Unity复制资源目录并添加新的引用关系

news2025/1/13 7:38:50

有时候需要复制一个场景目录制作新的场景，打包场景也是独立资源，不希望资源复用。我们直接使用Ctrl+D复制资源，里面的预设，材质等都还是指向原有的，所以废话不多说，直接上代码。

操作窗口

首先是制作一个复制资源窗口
在这里插入图片描述

下面是脚本和菜单调用

在这里插入图片描述

using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;

public class ResCopyWin : EditorWindow
{
    public static ResCopyWin copyWin;
    //[MenuItem("JFrameWork/Resources/复制文件夹(复制依赖关系) %#D", false, 0)] Ctrl+Shift+D
    [MenuItem("JFrameWork/Resources/复制文件夹(复制依赖关系)", false, 0)]


    public static void CopyIt()
    {
        //否则就弹出面板设置

        copyWin = EditorWindow.GetWindow(typeof(ResCopyWin), true, "复制资源目录") as ResCopyWin;

        copyWin.ShowModalUtility();

    }


    string sourcePath = "Assets/";
    string toPath = "Assets/";


    private void OnGUI()
    {
        using (new GUILayout.VerticalScope())
        {
            EditorGUILayout.Space(10);
            EditorGUILayout.LabelField("原始路径：");
            sourcePath = EditorGUILayout.TextField(sourcePath, GUILayout.Width(180));


            EditorGUILayout.Space(10);
            EditorGUILayout.LabelField("目标路径：");
            toPath = EditorGUILayout.TextField(toPath, GUILayout.Width(180));



            EditorGUILayout.Space(10);
            if (GUILayout.Button("开始复制", GUILayout.Width(150), GUILayout.Height(20)))
            {
                OnOk();
            }
        }
    }

    void OnOk()
    {

        CopyFolderKeepAssetsUsingEditor.CopyDirectoryDeep(sourcePath, toPath);
    }


}

原始路径就是要复制的目录，目标路径就是复制出来的目录。

复制函数


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

public class CopyFolderKeepAssetsUsingEditor
{
    //[MenuItem("Tools/复制文件夹(复制依赖关系) %#D", false, 0)]

    //public static void CopyIt()
    //{
    //    CopyDirectoryDeep("Assets/scenes/1", "Assets/scenes/2");
    //}

    public static void CopyDirectoryDeep(string sourcePath, string destinationPath)
    {
        CopyDirectoryRecursively(sourcePath, destinationPath);

        List<string> metaFiles = GetFilesRecursively(destinationPath, (f) => f.EndsWith(".meta"));
        List<(string originalGuid, string newGuid)> guidTable = new List<(string originalGuid, string newGuid)>();

        foreach (string metaFile in metaFiles)
        {
            StreamReader file = new StreamReader(metaFile);
            file.ReadLine();
            string guidLine = file.ReadLine();
            file.Close();
            string originalGuid = guidLine.Substring(6, guidLine.Length - 6);
            string newGuid = GUID.Generate().ToString().Replace("-", "");
            guidTable.Add((originalGuid, newGuid));
        }

        List<string> allFiles = GetFilesRecursively(destinationPath);

        foreach (string fileToModify in allFiles)
        {
            string content = File.ReadAllText(fileToModify);

            foreach (var guidPair in guidTable)
            {
                content = content.Replace(guidPair.originalGuid, guidPair.newGuid);
            }

            File.WriteAllText(fileToModify, content);
        }

        AssetDatabase.Refresh();
    }

    private static void CopyDirectoryRecursively(string sourceDirName, string destDirName)
    {
        DirectoryInfo dir = new DirectoryInfo(sourceDirName);

        DirectoryInfo[] dirs = dir.GetDirectories();

        if (!Directory.Exists(destDirName))
        {
            Directory.CreateDirectory(destDirName);
        }

        FileInfo[] files = dir.GetFiles();
        foreach (FileInfo file in files)
        {
            string temppath = Path.Combine(destDirName, file.Name);
            file.CopyTo(temppath, false);
        }

        foreach (DirectoryInfo subdir in dirs)
        {
            string temppath = Path.Combine(destDirName, subdir.Name);
            CopyDirectoryRecursively(subdir.FullName, temppath);
        }
    }

    private static List<string> GetFilesRecursively(string path, Func<string, bool> criteria = null, List<string> files = null)
    {
        if (files == null)
        {
            files = new List<string>();
        }

        files.AddRange(Directory.GetFiles(path).Where(f => criteria == null || criteria(f)));

        foreach (string directory in Directory.GetDirectories(path))
        {
            GetFilesRecursively(directory, criteria, files);
        }

        return files;
    }
}