Unity 编辑器开发实战【Editor Window】- Animation Clip Previewer 动画片段预览工具

通常我们把一个人物模型拖到Scene场景中后是这样的：

本文制作一个在Scene窗口预览动画片段的工具，如图所示： 

代码如下：

  

   

    

     

    
    

     

      using UnityEngine;
     
    
   

    

     

    
    

     

      using UnityEditor;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      namespace SK.Framework
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     
    /// <summary>
     
    
   

    

     

    
    

     
    /// 动画片段预览工具
     
    
   

    

     

    
    

     
    /// </summary>
     
    
   

    

     

    
    

     
    public class AnimationClipPreviewer : EditorWindow
     
    
   

    

     

    
    

     

          {
     
    
   

    

     

    
    

     
        //菜单
     
    
   

    

     

    
    

     

              [MenuItem("SKFramework/Tools/Animation Clip Previewer")]
     
    
   

    

     

    
    

     
        private static void Open()
     
    
   

    

     

    
    

     

              {
     
    
   

    

     

    
    

     
            //打开窗口
     
    
   

    

     

    
    

     

                  GetWindow<AnimationClipPreviewer>("Animation Clip Previewer").Show();
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        private int currentClipIndex;
     
    
   

    

     

    
    

     
        private float previewNormalizedTime;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        private void OnGUI()
     
    
   

    

     

    
    

     

              {
     
    
   

    

     

    
    

     
            //未选中任何物体 return
     
    
   

    

     

    
    

     
            if (Selection.activeGameObject == null) return;
     
    
   

    

     

    
    

     
            //选中的物体不包含Animator组件 return
     
    
   

    

     

    
    

     
            var animator = Selection.activeGameObject.GetComponent<Animator>();
     
    
   

    

     

    
    

     
            if (animator == null)
     
    
   

    

     

    
    

     

                  {
     
    
   

    

     

    
    

     

                      EditorGUILayout.HelpBox("Not found Animator component.", MessageType.Warning);
     
    
   

    

     

    
    

     
                return;
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     
            //动画未初始化 return
     
    
   

    

     

    
    

     
            if (!animator.isInitialized)
     
    
   

    

     

    
    

     

                  {
     
    
   

    

     

    
    

     

                      EditorGUILayout.HelpBox("Animator is not initialized.", MessageType.Warning);
     
    
   

    

     

    
    

     
                return;
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     
            //获取所有动画片段
     
    
   

    

     

    
    

     
            var clips = animator.runtimeAnimatorController.animationClips;
     
    
   

    

     

    
    

     
            if (clips.Length == 0)
     
    
   

    

     

    
    

     

                  {
     
    
   

    

     

    
    

     

                      EditorGUILayout.HelpBox("Animation clips count: 0", MessageType.Info);
     
    
   

    

     

    
    

     
                return;
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     
            //获取所有动画片段名称
     
    
   

    

     

    
    

     
            var names = new string[clips.Length];
     
    
   

    

     

    
    

     
            for (int i = 0; i < names.Length; i++)
     
    
   

    

     

    
    

     

                  {
     
    
   

    

     

    
    

     

                      names[i] = clips[i].name;
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     
            //通过名称选择动画片段
     
    
   

    

     

    
    

     

                  currentClipIndex = EditorGUILayout.Popup(currentClipIndex, names);
     
    
   

    

     

    
    

     
            //水平布局
     
    
   

    

     

    
    

     

                  GUILayout.BeginHorizontal();
     
    
   

    

     

    
    

     

                  {
     
    
   

    

     

    
    

     
                //预览的进度
     
    
   

    

     

    
    

     

                      previewNormalizedTime = EditorGUILayout.Slider(previewNormalizedTime, 0f, 1f);
     
    
   

    

     

    
    

     
                //当前动画片段总时长
     
    
   

    

     

    
    

     
                float length = clips[currentClipIndex].length;
     
    
   

    

     

    
    

     
                //当前预览的时间点
     
    
   

    

     

    
    

     
                float currentTime = length * previewNormalizedTime;
     
    
   

    

     

    
    

     
                //文本显示时长信息 00:00/00:00
     
    
   

    

     

    
    

     

                      GUILayout.Label($"{ToMSTimeFormat(currentTime)}/{ToMSTimeFormat(length)}");
     
    
   

    

     

    
    

     
                //动画采样 进行预览
     
    
   

    

     

    
    

     

                      clips[currentClipIndex].SampleAnimation(animator.gameObject, currentTime);
     
    
   

    

     

    
    

     

                  }
     
    
   

    

     

    
    

     

                  GUILayout.EndHorizontal();
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        //将秒数转换为00:00格式字符串
     
    
   

    

     

    
    

     
        private string ToMSTimeFormat(float length)
     
    
   

    

     

    
    

     

              {
     
    
   

    

     

    
    

     
            int v = (int)length;
     
    
   

    

     

    
    

     
            int minute = v / 60;
     
    
   

    

     

    
    

     
            int second = v % 60;
     
    
   

    

     

    
    

     
            return string.Format("{0:D2}:{1:D2}", minute, second);
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
        private void OnSelectionChange()
     
    
   

    

     

    
    

     

              {
     
    
   

    

     

    
    

     

                  Repaint();
     
    
   

    

     

    
    

     

              }
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     

      }
     
    
  
 

  
 
 

文章来源: coderz.blog.csdn.net，作者：CoderZ1010，版权归原作者所有，如需转载，请联系作者。

原文链接：coderz.blog.csdn.net/article/details/123210592