Unity（三十九）：非运行状态下脚本播放动画、Animator Override Controller、RuntimeAnimatorController

非运行状态下脚本播放动画

• 脚本

using UnityEngine;

namespace Example_01.Scripts
{
  [RequireComponent(typeof(Animator))]
  public class PlayAnim : MonoBehaviour
  {
  }
}

// Editor
using System.Linq;
using Example_01.Scripts;
using UnityEditor;
using UnityEditor.Animations;
using UnityEngine;

namespace Example_01.Editor
{
  [CustomEditor(typeof(PlayAnim))]
  public class PlayAnimEditor : UnityEditor.Editor
  {
    private AnimationClip[] _animationClips;
    private PlayAnim _script;

    private void OnEnable()
    {
      _script = target as PlayAnim;
      Animator animator = _script!.gameObject.GetComponent<Animator>();
      
      // 控制动画器的 AnimatorController 的运行时表示
      AnimatorController animatorController = (AnimatorController)animator.runtimeAnimatorController;
      // 获取动画列表
      _animationClips = animatorController.animationClips;
    }
    
    // 当前选择的动画下标
    private int _selectedIndex;
    
    // 当前滚动的位置值
    private float _sliderValue;

    public override void OnInspectorGUI()
    {
      base.OnInspectorGUI();

      // 启动代码块以检查GUI更改
      EditorGUI.BeginChangeCheck();

      // 获取动画名称列表
      string[] displayedOptions = _animationClips.Select(clip => clip.name).ToArray();
      _selectedIndex = EditorGUILayout.Popup("动画", _selectedIndex, displayedOptions);

      // 滑动条
      _sliderValue = EditorGUILayout.Slider("进度", _sliderValue, 0.0f, 1.0f);

      // 如果发生更改，结束代码块并更新标签
      if (EditorGUI.EndChangeCheck())
      {
        // 当前使用的动画
        AnimationClip animationClip = _animationClips[_selectedIndex];
        // 将总时间均匀分布在滚动条上
        float time = animationClip.length * _sliderValue;
        // 在给定时间针对任何动画属性对动画进行采样
        animationClip.SampleAnimation(_script.gameObject, time);
      }
    }
  }
}

Animator Override Controller

RuntimeAnimatorController

• 脚本

using UnityEngine;

namespace Example_01.Scripts
{
  public class SetAnim : MonoBehaviour
  {
    public Animator animator;
    
    private void OnGUI()
    {
      if (GUILayout.Button("读取控制器"))
      {
        RuntimeAnimatorController controller = Resources.Load<RuntimeAnimatorController>("Animator Controller");
        animator.runtimeAnimatorController = controller;
      }

      if (GUILayout.Button("删除控制器"))
      {
        animator.runtimeAnimatorController = null;
      }
    }
  }
}