fixed compiling in 2015

CMake/FindGLEW.cmake

@@ -0,0 +1,31 @@
+# Tries to find GLEW
+#
+# Sets variables
+#   GLEW_FOUND
+#   GLEW_INCLUDE_DIR
+#   GLEW_LIBRARIES
+#
+SET (GLEW_FOUND FALSE)
+
+FIND_PATH (GLEW_INCLUDE_DIR glew.h /usr/include/ /usr/local/include/ /usr/include/GL /usr/local/include/GL $ENV{GLEW_PATH}/include $ENV{GLEW_INCLUDE_PATH})
+
+FIND_LIBRARY (GLEW_LIBRARIES NAMES GLEW PATHS /usr/lib /usr/local/lib $ENV{GLEW_PATH} $ENV{GLEW_PATH}/lib ENV{GLEW_LIBRARY_PATH})
+
+IF (GLEW_INCLUDE_DIR AND GLEW_LIBRARIES)
+	SET (GLEW_FOUND TRUE)
+ENDIF (GLEW_INCLUDE_DIR AND GLEW_LIBRARIES)
+
+IF (GLEW_FOUND)
+   IF (NOT GLEW_FIND_QUIETLY)
+      MESSAGE(STATUS "Found GLEW: ${GLEW_LIBRARIES}")
+   ENDIF (NOT GLEW_FIND_QUIETLY)
+ELSE (GLEW_FOUND)
+   IF (GLEW_FIND_REQUIRED)
+      MESSAGE(FATAL_ERROR "Could not find GLEW")
+   ENDIF (GLEW_FIND_REQUIRED)
+ENDIF (GLEW_FOUND)
+
+MARK_AS_ADVANCED (
+	GLEW_INCLUDE_DIR
+	GLEW_LIBRARIES
+	)

CMakeLists.txt

@@ -12,6 +12,7 @@ SET (CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
 
 FIND_PACKAGE (SDL REQUIRED)
 FIND_PACKAGE (SDL_net REQUIRED)
+FIND_PACKAGE (GLEW REQUIRED)
 
 INCLUDE_DIRECTORIES ( 
 	engine/
@@ -21,6 +22,7 @@ INCLUDE_DIRECTORIES (
 	engine/libraries/coll2d/include
 	engine/libraries/oglft/liboglft
 	${FREETYPE2_INCLUDE_DIR}
+	${GLEW_INCLUDE_DIR}
 	)
 
 ADD_SUBDIRECTORY ( engine )

asteroids/Model.cc

@@ -392,7 +392,7 @@ bool Model::PullGlobalHighscore(std::stringstream &highscore_stream) {
 	int bytes_sent;
 	bytes_sent = SDLNet_TCP_Send (server_socket, http_query_string.c_str(), http_query_string.size());
 
-	if (bytes_sent != http_query_string.size()) {
+	if (static_cast<unsigned int>(bytes_sent) != http_query_string.size()) {
 		Engine::LogError ("SDL_net tcp send: %s", SDLNet_GetError());
 		return false;
 	}
@@ -501,7 +501,7 @@ bool Model::SubmitGlobalHigscoreEntry (std::string name, const unsigned int poin
 	int bytes_sent;
 	bytes_sent = SDLNet_TCP_Send (server_socket, http_query_string.c_str(), http_query_string.size());
 
-	if (bytes_sent != http_query_string.size()) {
+	if (static_cast<unsigned int>(bytes_sent) != http_query_string.size()) {
 		Engine::LogError ("SDL_net tcp send: %s", SDLNet_GetError());
 		return false;
 	}
@@ -800,7 +800,6 @@ void Model::OnLevelComplete() {
 	// calculate the bonus points
 	float level_time = roundf(mLevelTimeSeconds);
 	float level_par_time = roundf(mLevelParTimeSeconds);
-	int bonus_points = 0;
 
 	if (level_time <= level_par_time) {
 		// secret time bonus formula

asteroids/Model.h

@@ -89,6 +89,7 @@ class Model : public Engine::ModelBase {
 		}
 
 		bool GetGameModified() { return mGameModified; }
+
 	protected:
 		/** \brief Initializes the system */
 		virtual int OnInit (int argc, char* argv[]);

asteroids/View.cc

@@ -17,6 +17,8 @@
 #include "AsteroidsEvents.h"
 #include "RocketEntity.h"
 
+#include "OBJModel.h"
+
 #include <GL/gl.h>
 #include <GL/glu.h>
 
@@ -77,6 +79,8 @@ int View::OnInit (int argc, char* argv[]) {
 	mShipPartsSprite.LoadFromPNG (Engine::GetResourceFullPath("/data/textures/ship_parts.png"));
 	mShipPartsSprite.SetSubSpriteCount (10);
 
+	mAsteroidModel = LoadOBJModel (Engine::GetResourceFullPath("/data/models/asteroid/asteroid_model.obj"));
+
 	Engine::RegisterListener (this, EventAccelerateStart);
 	Engine::RegisterListener (this, EventAccelerateStop);
 	Engine::RegisterListener (this, EventShipExplode);
@@ -179,6 +183,47 @@ bool View::OnReceiveEvent (const Engine::EventBasePtr &event) {
 /*
  * Module specific functions
  */
+void View::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();
+
+	float world_width, world_height;
+	world_width =  GetModel()->GetWorldWidth ();
+	world_height = GetModel()->GetWorldHeight ();
+
+	Engine::LogMessage ("width %f height %f", world_width, world_height);
+
+	glOrtho (- world_width * 0.5, world_width * 0.5, -world_height * 0.5, world_height * 0.5, 0., 100.);
+//	gluPerspective(mCamera->GetFOVY (), float (width) / float (height), 0., 100);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity ();
+
+	Engine::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
+	 */
+	Uint32 video_flags = SDL_OPENGL;
+
+	if (mDrawFullscreen)
+		video_flags = video_flags | SDL_FULLSCREEN;
+
+	if( SDL_SetVideoMode( mWindowWidth, mWindowHeight, 16, video_flags) == 0 ) {
+		Engine::LogError ("Video mode set failed: %s", SDL_GetError ());
+		exit (-1);
+	}
+}
+
 void View::UpdateCamera () {
 	mCamera->SetEye (
 			0.,
@@ -212,6 +257,7 @@ void View::DrawStars() {
 	glColor3f (1., 1., 1.);
 	glPointSize(2.);
 	glBegin(GL_POINTS);
+
 	float z_value;
 	for (i = 0; i < mBackgroundStars.size(); i++) {
 //		glPointSize (2. + 300. *mBackgroundStars.at(i).position[1]);
@@ -219,7 +265,7 @@ void View::DrawStars() {
 
 		glColor3f (z_value, z_value, z_value);
 		glVertex3f (mBackgroundStars.at(i).position[0] * world_width,
-				-1.,
+				-10.,
 				mBackgroundStars.at(i).position[2] * world_height);
 
 		mBackgroundStars.at(i).position -= vector3d(Engine::GetFrameDuration() * 0.7 * mBackgroundStars.at(i).position[1] / world_width, 0., 0.);
@@ -257,7 +303,9 @@ void View::Draw() {
 	unsigned int game_state = game_model->GetGameState();
 	unsigned int view_state = GetViewState();
 
+	glEnable (GL_DEPTH_TEST);
 	DrawStars ();
+	glDisable (GL_DEPTH_TEST);
 
 	if ( game_state == GameStateRunning 
 			|| view_state == ViewStateLevelIntro
@@ -410,6 +458,7 @@ void View::DrawUi () {
 	glMatrixMode (GL_MODELVIEW);
 	glPushMatrix ();
 	glLoadIdentity ();
+	glTranslatef (0., 1., 0.);
 
 	unsigned int game_state = GetModel()->GetGameState();
 
@@ -418,10 +467,10 @@ void View::DrawUi () {
 
 	ViewState current_view_state = GetViewState(); 
 
-	/*
+	stringstream fps_stream;
+	fps_stream << "fps: " << GetFrameRate();
 	SelectFont ("console.ttf size=12");
-	Engine::GUI::Label (99999, GetStringViewState(current_view_state), 8, 16);
+	Engine::GUI::Label (99999, fps_stream.str().c_str(), 8, 48);
-	*/
 
 	switch (current_view_state) {
 		case ViewStateMainMenu:
@@ -589,8 +638,6 @@ void View::DrawUiGameOver() {
 				text_xpos,
 				text_ypos);
 
-		const static int value_width = 10;
-
 		text_ypos += 48; 
 
 		// ----- New Score -----
@@ -661,6 +708,9 @@ void View::DrawUiLevelIntro() {
 		GetModel()->SetPlayerLives(100);
 	}
 
+	glDisable(GL_DEPTH_TEST);
+	glEnable(GL_BLEND);
+
 	stringstream level_info_stream;
 	level_info_stream << "Level " << GetModel()->GetCurrentLevelIndex() + 1;
 
@@ -744,6 +794,8 @@ void View::DrawUiLevelIntro() {
 			level_author_dest_y - Engine::GetTimer("LevelIntroLevelAuthor") * level_author_delta_y
 			);
 
+	glDisable(GL_BLEND);
+
 	if (Engine::CheckTimer("LevelIntroLevelStart")) {
 		if(Engine::GUI::Button (1, "Start", (screen_right - button_width) * 0.5, screen_bottom * 0.5 + 180, button_width, button_height)) {
 			PopViewState();
@@ -781,7 +833,6 @@ void View::DrawUiLevelComplete() {
 
 	if (GetModel()->GetGameModified()) {
 		SelectFont("console.ttf size=23 color=#cc0000");
-		float width, height;
 		std::string message ("* UNOFFICIAL GAME * UNOFFICIAL GAME * UNOFFICIAL GAME *");
 
 		float xpos = (screen_left) + 5;
@@ -951,7 +1002,7 @@ void View::DrawUiPlayerDied() {
  */
 void View::DrawHighscoreEntry (float x, float y, float entry_width, const std::string &name, unsigned int points) {
 	const float width_buffer = 30.;
-	float width, height;
+	float height;
 	float name_width, points_value_width;
 
