Major refactoring for game menu

src/MenuManager.h

@@ -7,21 +7,21 @@
 namespace ZL {
 
 	extern const char* CONST_ZIP_FILE;
-	extern bool g_exitBgAnimating;
-	extern bool firePressed;
+	//extern bool g_exitBgAnimating;
 
 	class MenuManager
 	{
 	protected:
 		Renderer& renderer;
-		bool uiGameOverShown = false;
-
 		std::shared_ptr<UiNode> uiSavedRoot;
 		std::shared_ptr<UiNode> gameOverSavedRoot;
 		std::shared_ptr<UiNode> settingsSavedRoot;
 		std::shared_ptr<UiNode> multiplayerSavedRoot;
 
 	public:
+		bool uiGameOverShown = false;
+		bool g_exitBgAnimating = false;
+
 		UiManager uiManager;
 
 		MenuManager(Renderer& iRenderer);
@@ -32,6 +32,10 @@ namespace ZL {
 
 		std::function<void()> onRestartPressed;
 		std::function<void(float)> onVelocityChanged;
+		std::function<void()> onFirePressed;
+
+		std::function<void()> onSingleplayerPressed;
+		std::function<void()> onMultiplayerPressed;
 
 	};
 };