public LTDescr setMoveLocalY()
{
this.type = TweenAction.MOVE_LOCAL_Y;
this.initInternal = ()=>{ this.fromInternal.x = trans.localPosition.y; };
this.easeInternal = ()=>{ trans.localPosition=new Vector3( trans.localPosition.x,easeMethod().x,trans.localPosition.z); };
return this;
}