c# - animation.Play() 不起作用

Question

我很确定

animation.Play("DoorOpen");

会播放动画“DoorOpen”，但是当我试图将它放入我的代码中时，它只是给我一条错误消息:

The Animation attached to this GameObject (null if there is none attached).

using UnityEngine;
using System.Collections;

public class DoorPhysics : MonoBehaviour {

    int Open = 0;

    // Update is called once per frame
    void Update() {


        if (Open == 0) {

        if (Input.GetKeyDown("e")) {

                animation.Play("DoorOpen");

        }
    }

    }
}

Answer 1

您需要统一显示游戏对象的位置，它们彼此不认识，您必须始终使用:

GameObject.GetComponent<T>()
GetComponentInParent<T>()
GetComponentInChildren<T>()

最佳实践是在 Start() 获取对象引用您还应该将重要!!!动画组件附加到此脚本附加到的对象

 public class DoorPhysics : MonoBehaviour {

        public Animation animation;
        int Open = 0;



    void Start()
    {
        animation=GameObject.GetComponent<Animation>(); //if your have derived type change Animation to good class DoorAnimation for example
    }

    void Update()
    {
      if (Open == 0) {
            if (Input.GetKeyDown("e")) {
                     this.animation.Play("DoorOpen");
            }
        }
    }
  }

如果该代码不起作用，您需要向我展示您的 GameObject 层次结构

如果您只是用它开始您的旅程，请学习 MonoBehaviour call order和 life cycles of events