public ScreenSelect() { RunningState.set_state(1); //Set to 1 for title do { switch (RunningState.get_state()) { case (1): //1 for title screen using (var game = new TitleScreen()) game.Run(); break; case (2): //2 for game screen using (var game = new GameScreen()) game.Run(); break; case (3): //3 for death screen using (var game = new DeathScreen()) game.Run(); break; } } while (RunningState.get_state() != 0); //Run the game until the running state is at 0, where the game will exit }