[Add] In-game menu for disabling sounds.

src/Main/Game.cpp

@@ -12,6 +12,10 @@
 #include "../System/Debug.h"
 #include "../Sprite/Sprite.h"
 #include "../Texture/Texture.h"
+#include "../UI/Button.h"
+#include "../UI/Menu.h"
+#include "../Sound/Music.h"
+#include "../Sound/SoundEffect.h"
 
 #include "../Level/Level.h"
 #include "Game.h"
@@ -29,6 +33,8 @@ Game::Game(void) {
   _titleScreen = new TitleScreen();
   _inTitleScreen = true;
   
+  _inGameMenuShown = false;
+
   _running = true;
 }
 
@@ -68,7 +74,7 @@ void Game::Shutdown(void) {
   delete _NPC;
   delete _player;
   delete _level;
-  delete _titleScreen;
+  delete _inGameMenu;
 }
 
 void Game::ProcessEvents(float dt) {
@@ -114,10 +120,30 @@ void Game::UpdateTitle(float dt) {
 }
 
 void Game::UpdateGame(float dt) {
+  if(KeyDown(SDLK_ESCAPE)) {
+    _inGameMenuShown = !_inGameMenuShown;
+  }
+  if(_inGameMenuShown) {
+    _inGameMenu->SetXY(windowWidth / 2, windowHeight / 2);
+    _inGameMenu->Update();
+
+    switch(_inGameMenu->GetTriggeredButton()) {
+    case 0:
+      SoundEffect::SetVolume(-1, 0);
+      Music::SetVolume(0);
+      break;
+
+    case 1:
+      SoundEffect::SetVolume(-1, 100);
+      Music::SetVolume(100);
+      break;
+    }
+  } else {
     _player->Update(dt);
     _NPC->Update(dt);
     _level->Update(dt);
   }
+}
 
 void Game::RenderTitle(void) {
   glMatrixMode(GL_MODELVIEW);
@@ -160,6 +186,15 @@ void Game::RenderGame(void) {
     _player->GetX() - 5,
     _player->GetY() - _testFont->GetLineSkip() - 2,
     "Miss D");
+
+  if(_inGameMenuShown) {
+    glLoadIdentity();
+
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_ALPHA_TEST);
+
+    _inGameMenu->Render();
+  }
 }
 
 void Game::NewGame(void) {
@@ -172,7 +207,21 @@ void Game::NewGame(void) {
   _testFont->Load("../Data/Font/Fairydust.ttf", 16);
   _testFont->SetColor(0.0f, 1.0f, 1.0f, 1.0f);
 
+  Button* muteSoundsButton = new Button();
+  muteSoundsButton->SetFont(_testFont);
+  muteSoundsButton->SetText("Mute Sounds");
+
+  Button* unmuteSoundsButton = new Button();
+  unmuteSoundsButton->SetFont(_testFont);
+  unmuteSoundsButton->SetText("Unmute Sounds");
+
+  _inGameMenu = new Menu();
+  _inGameMenu->AddButton(muteSoundsButton);
+  _inGameMenu->AddButton(unmuteSoundsButton);
+  _inGameMenu->AlignButtons(Menu::ALIGN_VERTICALLY);
+
   _inTitleScreen = false;
+  delete _titleScreen;
 }
 
 void Game::LoadGame(void) {
@@ -180,4 +229,5 @@ void Game::LoadGame(void) {
 
 void Game::Quit(void) {
   SetRunning(false);
+  delete _titleScreen;
 }

src/Main/Game.h

@@ -8,6 +8,7 @@ class Sprite;
 class Level;
 class Button;
 class TitleScreen;
+class Menu;
 
 class Game {
 public:
@@ -44,5 +45,8 @@ private:
   TitleScreen* _titleScreen;
   bool         _inTitleScreen;
 
+  Menu* _inGameMenu;
+  bool _inGameMenuShown;
+
   bool _running;
 };

src/Main/main.cpp

@@ -102,7 +102,7 @@ int main(int argc, char** argv) {
   while(game.IsRunning()) {
 
     while(SDL_PollEvent(&event)) {
-      if((event.type == SDL_QUIT) || KeyStillDown(SDLK_ESCAPE)) {
+      if((event.type == SDL_QUIT)) {
         game.SetRunning(false);
         break;
       }

src/Sound/Music.cpp

@@ -28,3 +28,7 @@ void Music::Play(Music* music, int loops) {
 void Music::Stop() {
   Mix_HaltMusic();
 }
+
+void Music::SetVolume(int volume) {
+  Mix_VolumeMusic(volume);
+}

src/Sound/Music.h

@@ -15,6 +15,7 @@ public:
 
   static void Play(Music* music, int loops);
   static void Stop();
+  static void SetVolume(int volume);
 
 private:
   struct _Mix_Music* _music;

src/Sound/SoundEffect.cpp

@@ -31,3 +31,7 @@ void SoundEffect::Stop(int channel) {
 bool SoundEffect::IsPlaying(int channel) {
   return Mix_Playing(channel) == 1;
 }
+
+void SoundEffect::SetVolume(int channel, int volume) {
+  Mix_Volume(channel, volume);
+}

src/Sound/SoundEffect.h

@@ -16,6 +16,7 @@ public:
   static void Play(SoundEffect* effect, int channel, int loops);
   static void Stop(int channel);
   static bool IsPlaying(int channel);
+  static void SetVolume(int channel, int volume);
 
 private:
   Mix_Chunk* _chunk;