@Override
	public void keyPressed(KeyEvent e) {
		int code = e.getKeyCode();
		switch (code) {
		case KeyEvent.VK_LEFT:
			if (!keys.contains("LEFT"))
				keys.add("LEFT");
			break;
		case KeyEvent.VK_RIGHT:
			if (!keys.contains("RIGHT"))
				keys.add("RIGHT");
			break;
		}
	}