 	// Measure and draw the name
@@ -1646,8 +1697,25 @@ void View::DrawShip (ShipEntity *ship) {
 }
 
 void View::DrawAsteroid (AsteroidEntity *asteroid) {
-	mAsteroidSprite.SetScale (2. * asteroid->mPhysicState->mRadius / mAsteroidSprite.GetWidth());
+//	mAsteroidSprite.SetScale (2. * asteroid->mPhysicState->mRadius / mAsteroidSprite.GetWidth());
-	mAsteroidSprite.DrawAt(0., 0., 0.);
+//	mAsteroidSprite.DrawAt(0., 0., 0.);
+
+	glPushMatrix();
+	
+	glEnable (GL_LIGHTING);
+	glEnable (GL_LIGHT0);
+
+	glTranslatef (0., -1., 0.);
+//	glRotatef (90, 1., 0., 0.);
+	float scale = 1.8 * asteroid->mPhysicState->mRadius;
+	glScalef (scale, scale, scale);
+	DrawOBJModel (mAsteroidModel);
+
+	glDisable (GL_LIGHT0);
+	glDisable (GL_LIGHTING);
+
+	glPopMatrix();
+
 
 #ifdef DRAW_BOUNDARIES
 	glColor3f (1., 1., 1.);

asteroids/View.h

@@ -81,6 +81,7 @@ class View : public Engine::ViewBase {
 
 		/** \brief Updates the camera for further drawing */
 		virtual void UpdateCamera ();
+		virtual void Resize (int width, int height);
 
 	private:
 		void DrawUi();
@@ -140,6 +141,8 @@ class View : public Engine::ViewBase {
 		Engine::Sprite mShipThrustSprite;
 		Engine::Sprite mShipPartsSprite;
 	
+		Engine::OBJModelPtr mAsteroidModel;
+
 		float screen_left;
 		float screen_right;
 		float screen_top;

asteroids/editormain.cc

@@ -88,8 +88,8 @@ std::string find_game_data_dir () {
 	paths.push_back("/usr/local/share/fysxasteroids");
 	paths.push_back("/usr/share/fysxasteroids");
 
-	std::vector<std::string>::iterator iter = paths.begin();
+	std::vector<std::string>::iterator iter;
-	for (iter; iter != paths.end(); iter++) {
+	for (iter = paths.begin(); iter != paths.end(); iter++) {
 		std::string test_path = *iter;
 		
 		if (!boost::filesystem::is_directory(test_path + "/data/fonts"))
@@ -157,7 +157,6 @@ int main (int argc, char* argv[]) {
 	Engine::SetMusicVolume (0.);
 
 	// Load the icon
-	Uint32          colorkey;
 	SDL_Surface     *image = NULL;
 	image = SDL_LoadBMP("./data/textures/icon.bmp");
 	if (!image)

asteroids/main.cc

@@ -163,14 +163,15 @@ int main (int argc, char* argv[]) {
 	version_string += FYSXASTEROIDS_VERSION;
 	SDL_WM_SetCaption(version_string.c_str(), version_string.c_str());
 
-	engine.GetView()->SetGridSize (8,8);
-
 	/// \todo get rid of the world settings in asteroids
 	dynamic_cast<asteroids::Physics*>(engine.GetPhysics())->SetWorldSize (26, 20);
 	engine.GetPhysics()->SetWorldBounds (vector3d (-13, 0, -10), vector3d (13, 0, 10));
 	engine.GetPhysics()->EnableWorldWarp(Engine::PhysicsBase::WorldWarpModeX);
 	engine.GetPhysics()->EnableWorldWarp(Engine::PhysicsBase::WorldWarpModeZ);
 
+	engine.GetView()->SetGridSize (8,8);
+	engine.GetView()->Resize (800, 600);
+
 	// run the default commands and load the configuration
 	Engine::RunCommand ("exec asteroids.rc");
 	Engine::RunCommand ("exec config.rc");

data/models/asteroid/asteroid_model.mtl

@@ -0,0 +1,12 @@
+# Material Count: 1
+newmtl asteroid_asteroid_texture_full
+Ns 37.254902
+Ka 0.069978 0.069978 0.069978
+Kd 0.640000 0.640000 0.640000
+Ks 0.600000 0.600000 0.600000
+Ni 1.000000
+d 1.000000
+illum 2
+#map_Kd asteroid_texture_full.png
+map_Kd asteroid_texture_solid.png
+map_bump asteroid_normals_uv.png

data/models/asteroid/asteroid_model.obj

@@ -0,0 +1,377 @@
+# Blender v2.55 (sub 0) OBJ File: 'asteroidfull.blend'
+# www.blender.org
+mtllib asteroid_model.mtl
+o Asteroid_Icosphere
+v -1.783176 3.157423 -2.187264
+v -0.623617 3.419646 -2.279537
+v -4.136988 -1.528819 1.175240
+v 1.622063 -3.012534 -1.107284
+v -2.764359 2.370088 -1.340167
+v 0.011242 3.019686 2.574161
+v -3.271742 2.084863 -0.140242
+v -1.924542 3.110817 -0.535404
+v -3.428460 0.084386 1.434556
+v -1.127657 -3.141940 1.362692
+v -3.526288 1.205355 -1.042213
+v -3.326865 -1.851120 -2.151031
+v 3.315345 2.078610 0.192092
+v 1.677497 2.826964 1.998395
+v -3.488970 -0.830072 -2.166265
+v 2.454325 -1.478905 -2.751490
+v 0.892076 -2.198434 3.836253
+v -0.529430 -1.099092 -4.090514
+v -1.530568 2.367935 2.067323
+v -0.082300 -2.695156 3.227212
+v -4.186931 -0.713751 0.795901
+v -3.847708 0.187925 -0.543515
+v 2.213019 2.683415 -2.315270
+v -3.271944 1.840718 0.932036
+v 0.112475 -1.622629 4.020147
+v -1.052165 1.693250 -4.113129
+v -1.423264 -0.272173 -4.052314
+v -2.335668 2.112422 -2.554989
+v 1.706754 -3.029854 0.171139
+v -2.704852 0.116766 -2.710793
+v 3.689623 1.837504 -1.209753
+v -1.948996 -3.023728 0.875353
+v 3.308379 -0.730487 -2.346540
+v -0.899223 -1.466655 3.453547
+v 3.176398 -0.164593 2.544505
+v 1.450483 3.221935 0.923732
+v -2.242297 -2.166627 2.063739
+v -1.472705 -1.333648 -3.420503
+v 3.871596 0.740806 1.546153
+v 2.533928 1.975883 1.930760
+v 0.492799 2.513122 -3.092595
+v -0.349212 3.148993 -0.029523
+v 3.267344 1.184023 2.241151
+v -4.353748 -1.612557 -0.495422
+v -1.930530 1.654793 2.510300
+v 0.573979 -0.844695 -4.044802
+v 0.528275 -3.143214 -1.789249
+v 3.692719 -1.577900 -1.071348
+v 1.168138 1.079678 3.139852
+v 3.753358 -0.623585 -0.108652
+v 3.379341 -1.003592 1.838246
+v -1.351585 2.874982 -3.067893
+v 1.766429 -1.157478 3.728364
+v 3.667178 1.594924 1.024512
+v -0.884260 1.836161 2.998022
+v -1.073378 -3.132030 -1.461949
+v -0.467529 3.159610 1.532913
+v 3.709228 0.144063 -1.087636
+v 3.605958 -1.445132 -1.878629
+v 2.660886 3.124851 -0.854361
+v -0.436671 0.126434 -4.552140
+v -2.266935 -2.809002 -1.819118
+v -2.916038 -0.990559 1.868705
+v 0.627561 3.215132 -1.810096
+v 2.894693 -2.446815 -1.574007
+v 0.482250 2.215932 3.057291
+v 2.681753 1.396219 -2.708434
+v 0.310227 -2.120141 -3.148356
+v 3.060341 -1.967882 0.490186
+v 1.224500 -2.950663 1.059580
+v 3.238048 2.395264 -1.831406
+v 2.981815 0.133216 -2.548208
+v 3.870637 0.807691 -0.134255
+v 0.576682 -3.072934 2.294799
+v -0.354720 0.674670 3.589938
+v 1.886084 -2.119545 3.151299
+v -3.599368 -2.470988 0.392379
+v 0.714642 0.489363 -4.151877
+vt 0.962265 0.728057
+vt 0.899626 0.745931
+vt 0.929662 0.684568
+vt 0.750291 0.839492
+vt 0.789824 0.780340
+vt 0.836636 0.898960
+vt 0.197601 0.657079
+vt 0.236349 0.516526
+vt 0.295964 0.556306
+vt 0.406744 0.084655
+vt 0.437681 0.165538
+vt 0.371831 0.150081
+vt 0.937341 0.802735
+vt 0.739755 0.637792
+vt 0.713864 0.558013
+vt 0.790163 0.605118
+vt 0.466004 0.054740
+vt 0.531386 0.156801
+vt 0.407272 0.036392
+vt 0.227384 0.053071
+vt 0.204144 0.126771
+vt 0.146542 0.125405
+vt 0.861072 0.549518
+vt 0.871220 0.610164
+vt 0.540887 0.052625
+vt 0.483144 0.379133
+vt 0.531410 0.373100
+vt 0.566293 0.430810
+vt 0.066866 0.123562
+vt 0.065190 0.224005
+vt 0.002406 0.127618
+vt 0.881327 0.854767
+vt 0.500670 0.000000
+vt 0.321590 0.676758
+vt 0.371831 0.718807
+vt 0.319555 0.758685
+vt 0.885719 0.501947
+vt 0.883607 0.391689
+vt 0.934425 0.485845
+vt 0.000000 0.251617
+vt 0.741391 0.942675
+vt 0.814392 0.974820
+vt 0.777879 1.000000
+vt 0.635861 0.539129
+vt 0.561478 0.627398
+vt 0.446596 0.581324
+vt 0.695576 0.850029
+vt 0.128100 0.635461
+vt 0.141764 0.513552
+vt 0.359817 0.484969
+vt 0.371774 0.529646
+vt 0.372111 0.218880
+vt 0.062065 0.038661
+vt 0.000031 0.066144
+vt 0.752155 0.392965
+vt 0.762496 0.520997
+vt 0.699231 0.418395
+vt 0.845722 0.651852
+vt 0.741723 0.694331
+vt 0.371831 0.596760
+vt 0.426111 0.638510
+vt 0.365584 0.589421
+vt 0.395927 0.271007
+vt 0.515240 0.285039
+vt 0.501419 0.319046
+vt 0.561706 0.232608
+vt 0.118925 0.447635
+vt 0.173827 0.444650
+vt 0.066425 0.272682
+vt 0.752460 0.638720
+vt 0.864116 0.319046
+vt 0.634457 0.598443
+vt 0.643782 0.659783
+vt 0.207013 0.293435
+vt 0.808222 0.487833
+vt 0.608847 0.000134
+vt 0.695638 0.677489
+vt 0.696948 0.736016
+vt 0.157426 0.707879
+vt 0.668226 0.056560
+vt 0.671934 0.003912
+vt 0.198776 0.481993
+vt 0.273634 0.449727
+vt 0.804622 0.216599
+vt 0.791229 0.301115
+vt 0.747758 0.249256
+vt 0.721640 0.137550
+vt 0.191523 0.354536
+vt 0.820792 0.282262
+vt 0.950867 0.369066
+vt 0.324779 0.115257
+vt 0.323095 0.062677
+vt 0.695576 0.356821
+vt 0.647322 0.164260
+vt 0.005872 0.513634
+vt 0.041462 0.548754
+vt 0.006022 0.612097
+vt 0.429869 0.368933
+vt 0.426298 0.477853
+vt 0.044569 0.356401
+vt 0.330651 0.269674
+vt 0.101029 0.677297
+vt 0.075503 0.599948
+vt 0.682265 0.212902
+vt 0.721592 0.099681
+vt 0.985494 0.451521
+vt 0.944144 0.577592
+vt 0.268275 0.230026
+vt 0.265275 0.163033
+vt 0.610146 0.272739
+vt 1.000000 0.368928
+vt 0.371831 0.160502
+vt 0.294827 0.352889
+vt 0.179156 0.406072
+vt 0.695576 0.633236
+vt 0.912297 0.560646
+vt 0.068301 0.408852
+vt 0.837648 0.638720
+vt 0.183490 0.418129
+vt 0.674900 0.548703
+vt 0.360881 0.086504
+vt 0.170343 0.000000
+vt 0.499177 0.455094
+vt 0.730293 0.321189
+vt 0.945692 0.869305
+vt 0.006033 0.668066
+vt 0.005872 0.612097
+vt 0.055275 0.612495
+vt 0.953257 0.914727
+vt 0.586418 0.354851
+vt 0.666332 0.438154
+vt 0.252839 0.408852
+vt 0.328739 0.431163
+vt 0.388098 0.659674
+vt 0.000000 0.475701
+vt 0.041462 0.408852
+vt 0.041403 0.513634
+vt 0.489351 0.319046
+vt 0.721592 0.319046
+vt 0.354845 0.326581
+vt 0.240882 0.751040
+usemtl asteroid_asteroid_normals_uv.p
+s 1
+f 1/1 28/2 52/3
+f 15/4 30/5 22/6
+f 78/7 72/8 67/9
+f 1/10 8/11 5/12
+f 1/1 5/13 28/2
+f 48/14 69/15 50/16
+f 2/17 42/18 8/11
+f 8/11 1/10 2/17
+f 2/17 1/10 52/19
+f 69/20 29/21 70/22
+f 50/16 39/23 73/24
+f 2/17 64/25 42/18
+f 3/26 21/27 9/28
+f 74/29 10/30 20/31
+f 30/5 28/2 11/32
+f 41/33 64/25 2/17
+f 41/34 2/35 52/36
+f 43/37 49/38 40/39
+f 37/40 20/31 10/30
+f 44/41 21/42 3/43
+f 45/44 75/45 34/46
+f 12/47 30/5 15/4
+f 46/48 16/49 72/8
+f 72/8 31/50 71/51
+f 5/12 8/11 7/52
+f 45/44 34/46 9/28
+f 30/5 11/32 22/6
+f 76/53 74/29 17/54
+f 53/55 51/56 76/57
+f 26/58 28/2 30/5
+f 51/56 50/16 69/15
+f 46/48 72/8 78/7
+f 26/58 30/5 27/59
+f 10/30 74/29 70/22
+f 20/60 34/46 25/61
+f 67/9 23/62 41/34
+f 24/63 19/64 45/65
+f 53/55 49/38 43/37
+f 76/53 69/20 70/22
+f 24/63 7/52 8/11
+f 24/63 8/11 57/66
+f 24/63 57/66 19/64
+f 65/67 59/68 16/49
+f 32/69 37/40 10/30
+f 26/58 27/59 61/70
+f 53/55 75/71 49/38
+f 8/11 42/18 57/66
+f 75/45 55/72 66/73
+f 10/30 70/22 56/74
+f 35/75 43/37 39/23
+f 76/53 70/22 74/29
+f 23/76 64/25 41/33
+f 27/59 18/77 61/70
+f 12/47 38/78 30/5
+f 46/48 78/7 61/79
+f 60/80 64/25 23/76
+f 60/80 23/76 71/81
+f 33/82 59/68 58/83
+f 33/82 58/83 72/8
+f 72/8 71/51 67/9
+f 60/84 31/85 13/86
+f 35/75 39/23 51/56
+f 60/84 13/86 36/87
+f 62/88 32/69 56/74
+f 51/56 39/23 50/16
+f 60/84 71/89 31/85
+f 75/71 66/90 49/38
+f 65/91 29/21 69/20
+f 65/91 69/20 48/92
+f 53/55 76/57 17/93
+f 36/94 42/18 64/25
+f 36/94 64/25 60/80
+f 13/95 54/96 40/97
+f 77/98 3/26 37/99
+f 77/100 37/40 32/69
+f 68/101 62/88 56/74
+f 77/100 32/69 62/88
+f 18/102 68/103 46/48
+f 44/41 22/6 21/42
+f 14/104 36/94 13/105
+f 14/106 13/107 40/39
+f 78/7 67/9 41/34
+f 47/108 29/21 4/109
+f 14/104 6/110 36/94
+f 27/59 38/78 18/77
+f 47/108 56/74 70/22
+f 47/108 70/22 29/21
+f 66/90 6/111 14/106
+f 66/90 14/106 40/39
+f 66/90 40/39 49/38
+f 65/91 16/112 68/101
+f 36/94 6/110 57/66
+f 36/94 57/66 42/18
+f 45/44 55/72 75/45
+f 68/101 38/113 62/88
+f 65/91 68/101 47/108
+f 77/100 62/88 12/114
+f 66/73 55/72 6/115
+f 54/116 39/23 43/37
+f 16/49 59/68 33/82
+f 37/99 34/46 20/60
+f 77/100 12/114 44/117
+f 53/55 43/37 35/75
+f 48/14 50/16 58/118
+f 48/119 58/83 59/68
+f 6/115 55/72 19/120
+f 6/110 19/64 57/66
+f 54/116 43/37 40/39
+f 25/61 34/46 75/45
+f 62/88 38/113 12/114
+f 65/91 48/92 59/121
+f 76/53 51/122 69/20
+f 9/28 34/46 63/123
+f 19/120 55/72 45/44
+f 65/91 47/108 4/109
+f 63/123 34/46 37/99
+f 16/49 33/82 72/8
+f 47/108 68/101 56/74
+f 3/26 9/28 63/123
+f 53/55 35/75 51/56
+f 3/26 63/123 37/99
+f 74/29 20/31 17/54
+f 53/55 25/124 75/71
+f 11/32 28/2 5/13
+f 11/32 5/13 7/125
+f 73/126 54/127 13/128
+f 22/6 11/32 7/125
+f 22/6 7/125 24/129
+f 22/130 24/131 9/28
+f 50/132 73/133 58/83
+f 20/60 25/61 17/134
+f 44/41 15/4 22/6
+f 72/8 58/83 31/50
+f 65/91 4/109 29/21
+f 53/55 17/93 25/124
+f 31/50 58/83 73/133
+f 21/135 22/136 9/137
+f 10/30 56/74 32/69
+f 67/9 71/51 23/62
+f 77/98 44/138 3/26
+f 27/59 30/5 38/78
+f 31/85 73/139 13/86
+f 68/101 18/140 38/113
+f 24/131 45/44 9/28
+f 73/24 39/23 54/116
+f 26/141 61/79 78/7
+f 26/141 78/7 41/34
+f 44/41 12/47 15/4
+f 26/141 41/34 52/36
+f 46/48 68/103 16/49
+f 18/102 46/48 61/79
+f 26/58 52/3 28/2

