[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/startup_Scene.cpp

@@ -6,11 +6,17 @@
 
 namespace scene
 {
+	/**
+	 * deletes certain variables to prevent memory leaks
+	 */
 	Startup_Scene::~Startup_Scene()
 	{
 		std::cout << "startup scene gone!" << std::endl;
 	}
 
+	/**
+	 * starts the start-up scene, calls the render and update methods in a while loop
+	 */
 	scene::Scenes scene::Startup_Scene::start(GLFWwindow *window)
 	{
 		while (return_value == scene::Scenes::STARTUP)
@@ -25,16 +31,25 @@ namespace scene
 		return return_value;
 	}
 
+	/**
+	 * renders the models in the start-up scene
+	 */
 	void scene::Startup_Scene::render() 
 	{
 
 	}
 
+	/**
+	 * updates the variables for the start-up scene
+	 */
 	void scene::Startup_Scene::update(GLFWwindow* window)
 	{
 
 	}
 
+	/**
+	 * manages the key input in the start-up scene
+	 */
 	void scene::Startup_Scene::onKey(GLFWwindow* window, int key, int scancode, int action, int mods)
 	{
 		if (glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS)