TEngine 6

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/BundleResult.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: b4c0dec5e8fae814eb7ac0299187e8f4
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/BundleResult/WXAssetBundleResult.cs

@@ -0,0 +1,64 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using System.IO;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+using WeChatWASM;
+
+namespace YooAsset
+{
+    internal class WXAssetBundleResult : BundleResult
+    {
+        private readonly IFileSystem _fileSystem;
+        private readonly PackageBundle _packageBundle;
+        private readonly AssetBundle _assetBundle;
+        
+        public WXAssetBundleResult(IFileSystem fileSystem, PackageBundle packageBundle, AssetBundle assetBundle)
+        {
+            _fileSystem = fileSystem;
+            _packageBundle = packageBundle;
+            _assetBundle = assetBundle;
+        }
+
+        public override void UnloadBundleFile()
+        {
+            if (_assetBundle != null)
+            {
+                _assetBundle.WXUnload(true);
+            }
+        }
+        public override string GetBundleFilePath()
+        {
+            return _fileSystem.GetBundleFilePath(_packageBundle);
+        }
+        public override byte[] ReadBundleFileData()
+        {
+            return _fileSystem.ReadBundleFileData(_packageBundle);
+        }
+        public override string ReadBundleFileText()
+        {
+            return _fileSystem.ReadBundleFileText(_packageBundle);
+        }
+
+        public override FSLoadAssetOperation LoadAssetAsync(AssetInfo assetInfo)
+        {
+            var operation = new AssetBundleLoadAssetOperation(_packageBundle, _assetBundle, assetInfo);
+            return operation;
+        }
+        public override FSLoadAllAssetsOperation LoadAllAssetsAsync(AssetInfo assetInfo)
+        {
+            var operation = new AssetBundleLoadAllAssetsOperation(_packageBundle, _assetBundle, assetInfo);
+            return operation;
+        }
+        public override FSLoadSubAssetsOperation LoadSubAssetsAsync(AssetInfo assetInfo)
+        {
+            var operation = new AssetBundleLoadSubAssetsOperation(_packageBundle, _assetBundle, assetInfo);
+            return operation;
+        }
+        public override FSLoadSceneOperation LoadSceneOperation(AssetInfo assetInfo, LoadSceneParameters loadParams, bool suspendLoad)
+        {
+            var operation = new AssetBundleLoadSceneOperation(assetInfo, loadParams, suspendLoad);
+            return operation;
+        }
+    }
+}
+#endif

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/BundleResult/WXAssetBundleResult.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 750c122b5d921aa4a9c882e21982ebd5
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 85ec3f4c43303f74a9b9fa14288f9201
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/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

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSClearAllBundleFilesOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: d48600eb90915544586c0108b94cfd02
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs

@@ -0,0 +1,98 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using System.Collections.Generic;
+using System.IO;
+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;
+    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;
+
+            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)
+                {
+                    // 注意：存储文件必须按照Bundle文件哈希值存储！
+                    string bundleGUID = Path.GetFileNameWithoutExtension(fileStat.path);
+                    if (_manifest.TryGetPackageBundleByBundleGUID(bundleGUID, out PackageBundle value) == false)
+                    {
+                        string fullPath = WX.GetCachePath(fileStat.path);
+                        if (_unusedCacheFiles.Contains(fullPath) == false)
+                            _unusedCacheFiles.Add(fullPath);
+                    }
+                }
+
+                _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

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e4938d8a5a9d7f24db37f8df6b32501f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSDownloadFileOperation.cs

