void CreateScaffold()
{
if (scaffold != null)
{
return;
}
var mu = GetComponent <MapUnit>();
scaffoldUID = mu.U.UID + "_Scaffold";
scaffold = UC.CreateModel("Scaffold", scaffoldUID, false, false);
UC.UnhandleModel(scaffoldUID); // 脚手架模型是动画的一部分，交给动画自己管理
scaffold.transform.SetParent(transform, false);
scaffold.transform.localPosition = Vector3.zero;
scaffold.transform.localScale = Vector3.one;
scaffold.transform.localRotation = Quaternion.identity;
scaffold.gameObject.SetActive(true);
}