要创建自定义的可播放项,必须从 PlayableBehaviour 基类继承。
public class MyCustomPlayableBehaviour : PlayableBehaviour
{
// 自定义可播放项行为的实现
// 根据需要重载 PlayableBehaviour 方法
}
要将 PlayableBehaviour 用作自定义可播放项,还必须将其封装在 ScriptPlayable<> 对象内。如果不具备自定义可播放项的实例,可通过调用以下函数为对象创建 ScriptPlayable<>:
ScriptPlayable<MyCustomPlayableBehaviour>.Create(playableGraph);
如果已有自定义可播放项的实例,可通过调用以下函数用 ScriptPlayable<> 来包裹该实例:
MyCustomPlayableBehaviour myPlayable = new MyCustomPlayableBehaviour();
ScriptPlayable<MyCustomPlayableBehaviour>.Create(playableGraph, myPlayable);
此情况中将克隆该实例,然后将实例分配给 ScriptPlayable<>。实际上,此代码与先前代码执行的操作完全相同;不同之处在于 myPlayable
可能是将要在 Inspector 中配置的公有属性,然后可为脚本的每个实例设置行为。
您可以使用 ScriptPlayable<T> .GetBehaviour()
方法从 ScriptPlayable<> 获取 PlayableBehaviour 对象。
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