@@ -0,0 +1,110 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using UnityEngine;
+using UnityEngine.Networking;
+using YooAsset;
+using WeChatWASM;
+
+internal class WXFSDownloadFileOperation : DefaultDownloadFileOperation
+{
+    private WechatFileSystem _fileSystem;
+    private ESteps _steps = ESteps.None;
+
+    internal WXFSDownloadFileOperation(WechatFileSystem fileSystem, PackageBundle bundle, DownloadParam param) : base(bundle, param)
+    {
+        _fileSystem = fileSystem;
+    }
+    internal override void InternalStart()
+    {
+        _steps = ESteps.CreateRequest;
+    }
+    internal override void InternalUpdate()
+    {
+        // 创建下载器
+        if (_steps == ESteps.CreateRequest)
+        {
+            // 获取请求地址
+            _requestURL = GetRequestURL();
+
+            // 重置变量
+            ResetRequestFiled();
+
+            // 创建下载器
+            CreateWebRequest();
+
+            _steps = ESteps.CheckRequest;
+        }
+
+        // 检测下载结果
+        if (_steps == ESteps.CheckRequest)
+        {
+            DownloadProgress = _webRequest.downloadProgress;
+            DownloadedBytes = (long)_webRequest.downloadedBytes;
+            Progress = DownloadProgress;
+            if (_webRequest.isDone == false)
+            {
+                //TODO 由于微信小游戏插件的问题，暂时不能判定超时！
+                // Issue : https://github.com/wechat-miniprogram/minigame-unity-webgl-transform/issues/108#
+                //CheckRequestTimeout();
+                return;
+            }
+
+            // 检查网络错误
+            if (CheckRequestResult())
+            {
+                _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
+            {
+                _steps = ESteps.TryAgain;
+            }
+
+            // 注意：最终释放请求器
+            DisposeWebRequest();
+        }
+
+        // 重新尝试下载
+        if (_steps == ESteps.TryAgain)
+        {
+            if (FailedTryAgain <= 0)
+            {
+                Status = EOperationStatus.Failed;
+                _steps = ESteps.Done;
+                YooLogger.Error(Error);
+                return;
+            }
+
+            _tryAgainTimer += Time.unscaledDeltaTime;
+            if (_tryAgainTimer > 1f)
+            {
+                FailedTryAgain--;
+                _steps = ESteps.CreateRequest;
+                YooLogger.Warning(Error);
+            }
+        }
+    }
+
+    private void CreateWebRequest()
+    {
+        _webRequest = UnityWebRequest.Get(_requestURL);
+        _webRequest.SetRequestHeader("wechatminigame-preload", "1");
+        _webRequest.disposeDownloadHandlerOnDispose = true;
+        _webRequest.SendWebRequest();
+    }
+    private void DisposeWebRequest()
+    {
+        if (_webRequest != null)
+        {
+            //注意：引擎底层会自动调用Abort方法
+            _webRequest.Dispose();
+            _webRequest = null;
+        }
+    }
+}
+#endif

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSDownloadFileOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e58c7876bd106e04380cbf4c00e8d584
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/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

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSInitializeOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: a0c5566de97a44245b840bf388cdfbe0
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSLoadBundleOperation.cs

@@ -0,0 +1,96 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using YooAsset;
+
+internal class WXFSLoadBundleOperation : FSLoadBundleOperation
+{
+    private enum ESteps
+    {
+        None,
+        DownloadAssetBundle,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly PackageBundle _bundle;
+    private DownloadAssetBundleOperation _downloadAssetBundleOp;
+    private ESteps _steps = ESteps.None;
+    
+    internal WXFSLoadBundleOperation(WechatFileSystem fileSystem, PackageBundle bundle)
+    {
+        _fileSystem = fileSystem;
+        _bundle = bundle;
+    }
+    internal override void InternalStart()
+    {
+        _steps = ESteps.DownloadAssetBundle;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.DownloadAssetBundle)
+        {
+            if (_downloadAssetBundleOp == null)
+            {
+                DownloadParam downloadParam = new DownloadParam(int.MaxValue, 60);
+                downloadParam.MainURL = _fileSystem.RemoteServices.GetRemoteMainURL(_bundle.FileName); ;
+                downloadParam.FallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(_bundle.FileName);
+
+                if (_bundle.Encrypted)
+                {
+                    _downloadAssetBundleOp = new DownloadWebEncryptAssetBundleOperation(false, _fileSystem.DecryptionServices, _bundle, downloadParam);
+                    _downloadAssetBundleOp.StartOperation();
+                    AddChildOperation(_downloadAssetBundleOp);
+                }
+                else
+                {
+                    _downloadAssetBundleOp = new DownloadWechatAssetBundleOperation(_bundle, downloadParam);
+                    _downloadAssetBundleOp.StartOperation();
+                    AddChildOperation(_downloadAssetBundleOp);
+                }
+            }
+
+            _downloadAssetBundleOp.UpdateOperation();
+            DownloadProgress = _downloadAssetBundleOp.DownloadProgress;
+            DownloadedBytes = (long)_downloadAssetBundleOp.DownloadedBytes;
+            Progress = DownloadProgress;
+            if (_downloadAssetBundleOp.IsDone == false)
+                return;
+
+            if (_downloadAssetBundleOp.Status == EOperationStatus.Succeed)
+            {
+                var assetBundle = _downloadAssetBundleOp.Result;
+                if (assetBundle == null)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"{nameof(DownloadAssetBundleOperation)} loaded asset bundle is null !";
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Result = new WXAssetBundleResult(_fileSystem, _bundle, assetBundle);
+                    Status = EOperationStatus.Succeed;
+                }
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _downloadAssetBundleOp.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

