unity 用Dotween做出想视频播放器一样的漫游效果，可以前进后退控制速度和进度条效果_unity做摄像机自动漫游

 
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 成员属性&变量
 
        //主摄像机
        private Camera mainCamera;
 
        //DOTweenPath组件
        private DOTweenPath doTweenPath;
 
        //暂停和播放按钮
        public Button playOrPauseBut;
 
        //复制的节点数组
        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) };
 
        //进度条暂停播放判断
        private bool timeStop;
 
        //进度条
        public Slider slider;
 
        //速度
        private float speed = 1;
 
        //跳转阶段按钮
        public Button _TiaoZ0;
        public Button _TiaoZ1;
        public Button _TiaoZ2;
 
        //TweenerCore 插件中路径移动的变量
        TweenerCore<Vector3, Path, PathOptions> _TC_Path;
 
        //进行时间 总时间
        public Text proceed_Time, total_Ttime;
 
        //总的时间设置
        public float duration = 30;
 
        //执行播放的动画
        public Animator animationGo;
 
        //数组下标第几个执行方法
        private int subscript = 8;
 
        //移动中执行等待时间
        private float moveAwaitSpeed=2;
 
        #endregion
 
        #region MonoBehaviour方法
 
        void Start()
        {
 
            //获取到主摄像机
            mainCamera = CameraControllerManager.Instance.MainCamera;
 
            //跳转节点add方法
            _TiaoZ0.onClick.AddListener(delegate { TiaoZhuan(0); });
            _TiaoZ1.onClick.AddListener(delegate { TiaoZhuan(1); });
            _TiaoZ2.onClick.AddListener(delegate { TiaoZhuan(2); });
 
            //获取到主摄像机的DOTweenPath组件
            doTweenPath = mainCamera.GetComponent<DOTweenPath>();
 
            //按钮方法
            playOrPauseBut.onClick.AddListener(DoPlayOrPause_AutoMoveCamera);
 
            //变量赋值
            _TC_Path = transform.GetComponent<Rigidbody>().DOPath(waypoints, duration, PathType.CatmullRom, PathMode.Full3D, 10, null).SetAutoKill(true);
 
            //速度值
            _TC_Path.timeScale = 0.1f;
 
            //获取总执行的时间
            if (total_Ttime != null)
                total_Ttime.text = duration.ToString();
        }
 
        private void Update()
        {
            //进度条
            if (!timeStop)
            {
                //获取进度条0-1
                if (slider != null)
                    slider.value = _TC_Path.ElapsedDirectionalPercentage();
 
                //获取已播放多长时间
                if (proceed_Time != null)
                    proceed_Time.text = _TC_Path.Elapsed().ToString();
 
                //当数值大于0.96的时候直接等于
                if (_TC_Path.ElapsedDirectionalPercentage() >= 0.96)
                {
                    slider.value = 1;
                    //获取已播放多长时间
                    proceed_Time.text = duration.ToString();
                    timeStop = true;
                }
            }
 
            //根据节点下标执行
            _TC_Path.OnWaypointChange((index) =>
            {
                index++;
 
                //当下标到达之后执行方法
                if (index == subscript)
                    StartCoroutine(IntervalTime(moveAwaitSpeed));
            });
        }
 
        #endregion
 
        #region 公有方法
 
        /// <summary>
        /// 跳转节点方法 0是前面 1是中间 2是后面
        /// </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>
        /// 快进
        /// </summary>
        public void SpeedK()
        {
            _TC_Path.timeScale = 1f;
            speed = 10f;
        }
 
        /// <summary>
        /// 减速
        /// </summary>
        public void ExitK()
        {
            // speedkauijin--;
            _TC_Path.timeScale = 0.1f;
            speed = 1f;
        }
 
 
        /// <summary>
        /// 时间间隔停止等待
        /// </summary>
        /// <returns></returns>
        public IEnumerator IntervalTime(float moveAwait)
        {
            //停止等待几秒后执行
            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>
        /// 控制主摄像机的暂停
        /// </summary>
        public void DoPause_AutoMoveCamera()
        {
            if (doTweenPath != null)
            {
                doTweenPath.DOPause();
            }
        }
 
        /// <summary>
        /// 控制主摄像机的移动与暂停
        /// </summary>
        public void DoPlayOrPause_AutoMoveCamera()
        {
            if (!timeStop)
            {
                _TC_Path.Pause();
                timeStop = !timeStop;
            }
            else
            {
                _TC_Path.Play();
                timeStop = !timeStop;
            }
        }
 
        #endregion
    }
 
}