增加微信小程序

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSClearAllBundleFilesOperation.cs

@@ -0,0 +1,57 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using YooAsset;
+using WeChatWASM;
+
+internal class WXFSClearAllBundleFilesOperation : FSClearCacheFilesOperation
+{
+    private enum ESteps
+    {
+        None,
+        ClearAllCacheFiles,
+        WaitResult,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private ESteps _steps = ESteps.None;
+
+    internal WXFSClearAllBundleFilesOperation(WechatFileSystem fileSystem)
+    {
+        _fileSystem = fileSystem;
+    }
+    internal override void InternalStart()
+    {
+        _steps = ESteps.ClearAllCacheFiles;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.ClearAllCacheFiles)
+        {
+            _steps = ESteps.WaitResult;
+
+            WX.CleanAllFileCache((bool isOk) =>
+            {
+                if (isOk)
+                {
+                    YooLogger.Log("微信缓存清理成功！");
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    YooLogger.Log("微信缓存清理失败！");
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = "微信缓存清理失败！";
+                }
+            });
+        }
+    }
+}
+#endif

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSClearAllBundleFilesOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: eef9c14836ca93346ba50fd29cbf9fcc
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs

@@ -0,0 +1,111 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using YooAsset;
+using WeChatWASM;
+
+internal class WXFSClearUnusedBundleFilesAsync : FSClearCacheFilesOperation
+{
+    private enum ESteps
+    {
+        None,
+        GetUnusedCacheFiles,
+        WaitingSearch,
+        ClearUnusedCacheFiles,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly PackageManifest _manifest;
+    private List<string> _unusedCacheFiles = new List<string>(1000);
+    private int _unusedFileTotalCount = 0;
+    private ESteps _steps = ESteps.None;
+
+    internal WXFSClearUnusedBundleFilesAsync(WechatFileSystem fileSystem, PackageManifest manifest)
+    {
+        _fileSystem = fileSystem;
+        _manifest = manifest;
+    }
+    internal override void InternalStart()
+    {
+        _steps = ESteps.GetUnusedCacheFiles;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.GetUnusedCacheFiles)
+        {
+            _steps = ESteps.WaitingSearch;
+
+            // 说明：__GAME_FILE_CACHE/yoo/ 目录下包含所有的资源文件和清单文件
+            var fileSystemMgr = _fileSystem.GetFileSystemMgr();
+            var statOption = new WXStatOption();
+            statOption.path = _fileSystem.FileRoot;
+            statOption.recursive = true;
+            statOption.success = (WXStatResponse response) =>
+            {
+                foreach (var fileStat in response.stats)
+                {
+                    // 如果是目录文件
+                    string fileExtension = Path.GetExtension(fileStat.path);
+                    if (string.IsNullOrEmpty(fileExtension))
+                        continue;
+
+                    // 如果是资源清单
+                    //TODO 默认的清单文件格式
+                    if (fileExtension == ".bytes" || fileExtension == ".hash")
+                        continue;
+
+                    // 注意：适配不同的文件命名方式！
+                    string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(fileStat.path);
+                    string bundleGUID = fileNameWithoutExtension.Split('_').Last();
+                    if (_manifest.TryGetPackageBundleByBundleGUID(bundleGUID, out PackageBundle value) == false)
+                    {
+                        string filePath = _fileSystem.FileRoot + fileStat.path;
+                        if (_unusedCacheFiles.Contains(filePath) == false)
+                            _unusedCacheFiles.Add(filePath);
+                    }
+                }
+
+                _steps = ESteps.ClearUnusedCacheFiles;
+                _unusedFileTotalCount = _unusedCacheFiles.Count;
+                YooLogger.Log($"Found unused cache files count : {_unusedFileTotalCount}");
+            };
+            statOption.fail = (WXStatResponse response) =>
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = response.errMsg;
+            };
+            fileSystemMgr.Stat(statOption);
+        }
+
+        if (_steps == ESteps.ClearUnusedCacheFiles)
+        {
+            for (int i = _unusedCacheFiles.Count - 1; i >= 0; i--)
+            {
+                string filePath = _unusedCacheFiles[i];
+                _unusedCacheFiles.RemoveAt(i);
+                WX.RemoveFile(filePath, null);
+
+                if (OperationSystem.IsBusy)
+                    break;
+            }
+
+            if (_unusedFileTotalCount == 0)
+                Progress = 1.0f;
+            else
+                Progress = 1.0f - (_unusedCacheFiles.Count / _unusedFileTotalCount);
+
+            if (_unusedCacheFiles.Count == 0)
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Succeed;
+            }
+        }
+    }
+}
+#endif