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSLoadBundleOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 7277b7d1ed5616b41986cad60c3fe97c
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSLoadPackageManifestOperation.cs

@@ -0,0 +1,92 @@
+#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 RequestWechatPackageHashOperation _requestPackageHashOp;
+    private LoadWechatPackageManifestOperation _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 RequestWechatPackageHashOperation(_fileSystem, _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;
+                _loadPackageManifestOp = new LoadWechatPackageManifestOperation(_fileSystem, _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

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSLoadPackageManifestOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: cfbe2efa84cb0524f9e3482e6b895f41
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/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 RequestWechatPackageVersionOperation _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 RequestWechatPackageVersionOperation(_fileSystem, _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

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/WXFSRequestPackageVersionOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 4353a9a0cbf86cc43acf3320458e3ac8
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/internal.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 3fd307b5063003545a663ccbec226a23
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/internal/DownloadWechatAssetBundleOperation.cs

@@ -0,0 +1,128 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using UnityEngine;
+using WeChatWASM;
+
+namespace YooAsset
+{
+    internal class DownloadWechatAssetBundleOperation : DownloadAssetBundleOperation
+    {
+        private ESteps _steps = ESteps.None;
+
+        internal DownloadWechatAssetBundleOperation(PackageBundle bundle, DownloadParam param) : base(bundle, param)
+        {
+        }
+        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)
+            {
+                // 获取请求地址
+                _requestURL = GetRequestURL();
+
+                // 重置变量
+                ResetRequestFiled();
+
+                // 创建下载器
+                CreateWebRequest();
+
+                _steps = ESteps.CheckRequest;
+            }
+
+            // 检测下载结果
+            if (_steps == ESteps.CheckRequest)
+            {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
+                Progress = DownloadProgress;
+                if (_webRequest.isDone == false)
+                {
+                    //TODO 由于微信小游戏插件的问题，暂时不能判定超时！
+                    // Issue : https://github.com/wechat-miniprogram/minigame-unity-webgl-transform/issues/108#
+                    //CheckRequestTimeout();
+                    return;
+                }
+
+                // 检查网络错误
+                if (CheckRequestResult())
+                {
+                    var downloadHanlder = (DownloadHandlerWXAssetBundle)_webRequest.downloadHandler;
+                    AssetBundle assetBundle = downloadHanlder.assetBundle;
+                    if (assetBundle == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = "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 = Bundle.FileSize;
+                        Progress = 1f;
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.TryAgain;
+                }
+
+                // 注意：最终释放请求器
+                DisposeWebRequest();
+            }
+
+            // 重新尝试下载
+            if (_steps == ESteps.TryAgain)
+            {
+                if (FailedTryAgain <= 0)
+                {
+                    Status = EOperationStatus.Failed;
+                    _steps = ESteps.Done;
+                    YooLogger.Error(Error);
+                    return;
+                }
+
+                _tryAgainTimer += Time.unscaledDeltaTime;
+                if (_tryAgainTimer > 1f)
+                {
+                    FailedTryAgain--;
+                    _steps = ESteps.CreateRequest;
+                    YooLogger.Warning(Error);
+                }
+            }
+        }
+        internal override void InternalAbort()
+        {
+            _steps = ESteps.Done;
+            DisposeWebRequest();
+        }
+
+        private void CreateWebRequest()
+        {
+            _webRequest = WXAssetBundle.GetAssetBundle(_requestURL);
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            _webRequest.SendWebRequest();
+        }
+        private void DisposeWebRequest()
+        {
+            if (_webRequest != null)
+            {
+                //注意：引擎底层会自动调用Abort方法
+                _webRequest.Dispose();
+                _webRequest = null;
+            }
+        }
+    }
+}
+#endif

