[Unity基础]Timeline的简单使用

参考链接：

https://www.jianshu.com/p/56b56d80fbc8

https://www.jianshu.com/p/20801229717a

Timeline需要unity2017以上

1.点击菜单栏Window/Sequencing/Timeline打开窗口

创建一个空物体，点击“Create”，这时会创建一个.playable的资源，同时会为该物体挂上“PlayableDirector”和“Animator”组件，其中PlayableDirector是用来播放.playable文件的

2. 将1个模型预制体拖到上面的Timeline根物体下，然后将模型预制体中带有“Animator”组件的子物体拖到Track区域上，然后选择Animation轨道

 

3.将该模型的动画拖上去，运行游戏，这时Timeline的动画会覆盖模型动画控制器的动画，即播放的是Timeline的动画

4.自定义扩展

PlayableBehaviour

using UnityEngine;
using UnityEngine.Playables;

public class LightPlayableBehaviour : PlayableBehaviour
{
    public Light light = null;
    public Color color = Color.white;
    public float intensity = 1f;

    public override void OnGraphStart(Playable playable)
    {
        base.OnGraphStart(playable);
        Debug.Log("OnGraphStart");
    }

    public override void OnGraphStop(Playable playable)
    {
        base.OnGraphStop(playable);
        Debug.Log("OnGraphStop");
    }

    public override void OnBehaviourPlay(Playable playable, FrameData info)
    {
        base.OnBehaviourPlay(playable, info);
        Debug.Log("OnBehaviourPlay");
        light.color = color;
        light.intensity = intensity;
    }

    public override void OnBehaviourPause(Playable playable, FrameData info)
    {
        base.OnBehaviourPause(playable, info);
        Debug.Log("OnBehaviourPause");
        light.color = Color.white;
        light.intensity = 1;
    }

    public override void ProcessFrame(Playable playable, FrameData info, object playerData)
    {
        base.ProcessFrame(playable, info, playerData);
        Debug.Log("ProcessFrame");
    }
}

PlayableAsset

using UnityEngine;
using UnityEngine.Playables;

public class LightPlayableAsset : PlayableAsset
{
    public ExposedReference<Light> light;
    public Color color = Color.white;
    public float intensity = 1.0f;

    public override Playable CreatePlayable(PlayableGraph graph, GameObject owner)
    {
        var scriptPlayable = ScriptPlayable<LightPlayableBehaviour>.Create(graph);
        var behaviour = scriptPlayable.GetBehaviour();
        behaviour.light = light.Resolve(graph.GetResolver());
        behaviour.color = color;
        behaviour.intensity = intensity;
        return scriptPlayable;
    }
}

如下，这样就能创建自定义的PlayableAsset

选中该PlayableAsset，PlayableAsset脚本的作用是将面板的值赋给PlayableBehaviour；而PlayableBehaviour则是对这些值进行操作

 

执行顺序：

OnGraphStart->OnBehaviourPause->OnBehaviourPlay->ProcessFrame->OnBehaviourPause->OnGraphStop