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 4c0927ce5425fe443a7c88f4fc46a7c9
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSDownloadFileOperation.cs

@@ -0,0 +1,115 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using UnityEngine;
+using YooAsset;
+
+internal class WXFSDownloadFileOperation : FSDownloadFileOperation
+{
+    protected enum ESteps
+    {
+        None,
+        CreateRequest,
+        CheckRequest,
+        TryAgain,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly DownloadFileOptions _options;
+    private UnityWebCacheRequestOperation _webCacheRequestOp;
+
+    private int _requestCount = 0;
+    private float _tryAgainTimer = 0;
+    private int _failedTryAgain;
+    private ESteps _steps = ESteps.None;
+
+    internal WXFSDownloadFileOperation(WechatFileSystem fileSystem, PackageBundle bundle, DownloadFileOptions options) : base(bundle)
+    {
+        _fileSystem = fileSystem;
+        _options = options;
+        _failedTryAgain = options.FailedTryAgain;
+    }
+    internal override void InternalStart()
+    {
+        _steps = ESteps.CreateRequest;
+    }
+    internal override void InternalUpdate()
+    {
+        // 创建下载器
+        if (_steps == ESteps.CreateRequest)
+        {
+            string url = GetRequestURL();
+            _webCacheRequestOp = new UnityWebCacheRequestOperation(url);
+            _webCacheRequestOp.SetRequestHeader("wechatminigame-preload", "1");
+            _webCacheRequestOp.StartOperation();
+            AddChildOperation(_webCacheRequestOp);
+            _steps = ESteps.CheckRequest;
+        }
+
+        // 检测下载结果
+        if (_steps == ESteps.CheckRequest)
+        {
+            _webCacheRequestOp.UpdateOperation();
+            Progress = _webCacheRequestOp.Progress;
+            DownloadProgress = _webCacheRequestOp.DownloadProgress;
+            DownloadedBytes = _webCacheRequestOp.DownloadedBytes;
+            if (_webCacheRequestOp.IsDone == false)
+                return;
+
+            if (_webCacheRequestOp.Status == EOperationStatus.Succeed)
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Succeed;
+
+                //TODO 解决微信小游戏插件问题
+                // Issue : https://github.com/wechat-miniprogram/minigame-unity-webgl-transform/issues/108#
+                DownloadProgress = 1f;
+                DownloadedBytes = Bundle.FileSize;
+                Progress = 1f;
+            }
+            else
+            {
+                if (_failedTryAgain > 0)
+                {
+                    _steps = ESteps.TryAgain;
+                    YooLogger.Warning($"Failed download : {_webCacheRequestOp.URL} Try again !");
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _webCacheRequestOp.Error;
+                    YooLogger.Error(Error);
+                }
+            }
+        }
+
+        // 重新尝试下载
+        if (_steps == ESteps.TryAgain)
+        {
+            _tryAgainTimer += Time.unscaledDeltaTime;
+            if (_tryAgainTimer > 1f)
+            {
+                _tryAgainTimer = 0f;
+                _failedTryAgain--;
+                Progress = 0f;
+                DownloadProgress = 0f;
+                DownloadedBytes = 0;
+                _steps = ESteps.CreateRequest;
+            }
+        }
+    }
+
+    /// <summary>
+    /// 获取网络请求地址
+    /// </summary>
+    private string GetRequestURL()
+    {
+        // 轮流返回请求地址
+        _requestCount++;
+        if (_requestCount % 2 == 0)
+            return _options.FallbackURL;
+        else
+            return _options.MainURL;
+    }
+}
+#endif

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSDownloadFileOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 3b68ed83f5520b04d82c82da8f8f13a2
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSInitializeOperation.cs

@@ -0,0 +1,20 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using YooAsset;
+
+internal partial class WXFSInitializeOperation : FSInitializeFileSystemOperation
+{
+    private readonly WechatFileSystem _fileSystem;
+
+    public WXFSInitializeOperation(WechatFileSystem fileSystem)
+    {
+        _fileSystem = fileSystem;
+    }
+    internal override void InternalStart()
+    {
+        Status = EOperationStatus.Succeed;
+    }
+    internal override void InternalUpdate()
+    {
+    }
+}
+#endif

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSInitializeOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: bfbe92cc9e2c1664980c6663aac606a8
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSLoadBundleOperation.cs

