播放并等待Animation/Animator播放完毕

Question

在我的脚本中，我这样做了，当玩家在平台顶部时，将其向上移动。它运行良好。但现在我想让它在它起来后播放剪辑"Down“。

using UnityEngine;
using System.Collections;
using System.Reflection;

public class DetectPlayer : MonoBehaviour {

    GameObject target;

    public void ClearLog()
    {
        var assembly = Assembly.GetAssembly(typeof(UnityEditor.ActiveEditorTracker));
        var type = assembly.GetType("UnityEditorInternal.LogEntries");
        var method = type.GetMethod("Clear");
        method.Invoke(new object(), null);
    }

    void OnCollisionEnter(Collision collision)
    {
        if (collision.gameObject.name == "Platform")
        {
            Debug.Log("Touching Platform");
        }

    }

    void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.name == "OnTop Detector")
        {
            Debug.Log("On Top of Platform");
            GameObject findGo = GameObject.Find("ThirdPersonController");
            GameObject findGo1 = GameObject.Find("Elevator");
            findGo.transform.parent = findGo1.transform;
            target = GameObject.Find("Elevator");
            target.GetComponent<Animation>().Play("Up");
        }
    }
}

在这行之后

target.GetComponent<Animation>().Play("Up");

我想在它播放完后播放下面的内容：

target.GetComponent<Animation>().Play("Down");

Answer 1

虽然这两个答案都应该有效，但使用协程和IsPlaying函数来实现这一点的另一种方法。如果您还想在动画之后执行其他任务，则可以使用协程解决方案。

适用于 system的

旧的Unity动画回放系统。这应该在你的新项目中使用而不是，除非你还在使用旧的Unity版本。

IEnumerator playAndWaitForAnim(GameObject target, string clipName)
{
    Animation anim = target.GetComponent<Animation>();
    anim.Play(clipName);

    //Wait until Animation is done Playing
    while (anim.IsPlaying(clipName))
    {
        yield return null;
    }

    //Done playing. Do something below!
    Debug.Log("Done Playing");
}

适用于 system的

这是新的Unity动画回放系统。此应该在新项目中使用，而不是Animation接口。在性能方面，最好使用Animator.StringToHash并通过哈希数比较当前状态，而不是使用IsName函数来比较字符串，因为哈希值为faster。

假设您有名为Jump、Move和Look的州名称。你可以像下面这样得到他们的散列，然后使用下面的函数来播放和等待他们：

const string animBaseLayer = "Base Layer";
int jumpAnimHash = Animator.StringToHash(animBaseLayer + ".Jump");
int moveAnimHash = Animator.StringToHash(animBaseLayer + ".Move");
int lookAnimHash = Animator.StringToHash(animBaseLayer + ".Look");

public IEnumerator PlayAndWaitForAnim(Animator targetAnim, string stateName)
{
    //Get hash of animation
    int animHash = 0;
    if (stateName == "Jump")
        animHash = jumpAnimHash;
    else if (stateName == "Move")
        animHash = moveAnimHash;
    else if (stateName == "Look")
        animHash = lookAnimHash;

    //targetAnim.Play(stateName);
    targetAnim.CrossFadeInFixedTime(stateName, 0.6f);

    //Wait until we enter the current state
    while (targetAnim.GetCurrentAnimatorStateInfo(0).fullPathHash != animHash)
    {
        yield return null;
    }

    float counter = 0;
    float waitTime = targetAnim.GetCurrentAnimatorStateInfo(0).length;

    //Now, Wait until the current state is done playing
    while (counter < (waitTime))
    {
        counter += Time.deltaTime;
        yield return null;
    }

    //Done playing. Do something below!
    Debug.Log("Done Playing");

}

对于专门针对冲突回调函数(OnTriggerEnter)的特定问题的解决方案，有两种可能的方法：

1.Start在触发检测后播放动画的协程函数：

void OnTriggerEnter(Collider other)
{
    if (other.gameObject.name == "OnTop Detector")
    {
        Debug.Log("On Top of Platform");
        GameObject findGo = GameObject.Find("ThirdPersonController");
        GameObject findGo1 = GameObject.Find("Elevator");
        findGo.transform.parent = findGo1.transform;
        target = GameObject.Find("Elevator");
        StartCoroutine(playAnim(target));
    }
}

IEnumerator playAnim(GameObject target)
{
    Animation anim = target.GetComponent<Animation>();
    anim.Play("Up");

    //Wait until Up is done Playing the play down
    while (anim.IsPlaying("Up"))
    {
        yield return null;
    }

    //Now Play Down
    anim.Play("Down");
}

或

2.Make OnTriggerEnter函数a协程(IEnumerator)而不是void函数：

IEnumerator OnTriggerEnter(Collider other)
{
    if (other.gameObject.name == "OnTop Detector")
    {
        Debug.Log("On Top of Platform");
        GameObject findGo = GameObject.Find("ThirdPersonController");
        GameObject findGo1 = GameObject.Find("Elevator");
        findGo.transform.parent = findGo1.transform;
        target = GameObject.Find("Elevator");
        Animation anim = target.GetComponent<Animation>();
        anim.Play("Up");

        //Wait until Up is done Playing the play down
        while (anim.IsPlaying("Up"))
        {
            yield return null;
        }

        //Now Play Down
        anim.Play("Down");
    }
}

Answer 2

一种不需要手动检查的方法是使用排队

target.GetComponent<Animation>().PlayQueued("Down", QueueMode.CompleteOthers);

此代码将等待当前正在对象上播放的任何其他动画完成，然后再播放排队的动画。

The Unity API page regarding this topic