[COMMENTS] added some comments for all the scene files

the only thing i could not find was the on key method, the other params are empty(thus no comments)

src/scenes/in_Game_Scene.h

@@ -14,6 +14,11 @@
 
 namespace scene
 {
+	/**
+	* This enum is for managing the game scene state.  
+	* for example: when pressed on a specific button, the game will be in a paused state and nothing about the player or the speed of the game will be updated
+	* and the pause screen will show up.
+	**/
 	enum class Game_State
 	{
 		//IDLE,
@@ -21,30 +26,75 @@ namespace scene
 		PAUSED
 	};
 
+
 	class In_Game_Scene : public scene::Scene
 	{
 	private:
+		//return_value is an enum that is necessary for the scene switching. Whenever this changes, the scene will change to a different scene.
 		scene::Scenes return_value = scene::Scenes::INGAME;
+		//game_state is an enum that keeps track of the current game state. For example: is the game running(thus the user is playing the game) of is the game paused.
 		scene::Game_State game_state = scene::Game_State::RUNNING;
 
+		//entities_to_render is a list of entities, those entities will be rendered in the 3D environment.
 		std::vector<entities::Entity> entities_to_render;
+		//lights is a lost of light points in the game, for example the sun or it can be used to attach light effects to lamps.
 		std::vector<entities::Light> lights;
+		
 		models::RawModel raw_model;
 		models::ModelTexture texture;
+		//the shader that is used for rendering the models.
 		shaders::EntityShader* shader;
+		//the gui_shader is used of rendering the gui models (for example the pause buttons).
 		shaders::GuiShader* gui_shader;
+		//camera is the camera view of the game scene, this camera will be behind the main character.
 		entities::Camera *camera;
+		//guis is a list of all the gui components that needs to be load in the scene.
 		std::vector<gui::GuiTexture*> guis;
+		//pause_guis is a list of components that will be rendered when the game is paused.
 		std::vector<gui::GuiTexture*> pause_guis;
 
+		/**
+		 * @brief renders the objects/gui models
+		 * @param 
+		 * @return void
+		 */
 		void render_pause_menu();
+
 	
 	public:
 		In_Game_Scene();
 		~In_Game_Scene();
+
+		/**
+		 * @brief the method start is the start of the scene where a while loop runs, this runs the scene.
+		 * @param window the main window of the application
+		 * @return Scene value that indicates in which scene the application is
+		 */
 		Scenes start(GLFWwindow* window) override;
+
+		/**
+		 * @brief this method renders the models for the game scene
+		 * @param 
+		 * @return void
+		 */
 		void render() override;
+
+		/**
+		 * @brief this method updates the models/variables for the game scene
+		 * @param window the main window of the application
+		 * @return void
+		 */
 		void update(GLFWwindow* window) override;
+
+		/**
+		 * @brief this method updates the models/variables for the game scene
+		 * @param window the main window of the application
+		 * @param key this is the keycode on which key has been pressed 
+		 * @param scancode -
+		 * @param action-
+		 * @param mods -
+		 * @return void
+		 */
 		void onKey(GLFWwindow* window, int key, int scancode, int action, int mods) override;
 	};
 }