unity 用Dotween做出想視頻播放器一樣的漫遊效果，可以前進後退控制速度和進度條效果

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using DG.Tweening;
using Tx3d.Framework;
using DG.Tweening.Plugins.Options;
using DG.Tweening.Core;
using DG.Tweening.Plugins.Core.PathCore;

namespace SimpleUIFrame
{
    public class PlaybackRoamingControl : MonoBehaviour
    {
        #region 成員屬性&變量

        //主攝像機
        private Camera mainCamera;

        //DOTweenPath組件
        private DOTweenPath doTweenPath;

        //暫停和播放按鈕
        public Button playOrPauseBut;

        //複製的節點數組
        Vector3[] waypoints = new[] { new Vector3(-3.8f, 3f, 213.1f), new Vector3(-11f, 3f, 185.01f), new Vector3(-20f, 3f, 153.01f), new Vector3(-78f, 3f, 141.01f), new Vector3(-81f, 3f, 82.60999f), new Vector3(-64.8f, 3f, 49.71f), new Vector3(-66f, 3f, -116.99f), new Vector3(-47f, 3f, -161.99f), new Vector3(49f, 3f, -161.99f), new Vector3(67f, 3f, -117.99f), new Vector3(64f, 3f, 49.00999f), new Vector3(78.8f, 3f, 85.60999f), new Vector3(80f, 3f, 147.01f), new Vector3(79f, 3f, 199.01f), new Vector3(62f, 3f, 211.01f) };

        //進度條暫停播放判斷
        private bool timeStop;

        //進度條
        public Slider slider;

        //速度
        private float speed = 1;

        //跳轉階段按鈕
        public Button _TiaoZ0;
        public Button _TiaoZ1;
        public Button _TiaoZ2;

        //TweenerCore 插件中路徑移動的變量
        TweenerCore<Vector3, Path, PathOptions> _TC_Path;

        //進行時間 總時間
        public Text proceed_Time, total_Ttime;

        //總的時間設置
        public float duration = 30;

        //執行播放的動畫
        public Animator animationGo;

        //數組下標第幾個執行方法
        private int subscript = 8;

        //移動中執行等待時間
        private float moveAwaitSpeed=2;

        #endregion

        #region MonoBehaviour方法

        void Start()
        {

            //獲取到主攝像機
            mainCamera = CameraControllerManager.Instance.MainCamera;

            //跳轉節點add方法
            _TiaoZ0.onClick.AddListener(delegate { TiaoZhuan(0); });
            _TiaoZ1.onClick.AddListener(delegate { TiaoZhuan(1); });
            _TiaoZ2.onClick.AddListener(delegate { TiaoZhuan(2); });

            //獲取到主攝像機的DOTweenPath組件
            doTweenPath = mainCamera.GetComponent<DOTweenPath>();

            //按鈕方法
            playOrPauseBut.onClick.AddListener(DoPlayOrPause_AutoMoveCamera);

            //變量賦值
            _TC_Path = transform.GetComponent<Rigidbody>().DOPath(waypoints, duration, PathType.CatmullRom, PathMode.Full3D, 10, null).SetAutoKill(true);

            //速度值
            _TC_Path.timeScale = 0.1f;

            //獲取總執行的時間
            if (total_Ttime != null)
                total_Ttime.text = duration.ToString();
        }

        private void Update()
        {
            //進度條
            if (!timeStop)
            {
                //獲取進度條0-1
                if (slider != null)
                    slider.value = _TC_Path.ElapsedDirectionalPercentage();

                //獲取已播放多長時間
                if (proceed_Time != null)
                    proceed_Time.text = _TC_Path.Elapsed().ToString();

                //當數值大於0.96的時候直接等於
                if (_TC_Path.ElapsedDirectionalPercentage() >= 0.96)
                {
                    slider.value = 1;
                    //獲取已播放多長時間
                    proceed_Time.text = duration.ToString();
                    timeStop = true;
                }
            }

            //根據節點下標執行
            _TC_Path.OnWaypointChange((index) =>
            {
                index++;

                //當下標到達之後執行方法
                if (index == subscript)
                    StartCoroutine(IntervalTime(moveAwaitSpeed));
            });
        }

        #endregion

        #region 公有方法

        /// <summary>
        /// 跳轉節點方法 0是前面 1是中間 2是後面
        /// </summary>
        /// <param name="nums"></param>
        public void TiaoZhuan(int nums)
        {
            if (!timeStop)
            {
                switch (nums)
                {
                    case 0:
                        _TC_Path.Goto(duration * 0.2f, true);
                        Debug.Log(duration * 0.2f + ":" + duration);
                        break;
                    case 1:
                        _TC_Path.Goto(duration * 0.5f, true);
                        Debug.Log(duration * 0.5f + ":" + duration);
                        break;
                    case 2:
                        _TC_Path.Goto(duration * 0.8f, true);
                        Debug.Log(duration * 0.8f + ":" + duration);
                        break;
                }
            }
        }

        /// <summary>
        /// 快進
        /// </summary>
        public void SpeedK()
        {
            _TC_Path.timeScale = 1f;
            speed = 10f;
        }

        /// <summary>
        /// 減速
        /// </summary>
        public void ExitK()
        {
            // speedkauijin--;
            _TC_Path.timeScale = 0.1f;
            speed = 1f;
        }


        /// <summary>
        /// 時間間隔停止等待
        /// </summary>
        /// <returns></returns>
        public IEnumerator IntervalTime(float moveAwait)
        {
            //停止等待幾秒後執行
            if (animationGo != null)
                animationGo.SetBool("isOn", true);
            float ol = _TC_Path.timeScale;
            _TC_Path.timeScale = 0.0001f;
            yield return new WaitForSeconds(moveAwait);
            _TC_Path.timeScale = ol;
            if (animationGo != null)
                animationGo.SetBool("isOn", false);
        }

        /// <summary>
        /// 控制主攝像機的暫停
        /// </summary>
        public void DoPause_AutoMoveCamera()
        {
            if (doTweenPath != null)
            {
                doTweenPath.DOPause();
            }
        }

        /// <summary>
        /// 控制主攝像機的移動與暫停
        /// </summary>
        public void DoPlayOrPause_AutoMoveCamera()
        {
            if (!timeStop)
            {
                _TC_Path.Pause();
                timeStop = !timeStop;
            }
            else
            {
                _TC_Path.Play();
                timeStop = !timeStop;
            }
        }

        #endregion
    }

}