在Unity中查找缺失的引用

這篇博客是查找unity中缺失引用的一個簡單簡短的解決方案。你可以從GitHub上獲取源碼。

缺失引用

一個丟失引用與沒有引用（在檢視表顯示“None”）是完全不同的概念。這些友各種原因造成，比如：把資源文件從Unity編輯器中移除，導致在.meta文件混亂，其中有個指向無效的連接。

主要問題是缺失引用在項目中會被隱藏在某處，只有等運行中找到時已經太晚了。幸運的是，我們編寫了編輯器腳本來補救...

 

解決方案：

以防止你也遇到這種問題，下面是查找缺失引用的所有代碼：

 

using System.Collections;
using System.Linq;
using UnityEditor;
using UnityEngine;
  
public class MissingReferencesFinder : MonoBehaviour 
{
    [MenuItem("Tools/Show Missing Object References in scene", false, 50)]
    public static void FindMissingReferencesInCurrentScene()
    {
        var objects = GetSceneObjects();
        FindMissingReferences(EditorApplication.currentScene, objects);
    }
  
    [MenuItem("Tools/Show Missing Object References in all scenes", false, 51)]
    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, 52)]
    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 != 0)
                        {
                            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