构建AB包

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEditor;

using System.IO;

using System.Security.Cryptography;

using System.Text;

/// <summary>

/// AssetBundle编辑

/// </summary>

public class AssetBundleEditor

{

#region 自动做标记

//思路

//1.找到资源保存的文件夹

//2.遍历里面的每个场景文件夹

//3.遍历场景文件夹里的所有文件系统

//4.如果访问的是文件夹：再继续访问里面的所有文件系统，直到找到 文件 （递归）

//5.找到文件 就要修改他的 assetbundle labels

//6.用 AssetImporter 类 修改名称和后缀

//7.保存对应的 文件夹名 和 具体路径

[MenuItem("AssetBundle/Set AssetBundle Labels")]

public static void SetAssetBundleLabels()

{

//移除所有没有使用的标记

AssetDatabase.RemoveUnusedAssetBundleNames();

//1.找到资源保存的文件夹

string assetDirectory = Application.dataPath + "/Res";

//Debug.Log(assetDirectory);

DirectoryInfo directoryInfo = new DirectoryInfo(assetDirectory);

DirectoryInfo[] sceneDirectories = directoryInfo.GetDirectories();

//2.遍历里面的每个场景文件夹

foreach (DirectoryInfo tmpDirectoryInfo in sceneDirectories)

{

string sceneDirectory = assetDirectory + "/" + tmpDirectoryInfo.Name;

DirectoryInfo sceneDirectoryInfo = new DirectoryInfo(sceneDirectory);

//错误检测

if (sceneDirectoryInfo == null)

{

Debug.LogError(sceneDirectory + " 不存在!");

return;

}

else

{

Dictionary<string, string> namePahtDict = new Dictionary<string, string>();

//3.遍历场景文件夹里的所有文件系统

//sceneDirectory

//C:\Users\张晋枭\Documents\ABLesson\Assets\AssetBundles\Res\Scene1

//C:/Users/张晋枭/Documents/ABLesson/Assets/AssetBundles/Res/Scene1

int index = sceneDirectory.LastIndexOf("/");

string sceneName = sceneDirectory.Substring(index + 1);

onSceneFileSystemInfo(sceneDirectoryInfo, sceneName, namePahtDict);

onWriteConfig(sceneName, namePahtDict);

}

}

AssetDatabase.Refresh();

Debug.Log("设置成功");

}

/// <summary>

/// 记录配置文件

/// </summary>

private static void onWriteConfig(string sceneName, Dictionary<string, string> namePathDict)

{

string path = PathUtil.GetAssetBundleOutPath() + "/" + sceneName + "Record.txt";

// Debug.Log(path);

using (FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))

{

//写二进制

using (StreamWriter sw = new StreamWriter(fs))

{

sw.WriteLine(namePathDict.Count);

foreach (KeyValuePair<string, string> kv in namePathDict)

sw.WriteLine(kv.Key + " " + kv.Value);

}

}

}

/// <summary>

/// 遍历场景文件夹里的所有文件系统

/// </summary>

private static void onSceneFileSystemInfo(FileSystemInfo fileSystemInfo, string sceneName, Dictionary<string, string> namePahtDict)

{

if (!fileSystemInfo.Exists)

{

Debug.LogError(fileSystemInfo.FullName + " 不存在!");

return;

}

DirectoryInfo directoryInfo = fileSystemInfo as DirectoryInfo;

FileSystemInfo[] fileSystemInfos = directoryInfo.GetFileSystemInfos();

foreach (var tmpFileSystemInfo in fileSystemInfos)

{

FileInfo fileInfo = tmpFileSystemInfo as FileInfo;

if (fileInfo == null)

{

//代表强转失败，不是文件 就是文件夹

//如果访问的是文件夹：再继续访问里面的所有文件系统，直到找到 文件 （递归）

onSceneFileSystemInfo(tmpFileSystemInfo, sceneName, namePahtDict);

}

else

{

//就是文件

//5.找到文件 就要修改他的 assetbundle labels

setLabels(fileInfo, sceneName, namePahtDict);

}

}

}

/// <summary>

/// 修改资源文件的 assetbundle labels

/// </summary>

private static void setLabels(FileInfo fileInfo, string sceneName, Dictionary<string, string> namePahtDict)

{

//对unity自身生成的meta文件 无视它

if (fileInfo.Extension == ".meta")

return;

string bundleName = getBundleName(fileInfo, sceneName);

//C:\Users\张晋枭\Documents\ABLesson\Assets\Res\Scene1\Buildings\Folder\Building4.prefab

int index = fileInfo.FullName.IndexOf("Assets");

//Assets\Res\Scene1\Buildings\Folder\Building4.prefab

string assetPath = fileInfo.FullName.Substring(index);

