@Override
    public void moveTo(int x, int y) {
        if (this.x != x || this.y != y) {
            int w = image.getWidth(null), h = image.getHeight(null);
            if (group != null) {
                group.damage(new BoundaryRectangle(this.x, this.y, w, h));
                group.damage(new BoundaryRectangle(x, y, w, h));
            }
            this.x = x;
            this.y = y;
            if (group != null) {
                group.resizeChild(this);
            }
        }
    }