using UnityEngine;
using UnityEngine.Timeline;

namespace Game
{
    public class ClipThrowPosition : TimelineClipBase
    {
        private ThrowPositionClip _mRealAsset;
        private GameEntity target;

        public override void OnEnter()
        {
            _mRealAsset = Asset as ThrowPositionClip;
            target = Util.GetEntity(Owner.skill.ThrowTarget);
            SetPos(_mRealAsset.template.startPos);
        }

        public override void OnStay()
        {
            var rate = (Owner.timeline.TimePast - StartTime) / (EndTime - StartTime);
            var pos = Vector3.Lerp(_mRealAsset.template.startPos, _mRealAsset.template.endPos, (float)rate);
            SetPos(pos);
        }

        public override void OnLeave()
        {
            SetPos(_mRealAsset.template.endPos);
        }

        private void SetPos(Vector3 pos)
        {
            var relatedPos = new Vector3(pos.x * (Owner.move.IsRight ? 1 : -1), pos.y, pos.z);
            var targetPos = Owner.Pos() + relatedPos;
            target.SetPos(targetPos);
        }
    }
}