data/shaders/blinn_phong.glsl

@@ -0,0 +1,63 @@
+Copyright (c) 2006-2007 dhpoware. All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+
+-------------------------------------------------------------------------------
+
+Per-fragment Blinn-Phong shader for a single directional light source.
+
+[vert]
+
+#version 110
+
+varying vec3 normal;
+
+void main()
+{
+    normal = normalize(gl_NormalMatrix * gl_Normal);
+
+    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
+    gl_TexCoord[0] = gl_MultiTexCoord0;    
+}
+
+[frag]
+
+#version 110
+
+uniform sampler2D colorMap;
+uniform float materialAlpha;
+
+varying vec3 normal;
+
+void main()
+{   
+    vec3 n = normalize(normal);
+
+    float nDotL = max(0.0, dot(n, gl_LightSource[0].position.xyz));
+    float nDotH = max(0.0, dot(normal, vec3(gl_LightSource[0].halfVector)));
+    float power = (nDotL == 0.0) ? 0.0 : pow(nDotH, gl_FrontMaterial.shininess);
+    
+    vec4 ambient = gl_FrontLightProduct[0].ambient;
+    vec4 diffuse = gl_FrontLightProduct[0].diffuse * nDotL;
+    vec4 specular = gl_FrontLightProduct[0].specular * power;
+    vec4 color = gl_FrontLightModelProduct.sceneColor + ambient + diffuse + specular;
+    
+    gl_FragColor = color * texture2D(colorMap, gl_TexCoord[0].st);
+    gl_FragColor.a = materialAlpha;
+}

data/shaders/normal_mapping.glsl

@@ -0,0 +1,89 @@
+Copyright (c) 2006-2007 dhpoware. All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+
+-------------------------------------------------------------------------------
+
+Tangent space normal mapping shader for a single directional light source.
+
+The tangent vector is passed to the vertex shader in gl_MultiTexCoord1. The
+tangent vector is assumed to be a four component vector. The tangent vector's
+w component indicates the handedness of the local tangent space at this vertex.
+The handedness is used to calculate the bitangent vector. The reason for the
+inclusion of the handedness component is to allow for triangles with mirrored
+texture mappings.
+
+-------------------------------------------------------------------------------
+
+[vert]
+
+#version 110
+
+varying vec3 lightDir;
+varying vec3 halfVector;
+
+void main()
+{
+    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
+    gl_TexCoord[0] = gl_MultiTexCoord0;
+    
+    vec3 n = normalize(gl_NormalMatrix * gl_Normal);
+    vec3 t = normalize(gl_NormalMatrix * gl_MultiTexCoord1.xyz);
+    vec3 b = cross(n, t) * gl_MultiTexCoord1.w;
+        
+    mat3 tbnMatrix = mat3(t.x, b.x, n.x,
+                          t.y, b.y, n.y,
+                          t.z, b.z, n.z);
+
+    lightDir = gl_LightSource[0].position.xyz;
+    lightDir = tbnMatrix * lightDir;
+
+    halfVector = gl_LightSource[0].halfVector.xyz;
+    halfVector = tbnMatrix * halfVector;
+}
+
+[frag]
+
+#version 110
+
+uniform sampler2D colorMap;
+uniform sampler2D normalMap;
+uniform float materialAlpha;
+
+varying vec3 lightDir;
+varying vec3 halfVector;
+
+void main()
+{
+    vec3 n = normalize(texture2D(normalMap, gl_TexCoord[0].st).rgb * 2.0 - 1.0);
+    vec3 l = normalize(lightDir);
+    vec3 h = normalize(halfVector);
+
+    float nDotL = max(0.0, dot(n, l));
+    float nDotH = max(0.0, dot(n, h));
+    float power = (nDotL == 0.0) ? 0.0 : pow(nDotH, gl_FrontMaterial.shininess);
+    
+    vec4 ambient = gl_FrontLightProduct[0].ambient;
+    vec4 diffuse = gl_FrontLightProduct[0].diffuse * nDotL;
+    vec4 specular = gl_FrontLightProduct[0].specular * power;
+    vec4 color = gl_FrontLightModelProduct.sceneColor + ambient + diffuse + specular;
+    
+    gl_FragColor = color * texture2D(colorMap, gl_TexCoord[0].st);
+    gl_FragColor.a = materialAlpha;
+}

engine/CMakeLists.txt

@@ -6,6 +6,7 @@ FIND_PACKAGE (SDL REQUIRED)
 FIND_PACKAGE (SDL_mixer REQUIRED)
 FIND_PACKAGE (SDL_net REQUIRED)
 FIND_PACKAGE (OpenGL REQUIRED)
+FIND_PACKAGE (GLEW REQUIRED)
 FIND_PACKAGE (PNG REQUIRED)
 FIND_PACKAGE (FreeType2 REQUIRED)
 FIND_PACKAGE (Boost COMPONENTS filesystem system REQUIRED)
@@ -33,6 +34,7 @@ SET ( ENGINE_SRCS
 	VariablesCommands.cc
 	SimpleConsoleOverlay.cc
 	Sprite.cc
+	OBJModel.cc
 	IMGUIControls.cc
 
 	Engine.cc
@@ -51,6 +53,7 @@ INCLUDE_DIRECTORIES (
 	libraries/oglft/liboglft
 	libraries/sha2/
 	${FREETYPE2_INCLUDE_DIR}
+	${GLEW_INCLUDE_DIR}
 	)
 
 ADD_LIBRARY ( Engine STATIC ${ENGINE_SRCS} )
@@ -60,6 +63,7 @@ TARGET_LINK_LIBRARIES ( Engine
 	${SDLMIXER_LIBRARY}
 	${SDLNET_LIBRARY}
 	${OPENGL_LIBRARIES}
+	${GLEW_LIBRARIES}
 	${PNG_LIBRARIES}
 	${Boost_LIBRARIES}
 	mathlib

engine/Commands.cc

@@ -186,7 +186,7 @@ void CommandSetErrorString (const std::string &error_str){
 
 std::string CommandGetErrorString (){
 	if (!CommandsInitialized ())
-		return false;
+		return std::string("");
 
 	return CommandsInstance->GetErrorString();
 }

engine/Engine.h

@@ -19,11 +19,15 @@
 #include <limits>
 
 #include <boost/filesystem.hpp>
+#include <boost/shared_ptr.hpp>
 
 #include "Module.h"
 #include "EngineEnums.h"
 #include "Utils.h"
 
+// Note: glew.h must be included before any other OpenGL include file!
+#include <glew.h>
+
 // Some ugly #defines
 
 /** \brief Defines the number of keys that can be defined for an EntityController

engine/IMGUIControls.cc

@@ -34,7 +34,7 @@ bool regionhit (int x, int y, int w, int h) {
 
 void DrawBlock (int x, int y, int w, int h) {
 	const float shading_dark = 0.5f;
-	const float shading_light = 1.3f;
+	// const float shading_light = 1.3f;
 
 	float color[4];
 	glGetFloatv (GL_CURRENT_COLOR, color);
@@ -297,6 +297,8 @@ bool Button (int id, const char* caption, int x, int y, int w, int h) {
 				controller->uistate.kbditem = 0;
 				return true;
 				break;
+			default:
+				break;
 		}
 	}
 
@@ -418,6 +420,8 @@ bool CheckButton (int id, const char* caption, bool checked, int x, int y, int w
 
 				return true;
 				break;
+			default:
+				break;
 		}
 	}
 
@@ -541,7 +545,7 @@ bool LineEdit (int id, int x, int y, std::string &text_value, const int &maxleng
 				break;
 			default:
 				// The raw input processing
-				if (maxlength > 0 && text_value.size() < maxlength) {
+				if (maxlength > 0 && static_cast<int>(text_value.size()) < maxlength) {
 					if (controller->uistate.last_unicode) {	
 						if ((controller->uistate.last_unicode & 0xFF80) == 0) {
 							// we do not want to add special characters such as backspaces
@@ -681,7 +685,7 @@ bool LineEditMasked (int id, int x, int y, std::string &text_value, const int &m
 				break;
 			default:
 				// The raw input processing
-				if (maxlength > 0 && text_value.size() < maxlength) {
+				if (maxlength > 0 && static_cast<int>(text_value.size()) < maxlength) {
 					if (controller->uistate.last_unicode) {	
 						if ((controller->uistate.last_unicode & 0xFF80) == 0) {
 							char c = controller->uistate.last_unicode & 0x7F;
@@ -789,6 +793,8 @@ float VerticalSlider (int id, int x, int y, int w, int h, float min_value, float
 				controller->uistate.last_keysym = SDLK_CLEAR;
 				return true;
 				break;
+			default:
+				break;
 		}
 	}
 

