_cast<unsigned int> (width);
+	mWindowHeight = static_cast<unsigned int> (height);
+
+	glViewport(0, 0, width, height);
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	gluPerspective(mCamera->GetFOVY (), float (width) / float (height), 0.1, 100);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity ();
+
+	LogDebug ("Resize to: %d x %d", mWindowWidth,mWindowHeight);
+
+	/** \warning
+	 * This call has to be made for SDL 1.2 for 1.3 there seems to be a
+	 * workaround, however since I do not yet run SDL 1.3 I hold on to this.
+	 * See http://lists.libsdl.org/pipermail/sdl-libsdl.org/2008-November/067306.html
+	 */
+	if( SDL_SetVideoMode( mWindowWidth, mWindowHeight, 16, SDL_OPENGL | SDL_RESIZABLE ) == 0 ) {
+		LogError ("Video mode set failed: %s", SDL_GetError ());
+		exit (-1);
+	}
+}
+
+bool ViewBase::SendKeyDown (const SDL_keysym &keysym) {
+	std::vector<OverlayBase*>::iterator overlay_iter;
+	for (overlay_iter = mOverlays.begin(); overlay_iter != mOverlays.end(); overlay_iter++) {
+		if ( (*overlay_iter)->OnKeyDown (keysym))
+			return true;
+	}
+
+	return false;
+}
+
+bool ViewBase::SendKeyUp (const SDL_keysym &keysym) {
+	std::vector<OverlayBase*>::iterator overlay_iter;
+	for (overlay_iter = mOverlays.begin(); overlay_iter != mOverlays.end(); overlay_iter++) {
+		if ( (*overlay_iter)->OnKeyUp (keysym))
+			return true;
+	}
+
+	return false;
+}
+
+bool ViewBase::SendMouseButtonUp (Uint8 button, Uint16 xpos, Uint16 ypos) {
+	std::vector<OverlayBase*>::iterator overlay_iter;
+	for (overlay_iter = mOverlays.begin(); overlay_iter != mOverlays.end(); overlay_iter++) {
+		if ( (*overlay_iter)->OnMouseButtonUp (button, xpos, ypos))
+			return true;
+	}
+
+	return false;
+}
+
+bool ViewBase::SendMouseButtonDown (Uint8 button, Uint16 xpos, Uint16 ypos) {
+	std::vector<OverlayBase*>::iterator overlay_iter;
+	for (overlay_iter = mOverlays.begin(); overlay_iter != mOverlays.end(); overlay_iter++) {
+		if ( (*overlay_iter)->OnMouseButtonDown (button, xpos, ypos))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Global functions
+ */
+void DrawGLString (float x, float y, const char* str) {
+	if (!ViewInstance) {
+		LogError ("Cannot Draw GL String: View not yet initialized!");
+		return;
+	}
+	ViewInstance->DrawGLString (x, y, str);
+}
+
+unsigned int GetWindowWidth() {
+	return ViewInstance->GetWindowWidth ();
+}
+
+unsigned int GetWindowHeight() {
+	return ViewInstance->GetWindowHeight ();
+}
+
+int GetFrameRate () {
+	return ViewInstance->GetFrameRate ();
+}
+
+}

engine/ViewBase.h

@@ -0,0 +1,98 @@
+#ifndef _VIEWBASE_H
+#define _VIEWBASE_H
+
+#include "Engine.h"
+
+// forward declarations for the OGLFT fonts
+namespace OGLFT {
+	class Monochrome;
+}
+
+namespace Engine {
+
+class Module;
+class ModelBase;
+class CameraBase;
+class OverlayBase;
+
+/** \brief Performs the actual drawing based on Camera and Model
+ */
+
+class ViewBase : public Module{ 
+	public:
+		/** \brief Resizes the View */
+		void Resize (int width, int height);
+
+		/** \brief Performs all drawing */
+		virtual void Draw ();
+
+		/** \brief Draws a string at the given position using current projection
+		 * and modelview matrices */
+		void DrawGLString (float x, float y, const char* str);
+		/** \brief Stores the eye poisition in eye_out */
+		void GetCamereEye (float *eye_out);
+
+		/** \brief Calculates the world coordinates to given screen coordinates */
+		void CalcWorldCoordinates (int screen_x, int screen_y, float world_y, float *pos_out);
+
+		unsigned int GetWindowWidth () { return mWindowWidth; };
+		unsigned int GetWindowHeight () { return mWindowHeight; };
+		int GetFrameRate() { return mFrameRate; };
+
+		void SetDrawAxis (bool draw_axis) { mDrawGrid = draw_axis; };
+		bool GetDrawAxis () { return mDrawGrid; };
+		void SetDrawGrid (bool draw_grid) { mDrawGrid = draw_grid; };
+		bool GetDrawGrid () { return mDrawGrid; };
+		void SetGridSize (int x, int z) {	mGridSizeX = x; mGridSizeZ = z;	}
+
+		void AddOverlay (OverlayBase *overlay) { mOverlays.push_back (overlay); };
+
+		/* Input forwarding for the overlays */
+		bool SendKeyDown (const SDL_keysym &keysym);
+		bool SendKeyUp (const SDL_keysym &keysym);
+		bool SendMouseButtonUp (Uint8 button, Uint16 xpos, Uint16 ypos);
+		bool SendMouseButtonDown (Uint8 button, Uint16 xpos, Uint16 ypos);
+
+	protected:
+		/** \brief Initializes the system */
+		int OnInit (int argc, char* argv[]);
+		/** \brief Destroys the system (must be called!) */
+		void OnDestroy ();
+
+		/** \brief Updates the camera for further drawing */
+		virtual void UpdateCamera ();
+		/** \brief Draws a grid of 16 x 16 tiles */
+		void DrawGrid ();
+		/** \brief Draws the level and all the visible Entities */
+		virtual void DrawWorld ();
+		/** \brief Draws orthographic overlay*/
+		void DrawOverlay2D ();
+
+		ModelBase *mModel;
+		CameraBase *mCamera;
+
+		std::vector<OverlayBase*> mOverlays;
+
+		/** \brief The height of the canvas we're drawing on */
+		unsigned int mWindowHeight;
+		/** \brief The width of the canvas we're drawing on */
+		unsigned int mWindowWidth;
+		/** \brief Stores the current frame rate */
+		int mFrameRate;
+
+		bool mDrawAxis;
+		bool mDrawGrid;
+		int mGridSizeX;
+		int mGridSizeZ;
+
+		/** \brief Font that is used in the console */
+		OGLFT::Monochrome* mConsoleFont;
+
+		friend class Engine;
+};
+
+}
+
+#include "ViewBaseGlobal.h"
+
+#endif // _VIEWBase_H

engine/ViewBaseGlobal.h

@@ -0,0 +1,17 @@
+#ifndef _VIEWGLOBAL_H
+#define _VIEWGLOBAL_H
+
+namespace Engine {
+
+/** \brief Draws the given string at the given position using the current
+ * OpenGL transformations */
+void DrawGLString (float x, float y, const char* str);
+
+unsigned int GetWindowWidth();
+unsigned int GetWindowHeight();
+
+int GetFrameRate ();
+
+}
+
+#endif /* _VIEWGLOBAL_H */

engine/VisualEntityBase.cc

@@ -0,0 +1,72 @@
+#include "EntityBase.h"
+
+#include <GL/gl.h>
+
+namespace Engine {
+
+void EntityVisualState::Draw () {
+	if (mBaseType == EntityBaseTypeActor) {
+		int i, segments;
+		segments = 20;
+		double x, z, rad, drad;
+
+		drad = (M_PI * 2) / segments;
+
+		glBegin (GL_TRIANGLE_FAN);
+		glVertex3f (0., 0., 0.);
+		for (i = 0; i <= segments; i++) {
+			rad = drad * i;
+			sincos (rad, &z, &x);
+			glVertex3f (x * mRadius, 0., -z * mRadius);
+		}
+		glEnd ();
+
+		glDisable (GL_DEPTH_TEST);
+		glColor3f (0.8, 0., 0.2);
+		glBegin (GL_TRIANGLES);
+			glVertex3f (mRadius, 0., 0.);
+			glVertex3f (0., 0., -mRadius * 0.3);
+			glVertex3f (0., 0., mRadius * 0.3);
+		glEnd ();
+		glEnable (GL_DEPTH_TEST);
+
+		return;
+	} else if (mBaseType == EntityBaseTypeBlock) {
+		glBegin (GL_QUADS);
+		glVertex3f (-0.5, 0., 0.5);
+		glVertex3f (0.5, 0., 0.5);
+		glVertex3f (0.5, 0., -0.5);
+		glVertex3f (-0.5, 0., -0.5);
+		glEnd ();
+	} else if (mBaseType == EntityBaseTypeParticle) {
+		int i, segments;
+		segments = 20;
+		double x, z, rad, drad;
+
+		drad = (M_PI * 2) / segments;
+
+		glDisable (GL_DEPTH_TEST);
+		glColor3f (0., 0.8, 0.1);
+		glBegin (GL_TRIANGLE_FAN);
+		glVertex3f (0., 0., 0.);
+		for (i = 0; i <= segments; i++) {
+			rad = drad * i;
+			sincos (rad, &z, &x);
+			glVertex3f (x * mRadius, 0., -z * mRadius);
+		}
+		glEnd ();
+
+		glColor3f (0.8, 0., 0.2);
+		glBegin (GL_TRIANGLES);
+			glVertex3f (mRadius, 0., 0.);
+			glVertex3f (0., 0., -mRadius * 0.3);
+			glVertex3f (0., 0., mRadius * 0.3);
+		glEnd ();
+		glEnable (GL_DEPTH_TEST);
+
+		return;
+	}
+}
+
+}
+

engine/doc/Mainpage.h

@@ -0,0 +1,96 @@
+/** \file documentation.h \mainpage Main Page 
+ * 
+ * This is the documentation of Engine -- a game engine without a name.
+ *
+ * \section General Information
+ *
+ * To get an overview over the most important functions and classes have a
+ * look at Engine. For the structure of the Engine look at Engine::Engine. In
+ * \ref usecases you find documentation on how things are supposed to work and
+ * what the ideas behind certain designs is.
+ *
+ * \section Physics
+ *
+ * So far we only use a very simple physics system which is mostly defined by
+ * the Engine::Physics class. It uses the coll2d collision library. Collision
+ * response so far only tries to prevent interpenetration.
+ *
+ * \section Networking
+ *
+ * For easier networking it is assumed that everything runs over a network.
+ * The game itself is rather a smart client to a simple synchronization
+ * protocol. What is being synchronized is the game state and the client
+ * simply displays the current state it knows. The client is "smart" as it
+ * tries to guess what the next state will be.
+ *
+ * For networking we want to use Enet http://enet.bespin.org/.
+ *
+ * Notes for networking: At
+ * http://www.gamedev.net/community/forums/topic.asp?topic_id=550962 is an
+ * interesting thread about modeling the updates. Especially the answer of
+ * Antheus at http://www.gamedev.net/community/forums/viewreply.asp?ID=3546077
+ * describes two fundamental models:
+ *
+ * Level Triggering (GoF Observer Pattern): Entity A sends its changes to the
+ * Observer pattern and all objects that are interested in the state of Entity
+ * A get notfied by the observer.
+ *
+ * Edge Triggering: For each Entity A the Observer B is interested, it stores
+ * a flag for a value it is interested in (e.g. one for position, one for
+ * velocity, etc.). When Entity A modifies one of the values it notifies the
+ * observer that its current state has changed and the Observer sets the flag
+ * to "dirty". Anyone interested in events polls at the Observer and decides
+ * what to do with it. When the value is queried, the Observer reads the value
+ * from the Entity and clears the flag.
+ *
+ * For networking a combination can be used: During the simulation loop only
+ * Edge Triggering is performed and at the end of it, all dirty States get
+ * sent over the network.
+ *
+ * When notifying events such as "Add new Entity X" the user tomv describes at
+ * http://www.gamedev.net/community/forums/viewreply.asp?ID=3545586 a method
+ * to circumvent these messages. Instead, the server simply sends out updates
+ * about the Entities around a player where close Entities are updated more
+ * frequently than ones that are further away. It simply sends "Entity X
+ * changed by D". If a client does not know what the Entity X is, it queries
+ * the type and current state of the Entity X and therefore reconstructs the
+ * surroundings step-by-step. It is also robust against dropped messages of
+ * the form "Add new Entity X".
+ *
+ * At tomvas model there are some problems: How are events "Delete Entity X"
+ * handled? How to handle malicious clients that request the state of all
+ * Entities? (Solution for the last question: Request Queues).
+ *
+ * Kylotan cals tomvas model as a unreliable system for generic state
+ * [synchronization?] (http://www.gamedev.net/community/forums/viewreply.asp?ID=3548662).
+ * Additionally he mentions that it can increase occurences of short term
+ * unsynchronous states and reccomends using some reliable message passing.
+ *
+ * \section ToDos
+ *
+ * This is a loose list of items that are to be implemented. For a list of all
+ * todos within the code have a look at the \ref todo.
+ *
+ * \todo [high] Create a simple racing or asteroids game
+ * \todo [med] Clear all references of EntityVisualState and EntityGameState
+ * \todo [med] Clarify functionalities of CreateEntity, KillEntity, RegisterEntity, UnregisterEntity (which frees memory, which does only change the state of the Model?)
+ * \todo [med] Add basic networking
+ * \todo [med] Add serialization
+ * \todo [med] Add cal3d support
+ * \todo [med] Smooth Physics at convex collisions (somehow there is jitter)
+ * \todo [med] Create better collsion response
+ * \todo [med] In rare cases two Actors can penetrate each other (probably at slow velocities)
+ * \todo [low] Add a timer object to keep track of what is sucking performance.
+ * \todo [low] Add a inspector widget that shows information about a selected Entity
+ * \todo [low] Use a std::map<string, string> as initialization parameters for
+ * Engine::Module::Init()
+ *
+ * Done:
+ * - [high] In Physics remove dependancy on the Model to pass on collision
+ *   events
+ * - [high] Fix Physics bug when two actors collide actively (i.e. velocity
+ *   towards each other)
+ * - [med]  Better Game Input so that each Entity has its own ControllerState
+ *   that can be modified
+ * - [med] (31-01-2009) Add support for loading levels (and saving!)
+ */

engine/doc/Usecases.h

@@ -0,0 +1,114 @@
+/** \page usecases Usecases
+ *
+ * This page contains some information on how various tasks are supposed to be
+ * performed with this engine. It should help understand how the internals
+ * work and how to avoid certain pitfalls.
+ *
+ * \section entity_management Entity Management
+ *
+ * Entities have to be created with Engine::CreateEntity() Factory Method.
+ * This will also cause the correct registration in all modules (especially in
+ * the Engine::Physics module). And create the registrations for it.
+ *
+ * Once an Entity is no more used, one has to call Engine::DestroyEntity().
+ * 
+ * \section entitiy_drawing Drawing of an Entity
+ *
+ * Aim: The visual state must always represent the visual state of the game
+ * state.
+ *
+ * To do this we always have to update the visual entity from the game state
+ * entity.
+ *
+ * \code
+ * 	View::DrawEntity (Entity* entity) {
+ * 		// if this entity has no visual part we don't need to draw
+ * 		if (! entity->mPhysicState) return;
+ *
+ *		// update entity->mVisualState based on entity->mGameState
+ *
+ * 		// perform positioning based on entity->mPhysicState
+ *
+ *		// perform drawing based on entity->mVisualState
+ *	}
+ *	\endcode
+ *
+ * \section game_input Game Input
+ *
+ * Each Entity has a ControllerState which keeps track on how the Entity is
+ * currently steered. This is then processed by the model each frame for each
+ * entity and updates the velocities / orientations etc. before the physical
+ * simulation is started. The player input simply forwards its input to the
+ * Entity with the Player Id and updates the ControllerState of the Entity
+ * with the Id.
+ *
+ * To add a new key state one has to follow these steps:
+ * - add a new EntityControllerKeyState e.g. EntityKeyStateCrouch (must be added
+ *   above EntityKeyStateLast)
+ * - define the behaviour of the control in Entity::ProcessController() which
+ *   updates the EntityPhysicalState of the Entity
+ * - add a command to be able to bind a key to the EntityControllerKeyState
+ *
+ * \section console_input Console Input
+ *
+ * Since it could be that the key being pressed has to be forwarded to another
+ * system such as the Menu or the Engine::Console system, we have to query the
+ * Engine::Model whether it is active and forward the input if it is the case.
+ * Otherwise we just execute the binding for the key (if it exists).
+ *
+ * \code
+ * 	Controller::OnKeyDown (SDLKey key) {
+ * 		if (mConsole->GetActive ())
+ * 			mConsole->OnKeyDown (key);
+ *
+ *		if (mBinding[key].size())
+ *			mCommands->QueueCommand (mBinding[key]);
+ *	}
+ * \endcode
+ *
+ * \section addcommand Adding a Command to the Command System
+ *
+ * For the various Modules such as Engine::Controller, Engine::View, etc.
+ * separate files exist in which commands are defined. The filename pattern is
+ * usually [ModuleName]Commands.cc and contains the function
+ *	\code void ModuleName::OnRegisterCommands () \endcode which is run during the
+ * initialization phase of the Engine in Engine::OnInit.
+ *
+ * Commands themselves have the signature:
+ * \code bool Cmd_CrazyCommand (std::vector<std::string> args) \endcode
+ * and return true on success and error if some error has happened. The
+ * prefix \e Cmd_ is not mandatory but keeps things clear.
+ *
+ * Please make sure to call Engine::CommandSetErrorString in such a case. The
+ * message itself will be automatically reported to the Engine::Logging system
+ * as a warning since Command errors are hopefully not that important that
+ * they can crash the whole Engine.
+ *
+ * To register a Command to the Engine::Commands system you have to call \code
+ * AddCommand ("crazycommand", Cmd_CrazyCommand); \endcode in
+ * ModuleName::OnRegisterCommands. With this the Command is accessible through
+ * the Command system.
+ *
+ * \section addvariable Adding a Variable to the Engine::Variable System
+ *
+ * To register a variable to the Engine::Variables Module one \e must use a
+ * static variable of type Engine::Variable and use a special constructor:
+ * \code
+ *		static Var_Variable PlayerSpeed ("playerspeed", "1.25");
+ * \endcode
+ * This constructor takes care of registering the Variable PlayerSpeedVariable
+ * and its value to the Engine::Variables Module. The first argument is the
+ * name of the variable which can be used to retrieve a pointer to the
+ * Variable with Engine::GetVariable, Engine::GetVariableString, etc. The
+ * second argument is the value which the system will automatically try to
+ * convert to a float. This float is then returned if Engine::GetVariableFloat
+ * is called.
+ *
+ * The prefix \e Var_ is for readability in the code.
+ *
+ * The keyword \e static ensures that the lifespan of the variable is not only
+ * in a local function environment and thus mandatory. However it is
+ * registered at that time the program executes the first time the line in
+ * which the definition was made. To be safe define all your variables in the
+ * global scope of te source file of your Engine::Module.
+ */

engine/globals.h

@@ -0,0 +1,16 @@
+#ifndef _GLOBALS_H
+#define _GLOBALS_H
+
+#define LOG_DEFAULT_LEVEL     LogLevelMessage
+#define LOG_MAX_MESSAGE_LENGTH 1024
+
+#define VIEW_DEFAULT_HEIGHT   600
+#define VIEW_DEFAULT_WIDTH    800
+
+#ifdef WIN32
+	#include <windows.h>
+#endif
+
+#include <SDL/SDL.h>
+
+#endif // _GLOBALS_H

engine/keytable.h

@@ -0,0 +1,166 @@
+#ifndef KEYTABLE_H
+#define KEYTABLE_H
+
+#include <SDL/SDL.h>
+
+/** \brief Defines the key codes for mouse buttons
+ *
+ * With this enum we can treat mouse button events the same way as we treat
+ * keyboard events. To do so we define the left button as the last keyboard
+ * button.
+ */
+enum MouseButton {
+	MouseButtonUnknown = SDLK_LAST,
+	MouseButtonLeft,
+	MouseButtonMiddle,
+	MouseButtonRight,
+	MouseButtonWheelUp,
+	MouseButtonWheelDown,
+	MouseButtonLast
+};
+
+struct key_definition {
+	int keynum;
+	const char *keystr;
+};
+
+const int keytable_last = MouseButtonLast;
+
+static const key_definition key_table[] = {
+	{SDLK_BACKSPACE, "backspace"},   	
+	{SDLK_TAB, "tab"},
+//	{SDLK_CLEAR, "12"},
+	{SDLK_RETURN, "return"},
+	{SDLK_PAUSE, "pause"},
+	{SDLK_ESCAPE, "escape"},
+	{SDLK_SPACE, "space"},
+	{SDLK_EXCLAIM, "exclaim"},
+//	{SDLK_QUOTEDBL, ""},
+	{SDLK_HASH, "#"},
+	{SDLK_DOLLAR, "$"},
+	{SDLK_AMPERSAND, "&"},
+//	{SDLK_QUOTE, "39"},
+//	{SDLK_LEFTPAREN, "("},
+//	{SDLK_RIGHTPAREN, ")"},
+//	{SDLK_ASTERISK, "*"},
+	{SDLK_PLUS, "+"},
+	{SDLK_COMMA, ","},
+	{SDLK_MINUS, "-"},
+	{SDLK_PERIOD, "."},
+	{SDLK_SLASH, "/"},
+	{SDLK_0, "0"},
+	{SDLK_1, "1"},
+	{SDLK_2, "2"},
+	{SDLK_3, "3"},
+	{SDLK_4, "4"},
+	{SDLK_5, "5"},
+	{SDLK_6, "6"},
+	{SDLK_7, "7"},
+	{SDLK_8, "8"},
+	{SDLK_9, "9"},
+	{SDLK_COLON, ":"},
+	{SDLK_SEMICOLON, ";"},
+	{SDLK_LESS, "<"},
+	{SDLK_EQUALS, "="},
+	{SDLK_GREATER, ">"},
+	{SDLK_QUESTION, "?"},
+	{SDLK_AT, "@"},
+	{SDLK_LEFTBRACKET, "["},
+	{SDLK_BACKSLASH, "\\"},
+	{SDLK_RIGHTBRACKET, "]"},
+	{SDLK_CARET, "^"},
+	{SDLK_UNDERSCORE, "_"},
+	{SDLK_BACKQUOTE, "`"},
+	{SDLK_a, "a"},
+	{SDLK_b, "b"},
+	{SDLK_c, "c"},
+	{SDLK_d, "d"},
+	{SDLK_e, "e"},
+	{SDLK_f, "f"},
+	{SDLK_g, "g"},
+	{SDLK_h, "h"},
+	{SDLK_i, "i"},
+	{SDLK_j, "j"},
+	{SDLK_k, "k"},
+	{SDLK_l, "l"},
+	{SDLK_m, "m"},
+	{SDLK_n, "n"},
+	{SDLK_o, "o"},
+	{SDLK_p, "p"},
+	{SDLK_q, "q"},
+	{SDLK_r, "r"},
+	{SDLK_s, "s"},
+	{SDLK_t, "t"},
+	{SDLK_u, "u"},
+	{SDLK_v, "v"},
+	{SDLK_w, "w"},
+	{SDLK_x, "x"},
+	{SDLK_y, "y"},
+	{SDLK_z, "z"},
+	{SDLK_KP0, "keypad_0"},
+	{SDLK_KP1, "keypad_1"},
+	{SDLK_KP2, "keypad_2"},
+	{SDLK_KP3, "keypad_3"},
+	{SDLK_KP4, "keypad_4"},
+	{SDLK_KP5, "keypad_5"},
+	{SDLK_KP6, "keypad_6"},
+	{SDLK_KP7, "keypad_7"},
+	{SDLK_KP8, "keypad_8"},
+	{SDLK_KP9, "keypad_9"},
+	{SDLK_KP_PERIOD, "keypad_period"},
+	{SDLK_KP_DIVIDE, "keypad_devide"},
+	{SDLK_KP_MULTIPLY, "keypad_multiply"},
+	{SDLK_KP_MINUS, "keypad_minus"},
+	{SDLK_KP_PLUS, "keypad_plus"},
+	{SDLK_KP_ENTER, "keypad_enter"},
+	{SDLK_KP_EQUALS, "keypad_equals"},
+	{SDLK_UP, "up"},
+	{SDLK_DOWN, "down"},
+	{SDLK_RIGHT, "right"},
+	{SDLK_LEFT, "left"},
+	{SDLK_INSERT, "insert"},
+	{SDLK_HOME, "home"},
+	{SDLK_END, "end"},
+	{SDLK_PAGEUP, "pageup"},
+	{SDLK_PAGEDOWN, "pagedown"},
+	{SDLK_F1,  "f1"},
+	{SDLK_F2,  "f2"},
+	{SDLK_F3,  "f3"},
+	{SDLK_F4,  "f4"},
+	{SDLK_F5,  "f5"},
+	{SDLK_F6,  "f6"},
+	{SDLK_F7,  "f7"},
+	{SDLK_F8,  "f8"},
+	{SDLK_F9,  "f9"},
+	{SDLK_F10, "f10"},
+	{SDLK_F11, "f11"},
+	{SDLK_F12, "f12"},
+	{SDLK_F13, "f13"},
+	{SDLK_F14, "f14"},
+	{SDLK_F15, "f15"},
+	{SDLK_NUMLOCK, "numlock"},
+	{SDLK_CAPSLOCK, "capslock"},
+	{SDLK_SCROLLOCK, "scrollock"},
+	{SDLK_RSHIFT, "right_shift"},
+	{SDLK_LSHIFT, "left_shift"},
+	{SDLK_RCTRL, "right_ctrl"},
+	{SDLK_LCTRL, "left_ctrl"},
+	{SDLK_RALT, "right_alt"},
+	{SDLK_LALT, "left_alt"},
+	{SDLK_RMETA, "right_meta"},
+	{SDLK_LMETA, "left_meta"},
+	{SDLK_LSUPER, "left_super"},		/* Left "Windows" key */
+	{SDLK_RSUPER, "right_super"},		/* Right "Windows" key */
+	{SDLK_MODE, "altgr"},		/* "Alt Gr" key */
+	{SDLK_COMPOSE, "compose"},		/* Multi-key compose key */
+	{SDLK_DELETE, "delete"},
+	{MouseButtonLeft, "mouse_left"},
+	{MouseButtonMiddle, "mouse_middle"},
+	{MouseButtonRight, "mouse_right"},
+	{MouseButtonWheelUp, "mouse_wheelup"},
+	{MouseButtonWheelDown, "mouse_wheeldown"},
+	{keytable_last, NULL}
+};
+
+#endif /* KEYTABLE_H */
+

engine/libraries/CMakeLists.txt

@@ -0,0 +1,3 @@
+ADD_SUBDIRECTORY ( mathlib )
+ADD_SUBDIRECTORY ( coll2d )
+ADD_SUBDIRECTORY ( oglft )

engine/libraries/coll2d/CMake/FindUnitTest++.cmake

@@ -0,0 +1,28 @@
+# - Try to find UnitTest++
+#
+#
+
+SET (UNITTEST++_FOUND FALSE)
+
+FIND_PATH (UNITTEST++_INCLUDE_DIR UnitTest++.h /usr/include/unittest++ /usr/local/include/unittest++ $ENV{UNITTESTXX_PATH}/src $ENV{UNITTESTXX_INCLUDE_PATH})
+
+FIND_LIBRARY (UNITTEST++_LIBRARY NAMES UnitTest++ PATHS /usr/lib /usr/local/lib $ENV{UNITTESTXX_PATH} ENV{UNITTESTXX_LIBRARY_PATH})
+
+IF (UNITTEST++_INCLUDE_DIR AND UNITTEST++_LIBRARY)
+	SET (UNITTEST++_FOUND TRUE)
+ENDIF (UNITTEST++_INCLUDE_DIR AND UNITTEST++_LIBRARY)
+
+IF (UNITTEST++_FOUND)
+   IF (NOT UnitTest++_FIND_QUIETLY)
+      MESSAGE(STATUS "Found UnitTest++: ${UNITTEST++_LIBRARY}")
+   ENDIF (NOT UnitTest++_FIND_QUIETLY)
+ELSE (UNITTEST++_FOUND)
+   IF (UnitTest++_FIND_REQUIRED)
+      MESSAGE(FATAL_ERROR "Could not find UnitTest++")
+   ENDIF (UnitTest++_FIND_REQUIRED)
+ENDIF (UNITTEST++_FOUND)
+
+MARK_AS_ADVANCED (
+	UNITTEST++_INCLUDE_DIR
+	UNITTEST++_LIBRARY
+	)

engine/libraries/coll2d/CMakeLists.txt

@@ -0,0 +1,21 @@
+PROJECT (COLL2D)
+
+CMAKE_MINIMUM_REQUIRED (VERSION 2.6)
+
+# Needed for UnitTest++
+LIST( APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMake )
+
+SET ( COLL2D_SRCS
+  src/coll2d.cc
+  )
+
+INCLUDE_DIRECTORIES ( include ../mathlib/ )
+
+SET_TARGET_PROPERTIES ( ${PROJECT_EXECUTABLES} PROPERTIES
+  LINKER_LANGUAGE CXX
+)
+
+SUBDIRS (tests)
+
+ADD_LIBRARY ( coll2d ${COLL2D_SRCS} )
+

