public void mousePressed(MouseEvent e) 
	{
		if (SwingUtilities.isLeftMouseButton(e)) {
			rh.move(5, 1);
		} else if (SwingUtilities.isRightMouseButton(e)) {
			rh.move(5, -1);
		} else if (SwingUtilities.isMiddleMouseButton(e)) {
			isWheelPressed = true;
		}
	}