[ADD] The scene switching works now, the only thing to do is controling the scenes with the keys!

src/scenes/scene.h

@@ -6,29 +6,26 @@
 
 namespace scene {
 
-	
-
-	class Scene
-	{
-	public:
-		virtual void start() = 0;
-		virtual void render() = 0;
-		virtual void update() = 0;
-		virtual void onKey(int key, int scancode, int action, int mods) {};
-
-	};
-
 	enum class Scenes
 	{
 		STARTUP,
 		INGAME,
 		GAMEOVER,
-		CALIBRATION
+		CALIBRATION,
+		STOP
 	};
 
-	extern std::map<Scenes, Scene*> scenes;
-	extern Scene* current_scene;
-	extern GLFWwindow* window;
+	class Scene
+	{
+	public:
+		virtual Scenes start(GLFWwindow* window) = 0;
+		virtual void render() = 0;
+		virtual void update(GLFWwindow* window) = 0;
+		virtual void onKey(GLFWwindow* window, int key, int scancode, int action, int mods) {};
+
+	};
+
+	
 }