engine/libraries/coll2d/include/coll2d.h

@@ -0,0 +1,346 @@
+#ifndef _COLL2D_H
+#define _COLL2D_H
+
+/** \brief Coll2d - A 2d collision detection library
+ * \author Martin Felis <martin@silef.de>
+ *
+ * This library provides functions to detect collisions between polygons and
+ * spheres.
+ *
+ * Notes:
+ * - vertices of polygons are described in local coordinates
+ * - return values of check_collision are in global coordinates
+ * - all Shapes get copied to a temporary instance which will then get
+ *   transferred into global coordinates
+ * - Polygons are assumed to be convex and the vertices are stored
+ *   counter clockwise.
+ * - The transformation of the global position and velocities towards
+ *   relative position and velocities happens in the
+ *   int check_collision_<type>_<type> functions!
+ */
+
+#include <mathlib.h>
+#include <iostream>
+#include <cstring>
+
+#include <coll2d_errors.h>
+
+namespace coll2d {
+
+/** \brief Contains the information of a collision
+ *
+ * \param normal  The normal of the reference plane
+ * \param point   The actual point where the collision happens in global
+ *                cooldinates
+ * \param time    If both objects move for this amount of time the contact
+ *                will occur.
+ * \param reference_shape
+ *                If 0, the first shape passed to he check_collision function
+ *                is the reference shape, otherwise the second.
+*/
+struct CollisionInfo {
+	vector3d normal;
+	vector3d point;
+	float time;
+	int reference_shape;
+
+	CollisionInfo () : normal (0., 0., 0.), point (0., 0., 0.), time (-1.), reference_shape (-1) {
+	}
+
+	CollisionInfo& operator= (const CollisionInfo& info) {
+		if (this != &info) {
+			normal = info.normal;
+			point = info.point;
+			time = info.time;
+			reference_shape = info.reference_shape;
+		}
+
+		return *this;
+	}
+
+	void doPrint (const char* msg) {
+		std::cout << msg;
+		std::cout <<  "Time   = " << time << std::endl;
+		normal.print ("Normal = ");
+		point.print ( "Point  = ");
+		std::cout <<  "Reference = " << reference_shape << std::endl;
+	}
+};
+
+/** \brief Base class for all shapes
+ *
+ */
+class Shape {
+protected:
+	vector3d mPosition;
+	vector3d mVelocity;
+	float mAngle;
+	float mAngleVelocity;
+
+	virtual void dummy() {
+	}
+public:
+	Shape():
+		mPosition (0., 0., 0.),
+		mVelocity (0., 0., 0.),
+		mAngle (0.),
+		mAngleVelocity (0.) {
+	}
+	Shape (const Shape &shape):
+		mPosition (shape.mPosition),
+		mVelocity (shape.mVelocity),
+		mAngle (shape.mAngle),
+		mAngleVelocity (shape.mAngleVelocity)
+	{ }
+
+	virtual ~Shape () {};
+
+	/** \brief Creates and returns a copy of itself */
+	virtual Shape* getCopy () = 0;
+
+	void setPosition(vector3d position) {
+		mPosition = position;
+	}
+	vector3d getPosition() {
+		return mPosition;
+	}
+	void setVelocity(vector3d velocity) {
+		mVelocity = velocity;
+	}
+	vector3d getVelocity() {
+		return mVelocity;
+	}
+
+	void setAngle (const float &angle) {
+		mAngle = angle;
+	}
+	float getAngle () {
+		return mAngle;
+	}
+	void setAngleVelocity (float angle_velocity) {
+		mAngleVelocity = angle_velocity;
+	}
+	float getAngleVelocity () {
+		return mAngleVelocity;
+	}
+
+	virtual void doPrintType() {
+		std::cout << "Shape" << std::endl;
+	}
+	virtual void doPrint (const char* name) {
+		std::cout << name << "<unknown shape>" << std::endl;
+	}
+	friend int check_collision_rel(Shape *shape_a, Shape *shape_b,
+			vector3d *velocity_b, CollisionInfo* info);
+};
+
+class Polygon: public Shape {
+private:
+	unsigned int mVerticeCount;
+	vector3d *mVertices;
+	bool mFreeVertices;
+public:
+	Polygon() {
+		mVerticeCount = 0;
+		mVertices = NULL;
+		mFreeVertices = false;
+	}
+	Polygon(unsigned int n) {
+		mVerticeCount = n;
+		mVertices = new vector3d[n];
+		mFreeVertices = true;
+	}
+	Polygon(unsigned int n, vector3d *vertices) {
+		mVerticeCount = n;
+		mFreeVertices = false;
+
+		if (vertices == NULL && n > 0) {
+			mVertices = new vector3d [n];
+			mFreeVertices = true;
+		}
+
+		mVertices = vertices;
+	}
+	Polygon (const Polygon &polygon) : Shape (polygon) {
+		mVerticeCount = polygon.mVerticeCount;
+		mFreeVertices = true;
+
+		mVertices = new vector3d[mVerticeCount];
+		memcpy (mVertices, polygon.mVertices, sizeof (vector3d) * mVerticeCount);
+	}
+	virtual ~Polygon () {
+		if (mFreeVertices == true && mVertices)
+			delete[] mVertices;
+	}
+
+	virtual Polygon* getCopy () {
+		Polygon *copy = new Polygon (*this);
+
+		assert (copy);
+
+		return copy;
+	}
+
+	virtual void doPrintType() {
+		std::cout << "Polygon" << std::endl;
+	}
+
+	virtual void doPrint (const char* name) {
+		std::cout << name << " (Polygon)" << std::endl;
+
+		std::cout << "mVerticeCount = " << mVerticeCount << std::endl;
+		unsigned int i;
+		for (i = 0; i < mVerticeCount; i ++) {
+			std::cout << i << " = " << mVertices[i][0] << ", " <<
+				mVertices[i][1] << ", " <<
+				mVertices[i][2] << std::endl;
+		}
+		std::cout << "mPosition = " << mPosition[0] <<", " <<
+			mPosition[1] << ", " <<
+			mPosition[2] << std::endl;
+
+		std::cout << "mVelocity = " << mVelocity[0] <<", " <<
+			mVelocity[1] << ", " <<
+			mVelocity[2] << std::endl;
+
+		std::cout << "mAngle = " << mAngle << std::endl;
+		std::cout << "mAngleVelocity = " << mAngleVelocity << std::endl;
+	}
+
+	unsigned int getVerticeCount () {
+		return mVerticeCount;
+	}
+
+	vector3d& getVertice (unsigned int i) {
+		assert (i >= 0 && i < mVerticeCount);
+		return mVertices [i];
+	}
+
+	void setVertice (unsigned int i, const vector3d &vertice) {
+		assert (i >= 0 && i < mVerticeCount);
+		mVertices[i] = vertice;
+	}
+
+	friend int check_collision_polygon_sphere(Shape *polygon_a,
+			Shape *sphere_b, CollisionInfo* info);
+};
+
+class Sphere: public Shape {
+private:
+	float mRadius;
+public:
+	Sphere (float radius) {
+		mRadius = radius;
+		Shape::setPosition (vector3d (0., 0., 0.));
+	}
+
+	Sphere(float radius, const vector3d &position) {
+		mRadius = radius;
+		Shape::setPosition(position);
+	}
+
+	Sphere (const Sphere &sphere):
+		Shape (sphere),
+		mRadius (sphere.mRadius) { }
+
+	virtual Sphere* getCopy() {
+		Sphere* copy = new Sphere (*this);
+
+		return copy;
+	}
+
+	virtual void doPrintType() {
+		std::cout << "Sphere" << std::endl;
+	}
+
+	virtual void doPrint (const char* name) {
+		std::cout << name << " (Sphere)" << std::endl;
+
+		std::cout << "mRadius = " << mRadius << std::endl;
+		std::cout << "mPosition = " << mPosition[0] <<", " <<
+			mPosition[1] << ", " <<
+			mPosition[2] << std::endl;
+
+		std::cout << "mVelocity = " << mVelocity[0] <<", " <<
+			mVelocity[1] << ", " <<
+			mVelocity[2] << std::endl;
+
+		std::cout << "mAngle = " << mAngle << std::endl;
+		std::cout << "mAngleVelocity = " << mAngleVelocity << std::endl;
+	}
+
+
+	void setRadius (float radius) {
+		mRadius = radius;
+	}
+
+	float getRadius () {
+		return mRadius;
+	}
+
+	friend int check_collision_polygon_sphere(Shape *polygon_a,
+			Shape *sphere_b, CollisionInfo* info);
+};
+
+/** \brief The higher level function to call for collision detection
+ *
+ * \param stepsize   the timestep within we want to check for the collision 
+ * \param shape_a    first shape
+ * \param shape_b    second shape
+ * \param info       information about the collision will be to info
+ *
+ * \returns 0 - no collision, negative on error, positive on collision
+ */
+int check_collision(float timestep, Shape *shape_a, Shape *shape_b, CollisionInfo* info);
+
+/** \brief The higher level function to call for collision detection
+ *
+ * \param shape_a    first shape
+ * \param shape_b    second shape
+ * \param velocity_b relative velocity of b to a
+ * \param info       information about the collision will be to info
+ *
+ * \returns 0 - no collision, negative on error, positive on collision
+ */
+int check_collision_rel(float timestep, Shape *shape_a, Shape *shape_b, vector3d *velocity_b,
+		CollisionInfo* info);
+
+/** \brief Callback signature for the check functions */
+typedef int (*check_cb)(float timestep, Shape *shape_a, Shape *shape_b,	CollisionInfo* info);
+
+/** \brief Returns the check functions which performs the checks depending
+ * on their types. */
+check_cb get_check(Shape *shape_a, Shape *shape_b);
+
+/** \brief Performs a check between a polygon and a sphere
+ */
+int check_collision_polygon_sphere(float timestep, Shape *shape_a, Shape *shape_b,
+		CollisionInfo* info);
+
+/** \brief Performs a check between a sphere and a sphere
+ */
+int check_collision_sphere_sphere(float timestep, Shape *shape_a, Shape *shape_b,
+		CollisionInfo* info);
+
+
+/** \brief Calculates the time it takes for a point to touch a plane
+ *
+ * \param normal   normal vector of the plane
+ * \param plane_point point on the vector
+ * \param point    point that is moving
+ * \param velocity velocity of the point
+ *
+ * \returns -1 if point is moving away from the plane (or is below and
+ *                moves even further below
+ *          >= 0 if point is moving along the plane or towards the plane
+ *
+ * This function depends on the scale of velocity. It is assumed
+ * that velocity represents the displacement in one frame. In this
+ * case a return value > 1 means there will not be a contact
+ * within this frame.
+ */
+float calculate_contact_plane_point(vector3d &normal, vector3d &plane_point, vector3d &point, vector3d &velocity);
+
+}
+
+#endif /* _COLL2D_H */

engine/libraries/coll2d/include/coll2d_errors.h

@@ -0,0 +1,9 @@
+#ifndef _COLL2D_ERRORS
+#define _COLL2D_ERRORS
+
+#define CHECK_ERROR_UNKNOWN -9999
+#define CHECK_ERROR_NOT_IMPLEMENTED -1
+#define CHECK_ERROR_INVALID_TYPES -2
+#define CHECK_ERROR_OVERLAP -3
+
+#endif /* _COLL2D_ERRORS */

engine/libraries/coll2d/src/coll2d.cc

@@ -0,0 +1,572 @@
+#include <cstring>
+#include<coll2d.h>
+
+#include <iostream>
+
+using namespace std;
+
+namespace coll2d {
+
+int check_collision (float timestep, Shape *shape_a, Shape *shape_b, CollisionInfo *info) {
+	check_cb check = NULL;
+
+	check = get_check (shape_a, shape_b);
+
+	if ( check == NULL ) {
+		return CHECK_ERROR_NOT_IMPLEMENTED;
+	}
+
+	return check (timestep, shape_a, shape_b, info);
+};
+
+check_cb get_check (Shape *shape_a, Shape *shape_b) {
+	if ( (dynamic_cast<Polygon*> (shape_a) != NULL)
+			&& (dynamic_cast<Sphere*> (shape_b) != NULL) ) {
+		return check_collision_polygon_sphere;
+	}
+	else if ( (dynamic_cast<Polygon*> (shape_b) != NULL)
+			&& (dynamic_cast<Sphere*> (shape_a) != NULL) ) {
+		return check_collision_polygon_sphere;
+	}	else if ( (dynamic_cast<Sphere*> (shape_b) != NULL)
+			&& (dynamic_cast<Sphere*> (shape_a) != NULL) ) {
+		return check_collision_sphere_sphere;
+	}
+
+	return NULL;
+}
+
+int check_collision_rel (float timestep, Shape *shape_a, Shape *shape_b, vector3d *velocity_b, CollisionInfo *info) {
+	check_cb check = NULL;
+
+	shape_b->setVelocity (*velocity_b);
+	check = get_check (shape_a, shape_b);
+
+	if ( check == NULL ) {
+		return CHECK_ERROR_NOT_IMPLEMENTED;
+	}
+
+	return check (timestep, shape_a, shape_b, info);
+};
+
+/** \brief calculates the time for a moving point to touch a plane
+ *
+ * \param normal      The normal of the plane
+ * \param plane_point a point on the plane
+ * \param point       the moving point
+ * \param velocity    the velocity of the point
+ *
+ * \returns If the return value is negative, the point is moving away from the
+ * plane or is below the plane and thus does not touch it. Otherwise 
+ *   point + (return value) * velocity
+ * is on the plane.
+ */
+float calculate_contact_plane_point (vector3d &normal, vector3d &plane_point, vector3d &point, vector3d &velocity) {
+	vector3d temp_vector (point);
+	temp_vector -= plane_point;
+
+	// If the following is < 0 then the point is "below" the plane
+	if (normal * temp_vector < 0) {
+		// If the following is < 0 then we move even deeper
+		if ( normal * velocity < 0 )
+			return -999;
+		// Or towards the upper side of the plane.
+		else
+			return -111;
+	}
+
+	int i,imax = -1;
+	float vmax = 0.;
+	for (i = 0; i < 3; i++) {
+		if ( normal[i] * velocity[i] < vmax) {
+			vmax = normal[i] * velocity[i];
+			imax = i;
+		}
+	}
+
+	if (imax == -1) {
+		return -1.;
+	}
+
+	return (normal[imax] * plane_point[imax] - normal[imax] * point[imax]) / vmax;
+}
+
+// #define VERBOSE_PHASE
+
+/** \brief Checks whether a sphere penetrates one of the polygones edges
+ *
+ * This check only finds intersections of the sphere with one of the sides in
+ * other words it will not find intersections with the vertices. As for convex
+ * polygons a sphere will either touch one of the edges or one of the
+ * vertices.
+ *
+ * First thing we do is calculate the normals pointing out of the polygon.
+ * Then for each edge e of the polygon (is being done by the function
+ * calculate_contatc_plane_point (...):
+ * - Calculate the point that would be the first to touch edge e if a contact
+ *   occurs
+ * - Calculate the time it would take for this point to touch the edge with
+ *   the relative velocity of the sphere
+ *
+ * Next we calculatefor each edge the point on the sphere which would be the first to touch
+ * the polygon, if it was moving towards the current edge.
+ */
+int check_collision_polygon_sphere_sides (Shape *shape_a, Shape *shape_b, CollisionInfo *info) {
+	Polygon* polygon = dynamic_cast<Polygon*> (shape_a);
+	Sphere* sphere = dynamic_cast<Sphere*> (shape_b);
+
+	if ( polygon == NULL && sphere == NULL) {
+		polygon = dynamic_cast<Polygon*> (shape_b);
+		sphere = dynamic_cast<Sphere*> (shape_a);
+	}
+
+	if (!polygon || !sphere) {
+		return CHECK_ERROR_INVALID_TYPES;
+	}
+
+	vector3d velocity_sphere = sphere->getVelocity();
+	
+	vector3d temp_vector (velocity_sphere);
+	if (temp_vector.length2() == 0.)
+		return 0;
+
+	// Calculate the normals pointing OUT of the polygon
+	float *t = NULL, t_min = 10000.;
+	unsigned int i,j,vertices,count = 0;
+	vertices = polygon->getVerticeCount();
+	vector3d *normals = NULL;
+	vector3d side (0., 0., 0.);
+	vector3d up (0., 1., 0.);
+/*
+	if (polygon->getPosition().length() > 0.) {
+		for (i = 0; i < vertices; i++) {
+			polygon->getVertice(i) += polygon->getPosition();
+		}
+	}
+*/
+	// normals contains all the normal vectors out of
+	// the polygon
+	normals = new vector3d[vertices];
+	// The array t contains the time it takes until the sphere
+	// would touch the plane with the given velocity
+	t = new float[vertices];
+
+	for (i = 0; i < vertices; i++) {
+		j = (i + 1) % vertices;
+		side = polygon->getVertice(j);
+		side -= polygon->getVertice(i);
+		normals[i] = cross_product (side, up);
+		normals[i] /= normals[i].length ();
+
+		// temp_vector is the point on the sphere that would touch the plane first
+		// if it was directly moving towards it
+		temp_vector = normals[i];
+		temp_vector *= - sphere->getRadius();
+		temp_vector += sphere->getPosition();
+
+		t[i] = calculate_contact_plane_point (normals[i], polygon->getVertice(i), temp_vector, velocity_sphere);
+
+#ifdef VERBOSE_PHASE
+		cout << "= next =" << endl;
+		cout << "t[" << i << "] = " << t[i] << " normal = "; normals[i].print ();
+		cout << "point       = "; temp_vector.print();
+		cout << "plane point = "; polygon->getVertice(i).print();
+#endif
+		if (t[i] < 0)
+			normals[i].setValues (0., 0., 0.);
+		else {
+			if (t[i] < t_min)
+				t_min = t[i];
+			count ++;
+		}
+	}
+
+	if (count == 0) {
+		delete[] t;
+		delete[] normals;
+		return 0;
+	}
+
+	vector3d contact_point, cp_near;
+
+	/// \ToDo: Instead of checking all planes, remember which ones to check
+	for (i = 0; i < vertices; i++) {
+		if ( t[i] >= 0) {
+			// So there seems to occur an collision. Now we have to check,
+			// whether this is actually between the points that define the
+			// plane.
+			unsigned int min_distance_vertex_index = i, other_vertice = (i + 1) % vertices;
+			float min_distance;
+			j = (i + 1) % vertices;
+			// First we calculate the actual contact point:
+			temp_vector = normals[i];
+			temp_vector *= - sphere->getRadius();
+			temp_vector *= t[i];
+			temp_vector += sphere->getPosition();
+
+			contact_point = normals[i];
+			contact_point *= -sphere->getRadius();
+			contact_point += temp_vector;
+
+			// Now we calculate to which vertice this point is closer:
+			temp_vector = contact_point;
+			temp_vector -= polygon->getVertice(i);
+			min_distance = temp_vector.length2 ();
+
+			temp_vector = contact_point;
+			temp_vector -= polygon->getVertice(j);
+
+			if (min_distance > temp_vector.length2 ()) {
+				min_distance_vertex_index = j;
+				other_vertice = i;
+			}
+
+			// Then we want to see, whether the contact point actually lies
+			// on the vector that goes from one vertice to the other. For
+			// this we calculate (cp - near) * (far - near). The value
+			// cannot be greater than 1. (otherwise we would have picked
+			// the other vector as near. If it is < 0 then it is outside
+			// of the polygon.
+			temp_vector = polygon->getVertice(other_vertice);
+			temp_vector -= polygon->getVertice(min_distance_vertex_index);
+
+			temp_vector /= temp_vector.length();
+
+			cp_near = contact_point;
+			cp_near -= polygon->getVertice(min_distance_vertex_index);
+
+			float val = cp_near * temp_vector;
+			if ( (val >= 0 && val <= 1) && (t[i] <= 1.)) {
+				info->time = t[i];
+				info->normal = normals[i];
+
+				info->point = sphere->getPosition();
+				info->point += sphere->getVelocity() * t[i];
+				info->point -= normals[i] * sphere->getRadius ();
+
+				delete[] t;
+				delete[] normals;
+				return 1;
+			}
+		}
+	}
+
+	/*
+	if ( (t_min <= 1.) && (t_min >= 0.)) {
+		return 1;
+	}
+	*/
+
+	delete[] t;
+	delete[] normals;
+
+	if (t_min > 1.)
+		return 0;
+
+	return 0;
+//	return CHECK_ERROR_UNKNOWN;
+};
+
+int check_collision_polygon_sphere_vertices (Shape *shape_a, Shape *shape_b, CollisionInfo *info) {
+	Polygon* polygon = dynamic_cast<Polygon*> (shape_a);
+	Sphere* sphere = dynamic_cast<Sphere*> (shape_b);
+
+	if ( polygon == NULL && sphere == NULL) {
+		polygon = dynamic_cast<Polygon*> (shape_b);
+		sphere = dynamic_cast<Sphere*> (shape_a);
+	}
+
+	if (!polygon || !sphere) {
+		return CHECK_ERROR_INVALID_TYPES;
+	}
+
+	// Transform global velocities to relative velocities:
+	/*
+	sphere->setVelocity (sphere->getVelocity() - polygon->getVelocity());
+*/
+	vector3d velocity_sphere = sphere->getVelocity();
+	
+	vector3d temp_vector (velocity_sphere);
+	if (temp_vector.length2() == 0.) {
+#ifdef VERBOSE_PHASE
+		cout << "sphere has no velocity!" << endl;
+#endif
+		return 0;
+	}
+
+	vector3d contact_point, cp_near;
+
+	// Okay if we happen to be here, there still might be one of
+	// the corners colliding with the sphere.
+	float a, b, c, t1, t2, t_min = 10000;
+	unsigned int i, j, vertices;
+	vector3d position (sphere->getPosition());
+	vector3d velocity (sphere->getVelocity());
+	float radius = sphere->getRadius();
+	vertices = polygon->getVerticeCount();
+
+	for (i = 0; i < vertices; i++) {
+		vector3d vertice (polygon->getVertice(i));
+		a = b = c = 0;
+		
+		// We must ensure that all happens in the x-z-plane (so y == 0.)
+		vertice[1] = 0.;
+		position[1] = 0.;
+
+		vector3d distance_sphere_vertice;
+		for (j = 0; j < 3; j++) {
+			distance_sphere_vertice[j] = position[j] - vertice[j];
+		}
+#ifdef VERBOSE_PHASE
+		cout << "  ===== " << endl;
+		cout << "vertice = ";
+		vertice.print ();
+		velocity.print ();
+		position.print ();
+		cout << "radius = " << radius << endl;
+		cout << "distance = " << distance_sphere_vertice.length () << endl;;
+#endif
+		for (j = 0; j < 3; j++) {
+			a += velocity[j]*velocity[j];
+			b += 2 * velocity[j] * (position[j] - vertice[j]);
+			c += position[j] * position[j] - 2 * position[j] * vertice[j] + vertice[j] * vertice[j]; 
+		}
+		c -= radius * radius;
+
+		if (solve_quadratic (a, b, c, &t1, &t2)) {
+//			cout << "solve_quadratic = " << t1 << "\t" << t2 << endl;
+			float t_temp_min = t2;
+			if (t1 < t2)
+				t_temp_min = t1;
+
+			if (t_temp_min < t_min) {
+				if ((t_temp_min <= 1.) && (t_temp_min >= 0.)) {
+					t_min = t_temp_min;
+					temp_vector = position;
+					temp_vector -= vertice;
+					temp_vector /= temp_vector.length ();
+#ifdef VERBOSE_PHASE
+					cout << "new closest point t = " << t_min << endl;
+#endif				
+					info->time = t_min;
+					info->normal = temp_vector;
+					info->point = vertice;
+				}
+			}
+		}
+	}
+
+	if ( (t_min <= 1.) && (t_min >= 0.)) {
+		return 1;
+	}
+
+	if (t_min > 1.)
+		return 0;
+
+	return CHECK_ERROR_UNKNOWN;
+};
+
+int check_collision_polygon_sphere (float timestep, Shape *shape_a, Shape *shape_b, CollisionInfo *info) {
+	/* If the first shape given is a sphere and the second one a shape, we have
+	 * to remember it to set the right value to *info.
+	 */
+	bool swapped = false;
+	Polygon* polygon_cast_test = dynamic_cast<Polygon*> (shape_a);
+	Sphere* sphere_cast_test = dynamic_cast<Sphere*> (shape_b);
+
+	if ( polygon_cast_test == NULL && sphere_cast_test == NULL) {
+		polygon_cast_test = dynamic_cast<Polygon*> (shape_b);
+		sphere_cast_test = dynamic_cast<Sphere*> (shape_a);
+
+		swapped = true;
+	}
+	
+	if (!polygon_cast_test || !sphere_cast_test) {
+		return CHECK_ERROR_INVALID_TYPES;
+	}
+
+	Polygon polygon_copy (*polygon_cast_test);
+	Sphere sphere_copy (*sphere_cast_test);
+	
+	unsigned int vertices;
+	vertices = polygon_copy.getVerticeCount();
+
+#ifdef VERBOSE_PHASE
+	cout << "======== New Polygon Sphere Test: Phase 1" << endl;
+	if (swapped)
+		cout << "Swapped!" << endl;
+	cout << "Polygon position: ";
+	polygon_copy.getPosition().print ();
+	cout << "Polygon velocity: ";
+	polygon_copy.getVelocity().print ();
+	cout << "Sphere position: ";
+	sphere_copy.getPosition().print ();
+	cout << "Sphere velocity: ";
+	sphere_copy.getVelocity().print ();
+	cout << "Timestep       : " << timestep << endl;
+
+	cout << "Vertices before transformation = " << endl;
+	int i;
+	for (i = 0; i < vertices; i++) {
+		polygon_copy.getVertice(i).print();
+	}
+#endif
+
+	// Here we translate the polygon and its velocity into the reference frame
+	// of the polygon.
+	sphere_copy.setPosition (sphere_copy.getPosition() - polygon_copy.getPosition());
+	sphere_copy.setPosition (sphere_copy.getPosition().rotate_y (-polygon_copy.getAngle()));
+	// Here scale the velocity so that our time horizon lies in [0., 1.]
+	sphere_copy.setVelocity ((sphere_copy.getVelocity() - polygon_copy.getVelocity() ) * timestep );
+	sphere_copy.setVelocity (sphere_copy.getVelocity().rotate_y (-polygon_copy.getAngle()));
+
+#ifdef VERBOSE_PHASE
+	cout << "Vertices after transformation = " << endl;
+	for (i = 0; i < vertices; i++) {
+		polygon_copy.getVertice(i).print();
+	}
+#endif
+
+#ifdef VERBOSE_PHASE
+	cout << "After transformation:" << endl;
+	cout << "Polygon position: ";
+	polygon_copy.getPosition().print ();
+	cout << "Polygon velocity: ";
+	polygon_copy.getVelocity().print ();
+	cout << "Sphere position: ";
+	sphere_copy.getPosition().print ();
+	cout << "Sphere velocity: ";
+	sphere_copy.getVelocity().print ();
+#endif
+
+	CollisionInfo sides_info;
+	CollisionInfo vertices_info;
+	int sides_result = 0, vertices_result = 0;
+
+	/* Tricky part: Since polygons are assumed to be convex and we calculated
+	 * with both methods a collision, we take the sides result. Since they are
+	 * convex the first event to happen is the collision with the side.
+	 * Otherwise it would first touch the vertice and then the side, which is
+	 * not possible. (\Todo true?)
+	 */
+
+	sides_result = check_collision_polygon_sphere_sides (&polygon_copy, &sphere_copy, &sides_info);
+	// We have to transform the time back to [0., timestep]
+	sides_info.time *= timestep;
+#ifdef VERBOSE_PHASE
+	cout << "sides_result = " << sides_result << " t = " << sides_info.time << endl;
+#endif	
+	if (sides_result > 0) {
+		sides_info.point.rotate_y (polygon_copy.getAngle());
+		sides_info.normal.rotate_y (polygon_copy.getAngle());
+		sides_info.point += polygon_copy.getPosition();
+		memcpy (info, &sides_info, sizeof (CollisionInfo));
+		sides_info.time *= timestep;
+		if (swapped == true) {
+			info->reference_shape = 1;
+		} else {
+			info->reference_shape = 0;
+		}
+		return sides_result;
+	} 
+
+	vertices_result = check_collision_polygon_sphere_vertices (&polygon_copy, &sphere_copy, &vertices_info);
+	// We have to transform the time back to [0., timestep]
+	vertices_info.time *= timestep;
+#ifdef VERBOSE_PHASE
+	cout << "vertices_res = " << vertices_result << " t = " << vertices_info.time << endl;
+	cout << "vertices_point = ";
+	vertices_info.point.print();
+#endif
+	if (vertices_result > 0) {
+		vertices_info.point.rotate_y (polygon_copy.getAngle());
+		vertices_info.normal.rotate_y (polygon_copy.getAngle());
+		vertices_info.point += polygon_copy.getPosition();
+		memcpy (info, &vertices_info, sizeof (CollisionInfo));
+		if (swapped == true) {
+			info->reference_shape = 1;
+		} else {
+			info->reference_shape = 0;
+		}
+		return vertices_result;
+	}
+
+	if ((sides_result == 0) && (vertices_result == 0))
+		return 0;
+
+	return CHECK_ERROR_UNKNOWN;
+};
+
+int check_collision_sphere_sphere (float timestep, Shape *shape_a, Shape *shape_b, CollisionInfo *info) {
+	/* If the first shape given is a sphere and the second one a shape, we have
+	 * to remember it to set the right value to *info.
+	 */
+	Sphere* sphere_test_a = dynamic_cast<Sphere*> (shape_a);
+	Sphere* sphere_test_b = dynamic_cast<Sphere*> (shape_b);
+
+	if (!sphere_test_a || !sphere_test_b) {
+		return CHECK_ERROR_INVALID_TYPES;
+	}
+
+	Sphere sphere_a (*sphere_test_a);
+	Sphere sphere_b (*sphere_test_b);
+
+	// First we check whether there is actually a relative velocity towards each
+	// other:
+	vector3d rel_velocity = sphere_b.getVelocity ();
+	rel_velocity -= sphere_a.getVelocity ();
+	rel_velocity *= timestep;
+	if (rel_velocity.length2() == 0.)
+		return 0;
+
+	vector3d rel_position = sphere_b.getPosition ();
+	rel_position -= sphere_a.getPosition ();
+
+	// We need to ignore height differences
+	rel_position[1] = 0.;
+	rel_velocity[1] = 0.;
+
+	vector3d rel_position_norm = rel_position;
+	rel_position_norm.normalize ();
+
+	float velocity_projection = rel_position_norm * rel_velocity;
+	float distance = rel_position.length();
+
+	if (velocity_projection >= 0.) 
+		return 0;
+
+	float t = (- distance +  sphere_a.getRadius () + sphere_b.getRadius ()) / velocity_projection;
+
+#ifdef VERBOSE_PHASE
+	cout << "==== New Sphere Sphere Test ====" << endl;
+	cout << "Relative Position = ";
+	rel_position.print ();
+	cout << "Relative Velocity = ";
+	rel_velocity.print ();
+	cout << "velocity_projection = " << velocity_projection << endl;
+	cout << "distance = " << distance << endl;
+	cout << "- distance + Ra + Rb = " << - distance + sphere_a.getRadius () + sphere_b.getRadius () << endl;
+	cout << "t = " << t << endl;
+#endif
+
+	// if t < 0 this means we would have to move back in time
+	// to get to the point where the two spheres touched. In other words: they
+	// are overlapping, hence it is an invalid state!
+	if (t < 0)
+		return CHECK_ERROR_OVERLAP;
+	if (t > 1)
+		return 0;
+
+	info->point = sphere_a.getPosition() + rel_position_norm * t;
+	info->time = t * timestep;
+
+	if (sphere_a.getVelocity().length2() == 0.) {
+		info->normal = rel_position_norm;
+		info->reference_shape = 0;
+	} else {
+		info->normal = rel_position_norm * -1.;
+		info->reference_shape = 1;
+	}
+	return 1;
+};
+
+}

engine/libraries/coll2d/tests/CMakeLists.txt

@@ -0,0 +1,51 @@
+PROJECT (ENGINETESTS)
+
+CMAKE_MINIMUM_REQUIRED (VERSION 2.6)
+
+# Needed for UnitTest++
+LIST( APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/../CMake )
+
+SET ( TESTS_SRCS
+	main.cc
+	general.cc
+	polygon_sphere.cc
+	sphere_sphere.cc
+	)
+
+FIND_PACKAGE (UnitTest++)
+
+INCLUDE_DIRECTORIES ( ../mathlib/ )
+
+SET_TARGET_PROPERTIES ( ${PROJECT_EXECUTABLES} PROPERTIES
+  LINKER_LANGUAGE CXX
+)
+
+IF ( UNITTEST++_FOUND )
+
+	ADD_EXECUTABLE ( coll2dtests ${TESTS_SRCS} )
+
+  INCLUDE_DIRECTORIES ( ${UNITTEST++_INCLUDE_DIR} )
+
+	SET_TARGET_PROPERTIES ( coll2dtests PROPERTIES
+		LINKER_LANGUAGE CXX
+		OUTPUT_NAME runtests 
+		)
+
+	TARGET_LINK_LIBRARIES ( coll2dtests
+			${UNITTEST++_LIBRARY}
+			mathlib
+			coll2d
+		)
+		
+	OPTION (RUN_AUTOMATIC_TESTS "Perform automatic tests after compilation?" OFF)
+
+	IF (RUN_AUTOMATIC_TESTS)
+	ADD_CUSTOM_COMMAND (TARGET coll2dtests
+		POST_BUILD
+		COMMAND coll2dtests
+		COMMENT "Running automated tests..."
+		)
+	ENDIF (RUN_AUTOMATIC_TESTS)
+
+ENDIF ( UNITTEST++_FOUND )
+

