public MapToolkitPanel() {
		addMouseMotionListener(new MouseMotionAdapter() {
			@Override
			public void mouseMoved(MouseEvent e) {
				int mx = e.getX(), my = e.getY();
				//int x, y;
				x = (mx - 16) / 8;
				y = (my - 16) / 8;
				if (x>=0 && x<27 && y>=0 && y<27 ){
					System.out.println("x="+x+", y="+y);
					repaint();
				}
			}
		});

	}