engine/OBJModel.h

@@ -0,0 +1,244 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2007 dhpoware. All Rights Reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifndef _OBJMODEL_H
+#define _OBJMODEL_H
+
+#include <map>
+#include <string>
+#include <vector>
+
+//-----------------------------------------------------------------------------
+// Alias|Wavefront OBJ file loader.
+//
+// This OBJ file loader contains the following restrictions:
+// 1. Group information is ignored. Faces are grouped based on the material
+//    that each face uses.
+// 2. Object information is ignored. This loader will merge everything into a
+//    single object.
+// 3. The MTL file must be located in the same directory as the OBJ file. If
+//    it isn't then the MTL file will fail to load and a default material is
+//    used instead.
+// 4. This loader triangulates all polygonal faces during importing.
+//-----------------------------------------------------------------------------
+
+namespace Engine {
+
+	class OBJModel
+	{
+		public:
+			struct Material
+			{
+				float ambient[4];
+				float diffuse[4];
+				float specular[4];
+				float shininess;        // [0 = min shininess, 1 = max shininess]
+				float alpha;            // [0 = fully transparent, 1 = fully opaque]
+
+				std::string name;
+				std::string colorMapFilename;
+				std::string bumpMapFilename;
+			};
+
+			struct Vertex
+			{
+				float position[3];
+				float texCoord[2];
+				float normal[3];
+				float tangent[4];
+				float bitangent[3];
+			};
+
+			struct Mesh
+			{
+				int startIndex;
+				int triangleCount;
+				const Material *pMaterial;
+			};
+
+			OBJModel();
+			~OBJModel();
+
+			void destroy();
+			bool import(const char *pszFilename, bool rebuildNormals = false);
+			void normalize(float scaleTo = 1.0f, bool center = true);
+			void reverseWinding();
+
+			// Getter methods.
+
+			void getCenter(float &x, float &y, float &z) const;
+			float getWidth() const;
+			float getHeight() const;
+			float getLength() const;
+			float getRadius() const;
+
+			const int *getIndexBuffer() const;
+			int getIndexSize() const;
+
+			const Material &getMaterial(int i) const;
+			const Mesh &getMesh(int i) const;
+
+			int getNumberOfIndices() const;
+			int getNumberOfMaterials() const;
+			int getNumberOfMeshes() const;
+			int getNumberOfTriangles() const;
+			int getNumberOfVertices() const;
+
+			const std::string &getPath() const;
+
+			const Vertex &getVertex(int i) const;
+			const Vertex *getVertexBuffer() const;
+			int getVertexSize() const;
+
+			bool hasNormals() const;
+			bool hasPositions() const;
+			bool hasTangents() const;
+			bool hasTextureCoords() const;
+
+		private:
+			void addTrianglePos(int index, int material,
+					int v0, int v1, int v2);
+			void addTrianglePosNormal(int index, int material,
+					int v0, int v1, int v2,
+					int vn0, int vn1, int vn2);
+			void addTrianglePosTexCoord(int index, int material,
+					int v0, int v1, int v2,
+					int vt0, int vt1, int vt2);
+			void addTrianglePosTexCoordNormal(int index, int material,
+					int v0, int v1, int v2,
+					int vt0, int vt1, int vt2,
+					int vn0, int vn1, int vn2);
+			int addVertex(int hash, const Vertex *pVertex);
+			void bounds(float center[3], float &width, float &height,
+					float &length, float &radius) const;
+			void buildMeshes();
+			void generateNormals();
+			void generateTangents();
+			void importGeometryFirstPass(FILE *pFile);
+			void importGeometrySecondPass(FILE *pFile);
+			bool importMaterials(const char *pszFilename);
+			void scale(float scaleFactor, float offset[3]);
+
+			bool m_hasPositions;
+			bool m_hasTextureCoords;
+			bool m_hasNormals;
+			bool m_hasTangents;
+
+			int m_numberOfVertexCoords;
+			int m_numberOfTextureCoords;
+			int m_numberOfNormals;
+			int m_numberOfTriangles;
+			int m_numberOfMaterials;
+			int m_numberOfMeshes;
+
+			float m_center[3];
+			float m_width;
+			float m_height;
+			float m_length;
+			float m_radius;
+
+			std::string m_directoryPath;
+
+			std::vector<Mesh> m_meshes;
+			std::vector<Material> m_materials;
+			std::vector<Vertex> m_vertexBuffer;
+			std::vector<int> m_indexBuffer;
+			std::vector<int> m_attributeBuffer;
+			std::vector<float> m_vertexCoords;
+			std::vector<float> m_textureCoords;
+			std::vector<float> m_normals;
+
+			std::map<std::string, int> m_materialCache;
+			std::map<int, std::vector<int> > m_vertexCache;
+	};
+
+	//-----------------------------------------------------------------------------
+
+	inline void OBJModel::getCenter(float &x, float &y, float &z) const
+	{ x = m_center[0]; y = m_center[1]; z = m_center[2]; }
+
+	inline float OBJModel::getWidth() const
+	{ return m_width; }
+
+	inline float OBJModel::getHeight() const
+	{ return m_height; }
+
+	inline float OBJModel::getLength() const
+	{ return m_length; }
+
+	inline float OBJModel::getRadius() const
+	{ return m_radius; }
+
+	inline const int *OBJModel::getIndexBuffer() const
+	{ return &m_indexBuffer[0]; }
+
+	inline int OBJModel::getIndexSize() const
+	{ return static_cast<int>(sizeof(int)); }
+
+	inline const OBJModel::Material &OBJModel::getMaterial(int i) const
+	{ return m_materials[i]; }
+
+	inline const OBJModel::Mesh &OBJModel::getMesh(int i) const
+	{ return m_meshes[i]; }
+
+	inline int OBJModel::getNumberOfIndices() const
+	{ return m_numberOfTriangles * 3; }
+
+	inline int OBJModel::getNumberOfMaterials() const
+	{ return m_numberOfMaterials; }
+
+	inline int OBJModel::getNumberOfMeshes() const
+	{ return m_numberOfMeshes; }
+
+	inline int OBJModel::getNumberOfTriangles() const
+	{ return m_numberOfTriangles; }
+
+	inline int OBJModel::getNumberOfVertices() const
+	{ return static_cast<int>(m_vertexBuffer.size()); }
+
+	inline const std::string &OBJModel::getPath() const
+	{ return m_directoryPath; }
+
+	inline const OBJModel::Vertex &OBJModel::getVertex(int i) const
+	{ return m_vertexBuffer[i]; }
+
+	inline const OBJModel::Vertex *OBJModel::getVertexBuffer() const
+	{ return &m_vertexBuffer[0]; }
+
+	inline int OBJModel::getVertexSize() const
+	{ return static_cast<int>(sizeof(Vertex)); }
+
+	inline bool OBJModel::hasNormals() const
+	{ return m_hasNormals; }
+
+	inline bool OBJModel::hasPositions() const
+	{ return m_hasPositions; }
+
+	inline bool OBJModel::hasTangents() const
+	{ return m_hasTangents; }
+
+	inline bool OBJModel::hasTextureCoords() const
+	{ return m_hasTextureCoords; }
+
+}
+
+#endif

engine/SoundBase.h

@@ -11,8 +11,8 @@ class Module;
 class SoundSample {
 	public:
 		SoundSample() :
-			mMixChunk (NULL),
+			mChannel (-1),
-			mChannel (-1) {
+			mMixChunk (NULL) {
 			}
 		~SoundSample();
 

engine/Sprite.cc

@@ -125,8 +125,8 @@ bool Sprite::LoadFromPNG (const std::string &filename) {
 	png_read_image(png_ptr, row_pointers);
 
 	//Now generate the OpenGL texture object
-	glGenTextures(1, &mGlTextureName);
+	glGenTextures(1, &mGLTextureName);
-	glBindTexture(GL_TEXTURE_2D, mGlTextureName);
+	glBindTexture(GL_TEXTURE_2D, mGLTextureName);
 
 	bool mipmap = false;
 
@@ -151,6 +151,25 @@ bool Sprite::LoadFromPNG (const std::string &filename) {
 	return true;
 }
 
+void draw_sprite_helper (float u_start, float u_end, float width, float height) {
+	/*
+	// debug drawing with colors
+	glBegin(GL_QUADS);
+	glTexCoord2f (u_start, 0.f); glColor3f (1.f, 0.f, 0.f); glVertex3f (0.f, 0.f, 0.f);
+	glTexCoord2f (u_end,   0.f); glColor3f (0.f, 1.f, 0.f); glVertex3f (0.f, 0.f, height);
+	glTexCoord2f (u_end,   1.f); glColor3f (0.f, 0.f, 1.f); glVertex3f (width, 0.f, height);
+	glTexCoord2f (u_start, 1.f); glColor3f (1.f, 0.f, 1.f); glVertex3f (width, 0.f,0.f);
+	glEnd();
+	*/
+
+	glBegin(GL_QUADS);
+	glTexCoord2f (u_start, 0.f); glVertex3f (0.f, 0.f, 0.f);
+	glTexCoord2f (u_end,   0.f); glVertex3f (0.f, 0.f, height);
+	glTexCoord2f (u_end,   1.f); glVertex3f (width, 0.f, height);
+	glTexCoord2f (u_start, 1.f); glVertex3f (width, 0.f,0.f);
+	glEnd();
+}
+
 void Sprite::DrawAt (float xpos, float ypos, float zpos) {
 	float u_start = 0., u_end = 1.;
 	if (mAnimation) {
@@ -167,14 +186,9 @@ void Sprite::DrawAt (float xpos, float ypos, float zpos) {
 	glEnable(GL_BLEND);
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
-	glBindTexture (GL_TEXTURE_2D, mGlTextureName);
+	glBindTexture (GL_TEXTURE_2D, mGLTextureName);
 
-	glBegin(GL_QUADS);
+	draw_sprite_helper (u_start, u_end, mWidth, mHeight);
-	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();
 
@@ -200,15 +214,13 @@ void Sprite::DrawAt2D (float xpos, float ypos) {
 	glEnable(GL_BLEND);
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
-	glBindTexture (GL_TEXTURE_2D, mGlTextureName);
+	glBindTexture (GL_TEXTURE_2D, mGLTextureName);
-
+	glBegin (GL_QUADS);
-	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();
+	glEnd ();
-
 	glPopMatrix();
 
 	glDisable(GL_TEXTURE_2D);
@@ -229,14 +241,9 @@ void Sprite::DrawSubAt (unsigned int index, float xpos, float ypos, float zpos)
 	glEnable(GL_BLEND);
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
-	glBindTexture (GL_TEXTURE_2D, mGlTextureName);
+	glBindTexture (GL_TEXTURE_2D, mGLTextureName);
 