engine/libraries/coll2d/tests/general.cc

@@ -0,0 +1,284 @@
+#include <UnitTest++.h>
+
+#include <coll2d.h>
+
+using namespace coll2d;
+using namespace std;
+
+TEST ( SphereCopyConstructer ) {
+	Sphere sphere_a (123.);
+	sphere_a.setVelocity (vector3d(1., 2., 3.));
+
+	Sphere sphere_b (sphere_a);
+	CHECK_EQUAL (sphere_a.getRadius (), sphere_b.getRadius ());
+
+	vector3d velocity_a = sphere_a.getVelocity ();
+	vector3d velocity_b = sphere_b.getVelocity ();
+
+	CHECK (velocity_a == velocity_b );
+
+	sphere_b.setVelocity (vector3d (0., 0., 0.));
+
+	velocity_a = sphere_a.getVelocity ();
+	velocity_b = sphere_b.getVelocity ();
+
+	CHECK (velocity_a != velocity_b );
+}
+
+TEST ( PolygonCopyConstructer ) {
+	Polygon polygon_a (3);
+
+	vector3d vertice0 (-1., 0., -1.);
+	vector3d vertice1 (1., 0., -1.);
+	vector3d vertice2 (0., 0., 1.);
+
+	polygon_a.setVertice (0, vertice0);
+	polygon_a.setVertice (1, vertice1);
+	polygon_a.setVertice (2, vertice2);
+
+	polygon_a.setVelocity (vector3d(1., 2., 3.));
+
+	Polygon polygon_b (polygon_a);
+
+	vector3d velocity_a = polygon_a.getVelocity ();
+	vector3d velocity_b = polygon_b.getVelocity ();
+
+	CHECK (vertice0 == polygon_b.getVertice (0));
+	CHECK (vertice1 == polygon_b.getVertice (1));
+	CHECK (vertice2 == polygon_b.getVertice (2));
+
+	polygon_b.setVelocity (vector3d (0., 0., 0.));
+	velocity_a = polygon_a.getVelocity ();
+	velocity_b = polygon_b.getVelocity ();
+	
+	CHECK (velocity_a != velocity_b );
+}
+
+/** Checks whether we identify the different shapes
+ * correctly.
+ */
+TEST ( CheckShapeType ) {
+	vector3d sphere_position (0., 0., 0.);
+
+	Shape* polygon = new Polygon (0, NULL);
+	Shape* sphere = new Sphere (0, sphere_position);
+
+	Shape* cast_test = NULL;
+
+	cast_test = dynamic_cast <Sphere*> ( sphere );
+	CHECK_EQUAL (cast_test, sphere);
+	cast_test = dynamic_cast <Sphere*> ( polygon );
+	CHECK (cast_test ==  NULL );
+	cast_test = dynamic_cast <Polygon*> (polygon);
+	CHECK_EQUAL (cast_test, polygon);
+	cast_test = dynamic_cast <Polygon*> (sphere);
+	CHECK (cast_test == NULL );
+
+	delete polygon;
+	delete sphere;
+}
+
+/** Checks whether the right check function is chosen
+ */
+TEST ( CheckGetCheck ) {
+	vector3d sphere_position (0., 0., 0.);
+
+	Shape* polygon = new Polygon (0, NULL);
+	Shape* sphere = new Sphere (0, sphere_position);
+
+	check_cb check = NULL;
+
+	// polygon - sphere -> polygon_sphere
+	check = get_check (polygon, sphere);
+	CHECK (static_cast<check_cb> (check) == static_cast<check_cb> (check_collision_polygon_sphere));
+
+	// sphere - polygon -> polygon_sphere
+	check = get_check (sphere, polygon);
+	CHECK (static_cast<check_cb> (check) == static_cast<check_cb> (check_collision_polygon_sphere));
+
+	// and we do not want that the pointers have changed!
+	// (as it used to be in previous versions)
+	CHECK (dynamic_cast <Polygon*> (sphere) == NULL);
+	CHECK (dynamic_cast <Sphere*> (polygon) == NULL);
+
+	check = get_check (sphere, sphere);
+	CHECK (check == check_collision_sphere_sphere);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckErrorNotImplemented ) {
+	Shape* polygon = new Polygon (0, NULL);
+	vector3d velocity (0., 0., 0.);
+
+	CollisionInfo info;
+	int result = check_collision_rel (1., polygon, polygon, &velocity, &info);
+
+	CHECK (result == CHECK_ERROR_NOT_IMPLEMENTED);
+
+	delete polygon;
+}
+
+TEST ( CheckCalculateContactPlanePoint ) {
+	vector3d normal (1., 0., 0.);
+	vector3d plane_point (0., 0., 0.);
+	vector3d point (1., 0., 0.);
+	vector3d velocity (-1., 0., 0);
+
+	float result;
+
+	// Directly moving towards the plane
+	result = calculate_contact_plane_point (normal, plane_point, point, velocity);
+	CHECK_EQUAL (1, result);
+
+	// Moving with a slight angle onto the plane
+	velocity.setValues (-1., 0., 0.2);
+	result = calculate_contact_plane_point (normal, plane_point, point, velocity);
+	CHECK_EQUAL (1, result);
+
+	velocity.setValues (-1., 0., 0.);
+
+	// Point is "below" the plane and moves even deeper
+	plane_point.setValues (2., 0., 0);
+	result = calculate_contact_plane_point (normal, plane_point, point, velocity);
+	CHECK_EQUAL (-999, result);
+
+	// Point is "below" but moves towards the plane
+	velocity.setValues (1., 0., 0);
+	result = calculate_contact_plane_point (normal, plane_point, point, velocity);
+	CHECK_EQUAL (-111, result);
+}
+
+TEST ( CheckCollisionStepsize ) {
+	vector3d normal (1., 0., 0.);
+	vector3d plane_point (0., 0., 0.);
+	vector3d point (1., 0., 0.);
+	vector3d velocity (-1., 0., 0);
+
+	float result;
+
+	// Directly moving towards the plane
+	result = calculate_contact_plane_point (normal, plane_point, point, velocity);
+	CHECK_EQUAL (1, result);
+
+	// Moving with a slight angle onto the plane
+	velocity.setValues (-1., 0., 0.2);
+	result = calculate_contact_plane_point (normal, plane_point, point, velocity);
+	CHECK_EQUAL (1, result);
+
+	velocity.setValues (-1., 0., 0.);
+
+	// Point is "below" the plane and moves even deeper
+	plane_point.setValues (2., 0., 0);
+	result = calculate_contact_plane_point (normal, plane_point, point, velocity);
+	CHECK_EQUAL (-999, result);
+
+	// Point is "below" but moves towards the plane
+	velocity.setValues (1., 0., 0);
+	result = calculate_contact_plane_point (normal, plane_point, point, velocity);
+	CHECK_EQUAL (-111, result);
+}
+
+/* Here we test, whether the value of info.reference_shape is correct.
+ * If we swap the shapes passed to check_collision, then the value must swap,
+ * too.
+ */
+TEST ( CheckReferenceShapeValue ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	// first part of the test, the collision occurs 
+	// on an edge
+	vector3d sphere_position (2.3, 0., 0.);
+	Shape* sphere = new Sphere (1, sphere_position);
+	sphere->setVelocity (vector3d (-1., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0, info.reference_shape);
+
+	result = check_collision (1., sphere, polygon, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (1, info.reference_shape);
+
+	// here the collision occurs on a vertice
+	sphere->setPosition (vector3d (1.5, 0., -2.5));
+	sphere->setVelocity (vector3d (0., 0., 1.));
+
+	result = check_collision (1., sphere, polygon, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (1, info.reference_shape);
+
+	result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0, info.reference_shape);
+
+	delete sphere;
+	delete polygon;
+}
+
+/* Test whether Polygon::getCopy() does what it should */
+TEST ( CheckPolygonGetCopy ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Polygon* polygon = new Polygon (4, vertices);
+	Polygon* polygon_copy = polygon->getCopy();
+
+	CHECK (polygon != polygon_copy);
+	CHECK_EQUAL (polygon->getVerticeCount(), polygon_copy->getVerticeCount());
+
+	unsigned int i, count;
+	count = polygon->getVerticeCount ();
+
+	for (i = 0; i < count; i ++) {
+		vector3d vertice = polygon->getVertice (i);
+		vector3d vertice_copy = polygon_copy->getVertice (i);
+
+		int j;
+		for (j = 0; j < 3; j++) {
+			CHECK_EQUAL (vertice[j], vertice_copy[j]);
+		}
+	}
+
+	delete polygon;
+	delete polygon_copy;
+}
+
+/* Test whether Sphere::getCopy() does what it should */
+TEST ( CheckSphereGetCopy ) {
+	Sphere* sphere = new Sphere (1.23);
+	Sphere* sphere_copy = sphere->getCopy();
+
+	CHECK_EQUAL (sphere->getRadius(), sphere_copy->getRadius());
+	CHECK (sphere != sphere_copy);
+
+	delete sphere;
+	delete sphere_copy;
+}
+
+TEST ( SphereSetGetRadius ) {
+	Sphere sphere (123.);
+	CHECK_EQUAL (123, sphere.getRadius());
+
+	sphere.setRadius (456.);
+	CHECK_EQUAL (456, sphere.getRadius());
+}
+
+

engine/libraries/coll2d/tests/main.cc

@@ -0,0 +1,6 @@
+#include <UnitTest++.h>
+
+int main (int argc, char *argv[])
+{
+	return UnitTest::RunAllTests ();
+}

engine/libraries/coll2d/tests/polygon_sphere.cc

@@ -0,0 +1,544 @@
+#include <UnitTest++.h>
+
+#include <coll2d.h>
+
+using namespace coll2d;
+using namespace std;
+
+TEST ( CheckErrorInvalidTypes ) {
+	Shape* polygon = new Polygon (0, NULL);
+	vector3d velocity (0., 0., 0.);
+	vector3d sphere_position (2.1, 0., 0.);
+	Shape* sphere = new Sphere (1, sphere_position);
+	sphere->setVelocity (vector3d(0., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_polygon_sphere (1., sphere, sphere, &info);
+	CHECK (result == CHECK_ERROR_INVALID_TYPES);
+
+	result = check_collision_polygon_sphere (1., polygon, polygon, &info);
+	CHECK (result == CHECK_ERROR_INVALID_TYPES);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereNoVelocity ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., -1.);
+	vertices[1].setValues (1., 0., -1.);
+	vertices[2].setValues (1., 0., 1.);
+	vertices[3].setValues (-1., 0., 1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (2.1, 0., 0.);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (0., 0., 0.);
+
+	CollisionInfo info;
+	int result = check_collision_rel (1., polygon, sphere, &velocity, &info);
+
+	CHECK (result >= 0);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereDiverging ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (2.1, 0., 0.);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (1., 0., 0.);
+
+	CollisionInfo info;
+	int result = check_collision_rel (1., polygon, sphere, &velocity, &info);
+
+	CHECK (result >= 0);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereContact ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (2., 0., 0.);
+	Shape* sphere = new Sphere (1, sphere_position);
+	sphere->setVelocity (vector3d (-1., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK (result > 0);
+	CHECK_EQUAL (0.0, info.time);
+	CHECK_EQUAL (1., info.normal[0]);
+	CHECK_EQUAL (0., info.normal[1]);
+	CHECK_EQUAL (0., info.normal[2]);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereColliding ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (2.5, 0., 0.1);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (-1., 0., 0.);
+
+	CollisionInfo info;
+	int result = check_collision_rel (1., polygon, sphere, &velocity, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereCollidingTop ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (0., 0., 2.5);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (0., 0., -1.);
+
+	CollisionInfo info;
+	int result = check_collision_rel (1., polygon, sphere, &velocity, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereCollidingNonPerpendicular ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (0., 0., 2.5);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (0.01, 0., -1.);
+
+	CollisionInfo info;
+	int result = check_collision_rel (1., polygon, sphere, &velocity, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereCollidingCorner) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position ( 1.5, 0., 2.5);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (0.0, 0., -1.);
+
+	CollisionInfo info;
+	int result = check_collision_rel (1., polygon, sphere, &velocity, &info);
+
+	CHECK_EQUAL (1, result);
+
+	delete polygon;
+	delete sphere;
+}
+
+// In this test we make sure, that the z value of both the polygon and the
+// sphere get ignored:
+TEST ( CheckCollisionPolygonSphereCollidingCornerIgnoreHeight) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position ( 1.5, 10., 2.5);
+	Shape* sphere = new Sphere (1, sphere_position);
+	sphere->setVelocity (vector3d (0., 0., -1.));
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+
+	vertices[0].setValues (-1., -10., 1.);
+	vertices[1].setValues (1., -10., 1.);
+	vertices[2].setValues (1., -10., -1.);
+	vertices[3].setValues (-1., -10., -1.);
+
+	sphere->setPosition (vector3d (1.5, 0., 2.5));
+	result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereCollidingCornerTop) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (1.5, 0., - 2.5);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (0., 0., 1.);
+
+	CollisionInfo info;
+	int result = check_collision_rel (1., polygon, sphere, &velocity, &info);
+
+	CHECK_EQUAL (1, result);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereCollidingCornerNeighbour) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., -0.99);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (1.5 , 0., - 2.5);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (0., 0., 1.);
+
+	CollisionInfo info;
+	check_collision_rel (1., polygon, sphere, &velocity, &info);
+
+	CHECK (info.point == vertices[2]);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereNonCollidingSetPosition ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (2.5, 0., 0.1);
+	Shape* sphere = new Sphere (1, sphere_position);
+	sphere->setPosition (vector3d (35, 0, 0));
+	vector3d velocity (-1., 0., 0.);
+
+	CollisionInfo info;
+	int result = check_collision_rel (1., polygon, sphere, &velocity, &info);
+
+	CHECK_EQUAL (0, result);
+
+	delete polygon;
+	delete sphere;
+}
+
+// In this test we set the velocity of the polygon instead of the
+// sphere.
+TEST ( CheckCollisionPolygonSphereCollidingPolygonSetVelocity ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (2.5, 0., 0.);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (1., 0., 0.);
+	polygon->setVelocity (velocity);
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckSetGetAngle ) {
+	Shape* polygon = new Polygon (0, NULL);
+
+	polygon->setAngle (0.1234567);
+
+	CHECK (fabs (0.1234567 - polygon->getAngle ()) < 1.0e-7);
+
+	delete polygon;
+}
+
+TEST ( CheckCollisionPolygonSphereDiamond ) {
+	vector3d vertices[4];
+	float sqrt2 = sqrt (2);
+
+	vertices[0].setValues (-sqrt2, 0., 0.);
+	vertices[1].setValues (0., 0., sqrt2);
+	vertices[2].setValues (sqrt2, 0., 0.);
+	vertices[3].setValues (0., 0., -sqrt2);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	Shape* sphere = new Sphere (1., vector3d (sqrt2 + 1.5, 0., 0.));
+	sphere->setVelocity (vector3d (-1., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK (fabs (0.5 - info.time) <= 1.0e-6);
+	CHECK_EQUAL (0, info.reference_shape);
+	
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckPolygonSpherePassingBy ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (1., 0., 2.5);
+	Shape* sphere = new Sphere (1, sphere_position);
+	sphere->setVelocity (vector3d (-2., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (0, result);
+
+	delete sphere;
+	delete polygon;
+}
+
+TEST ( CheckCollisionPolygonSphereReturnValuePoint ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+	polygon->setPosition (vector3d (sqrt (2), 0., - sqrt (2)));
+	polygon->setAngle (M_PI * 0.25);
+
+	Shape* sphere = new Sphere (1, vector3d (-sqrt(2) * 0.5, 0., sqrt (2) * 0.5));
+	sphere->setVelocity (vector3d (sqrt (2), 0., -sqrt(2)));
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK ( fabs (0.5 - info.time) < 1.0e-6);
+	CHECK ( (info.point - vector3d (sqrt (2) * 0.5, 0., -sqrt(2) * 0.5)).length() < 1.0e-6 );
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereReturnValuePointTranslated ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+	polygon->setPosition (vector3d (sqrt (2) + 1., 0., - sqrt (2) - 1.));
+	polygon->setAngle (M_PI * 0.25);
+
+	Shape* sphere = new Sphere (1, vector3d (-sqrt(2) * 0.5 + 1., 0., sqrt (2) * 0.5 -1.));
+	sphere->setVelocity (vector3d (sqrt (2), 0., -sqrt(2)));
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK ( fabs (0.5 - info.time) < 1.0e-6);
+	CHECK ( (info.point - vector3d (sqrt (2) * 0.5 + 1, 0., -sqrt(2) * 0.5 - 1.)).length() < 1.0e-6 );
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereReturnValuePointVerticeTranslated ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+	polygon->setPosition (vector3d (0. + 2., 0., - sqrt (2) - 1.5));
+	polygon->setAngle (M_PI * 0.25);
+
+	Shape* sphere = new Sphere (1, vector3d (0. + 2., 0., 0.));
+	sphere->setVelocity (vector3d (0. , 0., -1.));
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK ( fabs (0.5 - info.time) < 1.0e-6);
+	CHECK ( (info.point - vector3d (0. + 2., 0., -1.5)).length() < 1.0e-6 );
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereReferenceShapePolygon ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+	polygon->setPosition (vector3d (0., 0., 0.));
+	polygon->setVelocity (vector3d (1., 0., 0.));
+
+	Shape* sphere = new Sphere (1, vector3d (2.5, 0., 0.));
+	sphere->setVelocity (vector3d (0., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK ( fabs (0.5 - info.time) < 1.0e-6);
+	CHECK_EQUAL ( 0, info.reference_shape );
+	
+	polygon->setPosition (vector3d (0., 0., 0.));
+	polygon->setVelocity (vector3d (1., 0., 0.));
+	sphere->setPosition (vector3d (2.5, 0., 0.));
+	sphere->setVelocity (vector3d (0., 0., 0.));
+
+	result = check_collision (1., sphere, polygon, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK ( fabs (0.5 - info.time) < 1.0e-6);
+	CHECK_EQUAL ( 1, info.reference_shape );
+
+
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckCollisionPolygonSphereTimestep ) {
+	vector3d vertices[4];
+
+	vertices[0].setValues (-1., 0., 1.);
+	vertices[1].setValues (1., 0., 1.);
+	vertices[2].setValues (1., 0., -1.);
+	vertices[3].setValues (-1., 0., -1.);
+
+	Shape* polygon = new Polygon (4, vertices);
+
+	vector3d sphere_position (2.5, 0., 0.1);
+	Shape* sphere = new Sphere (1, sphere_position);
+
+	vector3d velocity (-1., 0., 0.);
+	sphere->setVelocity (velocity);
+
+	CollisionInfo info;
+	int result;
+	result = check_collision (1., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+
+	result = check_collision (2., polygon, sphere, &info);
+
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+
+	result = check_collision (0.499, polygon, sphere, &info);
+	CHECK_EQUAL (0, result);
+
+	delete polygon;
+	delete sphere;
+}
+
+

engine/libraries/coll2d/tests/sphere_sphere.cc

@@ -0,0 +1,245 @@
+#include <UnitTest++.h>
+
+#include <coll2d.h>
+
+using namespace coll2d;
+using namespace std;
+
+TEST ( CheckSphereSphereInvalidTypes ) {
+	Shape* polygon = new Polygon (0, NULL);
+	vector3d velocity (0., 0., 0.);
+	vector3d sphere_position (2.1, 0., 0.);
+	Shape* sphere = new Sphere (1, sphere_position);
+	sphere->setVelocity (vector3d(0., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., polygon, sphere, &info);
+	CHECK (result == CHECK_ERROR_INVALID_TYPES);
+	
+	delete polygon;
+	delete sphere;
+}
+
+TEST ( CheckSphereSphereNoVelocity ) {
+	Shape* sphere_a = new Sphere (1., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1, vector3d (4., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (0, result);
+	
+	delete sphere_a;
+	delete sphere_b;
+}
+
+/* This tests whether we report a collision time of 0.0 when two spheres are
+ * in contact with each other
+ */
+TEST ( CheckCollisionSphereSphereContact ) {
+	Shape* sphere_a = new Sphere (1., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1, vector3d (2., 0., 0.));
+
+	sphere_b->setVelocity (vector3d(-1., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+
+	CHECK (result >= 0);
+	CHECK_EQUAL (0.0, info.time);
+
+	delete sphere_a;
+	delete sphere_b;
+}
+
+TEST ( CheckSphereSphereDiverging ) {
+	Shape* sphere_a = new Sphere (1., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1, vector3d (4., 0., 0.));
+
+	sphere_b->setVelocity (vector3d (1., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (0, result);
+	
+	delete sphere_a;
+	delete sphere_b;
+}
+
+TEST ( CheckSphereSphereCollision ) {
+	Shape* sphere_a = new Sphere (1., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1, vector3d (3., 0., 0.));
+
+	sphere_b->setVelocity (vector3d (-1., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (1, result);
+	
+	delete sphere_a;
+	delete sphere_b;
+}
+
+TEST ( CheckSphereSphereCollisionCheckOrder ) {
+	Shape* sphere_a = new Sphere (1., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1, vector3d (3., 0., 0.));
+
+	sphere_a->setVelocity (vector3d (1., 0., 0.));
+	sphere_b->setVelocity (vector3d (-1.5, 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (1, result);
+
+	vector3d normal = info.normal;
+	result = check_collision_sphere_sphere (1., sphere_b, sphere_a, &info);
+	CHECK_EQUAL (1, result);
+
+	CHECK ( normal[0] == -info.normal[0]);
+	CHECK ( normal[1] == -info.normal[1]);
+	CHECK ( normal[2] == -info.normal[2]);
+	
+	delete sphere_a;
+	delete sphere_b;
+}
+
+TEST ( CheckSphereSphereNoCollision ) {
+	Shape* sphere_a = new Sphere (1., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1, vector3d (3., 0., 0.));
+
+	sphere_b->setVelocity (vector3d (-0.9, 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (0, result);
+	
+	delete sphere_a;
+	delete sphere_b;
+}
+
+TEST ( CheckSphereSphereCollisionResult ) {
+	Shape* sphere_a = new Sphere (1., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1, vector3d (2.5, 0., 0.));
+
+	sphere_b->setVelocity (vector3d (-1, 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+	
+	delete sphere_a;
+	delete sphere_b;
+}
+
+TEST ( CheckSphereSphereMovingNonHorizontal ) {
+	Shape* sphere_a = new Sphere (3., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1.5, vector3d (3., 0., 4.));
+
+	sphere_a->setVelocity (vector3d (3./5., 0., 4./5.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	
+	vector3d result_normal = vector3d (-3., 0., -4.).normalize();
+	vector3d collision_point = result_normal * -0.5;
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+	CHECK_EQUAL (1, info.reference_shape);
+	CHECK (result_normal == info.normal);
+	CHECK (collision_point == info.point);
+
+	sphere_a->setVelocity (vector3d (0., 0., 0.));
+	
+	sphere_b->setVelocity (vector3d (-3./5., 0., -4./5.));
+	result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+	
+	delete sphere_a;
+	delete sphere_b;
+}
+
+/* If there is one of the sphere non moving we must ensure that we
+ * set the moving one as the incidence shape.
+ */
+TEST ( CheckSphereSphereReferenceShape ) {
+	Shape* sphere_a = new Sphere (3., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1.5, vector3d (3., 0., 4.));
+
+	sphere_a->setVelocity (vector3d (3./5., 0., 4./5.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	
+	vector3d result_normal = vector3d (-3., 0., -4.).normalize();
+	vector3d collision_point = result_normal * 0.5;
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (0.5, info.time);
+	CHECK (result_normal == info.normal);
+	CHECK_EQUAL (1, info.reference_shape);
+
+	sphere_a->setVelocity (vector3d (0., 0., 0.));
+	
+	sphere_b->setVelocity (vector3d (-3./5., 0., -4./5.));
+	result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (1, result);
+	CHECK (result_normal * -1. == info.normal);
+	CHECK_EQUAL (0.5, info.time);
+	CHECK_EQUAL (0, info.reference_shape);
+	
+	delete sphere_a;
+	delete sphere_b;
+}
+
+TEST ( CheckSphereSphereIgnoreHeight ) {
+	Shape* sphere_a = new Sphere (1., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1, vector3d (3., 0., 0.));
+
+	sphere_b->setVelocity (vector3d (-2., 0., 0.));
+
+	sphere_a->setPosition (vector3d (0., 10., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (1, result);
+	
+	delete sphere_a;
+	delete sphere_b;
+}
+
+TEST ( CheckSphereSphereCollisionTimestep ) {
+	Shape* sphere_a = new Sphere (1., vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (1, vector3d (3., 0., 0.));
+
+	sphere_b->setVelocity (vector3d (-1., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (1, result);
+	CHECK_EQUAL (1, info.time);
+	
+	result = check_collision_sphere_sphere (2., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (1., result);
+	CHECK_EQUAL (1., info.time);
+	
+	result = check_collision_sphere_sphere (0.5, sphere_a, sphere_b, &info);
+	CHECK_EQUAL (0, result);
+		
+	delete sphere_a;
+	delete sphere_b;
+}
+
+TEST ( CheckPerpendicularMovement ) {
+	Shape* sphere_a = new Sphere (0.4, vector3d (0., 0., 0.));
+	Shape* sphere_b = new Sphere (0.4, vector3d (0., 0., -1.));
+
+	sphere_a->setVelocity (vector3d (0., 0., 0.));
+	sphere_b->setVelocity (vector3d (5., 0., 0.));
+
+	CollisionInfo info;
+	int result = check_collision_sphere_sphere (1., sphere_a, sphere_b, &info);
+	CHECK_EQUAL (0, result);
+
+	delete sphere_a;
+	delete sphere_b;
+}

engine/libraries/mathlib/CMakeLists.txt

@@ -0,0 +1,10 @@
+PROJECT (MATHLIB CXX)
+
+LIST ( APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/ )
+
+SET ( SRCS
+	mathlib.cc
+	main.cc
+	)
+
+ADD_LIBRARY ( mathlib mathlib.cc mathlib.h)

engine/libraries/mathlib/mathlib.cc

@@ -0,0 +1,224 @@
+#include <iostream>
+#include <sstream>
+#include <math.h>
+#include <assert.h>
+
+#include "mathlib.h"
+
+using namespace std;
+
+#ifdef WIN32
+
+void sincos (float rad, double *s, double *c){
+	*s = sin (rad);
+	*c = cos (rad);
+}
+
+#endif
+
+vector3d::vector3d ()
+{
+	values[0] = 0.;
+	values[1] = 0.;
+	values[2] = 0.;
+}
+
+vector3d::vector3d (float u, float v, float w)
+{
+	values[0] = u;
+	values[1] = v;
+	values[2] = w;
+}
+
+vector3d::vector3d (const vector3d &vec)
+{
+	values[0] = vec.values[0];
+	values[1] = vec.values[1];
+	values[2] = vec.values[2];
+}
+
+vector3d vector3d::operator=(const vector3d &vec) {
+	if (this != &vec) {
+		values[0] = vec.values[0];
+		values[1] = vec.values[1];
+		values[2] = vec.values[2];
+	}
+	return *this;
+}
+
+vector3d::~vector3d ()
+{
+}
+
+#ifndef MATHLIB_INLINE
+vector3d vector3d::operator* (const float &f)
+{
+  return vector3d (values[0] * f, values[1] * f, values[2] * f);
+}
+
+vector3d vector3d::operator/ (const float &f)
+{
+  return vector3d (values[0] / f, values[1] / f, values[2] / f);
+}
+
+void vector3d::operator*= (const float &f)
+{
+	values[0] *= f;
+	values[1] *= f;
+	values[2] *= f;
+}
+
+void vector3d::operator/= (const float &f)
+{
+	values[0] /= f;
+	values[1] /= f;
+	values[2] /= f;
+}
+
+float vector3d::operator* (const vector3d &vec)
+{
+  return values[0] * vec.values[0] + values[1] * vec.values[1] + values[2] * vec.values[2];
+}
+
+vector3d vector3d::operator+ (const vector3d &vec)
+{
+  return vector3d (values[0] + vec.values[0], values[1] + vec.values[1], values[2] + vec.values[2]);
+}
+
+vector3d vector3d::operator- (const vector3d &vec)
+{
+  return vector3d (values[0] - vec.values[0], values[1] - vec.values[1], values[2] - vec.values[2]);
+}
+
+void vector3d::operator+= (const vector3d &vec)
+{
+  values[0] += vec.values[0];
+  values[1] += vec.values[1];
+  values[2] += vec.values[2];
+}
+
+void vector3d::operator-= (const vector3d &vec)
+{
+  values[0] -= vec.values[0];
+  values[1] -= vec.values[1];
+  values[2] -= vec.values[2];
+}
+
+bool vector3d::operator== (const vector3d &vec)
+{
+  if ( (values[0]==vec.values[0]) && (values[1]==vec.values[1]) && (values[2]==vec.values[2]) )
+    return true;
+  return false;
+}
+
+bool vector3d::operator!= (const vector3d &vec)
+{
+	return ! (operator==(vec));
+}
+
+vector3d vector3d::cross (const vector3d &vec)
+{
+  return vector3d (values[1] * vec.values[2] - values[2] * vec.values[1],
+      values[2] * vec.values[0] - values[0] * vec.values[2],
+      values[0] * vec.values[1] - values[1] * vec.values[0]);
+}
+
+float vector3d::length2 ()
+{
+  return values[0]*values[0] + values[1]*values[1] + values[2]*values[2];
+}
+
+float vector3d::length ()
+{
+  return sqrt (values[0]*values[0] + values[1]*values[1] + values[2]*values[2]);
+}
+#endif
+
+vector3d& vector3d::rotate_x (float angle)
+{
+ 	vector3d old (*this);
+	double s,c;
+	sincos (angle, &s, &c);
+
+	values[0] = old[0];
+	values[1] = c * old[1] - s * old[2];
+	values[2] = s * old[1] + c * old[2];
+
+ 	return *this;
+}
+
+vector3d& vector3d::rotate_y (float angle)
+{
+	vector3d old (*this);
+	double s,c;
+	sincos (angle, &s, &c);
+
+	values[0] = c * old[0] + s * old[2];
+	values[1] = old[1];
+	values[2] =	- s * old[0] + c * old[2];
+
+	return *this;
+}
+
+vector3d& vector3d::rotate_z (float angle)
+{
+ 	vector3d old (*this);
+	double s,c;
+	sincos (angle, &s, &c);
+
+	values[0] = c * old[0] + -s * old[1];
+	values[1] = s * old[0] + c * old[1];
+	values[2] = old[2];
+
+	return *this;
+}
+
+vector3d& vector3d::normalize () {
+	float norm = length ();
+	values [0] /= norm;
+	values [1] /= norm;
+	values [2] /= norm;
+
+	return *this;
+}
+
+void vector3d::print ()
+{
+  std::cout << values[0] << " " << values[1] << " " << values[2] << std::endl;
+}
+
+void vector3d::print (const char *str)
+{
+  std::cout << str << values[0] << " " << values[1] << " " << values[2] << std::endl;
+}
+
+vector3d cross_product (vector3d &a, vector3d &b) {
+	return a.cross (b);
+}
+
+inline bool point_within (vector3d *a, vector3d *b, vector3d *point);
+
+vector3d integrate_rk45 (float t, vector3d& ydot, vector3d& y)
+{
+  vector3d k1 = ydot * t;
+  vector3d k2 = (ydot + k1 / 2) * t;
+  vector3d k3 = (ydot + k2 / 2 ) * t;
+  vector3d k4 = (ydot + k3) * t;
+
+  return y + (k1 + k2 * 2 + k3 * 2 + k4) / 6;
+}
+
+vector3d integrate (float t, vector3d& ydot, vector3d& y)
+{
+  return integrate_rk45 (t, ydot, y);
+}
+
+int solve_quadratic (float a, float b, float c, float *x1, float *x2) {
+	if (b*b - 4 * a * c < 0)
+		return 0;
+	*x1 = static_cast<float> ((-b + sqrt (b*b - 4 * a * c)) / (2 * a));
+	*x2 = static_cast<float> ((-b - sqrt (b*b - 4 * a * c)) / (2 * a));
+
+	return 1;
+}
+

