private DepNode FocusNode(bool isFocus = true)
{
DepNode node = buildingController.FindRelationNode(focusNode);
if (isFocus && callback == null)
{
RoomFactory.Instance.FocusNode(node);
}
else
{
if (callback != null)
{
callback(node);//外部的回掉函数（一般是聚焦建筑）
}
}
return(node);
}