sound volumes are now read from and saved to config.rc + bugfix

- fixed calling of IMGUIClear() when the view state changed (was previously
	called only when the game state changed)

.hgignore

@@ -10,6 +10,7 @@ Makefile
 start
 runtests
 run_asteroids
+config.rc
 
 ./doc/html/*
 

asteroids/AsteroidsEvents.h

@@ -10,7 +10,7 @@ BEGIN_ENUM(Event)
 	DECL_ENUM_ELEMENT(EventAccelerateStart),
 	DECL_ENUM_ELEMENT(EventAccelerateStop),
 	DECL_ENUM_ELEMENT(EventLevelComplete),
-	DECL_ENUM_ELEMENT(EventChangeGameState),
+	DECL_ENUM_ELEMENT(EventChangeViewState),
 	DECL_ENUM_ELEMENT(EventGameOver),
 	DECL_ENUM_ELEMENT(EventShipExplode),
 	DECL_ENUM_ELEMENT(EventPlayerDied),

asteroids/Controller.cc

@@ -17,13 +17,13 @@ int Controller::OnInit (int argc, char *argv[]) {
 	mBindings[SDLK_F8] = "toggleconsole";
 	mBindings[SDLK_F9] = "set playerspeed 5.0";
 
-	Engine::RegisterListener (this, EventChangeGameState);
+	Engine::RegisterListener (this, EventChangeViewState);
 
 	return 0;
 }
 
 bool Controller::OnReceiveEvent (const Engine::EventBasePtr &event) {
-	if (event->mEventType == EventChangeGameState) {
+	if (event->mEventType == EventChangeViewState) {
 		IMGUIClear();
 	}
 	return false;

asteroids/Model.cc

@@ -374,11 +374,6 @@ void Model::ProceedToNextLevel () {
 
 void Model::SetGameState (const unsigned int &state) {
 	mLastGameState = mGameState;
-
-	Engine::EventBasePtr changegamestate_event (new Engine::EventBase());
-	changegamestate_event->mEventType = EventChangeGameState;
-	QueueEvent (changegamestate_event);
-
 	mGameState = state;
 }
 

asteroids/View.cc

@@ -663,22 +663,19 @@ void View::DrawUiHighscore() {
 void View::DrawUiOptions() {
 	DrawPageTitle ("Options");
 	SelectFont ("console.ttf size=23");
-	
-	// Enter your name
-	std::string player_name = GetModel()->GetPlayerName();
 
-	Engine::GUI::Label (1, "Effects Volume: ", screen_right * 0.5 - 150, 240);
+	Engine::GUI::Label (10, "Effects Volume: ", screen_right * 0.5 - 150, 240);
 
 	float effects_volume = Engine::GetEffectsVolume();
-	if (Engine::GUI::VerticalSlider (2, screen_right * 0.5 - 100, 250, 250, 16, 0., 1., effects_volume)) {
+	if (Engine::GUI::VerticalSlider (1, screen_right * 0.5 - 100, 250, 250, 16, 0., 1., effects_volume)) {
 		Engine::LogDebug ("Setting effects volume to: %f", effects_volume);
 		Engine::SetEffectsVolume(effects_volume);
 	}
 
-	Engine::GUI::Label (3, "Music Volume: ", screen_right * 0.5 - 150, 300);
+	Engine::GUI::Label (11, "Music Volume: ", screen_right * 0.5 - 150, 300);
 
 	float music_volume = Engine::GetMusicVolume();
-	if (Engine::GUI::VerticalSlider (4, screen_right * 0.5 - 100, 310, 250, 16, 0., 1., music_volume)) {
+	if (Engine::GUI::VerticalSlider (2, screen_right * 0.5 - 100, 310, 250, 16, 0., 1., music_volume)) {
 		Engine::LogDebug ("Setting music volume to: %f", music_volume);
 		Engine::SetMusicVolume(music_volume);
 	}

asteroids/View.h

@@ -75,6 +75,11 @@ class View : public Engine::ViewBase {
 		void PushViewState (const ViewState state) {
 			Engine::LogDebug ("Pushing ViewState %s", GetStringViewState(state));
 			mViewStateStack.push(state);
+
+			// Fire the view state change event to properly clear the IMGUI state
+			Engine::EventBasePtr changeviewstate_event (new Engine::EventBase());
+			changeviewstate_event->mEventType = EventChangeViewState;
+			QueueEvent (changeviewstate_event);
 		}
 		/** \brief Returns the current ViewState */
 		ViewState GetViewState () {
@@ -92,12 +97,22 @@ class View : public Engine::ViewBase {
 				current_name = GetStringViewState(mViewStateStack.top());
 
 			Engine::LogDebug("Popped ViewState: %s current %s remaining: %u", popped_name.c_str(), current_name.c_str(), mViewStateStack.size());
+
+			// Fire the view state change event to properly clear the IMGUI state
+			Engine::EventBasePtr changeviewstate_event (new Engine::EventBase());
+			changeviewstate_event->mEventType = EventChangeViewState;
+			QueueEvent (changeviewstate_event);
 		}
 		/** \brief Removes all elements of the ViewState stack */
 		void ResetViewState() {
 			Engine::LogDebug ("Resetting ViewState stack");
 			while (mViewStateStack.size())
 				mViewStateStack.pop();
+
+			// Fire the view state change event to properly clear the IMGUI state
+			Engine::EventBasePtr changeviewstate_event (new Engine::EventBase());
+			changeviewstate_event->mEventType = EventChangeViewState;
+			QueueEvent (changeviewstate_event);
 		}
 
 		// \todo [high] add Resource Manager!

asteroids/main.cc

@@ -44,14 +44,18 @@ int main (int argc, char* argv[]) {
 	engine.GetView()->SetGridSize (8,8);
 	dynamic_cast<asteroids::Physics*>(engine.GetPhysics())->SetWorldSize (28, 20);
 
+	// run the default commands and load the configuration
 	Engine::RunCommand ("exec asteroids.rc");
-
+	Engine::RunCommand ("exec config.rc");
-	Engine::LogMessage("Warning: muting sound!");
-	Engine::SetEffectsVolume(0.);
-	Engine::SetMusicVolume(0.);
 
 	engine.MainLoop ();
 
+	// save the configuration
+	std::ofstream config_file ("config.rc");
+	config_file << "set effects_volume " << Engine::GetEffectsVolume() << std::endl;
+	config_file << "set music_volume " << Engine::GetMusicVolume() << std::endl;
+	config_file.close();
+
 	SDL_WM_SetIcon(NULL,NULL);
 	SDL_FreeSurface (image);
 

engine/VariablesCommands.cc

@@ -1,4 +1,5 @@
 #include "Variables.h"
+#include "SoundBaseGlobal.h"
 
 namespace Engine {
 
@@ -8,6 +9,19 @@ bool Cmd_Set (const std::vector<std::string> args) {
 		return false;
 	}
 
+	// special variable sound_volume
+	if (args[0] == "effects_volume") {
+		SetEffectsVolume(atof(args[1].c_str()));
+
+		return true;
+	}
+	// special variable music_volume
+	if (args[0] == "music_volume") {
+		SetMusicVolume(atof(args[1].c_str()));
+
+		return true;
+	}
+
 	Variable *test = GetVariable (args[0]);
 	if (test) {
 		test->SetStringValue (args[1]);

engine/doc/Mainpage.h

@@ -72,7 +72,6 @@
  * todos within the code have a look at the \ref todo.
  *
  * \todo [high] Create a simple racing or asteroids game
- * \todo [high] Enable saving of music and effects volume
  * \todo [med] Use shared_ptr instead of raw pointers for the Entities
  * \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?)
@@ -88,9 +87,10 @@
  * Engine::Module::Init()
  *
  * Done:
+ * \todo [high] (28-11-2010) Enable saving of music and effects volume
  * \todo [high] (28-11-2010) Allow transitions when player dies
-* \todo [high] (11-09-2010) Since introduction of the IMGUI pressing 'space' in the menu crashes the game
+ * \todo [high] (11-09-2010) Since introduction of the IMGUI pressing 'space' in the menu crashes the game
-* - [high] In Physics remove dependancy on the Model to pass on collision
+ * - [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)