engine/libraries/mathlib/mathlib.h

@@ -0,0 +1,179 @@
+#ifndef __MATHLIB_H
+#define __MATHLIB_H
+
+#include <iostream>
+#include <cmath>
+#include <assert.h>
+
+#ifdef WIN32
+
+#define M_PI 3.14159265
+void sincos (float rad, double *s, double *c);
+
+#endif
+
+#define MATHLIB_INLINE
+
+struct vector3d
+{
+	float values[3];
+
+	vector3d ();
+	vector3d (float u, float v, float w);
+	vector3d (const vector3d &vec);
+	vector3d operator= (const vector3d &vec);
+	~vector3d ();
+
+	// Setter and getter
+	inline void setValues (float u, float v, float w) {
+		values[0] = u;
+		values[1] = v;
+		values[2] = w;
+	}
+
+	inline float& operator[] (const int index) {
+		assert (index >= 0);
+		assert (index <= 3);
+
+		return values[index];
+	}
+
+	vector3d operator* (const float &f);
+	vector3d operator/ (const float &f);
+	void operator*= (const float &f);
+	void operator/= (const float &f);
+
+	float operator* (const vector3d &vec);
+	vector3d operator+ (const vector3d &vec);
+	vector3d operator- (const vector3d &vec);
+	void operator+= (const vector3d &vec);
+	void operator-= (const vector3d &vec);
+	bool operator== (const vector3d &vec);
+	bool operator!= (const vector3d &vec);
+	vector3d cross (const vector3d &vec);
+
+	float length2 ();
+	float length ();
+	float get_angle () {
+		return atan2 (values[1], values[0]);
+	}
+
+	vector3d &rotate_x (float angle);
+	vector3d &rotate_y (float angle);
+	vector3d &rotate_z (float angle);
+	vector3d &normalize ();
+
+	void print ();
+	void print (const char* str);
+};
+
+#ifdef MATHLIB_INLINE
+
+inline
+vector3d vector3d::operator* (const float &f)
+{
+  return vector3d (values[0] * f, values[1] * f, values[2] * f);
+}
+
+inline
+vector3d vector3d::operator/ (const float &f)
+{
+  return vector3d (values[0] / f, values[1] / f, values[2] / f);
+}
+
+inline
+void vector3d::operator*= (const float &f)
+{
+	values[0] *= f;
+	values[1] *= f;
+	values[2] *= f;
+}
+
+inline
+void vector3d::operator/= (const float &f)
+{
+	values[0] /= f;
+	values[1] /= f;
+	values[2] /= f;
+}
+
+inline
+float vector3d::operator* (const vector3d &vec)
+{
+  return values[0] * vec.values[0] + values[1] * vec.values[1] + values[2] * vec.values[2];
+}
+
+inline
+vector3d vector3d::operator+ (const vector3d &vec)
+{
+  return vector3d (values[0] + vec.values[0], values[1] + vec.values[1], values[2] + vec.values[2]);
+}
+
+inline
+vector3d vector3d::operator- (const vector3d &vec)
+{
+  return vector3d (values[0] - vec.values[0], values[1] - vec.values[1], values[2] - vec.values[2]);
+}
+
+inline
+void vector3d::operator+= (const vector3d &vec)
+{
+  values[0] += vec.values[0];
+  values[1] += vec.values[1];
+  values[2] += vec.values[2];
+}
+
+inline
+void vector3d::operator-= (const vector3d &vec)
+{
+  values[0] -= vec.values[0];
+  values[1] -= vec.values[1];
+  values[2] -= vec.values[2];
+}
+
+inline
+bool vector3d::operator== (const vector3d &vec)
+{
+  if ( (values[0]==vec.values[0]) && (values[1]==vec.values[1]) && (values[2]==vec.values[2]) )
+    return true;
+  return false;
+}
+
+inline
+bool vector3d::operator!= (const vector3d &vec)
+{
+	return ! (operator==(vec));
+}
+
+inline
+vector3d vector3d::cross (const vector3d &vec)
+{
+  return vector3d (values[1] * vec.values[2] - values[2] * vec.values[1],
+      values[2] * vec.values[0] - values[0] * vec.values[2],
+      values[0] * vec.values[1] - values[1] * vec.values[0]);
+}
+
+inline
+float vector3d::length2 ()
+{
+  return values[0]*values[0] + values[1]*values[1] + values[2]*values[2];
+}
+
+inline
+float vector3d::length ()
+{
+  return sqrt (values[0]*values[0] + values[1]*values[1] + values[2]*values[2]);
+}
+#endif
+
+vector3d cross_product (vector3d &a, vector3d &b);
+
+inline bool point_within (vector3d *a, vector3d *b, vector3d *point);
+
+vector3d integrate_rk45 (float t,vector3d& ydot, vector3d& y);
+
+vector3d integrate (float t, vector3d& ydot, vector3d& y);
+
+int solve_quadratic (float a, float b, float c, float *x1, float *x2);
+
+#endif /* __MATHLIB_H */

engine/libraries/oglft/AUTHORS

@@ -0,0 +1,5 @@
+Authors of OGLFT
+
+Allen Barnett
+Oliver Bock
+Nigel Stewart

engine/libraries/oglft/CMake/FindFreeType2.cmake

@@ -0,0 +1,28 @@
+# Tries to find FREETYPE2 (http://freetype2.bespin.org) a simple and fast 
+# network library by Lee Salzman
+#
+
+SET (FREETYPE2_FOUND FALSE)
+
+FIND_PATH (FREETYPE2_INCLUDE_DIR freetype/freetype.h /usr/include/ /usr/local/include/ /usr/include/freetype2 /usr/local/include/freetype2 $ENV{FREETYPE2_PATH}/include $ENV{FREETYPE2_INCLUDE_PATH})
+
+FIND_LIBRARY (FREETYPE2_LIBRARIES NAMES freetype PATHS /usr/lib /usr/local/lib $ENV{FREETYPE2_PATH} $ENV{FREETYPE2_PATH}/lib ENV{FREETYPE2_LIBRARY_PATH})
+
+IF (FREETYPE2_INCLUDE_DIR AND FREETYPE2_LIBRARIES)
+	SET (FREETYPE2_FOUND TRUE)
+ENDIF (FREETYPE2_INCLUDE_DIR AND FREETYPE2_LIBRARIES)
+
+IF (FREETYPE2_FOUND)
+   IF (NOT FREETYPE2_FIND_QUIETLY)
+      MESSAGE(STATUS "Found FREETYPE2: ${FREETYPE2_LIBRARIES}")
+   ENDIF (NOT FREETYPE2_FIND_QUIETLY)
+ELSE (FREETYPE2_FOUND)
+   IF (FREETYPE2_FIND_REQUIRED)
+      MESSAGE(FATAL_ERROR "Could not find FREETYPE2")
+   ENDIF (FREETYPE2_FIND_REQUIRED)
+ENDIF (FREETYPE2_FOUND)
+
+MARK_AS_ADVANCED (
+	FREETYPE2_INCLUDE_DIR
+	FREETYPE2_LIBRARIES
+	)

engine/libraries/oglft/CMakeLists.txt

@@ -0,0 +1,63 @@
+project( OGLFT )
+
+CMAKE_MINIMUM_REQUIRED (VERSION 2.6)
+
+Set( CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMake )
+
+FIND_PACKAGE( OpenGL REQUIRED )
+FIND_PACKAGE( FreeType2 REQUIRED )
+
+if( ENABLE_QT )
+  find_package( Qt REQUIRED )
+  if( DESIRED_QT_VERSION EQUAL 3 )
+    find_package( KDE3 REQUIRED )
+  endif( DESIRED_QT_VERSION EQUAL 3 )
+endif( ENABLE_QT )
+
+if( ENABLE_GLE )
+  find_package( GLE )
+endif( ENABLE_GLE )
+
+#
+# Test to determine if we want the "tripledot" (variable) form of the GLU tesselator callback.
+#
+if(NOT GLU_TESS_CALLBACK_TRIPLEDOT)
+    if(WIN32 OR CMAKE_SYSTEM_NAME MATCHES "Linux")
+        # Skip the compile check for platforms that never need the variable form
+        set(DEFAULT_GLU_TESS_CALLBACK_TRIPLEDOT false)
+    else(WIN32 OR CMAKE_SYSTEM_NAME MATCHES "Linux")
+        # For other platforms perform the check
+        include(CheckCXXSourceCompiles)
+        include(CheckIncludeFiles)
+        set(CMAKE_REQUIRED_INCLUDES ${OPENGL_INCLUDE_DIR})
+        set(CMAKE_REQUIRED_LIBRARIES ${OPENGL_LIBRARY})
+        check_include_files(OpenGL/gl.h HAVE_OPENGL_DIR)
+        if(HAVE_OPENGL_DIR)
+                set(OPENGL_DIR_PREFIX "OpenGL")
+        else(HAVE_OPENGL_DIR)
+                set(OPENGL_DIR_PREFIX "GL")
+        endif(HAVE_OPENGL_DIR)
+        set(GLUTESS_TEST_SOURCE "
+                #include <${OPENGL_DIR_PREFIX}/gl.h>
+                #include <${OPENGL_DIR_PREFIX}/glu.h>
+                typedef GLvoid (*GLUTessCallback)(...);
+                static void testcb(GLvoid *, void*) { }
+                int main() {
+                  GLUtesselator *t = gluNewTess();
+                  gluTessCallback(t, GLU_TESS_VERTEX_DATA, GLUTessCallback(testcb));
+                  return 0;
+                }
+                ")
+        check_cxx_source_compiles("${GLUTESS_TEST_SOURCE}" GLU_Tesselator_Needs_Variable_Parameter_Callback_Convention_Failure_Means_No)
+        set(GLU_TESS_CALLBACK_TRIPLEDOT ${GLU_Tesselator_Needs_Variable_Parameter_Callback_Convention_Failure_Means_No})
+    endif(WIN32 OR CMAKE_SYSTEM_NAME MATCHES "Linux")
+endif(NOT GLU_TESS_CALLBACK_TRIPLEDOT)
+
+add_subdirectory( liboglft )
+
+set( BUILD_OGLFT_TESTS OFF CACHE BOOL "Build oglft tests." )
+
+if( BUILD_OGLFT_TESTS )
+  enable_testing()
+  add_subdirectory( tests )
+endif( BUILD_OGLFT_TESTS )

engine/libraries/oglft/COPYING

@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year  name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.

engine/libraries/oglft/COPYING.LIB

@@ -0,0 +1,504 @@
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+  This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it.  You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
+strategy to use in any particular case, based on the explanations below.
+
+  When we speak of free software, we are referring to freedom of use,
+not price.  Our General Public Licenses are designed to make sure that
+you have the freedom to distribute copies of free software (and charge
+for this service if you wish); that you receive source code or can get
+it if you want it; that you can change the software and use pieces of
+it in new free programs; and that you are informed that you can do
+these things.
+
+  To protect your rights, we need to make restrictions that forbid
+distributors to deny you these rights or to ask you to surrender these
+rights.  These restrictions translate to certain responsibilities for
+you if you distribute copies of the library or if you modify it.
+
+  For example, if you distribute copies of the library, whether gratis
+or for a fee, you must give the recipients all the rights that we gave
+you.  You must make sure that they, too, receive or can get the source
+code.  If you link other code with the library, you must provide
+complete object files to the recipients, so that they can relink them
+with the library after making changes to the library and recompiling
+it.  And you must show them these terms so they know their rights.
+
+  We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
+permission to copy, distribute and/or modify the library.
+
+  To protect each distributor, we want to make it very clear that
+there is no warranty for the free library.  Also, if the library is
+modified by someone else and passed on, the recipients should know
+that what they have is not the original version, so that the original
+author's reputation will not be affected by problems that might be
+introduced by others.
+
+  Finally, software patents pose a constant threat to the existence of
+any free program.  We wish to make sure that a company cannot
+effectively restrict the users of a free program by obtaining a
+restrictive license from a patent holder.  Therefore, we insist that
+any patent license obtained for a version of the library must be
+consistent with the full freedom of use specified in this license.
+
+  Most GNU software, including some libraries, is covered by the
+ordinary GNU General Public License.  This license, the GNU Lesser
+General Public License, applies to certain designated libraries, and
+is quite different from the ordinary General Public License.  We use
+this license for certain libraries in order to permit linking those
+libraries into non-free programs.
+
+  When a program is linked with a library, whether statically or using
+a shared library, the combination of the two is legally speaking a
+combined work, a derivative of the original library.  The ordinary
+General Public License therefore permits such linking only if the
+entire combination fits its criteria of freedom.  The Lesser General
+Public License permits more lax criteria for linking other code with
+the library.
+
+  We call this license the "Lesser" General Public License because it
+does Less to protect the user's freedom than the ordinary General
+Public License.  It also provides other free software developers Less
+of an advantage over competing non-free programs.  These disadvantages
+are the reason we use the ordinary General Public License for many
+libraries.  However, the Lesser license provides advantages in certain
+special circumstances.
+
+  For example, on rare occasions, there may be a special need to
+encourage the widest possible use of a certain library, so that it becomes
+a de-facto standard.  To achieve this, non-free programs must be
+allowed to use the library.  A more frequent case is that a free
+library does the same job as widely used non-free libraries.  In this
+case, there is little to gain by limiting the free library to free
+software only, so we use the Lesser General Public License.
+
+  In other cases, permission to use a particular library in non-free
+programs enables a greater number of people to use a large body of
+free software.  For example, permission to use the GNU C Library in
+non-free programs enables many more people to use the whole GNU
+operating system, as well as its variant, the GNU/Linux operating
+system.
+
+  Although the Lesser General Public License is Less protective of the
+users' freedom, it does ensure that the user of a program that is
+linked with the Library has the freedom and the wherewithal to run
+that program using a modified version of the Library.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.  Pay close attention to the difference between a
+"work based on the library" and a "work that uses the library".  The
+former contains code derived from the library, whereas the latter must
+be combined with the library in order to run.
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License Agreement applies to any software library or other
+program which contains a notice placed by the copyright holder or
+other authorized party saying it may be distributed under the terms of
+this Lesser General Public License (also called "this License").
+Each licensee is addressed as "you".
+
+  A "library" means a collection of software functions and/or data
+prepared so as to be conveniently linked with application programs
+(which use some of those functions and data) to form executables.
+
+  The "Library", below, refers to any such software library or work
+which has been distributed under these terms.  A "work based on the
+Library" means either the Library or any derivative work under
+copyright law: that is to say, a work containing the Library or a
+portion of it, either verbatim or with modifications and/or translated
+straightforwardly into another language.  (Hereinafter, translation is
+included without limitation in the term "modification".)
+
+  "Source code" for a work means the preferred form of the work for
+making modifications to it.  For a library, complete source code means
+all the source code for all modules it contains, plus any associated
+interface definition files, plus the scripts used to control compilation
+and installation of the library.
+
+  Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running a program using the Library is not restricted, and output from
+such a program is covered only if its contents constitute a work based
+on the Library (independent of the use of the Library in a tool for
+writing it).  Whether that is true depends on what the Library does
+and what the program that uses the Library does.
+  
+  1. You may copy and distribute verbatim copies of the Library's
+complete source code as you receive it, in any medium, provided that
+you conspicuously and appropriately publish on each copy an
+appropriate copyright notice and disclaimer of warranty; keep intact
+all the notices that refer to this License and to the absence of any
+warranty; and distribute a copy of this License along with the
+Library.
+
+  You may charge a fee for the physical act of transferring a copy,
+and you may at your option offer warranty protection in exchange for a
+fee.
+
+  2. You may modify your copy or copies of the Library or any portion
+of it, thus forming a work based on the Library, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) The modified work must itself be a software library.
+
+    b) You must cause the files modified to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    c) You must cause the whole of the work to be licensed at no
+    charge to all third parties under the terms of this License.
+
+    d) If a facility in the modified Library refers to a function or a
+    table of data to be supplied by an application program that uses
+    the facility, other than as an argument passed when the facility
+    is invoked, then you must make a good faith effort to ensure that,
+    in the event an application does not supply such function or
+    table, the facility still operates, and performs whatever part of
+    its purpose remains meaningful.
+
+    (For example, a function in a library to compute square roots has
+    a purpose that is entirely well-defined independent of the
+    application.  Therefore, Subsection 2d requires that any
+    application-supplied function or table used by this function must
+    be optional: if the application does not supply it, the square
+    root function must still compute square roots.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Library,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Library, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote
+it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Library.
+
+In addition, mere aggregation of another work not based on the Library
+with the Library (or with a work based on the Library) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may opt to apply the terms of the ordinary GNU General Public
+License instead of this License to a given copy of the Library.  To do
+this, you must alter all the notices that refer to this License, so
+that they refer to the ordinary GNU General Public License, version 2,
+instead of to this License.  (If a newer version than version 2 of the
+ordinary GNU General Public License has appeared, then you can specify
+that version instead if you wish.)  Do not make any other change in
+these notices.
+
+  Once this change is made in a given copy, it is irreversible for
+that copy, so the ordinary GNU General Public License applies to all
+subsequent copies and derivative works made from that copy.
+
+  This option is useful when you wish to copy part of the code of
+the Library into a program that is not a library.
+
+  4. You may copy and distribute the Library (or a portion or
+derivative of it, under Section 2) in object code or executable form
+under the terms of Sections 1 and 2 above provided that you accompany
+it with the complete corresponding machine-readable source code, which
+must be distributed under the terms of Sections 1 and 2 above on a
+medium customarily used for software interchange.
+
+  If distribution of object code is made by offering access to copy
+from a designated place, then offering equivalent access to copy the
+source code from the same place satisfies the requirement to
+distribute the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  5. A program that contains no derivative of any portion of the
+Library, but is designed to work with the Library by being compiled or
+linked with it, is called a "work that uses the Library".  Such a
+work, in isolation, is not a derivative work of the Library, and
+therefore falls outside the scope of this License.
+
+  However, linking a "work that uses the Library" with the Library
+creates an executable that is a derivative of the Library (because it
+contains portions of the Library), rather than a "work that uses the
+library".  The executable is therefore covered by this License.
+Section 6 states terms for distribution of such executables.
+
+  When a "work that uses the Library" uses material from a header file
+that is part of the Library, the object code for the work may be a
+derivative work of the Library even though the source code is not.
+Whether this is true is especially significant if the work can be
+linked without the Library, or if the work is itself a library.  The
+threshold for this to be true is not precisely defined by law.
+
+  If such an object file uses only numerical parameters, data
+structure layouts and accessors, and small macros and small inline
+functions (ten lines or less in length), then the use of the object
+file is unrestricted, regardless of whether it is legally a derivative
+work.  (Executables containing this object code plus portions of the
+Library will still fall under Section 6.)
+
+  Otherwise, if the work is a derivative of the Library, you may
+distribute the object code for the work under the terms of Section 6.
+Any executables containing that work also fall under Section 6,
+whether or not they are linked directly with the Library itself.
+
+  6. As an exception to the Sections above, you may also combine or
+link a "work that uses the Library" with the Library to produce a
+work containing portions of the Library, and distribute that work
+under terms of your choice, provided that the terms permit
+modification of the work for the customer's own use and reverse
+engineering for debugging such modifications.
+
+  You must give prominent notice with each copy of the work that the
+Library is used in it and that the Library and its use are covered by
+this License.  You must supply a copy of this License.  If the work
+during execution displays copyright notices, you must include the
+copyright notice for the Library among them, as well as a reference
+directing the user to the copy of this License.  Also, you must do one
+of these things:
+
+    a) Accompany the work with the complete corresponding
+    machine-readable source code for the Library including whatever
+    changes were used in the work (which must be distributed under
+    Sections 1 and 2 above); and, if the work is an executable linked
+    with the Library, with the complete machine-readable "work that
+    uses the Library", as object code and/or source code, so that the
+    user can modify the Library and then relink to produce a modified
+    executable containing the modified Library.  (It is understood
+    that the user who changes the contents of definitions files in the
+    Library will not necessarily be able to recompile the application
+    to use the modified definitions.)
+
+    b) Use a suitable shared library mechanism for linking with the
+    Library.  A suitable mechanism is one that (1) uses at run time a
+    copy of the library already present on the user's computer system,
+    rather than copying library functions into the executable, and (2)
+    will operate properly with a modified version of the library, if
+    the user installs one, as long as the modified version is
+    interface-compatible with the version that the work was made with.
+
+    c) Accompany the work with a written offer, valid for at
+    least three years, to give the same user the materials
+    specified in Subsection 6a, above, for a charge no more
+    than the cost of performing this distribution.
+
+    d) If distribution of the work is made by offering access to copy
+    from a designated place, offer equivalent access to copy the above
+    specified materials from the same place.
+
+    e) Verify that the user has already received a copy of these
+    materials or that you have already sent this user a copy.
+
+  For an executable, the required form of the "work that uses the
+Library" must include any data and utility programs needed for
+reproducing the executable from it.  However, as a special exception,
+the materials to be distributed need not include anything that is
+normally distributed (in either source or binary form) with the major
+components (compiler, kernel, and so on) of the operating system on
+which the executable runs, unless that component itself accompanies
+the executable.
+
+  It may happen that this requirement contradicts the license
+restrictions of other proprietary libraries that do not normally
+accompany the operating system.  Such a contradiction means you cannot
+use both them and the Library together in an executable that you
+distribute.
+
+  7. You may place library facilities that are a work based on the
+Library side-by-side in a single library together with other library
+facilities not covered by this License, and distribute such a combined
+library, provided that the separate distribution of the work based on
+the Library and of the other library facilities is otherwise
+permitted, and provided that you do these two things:
+
+    a) Accompany the combined library with a copy of the same work
+    based on the Library, uncombined with any other library
+    facilities.  This must be distributed under the terms of the
+    Sections above.
+
+    b) Give prominent notice with the combined library of the fact
+    that part of it is a work based on the Library, and explaining
+    where to find the accompanying uncombined form of the same work.
+
+  8. You may not copy, modify, sublicense, link with, or distribute
+the Library except as expressly provided under this License.  Any
+attempt otherwise to copy, modify, sublicense, link with, or
+distribute the Library is void, and will automatically terminate your
+rights under this License.  However, parties who have received copies,
+or rights, from you under this License will not have their licenses
+terminated so long as such parties remain in full compliance.
+
+  9. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Library or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Library (or any work based on the
+Library), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Library or works based on it.
+
+  10. Each time you redistribute the Library (or any work based on the
+Library), the recipient automatically receives a license from the
+original licensor to copy, distribute, link with or modify the Library
+subject to these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties with
+this License.
+
+  11. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Library at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Library by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  12. If the distribution and/or use of the Library is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Library under this License may add
+an explicit geographical distribution limitation excluding those countries,
+so that distribution is permitted only in or among countries not thus
+excluded.  In such case, this License incorporates the limitation as if
+written in the body of this License.
+
+  13. The Free Software Foundation may publish revised and/or new
+versions of the Lesser General Public License from time to time.
+Such new versions will be similar in spirit to the present version,
+but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Library
+specifies a version number of this License which applies to it and
+"any later version", you have the option of following the terms and
+conditions either of that version or of any later version published by
+the Free Software Foundation.  If the Library does not specify a
+license version number, you may choose any version ever published by
+the Free Software Foundation.
+
+  14. If you wish to incorporate parts of the Library into other free
+programs whose distribution conditions are incompatible with these,
+write to the author to ask for permission.  For software which is
+copyrighted by the Free Software Foundation, write to the Free
+Software Foundation; we sometimes make exceptions for this.  Our
+decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+			    NO WARRANTY
+
+  15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
+KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
+LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
+AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+           How to Apply These Terms to Your New Libraries
+
+  If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the library's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
+
+

