Unity Animator 实现动画慢动作

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Invincible_Samurai
{
    public class AnimationTimeScaleController_TimeLength : StateMachineBehaviour
    {
        public float slowStart = 0.1f;
        public float continuingTime = 0.2f;
        public float slowValue = 0.1f;
        float timeRecord;
        bool hasTriggerStart = false, hasTriggerEnd = false;

        public override void OnStateEnter(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
        {
            hasTriggerStart = false;
            hasTriggerEnd = false;            
        }

        public override void OnStateUpdate(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
        {
            if (!hasTriggerStart)
            {
                if (stateInfo.normalizedTime > slowStart)
                {
                    GameMgr.instance.SetToSlowTime(slowValue); //设置Time.timescale=slowValue                   
                    hasTriggerStart = true;
                    timeRecord = Time.unscaledTime;
                    //Debug.Log("减速开始" + stateInfo.normalizedTime);
                }
            }
            else if (!hasTriggerEnd)
            {
                if (Time.unscaledTime - timeRecord > continuingTime)
                {
                    GameMgr.instance.SetToNormalTime();设置Time.timescale=1                  
                    hasTriggerEnd = true;
                    //Debug.Log("减速结束" + stateInfo.normalizedTime);
                }
            }
        }

        public override void OnStateExit(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
        {
            hasTriggerStart = false;
            hasTriggerEnd = false;
            GameMgr.instance.SetToNormalTime();
        }
    }
}