using UnityEngine;

namespace Game
{
    public class ClipFollowTarget : TimelineClipBase
    {
        private FollowTargetClip _mRealAsset;
        public override void OnEnter()
        {
        }
        public override void OnStay()
        {
            _mRealAsset = Asset as FollowTargetClip;
            var param = _mRealAsset.template;
            var followTarget = 0;
            var target = Owner.Target();
            var targetEntity = Util.GetEntity(target);
            if (targetEntity == null)
            {
                //本身没有目标 尝试找所有者的目标
                var owner = Owner.Owner();
                var ownerEntity = Util.GetEntity(owner);
                if (ownerEntity == null)
                {
                    return;
                }
                followTarget = ownerEntity.Target();
            }
            else
            {
                followTarget = targetEntity.ID();
            }
            var followTargetEntity = Util.GetEntity(followTarget);
            if (followTargetEntity == null)
            {
                return;
            }
            var dir = followTargetEntity.Pos() - Owner.Pos();
            if (param.isGround)
            {
                dir = new Vector3(dir.x, 0, dir.z);
            }
            Util.EntityMove(Owner.ID(), dir);
            Owner.skill.CastDir = dir.normalized;
        }
        public override void OnLeave()
        {
        }
    }
}