engine/libraries/oglft/ChangeLog

@@ -0,0 +1,432 @@
+2002-07-12  Allen Barnett  <allen@lignumcomputing.com>
+
+	* doc/Doxyfile, configure.ac: Updated to version 0.8.
+
+	* liboglft/OGLFT.cpp:
+	Removed unnecessary default arguments from constructors.
+
+	* tests/Makefile.am: Added extra demo3 header.
+
+	* liboglft/OGLFT.h: Improved the Doxygen comments.
+
+2002-07-11  Allen Barnett  <allen@lignumcomputing.com>
+
+	* doc/documentation.dox: Updated to version 0.8 information.
+
+	* NEWS: Added FreeType version warning.
+
+	* liboglft/OGLFT.cpp: Updated to be compilable by G++ 3.
+
+	Minor improvement of Doxygen comments.
+
+	Added height() method. Returns the "line spacing" of the font.
+
+	Added drawing of formatted numbers.
+
+	Made a couple of changes to support newer versions of FreeType:
+	* A default charmap is not activated if there is no UNICODE map.
+	* Adjust creation of monochrome bitmap to account for even
+	  number of bytes now in FreeType bitmaps.
+
+	Correctly compute the vector size for each auxiliary face:
+	Type1 and TrueType fonts typically have different EM sizes.
+
+	Reverted to tesselating straight lines with one step.
+
+	* liboglft/OGLFT.h: Updated to be compilable by G++ 3.
+
+	Minor improvement of Doxygen comments.
+
+	Added height() method. Returns the "line spacing" of the font.
+
+	Added drawing of formatted numbers.
+
+	* tests/tutorial3.cpp: Updated to be compilable by G++ 3.
+
+	* tests/tutorial2.cpp: Updated to be compilable by G++ 3.
+
+	Also, minor modification to optionally (at compile time) use a
+	scalable representation. And, made it double buffered since that's the
+	only available visual with the Mach64 driver.
+
+	* tests/tutorial1.cpp, tests/speedtest.cpp, tests/demo.cpp:
+	Updated to be compilable by G++ 3.
+
+	* tests/demo3.cpp: Updated to be compilable by G++ 3.
+
+	Added example of number formatting.
+
+	* tests/demo2.cpp: Updated to be compilable by G++ 3.
+
+	* tests/Demo3UnicodeExample.h: Added GPL header.
+
+	* tests/Demo3UnicodeExample2.h: Initial checkin.
+
+	* README: Improved Qt project instructions.
+
+	* configure.ac: Updated version number.
+
+	* tests/tests.pro, OGLFT.pro, liboglft/liboglft.pro: Initial checkin.
+
+	* README, NEWS: Added new features for version 0.8.
+
+2002-07-11  Allen Barnett  <allen@lignumcomputing.com>
+
+	* doc/documentation.dox: Updated to version 0.8 information.
+
+	* NEWS: Added FreeType version warning.
+
+	* liboglft/OGLFT.cpp: Updated to be compilable by G++ 3.
+
+	Minor improvement of Doxygen comments.
+
+	Added height() method. Returns the "line spacing" of the font.
+
+	Added drawing of formatted numbers.
+
+	Made a couple of changes to support newer versions of FreeType:
+	* A default charmap is not activated if there is no UNICODE map.
+	* Adjust creation of monochrome bitmap to account for even
+	  number of bytes now in FreeType bitmaps.
+
+	Correctly compute the vector size for each auxiliary face:
+	Type1 and TrueType fonts typically have different EM sizes.
+
+	Reverted to tesselating straight lines with one step.
+
+	* liboglft/OGLFT.h: Updated to be compilable by G++ 3.
+
+	Minor improvement of Doxygen comments.
+
+	Added height() method. Returns the "line spacing" of the font.
+
+	Added drawing of formatted numbers.
+
+	* tests/tutorial3.cpp: Updated to be compilable by G++ 3.
+
+	* tests/tutorial2.cpp: Updated to be compilable by G++ 3.
+
+	Also, minor modification to optionally (at compile time) use a
+	scalable representation. And, made it double buffered since that's the
+	only available visual with the Mach64 driver.
+
+	* tests/tutorial1.cpp, tests/speedtest.cpp, tests/demo.cpp:
+	Updated to be compilable by G++ 3.
+
+	* tests/demo3.cpp: Updated to be compilable by G++ 3.
+
+	Added example of number formatting.
+
+	* tests/demo2.cpp: Updated to be compilable by G++ 3.
+
+	* tests/Demo3UnicodeExample.h: Added GPL header.
+
+	* tests/Demo3UnicodeExample2.h: Initial checkin.
+
+	* README: Improved Qt project instructions.
+
+	* configure.ac: Updated version number.
+
+	* tests/tests.pro, OGLFT.pro, liboglft/liboglft.pro: Initial checkin.
+
+	* README, NEWS: Added new features for version 0.8.
+
+2002-03-26  Allen Barnett  <allen@lignumcomputing.com>
+
+	* tests/tutorial2.cpp, tests/tutorial1.cpp: Added <config.h>.
+
+	* tests/demo3.cpp:
+	Without GL_RASTER_POSITION_UNCLIPPED_IBM, need to adjust some of the
+	text items so that they are not clipped.
+
+	* tests/demo.cpp:
+	Reduced the size of the font since nVidia's OpenGL version does not
+	support the GL_RASTER_POSITION_UNCLIPPED_IBM.
+
+	* configure.ac:
+	Note that disabling Qt support also removes UNICODE support.
+
+2002-03-26  allen@llama.lignumcomputing.org  <allen@llama>
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/tutorial2.cpp, /home/allen/cvsroot/lignumCAD/OGLFT/tests/tutorial1.cpp:
+	Added <config.h>.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/demo3.cpp:
+	Without GL_RASTER_POSITION_UNCLIPPED_IBM, need to adjust some of the
+	text items so that they are not clipped.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/demo.cpp:
+	Reduced the size of the font since nVidia's OpenGL version does not
+	support the GL_RASTER_POSITION_UNCLIPPED_IBM.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/configure.ac:
+	Note that disabling Qt support also removes UNICODE support.
+
+2002-03-25  allen@llama.lignumcomputing.org  <allen@llama>
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/configure.ac:
+	Update the version number to 0.7.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/Makefile.am:
+	Use the correct name for the embedded font file.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.cpp:
+	Updated Doxygen comments.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/demo3.cpp:
+	Use .h for embedded font file to make automake happier.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/demo3.cpp, /home/allen/cvsroot/lignumCAD/OGLFT/tests/Demo3UnicodeExample.c, /home/allen/cvsroot/lignumCAD/OGLFT/tests/Demo3UnicodeExample.sfd, /home/allen/cvsroot/lignumCAD/OGLFT/tests/Demo3UnicodeExample.ttf, /home/allen/cvsroot/lignumCAD/OGLFT/tests/tosrc.pl:
+	Add demo files for UNICODE and multiple fonts.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/doc/documentation.dox:
+	Updated to 0.7.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.h:
+	Updated the Doxygen comments.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/NEWS: Addes the latest news.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/README:
+	Mention UNICODE rendering dependence on Qt and how to build the test programs.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/doc/Doxyfile:
+	Updated version number.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.h:
+	Fix typos in description of vertical justification enum documentation.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/configure.ac:
+	Now, if you have Qt and don't disable it, the library will compile
+	with UNICODE support, in the form of Qt's QString. Thus, the FLAGS
+	necessary to compile with Qt are propagated through to all the
+	Makefiles.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.h:
+	* Added the ability to draw glyphs based on UNICODE characters. Here,
+	  we use the Qt UNICODE representation: QString. Additionally, there
+	  are methods to set the foreground and background colors using
+	  QColor.
+
+	* Made the definition of measure(const char*) explicit in each of
+	  Face's immediate subclasses in order to avoid a complaint from
+	  gcc 2.95 about "using measure" from Face.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.cpp:
+	* Added the ability to draw glyphs based on UNICODE characters. Here,
+	  we use the Qt UNICODE representation: QString. Additionally, there
+	  are methods to set the foreground and background colors using
+	  QColor.
+
+	* Removed redundant insertion of display list index in the glyph display
+	  list cache.
+
+	* Removed memory leak on deletion of face. Was not freeing the glyph
+	  display lists.
+
+	* Added check for validity of FT_Face in OGLFT::Face subclasses before
+	  proceeding with subclass initiliation.
+
+	* For now at least, tessellation of straight lines is also broken into
+	  segments so that the triangles produced by gluTess* are (slightly)
+	  more regular.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.h:
+	Fix issue with compiling under older version (2.95) of GCC g++.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.cpp:
+	Add extra case statements to silence compiler warning.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.h:
+	Fix bug in BoundingBox auto-increment operator.
+
+2002-02-05  allen@llama.lignumcomputing.org  <allen@llama>
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/doc/documentation.dox:
+	Update copyright date and SourceForge logo reference.
+
+2002-02-04  allen@llama.lignumcomputing.org  <allen@llama>
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/NEWS, /home/allen/cvsroot/lignumCAD/OGLFT/configure.ac, /home/allen/cvsroot/lignumCAD/OGLFT/doc/Doxyfile:
+	Update to 0.6.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/NEWS:
+	Comment on "Changes to improve compilation on SGI."
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.h, /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.cpp:
+	Changes to improve compilation on SGI.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.h:
+	Don't try to include mpatrol header if built without mpatrol.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/configure.ac:
+	* Make sure to check for libm first.
+
+	* Do not continue build if proper freetype headers are not found.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/demo2.cpp:
+	stdio.h not included if mpatrol is undefined.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/Makefile.am:
+	Don't include moc_*.cpp files in distribution.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/vignette.h, /home/allen/cvsroot/lignumCAD/OGLFT/tests/speedtest.h:
+	Missing definition of exit() when built in "dist" mode (?)
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/ChangeLog:
+	Reran EMACS regeneration command.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/NEWS:
+	Add note about already open FT_Face.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/doc/html/classOGLFT_1_1ColorTess.html, /home/allen/cvsroot/lignumCAD/OGLFT/doc/html/classOGLFT_1_1ColorTess-members.html, /home/allen/cvsroot/lignumCAD/OGLFT/doc/html/classOGLFT_1_1TextureTess.html, /home/allen/cvsroot/lignumCAD/OGLFT/doc/html/classOGLFT_1_1TextureTess-members.html:
+	New structures.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/ChangeLog, /home/allen/cvsroot/lignumCAD/OGLFT/Makefile.in, /home/allen/cvsroot/lignumCAD/OGLFT/NEWS:
+	Updates for version 0.5.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/doc/Doxyfile:
+	Updated version number.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/doc/documentation.dox:
+	Updates for version 0.5.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/demo2.cpp:
+	Demo of using an already open FT_Face.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/demo3.cpp: The spiffy demo.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/Makefile.am:
+	Renamed demo2 and demo3.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.cpp, /home/allen/cvsroot/lignumCAD/OGLFT/liboglft/OGLFT.h:
+	Add a constructor where the FT_Face is already open.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/README:
+	Updated compilation instructions to better describe configure options.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/Makefile.am:
+	Add target for the bzip distribution.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/Makefile.am:
+	Added demo2 texture.png to distribution.
+
+	* /home/allen/cvsroot/lignumCAD/OGLFT/tests/demo2.cpp:
+	Run the per glyph display text in the other direction.
+
+2002-02-04  Allen Barnett  <allen@localhost.localdomain>
+
+	* NEWS: Comment on "Changes to improve compilation on SGI."
+
+	* liboglft/OGLFT.h, liboglft/OGLFT.cpp:
+	Changes to improve compilation on SGI.
+
+	* liboglft/OGLFT.h:
+	Don't try to include mpatrol header if built without mpatrol.
+
+	* configure.ac: * Make sure to check for libm first.
+
+	* Do not continue build if proper freetype headers are not found.
+
+	* tests/demo2.cpp: stdio.h not included if mpatrol is undefined.
+
+	* tests/Makefile.am: Don't include moc_*.cpp files in distribution.
+
+	* tests/vignette.h, tests/speedtest.h:
+	Missing definition of exit() when built in "dist" mode (?)
+
+	* ChangeLog: Reran EMACS regeneration command.
+
+	* NEWS: Add note about already open FT_Face.
+
+	* doc/Doxyfile: Updated version number.
+
+	* doc/documentation.dox: Updates for version 0.5.
+
+	* tests/demo2.cpp: Demo of using an already open FT_Face.
+
+	* tests/demo3.cpp: The spiffy demo.
+
+	* tests/Makefile.am: Renamed demo2 and demo3.
+
+	* liboglft/OGLFT.cpp, liboglft/OGLFT.h:
+	Add a constructor where the FT_Face is already open.
+
+	* README:
+	Updated compilation instructions to better describe configure options.
+
+	* Makefile.am: Add target for the bzip distribution.
+
+	* tests/Makefile.am: Added demo2 texture.png to distribution.
+
+	* tests/demo2.cpp:
+	Run the per glyph display text in the other direction.
+
+2002-02-01  Allen Barnett  <allen@localhost.localdomain>
+
+	* tests/background00a.png, tests/background00b.png, tests/background00.png, tests/background01.png, tests/background10a.png, tests/background10b.png, tests/background10.png, tests/background11.png, tests/background.png:
+	Background images for demo2.
+
+	* tests/tutorial3.cpp, tests/speedtest.cpp:
+	Accounted for absence of Solid face.
+
+	* configure.ac: Improved GLE checking.
+
+	* tests/demo2.cpp, tests/demo.cpp: Accounted for absence of Solid face.
+
+	* configure.ac: Added an mpatrol configuration option.
+
+	* liboglft/OGLFT.h:
+	Added definitions for Color and Texture callbacks during tessellation.
+
+	* liboglft/OGLFT.cpp: * Added color callback for Face::Outline.
+
+	* Added color and texture callbacks for Face::Filled.
+
+	* Properly set the character rotation reference for all face types.
+
+	* Cleaned up memory leak during GLU tesselation.
+
+	* tests/vignette.h, tests/demo2.cpp: Initial checkin
+
+2002-02-01  Allen Barnett  <allen@localhost.localdomain>
+
+	* tests/background00a.png, tests/background00b.png, tests/background00.png, tests/background01.png, tests/background10a.png, tests/background10b.png, tests/background10.png, tests/background11.png, tests/background.png:
+	Background images for demo2.
+
+	* tests/tutorial3.cpp, tests/speedtest.cpp:
+	Accounted for absence of Solid face.
+
+	* configure.ac: Improved GLE checking.
+
+	* tests/demo2.cpp, tests/demo.cpp: Accounted for absence of Solid face.
+
+	* configure.ac: Added an mpatrol configuration option.
+
+	* liboglft/OGLFT.h:
+	Added definitions for Color and Texture callbacks during tessellation.
+
+	* liboglft/OGLFT.cpp: * Added color callback for Face::Outline.
+
+	* Added color and texture callbacks for Face::Filled.
+
+	* Properly set the character rotation reference for all face types.
+
+	* Cleaned up memory leak during GLU tesselation.
+
+	* tests/vignette.h, tests/demo2.cpp: Initial checkin
+
+2002-01-29  Allen Barnett  <allen@localhost.localdomain>
+
+	* liboglft/OGLFT.cpp: Moved config.h to the main library source .
+
+	* liboglft/Makefile.am: Be sure to install the library header file.
+
+	* liboglft/OGLFT.h: Moved config.h to the main library source.
+
+	* tests/tutorial3.cpp, tests/tutorial2.cpp, tests/tutorial1.cpp, tests/speedtest.cpp:
+	Added revsion control keyword (Id).
+
+	* tests/speedtest.cpp, tests/speedtest.h:
+	Reorganized a little to help automake deal with .moc files.
+	

engine/libraries/oglft/INSTALL

@@ -0,0 +1,231 @@
+Copyright 1994, 1995, 1996, 1999, 2000, 2001 Free Software Foundation,
+Inc.
+
+   This file is free documentation; the Free Software Foundation gives
+unlimited permission to copy, distribute and modify it.
+
+Basic Installation
+==================
+
+   These are generic installation instructions.
+
+   The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation.  It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions.  Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, and a
+file `config.log' containing compiler output (useful mainly for
+debugging `configure').
+
+   It can also use an optional file (typically called `config.cache'
+and enabled with `--cache-file=config.cache' or simply `-C') that saves
+the results of its tests to speed up reconfiguring.  (Caching is
+disabled by default to prevent problems with accidental use of stale
+cache files.)
+
+   If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release.  If you are using the cache, and at
+some point `config.cache' contains results you don't want to keep, you
+may remove or edit it.
+
+   The file `configure.ac' (or `configure.in') is used to create
+`configure' by a program called `autoconf'.  You only need
+`configure.ac' if you want to change it or regenerate `configure' using
+a newer version of `autoconf'.
+
+The simplest way to compile this package is:
+
+  1. `cd' to the directory containing the package's source code and type
+     `./configure' to configure the package for your system.  If you're
+     using `csh' on an old version of System V, you might need to type
+     `sh ./configure' instead to prevent `csh' from trying to execute
+     `configure' itself.
+
+     Running `configure' takes awhile.  While running, it prints some
+     messages telling which features it is checking for.
+
+  2. Type `make' to compile the package.
+
+  3. Optionally, type `make check' to run any self-tests that come with
+     the package.
+
+  4. Type `make install' to install the programs and any data files and
+     documentation.
+
+  5. You can remove the program binaries and object files from the
+     source code directory by typing `make clean'.  To also remove the
+     files that `configure' created (so you can compile the package for
+     a different kind of computer), type `make distclean'.  There is
+     also a `make maintainer-clean' target, but that is intended mainly
+     for the package's developers.  If you use it, you may have to get
+     all sorts of other programs in order to regenerate files that came
+     with the distribution.
+
+Compilers and Options
+=====================
+
+   Some systems require unusual options for compilation or linking that
+the `configure' script does not know about.  Run `./configure --help'
+for details on some of the pertinent environment variables.
+
+   You can give `configure' initial values for variables by setting
+them in the environment.  You can do that on the command line like this:
+
+     ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
+
+   *Note Defining Variables::, for more details.
+
+Compiling For Multiple Architectures
+====================================
+
+   You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory.  To do this, you must use a version of `make' that
+supports the `VPATH' variable, such as GNU `make'.  `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script.  `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+   If you have to use a `make' that does not support the `VPATH'
+variable, you have to compile the package for one architecture at a
+time in the source code directory.  After you have installed the
+package for one architecture, use `make distclean' before reconfiguring
+for another architecture.
+
+Installation Names
+==================
+
+   By default, `make install' will install the package's files in
+`/usr/local/bin', `/usr/local/man', etc.  You can specify an
+installation prefix other than `/usr/local' by giving `configure' the
+option `--prefix=PATH'.
+
+   You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files.  If you
+give `configure' the option `--exec-prefix=PATH', the package will use
+PATH as the prefix for installing programs and libraries.
+Documentation and other data files will still use the regular prefix.
+
+   In addition, if you use an unusual directory layout you can give
+options like `--bindir=PATH' to specify different values for particular
+kinds of files.  Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+   If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+   Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System).  The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+   For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+   There may be some features `configure' cannot figure out
+automatically, but needs to determine by the type of host the package
+will run on.  Usually `configure' can figure that out, but if it prints
+a message saying it cannot guess the host type, give it the
+`--build=TYPE' option.  TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name which has the form:
+
+     CPU-COMPANY-SYSTEM
+
+where SYSTEM can have one of these forms:
+
+     OS KERNEL-OS
+
+   See the file `config.sub' for the possible values of each field.  If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the host type.
+
+   If you are _building_ compiler tools for cross-compiling, you should
+use the `--target=TYPE' option to select the type of system they will
+produce code for.
+
+   If you want to _use_ a cross compiler, that generates code for a
+platform different from the build platform, you should specify the host
+platform (i.e., that on which the generated programs will eventually be
+run) with `--host=TYPE'.  In this case, you should also specify the
+build platform with `--build=TYPE', because, in this case, it may not
+be possible to guess the build platform (it sometimes involves
+compiling and running simple test programs, and this can't be done if
+the compiler is a cross compiler).
+
+Sharing Defaults
+================
+
+   If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists.  Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Defining Variables
+==================
+
+   Variables not defined in a site shell script can be set in the
+environment passed to `configure'.  However, some packages may run
+configure again during the build, and the customized values of these
+variables may be lost.  In order to avoid this problem, you should set
+them in the `configure' command line, using `VAR=value'.  For example:
+
+     ./configure CC=/usr/local2/bin/gcc
+
+will cause the specified gcc to be used as the C compiler (unless it is
+overridden in the site shell script).
+
+`configure' Invocation
+======================
+
+   `configure' recognizes the following options to control how it
+operates.
+
+`--help'
+`-h'
+     Print a summary of the options to `configure', and exit.
+
+`--version'
+`-V'
+     Print the version of Autoconf used to generate the `configure'
+     script, and exit.
+
+`--cache-file=FILE'
+     Enable the cache: use and save the results of the tests in FILE,
+     traditionally `config.cache'.  FILE defaults to `/dev/null' to
+     disable caching.
+
+`--config-cache'
+`-C'
+     Alias for `--cache-file=config.cache'.
+
+`--quiet'
+`--silent'
+`-q'
+     Do not print messages saying which checks are being made.  To
+     suppress all normal output, redirect it to `/dev/null' (any error
+     messages will still be shown).
+
+`--srcdir=DIR'
+     Look for the package's source code in directory DIR.  Usually
+     `configure' can determine that directory automatically.
+
+`configure' also accepts some other, not widely useful, options.  Run
+`configure --help' for more details.
+

engine/libraries/oglft/NEWS

@@ -0,0 +1,46 @@
+New in OGLFT version 0.8
+
+  * Added the ability to draw numbers with a format à la printf.
+    There is also a format, %p, which will draw the number as
+    a fraction.
+
+  * Updated the source to be compilable with G++ 3.
+
+  * Added an (untested) Qt project for OSs which don't support
+    autoconf.
+
+  * Note: FreeType versions 2.0.9 through 2.1.2 contain a bug which
+    prevents rotated text from being rendered correctly.
+
+New in OGLFT version 0.7
+
+  * Fixed another memory leak when deleting a Face which had compiled
+    its glyphs into display lists (the default behavior).
+
+  * Added the ability to render UNICODE glyphs using Qt QStrings.
+
+  * Added the ability to use mulitple FT_Faces in a single OGLFT::Face
+    so that you can cover more UNICODE points by combining fonts.
+
+New in OGLFT version 0.6
+
+  Updates include:
+
+  * Fixed a pervasive memory leak (must call FT_Done_Glyph after each
+    call to FT_Get_Glyph).
+
+  * measure() now queries the OpenGL view and calls gluUnProject to
+    compute accurate glyph sizes.
+
+  * Autoconf-enabled.
+
+  * There is a user color callback for drawing the Outline face and
+    color and texture coordinate callbacks for the Filled face.
+
+  * Can pass an already open FreeType FT_Face to a rendering style.
+
+  * Changes to improve compilation on the SGI.
+
+;;;Local variables: ***
+;;;mode: text ***
+;;;End: ***

engine/libraries/oglft/README

@@ -0,0 +1,52 @@
+OGLFT Version 0.8
+
+OGLFT is a library for drawing text in OpenGL. It usees the FreeType 2
+library to extract information from font files on your system. OGLFT
+can handle any of the files which FreeType can read, both vector and
+bitmapped (although currently the bitmap routines are not implemented).
+
+The software is available from www.sf.net/project/oglft.
+
+The documentation is in ./doc/html/index.html.
+
+The mailing list is oglft-devel@lists.sourceforge.net.
+
+A couple of installation notes:
+
+OGLFT depends on the GLE Tubing and Extrusion library to create solid
+characters. If you don't have this library (or don't want solid
+glyphs), you can disable this feature with:
+
+./configure --disable-solid
+
+If the configure script can't find the GLE library and header files,
+it is disabled automatically.
+
+UNICODE character rendering, Demo3 and the performance test code
+depend on the Qt library. You can disable them with:
+
+./configure --disable-qt
+
+Note that the configure script depends on finding the environment
+variable QTDIR in order to locate the headers and library for Qt (if
+not disabled). If the configure script can't successfully build a
+simple Qt app, Qt is disabled automatically.
+
+'make check' builds the test programs in the tests/ directory.
+
+There is also a (mostly untested) Qt project file from which it may be
+possible to generate a Makefile for operating systems for which
+autoconf is not supported. Edit the files ./OGLFT/OGLFT.pro and
+./tests/tests.pro to change the values to those appropriate for your
+operating system. Generate the library and the test program by doing a
+"make install" (this will actually only copy the library to the ./lib
+directory).
+
+---------------------------------------------------------------------
+lignum Computing, Inc., July, 2002
+oglft@lignumcomputing.com
+
+
+;;;Local variables: ***
+;;;mode: text ***
+;;;End: ***

engine/libraries/oglft/liboglft/CMakeLists.txt

@@ -0,0 +1,45 @@
+CMAKE_MINIMUM_REQUIRED (VERSION 2.6)
+
+FIND_PACKAGE ( FreeType2 REQUIRED )
+
+FILE( GLOB sources *.cpp )
+IF( DESIRED_QT_VERSION EQUAL 3)
+  INCLUDE_DIRECTORIES( ${QT_INCLUDE_DIR} )
+ELSEIF( DESIRED_QT_VERSION EQUAL 4 )
+  INCLUDE_DIRECTORIES( ${QT_QTCORE_INCLUDE_DIR} )
+  INCLUDE_DIRECTORIES( ${QT_QTGUI_INCLUDE_DIR} )
+ENDIF( DESIRED_QT_VERSION EQUAL 3)
+
+INCLUDE_DIRECTORIES(
+  ${FREETYPE2_INCLUDE_DIR}
+	)
+INCLUDE_DIRECTORIES( ${PROJECT_BINARY_DIR} )
+CONFIGURE_FILE(
+   "${CMAKE_CURRENT_SOURCE_DIR}/OGLFT.h.cmake"
+   "${PROJECT_BINARY_DIR}/OGLFT.h"
+)
+
+IF( WIN32 )
+  ADD_DEFINITIONS( -DOGLFT_BUILD )
+ENDIF( WIN32 )
+
+ADD_LIBRARY( oglft STATIC ${sources} )
+TARGET_LINK_LIBRARIES(
+  oglft
+  ${FREETYPE2_LIBRARIES}
+  ${OPENGL_LIBRARIES}
+ )
+
+INSTALL(
+  TARGETS oglft
+  LIBRARY DESTINATION lib
+  ARCHIVE DESTINATION lib
+  COMPONENT libraries
+)
+
+INSTALL(
+  FILES "${PROJECT_BINARY_DIR}/OGLFT.h"
+  DESTINATION include/OGLFT
+    PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
+  COMPONENT headers
+)

engine/libraries/oglft/tests/CMakeLists.txt

@@ -0,0 +1,117 @@
+FIND_PACKAGE( GLUT )
+
+LINK_LIBRARIES( oglft ${FREETYPE2_LIBRARIES})
+
+INCLUDE_DIRECTORIES( ${PROJECT_BINARY_DIR} )
+INCLUDE_DIRECTORIES( ${CMAKE_CURRENT_SOURCE_DIR} )
+INCLUDE_DIRECTORIES( ${CMAKE_CURRENT_BINARY_DIR} )
+INCLUDE_DIRECTORIES( ${FREETYPE2_INCLUDE_DIR}
+	${FREETYPE2_INCLUDE_DIR}/freetype2
+	)
+INCLUDE_DIRECTORIES( ${GLUT_INCLUDE_DIR} )
+IF( ENABLE_QT )
+IF( DESIRED_QT_VERSION EQUAL 3)
+  INCLUDE_DIRECTORIES( ${QT_INCLUDE_DIR} )
+  LINK_LIBRARIES( oglft ${FREETYPE2_LIBRARIES} ${QT_LIBRARIES} )
+ELSEIF( DESIRED_QT_VERSION EQUAL 4 )
+  INCLUDE_DIRECTORIES( ${QT_QTCORE_INCLUDE_DIR} )
+  INCLUDE_DIRECTORIES( ${QT_QTGUI_INCLUDE_DIR} )
+  INCLUDE_DIRECTORIES( ${QT_QTOPENGL_INCLUDE_DIR} )
+  LINK_LIBRARIES( oglft ${FREETYPE2_LIBRARIES} ${QT_QTCORE_LIBRARY} ${QT_QTGUI_LIBRARY} )
+ENDIF( DESIRED_QT_VERSION EQUAL 3)
+ENDIF( ENABLE_QT )
+
+ADD_EXECUTABLE( 
+  tutorial1
+  tutorial1.cpp 
+)
+
+TARGET_LINK_LIBRARIES(
+  tutorial1
+  ${GLUT_LIBRARIES}
+)
+
+ADD_EXECUTABLE( 
+  tutorial2
+  tutorial2.cpp 
+)
+
+TARGET_LINK_LIBRARIES(
+  tutorial2
+  ${GLUT_LIBRARIES}
+)
+
+ADD_EXECUTABLE( 
+  tutorial3
+  tutorial3.cpp 
+)
+
+TARGET_LINK_LIBRARIES(
+  tutorial3
+  ${GLUT_LIBRARIES}
+)
+
+ADD_EXECUTABLE( 
+  tutorial3
+  tutorial3.cpp 
+)
+
+TARGET_LINK_LIBRARIES(
+  tutorial3
+  ${GLUT_LIBRARIES}
+)
+
+ADD_EXECUTABLE( 
+  demo
+  demo.cpp 
+)
+
+TARGET_LINK_LIBRARIES(
+  demo
+  ${GLUT_LIBRARIES}
+)
+
+ADD_EXECUTABLE( 
+  demo2
+  demo2.cpp 
+)
+
+TARGET_LINK_LIBRARIES(
+  demo2
+  ${GLUT_LIBRARIES}
+)
+
+IF( ENABLE_QT )
+IF( DESIRED_QT_VERSION EQUAL 3 )
+KDE3_AUTOMOC( demo3.cpp speedtest.cpp )
+ELSEIF( DESIRED_QT_VERSION EQUAL 4 )
+QT4_AUTOMOC( demo3.cpp speedtest.cpp )
+ENDIF( DESIRED_QT_VERSION EQUAL 3 )
+ADD_EXECUTABLE( 
+  demo3
+  demo3.cpp 
+)
+
+TARGET_LINK_LIBRARIES(
+  demo3
+  ${OPENGL_LIBRARIES}
+)
+
+ADD_EXECUTABLE( 
+  speedtest
+  speedtest.cpp 
+)
+
+TARGET_LINK_LIBRARIES(
+  speedtest
+  ${OPENGL_LIBRARIES}
+)
+ENDIF( ENABLE_QT )
+
+# Copy some files needed by demo3 into the tests directory.
+FILE( GLOB images *.png )
+FOREACH( test_png ${images} )
+  GET_FILENAME_COMPONENT( png_file ${test_png} NAME )
+  CONFIGURE_FILE( ${test_png}
+  "${CMAKE_CURRENT_BINARY_DIR}/${png_file}" COPYONLY )
+ENDFOREACH( test_png ${images} )

