[ADD] the pause menu can be accessed with the 'P' key. the real button are not implemented yet.

src/scenes/in_Game_Scene.cpp

@@ -14,18 +14,11 @@
 
 namespace scene
 {
-	std::vector<entities::Entity> entities;
-	std::vector<entities::Light> lights;
-	models::RawModel raw_model;
-	models::ModelTexture texture;
-	shaders::EntityShader *shader;
-	shaders::GuiShader *gui_shader;
-	entities::Camera camera(glm::vec3(0, 0, 0), glm::vec3(0, 0, 0));
-	std::vector<gui::GuiTexture*> guis;
-
 	
 	In_Game_Scene::In_Game_Scene()
 	{
+		camera = new entities::Camera(glm::vec3(0, 0, 0), glm::vec3(0, 0, 0));
+
 		shader = new shaders::EntityShader;
 		shader->Init();	
 		render_engine::renderer::Init(*shader);
@@ -34,6 +27,14 @@ namespace scene
 		gui_shader->Init();
 	}
 
+	In_Game_Scene::~In_Game_Scene()
+	{
+		delete camera;
+		delete shader;
+		delete gui_shader;
+	}
+
+
 	scene::Scenes scene::In_Game_Scene::start(GLFWwindow* window)
 	{
 		raw_model = render_engine::LoadObjModel("res/House.obj");
@@ -45,7 +46,7 @@ namespace scene
 		int z = 0;
 		for (int i = 0; i < 5; ++i)
 		{
-			entities.push_back(entities::Entity(model, glm::vec3(0, -50, -50 - z), glm::vec3(0, 90, 0), 20));
+			entities_to_render.push_back(entities::Entity(model, glm::vec3(0, -50, -50 - z), glm::vec3(0, 90, 0), 20));
 			z += (raw_model.model_size.x * 20);
 		}
 
@@ -54,7 +55,7 @@ namespace scene
 		lights.push_back(entities::Light(glm::vec3(0, 0, -200), glm::vec3(0, 2, 0), glm::vec3(0.0001f, 0.0001f, 0.0001f)));
 
 		// GUI stuff
-		gui::Button button(render_engine::loader::LoadTexture("res/Mayo.png"), glm::vec2(0.5f, 0.0f), glm::vec2(0.25f, 0.25f));
+		gui::Button button(render_engine::loader::LoadTexture("res/Mayo.png"), glm::vec2(0.5f, 0.0f), glm::vec2(1, 1));
 		button.SetHoverTexture(render_engine::loader::LoadTexture("res/Texture.png"));
 		button.SetClickedTexture(render_engine::loader::LoadTexture("res/Mayo.png"));
 		button.SetOnClickAction([]()
@@ -64,11 +65,51 @@ namespace scene
 		guis.push_back(&button);
 	
 
+		//guis for the pause menu 
+		gui::GuiTexture background(render_engine::loader::LoadTexture("res/background_grey.png"), glm::vec2(0, 0), glm::vec2(1, 1));
+		pause_guis.push_back(&background);
+
+		gui::Button pause_button_resume(render_engine::loader::LoadTexture("res/Mayo.png"), glm::vec2(0, 0), glm::vec2(0.25f, 0.25f));
+		pause_button_resume.SetHoverTexture(render_engine::loader::LoadTexture("res/Texture.png"));
+		pause_button_resume.SetClickedTexture(render_engine::loader::LoadTexture("res/Mayo.png"));
+		pause_button_resume.SetOnClickAction([]()
+			{
+				std::cout << "I got clicked on the resume button!" << std::endl;
+			});
+		pause_guis.push_back(&pause_button_resume);
+
+		gui::Button pause_button_quit(render_engine::loader::LoadTexture("res/Mayo.png"), glm::vec2(0.3f, 0.0f), glm::vec2(0.25f, 0.25f));
+		pause_button_quit.SetHoverTexture(render_engine::loader::LoadTexture("res/Texture.png"));
+		pause_button_quit.SetClickedTexture(render_engine::loader::LoadTexture("res/Mayo.png"));
+		pause_button_quit.SetOnClickAction([]()
+			{
+				std::cout << "I got clicked on the quit button!" << std::endl;
+			});
+		pause_guis.push_back(&pause_button_quit);
+
 		while (return_value == scene::Scenes::INGAME)
 		{
-			update(window);
-			button.Update(window);
-			render();
+			switch (game_state) 
+			{
+			/*case scene::Game_State::IDLE:
+				break;*/
+
+			case scene::Game_State::PAUSED:
+				render();
+				render_pause_menu();
+				break;
+
+			case scene::Game_State::RUNNING:
+				update(window);
+				button.Update(window);
+				render();
+				break;
+
+			default:
+				std::cout << "Game state unknown" << std::endl;
+				break;
+			}
+			
 
 			glfwSwapBuffers(window);
 			glfwPollEvents();
@@ -87,16 +128,16 @@ namespace scene
 		shader->Start();
 		shader->LoadSkyColor(render_engine::renderer::SKY_COLOR);
 		shader->LoadLights(lights);
-		shader->LoadViewMatrix(camera);
+		shader->LoadViewMatrix(*camera);
 
 		// Renders each entity in the entities list
-		for (entities::Entity& entity : entities)
+		for (entities::Entity& entity : entities_to_render)
 		{
 			render_engine::renderer::Render(entity, *shader);
 		}
 
 		// Render GUI items
-		render_engine::renderer::Render(guis, *gui_shader);
+		//render_engine::renderer::Render(guis, *gui_shader);
 
 		// Stop rendering the entities
 		shader->Stop();
@@ -104,7 +145,7 @@ namespace scene
 
 	void scene::In_Game_Scene::update(GLFWwindow* window)
 	{
-		camera.Move(window);
+		camera->Move(window);
 	}
 
 	void scene::In_Game_Scene::onKey(GLFWwindow* window, int key, int scancode, int action, int mods)
@@ -113,6 +154,19 @@ namespace scene
 		{
 			return_value = scene::Scenes::STOP;
 		}
+		if (glfwGetKey(window, GLFW_KEY_P) == GLFW_PRESS)
+		{
+			game_state = scene::Game_State::PAUSED;
+		}
+		if (glfwGetKey(window, GLFW_KEY_O) == GLFW_PRESS)
+		{
+			game_state = scene::Game_State::RUNNING;
+		}
 	}
 
+
+	void In_Game_Scene::render_pause_menu()
+	{
+		render_engine::renderer::Render(pause_guis, *gui_shader);
+	}
 }