在Unity中查找缺失的引用

这篇博客是查找unity中缺失引用的一个简单简短的解决方案。你可以从GitHub上获取源码。

缺失引用

一个丢失引用与没有引用（在检视表显示“None”）是完全不同的概念。这些友各种原因造成，比如：把资源文件从Unity编辑器中移除，导致在.meta文件混乱，其中有个指向无效的连接。

主要问题是缺失引用在项目中会被隐藏在某处，只有等运行中找到时已经太晚了。幸运的是，我们编写了编辑器脚本来补救...

 

解决方案：

以防止你也遇到这种问题，下面是查找缺失引用的所有代码：

 

 using System.Collections;
 using System.Linq;
 using UnityEditor;
 using UnityEngine;

 public class MissingReferencesFinder : MonoBehaviour
 {
     [MenuItem("Tools/Show Missing Object References in scene", false, )]
     public static void FindMissingReferencesInCurrentScene()
     {
         var objects = GetSceneObjects();
         FindMissingReferences(EditorApplication.currentScene, objects);
     }

     [MenuItem("Tools/Show Missing Object References in all scenes", false, )]
     public static void MissingSpritesInAllScenes()
     {
         foreach (var scene in EditorBuildSettings.scenes.Where(s => s.enabled))
         {
             EditorApplication.OpenScene(scene.path);
             FindMissingReferences(scene.path, GetSceneObjects());
         }
     }

     [MenuItem("Tools/Show Missing Object References in assets", false, )]
     public static void MissingSpritesInAssets()
     {
         var allAssets = AssetDatabase.GetAllAssetPaths();
         var objs = allAssets.Select(a => AssetDatabase.LoadAssetAtPath(a, typeof(GameObject)) as GameObject).Where(a => a != null).ToArray();

         FindMissingReferences("Project", objs);
     }

     private static void FindMissingReferences(string context, GameObject[] objects)
     {
         foreach (var go in objects)
         {
             var components = go.GetComponents();

             foreach (var c in components)
             {
                 if (!c)
                 {
                     Debug.LogError("Missing Component in GO: " + FullPath(go), go);
                     continue;
                 }

                 SerializedObject so = new SerializedObject(c);
                 var sp = so.GetIterator();

                 while (sp.NextVisible(true))
                 {
                     if (sp.propertyType == SerializedPropertyType.ObjectReference)
                     {
                         if (sp.objectReferenceValue == null
                             && sp.objectReferenceInstanceIDValue != )
                         {
                             ShowError(context, go, c.GetType().Name, ObjectNames.NicifyVariableName(sp.name));
                         }
                     }
                 }
             }
         }
     }

     private static GameObject[] GetSceneObjects()
     {
         return Resources.FindObjectsOfTypeAll()
             .Where(go => string.IsNullOrEmpty(AssetDatabase.GetAssetPath(go))
                    && go.hideFlags == HideFlags.None).ToArray();
     }

     private const string err = "Missing Ref in: [{3}]{0}. Component: {1}, Property: {2}";

     private static void ShowError (string context, GameObject go, string c, string property)
     {
         Debug.LogError(string.Format(err, FullPath(go), c, property, context), go);
     }

     private static string FullPath(GameObject go)
     {
         return go.transform.parent == null
             ? go.name
                 : FullPath(go.transform.parent.gameObject) + "/" + go.name;
     }
 }

原文地址： http://www.tallior.com/find-missing-references-unity/

作者： Lior Tal