engine/libraries/oglft/tests/Demo3UnicodeExample.h

@@ -0,0 +1,211 @@
+/*
+ * Demo3UnicodeExample.h: Sample font for demo3 example.
+ * Copyright (C) 2002 lignum Computing, Inc. <oglft@lignumcomputing.com>
+ * $Id$
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+FT_Byte Demo3UnicodeExample_ttf[] = {
+0,1,0,0,0,11,0,128,0,3,0,48,79,83,47,50,
+83,120,128,90,0,0,0,188,0,0,0,86,99,109,97,112,
+135,81,49,45,0,0,1,20,0,0,1,114,99,118,116,32,
+5,238,9,153,0,0,2,136,0,0,0,36,103,108,121,102,
+105,160,31,169,0,0,2,172,0,0,4,178,104,101,97,100,
+212,135,107,129,0,0,7,96,0,0,0,54,104,104,101,97,
+6,249,3,88,0,0,7,152,0,0,0,36,104,109,116,120,
+20,76,1,64,0,0,7,188,0,0,0,40,108,111,99,97,
+6,150,5,39,0,0,7,228,0,0,0,22,109,97,120,112,
+0,78,0,250,0,0,7,252,0,0,0,32,110,97,109,101,
+88,93,109,50,0,0,8,28,0,0,3,72,112,111,115,116,
+11,139,233,133,0,0,11,100,0,0,0,100,0,1,3,232,
+1,144,0,5,0,12,0,200,0,200,0,0,0,200,0,200,
+0,200,0,0,0,200,0,49,1,2,0,0,2,0,5,3,
+0,0,0,0,0,0,0,0,1,131,0,0,0,96,0,0,
+0,0,0,0,0,0,80,102,69,100,0,64,0,0,34,43,
+3,164,255,52,0,0,3,164,0,204,0,0,0,1,0,0,
+0,0,0,0,0,0,0,2,0,3,0,1,0,0,0,20,
+0,1,0,0,0,0,0,108,0,4,0,88,0,0,0,18,
+0,16,0,3,0,2,3,169,3,195,3,200,33,38,33,146,
+34,7,34,25,34,43,255,255,0,0,3,169,3,195,3,200,
+33,38,33,146,34,7,34,25,34,43,255,255,252,90,252,65,
+252,61,222,221,222,116,222,0,221,239,221,222,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,1,6,0,0,1,0,0,0,0,0,0,0,1,3,
+0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,33,2,121,0,0,0,86,
+0,83,1,30,0,100,0,12,0,74,2,25,0,92,2,222,
+0,90,0,50,3,176,0,41,0,102,0,78,0,2,0,33,
+0,0,1,110,2,154,0,3,0,7,0,46,177,1,0,47,
+60,178,7,4,0,237,50,177,6,5,220,60,178,3,2,0,
+237,50,0,177,3,0,47,60,178,5,4,0,237,50,178,7,
+6,1,252,60,178,1,2,0,237,50,51,17,33,17,37,33,
+17,33,33,1,77,254,212,1,11,254,245,2,154,253,102,33,
+2,88,0,1,0,48,0,0,2,206,2,234,0,38,0,137,
+0,177,20,2,63,176,21,47,176,37,51,176,38,51,177,0,
+3,237,177,1,3,237,177,18,3,237,177,19,3,237,176,6,
+47,176,28,51,176,29,51,176,30,51,177,10,4,237,1,176,
+0,47,176,38,51,177,36,5,237,177,37,5,237,176,2,47,
+176,3,51,176,4,51,176,5,51,177,6,6,237,177,33,6,
+237,177,34,6,237,177,35,6,237,176,21,176,36,16,222,176,
+22,50,177,19,5,237,177,20,5,237,176,23,176,34,16,222,
+176,24,50,176,25,50,177,15,6,237,177,16,6,237,177,17,
+6,237,177,40,16,16,204,48,49,55,51,38,53,39,54,55,
+54,55,54,23,22,23,22,23,22,21,20,7,51,21,33,53,
+54,61,1,54,39,38,7,38,7,49,6,23,20,23,21,33,
+48,160,151,1,1,101,24,28,74,120,92,58,104,36,16,152,
+160,254,226,178,3,71,63,95,110,66,53,2,177,254,226,86,
+127,182,1,165,99,23,17,50,5,4,37,65,127,55,61,182,
+128,86,81,83,216,2,127,82,72,1,2,96,78,104,220,85,
+81,0,0,2,0,34,255,243,2,98,2,32,0,19,0,35,
+0,98,0,177,8,7,63,176,9,47,176,10,51,177,27,8,
+237,177,28,8,237,177,29,8,237,177,0,9,63,176,19,47,
+177,1,8,237,177,2,8,237,1,176,13,47,176,14,51,176,
+15,51,176,16,51,177,23,10,237,177,24,10,237,177,25,10,
+237,176,31,176,24,16,222,176,32,50,176,33,50,177,3,10,
+237,177,4,10,237,177,5,10,237,177,6,10,237,177,37,5,
+16,204,48,49,1,21,35,22,21,23,20,7,6,35,34,47,
+1,38,61,1,52,55,54,23,7,6,7,6,23,6,23,22,
+23,54,55,54,39,52,39,38,2,98,145,66,1,73,68,108,
+108,66,5,70,73,106,154,87,94,40,22,2,2,81,33,44,
+102,38,19,1,75,35,2,19,73,62,130,1,143,67,67,65,
+5,70,136,2,141,68,96,40,63,2,87,49,65,134,48,20,
+1,1,95,47,61,130,50,23,0,1,0,61,255,52,2,157,
+2,19,0,34,0,118,0,176,26,47,176,27,51,177,0,11,
+237,177,1,11,237,177,9,11,237,177,10,11,237,177,17,11,
+237,177,18,11,237,1,176,0,47,176,33,51,176,34,51,177,
+1,12,237,177,2,12,237,177,3,12,237,176,8,176,1,16,
+222,176,9,50,176,27,50,176,28,50,177,10,12,237,177,11,
+12,237,177,25,12,237,177,26,12,237,176,14,176,10,16,222,
+176,15,50,176,16,50,176,17,50,177,18,12,237,177,19,12,
+237,177,20,12,237,177,36,18,16,204,48,49,19,51,17,22,
+23,22,23,22,23,17,51,17,54,55,54,61,1,17,51,17,
+6,7,6,7,6,7,21,35,53,38,39,38,39,38,39,61,
+89,2,19,13,29,39,68,90,124,32,13,89,1,24,20,51,
+59,103,90,138,63,43,9,5,1,2,19,254,250,97,34,25,
+20,26,3,1,211,254,45,4,86,38,76,1,1,6,254,253,
+122,47,39,35,38,3,192,192,5,68,48,55,32,76,0,1,
+0,39,0,78,3,216,1,182,0,18,0,37,0,176,11,47,
+176,12,51,177,13,13,237,177,14,13,237,1,176,12,47,176,
+13,51,177,3,14,237,177,4,14,237,177,20,3,16,204,48,
+49,1,22,31,1,21,6,7,6,7,35,54,55,33,53,33,
+38,39,53,39,3,10,91,64,51,86,76,19,26,39,47,52,
+252,227,3,29,51,20,26,1,182,98,41,27,23,44,78,20,
+29,101,54,51,66,36,1,51,0,2,0,14,0,0,2,103,
+2,182,0,2,0,5,0,23,0,176,3,47,176,5,51,177,
+0,15,237,177,1,15,237,1,177,7,1,47,204,48,49,19,
+33,1,3,27,1,14,2,88,254,198,168,200,220,2,182,253,
+74,2,140,254,29,1,227,0,0,1,0,92,1,53,0,195,
+1,156,0,3,0,37,0,176,0,47,176,3,51,177,1,16,
+237,177,2,16,237,1,176,0,47,176,1,51,177,2,16,237,
+177,3,16,237,177,5,2,16,204,48,49,19,53,51,21,92,
+103,1,54,102,102,0,0,1,255,255,255,145,1,25,3,164,
+0,46,0,29,176,0,47,176,26,51,176,38,51,176,45,51,
+176,46,51,177,16,17,237,177,21,17,237,177,22,17,237,48,
+49,27,1,54,55,54,55,54,23,22,21,22,7,6,35,34,
+39,38,7,6,31,1,22,7,3,6,7,6,39,38,39,38,
+55,54,55,54,23,22,23,22,63,1,54,39,38,39,38,17,
+100,9,9,70,14,16,31,22,9,1,28,9,10,17,21,18,
+15,8,1,4,20,1,8,4,41,25,43,25,17,21,6,3,
+9,20,29,11,7,22,15,1,8,5,1,1,18,1,218,1,
+10,155,29,6,2,1,28,13,14,35,13,4,18,19,15,9,
+17,72,251,86,254,222,147,52,35,1,1,16,20,35,15,9,
+22,11,5,8,24,14,1,15,48,12,8,158,1,1,0,0,
+0,1,0,0,0,0,0,0,248,61,157,109,95,15,60,245,
+0,19,3,232,0,0,0,0,184,197,19,226,0,0,0,0,
+184,197,19,226,255,255,255,52,3,216,3,164,0,0,0,8,
+0,2,0,0,0,0,0,0,0,1,0,0,3,32,255,56,
+0,0,4,11,255,255,0,10,3,216,0,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,10,1,176,0,33,
+0,0,0,0,1,77,0,0,2,248,0,48,2,142,0,34,
+2,236,0,61,4,11,0,39,2,136,0,14,1,38,0,92,
+1,35,255,255,0,0,0,43,0,43,0,43,0,171,1,22,
+1,137,1,190,1,222,1,253,2,89,0,0,0,1,0,0,
+0,10,0,47,0,2,0,0,0,0,0,2,0,0,0,64,
+0,1,0,0,0,64,0,137,0,0,0,0,0,0,0,21,
+1,2,0,1,0,0,0,0,0,0,0,65,0,0,0,1,
+0,0,0,0,0,1,0,21,0,66,0,1,0,0,0,0,
+0,2,0,7,0,88,0,1,0,0,0,0,0,3,0,47,
+0,96,0,1,0,0,0,0,0,4,0,21,0,144,0,1,
+0,0,0,0,0,5,0,7,0,166,0,1,0,0,0,0,
+0,6,0,19,0,174,0,0,0,3,0,0,0,0,0,130,
+0,194,0,0,0,3,0,0,0,1,0,42,1,70,0,0,
+0,3,0,0,0,2,0,14,1,114,0,0,0,3,0,0,
+0,3,0,94,1,130,0,0,0,3,0,0,0,4,0,42,
+1,226,0,0,0,3,0,0,0,5,0,14,2,14,0,0,
+0,3,0,0,0,6,0,38,2,30,0,3,0,1,4,9,
+0,0,0,130,0,194,0,3,0,1,4,9,0,1,0,42,
+1,70,0,3,0,1,4,9,0,2,0,14,1,114,0,3,
+0,1,4,9,0,3,0,94,1,130,0,3,0,1,4,9,
+0,4,0,42,1,226,0,3,0,1,4,9,0,5,0,14,
+2,14,0,3,0,1,4,9,0,6,0,38,2,30,67,114,
+101,97,116,101,100,32,98,121,32,65,108,108,101,110,32,66,
+97,114,110,101,116,116,32,119,105,116,104,32,80,102,97,69,
+100,105,116,32,49,46,48,32,40,104,116,116,112,58,47,47,
+112,102,97,101,100,105,116,46,115,102,46,110,101,116,41,0,
+68,101,109,111,51,32,85,110,105,99,111,100,101,32,69,120,
+97,109,112,108,101,0,82,101,103,117,108,97,114,0,80,102,
+97,69,100,105,116,32,49,46,48,32,58,32,68,101,109,111,
+51,32,85,110,105,99,111,100,101,32,69,120,97,109,112,108,
+101,32,58,32,50,53,45,50,45,50,48,55,50,0,68,101,
+109,111,51,32,85,110,105,99,111,100,101,32,69,120,97,109,
+112,108,101,0,48,48,49,46,48,48,48,0,68,101,109,111,
+51,85,110,105,99,111,100,101,69,120,97,109,112,108,101,0,
+0,67,0,114,0,101,0,97,0,116,0,101,0,100,0,32,
+0,98,0,121,0,32,0,65,0,108,0,108,0,101,0,110,
+0,32,0,66,0,97,0,114,0,110,0,101,0,116,0,116,
+0,32,0,119,0,105,0,116,0,104,0,32,0,80,0,102,
+0,97,0,69,0,100,0,105,0,116,0,32,0,49,0,46,
+0,48,0,32,0,40,0,104,0,116,0,116,0,112,0,58,
+0,47,0,47,0,112,0,102,0,97,0,101,0,100,0,105,
+0,116,0,46,0,115,0,102,0,46,0,110,0,101,0,116,
+0,41,0,0,0,68,0,101,0,109,0,111,0,51,0,32,
+0,85,0,110,0,105,0,99,0,111,0,100,0,101,0,32,
+0,69,0,120,0,97,0,109,0,112,0,108,0,101,0,0,
+0,82,0,101,0,103,0,117,0,108,0,97,0,114,0,0,
+0,80,0,102,0,97,0,69,0,100,0,105,0,116,0,32,
+0,49,0,46,0,48,0,32,0,58,0,32,0,68,0,101,
+0,109,0,111,0,51,0,32,0,85,0,110,0,105,0,99,
+0,111,0,100,0,101,0,32,0,69,0,120,0,97,0,109,
+0,112,0,108,0,101,0,32,0,58,0,32,0,50,0,53,
+0,45,0,50,0,45,0,50,0,48,0,55,0,50,0,0,
+0,68,0,101,0,109,0,111,0,51,0,32,0,85,0,110,
+0,105,0,99,0,111,0,100,0,101,0,32,0,69,0,120,
+0,97,0,109,0,112,0,108,0,101,0,0,0,48,0,48,
+0,49,0,46,0,48,0,48,0,48,0,0,0,68,0,101,
+0,109,0,111,0,51,0,85,0,110,0,105,0,99,0,111,
+0,100,0,101,0,69,0,120,0,97,0,109,0,112,0,108,
+0,101,0,0,0,2,0,0,0,0,0,0,255,156,0,50,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,10,0,0,0,1,0,2,1,2,1,3,
+1,4,1,5,1,6,1,7,0,156,7,117,110,105,48,51,
+65,57,5,115,105,103,109,97,3,112,115,105,10,97,114,114,
+111,119,114,105,103,104,116,8,103,114,97,100,105,101,110,116,
+7,117,110,105,50,50,49,57,
+};
+const int Demo3UnicodeExample_ttf_size = sizeof( Demo3UnicodeExample_ttf );

engine/libraries/oglft/tests/Demo3UnicodeExample.sfd

@@ -0,0 +1,949 @@
+SplineFontDB: 1.0
+FontName: Demo3UnicodeExample
+FullName: Demo3 Unicode Example
+FamilyName: Demo3 Unicode Example
+Weight: Medium
+Copyright: Created by Allen Barnett with PfaEdit 1.0 (http://pfaedit.sf.net)
+Version: 001.000
+ItalicAngle: 0
+UnderlinePosition: -100
+UnderlineWidth: 50
+Ascent: 800
+Descent: 200
+FSType: 12
+PfmFamily: 17
+TTFWeight: 400
+TTFWidth: 5
+Panose: 2 0 5 3 0 0 0 0 0 0
+Encoding: 26
+DisplaySize: -24
+AntiAlias: 1
+BeginChars: 65536 263
+StartChar: space
+Encoding: 32 32
+Width: 1000
+EndChar
+StartChar: exclam
+Encoding: 33 33
+Width: 1000
+EndChar
+StartChar: quotedbl
+Encoding: 34 34
+Width: 1000
+EndChar
+StartChar: numbersign
+Encoding: 35 35
+Width: 1000
+EndChar
+StartChar: dollar
+Encoding: 36 36
+Width: 1000
+EndChar
+StartChar: percent
+Encoding: 37 37
+Width: 1000
+EndChar
+StartChar: ampersand
+Encoding: 38 38
+Width: 1000
+EndChar
+StartChar: quotesingle
+Encoding: 39 39
+Width: 1000
+EndChar
+StartChar: parenleft
+Encoding: 40 40
+Width: 1000
+EndChar
+StartChar: parenright
+Encoding: 41 41
+Width: 1000
+EndChar
+StartChar: asterisk
+Encoding: 42 42
+Width: 1000
+EndChar
+StartChar: plus
+Encoding: 43 43
+Width: 1000
+EndChar
+StartChar: comma
+Encoding: 44 44
+Width: 1000
+EndChar
+StartChar: hyphen
+Encoding: 45 45
+Width: 1000
+EndChar
+StartChar: period
+Encoding: 46 46
+Width: 1000
+EndChar
+StartChar: slash
+Encoding: 47 47
+Width: 1000
+EndChar
+StartChar: zero
+Encoding: 48 48
+Width: 1000
+EndChar
+StartChar: one
+Encoding: 49 49
+Width: 1000
+EndChar
+StartChar: two
+Encoding: 50 50
+Width: 1000
+EndChar
+StartChar: three
+Encoding: 51 51
+Width: 1000
+EndChar
+StartChar: four
+Encoding: 52 52
+Width: 1000
+EndChar
+StartChar: five
+Encoding: 53 53
+Width: 1000
+EndChar
+StartChar: six
+Encoding: 54 54
+Width: 1000
+EndChar
+StartChar: seven
+Encoding: 55 55
+Width: 1000
+EndChar
+StartChar: eight
+Encoding: 56 56
+Width: 1000
+EndChar
+StartChar: nine
+Encoding: 57 57
+Width: 1000
+EndChar
+StartChar: colon
+Encoding: 58 58
+Width: 1000
+EndChar
+StartChar: semicolon
+Encoding: 59 59
+Width: 1000
+EndChar
+StartChar: less
+Encoding: 60 60
+Width: 1000
+EndChar
+StartChar: equal
+Encoding: 61 61
+Width: 1000
+EndChar
+StartChar: greater
+Encoding: 62 62
+Width: 1000
+EndChar
+StartChar: question
+Encoding: 63 63
+Width: 1000
+EndChar
+StartChar: at
+Encoding: 64 64
+Width: 1000
+EndChar
+StartChar: A
+Encoding: 65 65
+Width: 1000
+EndChar
+StartChar: B
+Encoding: 66 66
+Width: 1000
+EndChar
+StartChar: C
+Encoding: 67 67
+Width: 1000
+EndChar
+StartChar: D
+Encoding: 68 68
+Width: 1000
+EndChar
+StartChar: E
+Encoding: 69 69
+Width: 1000
+EndChar
+StartChar: F
+Encoding: 70 70
+Width: 1000
+EndChar
+StartChar: G
+Encoding: 71 71
+Width: 1000
+EndChar
+StartChar: H
+Encoding: 72 72
+Width: 1000
+EndChar
+StartChar: I
+Encoding: 73 73
+Width: 1000
+EndChar
+StartChar: J
+Encoding: 74 74
+Width: 1000
+EndChar
+StartChar: K
+Encoding: 75 75
+Width: 1000
+EndChar
+StartChar: L
+Encoding: 76 76
+Width: 1000
+EndChar
+StartChar: M
+Encoding: 77 77
+Width: 1000
+EndChar
+StartChar: N
+Encoding: 78 78
+Width: 1000
+EndChar
+StartChar: O
+Encoding: 79 79
+Width: 1000
+EndChar
+StartChar: P
+Encoding: 80 80
+Width: 1000
+EndChar
+StartChar: Q
+Encoding: 81 81
+Width: 1000
+EndChar
+StartChar: R
+Encoding: 82 82
+Width: 1000
+EndChar
+StartChar: S
+Encoding: 83 83
+Width: 1000
+EndChar
+StartChar: T
+Encoding: 84 84
+Width: 1000
+EndChar
+StartChar: U
+Encoding: 85 85
+Width: 1000
+EndChar
+StartChar: V
+Encoding: 86 86
+Width: 1000
+EndChar
+StartChar: W
+Encoding: 87 87
+Width: 1000
+EndChar
+StartChar: X
+Encoding: 88 88
+Width: 1000
+EndChar
+StartChar: Y
+Encoding: 89 89
+Width: 1000
+EndChar
+StartChar: Z
+Encoding: 90 90
+Width: 1000
+EndChar
+StartChar: bracketleft
+Encoding: 91 91
+Width: 1000
+EndChar
+StartChar: backslash
+Encoding: 92 92
+Width: 1000
+EndChar
+StartChar: bracketright
+Encoding: 93 93
+Width: 1000
+EndChar
+StartChar: asciicircum
+Encoding: 94 94
+Width: 1000
+EndChar
+StartChar: underscore
+Encoding: 95 95
+Width: 1000
+EndChar
+StartChar: grave
+Encoding: 96 96
+Width: 1000
+EndChar
+StartChar: a
+Encoding: 97 97
+Width: 1000
+EndChar
+StartChar: b
+Encoding: 98 98
+Width: 1000
+EndChar
+StartChar: c
+Encoding: 99 99
+Width: 1000
+EndChar
+StartChar: d
+Encoding: 100 100
+Width: 1000
+EndChar
+StartChar: e
+Encoding: 101 101
+Width: 1000
+EndChar
+StartChar: f
+Encoding: 102 102
+Width: 1000
+EndChar
+StartChar: g
+Encoding: 103 103
+Width: 1000
+EndChar
+StartChar: h
+Encoding: 104 104
+Width: 1000
+EndChar
+StartChar: i
+Encoding: 105 105
+Width: 1000
+EndChar
+StartChar: j
+Encoding: 106 106
+Width: 1000
+EndChar
+StartChar: k
+Encoding: 107 107
+Width: 1000
+EndChar
+StartChar: l
+Encoding: 108 108
+Width: 1000
+EndChar
+StartChar: m
+Encoding: 109 109
+Width: 1000
+EndChar
+StartChar: n
+Encoding: 110 110
+Width: 1000
+EndChar
+StartChar: o
+Encoding: 111 111
+Width: 1000
+EndChar
+StartChar: p
+Encoding: 112 112
+Width: 1000
+EndChar
+StartChar: q
+Encoding: 113 113
+Width: 1000
+EndChar
+StartChar: r
+Encoding: 114 114
+Width: 1000
+EndChar
+StartChar: s
+Encoding: 115 115
+Width: 1000
+EndChar
+StartChar: t
+Encoding: 116 116
+Width: 1000
+EndChar
+StartChar: u
+Encoding: 117 117
+Width: 1000
+EndChar
+StartChar: v
+Encoding: 118 118
+Width: 1000
+EndChar
+StartChar: w
+Encoding: 119 119
+Width: 1000
+EndChar
+StartChar: x
+Encoding: 120 120
+Width: 1000
+EndChar
+StartChar: y
+Encoding: 121 121
+Width: 1000
+EndChar
+StartChar: z
+Encoding: 122 122
+Width: 1000
+EndChar
+StartChar: braceleft
+Encoding: 123 123
+Width: 1000
+EndChar
+StartChar: bar
+Encoding: 124 124
+Width: 1000
+EndChar
+StartChar: braceright
+Encoding: 125 125
+Width: 1000
+EndChar
+StartChar: asciitilde
+Encoding: 126 126
+Width: 1000
+EndChar
+StartChar: nonbreakingspace
+Encoding: 160 160
+Width: 1000
+EndChar
+StartChar: exclamdown
+Encoding: 161 161
+Width: 1000
+EndChar
+StartChar: cent
+Encoding: 162 162
+Width: 1000
+EndChar
+StartChar: sterling
+Encoding: 163 163
+Width: 1000
+EndChar
+StartChar: currency
+Encoding: 164 164
+Width: 1000
+EndChar
+StartChar: yen
+Encoding: 165 165
+Width: 1000
+EndChar
+StartChar: brokenbar
+Encoding: 166 166
+Width: 1000
+EndChar
+StartChar: section
+Encoding: 167 167
+Width: 1000
+EndChar
+StartChar: dieresis
+Encoding: 168 168
+Width: 1000
+EndChar
+StartChar: copyright
+Encoding: 169 169
+Width: 1000
+EndChar
+StartChar: ordfeminine
+Encoding: 170 170
+Width: 1000
+EndChar
+StartChar: guillemotleft
+Encoding: 171 171
+Width: 1000
+EndChar
+StartChar: logicalnot
+Encoding: 172 172
+Width: 1000
+EndChar
+StartChar: softhyphen
+Encoding: 173 173
+Width: 1000
+EndChar
+StartChar: registered
+Encoding: 174 174
+Width: 1000
+EndChar
+StartChar: macron
+Encoding: 175 175
+Width: 1000
+EndChar
+StartChar: degree
+Encoding: 176 176
+Width: 1000
+EndChar
+StartChar: plusminus
+Encoding: 177 177
+Width: 1000
+EndChar
+StartChar: twosuperior
+Encoding: 178 178
+Width: 1000
+EndChar
+StartChar: threesuperior
+Encoding: 179 179
+Width: 1000
+EndChar
+StartChar: acute
+Encoding: 180 180
+Width: 1000
+EndChar
+StartChar: mu
+Encoding: 181 181
+Width: 1000
+EndChar
+StartChar: paragraph
+Encoding: 182 182
+Width: 1000
+EndChar
+StartChar: periodcentered
+Encoding: 183 183
+Width: 1000
+EndChar
+StartChar: cedilla
+Encoding: 184 184
+Width: 1000
+EndChar
+StartChar: onesuperior
+Encoding: 185 185
+Width: 1000
+EndChar
+StartChar: ordmasculine
+Encoding: 186 186
+Width: 1000
+EndChar
+StartChar: guillemotright
+Encoding: 187 187
+Width: 1000
+EndChar
+StartChar: onequarter
+Encoding: 188 188
+Width: 1000
+EndChar
+StartChar: onehalf
+Encoding: 189 189
+Width: 1000
+EndChar
+StartChar: threequarters
+Encoding: 190 190
+Width: 1000
+EndChar
+StartChar: questiondown
+Encoding: 191 191
+Width: 1000
+EndChar
+StartChar: Agrave
+Encoding: 192 192
+Width: 1000
+EndChar
+StartChar: Aacute
+Encoding: 193 193
+Width: 1000
+EndChar
+StartChar: Acircumflex
+Encoding: 194 194
+Width: 1000
+EndChar
+StartChar: Atilde
+Encoding: 195 195
+Width: 1000
+EndChar
+StartChar: Adieresis
+Encoding: 196 196
+Width: 1000
+EndChar
+StartChar: Aring
+Encoding: 197 197
+Width: 1000
+EndChar
+StartChar: AE
+Encoding: 198 198
+Width: 1000
+EndChar
+StartChar: Ccedilla
+Encoding: 199 199
+Width: 1000
+EndChar
+StartChar: Egrave
+Encoding: 200 200
+Width: 1000
+EndChar
+StartChar: Eacute
+Encoding: 201 201
+Width: 1000
+EndChar
+StartChar: Ecircumflex
+Encoding: 202 202
+Width: 1000
+EndChar
+StartChar: Edieresis
+Encoding: 203 203
+Width: 1000
+EndChar
+StartChar: Igrave
+Encoding: 204 204
+Width: 1000
+EndChar
+StartChar: Iacute
+Encoding: 205 205
+Width: 1000
+EndChar
+StartChar: Icircumflex
+Encoding: 206 206
+Width: 1000
+EndChar
+StartChar: Idieresis
+Encoding: 207 207
+Width: 1000
+EndChar
+StartChar: Eth
+Encoding: 208 208
+Width: 1000
+EndChar
+StartChar: Ntilde
+Encoding: 209 209
+Width: 1000
+EndChar
+StartChar: Ograve
+Encoding: 210 210
+Width: 1000
+EndChar
+StartChar: Oacute
+Encoding: 211 211
+Width: 1000
+EndChar
+StartChar: Ocircumflex
+Encoding: 212 212
+Width: 1000
+EndChar
+StartChar: Otilde
+Encoding: 213 213
+Width: 1000
+EndChar
+StartChar: Odieresis
+Encoding: 214 214
+Width: 1000
+EndChar
+StartChar: multiply
+Encoding: 215 215
+Width: 1000
+EndChar
+StartChar: Oslash
+Encoding: 216 216
+Width: 1000
+EndChar
+StartChar: Ugrave
+Encoding: 217 217
+Width: 1000
+EndChar
+StartChar: Uacute
+Encoding: 218 218
+Width: 1000
+EndChar
+StartChar: Ucircumflex
+Encoding: 219 219
+Width: 1000
+EndChar
+StartChar: Udieresis
+Encoding: 220 220
+Width: 1000
+EndChar
+StartChar: Yacute
+Encoding: 221 221
+Width: 1000
+EndChar
+StartChar: Thorn
+Encoding: 222 222
+Width: 1000
+EndChar
+StartChar: germandbls
+Encoding: 223 223
+Width: 1000
+EndChar
+StartChar: agrave
+Encoding: 224 224
+Width: 1000
+EndChar
+StartChar: aacute
+Encoding: 225 225
+Width: 1000
+EndChar
+StartChar: acircumflex
+Encoding: 226 226
+Width: 1000
+EndChar
+StartChar: atilde
+Encoding: 227 227
+Width: 1000
+EndChar
+StartChar: adieresis
+Encoding: 228 228
+Width: 1000
+EndChar
+StartChar: aring
+Encoding: 229 229
+Width: 1000
+EndChar
+StartChar: ae
+Encoding: 230 230
+Width: 1000
+EndChar
+StartChar: ccedilla
+Encoding: 231 231
+Width: 1000
+EndChar
+StartChar: egrave
+Encoding: 232 232
+Width: 1000
+EndChar
+StartChar: eacute
+Encoding: 233 233
+Width: 1000
+EndChar
+StartChar: ecircumflex
+Encoding: 234 234
+Width: 1000
+EndChar
+StartChar: edieresis
+Encoding: 235 235
+Width: 1000
+EndChar
+StartChar: igrave
+Encoding: 236 236
+Width: 1000
+EndChar
+StartChar: iacute
+Encoding: 237 237
+Width: 1000
+EndChar
+StartChar: icircumflex
+Encoding: 238 238
+Width: 1000
+EndChar
+StartChar: idieresis
+Encoding: 239 239
+Width: 1000
+EndChar
+StartChar: eth
+Encoding: 240 240
+Width: 1000
+EndChar
+StartChar: ntilde
+Encoding: 241 241
+Width: 1000
+EndChar
+StartChar: ograve
+Encoding: 242 242
+Width: 1000
+EndChar
+StartChar: oacute
+Encoding: 243 243
+Width: 1000
+EndChar
+StartChar: ocircumflex
+Encoding: 244 244
+Width: 1000
+EndChar
+StartChar: otilde
+Encoding: 245 245
+Width: 1000
+EndChar
+StartChar: odieresis
+Encoding: 246 246
+Width: 1000
+EndChar
+StartChar: divide
+Encoding: 247 247
+Width: 1000
+EndChar
+StartChar: oslash
+Encoding: 248 248
+Width: 1000
+EndChar
+StartChar: ugrave
+Encoding: 249 249
+Width: 1000
+EndChar
+StartChar: uacute
+Encoding: 250 250
+Width: 1000
+EndChar
+StartChar: ucircumflex
+Encoding: 251 251
+Width: 1000
+EndChar
+StartChar: udieresis
+Encoding: 252 252
+Width: 1000
+EndChar
+StartChar: yacute
+Encoding: 253 253
+Width: 1000
+EndChar
+StartChar: thorn
+Encoding: 254 254
+Width: 1000
+EndChar
+StartChar: ydieresis
+Encoding: 255 255
+Width: 1000
+EndChar
+StartChar: uni03A9
+Encoding: 937 937
+Width: 760
+Flags: W
+HStem: 0 86.5<55 192 560 711> 662.5 82.6191<368 400>
+VStem: 48.5 285.5<1 81> 56.5 100.5<368 416> 432.5 285<1 81> 610.5 99<368 416>
+Fore
+48.5 86.5 m 1
+ 208.5 86.5 l 1
+ 107.167 171.167 56.5 274.5 56.5 396.5 c 1
+ 56.7101 536.75 118.58 644.249 209.5 699.75 c 1
+ 297.509 759.342 465.523 760.85 554.25 703.5 c 1
+ 642.338 648.475 711.166 540.692 709.5 396.5 c 1
+ 709.5 274.5 658.833 171.167 557.5 86.5 c 1
+ 717.5 86.5 l 1
+ 717.5 0 l 1
+ 432.5 0 l 1
+ 432.5 81 l 1
+ 551.167 136.333 610.5 236.5 610.5 381.5 c 1
+ 613.683 531.395 525.526 663.23 384.5 662.5 c 1
+ 242.961 665.005 154.417 531.689 157 386.5 c 1
+ 157 239.5 216 137.667 334 81 c 1
+ 334 0 l 1
+ 48.5 0 l 1
+ 48.5 86.5 l 1
+EndSplineSet
+MinimumDistance: x5,-1 
+EndChar
+StartChar: sigma
+Encoding: 963 963
+Width: 654
+Flags: W
+HStem: -11.9998 73.9998<282 299.31> 458 73<466 594> 468.5 74.5483<280.625 302.587>
+VStem: 34 92.5<243 265 265.575 298.829> 440 91.5<243 291>
+Fore
+609.5 531 m 1
+ 609.5 458 l 1
+ 465 458 l 1
+ 509.333 416.667 531.5 352.333 531.5 265 c 0
+ 531.5 170 507.25 100.083 458.75 55.25 c 1
+ 367.585 -35.1072 191 -34.6289 104 58 c 1
+ 57.333 104.667 34 173.833 34 265.5 c 0
+ 34 359.833 58.25 429.667 106.75 475 c 1
+ 176.138 537.884 259.745 558.789 367 531 c 1
+ 609.5 531 l 1
+280.5 468.5 m 1
+ 180.415 465.592 122.839 382.568 126.5 265 c 1
+ 124.033 145.734 177.982 64.8142 282 62 c 1
+ 387.637 63.1845 442.118 149.124 440 265.5 c 1
+ 439.941 377.605 391.876 470.041 280.5 468.5 c 1
+EndSplineSet
+MinimumDistance: x3,-1 
+EndChar
+StartChar: psi
+Encoding: 968 968
+Width: 748
+Flags: W
+HStem: -203.5 734.5<320 410>
+VStem: 61 89.5<244 530> 320 90<-188 -12 65 530> 579 89.5<244 530>
+Fore
+61 531 m 1
+ 150.5 531 l 1
+ 150.5 269 l 1
+ 151.992 173.54 157.865 130.981 213.25 92.75 c 1
+ 239.083 75.583 274.667 65.833 320 63.5 c 1
+ 320 531 l 1
+ 410 531 l 1
+ 410 63.5 l 1
+ 489.519 66.7047 544.824 98.0574 565.75 154.25 c 1
+ 574.583 179.75 579 218 579 269 c 2
+ 579 531 l 1
+ 668.5 531 l 1
+ 668.5 272 l 1
+ 666.618 133.548 653.5 84.7044 571.5 29.25 c 1
+ 532.5 4.08301 478.667 -9.66699 410 -12 c 1
+ 410 -203.5 l 1
+ 320 -203.5 l 1
+ 320 -12 l 1
+ 229.595 -8.79161 164.247 11.9517 118.75 61.25 c 1
+ 67.0712 119.571 62.4383 155.542 61 272 c 1
+ 61 531 l 1
+EndSplineSet
+MinimumDistance: x11,-1 
+EndChar
+StartChar: arrowright
+Encoding: 8594 8594
+Width: 1035
+Flags: W
+HStem: 233 50.5<55 836>
+VStem: 39.5 944.5<249 271>
+Fore
+777.5 438 m 1
+ 848.958 360.788 901.645 310.333 984 271.5 c 1
+ 984 249 l 1
+ 897.46 204.953 850.008 159.158 777 78.5 c 1
+ 738.5 78.5 l 1
+ 769.833 145.5 802.667 197 837 233 c 1
+ 39.5 233 l 1
+ 39.5 283.5 l 1
+ 837 283.5 l 1
+ 782.642 353.947 781.915 354.515 739.5 438 c 1
+ 777.5 438 l 1
+EndSplineSet
+MinimumDistance: x1,-1 
+EndChar
+StartChar: gradient
+Encoding: 8711 8711
+Width: 648
+Flags: W
+HStem: 652.5 41<134 551>
+DStem: 14.5 693.5 132.5 652.5 300.5 0 332 169 552 652.5 614.5 693.5 332 169 300.5 0
+Fore
+14.5 693.5 m 1
+ 614.5 693.5 l 1
+ 300.5 0 l 1
+ 14.5 693.5 l 1
+132.5 652.5 m 1
+ 332 169 l 1
+ 552 652.5 l 1
+ 132.5 652.5 l 1
+EndSplineSet
+MinimumDistance: x1,-1 
+EndChar
+StartChar: uni2219
+Encoding: 8729 8729
+Width: 294
+Flags: W
+HStem: 309.5 102.5<108 194>
+VStem: 92.5 102.5<325 411>
+Fore
+92.5 309.5 m 1
+ 92.5 412 l 1
+ 195 412 l 1
+ 195 309.5 l 1
+ 92.5 309.5 l 1
+EndSplineSet
+MinimumDistance: x2,-1 
+EndChar
+StartChar: integral
+Encoding: 8747 8747
+Width: 291
+Flags: W
+VStem: 100.5 77.8252<327.709 474>
+Fore
+100.5 474 m 1
+ 109 739.5 l 1
+ 114.542 833.138 134.534 923.622 217.5 931.5 c 1
+ 247.522 933.096 280.447 905.565 280 878 c 1
+ 280.849 848.918 261.127 825.941 234 826 c 1
+ 222.333 826 209.667 832 196 844 c 1
+ 176.357 863.99 153.522 851.038 156 822 c 1
+ 156 808 157.5 783.833 160.5 749.5 c 1
+ 184.169 438.285 182.123 484.679 171 123 c 1
+ 168.333 24.667 153.333 -41.833 126 -76.5 c 1
+ 101.122 -110.714 47.8807 -123.362 16.5 -93 c 1
+ -3.17021 -74.8996 -6.32757 -33.0899 12.75 -13.5 c 1
+ 30.257 5.46361 62.8625 4.28698 79.5 -16 c 1
+ 93.653 -31.3569 104.804 -38.4598 118 -25 c 1
+ 129.244 -4.11259 121.392 22.5244 119 58.5 c 1
+ 106.667 163.5 100.5 302 100.5 474 c 1
+EndSplineSet
+EndChar
+EndChars
+EndSplineFont

engine/libraries/oglft/tests/Demo3UnicodeExample2.h

@@ -0,0 +1,470 @@
+/*
+ * Demo3UnicodeExample2.h: Additional symbols for demo3 example.
+ * Copyright (C) 2002 lignum Computing, Inc. <oglft@lignumcomputing.com>
+ * $Id$
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+FT_Byte lCSymbols_ttf[] = {
+0,1,0,0,0,12,0,128,0,3,0,64,79,83,47,50,
+81,97,77,142,0,0,0,204,0,0,0,86,99,109,97,112,
+224,46,4,241,0,0,1,36,0,0,1,82,99,118,116,32,
+4,48,5,221,0,0,2,120,0,0,0,34,103,108,121,102,
+109,46,45,11,0,0,2,156,0,0,18,254,104,101,97,100,
+211,187,118,221,0,0,21,156,0,0,0,54,104,104,101,97,
+6,115,1,120,0,0,21,212,0,0,0,36,104,109,116,120,
+28,67,1,223,0,0,21,248,0,0,0,100,107,101,114,110,
+251,84,252,187,0,0,22,92,0,0,0,162,108,111,99,97,
+51,201,56,104,0,0,23,0,0,0,0,52,109,97,120,112,
+0,94,1,24,0,0,23,52,0,0,0,32,110,97,109,101,
+31,28,131,163,0,0,23,84,0,0,3,167,112,111,115,116,
+142,120,183,88,0,0,26,252,0,0,1,4,0,1,3,232,
+1,144,0,5,0,12,0,200,0,200,0,0,0,200,0,200,
+0,200,0,0,0,200,0,49,1,2,0,0,2,0,5,3,
+0,0,0,0,0,0,0,0,0,3,16,0,0,8,0,0,
+0,0,0,0,0,0,80,102,69,100,0,64,0,32,224,25,
+2,234,255,52,0,90,2,234,0,204,0,0,0,1,0,0,
+0,0,0,0,0,0,0,3,0,0,0,3,0,0,0,28,
+0,1,0,0,0,0,0,76,0,3,0,1,0,0,0,28,
+0,4,0,48,0,0,0,8,0,8,0,2,0,0,33,4,
+224,10,224,25,255,255,0,0,33,4,224,0,224,16,255,255,
+222,255,32,4,31,255,0,1,0,0,0,0,0,0,0,0,
+0,0,1,6,0,0,1,0,0,0,0,0,0,0,1,3,
+0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,33,2,121,0,86,0,83,
+0,100,0,97,1,202,0,37,0,46,1,112,0,43,0,242,
+0,48,0,41,0,237,0,0,0,21,0,0,0,2,0,33,
+0,0,1,110,2,154,0,3,0,7,0,46,177,1,0,47,
+60,178,7,4,0,237,50,177,6,5,220,60,178,3,2,0,
+237,50,0,177,3,0,47,60,178,5,4,0,237,50,178,7,
+6,1,252,60,178,1,2,0,237,50,51,17,33,17,37,33,
+17,33,33,1,77,254,212,1,11,254,245,2,154,253,102,33,
+2,88,0,1,0,7,255,52,2,246,2,234,0,47,0,110,
+0,176,11,47,176,12,51,177,9,2,237,177,10,2,237,176,
+32,47,176,33,51,176,34,51,177,24,3,237,177,25,3,237,
+177,26,3,237,1,176,17,47,176,18,51,176,19,51,176,20,
+51,177,39,4,237,177,40,4,237,177,41,4,237,177,42,4,
+237,176,12,47,176,13,51,176,45,51,176,46,51,177,0,5,
+237,177,7,5,237,177,8,5,237,177,9,5,237,177,47,5,
+237,176,12,16,177,10,6,237,177,11,6,237,48,49,37,54,
+55,23,6,7,6,15,1,21,33,21,33,53,38,47,1,38,
+61,1,52,55,54,55,54,51,50,23,22,23,7,38,47,1,
+34,7,6,15,1,6,29,1,20,23,22,23,17,51,1,141,
+130,31,97,46,161,24,26,1,1,105,254,54,183,70,1,39,
+122,22,25,80,97,176,81,20,13,96,45,128,23,135,63,12,
+8,3,23,112,39,42,97,76,31,150,24,185,47,7,3,1,
+108,86,194,19,166,1,91,104,1,198,100,18,14,44,136,35,
+43,22,141,11,1,100,19,22,8,68,72,1,201,67,23,7,
+1,198,0,2,0,21,1,97,1,5,2,216,0,12,0,30,
+0,109,0,176,7,47,176,8,51,176,9,51,177,10,7,237,
+177,17,7,237,177,18,7,237,177,19,7,237,176,26,176,10,
+16,222,176,27,50,176,28,50,177,1,7,237,177,2,7,237,
+177,3,7,237,1,176,0,47,176,1,51,176,11,51,176,12,
+51,177,13,8,237,177,14,8,237,177,30,8,237,176,21,176,
+13,16,222,176,22,50,176,23,50,176,24,50,177,5,8,237,
+177,6,8,237,177,7,8,237,177,32,6,16,204,48,49,19,
+52,51,50,23,22,21,20,35,34,39,38,53,55,20,23,51,
+22,51,50,55,54,61,1,52,39,38,35,34,7,6,21,120,
+85,26,8,119,53,30,37,47,20,1,21,31,31,21,21,21,
+21,32,31,18,23,2,29,187,101,32,54,187,38,45,102,2,
+90,30,30,30,30,88,2,90,30,30,27,33,0,1,0,55,
+1,104,0,191,2,216,0,13,0,41,0,176,0,47,176,1,
+51,177,11,9,237,177,12,9,237,177,13,9,237,1,176,1,
+47,176,2,51,177,0,8,237,177,13,8,237,177,15,0,16,
+204,48,49,19,35,17,6,7,6,7,53,54,55,54,63,1,
+51,191,45,17,26,26,21,37,29,27,12,1,29,1,104,1,
+31,16,15,16,8,44,18,25,25,23,1,0,0,1,0,15,
+1,104,1,2,2,216,0,37,0,96,0,176,1,47,176,2,
+51,177,0,10,237,177,37,10,237,176,15,176,0,16,222,176,
+16,50,176,17,50,177,23,7,237,177,24,7,237,177,25,7,
+237,1,176,2,47,176,3,51,177,0,11,237,177,1,11,237,
+177,28,11,237,177,29,11,237,177,30,11,237,176,29,16,177,
+10,8,237,177,11,8,237,177,12,8,237,177,13,8,237,177,
+25,8,237,177,39,0,16,204,48,49,1,21,35,38,55,53,
+54,55,54,55,54,61,1,52,39,38,35,34,7,21,7,39,
+54,63,1,50,23,22,31,1,20,15,1,6,7,6,15,1,
+1,2,242,2,36,21,38,60,21,21,41,13,15,56,13,3,
+46,8,82,29,70,31,10,2,1,38,1,21,48,52,13,6,
+1,147,43,37,42,1,24,32,49,28,28,25,1,43,16,5,
+50,1,23,5,89,15,2,50,17,20,15,44,43,1,23,41,
+44,17,10,0,0,1,0,21,1,97,1,6,2,216,0,52,
+0,133,0,176,48,47,176,49,51,176,50,51,177,2,7,237,
+177,3,7,237,177,4,7,237,176,13,176,2,16,222,176,14,
+50,176,15,50,177,17,0,237,177,18,0,237,177,19,0,237,
+176,26,176,17,16,222,176,27,50,176,28,50,177,33,7,237,
+177,34,7,237,177,35,7,237,1,176,21,47,176,22,51,176,
+23,51,176,24,51,176,35,51,177,38,8,237,177,39,8,237,
+177,40,8,237,177,41,8,237,176,8,47,176,9,51,176,10,
+51,176,11,51,177,44,12,237,177,45,12,237,177,46,12,237,
+177,54,45,16,204,48,49,19,55,22,51,50,55,61,1,54,
+61,1,52,39,38,35,34,7,55,23,50,55,54,61,1,52,
+39,38,35,34,7,39,54,55,54,51,50,23,49,22,21,23,
+20,7,22,31,1,20,7,6,35,34,39,38,22,44,15,57,
+47,21,8,40,15,17,13,19,5,7,55,16,4,34,12,14,
+56,10,45,13,63,16,18,59,31,17,1,51,59,8,2,57,
+30,37,71,32,11,1,201,6,72,41,1,1,15,17,1,47,
+18,6,4,39,1,38,11,12,1,38,14,5,66,8,73,17,
+5,42,23,29,1,51,24,13,60,17,65,32,17,57,20,0,
+0,2,0,6,1,104,1,4,2,215,0,10,0,13,0,114,
+0,176,1,47,176,2,51,176,8,51,176,9,51,177,3,13,
+237,177,6,13,237,177,7,13,237,177,11,13,237,177,13,13,
+237,177,4,6,16,204,177,5,6,16,204,177,10,1,16,204,
+177,0,1,16,204,1,176,0,47,176,1,51,176,11,51,176,
+12,51,177,5,8,237,177,6,8,237,177,9,8,237,177,10,
+8,237,177,4,6,16,204,177,8,6,16,204,177,7,6,16,
+204,177,3,1,16,204,177,2,1,16,204,177,15,7,16,204,
+48,49,19,53,35,53,55,51,21,51,21,35,21,39,53,7,
+166,160,168,36,50,50,44,115,1,104,88,41,237,237,41,88,
+129,165,165,0,0,1,0,21,1,97,1,9,2,210,0,36,
+0,102,0,176,32,47,176,33,51,176,34,51,177,3,7,237,
+177,4,7,237,177,5,7,237,176,12,176,3,16,222,176,13,
+50,176,14,50,177,22,13,237,177,23,13,237,177,24,13,237,
+176,19,176,22,16,222,176,20,50,177,17,10,237,177,18,10,
+237,1,176,7,47,176,8,51,176,9,51,176,10,51,176,24,
+51,177,27,12,237,177,28,12,237,177,29,12,237,177,30,12,
+237,177,38,29,16,204,48,49,19,55,22,31,1,50,55,54,
+61,1,52,39,38,35,34,7,39,55,51,21,35,7,54,51,
+50,23,21,22,29,1,20,7,6,35,34,39,38,21,47,9,
+47,15,51,19,7,46,15,17,44,22,43,36,182,146,20,33,
+36,66,32,16,57,30,38,76,30,9,1,200,4,58,10,1,
+49,18,21,1,59,19,5,35,5,189,44,98,23,55,1,27,
+35,1,75,36,19,60,19,0,0,2,0,19,1,97,1,6,
+2,216,0,29,0,47,0,136,0,176,17,47,176,18,51,176,
+19,51,177,33,7,237,177,34,7,237,177,35,7,237,176,42,
+176,33,16,222,176,43,50,176,44,50,176,45,50,177,8,13,
+237,177,9,13,237,177,10,13,237,176,2,176,8,16,222,176,
+3,50,176,4,50,177,25,7,237,177,26,7,237,177,27,7,
+237,177,28,7,237,1,176,21,47,176,22,51,176,23,51,176,
+24,51,177,6,10,237,177,7,10,237,176,10,47,176,37,51,
+176,38,51,176,39,51,176,40,51,177,12,8,237,177,13,8,
+237,177,14,8,237,177,15,8,237,177,49,14,16,204,48,49,
+1,7,38,35,34,7,6,21,54,51,50,23,22,29,1,20,
+7,6,35,34,39,38,39,53,52,55,54,51,50,23,7,20,
+23,22,51,50,55,54,61,1,52,39,38,39,35,34,7,6,
+0,255,45,13,49,48,23,13,32,57,64,30,14,52,27,36,
+56,35,35,1,117,7,8,73,24,177,36,18,21,46,17,6,
+41,11,14,5,47,19,7,2,125,4,58,57,30,55,49,57,
+28,33,1,73,34,18,41,41,94,2,184,11,1,63,186,52,
+25,11,49,16,19,1,56,19,6,1,44,16,0,1,0,24,
+1,104,1,6,2,210,0,16,0,43,0,176,0,47,176,16,
+51,177,1,10,237,177,2,10,237,176,9,47,176,10,47,1,
+176,0,47,176,1,51,177,2,14,237,177,3,14,237,177,18,
+2,16,204,48,49,19,53,51,21,6,7,6,7,6,7,35,
+54,55,52,55,54,55,24,238,71,42,6,4,14,3,46,5,
+86,1,17,19,2,166,44,35,75,120,16,15,46,55,140,129,
+2,1,25,21,0,3,0,20,1,97,1,7,2,216,0,32,
+0,51,0,69,0,207,0,176,24,47,176,25,51,176,26,51,
+177,55,7,237,177,56,7,237,177,57,7,237,176,17,176,55,
+16,222,176,31,50,176,64,50,176,65,50,176,66,50,177,36,
+7,237,177,37,7,237,177,38,7,237,176,3,176,36,16,222,
+176,45,50,176,46,50,176,47,50,177,5,7,237,177,6,7,
+237,177,7,7,237,1,176,28,47,176,29,51,176,30,51,176,
+31,51,177,52,8,237,177,53,8,237,177,68,8,237,177,69,
+8,237,176,1,47,176,2,51,176,3,51,176,27,51,177,33,
+8,237,177,34,8,237,177,50,8,237,177,51,8,237,176,40,
+47,176,41,51,176,42,51,176,43,51,177,12,8,237,177,13,
+8,237,177,14,8,237,177,15,8,237,176,59,47,176,60,51,
+176,61,51,176,62,51,177,17,8,237,177,18,8,237,177,19,
+8,237,177,20,8,237,177,21,8,237,177,22,8,237,177,71,
+21,16,204,48,49,19,38,53,52,55,54,51,50,31,1,21,
+23,22,29,1,20,7,22,23,20,29,1,20,7,6,35,34,
+39,38,61,1,52,55,39,20,23,22,51,50,55,54,61,1,
+52,39,38,35,34,15,1,6,21,7,20,23,22,51,50,55,
+54,61,1,52,39,38,35,34,7,6,21,90,54,54,23,28,
+63,29,1,1,12,54,67,2,58,28,34,72,33,16,67,6,
+37,11,12,40,14,5,35,12,13,38,16,1,4,15,40,16,
+19,48,19,7,41,16,19,47,19,7,2,47,20,55,59,25,
+10,46,1,1,1,21,25,1,53,20,22,69,1,1,1,67,
+30,14,52,26,33,1,73,19,77,42,13,4,34,10,11,1,
+39,15,5,32,1,11,11,170,48,19,8,40,15,17,1,48,
+20,7,40,15,17,0,0,2,0,21,1,97,1,7,2,216,
+0,35,0,58,0,133,0,176,32,47,176,33,51,176,34,51,
+177,2,7,237,177,3,7,237,177,4,7,237,176,11,176,2,
+16,222,176,12,50,176,13,50,177,7,13,237,177,8,13,237,
+177,53,13,237,177,54,13,237,177,55,13,237,176,41,176,8,
+16,222,176,42,50,176,43,50,177,21,7,237,177,22,7,237,
+177,23,7,237,1,176,16,47,176,17,51,176,18,51,176,19,
+51,177,13,8,237,177,49,8,237,177,50,8,237,177,51,8,
+237,176,6,47,176,7,51,176,8,51,176,9,51,177,28,10,
+237,177,29,10,237,177,30,10,237,48,49,19,55,22,51,50,
+55,54,53,55,39,6,15,1,34,39,53,38,61,1,52,55,
+54,51,50,31,1,21,23,22,21,20,7,6,35,34,39,55,
+52,39,34,49,38,35,34,15,1,21,7,21,6,21,20,23,
+22,51,50,55,54,53,28,43,11,50,61,19,5,1,1,27,
+52,8,65,30,14,54,27,34,72,34,1,4,15,60,30,41,
+76,22,179,37,1,14,18,45,20,1,1,7,39,15,19,52,
+15,4,1,189,4,58,79,24,28,2,8,43,4,1,58,1,
+27,33,1,73,34,17,64,1,1,8,36,67,132,43,22,67,
+185,54,22,9,45,1,1,1,1,18,21,50,21,8,52,14,
+15,0,0,1,0,0,255,243,1,2,2,234,0,3,0,20,
+176,0,47,176,1,47,176,2,47,176,3,47,1,177,5,2,
+47,204,48,49,21,19,51,3,212,46,214,12,2,246,253,10,
+0,2,0,21,255,249,1,5,1,112,0,12,0,31,0,113,
+0,176,7,47,176,8,51,176,9,51,177,10,7,237,177,17,
+7,237,177,18,7,237,177,19,7,237,176,26,176,10,16,222,
+176,27,50,176,28,50,177,1,7,237,177,2,7,237,177,3,
+7,237,1,176,0,47,176,1,51,176,11,51,176,12,51,177,
+13,8,237,177,14,8,237,177,30,8,237,177,31,8,237,176,
+21,176,13,16,222,176,22,50,176,23,50,176,24,50,177,5,
+8,237,177,6,8,237,177,7,8,237,177,33,6,16,204,48,
+49,55,52,51,50,23,22,21,20,35,34,39,38,53,55,20,
+23,51,22,51,50,55,54,61,1,52,39,38,35,34,7,6,
+21,21,120,85,26,8,119,53,30,37,47,20,1,21,31,31,
+21,21,21,21,32,31,18,23,181,187,101,32,54,187,38,45,
+102,2,90,30,30,30,30,88,2,90,30,30,27,33,89,0,
+0,1,0,55,0,0,0,191,1,112,0,13,0,42,0,177,
+0,15,63,176,1,51,177,11,9,237,177,12,9,237,177,13,
+9,237,1,176,1,47,176,2,51,177,0,8,237,177,13,8,
+237,177,15,0,16,204,48,49,51,35,17,6,7,6,7,53,
+54,55,54,63,1,51,191,45,17,26,26,21,37,29,27,12,
+1,29,1,31,16,15,16,8,44,18,25,25,23,1,0,1,
+0,15,0,0,1,2,1,112,0,38,0,101,0,177,1,15,
+63,176,2,51,177,0,10,237,177,38,10,237,176,14,176,0,
+16,222,176,15,50,176,16,50,177,23,7,237,177,24,7,237,
+177,25,7,237,1,176,2,47,176,3,51,177,0,11,237,177,
+1,11,237,177,28,11,237,177,29,11,237,177,30,11,237,177,
+31,11,237,176,28,16,177,9,8,237,177,10,8,237,177,11,
+8,237,177,12,8,237,177,25,8,237,177,40,0,16,204,48,
+49,37,21,35,38,55,54,55,54,55,54,61,1,52,39,38,
+35,34,7,29,1,7,39,54,63,1,50,23,21,22,29,1,
+20,15,1,6,7,6,15,1,1,2,242,2,36,21,38,60,
+21,21,41,13,15,56,13,3,46,8,82,29,70,31,13,38,
+1,21,48,52,13,6,43,43,38,42,24,32,49,28,28,25,
+1,43,16,5,50,1,1,22,5,89,15,2,50,1,22,28,
+1,44,43,1,23,41,44,17,10,0,0,1,0,21,255,249,
+1,6,1,112,0,51,0,133,0,176,47,47,176,48,51,176,
+49,51,177,2,7,237,177,3,7,237,177,4,7,237,176,11,
+176,2,16,222,176,12,50,176,13,50,177,15,0,237,177,16,
+0,237,177,17,0,237,176,24,176,15,16,222,176,25,50,176,
+26,50,177,31,7,237,177,32,7,237,177,33,7,237,1,176,
+19,47,176,20,51,176,21,51,176,22,51,176,33,51,177,37,
+8,237,177,38,8,237,177,39,8,237,177,40,8,237,176,6,
+47,176,7,51,176,8,51,176,9,51,177,43,12,237,177,44,
+12,237,177,45,12,237,177,53,44,16,204,48,49,63,1,22,
+51,50,55,54,61,1,52,39,38,35,34,7,55,23,50,55,
+54,61,1,52,39,38,35,34,7,39,54,55,54,51,50,31,
+1,49,22,21,23,20,7,22,31,1,20,7,6,39,34,39,
+38,22,44,15,57,47,21,8,40,15,17,13,19,5,7,55,
+16,4,34,12,14,56,10,45,13,63,16,18,61,30,1,15,
+1,51,59,8,2,57,30,37,71,32,11,97,6,72,41,16,
+18,1,47,18,6,4,39,1,38,11,12,1,38,14,5,66,
+8,73,17,5,43,1,22,28,1,51,24,13,60,17,65,32,
+18,1,57,20,0,2,0,6,0,0,1,4,1,111,0,10,
+0,13,0,111,0,177,0,15,63,176,10,51,176,1,222,176,
+2,50,176,8,50,176,9,50,177,3,13,237,177,6,13,237,
+177,7,13,237,177,11,13,237,177,13,13,237,177,4,6,16,
+204,177,5,6,16,204,1,176,0,47,176,1,51,176,11,51,
+176,12,51,177,5,8,237,177,6,8,237,177,9,8,237,177,
+10,8,237,177,4,6,16,204,177,8,6,16,204,177,7,6,
+16,204,177,3,1,16,204,177,2,1,16,204,177,15,7,16,
+204,48,49,51,53,35,53,55,51,21,51,21,35,21,39,53,
+7,166,160,168,36,50,50,44,115,88,41,237,237,41,88,129,
+165,165,0,1,0,21,255,249,1,9,1,106,0,36,0,106,
+0,176,32,47,176,33,51,176,34,51,177,3,7,237,177,4,
+7,237,177,5,7,237,177,6,7,237,176,13,176,3,16,222,
+176,14,50,176,15,50,177,23,13,237,177,24,13,237,177,25,
+13,237,176,20,176,23,16,222,176,21,50,177,18,10,237,177,
+19,10,237,1,176,8,47,176,9,51,176,10,51,176,11,51,
+176,25,51,177,27,12,237,177,28,12,237,177,29,12,237,177,
+30,12,237,177,38,29,16,204,48,49,63,1,22,23,22,51,
+50,55,54,61,1,52,39,38,35,34,7,39,55,51,21,35,
+7,54,51,50,23,22,29,1,20,7,6,35,34,39,38,21,
+47,9,47,7,8,51,19,7,46,15,17,44,22,43,36,182,
+146,20,33,36,66,32,16,57,30,38,76,30,9,96,4,58,
+10,1,49,18,21,1,59,19,5,35,5,189,44,98,23,55,
+28,35,1,75,36,19,60,19,0,2,0,12,255,249,0,255,
+1,112,0,31,0,49,0,129,0,176,17,47,176,18,51,176,
+19,51,177,35,7,237,177,36,7,237,177,37,7,237,176,44,
+176,35,16,222,176,45,50,176,46,50,177,8,13,237,177,9,
+13,237,177,10,13,237,176,2,176,8,16,222,176,3,50,176,
+4,50,177,25,7,237,177,26,7,237,177,27,7,237,1,176,
+21,47,176,22,51,176,23,51,176,24,51,177,6,10,237,177,
+7,10,237,176,10,47,176,39,51,176,40,51,176,41,51,176,
+42,51,177,12,8,237,177,13,8,237,177,14,8,237,177,15,
+8,237,177,51,14,16,204,48,49,19,7,38,35,34,7,6,
+21,54,51,50,23,22,29,1,20,7,6,35,34,39,38,39,
+53,52,63,1,50,23,21,22,23,7,20,23,22,51,50,55,
+54,61,1,52,39,38,35,34,7,6,21,248,45,13,49,48,
+23,13,32,57,64,30,14,52,27,35,57,35,35,1,117,15,
+73,24,5,2,184,36,18,21,46,17,6,41,13,17,47,19,
+7,1,21,4,58,57,30,55,49,57,28,33,1,73,34,18,
+41,41,94,2,184,11,1,63,1,12,14,159,52,25,11,49,
+16,19,1,56,19,7,44,16,18,0,0,1,0,24,0,0,
+1,6,1,106,0,14,0,44,0,177,9,15,63,176,10,51,
+176,0,222,176,14,50,177,1,10,237,177,2,10,237,1,176,
+0,47,176,1,51,177,2,14,237,177,3,14,237,177,16,2,
+16,204,48,49,19,53,51,21,6,7,6,7,6,7,35,54,
+55,54,55,24,238,71,42,6,4,14,3,46,5,86,18,19,
+1,62,44,35,75,120,16,15,46,55,140,129,27,22,0,3,
+0,20,255,249,1,7,1,112,0,29,0,47,0,65,0,203,
+0,176,20,47,176,21,51,176,22,51,177,51,7,237,177,52,
+7,237,177,53,7,237,176,14,176,51,16,222,176,27,50,176,
+60,50,176,61,50,176,62,50,177,33,7,237,177,34,7,237,
+177,35,7,237,176,3,176,33,16,222,176,42,50,176,43,50,
+176,44,50,177,5,7,237,177,6,7,237,177,7,7,237,1,
+176,24,47,176,25,51,176,26,51,176,27,51,177,48,8,237,
+177,49,8,237,177,64,8,237,177,65,8,237,176,1,47,176,
+2,51,176,3,51,176,23,51,177,30,8,237,177,31,8,237,
+177,46,8,237,177,47,8,237,176,37,47,176,38,51,176,39,
+51,176,40,51,177,9,8,237,177,10,8,237,177,11,8,237,
+177,12,8,237,176,55,47,176,56,51,176,57,51,176,58,51,
+177,14,8,237,177,15,8,237,177,16,8,237,177,17,8,237,
+177,18,8,237,177,67,17,16,204,48,49,55,38,53,52,55,
+54,51,50,23,22,29,1,20,7,22,23,20,49,20,7,6,
+35,34,39,38,61,1,52,55,50,39,20,23,22,51,50,55,
+54,61,1,52,39,38,35,34,7,6,21,7,20,23,22,51,
+50,55,54,61,1,52,39,38,35,34,7,6,21,90,54,54,
+23,28,63,29,14,54,67,2,58,28,34,72,33,16,65,2,
+6,37,11,12,40,14,5,35,12,13,38,16,5,15,40,16,
+19,48,19,7,41,16,19,47,19,7,199,20,55,59,25,10,
+46,22,27,1,53,20,22,69,3,67,30,14,52,26,33,1,
+72,20,77,42,13,4,34,10,11,1,39,15,5,32,11,12,
+170,48,19,8,40,15,17,1,48,20,7,40,15,17,0,2,
+0,21,255,249,1,7,1,112,0,33,0,52,0,133,0,176,
+29,47,176,30,51,176,31,51,177,2,7,237,177,3,7,237,
+177,4,7,237,176,11,176,2,16,222,176,12,50,176,13,50,
+177,7,13,237,177,8,13,237,177,47,13,237,177,48,13,237,
+177,49,13,237,176,39,176,8,16,222,176,40,50,176,41,50,
+177,20,7,237,177,21,7,237,177,22,7,237,1,176,15,47,
+176,16,51,176,17,51,176,18,51,177,13,8,237,177,43,8,
+237,177,44,8,237,177,45,8,237,176,6,47,176,7,51,176,
+8,51,176,9,51,177,25,10,237,177,26,10,237,177,27,10,
+237,48,49,63,1,22,51,50,55,54,53,55,39,6,15,1,
+34,39,38,61,1,52,55,54,51,50,31,1,22,21,20,7,
+6,35,34,39,38,55,52,39,34,49,38,35,34,7,6,21,
+20,23,22,51,50,55,54,53,28,43,11,50,40,22,23,1,
+1,27,52,8,65,30,14,54,27,34,72,34,5,15,60,30,
+41,76,22,3,182,37,1,14,18,46,20,8,39,15,19,52,
+15,4,85,4,58,35,36,60,2,8,43,4,1,58,27,34,
+1,73,34,17,64,10,36,67,132,43,22,67,11,174,54,22,
+9,46,20,22,50,21,8,52,14,15,0,0,0,1,0,0,
+0,0,0,0,233,217,10,104,95,15,60,245,0,19,3,232,
+0,0,0,0,184,207,153,237,0,0,0,0,184,207,153,237,
+0,0,255,52,2,246,2,234,0,0,0,8,0,2,0,0,
+0,0,0,0,0,1,0,0,3,32,255,56,0,90,2,142,
+0,0,255,152,2,246,0,1,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,25,1,176,0,33,0,0,0,0,
+1,77,0,0,2,142,0,7,1,15,0,21,0,235,0,55,
+1,31,0,15,1,23,0,21,1,23,0,6,1,30,0,21,
+1,28,0,19,1,25,0,24,1,28,0,20,1,23,0,21,
+1,27,0,0,1,15,0,21,0,235,0,55,1,31,0,15,
+1,25,0,21,1,22,0,6,1,31,0,21,1,21,0,12,
+1,25,0,24,1,28,0,20,1,31,0,21,0,0,0,1,
+0,0,0,158,0,1,0,24,0,96,0,4,255,208,0,4,
+0,4,0,0,0,4,0,14,255,122,0,5,0,5,0,0,
+0,5,0,14,255,152,0,6,0,6,0,0,0,6,0,14,
+255,150,0,7,0,14,255,122,0,8,0,14,255,122,0,9,
+0,14,255,115,0,10,0,14,255,115,0,11,0,14,255,92,
+0,12,0,14,255,115,0,13,0,14,255,115,0,14,0,14,
+255,211,0,14,0,15,255,107,0,14,0,16,255,85,0,14,
+0,17,255,107,0,14,0,18,255,115,0,14,0,19,255,92,
+0,14,0,20,255,100,0,14,0,21,255,107,0,14,0,22,
+255,130,0,14,0,23,255,100,0,14,0,24,255,107,0,0,
+0,0,0,43,0,43,0,43,0,171,1,16,1,64,1,172,
+2,58,2,140,2,246,3,128,3,180,4,125,5,19,5,42,
+5,146,5,193,6,47,6,188,7,11,7,118,7,255,8,49,
+8,241,9,127,0,1,0,0,0,25,0,70,0,3,0,0,
+0,0,0,2,0,0,0,1,0,1,0,0,0,64,0,207,
+0,0,0,0,0,0,0,26,1,62,0,1,0,0,0,0,
+0,0,0,65,0,0,0,1,0,0,0,0,0,1,0,9,
+0,66,0,1,0,0,0,0,0,2,0,7,0,76,0,1,
+0,0,0,0,0,3,0,34,0,84,0,1,0,0,0,0,
+0,4,0,9,0,119,0,1,0,0,0,0,0,5,0,7,
+0,129,0,1,0,0,0,0,0,6,0,9,0,137,0,0,
+0,3,0,0,0,0,0,130,0,147,0,0,0,3,0,0,
+0,1,0,18,1,23,0,0,0,3,0,0,0,2,0,14,
+1,43,0,0,0,3,0,0,0,3,0,68,1,59,0,0,
+0,3,0,0,0,4,0,18,1,129,0,0,0,3,0,0,
+0,5,0,14,1,149,0,0,0,3,0,0,0,6,0,18,
+1,165,0,3,0,1,4,9,0,0,0,130,0,147,0,3,
+0,1,4,9,0,1,0,18,1,23,0,3,0,1,4,9,
+0,2,0,14,1,43,0,3,0,1,4,9,0,3,0,68,
+1,59,0,3,0,1,4,9,0,4,0,18,1,129,0,3,
+0,1,4,9,0,5,0,14,1,149,0,3,0,1,4,9,
+0,6,0,18,1,165,0,3,0,1,0,0,0,4,0,34,
+1,185,0,3,0,1,0,0,0,8,0,44,1,221,0,3,
+0,1,0,0,0,11,0,46,2,11,0,3,0,1,0,0,
+0,13,0,6,2,59,0,3,0,1,0,0,0,14,0,36,
+2,67,67,114,101,97,116,101,100,32,98,121,32,65,108,108,
+101,110,32,66,97,114,110,101,116,116,32,119,105,116,104,32,
+80,102,97,69,100,105,116,32,49,46,48,32,40,104,116,116,
+112,58,47,47,112,102,97,101,100,105,116,46,115,102,46,110,
+101,116,41,0,108,67,83,121,109,98,111,108,115,0,82,101,
+103,117,108,97,114,0,80,102,97,69,100,105,116,32,49,46,
+48,32,58,32,108,67,83,121,109,98,111,108,115,32,58,32,
+50,45,51,45,50,48,55,50,0,108,67,83,121,109,98,111,
+108,115,0,48,48,49,46,48,48,48,0,108,67,83,121,109,
+98,111,108,115,0,0,67,0,114,0,101,0,97,0,116,0,
+101,0,100,0,32,0,98,0,121,0,32,0,65,0,108,0,
+108,0,101,0,110,0,32,0,66,0,97,0,114,0,110,0,
+101,0,116,0,116,0,32,0,119,0,105,0,116,0,104,0,
+32,0,80,0,102,0,97,0,69,0,100,0,105,0,116,0,
+32,0,49,0,46,0,48,0,32,0,40,0,104,0,116,0,
+116,0,112,0,58,0,47,0,47,0,112,0,102,0,97,0,
+101,0,100,0,105,0,116,0,46,0,115,0,102,0,46,0,
+110,0,101,0,116,0,41,0,0,0,108,0,67,0,83,0,
+121,0,109,0,98,0,111,0,108,0,115,0,0,0,82,0,
+101,0,103,0,117,0,108,0,97,0,114,0,0,0,80,0,
+102,0,97,0,69,0,100,0,105,0,116,0,32,0,49,0,
+46,0,48,0,32,0,58,0,32,0,108,0,67,0,83,0,
+121,0,109,0,98,0,111,0,108,0,115,0,32,0,58,0,
+32,0,50,0,45,0,51,0,45,0,50,0,48,0,55,0,
+50,0,0,0,108,0,67,0,83,0,121,0,109,0,98,0,
+111,0,108,0,115,0,0,0,48,0,48,0,49,0,46,0,
+48,0,48,0,48,0,0,0,108,0,67,0,83,0,121,0,
+109,0,98,0,111,0,108,0,115,0,0,0,108,0,105,0,
+103,0,110,0,117,0,109,0,67,0,65,0,68,0,32,0,
+83,0,121,0,109,0,98,0,111,0,108,0,115,0,0,0,
+108,0,105,0,103,0,110,0,117,0,109,0,32,0,67,0,
+111,0,109,0,112,0,117,0,116,0,105,0,110,0,103,0,
+44,0,32,0,73,0,110,0,99,0,46,0,0,0,119,0,
+119,0,119,0,46,0,108,0,105,0,103,0,110,0,117,0,
+109,0,99,0,111,0,109,0,112,0,117,0,116,0,105,0,
+110,0,103,0,46,0,99,0,111,0,109,0,0,0,71,0,
+80,0,76,0,0,0,104,0,116,0,116,0,112,0,58,0,
+47,0,47,0,119,0,119,0,119,0,46,0,103,0,110,0,
+117,0,46,0,111,0,114,0,103,0,0,0,0,2,0,0,
+0,0,0,0,255,156,0,50,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,25,0,0,
+0,1,0,2,1,2,1,3,1,4,1,5,1,6,1,7,
+1,8,1,9,1,10,1,11,1,12,1,13,1,14,1,15,
+1,16,1,17,1,18,1,19,1,20,1,21,1,22,1,23,
+7,117,110,105,50,49,48,52,7,117,110,105,69,48,48,48,
+7,117,110,105,69,48,48,49,7,117,110,105,69,48,48,50,
+7,117,110,105,69,48,48,51,7,117,110,105,69,48,48,52,
+7,117,110,105,69,48,48,53,7,117,110,105,69,48,48,54,
+7,117,110,105,69,48,48,55,7,117,110,105,69,48,48,56,
+7,117,110,105,69,48,48,57,7,117,110,105,69,48,48,65,
+7,117,110,105,69,48,49,48,7,117,110,105,69,48,49,49,
+7,117,110,105,69,48,49,50,7,117,110,105,69,48,49,51,
+7,117,110,105,69,48,49,52,7,117,110,105,69,48,49,53,
+7,117,110,105,69,48,49,54,7,117,110,105,69,48,49,55,
+7,117,110,105,69,48,49,56,7,117,110,105,69,48,49,57,
+};
+const int lCSymbols_ttf_size = sizeof( lCSymbols_ttf );