AssetImporter assetImporter = AssetImporter.GetAtPath(assetPath);

//用 AssetImporter 类 修改名称和后缀

assetImporter.assetBundleName = bundleName.ToLower();

if (fileInfo.Extension == ".unity")

assetImporter.assetBundleVariant = "u3d";

else

assetImporter.assetBundleVariant = "assetbundle";

string folderName = "";

//添加到字典里

if (bundleName.Contains("/"))

folderName = bundleName.Split('/')[1];

else

folderName = bundleName;

string bundlePath = assetImporter.assetBundleName + "." + assetImporter.assetBundleVariant;

if (!namePahtDict.ContainsKey(folderName))

namePahtDict.Add(folderName, bundlePath);

}

/// <summary>

/// 获取包名

/// </summary>

private static string getBundleName(FileInfo fileInfo, string sceneName)

{

string windowsPath = fileInfo.FullName;//C:\Users\张晋枭\Documents\ABLesson\Assets\Res\Scene1\Buildings\Folder\Building4.prefab

//转换成unity可识别的路径

string unityPath = windowsPath.Replace(@"\", "/");

//C:/Users/张晋枭/Documents/ABLesson/Assets/Res/Scene1 /Buildings/Folder/Building4.prefab

//C: \Users\张晋枭\Documents\ABLesson\Assets\Res\Scene1\Scene1.unity

int index = unityPath.IndexOf(sceneName) + sceneName.Length;

string bundlePath = unityPath.Substring(index + 1);

if (bundlePath.Contains("/"))

{

//Buildings/Folder/Folder/Folder/Folder/Folder/Building4.prefab

string[] tmp = bundlePath.Split('/');

return sceneName + "/" + tmp[0];

}

else

{

//Scene1.unity

return sceneName;

}

}

#endregion

#region 打包

[MenuItem("AssetBundle/Build AssetBundles")]

static void BuildAllAssetBundles()

{

string outPath = PathUtil.GetAssetBundleOutPath();

BuildPipeline.BuildAssetBundles(outPath, 0, BuildTarget.StandaloneWindows64);

}

#endregion

#region 一键删除

[MenuItem("AssetBundle/Delete All")]

static void DeleteAssetBundle()

{

string outPath = PathUtil.GetAssetBundleOutPath();

Directory.Delete(outPath, true);

File.Delete(outPath + ".meta");

AssetDatabase.Refresh();

}

#endregion

[MenuItem("Tools/Create Files")]

static void CreateFiles()

{

//C:/Users/Ahpily/Desktop/AB/Assets/StreamingAssets/Windows

string outPath = PathUtil.GetAssetBundleOutPath();

//校验文件的路径

string filePath = outPath + "/files.txt";

if (File.Exists(filePath))

File.Delete(filePath);

//遍历这个文件夹下面的所有文件

List<string> fileList = new List<string>();

listFiles(new DirectoryInfo(outPath), ref fileList);

FileStream fs = new FileStream(filePath, FileMode.CreateNew);

StreamWriter sw = new StreamWriter(fs);

for (int i = 0; i < fileList.Count; i++)

{

string file = fileList[i];

string ext = Path.GetExtension(file);

if (ext.EndsWith(".meta"))

continue;

//生成这个文件对应的md5值

string md5 = getFileMd5(file);

//scene1.assetbundle

string value = file.Replace(outPath + "/", string.Empty);

//写入到文件

sw.WriteLine(value + "|" + md5);

}

sw.Close();

fs.Close();

AssetDatabase.Refresh();

}

/// <summary>

/// 遍历文件夹下的所有文件

/// </summary>

/// <param name="fileSystemInfo">文件夹的路径</param>

/// <param name="fileList"></param>

static void listFiles(FileSystemInfo fileSystemInfo, ref List<string> fileList)

{

DirectoryInfo directoryInfo = fileSystemInfo as DirectoryInfo;

//获取所有的文件系统

FileSystemInfo[] infos = directoryInfo.GetFileSystemInfos();

foreach (var info in infos)

{

FileInfo fileInfo = info as FileInfo;

//如果是文件 就成功了

if (fileInfo != null)

{

fileList.Add(fileInfo.FullName.Replace("\\", "/"));

}

//如果是文件夹就不成功 null

else

{

//递归

listFiles(info, ref fileList);

}

}

}

/// <summary>

/// 获取文件的md5值

/// </summary>

/// <param name="filePath"></param>

static string getFileMd5(string filePath)

{

FileStream fs = new FileStream(filePath, FileMode.Open);

MD5 md5 = new MD5CryptoServiceProvider();

byte[] result = md5.ComputeHash(fs);

fs.Close();

StringBuilder sb = new StringBuilder();

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

{

sb.Append(result[i].ToString("x2"));

}

return sb.ToString();

}

}