-	glBegin(GL_QUADS);
+	draw_sprite_helper (u_start, u_end, mWidth, mHeight);
-	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();
 

engine/Sprite.h

@@ -2,29 +2,70 @@
 #define SPRITE_H
 
 #include <cmath>
+#include <boost/shared_ptr.hpp>
 
 namespace Engine {
 
+/** \brief A simple sprite class that allows animations and multiple sprites in one image
+ *
+ * Sprites are drawn aligned with the XZ-plane and the Y-axis pointing up.
+ *
+ */
 class Sprite {
 	public:
-		Sprite() {
+		Sprite() :
-			mScale = 1.;
+			mScale (1.f),
-			mWidth = 0;
+			mWidth (0),
-			mHeight = 0;
+			mHeight (0),
-			mGlTextureName = 0;
+			mGLTextureName (0),
-
+			mSubSpriteCount (1),
-			mAnimation = false;
+			mAnimation (false),
-			mSubSpriteCount = 1;
+			mAnimationFrameCount(1),
+			mAnimationTimer(0.f),
+			mAnimationFrameRate(0.f)
+		{ }
+		Sprite (const Sprite &othersprite) :
+			mScale (othersprite.mScale),
+			mWidth (othersprite.mWidth),
+			mHeight (othersprite.mHeight),
+			mGLTextureName (othersprite.mGLTextureName),
+			mSubSpriteCount (othersprite.mSubSpriteCount),
+			mAnimation (othersprite.mAnimation),
+			mAnimationFrameCount(othersprite.mAnimationFrameCount),
+			mAnimationTimer(othersprite.mAnimationTimer),
+			mAnimationFrameRate(othersprite.mAnimationFrameRate)
+			{}
+		Sprite& operator= (const Sprite &othersprite) {
+			if (this != &othersprite) {
+				mScale = othersprite.mScale;
+				mWidth = othersprite.mWidth;
+				mHeight = othersprite.mHeight;
+				mGLTextureName = othersprite.mGLTextureName;
+				mSubSpriteCount = othersprite.mSubSpriteCount;
+				mAnimation = othersprite.mAnimation;
+				mAnimationFrameCount= othersprite.mAnimationFrameCount;
+				mAnimationTimer= othersprite.mAnimationTimer;
+				mAnimationFrameRate= othersprite.mAnimationFrameRate;
 			}
 
+			return *this;
+		}
+
+		/** \brief Loads a Sprite from a .png file */
 		bool LoadFromPNG (const std::string &filename);
+		/** \brief Draws a sprite with the center at the given position */
 		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 SetSize (unsigned int width, unsigned int height) {
+			mWidth = width;
+			mHeight = height;
+		}
 		void SetScale (float scale) { mScale = scale; };
 
+		/** \brief Marks the sprite as an animation and initializes its animation values */
 		void SetAnimation (int frame_count, float frame_rate) {
 			mAnimation = true;
 			mAnimationFrameCount = frame_count;
@@ -42,6 +83,18 @@ class Sprite {
 			}
 		}
 
+		void SetGLTextureName (GLuint texture_name) {
+			mGLTextureName = texture_name;
+		}
+		GLuint GetGLTextureName () {
+			return mGLTextureName;
+		}
+
+		/** \brief Marks the Sprite as a collection of sprites
+		 *
+		 * All sprites have to be aligned in a row and the SubSprite
+		 * functionality eases retrieval and drawing of individual sprites
+		 */
 		void SetSubSpriteCount (const unsigned int count) {
 			mSubSpriteCount = count;
 			mWidth = static_cast<unsigned int>(ceil (static_cast<float> (mWidth / mSubSpriteCount)));
@@ -56,7 +109,7 @@ class Sprite {
 
 		unsigned int mWidth;
 		unsigned int mHeight;
-		unsigned int mGlTextureName;
+		GLuint mGLTextureName;
 
 		unsigned int mSubSpriteCount;
 
@@ -66,6 +119,8 @@ class Sprite {
 		float mAnimationFrameRate;
 };
 
+typedef boost::shared_ptr<Sprite> SpritePtr;
+
 }
 
 #endif /* SPRITE_H */

engine/ViewBase.cc

@@ -11,6 +11,8 @@
 #include <GL/gl.h>
 #include <GL/glu.h>
 
+#include "OBJModel.h"
+
 #include "DrawingsGL.h"
 
 using namespace std;
@@ -61,6 +63,75 @@ int ViewBase::OnInit (int argc, char* argv[]) {
 	InitGL ();
 	Resize (mWindowWidth, mWindowHeight);
 
+	// Initialize GLEW and check for anything we need
+	GLenum err = glewInit();
+	if (GLEW_OK != err) {
+		LogError ("Could not init GLEW properly: %s", glewGetErrorString(err));
+	}
+
+	LogDebug ("Using GLEW version %s", glewGetString(GLEW_VERSION));
+	if (glewIsExtensionSupported("GL_ARB_vertex_buffer_object")) {
+	} else {
+		LogError ("VBOs are not supported!");
+	}
+
+	// read OpenGL version
+	std::string gl_version (reinterpret_cast<const char*>(glGetString(GL_VERSION)));
+	if (gl_version.size() == 0)
+		LogError ("Could not retrieve GL version!");
+
+	std::string major_number_str = gl_version.substr(0, gl_version.find('.'));
+	std::string minor_number_str = gl_version.substr(major_number_str.size() + 1, gl_version.find_first_of(". ", major_number_str.size()));
+
+	mGLVersionInfo.GLMajor = atoi (major_number_str.c_str());
+	mGLVersionInfo.GLMinor = atoi (minor_number_str.c_str());
+
+	// read GLSL version
+	std::string glsl_version (reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION)));
+	if (glsl_version.size() == 0)
+		LogError ("Could not retrieve GLSL version!");
+
+	major_number_str = glsl_version.substr(0, glsl_version.find('.'));
+	minor_number_str = glsl_version.substr(major_number_str.size() + 1, glsl_version.find_first_of(". ", major_number_str.size()));
+
+	mGLVersionInfo.GLSLMajor = atoi (major_number_str.c_str());
+	mGLVersionInfo.GLSLMinor = atoi (minor_number_str.c_str());
+
+	LogMessage ("GL Version = %s, gl_major = %d, gl_minor = %d", gl_version.c_str(), mGLVersionInfo.GLMajor, mGLVersionInfo.GLMinor);
+	LogMessage ("GLSL Version = %s, gl_major = %d, gl_minor = %d", gl_version.c_str(), mGLVersionInfo.GLSLMajor, mGLVersionInfo.GLSLMinor);
+
+	if (mGLVersionInfo.GLMajor >= 2 && mGLVersionInfo.GLMinor >= 0)
+		mUseShaders = true;
+	else
+		mUseShaders = false;
+
+	// load the shaders if possible
+	if (mUseShaders) {
+		mBlinnPhongShader = LoadShaderProgram (GetResourceFullPath("/data/shaders/blinn_phong.glsl"));
+		mNormalMappingShader = LoadShaderProgram (GetResourceFullPath("/data/shaders/normal_mapping.glsl"));
+	} else {
+		mBlinnPhongShader = 0;
+		mNormalMappingShader = 0;
+	}
+
+	// Create a null texture that can be used for objects without textures
+	// taken from http://www.dhpoware.com/demos/glslNormalMapping.html
+	int pitch = ((2 * 32 + 31) & ~31) >> 3; // align to 4-byte boundaries
+	std::vector<GLubyte> pixels(pitch * 2, 255);
+	mNullTexture = 0;
+
+	glGenTextures(1, &mNullTexture);
+	glBindTexture(GL_TEXTURE_2D, mNullTexture);
+
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, 2, 2, 0, GL_BGRA,
+			GL_UNSIGNED_BYTE, &pixels[0]);
+
+	// Load fonts etc.
 	LoadFont ("console.ttf");
 	mCurrentFont = mFonts["console.ttf"];
 
@@ -381,6 +452,510 @@ void ViewBase::DrawGLStringMeasure (const char* str, float *width, float *height
 //	LogDebug ("measure bbox '%s' = %f,%f %f,%f",str, bbox.x_min_, bbox.y_min_, bbox.x_max_, bbox.y_max_);
 }
 