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/internal/DownloadWechatAssetBundleOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e556be3f274429e4ca6c542fff90e6ab
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/internal/LoadWechatPackageManifestOperation.cs

@@ -0,0 +1,129 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using YooAsset;
+
+internal class LoadWechatPackageManifestOperation : AsyncOperationBase
+{
+    private enum ESteps
+    {
+        None,
+        RequestFileData,
+        VerifyFileData,
+        LoadManifest,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly string _packageVersion;
+    private readonly string _packageHash;
+    private readonly int _timeout;
+    private UnityWebDataRequestOperation _webDataRequestOp;
+    private DeserializeManifestOperation _deserializer;
+    private int _requestCount = 0;
+    private ESteps _steps = ESteps.None;
+
+    /// <summary>
+    /// 包裹清单
+    /// </summary>
+    public PackageManifest Manifest { private set; get; }
+
+
+    internal LoadWechatPackageManifestOperation(WechatFileSystem fileSystem, string packageVersion, string packageHash, int timeout)
+    {
+        _fileSystem = fileSystem;
+        _packageVersion = packageVersion;
+        _packageHash = packageHash;
+        _timeout = timeout;
+    }
+    internal override void InternalStart()
+    {
+        _requestCount = WebRequestCounter.GetRequestFailedCount(_fileSystem.PackageName, nameof(LoadWechatPackageManifestOperation));
+        _steps = ESteps.RequestFileData;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.RequestFileData)
+        {
+            if (_webDataRequestOp == null)
+            {
+                string fileName = YooAssetSettingsData.GetManifestBinaryFileName(_fileSystem.PackageName, _packageVersion);
+                string url = GetRequestURL(fileName);
+                _webDataRequestOp = new UnityWebDataRequestOperation(url, _timeout);
+                _webDataRequestOp.StartOperation();
+                AddChildOperation(_webDataRequestOp);
+            }
+
+            _webDataRequestOp.UpdateOperation();
+            Progress = _webDataRequestOp.Progress;
+            if (_webDataRequestOp.IsDone == false)
+                return;
+
+            if (_webDataRequestOp.Status == EOperationStatus.Succeed)
+            {
+                _steps = ESteps.VerifyFileData;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _webDataRequestOp.Error;
+                WebRequestCounter.RecordRequestFailed(_fileSystem.PackageName, nameof(LoadWechatPackageManifestOperation));
+            }
+        }
+
+        if (_steps == ESteps.VerifyFileData)
+        {
+            string fileHash = HashUtility.BytesCRC32(_webDataRequestOp.Result);
+            if (fileHash == _packageHash)
+            {
+                _steps = ESteps.LoadManifest;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = "Failed to verify package manifest file!";
+            }
+        }
+
+        if (_steps == ESteps.LoadManifest)
+        {
+            if (_deserializer == null)
+            {
+                _deserializer = new DeserializeManifestOperation(_webDataRequestOp.Result);
+                _deserializer.StartOperation();
+                AddChildOperation(_deserializer);
+            }
+
+            _deserializer.UpdateOperation();
+            Progress = _deserializer.Progress;
+            if (_deserializer.IsDone == false)
+                return;
+
+            if (_deserializer.Status == EOperationStatus.Succeed)
+            {
+                _steps = ESteps.Done;
+                Manifest = _deserializer.Manifest;
+                Status = EOperationStatus.Succeed;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _deserializer.Error;
+            }
+        }
+    }
+
+    private string GetRequestURL(string fileName)
+    {
+        // 轮流返回请求地址
+        if (_requestCount % 2 == 0)
+            return _fileSystem.RemoteServices.GetRemoteMainURL(fileName);
+        else
+            return _fileSystem.RemoteServices.GetRemoteFallbackURL(fileName);
+    }
+}
+#endif

