public void checkSystemInput() {
    	if (pause.isPressed()) {
            soundManager.play(selectSound);
    		Pause.pause = !Pause.pause;
    	}
    	if (exit.isPressed()) {
            soundManager.play(selectSound);
    		stop();
    	}
    	if (newGame.isPressed()) {
            soundManager.play(selectSound);
    		newGame();
    	}
    }