+GLuint ViewBase::LoadTextureFromPNG (const std::string &filename) {
+	std::map<std::string, GLuint>::iterator texture_iterator = mGLTextures.find(filename);
+
+	if (texture_iterator != mGLTextures.end()) {
+		return texture_iterator->second;
+	}
+
+	Sprite temp_sprite;
+	temp_sprite.LoadFromPNG (filename.c_str());
+
+	// register the texture in the View
+	mGLTextures[filename] = temp_sprite.GetGLTextureName();
+
+	return temp_sprite.GetGLTextureName();
+}
+
+/*
+ * OBJModel loading and drawing
+ */
+
+
+OBJModelPtr ViewBase::LoadOBJModel (const std::string &model_filename) {
+	LogDebug ("Loading OBJ model %s", model_filename.c_str());
+
+	OBJModelPtr result_model (new OBJModel);
+
+	if(!result_model->import (model_filename.c_str(), true)) {
+		LogError("Could not load model %s", model_filename.c_str());
+		return result_model;
+	}
+
+	result_model->normalize();
+	result_model->reverseWinding();
+
+	// Load any associated textures.
+	// Note the path where the textures are assumed to be located.
+
+	const OBJModel::Material *pMaterial = 0;
+	GLuint textureId = 0;
+	std::string::size_type offset = 0;
+	std::string filename;
+
+	for (int i = 0; i < result_model->getNumberOfMaterials(); ++i)
+	{
+		pMaterial = &result_model->getMaterial(i);
+
+		// Look for and load any diffuse color map textures.
+		if (!pMaterial->colorMapFilename.empty()) {
+			// Try load the texture using the path in the .MTL file.
+			textureId = LoadTextureFromPNG(pMaterial->colorMapFilename.c_str());
+
+			if (!textureId)
+			{
+				offset = pMaterial->colorMapFilename.find_last_of('\\');
+
+				if (offset != std::string::npos)
+					filename = pMaterial->colorMapFilename.substr(++offset);
+				else
+					filename = pMaterial->colorMapFilename;
+
+				// Try loading the texture from the same directory as the OBJ file.
+				textureId = LoadTextureFromPNG((filename).c_str());
+			}
+		} else {
+			LogMessage ("No diffuse color map found!");
+		}
+		
+		// Look for and load any normal map textures.
+		if (!pMaterial->bumpMapFilename.empty()) {
+
+			// Try load the texture using the path in the .MTL file.
+			textureId = LoadTextureFromPNG((pMaterial->bumpMapFilename).c_str());
+
+			if (!textureId)
+			{
+				offset = pMaterial->bumpMapFilename.find_last_of('\\');
+
+				if (offset != std::string::npos)
+					filename = pMaterial->bumpMapFilename.substr(++offset);
+				else
+					filename = pMaterial->bumpMapFilename;
+
+				// Try loading the texture from the same directory as the OBJ file.
+				textureId = LoadTextureFromPNG((result_model->getPath() + filename).c_str());
+			}
+		} else {
+			LogMessage ("Material has no bumpmap!");
+			continue;
+		}
+
+	}
+
+	// Update the window caption.
+
+	LogMessage ("Loaded model %s successful, dimensions (whl): %f, %f, %f meshes %d vertices %d triangles: %d", 
+			model_filename.c_str(), 
+			result_model->getWidth(),
+			result_model->getHeight(),
+			result_model->getLength(),
+			result_model->getNumberOfMeshes(),
+			result_model->getNumberOfVertices(),
+			result_model->getNumberOfTriangles()
+			);
+
+	return result_model;
+}
+
+void ViewBase::DrawOBJModel (OBJModelPtr obj_model) {
+	if (mUseShaders) {
+		DrawOBJModelShaded(obj_model);
+	} else {
+		DrawOBJModelSolid (obj_model);
+	}
+}
+
+void ViewBase::DrawOBJModelSolid (OBJModelPtr obj_model) {
+	const OBJModel::Mesh *pMesh = 0;
+	const OBJModel::Material *pMaterial = 0;
+	const OBJModel::Vertex *pVertices = 0;
+	std::map<std::string, GLuint>::const_iterator iter;
+
+	for (int i = 0; i < obj_model->getNumberOfMeshes(); ++i)
+	{
+		pMesh = &obj_model->getMesh(i);
+		pMaterial = pMesh->pMaterial;
+		pVertices = obj_model->getVertexBuffer();
+
+		glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT,  pMaterial->ambient);
+		glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE,  pMaterial->diffuse);
+		glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, pMaterial->specular);
+
+		glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, pMaterial->shininess * 128.0f);
+
+		if (pMaterial->colorMapFilename.size() > 0)
+		{
+			iter = mGLTextures.find(pMaterial->colorMapFilename);
+
+			if (iter == mGLTextures.end())
+			{
+				LogError ("Could not find required colormap '%s'", pMaterial->colorMapFilename.c_str());
+				glDisable(GL_TEXTURE_2D);
+			}
+			else
+			{
+				glEnable(GL_TEXTURE_2D);
+				glBindTexture(GL_TEXTURE_2D, iter->second);
+			}
+		}
+		else
+		{
+			glDisable(GL_TEXTURE_2D);
+		}
+
+		if (obj_model->hasPositions())
+		{
+			glEnableClientState(GL_VERTEX_ARRAY);
+			glVertexPointer(3, GL_FLOAT, obj_model->getVertexSize(),
+					obj_model->getVertexBuffer()->position);
+		}
+
+		if (obj_model->hasTextureCoords())
+		{
+			glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+			glTexCoordPointer(2, GL_FLOAT, obj_model->getVertexSize(),
+					obj_model->getVertexBuffer()->texCoord);
+		}
+
+		if (obj_model->hasNormals())
+		{
+			glEnableClientState(GL_NORMAL_ARRAY);
+			glNormalPointer(GL_FLOAT, obj_model->getVertexSize(),
+					obj_model->getVertexBuffer()->normal);
+		}
+
+		glDrawElements(GL_TRIANGLES, pMesh->triangleCount * 3, GL_UNSIGNED_INT,
+				obj_model->getIndexBuffer() + pMesh->startIndex);
+
+		if (obj_model->hasNormals())
+			glDisableClientState(GL_NORMAL_ARRAY);
+
+		if (obj_model->hasTextureCoords())
+			glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+
+		if (obj_model->hasPositions())
+			glDisableClientState(GL_VERTEX_ARRAY);
+
+		// disable texture drawing if active
+		if (pMaterial->colorMapFilename.size() > 0)
+			glDisable(GL_TEXTURE_2D);
+	}
+}
+
+void ViewBase::DrawOBJModelShaded (OBJModelPtr obj_model) {
+	const OBJModel::Mesh *pMesh = 0;
+	const OBJModel::Material *pMaterial = 0;
+	const OBJModel::Vertex *pVertices = 0;
+	std::map<std::string, GLuint>::const_iterator iter;
+	GLuint texture = 0;
+
+	for (int i = 0; i < obj_model->getNumberOfMeshes(); ++i)
+	{
+		pMesh = &obj_model->getMesh(i);
+		pMaterial = pMesh->pMaterial;
+		pVertices = obj_model->getVertexBuffer();
+
+		glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, pMaterial->ambient);
+		glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, pMaterial->diffuse);
+		glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, pMaterial->specular);
+		glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, pMaterial->shininess * 128.0f);
+
+		// if there is no bumpmap we will simply use a blinn phong shader and draw
+		// the color map onto our model
+		if (pMaterial->bumpMapFilename.empty())
+		{
+			// LogMessage ("using Blinn Phong shader");
+			// Per fragment Blinn-Phong code path.
+			glUseProgram(mBlinnPhongShader);
+
+			// Bind the color map texture.
+
+			texture = mNullTexture;
+
+			if (pMaterial->colorMapFilename.size() > 0) {
+				iter = mGLTextures.find(pMaterial->colorMapFilename);
+
+				if (iter != mGLTextures.end())
+					texture = iter->second;
+
+			} else {
+//				LogMessage ("Disabling textures");
+			}
+
+			glActiveTexture(GL_TEXTURE0);
+			glEnable(GL_TEXTURE_2D);
+			glBindTexture(GL_TEXTURE_2D, texture);
+
+			// Update shader parameters.
+			assert (glIsProgram (mBlinnPhongShader) == GL_TRUE);
+			assert (glGetUniformLocation(mBlinnPhongShader, "materialAlpha") != -1);
+			assert (glGetUniformLocation(mBlinnPhongShader, "colorMap") != -1);
+			glUniform1i(glGetUniformLocation(
+						mBlinnPhongShader, "colorMap"), 0);
+			glUniform1f(glGetUniformLocation(
+						mBlinnPhongShader, "materialAlpha"), pMaterial->alpha);
+		}
+		else
+		{
+			// if there is a bumpmap we use both the bump map and the color map and
+			// apply it on our model
+			
+			// LogMessage ("using Normal Mapping Shader");
+			// Normal mapping code path.
+
+			glUseProgram(mNormalMappingShader);
+
+			// Bind the normal map texture.
+
+			iter = mGLTextures.find(pMaterial->bumpMapFilename);
+
+			if (iter != mGLTextures.end()) {
+				texture = iter->second;
+
+				glActiveTexture(GL_TEXTURE1);
+				glEnable(GL_TEXTURE_2D);
+				glBindTexture(GL_TEXTURE_2D, texture);
+			} else {
+				LogError ("bumpmap %s not found", pMaterial->bumpMapFilename.c_str());
+			}
+
+			// Bind the color map texture.
+
+			texture = mNullTexture;
+
+			if (pMaterial->colorMapFilename.size() > 0)
+			{
+				iter = mGLTextures.find(pMaterial->colorMapFilename);
+
+				if (iter != mGLTextures.end()) {
+					texture = iter->second;
+				}	else {
+					LogError ("color map %s not found", pMaterial->colorMapFilename.c_str());
+				}
+			}
+
+			glActiveTexture(GL_TEXTURE0);
+			glEnable(GL_TEXTURE_2D);
+			glBindTexture(GL_TEXTURE_2D, texture);
+	
+			// Update shader parameters.
+			assert (glGetUniformLocation(mNormalMappingShader, "colorMap") != -1);
+			assert (glGetUniformLocation(mNormalMappingShader, "normalMap") != -1);
+			assert (glGetUniformLocation(mNormalMappingShader, "materialAlpha") != -1);
+
+			glUniform1i(glGetUniformLocation(
+						mNormalMappingShader, "colorMap"), 0);
+			glUniform1i(glGetUniformLocation(
+						mNormalMappingShader, "normalMap"), 1);
+			glUniform1f(glGetUniformLocation(
+						mNormalMappingShader, "materialAlpha"), pMaterial->alpha);
+		}        
+
+		// Render mesh.
+
+		if (obj_model->hasPositions())
+		{
+			glEnableClientState(GL_VERTEX_ARRAY);
+			glVertexPointer(3, GL_FLOAT, obj_model->getVertexSize(),
+					obj_model->getVertexBuffer()->position);
+		}
+
+		if (obj_model->hasTextureCoords())
+		{
+			glClientActiveTexture(GL_TEXTURE0);
+			glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+			glTexCoordPointer(2, GL_FLOAT, obj_model->getVertexSize(),
+					obj_model->getVertexBuffer()->texCoord);
+		}
+
+		if (obj_model->hasNormals())
+		{
+			glEnableClientState(GL_NORMAL_ARRAY);
+			glNormalPointer(GL_FLOAT, obj_model->getVertexSize(),
+					obj_model->getVertexBuffer()->normal);
+		}
+
+		if (obj_model->hasTangents())
+		{
+			glClientActiveTexture(GL_TEXTURE1);
+			glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+			glTexCoordPointer(4, GL_FLOAT, obj_model->getVertexSize(),
+					obj_model->getVertexBuffer()->tangent);
+		}
+
+		glDrawElements(GL_TRIANGLES, pMesh->triangleCount * 3, GL_UNSIGNED_INT,
+				obj_model->getIndexBuffer() + pMesh->startIndex);
+
+		if (obj_model->hasTangents())
+		{
+			glClientActiveTexture(GL_TEXTURE1);
+			glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+		}
+
+		if (obj_model->hasNormals())
+			glDisableClientState(GL_NORMAL_ARRAY);
+
+		if (obj_model->hasTextureCoords())
+		{
+			glClientActiveTexture(GL_TEXTURE0);
+			glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+		}
+
+		if (obj_model->hasPositions())
+			glDisableClientState(GL_VERTEX_ARRAY);
+	}
+
+	// as we might be using multiple textures (at least for the normal mapping
+	// case) we have to disable both textures
+	glActiveTexture(GL_TEXTURE1);
+	glBindTexture(GL_TEXTURE_2D, 0);
+
+	glActiveTexture(GL_TEXTURE0);
+	glBindTexture(GL_TEXTURE_2D, 0);
+	
+	glUseProgram(0);
+}
+
+/*
+ * Shader loading, compiling, linking
+ */
+/** Compiles a shader program
+ *
+ * This function contains code mainly taken from dhpowares excellent
+ * objviewer example (see http://www.dhpoware.com/demos/gl3NormalMapping.html ).
+ */
+GLuint ViewBase::CompileShader (GLenum type, const GLchar *source, GLint length) {
+	GLuint shader = glCreateShader(type);
+
+	if (shader) {
+		GLint compiled = 0;
+
+		glShaderSource (shader, 1, &source, &length);
+		glCompileShader(shader);
+		glGetShaderiv (shader, GL_COMPILE_STATUS, &compiled);
+
+		if (!compiled) {
+			GLsizei info_log_size = 0;
+			std::string info_log;
+
+			glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &info_log_size);
+			info_log.resize (info_log_size);
+			glGetShaderInfoLog (shader, info_log_size, &info_log_size, &info_log[0]);
+
+			LogError ("Error compiling shader: %s", info_log.c_str());
+		}
+	}
+
+	return shader;
+}
+
+/** Links the given shader programs
+ *
+ * This function contains code mainly taken from dhpowares excellent
+ * objviewer example (see http://www.dhpoware.com/demos/gl3NormalMapping.html ).
+ */
+GLuint ViewBase::LinkShaders (GLuint vertex_shader, GLuint fragment_shader) {
+	GLuint program = glCreateProgram();
+
+	if (program) {
+		GLint linked = 0;
+
+		if (vertex_shader)
+			glAttachShader (program, vertex_shader);
+
+		if (fragment_shader)
+			glAttachShader (program, fragment_shader);
+
+		glLinkProgram (program);
+		glGetProgramiv (program, GL_LINK_STATUS, &linked);
+
+		if (!linked) {
+			GLsizei info_log_size = 0;
+			std::string info_log;
+
+			glGetProgramiv(program, GL_INFO_LOG_LENGTH, &info_log_size);
+			info_log.resize (info_log_size);
+			glGetProgramInfoLog (program, info_log_size, &info_log_size, &info_log[0]);
+
+			LogError ("Error linking shaders vert: %d, frag: %d", vertex_shader, fragment_shader);
+		}
+
+		if (vertex_shader)
+			glDeleteShader (vertex_shader);
+
+		if (fragment_shader)
+			glDeleteShader (fragment_shader);
+	}
+
+	return program;
+}
+
+
+/** Loads a vertex or fragment shader program 
+ *
+ * This function contains code mainly taken from dhpowares excellent
+ * objviewer example (see http://www.dhpoware.com/demos/gl3NormalMapping.html ).
+ */
+GLuint ViewBase::LoadShaderProgram (const std::string &filename) {
+	LogDebug ("Loading shader program %s", filename.c_str());
+	
+	std::ifstream program_file (filename.c_str());
+	if (!program_file) {
+		LogError ("Could not open file '%s' while loading shader program", filename.c_str());
+	}
+
+	// read the whole file into a string
+	std::string shader_program ((std::istreambuf_iterator<char>(program_file)), std::istreambuf_iterator<char>());
+
+	program_file.close();
+
+	GLuint program = 0;
+
+	if (shader_program.size() > 0) {
+		const GLchar *source;
+		GLint length = 0;
+		GLuint vertex_shader = 0;
+		GLuint fragment_shader = 0;
+
+		std::string::size_type vertex_shader_offset = shader_program.find("[vert]");
+		std::string::size_type fragment_shader_offset = shader_program.find("[frag]");
+
+		if (vertex_shader_offset != std::string::npos) {
+			// skip over the [vert] tag
+			vertex_shader_offset += 6;
+			source = reinterpret_cast<const GLchar *> (&shader_program[vertex_shader_offset]);
+			length = static_cast<GLint>(fragment_shader_offset - vertex_shader_offset);
+			vertex_shader = CompileShader (GL_VERTEX_SHADER, source, length);
+
+			LogMessage ("Compiled vertex shader with id %d", vertex_shader);
+		}
+
+		if (fragment_shader_offset != std::string::npos) {
+			// skip over the [vert] tag
+			fragment_shader_offset += 6;
+			source = reinterpret_cast<const GLchar *> (&shader_program[fragment_shader_offset]);
+			length = static_cast<GLint>(shader_program.length() - fragment_shader_offset - 1);
+			fragment_shader = CompileShader (GL_FRAGMENT_SHADER, source, length);
+
+			LogMessage ("Compiled fragment shader with id %d", fragment_shader);
+		}
+
+		program = LinkShaders (vertex_shader, fragment_shader);
+
+		LogMessage ("Successfully linked shaders vert: %d frag: %d from file %s into program %d", vertex_shader, fragment_shader, filename.c_str(), program);
+	}
+
+	mShaderPrograms[filename] = program;
+
+	return program;
+}
+
+/*
+ * Camera and other auxillary functions
+ */
+
 void ViewBase::GetCamereEye (float *eye_out) {
 	assert (mCamera);
 	mCamera->GetEye (eye_out);
@@ -428,7 +1003,7 @@ void ViewBase::Resize (int width, int height) {
 	glViewport(0, 0, width, height);
 	glMatrixMode(GL_PROJECTION);
 	glLoadIdentity();
-	gluPerspective(mCamera->GetFOVY (), float (width) / float (height), 0.1, 100);
+	gluPerspective(mCamera->GetFOVY (), float (width) / float (height), 0., 100);
 
