Unity GUID替换Editor

using UnityEngine;  
using System.Collections;  
using UnityEditor;  
using System.Linq;  
using System.IO;  
using System.Text.RegularExpressions;  
using System.Collections.Generic;  
/// <summary>  
/// 解决项目中 一样的资源（名字或者路径不同）存在两份的问题  （多人做UI出现的问题， 或者美术没有管理好资源）  
/// 如果是要替换资源的话， 那就直接替换好了  
///   
/// 以上可以这么操作的基础是，你的Unity项目内的.prefab .Unity 都可以直接用文本开看到数据，而不是乱码（二进制）。这一步很关键，怎么设置呢？  
/// 打开项目Unity编辑器：Edit —-> Project Settings —-> Editor 这样就会调到你的Inspector面板的Editor Settings   
/// 设置 Asset Serialization 的Mode类型为：Force Text(默认是Mixed); 这样你就能看到你的prefab文件引用了哪些贴图，字体，prefab 等资源了  
/// </summary>  
public class GUIDRefReplace : EditorWindow  
｛  
    private static GUIDRefReplace _window;  
    private Object _sourceOld;  
    private Object _sourceNew;  
    private string _oldGuid;  
    private string _newGuid;  
    private bool isContainScene = true;  
    private bool isContainPrefab = true;  
    private bool isContainMat = true;  
    private bool isContainAsset = false;  
    private List<string> withoutExtensions = new List<string>();  
    [MenuItem("SGD/GUIDRefReplaceWin")]   // 菜单开启并点击的   处理  
    public static void GUIDRefReplaceWin()  
    ｛  
        // true 表示不能停靠的  
        _window = (GUIDRefReplace)EditorWindow.GetWindow(typeof(GUIDRefReplace), true, "引用替换 (●'◡'●)");  
        _window.Show();  
    ｝  
    void OnGUI()  
    ｛  
        // 要被替换的（需要移除的）  
        GUILayout.Space(20);  
        _sourceOld = EditorGUILayout.ObjectField("旧的资源", _sourceOld, typeof(Object), true);  
        _sourceNew = EditorGUILayout.ObjectField("新的资源", _sourceNew, typeof(Object), true);  
        // 在那些类型中查找（.unity\.prefab\.mat）  
        GUILayout.Space(20);  
        GUILayout.Label("要在哪些类型中查找替换：");  
        EditorGUILayout.BeginHorizontal();  
        isContainScene = GUILayout.Toggle(isContainScene, ".unity");  
        isContainPrefab = GUILayout.Toggle(isContainPrefab, ".prefab");  
        isContainMat = GUILayout.Toggle(isContainMat, ".mat");  
        isContainAsset = GUILayout.Toggle(isContainAsset, ".asset");  
        EditorGUILayout.EndHorizontal();  
        GUILayout.Space(20);  
        if (GUILayout.Button("开始替换!"))  
        ｛  
            if (EditorSettings.serializationMode != SerializationMode.ForceText)  
            ｛  
                Debug.LogError("需要设置序列化模式为 SerializationMode.ForceText");  
                ShowNotification(new GUIContent("需要设置序列化模式为 SerializationMode.ForceText"));  
            ｝  
            else if (_sourceNew == null || _sourceOld == null)  
            ｛  
                Debug.LogError("不能为空！");  
                ShowNotification(new GUIContent("不能为空！"));  
            ｝  
            else if (_sourceNew.GetType() != _sourceOld.GetType())  
            ｛  
                Debug.LogError("两种资源类型不一致！");  
                ShowNotification(new GUIContent("两种资源类型不一致！"));  
            ｝  
            else if (!isContainScene && !isContainPrefab && !isContainMat && !isContainAsset)  
            ｛  
                Debug.LogError("要选择一种 查找替换的类型");  
                ShowNotification(new GUIContent("要选择一种 查找替换的类型"));  
            ｝  
            else   // 执行替换逻辑  
            ｛  
                StartReplace();  
            ｝  
        ｝  
    ｝  
    private void StartReplace()  
    ｛  
        var path = AssetDatabase.GetAssetPath(_sourceOld);  
        _oldGuid = AssetDatabase.AssetPathToGUID(path);  
        _newGuid = AssetDatabase.AssetPathToGUID(AssetDatabase.GetAssetPath(_sourceNew));  
        Debug.Log("oldGUID = "   _oldGuid   "  "   "_newGuid = "   _newGuid);  
        withoutExtensions = new List<string>();  
        if (isContainScene)  
        ｛  
            withoutExtensions.Add(".unity");  
        ｝  
        if (isContainPrefab)  
        ｛  
            withoutExtensions.Add(".prefab");  
        ｝  
        if (isContainMat)  
        ｛  
            withoutExtensions.Add(".mat");  
        ｝  
        if (isContainAsset)  
        ｛  
            withoutExtensions.Add(".asset");  
        ｝  
        Find();  
    ｝  
    //void RefreshMat(string findType)  
    //｛  
    //    var guids = AssetDatabase.FindAssets("t:"   findType);  // Material      // 这一句牛逼呀， 直接按照类型获取   file:///D:/Program Files/Unity 5.2.0b4/Unity/Editor/Data/Documentation/en/ScriptReference/AssetDatabase.FindAssets.html  
    //    foreach (var guid in guids)  
    //    ｛  
    //    ｝  
    //｝  
    /// <summary>  
    /// 查找  并   替换   
    /// </summary>  
    private void Find()  
    ｛  
        if (withoutExtensions == null || withoutExtensions.Count == 0)  
        ｛  
            withoutExtensions = new List<string>() ｛ ".prefab", ".unity", ".mat", ".asset" ｝;  
        ｝  
        string[] files = Directory.GetFiles(Application.dataPath, "*.*", SearchOption.AllDirectories)  
        .Where(s => withoutExtensions.Contains(Path.GetExtension(s).ToLower())).ToArray();  
        int startIndex = 0;  
        if (files == null || files.Length == 0)  
        ｛  
            Debug.Log("没有找到 筛选的引用");  
            return;  
        ｝  
        EditorApplication.update = delegate ()  
        ｛  
            string file = files[startIndex];  
            bool isCancel = EditorUtility.DisplayCancelableProgressBar("匹配资源中", file, (float)startIndex / (float)files.Length);  
            var content = File.ReadAllText(file);  
            if (Regex.IsMatch(content, _oldGuid))  
            ｛  
                Debug.Log(file, AssetDatabase.LoadAssetAtPath<Object>(GetRelativeAssetsPath(file)));  
                content = content.Replace(_oldGuid, _newGuid);  
                File.WriteAllText(file, content);  
            ｝  
            else  
            ｛  
                Debug.Log(file);  
            ｝  
            startIndex ;  
            if (isCancel || startIndex >= files.Length)  
            ｛  
                EditorUtility.ClearProgressBar();  
                EditorApplication.update = null;  
                startIndex = 0;  
                AssetDatabase.Refresh();  
                Debug.Log("替换结束");  
            ｝  
        ｝;  
    ｝  
    private string GetRelativeAssetsPath(string path)  
    ｛  
        return "Assets"   Path.GetFullPath(path).Replace(Path.GetFullPath(Application.dataPath), "").Replace('\\', '/');  
    ｝  
｝