@Override
	public void keyReleased(KeyEvent e) {
		switch(e.getKeyCode()){
		case(KeyEvent.VK_W) : rocket.player.buttom[0] = false; break;
		case(KeyEvent.VK_A) : rocket.player.buttom[1] = false; break;
		case(KeyEvent.VK_S) : rocket.player.buttom[2] = false; break;
		case(KeyEvent.VK_D) : rocket.player.buttom[3] = false; break;
		}
	}