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity ();

engine/ViewBase.h

@@ -4,6 +4,7 @@
 #include "Engine.h"
 #include "EngineEnums.h"
 #include "OverlayBase.h"
+#include "Sprite.h"
 
 // forward declarations for the OGLFT fonts
 namespace OGLFT {
@@ -15,6 +16,9 @@ namespace Engine {
 class Module;
 class ModelBase;
 class CameraBase;
+class OBJModel;
+
+typedef boost::shared_ptr<OBJModel> OBJModelPtr;
 
 /** \brief Performs the actual drawing based on Camera and Model
  */
@@ -25,7 +29,7 @@ class ViewBase : public Module{
 		virtual ~ViewBase() {};
 
 		/** \brief Resizes the View */
-		void Resize (int width, int height);
+		virtual void Resize (int width, int height);
 		/** \brief Switches to fullscreen */
 		void SetFullscreen (bool fullscreen);
 		bool GetIsFullscreen () { return mDrawFullscreen; };
@@ -76,16 +80,6 @@ class ViewBase : public Module{
 		bool GetDrawGrid () { return mDrawGrid; };
 		void SetGridSize (int x, int z) {	mGridSizeX = x; mGridSizeZ = z;	}
 
-//		void AddOverlay (OverlayBasePtr 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);
-		*/
-	
 	private:
 	protected:
 		/** \brief Initializes the system */
@@ -138,6 +132,38 @@ class ViewBase : public Module{
 		/** \brief Contains all the fonts that are to be used */
 		std::map<std::string, OGLFT::Monochrome*> mFonts;
 
+		GLuint LoadTextureFromPNG (const std::string &filename);
+
+		/** \brief All loaded textures */
+		std::map<std::string, GLuint> mGLTextures;
+
+		OBJModelPtr LoadOBJModel (const std::string &model_filename);
+		void DrawOBJModel (OBJModelPtr mesh);
+		void DrawOBJModelSolid (OBJModelPtr mesh);
+		void DrawOBJModelShaded (OBJModelPtr mesh);
+		std::map<std::string, OBJModelPtr> mOBJModeles;
+
+		/** \brief Whether we can use shader programs */
+		bool mUseShaders;
+
+		GLuint CompileShader (GLenum type, const GLchar *source, GLint length);
+		GLuint LinkShaders (GLuint vertex_shader, GLuint fragment_shader);
+		GLuint LoadShaderProgram (const std::string &filename);
+
+		std::map<std::string, GLuint> mShaderPrograms;
+
+		GLuint mBlinnPhongShader;
+		GLuint mNormalMappingShader;
+
+		struct OpenGLVersionInfo {
+			int GLMajor;
+			int GLMinor;
+			int GLSLMajor;
+			int GLSLMinor;
+		} mGLVersionInfo;
+
+		GLuint mNullTexture;
+
 		friend class Engine;
 		friend class ControllerBase;
 };