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/internal/LoadWechatPackageManifestOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 2c2153284d246964fb2146f9fdda311c
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/internal/RequestWechatPackageHashOperation.cs

@@ -0,0 +1,92 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using YooAsset;
+
+internal class RequestWechatPackageHashOperation : AsyncOperationBase
+{
+    private enum ESteps
+    {
+        None,
+        RequestPackageHash,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly string _packageVersion;
+    private readonly int _timeout;
+    private UnityWebTextRequestOperation _webTextRequestOp;
+    private int _requestCount = 0;
+    private ESteps _steps = ESteps.None;
+
+    /// <summary>
+    /// 包裹哈希值
+    /// </summary>
+    public string PackageHash { private set; get; }
+
+
+    public RequestWechatPackageHashOperation(WechatFileSystem fileSystem, string packageVersion, int timeout)
+    {
+        _fileSystem = fileSystem;
+        _packageVersion = packageVersion;
+        _timeout = timeout;
+    }
+    internal override void InternalStart()
+    {
+        _requestCount = WebRequestCounter.GetRequestFailedCount(_fileSystem.PackageName, nameof(RequestWechatPackageHashOperation));
+        _steps = ESteps.RequestPackageHash;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.RequestPackageHash)
+        {
+            if (_webTextRequestOp == null)
+            {
+                string fileName = YooAssetSettingsData.GetPackageHashFileName(_fileSystem.PackageName, _packageVersion);
+                string url = GetRequestURL(fileName);
+                _webTextRequestOp = new UnityWebTextRequestOperation(url, _timeout);
+                _webTextRequestOp.StartOperation();
+                AddChildOperation(_webTextRequestOp);
+            }
+
+            _webTextRequestOp.UpdateOperation();
+            Progress = _webTextRequestOp.Progress;
+            if (_webTextRequestOp.IsDone == false)
+                return;
+
+            if (_webTextRequestOp.Status == EOperationStatus.Succeed)
+            {
+                PackageHash = _webTextRequestOp.Result;
+                if (string.IsNullOrEmpty(PackageHash))
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"Wechat package hash file content is empty !";
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _webTextRequestOp.Error;
+                WebRequestCounter.RecordRequestFailed(_fileSystem.PackageName, nameof(RequestWechatPackageHashOperation));
+            }
+        }
+    }
+
+    private string GetRequestURL(string fileName)
+    {
+        // 轮流返回请求地址
+        if (_requestCount % 2 == 0)
+            return _fileSystem.RemoteServices.GetRemoteMainURL(fileName);
+        else
+            return _fileSystem.RemoteServices.GetRemoteFallbackURL(fileName);
+    }
+}
+#endif

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/internal/RequestWechatPackageHashOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 3f8269507a575884f935f9fbc71396ea
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/internal/RequestWechatPackageVersionOperation.cs

