/**
* 查找指定位置的精灵对象
*
* @param x
* @param y
* @return
*/
public synchronized ISprite find(int x, int y) {
ISprite[] snapshot = sprites;
for (int i = snapshot.length - 1; i >= 0; i--) {
ISprite child = snapshot[i];
RectBox rect = child.getCollisionBox();
if (rect != null && rect.contains(x, y)) {
return child;
}
}
return null;
}