@@ -0,0 +1,88 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using YooAsset;
+
+internal class WXFSLoadBundleOperation : FSLoadBundleOperation
+{
+    private enum ESteps
+    {
+        None,
+        LoadAssetBundle,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly PackageBundle _bundle;
+    private LoadWebAssetBundleOperation _loadWebAssetBundleOp;
+    private ESteps _steps = ESteps.None;
+
+    internal WXFSLoadBundleOperation(WechatFileSystem fileSystem, PackageBundle bundle)
+    {
+        _fileSystem = fileSystem;
+        _bundle = bundle;
+    }
+    internal override void InternalStart()
+    {
+        _steps = ESteps.LoadAssetBundle;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.LoadAssetBundle)
+        {
+            if (_loadWebAssetBundleOp == null)
+            {
+                string mainURL = _fileSystem.RemoteServices.GetRemoteMainURL(_bundle.FileName);
+                string fallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(_bundle.FileName);
+                DownloadFileOptions options = new DownloadFileOptions(int.MaxValue);
+                options.SetURL(mainURL, fallbackURL);
+
+                if (_bundle.Encrypted)
+                {
+                    _loadWebAssetBundleOp = new LoadWebEncryptAssetBundleOperation(_bundle, options, _fileSystem.DecryptionServices);
+                    _loadWebAssetBundleOp.StartOperation();
+                    AddChildOperation(_loadWebAssetBundleOp);
+                }
+                else
+                {
+                    _loadWebAssetBundleOp = new LoadWechatAssetBundleOperation(_bundle, options);
+                    _loadWebAssetBundleOp.StartOperation();
+                    AddChildOperation(_loadWebAssetBundleOp);
+                }
+            }
+
+            _loadWebAssetBundleOp.UpdateOperation();
+            Progress = _loadWebAssetBundleOp.Progress;
+            DownloadProgress = _loadWebAssetBundleOp.DownloadProgress;
+            DownloadedBytes = _loadWebAssetBundleOp.DownloadedBytes;
+            if (_loadWebAssetBundleOp.IsDone == false)
+                return;
+
+            if (_loadWebAssetBundleOp.Status == EOperationStatus.Succeed)
+            {
+                var assetBundle = _loadWebAssetBundleOp.Result;
+                _steps = ESteps.Done;
+                Result = new WXAssetBundleResult(_fileSystem, _bundle, assetBundle);
+                Status = EOperationStatus.Succeed;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _loadWebAssetBundleOp.Error;
+            }
+        }
+    }
+    internal override void InternalWaitForAsyncComplete()
+    {
+        if (_steps != ESteps.Done)
+        {
+            _steps = ESteps.Done;
+            Status = EOperationStatus.Failed;
+            Error = "WebGL platform not support sync load method !";
+            UnityEngine.Debug.LogError(Error);
+        }
+    }
+}
+#endif

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSLoadBundleOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: f0591f444ec236f499e608d1efc09b4c
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSLoadPackageManifestOperation.cs

@@ -0,0 +1,95 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using YooAsset;
+
+internal class WXFSLoadPackageManifestOperation : FSLoadPackageManifestOperation
+{
+    private enum ESteps
+    {
+        None,
+        RequestPackageHash,
+        LoadPackageManifest,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly string _packageVersion;
+    private readonly int _timeout;
+    private RequestWebPackageHashOperation _requestPackageHashOp;
+    private LoadWebPackageManifestOperation _loadPackageManifestOp;
+    private ESteps _steps = ESteps.None;
+
+
+    public WXFSLoadPackageManifestOperation(WechatFileSystem fileSystem, string packageVersion, int timeout)
+    {
+        _fileSystem = fileSystem;
+        _packageVersion = packageVersion;
+        _timeout = timeout;
+    }
+    internal override void InternalStart()
+    {
+        _steps = ESteps.RequestPackageHash;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.RequestPackageHash)
+        {
+            if (_requestPackageHashOp == null)
+            {
+                _requestPackageHashOp = new RequestWebPackageHashOperation(_fileSystem.RemoteServices, _fileSystem.PackageName, _packageVersion, _timeout);
+                _requestPackageHashOp.StartOperation();
+                AddChildOperation(_requestPackageHashOp);
+            }
+
+            _requestPackageHashOp.UpdateOperation();
+            if (_requestPackageHashOp.IsDone == false)
+                return;
+
+            if (_requestPackageHashOp.Status == EOperationStatus.Succeed)
+            {
+                _steps = ESteps.LoadPackageManifest;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _requestPackageHashOp.Error;
+            }
+        }
+
+        if (_steps == ESteps.LoadPackageManifest)
+        {
+            if (_loadPackageManifestOp == null)
+            {
+                string packageHash = _requestPackageHashOp.PackageHash;
+                string packageName = _fileSystem.PackageName;
+                var manifestServices = _fileSystem.ManifestServices;
+                var remoteServices = _fileSystem.RemoteServices;
+                _loadPackageManifestOp = new LoadWebPackageManifestOperation(manifestServices, remoteServices, packageName, _packageVersion, packageHash, _timeout);
+                _loadPackageManifestOp.StartOperation();
+                AddChildOperation(_loadPackageManifestOp);
+            }
+
+            _loadPackageManifestOp.UpdateOperation();
+            Progress = _loadPackageManifestOp.Progress;
+            if (_loadPackageManifestOp.IsDone == false)
+                return;
+
+            if (_loadPackageManifestOp.Status == EOperationStatus.Succeed)
+            {
+                _steps = ESteps.Done;
+                Manifest = _loadPackageManifestOp.Manifest;
+                Status = EOperationStatus.Succeed;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _loadPackageManifestOp.Error;
+            }
+        }
+    }
+}
+#endif