@@ -0,0 +1,100 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using YooAsset;
+
+internal class RequestWechatPackageVersionOperation : AsyncOperationBase
+{
+    private enum ESteps
+    {
+        None,
+        RequestPackageVersion,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly int _timeout;
+    private readonly bool _appendTimeTicks;
+    private UnityWebTextRequestOperation _webTextRequestOp;
+    private int _requestCount = 0;
+    private ESteps _steps = ESteps.None;
+
+    /// <summary>
+    /// 包裹版本
+    /// </summary>
+    public string PackageVersion { private set; get; }
+
+    
+    public RequestWechatPackageVersionOperation(WechatFileSystem fileSystem, bool appendTimeTicks, int timeout)
+    {
+        _fileSystem = fileSystem;
+        _appendTimeTicks = appendTimeTicks;
+        _timeout = timeout;
+    }
+    internal override void InternalStart()
+    {
+        _requestCount = WebRequestCounter.GetRequestFailedCount(_fileSystem.PackageName, nameof(RequestWechatPackageVersionOperation));
+        _steps = ESteps.RequestPackageVersion;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.RequestPackageVersion)
+        {
+            if (_webTextRequestOp == null)
+            {
+                string fileName = YooAssetSettingsData.GetPackageVersionFileName(_fileSystem.PackageName);
+                string url = GetRequestURL(fileName);
+                _webTextRequestOp = new UnityWebTextRequestOperation(url, _timeout);
+                _webTextRequestOp.StartOperation();
+                AddChildOperation(_webTextRequestOp);
+            }
+
+            _webTextRequestOp.UpdateOperation();
+            Progress = _webTextRequestOp.Progress;
+            if (_webTextRequestOp.IsDone == false)
+                return;
+
+            if (_webTextRequestOp.Status == EOperationStatus.Succeed)
+            {
+                PackageVersion = _webTextRequestOp.Result;
+                if (string.IsNullOrEmpty(PackageVersion))
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"Wechat package version file content is empty !";
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _webTextRequestOp.Error;
+                WebRequestCounter.RecordRequestFailed(_fileSystem.PackageName, nameof(RequestWechatPackageVersionOperation));
+            }
+        }
+    }
+
+    private string GetRequestURL(string fileName)
+    {
+        string url;
+
+        // 轮流返回请求地址
+        if (_requestCount % 2 == 0)
+            url = _fileSystem.RemoteServices.GetRemoteMainURL(fileName);
+        else
+            url = _fileSystem.RemoteServices.GetRemoteFallbackURL(fileName);
+
+        // 在URL末尾添加时间戳
+        if (_appendTimeTicks)
+            return $"{url}?{System.DateTime.UtcNow.Ticks}";
+        else
+            return url;
+    }
+}
+#endif

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/Operation/internal/RequestWechatPackageVersionOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 758fbcd91469b3f4e843a9ea7e3deda9
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/WechatFileSystem.cs