engine/libraries/oglft/tests/demo.cpp

@@ -0,0 +1,378 @@
+/*
+ * demo.cpp: Demo of the OGLFT library
+ * Copyright (C) 2002 lignum Computing, Inc. <oglft@lignumcomputing.com>
+ * $Id$
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <unistd.h>
+#include <cstdlib>
+#include <iostream>
+#include <GL/glut.h>
+
+#include <OGLFT.h>
+
+static const char* USAGE = " fontfile";
+
+static const char* commands = "a/A: char rotate X, s/S: char rotate Y, d/D: char rotate Z, f/F: string rotate, r: reset all";
+static const char* text = "The quick brown fox jumps over a lazy dog.";
+static const float point_size = 16;
+
+static OGLFT::Monochrome* commands_face;
+static OGLFT::Monochrome* monochrome_face;
+static OGLFT::Grayscale* grayscale_face;
+static OGLFT::Translucent* translucent_face;
+static OGLFT::Outline* outline_face;
+static OGLFT::Filled* filled_face;
+#ifndef OGLFT_NO_SOLID
+static OGLFT::Solid* solid_face;
+#else
+static OGLFT::Monochrome* solid_face;
+#endif
+static OGLFT::MonochromeTexture* monochrome_texture_face;
+static OGLFT::GrayscaleTexture* grayscale_texture_face;
+static OGLFT::TranslucentTexture* translucent_texture_face;
+
+
+static float dy;
+static int viewport_width;
+static int viewport_height;
+
+static void init ( int /*argc*/, char* argv[] )
+{
+  std::cout << glGetString( GL_VENDOR ) << " " << glGetString( GL_RENDERER ) << " "
+	    << glGetString( GL_VERSION ) << std::endl;
+
+  commands_face = new OGLFT::Monochrome( argv[1], point_size / 2. );
+  commands_face->setHorizontalJustification( OGLFT::Face::CENTER );
+
+  monochrome_face = new OGLFT::Monochrome( argv[1], point_size );
+  monochrome_face->setHorizontalJustification( OGLFT::Face::CENTER );
+  monochrome_face->setForegroundColor( 1., 0., 0., 1. );
+
+  if ( !monochrome_face->isValid() ) {
+    std::cerr << "failed to open face. exiting." << std::endl;
+    exit( 1 );
+  }
+
+  grayscale_face = new OGLFT::Grayscale( argv[1], point_size );
+  grayscale_face->setHorizontalJustification( OGLFT::Face::CENTER );
+  grayscale_face->setForegroundColor( 0., 0., .5, 1. );
+  grayscale_face->setBackgroundColor( 0., 1., 1., 1. );
+
+  translucent_face = new OGLFT::Translucent( argv[1], point_size );
+  translucent_face->setHorizontalJustification( OGLFT::Face::CENTER );
+  translucent_face->setForegroundColor( 0., .5, 0., 1. );
+
+  outline_face = new OGLFT::Outline( argv[1], point_size );
+  outline_face->setHorizontalJustification( OGLFT::Face::CENTER );
+  outline_face->setForegroundColor( 1., 1., 0., 1. );
+
+  filled_face = new OGLFT::Filled( argv[1], point_size );
+  filled_face->setHorizontalJustification( OGLFT::Face::CENTER );
+  filled_face->setForegroundColor( .5, 0., 1., 1. );
+
+#ifndef OGLFT_NO_SOLID
+  solid_face = new OGLFT::Solid( argv[1], point_size );
+  solid_face->setDepth( 10. );
+  solid_face->setCharacterRotationX( 25. );
+  solid_face->setCharacterRotationY( 25. );
+  solid_face->setTessellationSteps( 3 );
+#else
+  solid_face = new OGLFT::Monochrome( argv[1], point_size );
+#endif
+  solid_face->setHorizontalJustification( OGLFT::Face::CENTER );
+  solid_face->setForegroundColor( 1., .5, 0., 1. );
+
+  monochrome_texture_face = new OGLFT::MonochromeTexture( argv[1], point_size );
+  monochrome_texture_face->setHorizontalJustification( OGLFT::Face::CENTER );
+  monochrome_texture_face->setForegroundColor( 0., .5, .75, 1. );
+
+  grayscale_texture_face = new OGLFT::GrayscaleTexture( argv[1], point_size );
+  grayscale_texture_face->setHorizontalJustification( OGLFT::Face::CENTER );
+  grayscale_texture_face->setForegroundColor( 0.9, .65, .9, 1. );
+  grayscale_texture_face->setBackgroundColor( 0.5, .5, .75, 0.3 );
+
+  translucent_texture_face = new OGLFT::TranslucentTexture( argv[1], point_size );
+  translucent_texture_face->setHorizontalJustification( OGLFT::Face::CENTER );
+  translucent_texture_face->setForegroundColor( 0.75, 1., .75, 1. );
+
+  // Set various general parameters which don't affect performance (yet).
+  glClearColor( .75, .75, .75, 1. );
+  glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
+#if defined(GL_RASTER_POSITION_UNCLIPPED_IBM)
+  glEnable( GL_RASTER_POSITION_UNCLIPPED_IBM );
+#endif
+  glEnable( GL_LIGHT0 );
+  glDisable( GL_DITHER );
+  glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
+  glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
+}
+
+static void reshape ( int width, int height )
+{
+  viewport_width = width;
+  viewport_height = height;
+
+  glViewport( 0, 0, viewport_width, viewport_height );
+  glMatrixMode( GL_PROJECTION );
+  glLoadIdentity();
+  glOrtho( 0, viewport_width, 0, viewport_height, -100, 100 );
+
+  glMatrixMode( GL_MODELVIEW );
+  glLoadIdentity();
+
+  dy = viewport_height / ( 9 + 1 );
+}
+
+static void reset ( void )
+{
+  monochrome_face->setCharacterRotationZ( 0 );
+  monochrome_face->setStringRotation( 0 );
+
+  grayscale_face->setCharacterRotationZ( 0 );
+  grayscale_face->setStringRotation( 0 );
+
+  translucent_face->setCharacterRotationZ( 0 );
+  translucent_face->setStringRotation( 0 );
+
+  outline_face->setCharacterRotationX( 0 );
+  outline_face->setCharacterRotationY( 0 );
+  outline_face->setCharacterRotationZ( 0 );
+  outline_face->setStringRotation( 0 );
+
+  filled_face->setCharacterRotationX( 0 );
+  filled_face->setCharacterRotationY( 0 );
+  filled_face->setCharacterRotationZ( 0 );
+  filled_face->setStringRotation( 0 );
+
+#ifndef OGLFT_NO_SOLID
+  solid_face->setCharacterRotationX( 25. );
+  solid_face->setCharacterRotationY( 25. );
+#endif
+  solid_face->setCharacterRotationZ( 0 );
+  solid_face->setStringRotation( 0 );
+
+  monochrome_texture_face->setCharacterRotationX( 0 );
+  monochrome_texture_face->setCharacterRotationY( 0 );
+  monochrome_texture_face->setCharacterRotationZ( 0 );
+  monochrome_texture_face->setStringRotation( 0 );
+
+  grayscale_texture_face->setCharacterRotationX( 0 );
+  grayscale_texture_face->setCharacterRotationY( 0 );
+  grayscale_texture_face->setCharacterRotationZ( 0 );
+  grayscale_texture_face->setStringRotation( 0 );
+
+  translucent_texture_face->setCharacterRotationX( 0 );
+  translucent_texture_face->setCharacterRotationY( 0 );
+  translucent_texture_face->setCharacterRotationZ( 0 );
+  translucent_texture_face->setStringRotation( 0 );
+
+  glViewport( 0, 0, viewport_width, viewport_height );
+  glMatrixMode( GL_PROJECTION );
+  glLoadIdentity();
+  glOrtho( 0, viewport_width, 0, viewport_height, -100, 100 );
+
+  glMatrixMode( GL_MODELVIEW );
+  glLoadIdentity();
+}
+
+static void char_rotate_x ( float dx )
+{
+  outline_face->setCharacterRotationX( outline_face->characterRotationX()+dx );
+  filled_face->setCharacterRotationX( filled_face->characterRotationX()+dx );
+#ifndef OGLFT_NO_SOLID
+  solid_face->setCharacterRotationX( solid_face->characterRotationX()+dx );
+#endif
+  monochrome_texture_face->setCharacterRotationX(
+				 monochrome_texture_face->characterRotationX()+dx );
+  grayscale_texture_face->setCharacterRotationX(
+				grayscale_texture_face->characterRotationX()+dx );
+  translucent_texture_face->setCharacterRotationX(
+			  translucent_texture_face->characterRotationX()+dx );
+}
+
+static void char_rotate_y ( float dy )
+{
+  outline_face->setCharacterRotationY( outline_face->characterRotationY()+dy );
+  filled_face->setCharacterRotationY( filled_face->characterRotationY()+dy );
+#ifndef OGLFT_NO_SOLID
+  solid_face->setCharacterRotationY( solid_face->characterRotationY()+dy );
+#endif
+  monochrome_texture_face->setCharacterRotationY(
+				 monochrome_texture_face->characterRotationY()+dy );
+  grayscale_texture_face->setCharacterRotationY(
+				grayscale_texture_face->characterRotationY()+dy );
+  translucent_texture_face->setCharacterRotationY(
+			  translucent_texture_face->characterRotationY()+dy );
+}
+
+static void char_rotate_z ( float dz )
+{
+  monochrome_face->setCharacterRotationZ( monochrome_face->characterRotationZ()+dz );
+  grayscale_face->setCharacterRotationZ( grayscale_face->characterRotationZ()+dz );
+  translucent_face->setCharacterRotationZ( translucent_face->characterRotationZ()+dz );
+
+  outline_face->setCharacterRotationZ( outline_face->characterRotationZ()+dz );
+  filled_face->setCharacterRotationZ( filled_face->characterRotationZ()+dz );
+  solid_face->setCharacterRotationZ( solid_face->characterRotationZ()+dz );
+
+  monochrome_texture_face->setCharacterRotationZ( monochrome_texture_face->characterRotationZ()+dz );
+  grayscale_texture_face->setCharacterRotationZ( grayscale_texture_face->characterRotationZ()+dz );
+  translucent_texture_face->setCharacterRotationZ( translucent_texture_face->characterRotationZ()+dz );
+}
+
+static void string_rotate ( float dz )
+{
+
+  monochrome_face->setStringRotation( monochrome_face->stringRotation()+dz );
+  grayscale_face->setStringRotation( grayscale_face->stringRotation()+dz );
+  translucent_face->setStringRotation( translucent_face->stringRotation()+dz );
+
+  outline_face->setStringRotation( outline_face->stringRotation()+dz );
+  filled_face->setStringRotation( filled_face->stringRotation()+dz );
+  solid_face->setStringRotation( solid_face->stringRotation()+dz );
+
+  monochrome_texture_face->setStringRotation( monochrome_texture_face->stringRotation()+dz );
+  grayscale_texture_face->setStringRotation( grayscale_texture_face->stringRotation()+dz );
+  translucent_texture_face->setStringRotation( translucent_texture_face->stringRotation()+dz );
+}
+
+static void display ( void )
+{
+  glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+  glPushMatrix();
+
+  // Draw everything centered
+  glTranslatef( viewport_width/2., 0., 0. );
+
+  commands_face->draw( 0., 0., commands );
+
+  glTranslatef( 0., dy, 0. );
+  monochrome_face->draw( 0., 0., text );
+
+  glTranslatef( 0., dy, 0. );
+  grayscale_face->draw( 0., 0., text );
+
+  glEnable( GL_BLEND );
+  glTranslatef( 0., dy, 0. );
+  translucent_face->draw( 0., 0., text );
+  glDisable( GL_BLEND );
+
+  glTranslatef( 0., dy, 0. );
+  outline_face->draw( 0., 0., text );
+
+  glTranslatef( 0., dy, 0. );
+  filled_face->draw( 0., 0., text );
+
+  glTranslatef( 0., dy, 0. );
+#ifndef OGLFT_NO_SOLID
+  glEnable( GL_LIGHTING );
+  glEnable( GL_DEPTH_TEST );
+  glEnable( GL_COLOR_MATERIAL );
+  solid_face->draw( 0., 0., text );
+  glDisable( GL_COLOR_MATERIAL );
+  glDisable( GL_DEPTH_TEST );
+  glDisable( GL_LIGHTING );
+#else
+  solid_face->draw( 0., 0., "<Note: Solid face not available in library>" );
+#endif
+
+  glEnable( GL_TEXTURE_2D );
+  glEnable( GL_BLEND );
+  glEnable( GL_DEPTH_TEST );
+  glTranslatef( 0., dy, 0. );
+  monochrome_texture_face->draw( 0., 0., text );
+
+  glTranslatef( 0., dy, 0. );
+  grayscale_texture_face->draw( 0., 0., text );
+
+  glTranslatef( 0., dy, 0. );
+  translucent_texture_face->draw( 0., 0., text );
+  glDisable( GL_DEPTH_TEST );
+  glDisable( GL_BLEND );
+  glDisable( GL_TEXTURE_2D );
+
+  glPopMatrix();
+  glutSwapBuffers();
+}
+
+static void key ( unsigned char key, int /*x*/, int /*y*/ )
+{
+  switch ( key ) {
+  case 'a':
+    char_rotate_x( -4 ); break;
+  case 'A':
+    char_rotate_x( 4 ); break;
+  case 's':
+    char_rotate_y( -4 ); break;
+  case 'S':
+    char_rotate_y( 4 ); break;
+  case 'd':
+    char_rotate_z( -4 ); break;
+  case 'D':
+    char_rotate_z( 4 ); break;
+  case 'f':
+    string_rotate( -4 ); break;
+  case 'F':
+    string_rotate( 4 ); break;
+  case 'r': case 'R':
+    reset(); break;
+  case 27:
+    exit( 0 );
+  default:
+    return;
+  }
+
+  glutPostRedisplay();
+}
+
+static void done ( void )
+{
+  delete monochrome_face;
+  delete grayscale_face;
+  delete translucent_face;
+  delete outline_face;
+  delete filled_face;
+  delete solid_face;
+  delete monochrome_texture_face;
+  delete grayscale_texture_face;
+  delete translucent_texture_face;
+}
+
+int main ( int argc, char* argv[] )
+{
+  if ( argc != 2 ) {
+    std::cerr << argv[0] << USAGE << std::endl;
+    return 1;
+  }
+
+  glutInit( &argc, argv );
+  glutInitWindowSize( 500, 500 );
+  glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
+  glutCreateWindow( argv[0] );
+
+  init( argc, argv );
+
+  atexit( done );
+
+  glutReshapeFunc( reshape );
+  glutDisplayFunc( display );
+  glutKeyboardFunc( key );
+
+  glutMainLoop();
+
+  return 0;
+}

engine/libraries/oglft/tests/demo2.cpp

@@ -0,0 +1,183 @@
+/*
+ * demo2.cpp: Second Demo of the OGLFT library
+ * Copyright (C) 2002 lignum Computing, Inc. <oglft@lignumcomputing.com>
+ * $Id$
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <iostream>
+
+#include <GL/glut.h>
+
+#include <OGLFT.h>
+
+#include FT_MULTIPLE_MASTERS_H
+
+static const char* USAGE = " fontfile";
+
+static FT_Library library;
+static FT_Face ft_face;
+static FT_Multi_Master master_info;
+static FT_Long axis_averages[T1_MAX_MM_AXIS];
+#if 0
+static OGLFT::Filled* oglft_face;
+#else
+static OGLFT::Monochrome* oglft_face;
+#endif
+static int viewport_width;
+static int viewport_height;
+
+static void init ( int /*argc*/, char* argv[] )
+{
+  std::cout << glGetString( GL_VENDOR ) << " " << glGetString( GL_RENDERER ) << " "
+	    << glGetString( GL_VERSION ) << std::endl;
+
+  library = OGLFT::Library::instance();
+
+  FT_Error error;
+
+  error = FT_New_Face( library, argv[1], 0, &ft_face );
+
+  if ( error != 0 ) {
+    std::cerr << "Could not create a font from file \"" << argv[1] << "\""
+	      << std::endl;
+    exit( 1 );
+  }
+
+  error = FT_Get_Multi_Master( ft_face, &master_info );
+
+  if ( error != 0 ) {
+    std::cerr << "Font file \"" << argv[1]
+	      << "\" does not contain a multi master font" << std::endl;
+    exit( 1 );
+  }
+
+  for ( unsigned int i = 0; i < master_info.num_axis; i++ )
+    axis_averages[i] = ( master_info.axis[i].minimum +
+			 master_info.axis[i].maximum ) / 2;
+
+  FT_Set_MM_Design_Coordinates( ft_face, master_info.num_axis, axis_averages );
+
+#if 0
+  oglft_face = new OGLFT::Filled( ft_face, 14 );
+#else
+  glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
+  glEnable( GL_RASTER_POSITION_UNCLIPPED_IBM );
+
+  oglft_face = new OGLFT::Monochrome( ft_face, 14 );
+#endif
+  oglft_face->setHorizontalJustification( OGLFT::Face::LEFT );
+  oglft_face->setForegroundColor( 1., 0., 0. );
+  oglft_face->setCompileMode( OGLFT::Face::IMMEDIATE );
+}
+
+static void reshape ( int width, int height )
+{
+  viewport_width = width;
+  viewport_height = height;
+
+  glViewport( 0, 0, viewport_width, viewport_height );
+  glMatrixMode( GL_PROJECTION );
+  glLoadIdentity();
+  glOrtho( 0, viewport_width, 0, viewport_height, -100, 100 );
+
+  glMatrixMode( GL_MODELVIEW );
+  glLoadIdentity();
+}
+
+static void display ( void )
+{
+  const int BUFSIZE = 128;
+  char buffer[BUFSIZE];
+
+  glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+  glPushMatrix();
+
+  snprintf( buffer, sizeof(buffer), "There are %d axes", master_info.num_axis );
+
+  GLfloat y = 480.;
+
+  oglft_face->draw( 0., y, buffer );
+
+  for ( unsigned int i = 0; i < master_info.num_axis; i++ ) {
+    FT_Set_MM_Design_Coordinates( ft_face, master_info.num_axis, axis_averages );
+    snprintf( buffer, sizeof(buffer), "%s: min: %ld max: %ld",
+	      master_info.axis[i].name,
+	      master_info.axis[i].minimum, master_info.axis[i].maximum );
+
+    y -= 20.;
+    oglft_face->draw( 0., y, buffer );
+
+    FT_Long axis_average = axis_averages[i];
+    FT_Long d_axis = (master_info.axis[i].maximum - master_info.axis[i].minimum)/4;
+    axis_averages[i] = master_info.axis[i].minimum;
+
+    for ( int j = 0; j <= 4; j++ ) {
+      FT_Set_MM_Design_Coordinates( ft_face, master_info.num_axis, axis_averages );
+      snprintf( buffer, sizeof(buffer), "   Style at axis = %ld\n", axis_averages[i] );
+      y -= 20.;
+      oglft_face->draw( 0., y, buffer );
+
+      axis_averages[i] += d_axis;
+    }
+
+    axis_averages[i] = axis_average;
+  }
+
+  glPopMatrix();
+  glutSwapBuffers();
+}
+
+static void key ( unsigned char key, int /*x*/, int /*y*/ )
+{
+  switch ( key ) {
+  case 'q':
+  case 27:
+    exit( 0 );
+  default:
+    return;
+  }
+
+  glutPostRedisplay();
+}
+
+static void done ( void )
+{
+}
+
+int main ( int argc, char* argv[] )
+{
+  if ( argc != 2 ) {
+    std::cerr << argv[0] << USAGE << std::endl;
+    return 1;
+  }
+
+  glutInit( &argc, argv );
+  glutInitWindowSize( 500, 500 );
+  glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
+  glutCreateWindow( argv[0] );
+
+  init( argc, argv );
+
+  atexit( done );
+
+  glutReshapeFunc( reshape );
+  glutDisplayFunc( display );
+  glutKeyboardFunc( key );
+
+  glutMainLoop();
+
+  return 0;
+}

engine/libraries/oglft/tests/speedtest.h

@@ -0,0 +1,89 @@
+/* -*- c++ -*-
+ * speedtest.h: Header for Performance test for the OGLFT library
+ * Copyright (C) 2002 lignum Computing, Inc. <oglft@lignumcomputing.com>
+ * $Id$
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef SPEEDTEST_H
+#define SPEEDTEST_H
+
+#include <stdlib.h>
+
+#include <qgl.h>
+#include <qqueue.h>
+#include <qtimer.h>
+
+// Little animation vignettes. The function calls essentially follow
+// those of the Qt OpenGL widget and are called at the corresponding times.
+
+struct Vignette {
+  virtual ~Vignette ( void ) {}
+  virtual unsigned int frame_count ( void ) = 0;
+  virtual void init ( void ) = 0;
+  virtual void view ( GLdouble /*left*/, GLdouble /*right*/,
+		      GLdouble /*bottom*/, GLdouble /*top*/ )
+  {}
+  virtual void reset ( void )
+  {}
+  virtual bool input ( QKeyEvent* e )
+  {
+    if ( e->key() == Qt::Key_Escape ) exit( 0 );
+    return false;
+  }
+  virtual void draw ( int frame_number ) = 0;
+  virtual void finish ( void ) = 0;
+};
+
+// Yet another OpenGL view widget.
+
+class CharacterView : public QGLWidget {
+Q_OBJECT
+  GLsizei window_width_, window_height_;
+  GLdouble view_width_, view_height_;
+  GLdouble view_left_, view_right_, view_bottom_, view_top_;
+  GLdouble rot_x_, rot_y_, rot_z_;
+
+  QTimer redraw_timer_;
+  QTimer performance_timer_;
+
+  unsigned int frame_counter_;
+  unsigned int counter_snapshot_;
+  unsigned int animation_frame_count_;
+  unsigned int iteration_counter_;
+  unsigned int maximum_iterations_;
+
+  static const unsigned int PERFORMANCE_SAMPLE_RATE_HZ = 1;
+  static const unsigned int MAXIMUM_ITERATIONS = 4;
+
+  QQueue<Vignette> vignettes;
+
+protected slots:
+  void redraw ( void );
+  void measure_performance ( void );
+
+public:
+  CharacterView ( const char* text, const char* fontfile,
+		  QWidget* parent = 0, const char* name = 0 );
+protected:
+
+  void initializeGL ( void );
+  void resizeGL ( int w, int h );
+  void paintGL ( void );
+  void keyPressEvent ( QKeyEvent* e );
+  void resetView ( void );
+};
+
+#endif /* SPEEDTEST_H */

engine/libraries/oglft/tests/tosrc.pl

@@ -0,0 +1,30 @@
+#!/usr/bin/perl
+
+use strict;
+
+# Convert the file given on the commandline into something which
+# can be compiled with C and linked into an executable.
+# Use the generated object module with the following declarations:
+# extern unsigned char ${ARGV[0]}[]; /* Array of data */
+# extern int ${ARGV[0]}_size;        /* Size of array */
+# Note, .'s in the argument filename are converted to _'s
+
+open FILE, $ARGV[0] or die "usage: $0 file";
+
+# "Slurp the whole file"
+undef $/;
+my $contents = <FILE>;
+
+# Replace .'s in the filename with _'s (since . is an operator in C)
+my $label = $ARGV[0];
+$label =~ s/\./_/;
+
+print "FT_Byte $label\[\] = {\n";
+
+for ( my $i = 0; $i < length $contents; $i += 16 ) {
+    print join( ",", unpack( "C*", substr( $contents, $i, 16 ) ) ), ",\n";
+}
+
+print "};\n";
+
+print "const int ${label}_size = sizeof( $label );\n";

engine/libraries/oglft/tests/tutorial1.cpp

@@ -0,0 +1,98 @@
+/*
+ * tutorial1.cpp: Tutorial for the OGLFT library
+ * Copyright (C) 2002 lignum Computing, Inc. <oglft@lignumcomputing.com>
+ * $Id$
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <iostream>
+
+#include <GL/glut.h>
+
+#include <OGLFT.h> // Note: this will depend on where you've installed OGLFT
+
+// Declare a Face variable of the desired style
+OGLFT::Monochrome* monochrome;
+
+void init ( const char* filename )
+{
+  // Create a new face given the font filename and a size
+
+  monochrome = new OGLFT::Monochrome( filename, 36 );
+
+  // Always check to make sure the face was properly constructed
+
+  if ( monochrome == 0 || !monochrome->isValid() ) {
+    std::cerr << "Could not construct face from " << filename << std::endl;
+    return;
+  }
+
+  // Set the face color to red
+
+  monochrome->setForegroundColor( 1., 0., 0. );
+
+  // For the raster styles, it is essential that the pixel store
+  // unpacking alignment be set to 1
+
+  glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
+
+  // Set the window's background color
+
+  glClearColor( .75, .75, .75, 1. );
+}
+
+static void display ( void )
+{
+  // First clear the window ...
+  glClear( GL_COLOR_BUFFER_BIT );
+  // ... then draw the string
+  monochrome->draw( 0., 250., "Hello, World!" );
+}
+
+static void reshape ( int width, int height )
+{
+  glViewport( 0, 0, width, height );
+  glMatrixMode( GL_PROJECTION );
+  glLoadIdentity();
+  glOrtho( 0, width, 0, height, -1, 1 );
+
+  glMatrixMode( GL_MODELVIEW );
+  glLoadIdentity();
+}
+
+int main ( int argc, char* argv[] )
+{
+  // Check to be sure the user specified something as a font file name
+
+  if ( argc != 2 ) {
+    std::cerr << "usage: " << argv[0] << " fontfile" << std::endl;
+    return 1;
+  }
+
+  // Standard GLUT setup commands
+
+  glutInit( &argc, argv );
+  glutInitWindowSize( 500, 500 );
+  glutInitDisplayMode( GLUT_RGB ); // Note: OGLFT really only works in RGB mode
+  glutCreateWindow( argv[0] );
+
+  init( argv[1] );
+
+  glutReshapeFunc( reshape );
+  glutDisplayFunc( display );
+  glutMainLoop();
+
+  return 0;
+}