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSLoadPackageManifestOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e7ba664d33c1ec54d99e426c360b4e2d
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSRequestPackageVersionOperation.cs

@@ -0,0 +1,64 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using YooAsset;
+
+internal class WXFSRequestPackageVersionOperation : FSRequestPackageVersionOperation
+{
+    private enum ESteps
+    {
+        None,
+        RequestPackageVersion,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly bool _appendTimeTicks;
+    private readonly int _timeout;
+    private RequestWebPackageVersionOperation _requestWebPackageVersionOp;
+    private ESteps _steps = ESteps.None;
+
+
+    internal WXFSRequestPackageVersionOperation(WechatFileSystem fileSystem, bool appendTimeTicks, int timeout)
+    {
+        _fileSystem = fileSystem;
+        _appendTimeTicks = appendTimeTicks;
+        _timeout = timeout;
+    }
+    internal override void InternalStart()
+    {
+        _steps = ESteps.RequestPackageVersion;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.RequestPackageVersion)
+        {
+            if (_requestWebPackageVersionOp == null)
+            {
+                _requestWebPackageVersionOp = new RequestWebPackageVersionOperation(_fileSystem.RemoteServices, _fileSystem.PackageName, _appendTimeTicks, _timeout);
+                _requestWebPackageVersionOp.StartOperation();
+                AddChildOperation(_requestWebPackageVersionOp);
+            }
+
+            _requestWebPackageVersionOp.UpdateOperation();
+            Progress = _requestWebPackageVersionOp.Progress;
+            if (_requestWebPackageVersionOp.IsDone == false)
+                return;
+
+            if (_requestWebPackageVersionOp.Status == EOperationStatus.Succeed)
+            {
+                _steps = ESteps.Done;
+                PackageVersion = _requestWebPackageVersionOp.PackageVersion;
+                Status = EOperationStatus.Succeed;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _requestWebPackageVersionOp.Error;
+            }
+        }
+    }
+}
+#endif

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSRequestPackageVersionOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 5180674a9ce18da4b90dba6b36c1efe4
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvoTools/WechatFileSystem/Operation/internal.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 5744a1caf86e5e444945d8f83bfe65d0
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvoTools/WechatFileSystem/Operation/internal/LoadWechatAssetBundleOperation.cs

