[ADDED] timer class

src/main.cpp

@@ -55,6 +55,11 @@ int main(void)
 
     glfwSetKeyCallback(window, [](GLFWwindow* window, int key, int scancode, int action, int mods)
         {
+            if (key == GLFW_KEY_ESCAPE)
+            {
+                glfwSetWindowShouldClose(window, true);
+            }
+    	
             current_scene->onKey(window, key, scancode, action, mods);
         });
 

src/toolbox/Timer.h

@@ -0,0 +1,46 @@
+#pragma once
+
+namespace toolbox
+{
+	/*
+	 * This class represents a timer which needs to be updated
+	 * every frame to work correctly.
+	 */
+	class Timer
+	{
+	private:
+		float current_time;
+		float final_time;
+		bool has_finished;
+
+	public:
+		/*
+		 * @brief: Constructor to make the timer
+		 *
+		 * @param final_time: The time which the timer needs to count to
+		 */
+		Timer(float final_time): current_time(0), final_time(final_time), has_finished(false) {}
+
+		/*
+		 * @brief: Updates the timer. Call this method once every iteration in the game loop
+		 *
+		 * @param delta: The deltatime of the game
+		 */
+		void UpdateTimer(const double delta)
+		{
+			current_time += delta;
+			
+			if (current_time >= final_time)
+			{
+				has_finished = true;
+			}
+		}
+
+		/*
+		 * @brief: Returns if the timer has finished
+		 *
+		 * @return: True if the timer has finished 
+		 */
+		bool HasFinished() const { return has_finished; }
+	};
+}