@@ -0,0 +1,282 @@
+#if UNITY_WEBGL && WEIXINMINIGAME
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using YooAsset;
+using WeChatWASM;
+
+public static class WechatFileSystemCreater
+{
+    public static FileSystemParameters CreateFileSystemParameters(string packageRoot, IRemoteServices remoteServices)
+    {
+        string fileSystemClass = $"{nameof(WechatFileSystem)},YooAsset.RuntimeExtension";
+        var fileSystemParams = new FileSystemParameters(fileSystemClass, packageRoot);
+        fileSystemParams.AddParameter(FileSystemParametersDefine.REMOTE_SERVICES, remoteServices);
+        return fileSystemParams;
+    }
+    public static FileSystemParameters CreateFileSystemParameters(string packageRoot, IRemoteServices remoteServices, IWebDecryptionServices decryptionServices)
+    {
+        string fileSystemClass = $"{nameof(WechatFileSystem)},YooAsset.RuntimeExtension";
+        var fileSystemParams = new FileSystemParameters(fileSystemClass, packageRoot);
+        fileSystemParams.AddParameter(FileSystemParametersDefine.REMOTE_SERVICES, remoteServices);
+        fileSystemParams.AddParameter(FileSystemParametersDefine.DECRYPTION_SERVICES, decryptionServices);
+        return fileSystemParams;
+    }
+}
+
+/// <summary>
+/// 微信小游戏文件系统
+/// 参考：https://wechat-miniprogram.github.io/minigame-unity-webgl-transform/Design/UsingAssetBundle.html
+/// </summary>
+internal class WechatFileSystem : IFileSystem
+{
+    private class WebRemoteServices : IRemoteServices
+    {
+        private readonly string _webPackageRoot;
+        protected readonly Dictionary<string, string> _mapping = new Dictionary<string, string>(10000);
+
+        public WebRemoteServices(string buildinPackRoot)
+        {
+            _webPackageRoot = buildinPackRoot;
+        }
+        string IRemoteServices.GetRemoteMainURL(string fileName)
+        {
+            return GetFileLoadURL(fileName);
+        }
+        string IRemoteServices.GetRemoteFallbackURL(string fileName)
+        {
+            return GetFileLoadURL(fileName);
+        }
+
+        private string GetFileLoadURL(string fileName)
+        {
+            if (_mapping.TryGetValue(fileName, out string url) == false)
+            {
+                string filePath = PathUtility.Combine(_webPackageRoot, fileName);
+                url = DownloadSystemHelper.ConvertToWWWPath(filePath);
+                _mapping.Add(fileName, url);
+            }
+            return url;
+        }
+    }
+
+    private readonly Dictionary<string, string> _cacheFilePathMapping = new Dictionary<string, string>(10000);
+    private WXFileSystemManager _fileSystemMgr;
+    private string _wxCacheRoot = string.Empty;
+
+    /// <summary>
+    /// 包裹名称
+    /// </summary>
+    public string PackageName { private set; get; }
+
+    private readonly string _packageRoot = YooAssetSettingsData.Setting.DefaultYooFolderName;
+
+    /// <summary>
+    /// 文件根目录
+    /// </summary>
+    public string FileRoot
+    {
+        get
+        {
+            return _wxCacheRoot;
+        }
+    }
+
+    /// <summary>
+    /// 文件数量
+    /// </summary>
+    public int FileCount
+    {
+        get
+        {
+            return 0;
+        }
+    }
+
+    #region 自定义参数
+    /// <summary>
+    /// 自定义参数：远程服务接口
+    /// </summary>
+    public IRemoteServices RemoteServices { private set; get; } = null;
+
+    /// <summary>
+    ///  自定义参数：解密方法类
+    /// </summary>
+    public IWebDecryptionServices DecryptionServices { private set; get; }
+    #endregion
+
+
+    public WechatFileSystem()
+    {
+    }
+    public virtual FSInitializeFileSystemOperation InitializeFileSystemAsync()
+    {
+        var operation = new WXFSInitializeOperation(this);
+        return operation;
+    }
+    public virtual FSLoadPackageManifestOperation LoadPackageManifestAsync(string packageVersion, int timeout)
+    {
+        var operation = new WXFSLoadPackageManifestOperation(this, packageVersion, timeout);
+        return operation;
+    }
+    public virtual FSRequestPackageVersionOperation RequestPackageVersionAsync(bool appendTimeTicks, int timeout)
+    {
+        var operation = new WXFSRequestPackageVersionOperation(this, appendTimeTicks, timeout);
+        return operation;
+    }
+    public virtual FSClearCacheFilesOperation ClearCacheFilesAsync(PackageManifest manifest, string clearMode, object clearParam)
+    {
+        if (clearMode == EFileClearMode.ClearAllBundleFiles.ToString())
+        {
+            var operation = new WXFSClearAllBundleFilesOperation(this);
+            return operation;
+        }
+        else if (clearMode == EFileClearMode.ClearUnusedBundleFiles.ToString())
+        {
+            var operation = new WXFSClearUnusedBundleFilesAsync(this, manifest);
+            return operation;