@@ -0,0 +1,115 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal class LoadWechatAssetBundleOperation : LoadWebAssetBundleOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            CheckRequest,
+            TryAgain,
+            Done,
+        }
+
+        private readonly PackageBundle _bundle;
+        private readonly DownloadFileOptions _options;
+        private UnityWechatAssetBundleRequestOperation _unityAssetBundleRequestOp;
+
+        private int _requestCount = 0;
+        private float _tryAgainTimer = 0;
+        private int _failedTryAgain;
+        private ESteps _steps = ESteps.None;
+
+
+        internal LoadWechatAssetBundleOperation(PackageBundle bundle, DownloadFileOptions options)
+        {
+            _bundle = bundle;
+            _options = options;
+            _failedTryAgain = options.FailedTryAgain;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            // 创建下载器
+            if (_steps == ESteps.CreateRequest)
+            {
+                string url = GetRequestURL();
+                _unityAssetBundleRequestOp = new UnityWechatAssetBundleRequestOperation(_bundle, url);
+                _unityAssetBundleRequestOp.StartOperation();
+                AddChildOperation(_unityAssetBundleRequestOp);
+                _steps = ESteps.CheckRequest;
+            }
+
+            // 检测下载结果
+            if (_steps == ESteps.CheckRequest)
+            {
+                _unityAssetBundleRequestOp.UpdateOperation();
+                Progress = _unityAssetBundleRequestOp.Progress;
+                DownloadProgress = _unityAssetBundleRequestOp.DownloadProgress;
+                DownloadedBytes = _unityAssetBundleRequestOp.DownloadedBytes;
+                if (_unityAssetBundleRequestOp.IsDone == false)
+                    return;
+
+                if (_unityAssetBundleRequestOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                    Result = _unityAssetBundleRequestOp.Result;
+                }
+                else
+                {
+                    if (_failedTryAgain > 0)
+                    {
+                        _steps = ESteps.TryAgain;
+                        YooLogger.Warning($"Failed download : {_unityAssetBundleRequestOp.URL} Try again !");
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = _unityAssetBundleRequestOp.Error;
+                        YooLogger.Error(Error);
+                    }
+                }
+            }
+
+            // 重新尝试下载
+            if (_steps == ESteps.TryAgain)
+            {
+                _tryAgainTimer += Time.unscaledDeltaTime;
+                if (_tryAgainTimer > 1f)
+                {
+                    _tryAgainTimer = 0f;
+                    _failedTryAgain--;
+                    Progress = 0f;
+                    DownloadProgress = 0f;
+                    DownloadedBytes = 0;
+                    _steps = ESteps.CreateRequest;
+                }
+            }
+        }
+
+        /// <summary>
+        /// 获取网络请求地址
+        /// </summary>
+        protected string GetRequestURL()
+        {
+            // 轮流返回请求地址
+            _requestCount++;
+            if (_requestCount % 2 == 0)
+                return _options.FallbackURL;
+            else
+                return _options.MainURL;
+        }
+    }
+}
+#endif

Assets/00.StaryEvoTools/WechatFileSystem/Operation/internal/LoadWechatAssetBundleOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 9ccd1061504155f44847e21683b57ec7
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/00.StaryEvoTools/WechatFileSystem/Operation/internal/UnityWechatAssetBundleRequestOperation.cs

@@ -0,0 +1,96 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using UnityEngine.Networking;
+using UnityEngine;
+using WeChatWASM;
+
+namespace YooAsset
+{
+    internal class UnityWechatAssetBundleRequestOperation : UnityWebRequestOperation
+    {
+        protected enum ESteps
+        {
+            None,
+            CreateRequest,
+            Download,
+            Done,
+        }
+
+        private readonly PackageBundle _packageBundle;
+        private UnityWebRequestAsyncOperation _requestOperation;
+        private ESteps _steps = ESteps.None;
+
+        /// <summary>
+        /// 请求结果
+        /// </summary>
+        public AssetBundle Result { private set; get; }
+
+        internal UnityWechatAssetBundleRequestOperation(PackageBundle bundle, string url) : base(url)
+        {
+            _packageBundle = bundle;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CreateRequest;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.CreateRequest)
+            {
+                CreateWebRequest();
+                _steps = ESteps.Download;
+            }
+
+            if (_steps == ESteps.Download)
+            {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
+                Progress = _requestOperation.progress;
+                if (_requestOperation.isDone == false)
+                    return;
+
+                if (CheckRequestResult())
+                {
+                    var downloadHanlder = (DownloadHandlerWXAssetBundle)_webRequest.downloadHandler;
+                    AssetBundle assetBundle = downloadHanlder.assetBundle;
+                    if (assetBundle == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"URL : {_requestURL} Download handler asset bundle object is null !";
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Result = assetBundle;
+                        Status = EOperationStatus.Succeed;
+
+                        //TODO 解决微信小游戏插件问题
+                        // Issue : https://github.com/wechat-miniprogram/minigame-unity-webgl-transform/issues/108#
+                        DownloadProgress = 1f;
+                        DownloadedBytes = _packageBundle.FileSize;
+                        Progress = 1f;
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                }
+
+                // 注意：最终释放请求器
+                DisposeRequest();
+            }
+        }
+
+        private void CreateWebRequest()
+        {
+            _webRequest = WXAssetBundle.GetAssetBundle(_requestURL);
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            _requestOperation = _webRequest.SendWebRequest();
+        }
+    }
+}
+#endif

Assets/00.StaryEvoTools/WechatFileSystem/Operation/internal/UnityWechatAssetBundleRequestOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: c66c1c3728b99b74fbfe1363e3e76704
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: