动态添加Timeline轨道和片段

上图是利用代码制作的，下图是原来的样子：

如下代码是动态创建各种Timeline轨道的代码：(控制角色碰撞到Cube 触发以下的Timeline动画)

using Cinemachine;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.Playables;
using UnityEngine.Timeline;

public class DTTimeLine : MonoBehaviour
{
    //相机二跟随和看向的对象
    public GameObject enemy;
    //添加TimeLine导演组件
    PlayableDirector director;

    // Start is called before the first frame update
    //[System.Obsolete] 是一个特性(attribute)，用于标记方法、属性、类或字段已经过时，
    不推荐使用的注解。
    [System.Obsolete]
    void Start()
    {
        if (GetComponent<PlayableDirector>())
        {
            director = GetComponent<PlayableDirector>();
        }
        else
        {
            director = gameObject.AddComponent<PlayableDirector>();
        }
        //用于创建一个新的时间轴资源（TimelineAsset）实例的方法
        TimelineAsset asset = TimelineAsset.CreateInstance<TimelineAsset>();
        //将创建的时间轴资源（asset）赋值给 PlayableDirector 组件的 playableAsset 属性，
        //从而将时间轴资源与 PlayableDirector 关联起来。
        director.playableAsset = asset;
        //在游戏对象激活时不会自动播放与 PlayableDirector 关联的时间轴
        director.playOnAwake = false;





        //创建动画轨道
        AnimationTrack animationTrack = asset.CreateTrack<AnimationTrack>();
        //animationTrack.trackOffset 用于指定轨道偏移的方式
        //TrackOffset.ApplySceneOffsets 将轨道偏移设置为应用场景偏移
        animationTrack.trackOffset = TrackOffset.ApplySceneOffsets;
        //通过导演组件把动画轨道跟人物绑定
        director.SetGenericBinding(animationTrack, gameObject);
        //给轨道上添加内容
        TimelineClip timelineClip = animationTrack.CreateClip<AnimationPlayableAsset>();
        AnimationPlayableAsset apa = timelineClip.asset as AnimationPlayableAsset;
        apa.clip = Resources.Load<AnimationClip>("Day8/Love01");//填写动画路径
        apa.position = gameObject.transform.position;
        //设置动画开始播放时间
        timelineClip.start =0;
        //设置动画播放时长
        timelineClip.duration = 5;

        //给轨道上添加内容2
        TimelineClip timelineClip1 = animationTrack.CreateClip<AnimationPlayableAsset>();
        AnimationPlayableAsset apa1 = timelineClip1.asset as AnimationPlayableAsset;
        apa1.clip = Resources.Load<AnimationClip>("Day8/Catch03");//填写动画路径
        apa1.position = gameObject.transform.position;
        //设置动画开始播放时间
        timelineClip1.start = 5;
        //设置动画播放时长
        timelineClip1.duration = 10;





        //创建Control轨道
        ControlTrack control = asset.CreateTrack<ControlTrack>("control");
        //创建Control内容
        var timeclip = control.CreateClip<ControlPlayableAsset>();
        var clip = timeclip.asset as ControlPlayableAsset;
        // 创建一个用于容纳粒子系统的空GameObject
        GameObject particleObject = new GameObject("ParticleEffect");
        // 在空GameObject上添加粒子特效组件（例如ParticleSystem）
        ParticleSystem particleSystem = particleObject.AddComponent<ParticleSystem>();
        // 获取粒子系统的Renderer组件
        ParticleSystemRenderer particleRenderer = particleObject.GetComponent<ParticleSystemRenderer>();
        // 创建一个基本的材质球
        Material particleMaterial = new Material(Shader.Find("Standard"));
        //material 赋值
        particleRenderer.material = particleMaterial;
        //重复播放关闭
        particleObject.GetComponent<ParticleSystem>().loop = false;
        // 将粒子特效的Prefab或GameObject赋值给粒子特效组件
        particleSystem.gameObject.GetComponent<ParticleSystem>().Play(); // 播放粒子特效
        // 将粒子系统的GameObject赋值给Control Clip的sourceGameObject
        clip.sourceGameObject.exposedName = "ParticleObject";
        clip.sourceGameObject.defaultValue = particleObject;
        //设置开始时间
        timeclip.start = 0;
        //设置时长
        timeclip.duration = 15;





        //创建声音轨道
        AudioTrack audioTrack = asset.CreateTrack<AudioTrack>();
        //创建声音内容
        TimelineClip timelineClip2 = audioTrack.CreateClip<AudioPlayableAsset>();
        AudioPlayableAsset audio2 = timelineClip2.asset as AudioPlayableAsset;
        //为内容赋值
        audio2.clip = Resources.Load<AudioClip>("Day8/music");
        //设置播放开始时间和时长
        timelineClip2.start = 0;
        timelineClip2.duration = 10;





        //创建Signal事件轨道
        SignalTrack signalTrack = asset.CreateTrack<SignalTrack>();
        //添加组件
        SignalReceiver receiver = gameObject.AddComponent<SignalReceiver>();
        //把组件绑定到轨道上
        director.SetGenericBinding(signalTrack, gameObject);
        //创建事件
        SignalAsset signalAsset = new SignalAsset();
        signalAsset.name = "buff";
        //在轨道上指定时间添加事件(用于在 signalTrack 事件轨道上创建一个 SignalEmitter 标记，
          //并将其放置在时间轴上的时间点 5 处。)
        SignalEmitter signal = signalTrack.CreateMarker<SignalEmitter>(5);
        signal.asset = signalAsset;
        //创建委托绑定事件
        receiver.AddReaction(signal.asset, new UnityEvent());
        //给委托添加监听
        receiver.GetReaction(signalAsset).AddListener(() =>
        {
            print(111);
        });





        //创建虚拟相机轨道
        CinemachineTrack cinemachineTrack = asset.CreateTrack<CinemachineTrack>();
        //绑定控制的摄像机
        director.SetGenericBinding(cinemachineTrack, Camera.main.gameObject.GetComponent<CinemachineBrain>());
        //给轨道上添加内容（跟随主角）
        TimelineClip timelineClip3 = cinemachineTrack.CreateDefaultClip() as TimelineClip;
        CinemachineShot cinemachineShot = timelineClip3.asset as CinemachineShot;
        GameObject go1 = GameObject.Find("Cinemachine");
        //跟随看向
        CinemachineVirtualCamera cinemachineVirtualCamera = go1.GetComponent<CinemachineVirtualCamera>();
        cinemachineShot.VirtualCamera.defaultValue = cinemachineVirtualCamera;
        cinemachineVirtualCamera.LookAt = transform;
        cinemachineVirtualCamera.Follow = transform;
        timelineClip3.start = 0;
        timelineClip3.duration = 5;

        //给轨道上添加内容2（跟随玩家）
        TimelineClip timelineClip4 = cinemachineTrack.CreateDefaultClip() as TimelineClip;
        CinemachineShot cinemachineShot2 = timelineClip4.asset as CinemachineShot;
        GameObject go2 = GameObject.Find("VirtualCamera");
        //跟随看向
        CinemachineVirtualCamera cinemachineVirtualCamera2 = go2.GetComponent<CinemachineVirtualCamera>();
        cinemachineShot2.VirtualCamera.defaultValue = cinemachineVirtualCamera2;
        cinemachineVirtualCamera2.LookAt = enemy.transform;
        cinemachineVirtualCamera2.Follow = enemy.transform;
        timelineClip4.start = 5;
        timelineClip4.duration = 10;
    }

    // Update is called once per frame
    void Update()
    {
        //移动控制主角
        transform.Translate(Vector3.forward * 10 * Time.deltaTime * Input.GetAxis("Vertical"));
        transform.Rotate(Vector3.up * 100 * Time.deltaTime * Input.GetAxis("Horizontal"));
    }

    private void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.tag == "Cube")
        {
            director.Play();
        }
    }
}