+        }
+        else
+        {
+            string error = $"Invalid clear mode : {clearMode}";
+            var operation = new FSClearCacheFilesCompleteOperation(error);
+            return operation;
+        }
+    }
+    public virtual FSDownloadFileOperation DownloadFileAsync(PackageBundle bundle, DownloadParam param)
+    {
+        param.MainURL = RemoteServices.GetRemoteMainURL(bundle.FileName);
+        param.FallbackURL = RemoteServices.GetRemoteFallbackURL(bundle.FileName);
+        var operation = new WXFSDownloadFileOperation(this, bundle, param);
+        return operation;
+    }
+    public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
+    {
+        if (bundle.BundleType == (int)EBuildBundleType.AssetBundle)
+        {
+            var operation = new WXFSLoadBundleOperation(this, bundle);
+            return operation;
+        }
+        else
+        {
+            string error = $"{nameof(WechatFileSystem)} not support load bundle type : {bundle.BundleType}";
+            var operation = new FSLoadBundleCompleteOperation(error);
+            return operation;
+        }
+    }
+
+    public virtual void SetParameter(string name, object value)
+    {
+        if (name == FileSystemParametersDefine.REMOTE_SERVICES)
+        {
+            RemoteServices = (IRemoteServices)value;
+        }
+        else if (name == FileSystemParametersDefine.DECRYPTION_SERVICES)
+        {
+            DecryptionServices = (IWebDecryptionServices)value;
+        }
+        else
+        {
+            YooLogger.Warning($"Invalid parameter : {name}");
+        }
+    }
+    public virtual void OnCreate(string packageName, string packageRoot)
+    {
+        PackageName = packageName;
+        _wxCacheRoot = packageRoot;
+
+        if (string.IsNullOrEmpty(_wxCacheRoot))
+        {
+            throw new System.Exception("请配置微信小游戏缓存根目录！");
+        }
+
+        if (_wxCacheRoot.StartsWith(WX.PluginCachePath) == false)
+        {
+            _wxCacheRoot = PathUtility.Combine(WX.PluginCachePath, _wxCacheRoot);
+        }
+
+        // 注意：CDN服务未启用的情况下，使用微信WEB服务器
+        if (RemoteServices == null)
+        {
+            string webRoot = PathUtility.Combine(Application.streamingAssetsPath, YooAssetSettingsData.Setting.DefaultYooFolderName, packageName);
+            RemoteServices = new WebRemoteServices(webRoot);
+        }
+
+        _fileSystemMgr = WX.GetFileSystemManager();
+    }
+    public virtual void OnDestroy()
+    {
+    }
+
+    public virtual bool Belong(PackageBundle bundle)
+    {
+        return true;
+    }
+    public virtual bool Exists(PackageBundle bundle)
+    {
+        string filePath = GetCacheFileLoadPath(bundle);
+        return CheckCacheFileExist(filePath);
+    }
+    public virtual bool NeedDownload(PackageBundle bundle)
+    {
+        if (Belong(bundle) == false)
+            return false;
+
+        return Exists(bundle) == false;
+    }
+    public virtual bool NeedUnpack(PackageBundle bundle)
+    {
+        return false;
+    }
+    public virtual bool NeedImport(PackageBundle bundle)
+    {
+        return false;
+    }
+
+    public virtual string GetBundleFilePath(PackageBundle bundle)
+    {
+        return GetCacheFileLoadPath(bundle);
+    }
+    public virtual byte[] ReadBundleFileData(PackageBundle bundle)
+    {
+        string filePath = GetCacheFileLoadPath(bundle);
+        if (CheckCacheFileExist(filePath))
+            return _fileSystemMgr.ReadFileSync(filePath);
+        else
+            return Array.Empty<byte>();
+    }
+    public virtual string ReadBundleFileText(PackageBundle bundle)
+    {
+        string filePath = GetCacheFileLoadPath(bundle);
+        if (CheckCacheFileExist(filePath))
+            return _fileSystemMgr.ReadFileSync(filePath, "utf8");
+        else
+            return string.Empty;
+    }
+
+    #region 内部方法
+    public WXFileSystemManager GetFileSystemMgr()
+    {
+        return _fileSystemMgr;
+    }
+    public bool CheckCacheFileExist(string filePath)
+    {
+        string result = WX.GetCachePath(filePath);
+        if (string.IsNullOrEmpty(result))
+            return false;
+        else
+            return true;
+    }
+    public string GetCacheFileLoadPath(PackageBundle bundle)
+    {
+        if (_cacheFilePathMapping.TryGetValue(bundle.BundleGUID, out string filePath) == false)
+        {
+            filePath = PathUtility.Combine(_wxCacheRoot, bundle.FileName);
+            _cacheFilePathMapping.Add(bundle.BundleGUID, filePath);
+        }
+        return filePath;
+    }
+    #endregion
+}
+#endif

UnityProject/Packages/YooAsset/Runtime/Extension/ExtensionFileSystem/WechatFileSystem/WechatFileSystem.cs.meta

@@ -0,0 +1,11 @@
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