Update CHANGELOG.md

HostPlayMode模式下内置文件系统可以为空。

Assets/YooAsset/CHANGELOG.md

@@ -2,6 +2,41 @@
 
 All notable changes to this package will be documented in this file.
 
+## [2.2.3-preview] - 2024-08-13
+
+### Fixed
+
+- (#311) 修复了断点续传下载器极小概率报错 : “416 Range Not Satisfiable”
+
+### Improvements
+
+- 原生文件构建管线支持原生文件加密。
+
+- HostPlayMode模式下内置文件系统初始化参数可以为空。
+
+- 场景加载增加了LocalPhysicsMode参数来控制物理运行模式。
+
+- 默认的内置文件系统和缓存文件系统增加解密方法。
+
+  ```csharp
+  /// <summary>
+  /// 创建默认的内置文件系统参数
+  /// </summary>
+  /// <param name="decryptionServices">加密文件解密服务类</param>
+  /// <param name="verifyLevel">缓存文件的校验等级</param>
+  /// <param name="rootDirectory">内置文件的根路径</param>
+  public static FileSystemParameters CreateDefaultBuildinFileSystemParameters(IDecryptionServices decryptionServices, EFileVerifyLevel verifyLevel, string rootDirectory);
+  
+  /// <summary>
+  /// 创建默认的缓存文件系统参数
+  /// </summary>
+  /// <param name="remoteServices">远端资源地址查询服务类</param>
+  /// <param name="decryptionServices">加密文件解密服务类</param>
+  /// <param name="verifyLevel">缓存文件的校验等级</param>
+  /// <param name="rootDirectory">文件系统的根目录</param>
+  public static FileSystemParameters CreateDefaultCacheFileSystemParameters(IRemoteServices remoteServices, IDecryptionServices decryptionServices, EFileVerifyLevel verifyLevel, string rootDirectory);
+  ```
+
 ## [2.2.2-preview] - 2024-07-31
 
 ### Fixed

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BuiltinBuildPipeline/BuildTasks/TaskEncryption_BBP.cs

@@ -1,9 +1,4 @@
-using System;
+
-using System.Linq;
-using System.IO;
-using System.Collections;
-using System.Collections.Generic;
-
 namespace YooAsset.Editor
 {
     public class TaskEncryption_BBP : TaskEncryption, IBuildTask

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/RawFileBuildPipeline/BuildTasks/TaskEncryption_RFBP.cs

@@ -0,0 +1,18 @@
+
+namespace YooAsset.Editor
+{
+    public class TaskEncryption_RFBP : TaskEncryption, IBuildTask
+    {
+        void IBuildTask.Run(BuildContext context)
+        {
+            var buildParameters = context.GetContextObject<BuildParametersContext>();
+            var buildMapContext = context.GetContextObject<BuildMapContext>();
+
+            var buildMode = buildParameters.Parameters.BuildMode;
+            if (buildMode == EBuildMode.ForceRebuild || buildMode == EBuildMode.IncrementalBuild)
+            {
+                EncryptingBundleFiles(buildParameters, buildMapContext);
+            }
+        }
+    }
+}

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/RawFileBuildPipeline/BuildTasks/TaskEncryption_RFBP.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: b3e156139dcc25f4c9440ec3d6cb96d2
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/RawFileBuildPipeline/RawFileBuildPipeline.cs

@@ -32,6 +32,7 @@ namespace YooAsset.Editor
                     new TaskPrepare_RFBP(),
                     new TaskGetBuildMap_RFBP(),
                     new TaskBuilding_RFBP(),
+                    new TaskEncryption_RFBP(),
                     new TaskUpdateBundleInfo_RFBP(),
                     new TaskCreateManifest_RFBP(),
                     new TaskCreateReport_RFBP(),

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/ScriptableBuildPipeline/BuildTasks/TaskEncryption_SBP.cs

@@ -1,9 +1,4 @@
-using System;
+
-using System.Linq;
-using System.IO;
-using System.Collections;
-using System.Collections.Generic;
-
 namespace YooAsset.Editor
 {
     public class TaskEncryption_SBP : TaskEncryption, IBuildTask

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystem.cs

@@ -98,6 +98,11 @@ namespace YooAsset
         /// 自定义参数：原生文件构建管线
         /// </summary>
         public bool RawFileBuildPipeline { private set; get; } = false;
+
+        /// <summary>
+        ///  自定义参数：解密方法类
+        /// </summary>
+        public IDecryptionServices DecryptionServices { private set; get; }
         #endregion
 
 
@@ -172,8 +177,11 @@ namespace YooAsset
 
                 if (_loadedStream.TryGetValue(bundle.BundleGUID, out Stream managedStream))
                 {
-                    managedStream.Close();
+                    if (managedStream != null)
-                    managedStream.Dispose();
+                    {
+                        managedStream.Close();
+                        managedStream.Dispose();
+                    }
                     _loadedStream.Remove(bundle.BundleGUID);
                 }
             }
@@ -181,18 +189,22 @@ namespace YooAsset
 
         public virtual void SetParameter(string name, object value)
         {
-            if (name == "FILE_VERIFY_LEVEL")
+            if (name == FileSystemParametersDefine.FILE_VERIFY_LEVEL)
             {
                 FileVerifyLevel = (EFileVerifyLevel)value;
             }
-            else if (name == "APPEND_FILE_EXTENSION")
+            else if (name == FileSystemParametersDefine.APPEND_FILE_EXTENSION)
             {
                 AppendFileExtension = (bool)value;
             }
-            else if (name == "RAW_FILE_BUILD_PIPELINE")
+            else if (name == FileSystemParametersDefine.RAW_FILE_BUILD_PIPELINE)
             {
                 RawFileBuildPipeline = (bool)value;
             }
+            else if (name == FileSystemParametersDefine.DECRYPTION_SERVICES)
+            {
+                DecryptionServices = (IDecryptionServices)value;
+            }
             else
             {
                 YooLogger.Warning($"Invalid parameter : {name}");
@@ -210,10 +222,11 @@ namespace YooAsset
             // 创建解压文件系统
             var remoteServices = new UnpackRemoteServices(_packageRoot);
             _unpackFileSystem = new DefaultUnpackFileSystem();
-            _unpackFileSystem.SetParameter("REMOTE_SERVICES", remoteServices);
+            _unpackFileSystem.SetParameter(FileSystemParametersDefine.REMOTE_SERVICES, remoteServices);
-            _unpackFileSystem.SetParameter("FILE_VERIFY_LEVEL", FileVerifyLevel);
+            _unpackFileSystem.SetParameter(FileSystemParametersDefine.FILE_VERIFY_LEVEL, FileVerifyLevel);
-            _unpackFileSystem.SetParameter("APPEND_FILE_EXTENSION", AppendFileExtension);
+            _unpackFileSystem.SetParameter(FileSystemParametersDefine.APPEND_FILE_EXTENSION, AppendFileExtension);
-            _unpackFileSystem.SetParameter("RAW_FILE_BUILD_PIPELINE", RawFileBuildPipeline);
+            _unpackFileSystem.SetParameter(FileSystemParametersDefine.RAW_FILE_BUILD_PIPELINE, RawFileBuildPipeline);
+            _unpackFileSystem.SetParameter(FileSystemParametersDefine.DECRYPTION_SERVICES, DecryptionServices);
             _unpackFileSystem.OnCreate(packageName, null);
         }
         public virtual void OnUpdate()
@@ -256,8 +269,28 @@ namespace YooAsset
             if (Exists(bundle) == false)
                 return null;
 
-            string filePath = GetBuildinFileLoadPath(bundle);
+            if (bundle.Encrypted)
-            return FileUtility.ReadAllBytes(filePath);
+            {
+                if (DecryptionServices == null)
+                {
+                    YooLogger.Error($"The {nameof(IDecryptionServices)} is null !");
+                    return null;
+                }
+
+                string filePath = GetBuildinFileLoadPath(bundle);
+                var fileInfo = new DecryptFileInfo()
+                {
+                    BundleName = bundle.BundleName,
+                    FileLoadCRC = bundle.UnityCRC,
+                    FileLoadPath = filePath,
+                };
+                return DecryptionServices.ReadFileData(fileInfo);
+            }
+            else
+            {
+                string filePath = GetBuildinFileLoadPath(bundle);
+                return FileUtility.ReadAllBytes(filePath);
+            }
         }
         public virtual string ReadFileText(PackageBundle bundle)
         {
@@ -267,8 +300,28 @@ namespace YooAsset
             if (Exists(bundle) == false)
                 return null;
 
-            string filePath = GetBuildinFileLoadPath(bundle);
+            if (bundle.Encrypted)
-            return FileUtility.ReadAllText(filePath);
+            {
+                if (DecryptionServices == null)
+                {
+                    YooLogger.Error($"The {nameof(IDecryptionServices)} is null !");
+                    return null;
+                }
+
+                string filePath = GetBuildinFileLoadPath(bundle);
+                var fileInfo = new DecryptFileInfo()
+                {
+                    BundleName = bundle.BundleName,
+                    FileLoadCRC = bundle.UnityCRC,
+                    FileLoadPath = filePath,
+                };
+                return DecryptionServices.ReadFileText(fileInfo);
+            }
+            else
+            {
+                string filePath = GetBuildinFileLoadPath(bundle);
+                return FileUtility.ReadAllText(filePath);
+            }
         }
 
         #region 内部方法
@@ -310,7 +363,7 @@ namespace YooAsset
             string rootPath = PathUtility.Combine(Application.dataPath, "StreamingAssets", YooAssetSettingsData.Setting.DefaultYooFolderName);
             return PathUtility.Combine(rootPath, PackageName);
         }
-        
+
         /// <summary>
         /// 记录文件信息
         /// </summary>
@@ -333,6 +386,42 @@ namespace YooAsset
         {
             return _unpackFileSystem.InitializeFileSystemAsync();
         }
+
+        /// <summary>
+        /// 加载加密资源文件
+        /// </summary>
+        public AssetBundle LoadEncryptedAssetBundle(PackageBundle bundle)
+        {
+            string filePath = GetBuildinFileLoadPath(bundle);
+            var fileInfo = new DecryptFileInfo()
+            {
+                BundleName = bundle.BundleName,
+                FileLoadCRC = bundle.UnityCRC,
+                FileLoadPath = filePath,
+            };
+
+            var assetBundle = DecryptionServices.LoadAssetBundle(fileInfo, out var managedStream);
+            _loadedStream.Add(bundle.BundleGUID, managedStream);
+            return assetBundle;
+        }
+
+        /// <summary>
+        /// 加载加密资源文件
+        /// </summary>
+        public AssetBundleCreateRequest LoadEncryptedAssetBundleAsync(PackageBundle bundle)
+        {
+            string filePath = GetBuildinFileLoadPath(bundle);
+            var fileInfo = new DecryptFileInfo()
+            {
+                BundleName = bundle.BundleName,
+                FileLoadCRC = bundle.UnityCRC,
+                FileLoadPath = filePath,
+            };
+
+            var createRequest = DecryptionServices.LoadAssetBundleAsync(fileInfo, out var managedStream);
+            _loadedStream.Add(bundle.BundleGUID, managedStream);
+            return createRequest;
+        }
         #endregion
     }
 }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystemBuild.cs

@@ -15,6 +15,8 @@ namespace YooAsset
         /// </summary>
         public void OnPreprocessBuild(UnityEditor.Build.Reporting.BuildReport report)
         {
+            YooLogger.Log("Begin to create catalog file !");
+
             string savePath = $"Assets/Resources/{YooAssetSettingsData.Setting.DefaultYooFolderName}";
             DirectoryInfo saveDirectory = new DirectoryInfo(savePath);
             if (saveDirectory.Exists)
@@ -24,8 +26,7 @@ namespace YooAsset
             DirectoryInfo rootDirectory = new DirectoryInfo(rootPath);
             if (rootDirectory.Exists == false)
             {
-                Debug.LogWarning($"Can not found StreamingAssets root directory : {rootPath}");
+                throw new System.Exception($"Can not found StreamingAssets root directory : {rootPath}");
-                return;
             }
 
             // 搜索所有Package目录
@@ -48,8 +49,7 @@ namespace YooAsset
                 string versionFilePath = $"{pacakgeDirectory}/{versionFileName}";
                 if (File.Exists(versionFilePath) == false)
                 {
-                    Debug.LogWarning($"Can not found package version file : {versionFilePath}");
+                    throw new System.Exception($"Can not found package version file : {versionFilePath}");
-                    return;
                 }
 
                 packageVersion = FileUtility.ReadAllText(versionFilePath);
@@ -62,8 +62,7 @@ namespace YooAsset
                 string manifestFilePath = $"{pacakgeDirectory}/{manifestFileName}";
                 if (File.Exists(manifestFilePath) == false)
                 {
-                    Debug.LogWarning($"Can not found package manifest file : {manifestFilePath}");
+                    throw new System.Exception($"Can not found package manifest file : {manifestFilePath}");
-                    return;
                 }
 
                 var binaryData = FileUtility.ReadAllBytes(manifestFilePath);

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/DBFSLoadBundleOperation.cs

@@ -11,8 +11,8 @@ namespace YooAsset
         private enum ESteps
         {
             None,
-            LoadBuidlinAssetBundle,
+            LoadAssetBundle,
-            CheckLoadBuildinResult,
+            CheckResult,
             Done,
         }
 
@@ -32,28 +32,56 @@ namespace YooAsset
         {
             DownloadProgress = 1f;
             DownloadedBytes = _bundle.FileSize;
-            _steps = ESteps.LoadBuidlinAssetBundle;
+            _steps = ESteps.LoadAssetBundle;
         }
         internal override void InternalOnUpdate()
         {
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
-            if (_steps == ESteps.LoadBuidlinAssetBundle)
+            if (_steps == ESteps.LoadAssetBundle)
             {
-                string filePath = _fileSystem.GetBuildinFileLoadPath(_bundle);
+                if (_bundle.Encrypted)
+                {
+                    if (_fileSystem.DecryptionServices == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"The {nameof(IDecryptionServices)} is null !";
+                        YooLogger.Error(Error);
+                        return;
+                    }
+                }
+
                 if (_isWaitForAsyncComplete)
                 {
-                    Result = AssetBundle.LoadFromFile(filePath);
+                    if (_bundle.Encrypted)
+                    {
+                        Result = _fileSystem.LoadEncryptedAssetBundle(_bundle);
+                    }
+                    else
+                    {
+                        string filePath = _fileSystem.GetBuildinFileLoadPath(_bundle);
+                        Result = AssetBundle.LoadFromFile(filePath);
+                    }
                 }
                 else
                 {
-                    _createRequest = AssetBundle.LoadFromFileAsync(filePath);
+                    if (_bundle.Encrypted)
+                    {
+                        _createRequest = _fileSystem.LoadEncryptedAssetBundleAsync(_bundle);
+                    }
+                    else
+                    {
+                        string filePath = _fileSystem.GetBuildinFileLoadPath(_bundle);
+                        _createRequest = AssetBundle.LoadFromFileAsync(filePath);
+                    }
                 }
-                _steps = ESteps.CheckLoadBuildinResult;
+
+                _steps = ESteps.CheckResult;
             }
 
-            if (_steps == ESteps.CheckLoadBuildinResult)
+            if (_steps == ESteps.CheckResult)
             {
                 if (_createRequest != null)
                 {
@@ -75,12 +103,22 @@ namespace YooAsset
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Succeed;
+                    return;
+                }
+
+                if (_bundle.Encrypted)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"Failed to load encrypted buildin asset bundle file : {_bundle.BundleName}";
+                    YooLogger.Error(Error);
                 }
                 else
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
                     Error = $"Failed to load buildin asset bundle file : {_bundle.BundleName}";
+                    YooLogger.Error(Error);
                 }
             }
         }
@@ -149,6 +187,7 @@ namespace YooAsset
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
                     Error = $"Can not found buildin raw bundle file : {filePath}";
+                    YooLogger.Error(Error);
                 }
             }
         }

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs

@@ -97,6 +97,11 @@ namespace YooAsset
         /// 自定义参数：断点续传下载器关注的错误码
         /// </summary>
         public List<long> ResumeDownloadResponseCodes { private set; get; } = null;
+
+        /// <summary>
+        ///  自定义参数：解密方法类
+        /// </summary>
+        public IDecryptionServices DecryptionServices { private set; get; }
         #endregion
 
 
@@ -200,38 +205,45 @@ namespace YooAsset
 
             if (_loadedStream.TryGetValue(bundle.BundleGUID, out Stream managedStream))
             {
-                managedStream.Close();
+                if (managedStream != null)
-                managedStream.Dispose();
+                {
+                    managedStream.Close();
+                    managedStream.Dispose();
+                }
                 _loadedStream.Remove(bundle.BundleGUID);
             }
         }
 
         public virtual void SetParameter(string name, object value)
         {
-            if (name == "REMOTE_SERVICES")
+            if (name == FileSystemParametersDefine.REMOTE_SERVICES)
             {
                 RemoteServices = (IRemoteServices)value;
             }
-            else if (name == "FILE_VERIFY_LEVEL")
+            else if (name == FileSystemParametersDefine.FILE_VERIFY_LEVEL)
             {
                 FileVerifyLevel = (EFileVerifyLevel)value;
             }
-            else if (name == "APPEND_FILE_EXTENSION")
+            else if (name == FileSystemParametersDefine.APPEND_FILE_EXTENSION)
             {
                 AppendFileExtension = (bool)value;
             }
-            else if (name == "RAW_FILE_BUILD_PIPELINE")
+            else if (name == FileSystemParametersDefine.RAW_FILE_BUILD_PIPELINE)
             {
                 RawFileBuildPipeline = (bool)value;
             }
-            else if (name == "RESUME_DOWNLOAD_MINMUM_SIZE")
+            else if (name == FileSystemParametersDefine.RESUME_DOWNLOAD_MINMUM_SIZE)
             {
                 ResumeDownloadMinimumSize = (long)value;
             }
-            else if (name == "RESUME_DOWNLOAD_RESPONSE_CODES")
+            else if (name == FileSystemParametersDefine.RESUME_DOWNLOAD_RESPONSE_CODES)
             {
                 ResumeDownloadResponseCodes = (List<long>)value;
             }
+            else if (name == FileSystemParametersDefine.DECRYPTION_SERVICES)
+            {
+                DecryptionServices = (IDecryptionServices)value;
+            }
             else
             {
                 YooLogger.Warning($"Invalid parameter : {name}");
@@ -308,16 +320,56 @@ namespace YooAsset
             if (Exists(bundle) == false)
                 return null;
 
-            string filePath = GetCacheFileLoadPath(bundle);
+            if (bundle.Encrypted)
-            return FileUtility.ReadAllBytes(filePath);
+            {
+                if (DecryptionServices == null)
+                {
+                    YooLogger.Error($"The {nameof(IDecryptionServices)} is null !");
+                    return null;
+                }
+
+                string filePath = GetCacheFileLoadPath(bundle);
+                var fileInfo = new DecryptFileInfo()
+                {
+                    BundleName = bundle.BundleName,
+                    FileLoadCRC = bundle.UnityCRC,
+                    FileLoadPath = filePath,
+                };
+                return DecryptionServices.ReadFileData(fileInfo);
+            }
+            else
+            {
+                string filePath = GetCacheFileLoadPath(bundle);
+                return FileUtility.ReadAllBytes(filePath);
+            }
         }
         public virtual string ReadFileText(PackageBundle bundle)
         {
             if (Exists(bundle) == false)
                 return null;
 
-            string filePath = GetCacheFileLoadPath(bundle);
+            if (bundle.Encrypted)
-            return FileUtility.ReadAllText(filePath);
+            {
+                if (DecryptionServices == null)
+                {
+                    YooLogger.Error($"The {nameof(IDecryptionServices)} is null !");
+                    return null;
+                }
+
+                string filePath = GetCacheFileLoadPath(bundle);
+                var fileInfo = new DecryptFileInfo()
+                {
+                    BundleName = bundle.BundleName,
+                    FileLoadCRC = bundle.UnityCRC,
+                    FileLoadPath = filePath,
+                };
+                return DecryptionServices.ReadFileText(fileInfo);
+            }
+            else
+            {
+                string filePath = GetCacheFileLoadPath(bundle);
+                return FileUtility.ReadAllText(filePath);
+            }
         }
 
         #region 内部方法
@@ -528,6 +580,42 @@ namespace YooAsset
         {
             return _wrappers.Keys.ToList();
         }
+
+        /// <summary>
+        /// 加载加密资源文件
+        /// </summary>
+        public AssetBundle LoadEncryptedAssetBundle(PackageBundle bundle)
+        {
+            string filePath = GetCacheFileLoadPath(bundle);
+            var fileInfo = new DecryptFileInfo()
+            {
+                BundleName = bundle.BundleName,
+                FileLoadCRC = bundle.UnityCRC,
+                FileLoadPath = filePath,
+            };
+
+            var assetBundle = DecryptionServices.LoadAssetBundle(fileInfo, out var managedStream);
+            _loadedStream.Add(bundle.BundleGUID, managedStream);
+            return assetBundle;
+        }
+
+        /// <summary>
+        /// 加载加密资源文件
+        /// </summary>
+        public AssetBundleCreateRequest LoadEncryptedAssetBundleAsync(PackageBundle bundle)
+        {
+            string filePath = GetCacheFileLoadPath(bundle);
+            var fileInfo = new DecryptFileInfo()
+            {
+                BundleName = bundle.BundleName,
+                FileLoadCRC = bundle.UnityCRC,
+                FileLoadPath = filePath,
+            };
+
+            var createRequest = DecryptionServices.LoadAssetBundleAsync(fileInfo, out var managedStream);
+            _loadedStream.Add(bundle.BundleGUID, managedStream);
+            return createRequest;
+        }
         #endregion
     }
 }

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSDownloadFileOperation.cs

@@ -250,17 +250,17 @@ namespace YooAsset
                 if (File.Exists(_tempFilePath))
                 {
                     FileInfo fileInfo = new FileInfo(_tempFilePath);
-                    fileBeginLength = fileInfo.Length;
+                    if (fileInfo.Length >= Bundle.FileSize)
-                    _fileOriginLength = fileBeginLength;
+                    {
-                    DownloadedBytes = _fileOriginLength;
+                        // 删除临时文件
-                }
-
-                // 检测下载起始位置
-                if (fileBeginLength >= Bundle.FileSize)
-                {
-                    // 删除临时文件
-                    if (File.Exists(_tempFilePath))
                         File.Delete(_tempFilePath);
+                    }
+                    else
+                    {
+                        fileBeginLength = fileInfo.Length;
+                        _fileOriginLength = fileBeginLength;
+                        DownloadedBytes = _fileOriginLength;
+                    }
                 }
 
                 // 创建下载器

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs

@@ -78,15 +78,43 @@ namespace YooAsset
 
             if (_steps == ESteps.LoadAssetBundle)
             {
-                string filePath = _fileSystem.GetCacheFileLoadPath(_bundle);
+                if (_bundle.Encrypted)
+                {
+                    if (_fileSystem.DecryptionServices == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"The {nameof(IDecryptionServices)} is null !";
+                        YooLogger.Error(Error);
+                        return;
+                    }
+                }
+
                 if (_isWaitForAsyncComplete)
                 {
-                    Result = AssetBundle.LoadFromFile(filePath);
+                    if (_bundle.Encrypted)
+                    {
+                        Result = _fileSystem.LoadEncryptedAssetBundle(_bundle);
+                    }
+                    else
+                    {
+                        string filePath = _fileSystem.GetCacheFileLoadPath(_bundle);
+                        Result = AssetBundle.LoadFromFile(filePath);
+                    }
                 }
                 else
                 {
-                    _createRequest = AssetBundle.LoadFromFileAsync(filePath);
+                    if (_bundle.Encrypted)
+                    {
+                        _createRequest = _fileSystem.LoadEncryptedAssetBundleAsync(_bundle);
+                    }
+                    else
+                    {
+                        string filePath = _fileSystem.GetCacheFileLoadPath(_bundle);
+                        _createRequest = AssetBundle.LoadFromFileAsync(filePath);
+                    }
                 }
+
                 _steps = ESteps.CheckResult;
             }
 
@@ -112,51 +140,59 @@ namespace YooAsset
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Succeed;
+                    return;
                 }
-                else
+
+                // 注意：当缓存文件的校验等级为Low的时候，并不能保证缓存文件的完整性。
+                // 说明：在AssetBundle文件加载失败的情况下，我们需要重新验证文件的完整性！
+                EFileVerifyResult verifyResult = _fileSystem.VerifyCacheFile(_bundle);
+                if (verifyResult == EFileVerifyResult.Succeed)
                 {
-                    // 注意：当缓存文件的校验等级为Low的时候，并不能保证缓存文件的完整性。
+                    if (_bundle.Encrypted)
-                    // 说明：在AssetBundle文件加载失败的情况下，我们需要重新验证文件的完整性！
-                    EFileVerifyResult verifyResult = _fileSystem.VerifyCacheFile(_bundle);
-                    if (verifyResult == EFileVerifyResult.Succeed)
                     {
-                        // 注意：在安卓移动平台，华为和三星真机上有极小概率加载资源包失败。
+                        _steps = ESteps.Done;
-                        // 说明：大多数情况在首次安装下载资源到沙盒内，游戏过程中切换到后台再回到游戏内有很大概率触发！
+                        Status = EOperationStatus.Failed;
-                        string filePath = _fileSystem.GetCacheFileLoadPath(_bundle);
+                        Error = $"Failed to load encrypted asset bundle file : {_bundle.BundleName}";
-                        byte[] fileData = FileUtility.ReadAllBytes(filePath);
+                        YooLogger.Error(Error);
-                        if (fileData != null && fileData.Length > 0)
+                        return;
+                    }
+
+                    // 注意：在安卓移动平台，华为和三星真机上有极小概率加载资源包失败。
+                    // 说明：大多数情况在首次安装下载资源到沙盒内，游戏过程中切换到后台再回到游戏内有很大概率触发！
+                    string filePath = _fileSystem.GetCacheFileLoadPath(_bundle);
+                    byte[] fileData = FileUtility.ReadAllBytes(filePath);
+                    if (fileData != null && fileData.Length > 0)
+                    {
+                        Result = AssetBundle.LoadFromMemory(fileData);
+                        if (Result == null)
                         {
-                            Result = AssetBundle.LoadFromMemory(fileData);
+                            _steps = ESteps.Done;
-                            if (Result == null)
+                            Status = EOperationStatus.Failed;
-                            {
+                            Error = $"Failed to load asset bundle from memory : {_bundle.BundleName}";
-                                _steps = ESteps.Done;
+                            YooLogger.Error(Error);
-                                Status = EOperationStatus.Failed;
-                                Error = $"Failed to load assetBundle from memory : {_bundle.BundleName}";
-                                YooLogger.Error(Error);
-                            }
-                            else
-                            {
-                                _steps = ESteps.Done;
-                                Status = EOperationStatus.Succeed;
-                            }
                         }
                         else
                         {
                             _steps = ESteps.Done;
-                            Status = EOperationStatus.Failed;
+                            Status = EOperationStatus.Succeed;
-                            Error = $"Failed to read assetBundle file bytes : {_bundle.BundleName}";
-                            YooLogger.Error(Error);
                         }
                     }
                     else
                     {
                         _steps = ESteps.Done;
-                        _fileSystem.DeleteCacheFile(_bundle.BundleGUID);
                         Status = EOperationStatus.Failed;
-                        Error = $"Find corrupted file and delete the file : {_bundle.BundleName}";
+                        Error = $"Failed to read asset bundle file bytes : {_bundle.BundleName}";
                         YooLogger.Error(Error);
                     }
                 }
+                else
+                {
+                    _steps = ESteps.Done;
+                    _fileSystem.DeleteCacheFile(_bundle.BundleGUID);
+                    Status = EOperationStatus.Failed;
+                    Error = $"Find corrupted asset bundle file and delete : {_bundle.BundleName}";
+                    YooLogger.Error(Error);
+                }
             }
         }
         internal override void InternalWaitForAsyncComplete()
@@ -272,6 +308,7 @@ namespace YooAsset
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
                     Error = $"Can not found cache raw bundle file : {filePath}";
+                    YooLogger.Error(Error);
                 }
             }
         }

Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/DefaultWebFileSystem.cs

@@ -114,7 +114,7 @@ namespace YooAsset
 
         public virtual void SetParameter(string name, object value)
         {
-            if (name == "DISABLE_UNITY_WEB_CACHE")
+            if (name == FileSystemParametersDefine.DISABLE_UNITY_WEB_CACHE)
             {
                 DisableUnityWebCache = (bool)value;
             }

Assets/YooAsset/Runtime/FileSystem/FileSystemParametersDefine.cs

@@ -0,0 +1,15 @@
+
+namespace YooAsset
+{
+    internal class FileSystemParametersDefine
+    {
+        public const string FILE_VERIFY_LEVEL = "FILE_VERIFY_LEVEL";
+        public const string REMOTE_SERVICES = "REMOTE_SERVICES";
+        public const string DECRYPTION_SERVICES = "DECRYPTION_SERVICES";
+        public const string APPEND_FILE_EXTENSION = "APPEND_FILE_EXTENSION";
+        public const string RAW_FILE_BUILD_PIPELINE = "RAW_FILE_BUILD_PIPELINE";
+        public const string DISABLE_UNITY_WEB_CACHE = "DISABLE_UNITY_WEB_CACHE";
+        public const string RESUME_DOWNLOAD_MINMUM_SIZE = "RESUME_DOWNLOAD_MINMUM_SIZE";
+        public const string RESUME_DOWNLOAD_RESPONSE_CODES = "RESUME_DOWNLOAD_RESPONSE_CODES";
+    }
+}

Assets/YooAsset/Runtime/FileSystem/FileSystemParametersDefine.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 6b83a734e8baddb46aa731ee31fe988d
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/InitializeParameters.cs

@@ -99,28 +99,32 @@ namespace YooAsset
         /// <summary>
         /// 创建默认的内置文件系统参数
         /// </summary>
+        /// <param name="decryptionServices">加密文件解密服务类</param>
         /// <param name="verifyLevel">缓存文件的校验等级</param>
         /// <param name="rootDirectory">内置文件的根路径</param>
-        public static FileSystemParameters CreateDefaultBuildinFileSystemParameters(EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
+        public static FileSystemParameters CreateDefaultBuildinFileSystemParameters(IDecryptionServices decryptionServices = null, EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
         {
             string fileSystemClass = typeof(DefaultBuildinFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, rootDirectory);
-            fileSystemParams.AddParameter("FILE_VERIFY_LEVEL", verifyLevel);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.DECRYPTION_SERVICES, decryptionServices);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.FILE_VERIFY_LEVEL, verifyLevel);
             return fileSystemParams;
         }
 
         /// <summary>
         /// 创建默认的内置文件系统参数（原生文件）
         /// </summary>
+        /// <param name="decryptionServices">加密文件解密服务类</param>
         /// <param name="verifyLevel">缓存文件的校验等级</param>
         /// <param name="rootDirectory">内置文件的根路径</param>
-        public static FileSystemParameters CreateDefaultBuildinRawFileSystemParameters(EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
+        public static FileSystemParameters CreateDefaultBuildinRawFileSystemParameters(IDecryptionServices decryptionServices = null, EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
         {
             string fileSystemClass = typeof(DefaultBuildinFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, rootDirectory);
-            fileSystemParams.AddParameter("FILE_VERIFY_LEVEL", verifyLevel);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.DECRYPTION_SERVICES, decryptionServices);
-            fileSystemParams.AddParameter("APPEND_FILE_EXTENSION", true);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.FILE_VERIFY_LEVEL, verifyLevel);
-            fileSystemParams.AddParameter("RAW_FILE_BUILD_PIPELINE", true);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.APPEND_FILE_EXTENSION, true);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.RAW_FILE_BUILD_PIPELINE, true);
             return fileSystemParams;
         }
 
@@ -128,14 +132,16 @@ namespace YooAsset
         /// 创建默认的缓存文件系统参数
         /// </summary>
         /// <param name="remoteServices">远端资源地址查询服务类</param>
+        /// <param name="decryptionServices">加密文件解密服务类</param>
         /// <param name="verifyLevel">缓存文件的校验等级</param>
         /// <param name="rootDirectory">文件系统的根目录</param>
-        public static FileSystemParameters CreateDefaultCacheFileSystemParameters(IRemoteServices remoteServices, EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
+        public static FileSystemParameters CreateDefaultCacheFileSystemParameters(IRemoteServices remoteServices, IDecryptionServices decryptionServices = null, EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
         {
             string fileSystemClass = typeof(DefaultCacheFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, rootDirectory);
-            fileSystemParams.AddParameter("REMOTE_SERVICES", remoteServices);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.REMOTE_SERVICES, remoteServices);
-            fileSystemParams.AddParameter("FILE_VERIFY_LEVEL", verifyLevel);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.DECRYPTION_SERVICES, decryptionServices);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.FILE_VERIFY_LEVEL, verifyLevel);
             return fileSystemParams;
         }
 
@@ -143,16 +149,18 @@ namespace YooAsset
         /// 创建默认的缓存文件系统参数（原生文件）
         /// </summary>
         /// <param name="remoteServices">远端资源地址查询服务类</param>
+        /// <param name="decryptionServices">加密文件解密服务类</param>
         /// <param name="verifyLevel">缓存文件的校验等级</param>
         /// <param name="rootDirectory">文件系统的根目录</param>
-        public static FileSystemParameters CreateDefaultCacheRawFileSystemParameters(IRemoteServices remoteServices, EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
+        public static FileSystemParameters CreateDefaultCacheRawFileSystemParameters(IRemoteServices remoteServices, IDecryptionServices decryptionServices = null, EFileVerifyLevel verifyLevel = EFileVerifyLevel.Middle, string rootDirectory = null)
         {
             string fileSystemClass = typeof(DefaultCacheFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, rootDirectory);
-            fileSystemParams.AddParameter("REMOTE_SERVICES", remoteServices);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.REMOTE_SERVICES, remoteServices);
-            fileSystemParams.AddParameter("FILE_VERIFY_LEVEL", verifyLevel);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.DECRYPTION_SERVICES, decryptionServices);
-            fileSystemParams.AddParameter("APPEND_FILE_EXTENSION", true);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.FILE_VERIFY_LEVEL, verifyLevel);
-            fileSystemParams.AddParameter("RAW_FILE_BUILD_PIPELINE", true);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.APPEND_FILE_EXTENSION, true);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.RAW_FILE_BUILD_PIPELINE, true);
             return fileSystemParams;
         }
 
@@ -164,7 +172,7 @@ namespace YooAsset
         {
             string fileSystemClass = typeof(DefaultWebFileSystem).FullName;
             var fileSystemParams = new FileSystemParameters(fileSystemClass, null);
-            fileSystemParams.AddParameter("DISABLE_UNITY_WEB_CACHE", disableUnityWebCache);
+            fileSystemParams.AddParameter(FileSystemParametersDefine.DISABLE_UNITY_WEB_CACHE, disableUnityWebCache);
             return fileSystemParams;
         }
     }

Assets/YooAsset/Runtime/OperationSystem/AsyncOperationBase.cs

@@ -152,6 +152,14 @@ namespace YooAsset
             return IsDone;
         }
 
+        /// <summary>
+        /// 清空完成回调
+        /// </summary>
+        protected void ClearCompletedCallback()
+        {
+            _callback = null;
+        }
+
         /// <summary>
         /// 等待异步执行完毕
         /// </summary>

Assets/YooAsset/Runtime/OperationSystem/GameAsyncOperation.cs

@@ -15,6 +15,10 @@ namespace YooAsset
         {
             OnAbort();
         }
+        internal override void InternalWaitForAsyncComplete()
+        {
+            OnWaitForAsyncComplete();
+        }
 
         /// <summary>
         /// 异步操作开始
@@ -31,6 +35,11 @@ namespace YooAsset
         /// </summary>
         protected abstract void OnAbort();
 
+        /// <summary>
+        /// 异步等待完成
+        /// </summary>
+        protected virtual void OnWaitForAsyncComplete() { }
+
         /// <summary>
         /// 异步操作系统是否繁忙
         /// </summary>

Assets/YooAsset/Runtime/ResourceManager/Handle/SceneHandle.cs

@@ -23,7 +23,7 @@ namespace YooAsset
             add
             {
                 if (IsValidWithWarning == false)
-                    throw new System.Exception($"{nameof(SceneHandle)} is invalid");
+                    throw new System.Exception($"{nameof(SceneHandle)} is invalid !");
                 if (Provider.IsDone)
                     value.Invoke(this);
                 else
@@ -32,7 +32,7 @@ namespace YooAsset
             remove
             {
                 if (IsValidWithWarning == false)
-                    throw new System.Exception($"{nameof(SceneHandle)} is invalid");
+                    throw new System.Exception($"{nameof(SceneHandle)} is invalid !");
                 _callback -= value;
             }
         }
@@ -168,13 +168,12 @@ namespace YooAsset
             }
 
             // 卸载子场景
+            // 注意：如果场景正在加载过程，必须等待加载完成后才可以卸载该场景。
             {
                 var operation = new UnloadSceneOperation(Provider);
                 OperationSystem.StartOperation(packageName, operation);
                 return operation;
             }
         }
-
-
     }
 }

Assets/YooAsset/Runtime/ResourceManager/Operation/UnloadSceneOperation.cs

@@ -14,14 +14,13 @@ namespace YooAsset
             CheckError,
             PrepareDone,
             UnLoadScene,
-            Checking,
             Done,
         }
 
         private ESteps _steps = ESteps.None;
         private readonly string _error;
         private readonly ProviderOperation _provider;
-        private AsyncOperation _asyncOp;
+        private AsyncOperation _asyncOp = null;
 
         internal UnloadSceneOperation(string error)
         {
@@ -96,16 +95,16 @@ namespace YooAsset
 
             if (_steps == ESteps.UnLoadScene)
             {
-                _asyncOp = SceneManager.UnloadSceneAsync(_provider.SceneObject);
+                if (_asyncOp == null)
-                _provider.ResourceMgr.UnloadSubScene(_provider.SceneName);
+                {
-                _steps = ESteps.Checking;
+                    _asyncOp = SceneManager.UnloadSceneAsync(_provider.SceneObject);
-            }
+                    _provider.ResourceMgr.UnloadSubScene(_provider.SceneName);
+                }
 
-            if (_steps == ESteps.Checking)
-            {
                 Progress = _asyncOp.progress;
                 if (_asyncOp.isDone == false)
                     return;
+
                 _provider.ResourceMgr.TryUnloadUnusedAsset(_provider.MainAssetInfo);
                 _steps = ESteps.Done;
                 Status = EOperationStatus.Succeed;

Assets/YooAsset/Runtime/ResourceManager/Provider/BundledSceneProvider.cs

@@ -8,13 +8,24 @@ namespace YooAsset
 {
     internal sealed class BundledSceneProvider : ProviderOperation
     {
-        public readonly LoadSceneMode SceneMode;
+        public readonly LoadSceneParameters LoadSceneParams;
         private AsyncOperation _asyncOperation;
         private bool _suspendLoadMode;
 
-        public BundledSceneProvider(ResourceManager manager, string providerGUID, AssetInfo assetInfo, LoadSceneMode sceneMode, bool suspendLoad) : base(manager, providerGUID, assetInfo)
+        /// <summary>
+        /// 场景加载模式
+        /// </summary>
+        public LoadSceneMode SceneMode
         {
-            SceneMode = sceneMode;
+            get
+            {
+                return LoadSceneParams.loadSceneMode;
+            }
+        }
+
+        public BundledSceneProvider(ResourceManager manager, string providerGUID, AssetInfo assetInfo, LoadSceneParameters loadSceneParams, bool suspendLoad) : base(manager, providerGUID, assetInfo)
+        {
+            LoadSceneParams = loadSceneParams;
             SceneName = Path.GetFileNameWithoutExtension(assetInfo.AssetPath);
             _suspendLoadMode = suspendLoad;
         }
@@ -61,15 +72,14 @@ namespace YooAsset
                 if (IsWaitForAsyncComplete)
                 {
                     // 注意：场景同步加载方法不会立即加载场景，而是在下一帧加载。
-                    LoadSceneParameters parameters = new LoadSceneParameters(SceneMode);
+                    SceneObject = SceneManager.LoadScene(MainAssetInfo.AssetPath, LoadSceneParams);
-                    SceneObject = SceneManager.LoadScene(MainAssetInfo.AssetPath, parameters);
                     _steps = ESteps.Checking;
                 }
                 else
                 {
                     // 注意：如果场景不存在异步加载方法返回NULL
                     // 注意：即使是异步加载也要在当帧获取到场景对象
-                    _asyncOperation = SceneManager.LoadSceneAsync(MainAssetInfo.AssetPath, SceneMode);
+                    _asyncOperation = SceneManager.LoadSceneAsync(MainAssetInfo.AssetPath, LoadSceneParams);
                     if (_asyncOperation != null)
                     {
                         _asyncOperation.allowSceneActivation = !_suspendLoadMode;

Assets/YooAsset/Runtime/ResourceManager/Provider/DatabaseSceneProvider.cs

@@ -8,13 +8,24 @@ namespace YooAsset
 {
     internal sealed class DatabaseSceneProvider : ProviderOperation
     {
-        public readonly LoadSceneMode SceneMode;
+        public readonly LoadSceneParameters LoadSceneParams;    
-        private bool _suspendLoadMode;
         private AsyncOperation _asyncOperation;
+        private bool _suspendLoadMode;
 
-        public DatabaseSceneProvider(ResourceManager manager, string providerGUID, AssetInfo assetInfo, LoadSceneMode sceneMode, bool suspendLoad) : base(manager, providerGUID, assetInfo)
+        /// <summary>
+        /// 场景加载模式
+        /// </summary>
+        public LoadSceneMode SceneMode
         {
-            SceneMode = sceneMode;
+            get
+            {
+                return LoadSceneParams.loadSceneMode;
+            }
+        }
+
+        public DatabaseSceneProvider(ResourceManager manager, string providerGUID, AssetInfo assetInfo, LoadSceneParameters loadSceneParams, bool suspendLoad) : base(manager, providerGUID, assetInfo)
+        {
+            LoadSceneParams = loadSceneParams;
             SceneName = Path.GetFileNameWithoutExtension(assetInfo.AssetPath);
             _suspendLoadMode = suspendLoad;
         }
@@ -53,14 +64,12 @@ namespace YooAsset
             {
                 if (IsWaitForAsyncComplete)
                 {
-                    LoadSceneParameters loadSceneParameters = new LoadSceneParameters(SceneMode);
+                    SceneObject = UnityEditor.SceneManagement.EditorSceneManager.LoadSceneInPlayMode(MainAssetInfo.AssetPath, LoadSceneParams);
-                    SceneObject = UnityEditor.SceneManagement.EditorSceneManager.LoadSceneInPlayMode(MainAssetInfo.AssetPath, loadSceneParameters);
                     _steps = ESteps.Checking;
                 }
                 else
                 {
-                    LoadSceneParameters loadSceneParameters = new LoadSceneParameters(SceneMode);
+                    _asyncOperation = UnityEditor.SceneManagement.EditorSceneManager.LoadSceneAsyncInPlayMode(MainAssetInfo.AssetPath, LoadSceneParams);
-                    _asyncOperation = UnityEditor.SceneManagement.EditorSceneManager.LoadSceneAsyncInPlayMode(MainAssetInfo.AssetPath, loadSceneParameters);
                     if (_asyncOperation != null)
                     {
                         _asyncOperation.allowSceneActivation = !_suspendLoadMode;

Assets/YooAsset/Runtime/ResourceManager/ResourceManager.cs

@@ -86,7 +86,7 @@ namespace YooAsset
         /// 注意：返回的场景句柄是唯一的，每个场景句柄对应自己的场景提供者对象。
         /// 注意：业务逻辑层应该避免同时加载一个子场景。
         /// </summary>
-        public SceneHandle LoadSceneAsync(AssetInfo assetInfo, LoadSceneMode sceneMode, bool suspendLoad, uint priority)
+        public SceneHandle LoadSceneAsync(AssetInfo assetInfo, LoadSceneParameters loadSceneParams, bool suspendLoad, uint priority)
         {
             if (assetInfo.IsInvalid)
             {
@@ -97,7 +97,7 @@ namespace YooAsset
             }
 
             // 如果加载的是主场景，则卸载所有缓存的场景
-            if (sceneMode == LoadSceneMode.Single)
+            if (loadSceneParams.loadSceneMode == LoadSceneMode.Single)
             {
                 UnloadAllScene();
             }
@@ -107,9 +107,9 @@ namespace YooAsset
             ProviderOperation provider;
             {
                 if (_simulationOnEditor)
-                    provider = new DatabaseSceneProvider(this, providerGUID, assetInfo, sceneMode, suspendLoad);
+                    provider = new DatabaseSceneProvider(this, providerGUID, assetInfo, loadSceneParams, suspendLoad);
                 else
-                    provider = new BundledSceneProvider(this, providerGUID, assetInfo, sceneMode, suspendLoad);
+                    provider = new BundledSceneProvider(this, providerGUID, assetInfo, loadSceneParams, suspendLoad);
                 provider.InitSpawnDebugInfo();
                 _providerDic.Add(providerGUID, provider);
                 OperationSystem.StartOperation(PackageName, provider);

Assets/YooAsset/Runtime/ResourcePackage/Operation/ClearAllBundleFilesOperation.cs

@@ -45,6 +45,12 @@ namespace YooAsset
 
             if (_steps == ESteps.ClearFileSystemA)
             {
+                if (_fileSystemA == null)
+                {
+                    _steps = ESteps.ClearFileSystemB;
+                    return;
+                }
+
                 if (_clearAllBundleFilesOpA == null)
                     _clearAllBundleFilesOpA = _fileSystemA.ClearAllBundleFilesAsync();
 

Assets/YooAsset/Runtime/ResourcePackage/Operation/ClearUnusedBundleFilesOperation.cs

@@ -45,6 +45,12 @@ namespace YooAsset
 
             if (_steps == ESteps.ClearFileSystemA)
             {
+                if (_fileSystemA == null)
+                {
+                    _steps = ESteps.ClearFileSystemB;
+                    return;
+                }
+
                 if (_clearUnusedBundleFilesOpA == null)
                     _clearUnusedBundleFilesOpA = _fileSystemA.ClearUnusedBundleFilesAsync(_impl.ActiveManifest);
 

Assets/YooAsset/Runtime/ResourcePackage/Operation/DownloaderOperation.cs

@@ -130,7 +130,7 @@ namespace YooAsset
                 long downloadBytes = _cachedDownloadBytes;
                 foreach (var downloader in _downloaders)
                 {
-                    downloadBytes += (long)downloader.DownloadedBytes;
+                    downloadBytes += downloader.DownloadedBytes;
                     if (downloader.IsDone == false)
                         continue;
 
@@ -145,7 +145,7 @@ namespace YooAsset
                     // 下载成功
                     _removeList.Add(downloader);
                     _cachedDownloadCount++;
-                    _cachedDownloadBytes += (long)downloader.DownloadedBytes;
+                    _cachedDownloadBytes += downloader.DownloadedBytes;
                 }
 
                 // 移除已经完成的下载器（无论成功或失败）

Assets/YooAsset/Runtime/ResourcePackage/Operation/InitializationOperation.cs

@@ -201,14 +201,6 @@ namespace YooAsset
 
             if (_steps == ESteps.CreateFileSystem)
             {
-                if (_parameters.BuildinFileSystemParameters == null)
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                    Error = "Buildin file system parameters is null";
-                    return;
-                }
-
                 if (_parameters.CacheFileSystemParameters == null)
                 {
                     _steps = ESteps.Done;
@@ -217,6 +209,19 @@ namespace YooAsset
                     return;
                 }
 
+                if (_parameters.BuildinFileSystemParameters != null)
+                {
+                    _impl.BuildinFileSystem = PlayModeHelper.CreateFileSystem(_impl.PackageName, _parameters.BuildinFileSystemParameters);
+                    if (_impl.BuildinFileSystem == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = "Failed to create buildin file system";
+                        return;
+                    }
+                    return;
+                }
+
                 if (_parameters.DeliveryFileSystemParameters != null)
                 {
                     _impl.DeliveryFileSystem = PlayModeHelper.CreateFileSystem(_impl.PackageName, _parameters.DeliveryFileSystemParameters);
@@ -229,15 +234,6 @@ namespace YooAsset
                     }
                 }
 
-                _impl.BuildinFileSystem = PlayModeHelper.CreateFileSystem(_impl.PackageName, _parameters.BuildinFileSystemParameters);
-                if (_impl.BuildinFileSystem == null)
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                    Error = "Failed to create buildin file system";
-                    return;
-                }
-
                 _impl.CacheFileSystem = PlayModeHelper.CreateFileSystem(_impl.PackageName, _parameters.CacheFileSystemParameters);
                 if (_impl.CacheFileSystem == null)
                 {
@@ -252,6 +248,13 @@ namespace YooAsset
 
             if (_steps == ESteps.InitBuildinFileSystem)
             {
+                // 注意：内置文件系统可以为空
+                if (_impl.BuildinFileSystem == null)
+                {
+                    _steps = ESteps.InitDeliveryFileSystem;
+                    return;
+                }
+
                 if (_initBuildinFileSystemOp == null)
                     _initBuildinFileSystemOp = _impl.BuildinFileSystem.InitializeFileSystemAsync();
 

Assets/YooAsset/Runtime/ResourcePackage/PlayMode/HostPlayModeImpl.cs

@@ -7,7 +7,7 @@ namespace YooAsset
     internal class HostPlayModeImpl : IPlayMode, IBundleQuery
     {
         public readonly string PackageName;
-        public IFileSystem BuildinFileSystem { set; get; }
+        public IFileSystem BuildinFileSystem { set; get; } //可以为空！
         public IFileSystem DeliveryFileSystem { set; get; } //可以为空！
         public IFileSystem CacheFileSystem { set; get; }
 
@@ -118,7 +118,7 @@ namespace YooAsset
             if (packageBundle == null)
                 throw new Exception("Should never get here !");
 
-            if (BuildinFileSystem.Belong(packageBundle))
+            if (BuildinFileSystem != null && BuildinFileSystem.Belong(packageBundle))
             {
                 BundleInfo bundleInfo = new BundleInfo(BuildinFileSystem, packageBundle);
                 return bundleInfo;

Assets/YooAsset/Runtime/ResourcePackage/ResourcePackage.cs

@@ -486,11 +486,12 @@ namespace YooAsset
         /// </summary>
         /// <param name="location">场景的定位地址</param>
         /// <param name="sceneMode">场景加载模式</param>
-        public SceneHandle LoadSceneSync(string location, LoadSceneMode sceneMode = LoadSceneMode.Single)
+        /// <param name="physicsMode">场景物理模式</param>
+        public SceneHandle LoadSceneSync(string location, LoadSceneMode sceneMode = LoadSceneMode.Single, LocalPhysicsMode physicsMode = LocalPhysicsMode.None)
         {
             DebugCheckInitialize();
             AssetInfo assetInfo = ConvertLocationToAssetInfo(location, null);
-            return LoadSceneInternal(assetInfo, true, sceneMode, false, 0);
+            return LoadSceneInternal(assetInfo, true, sceneMode, physicsMode, false, 0);
         }
 
         /// <summary>
@@ -498,10 +499,11 @@ namespace YooAsset
         /// </summary>
         /// <param name="assetInfo">场景的资源信息</param>
         /// <param name="sceneMode">场景加载模式</param>
-        public SceneHandle LoadSceneSync(AssetInfo assetInfo, LoadSceneMode sceneMode = LoadSceneMode.Single)
+        /// <param name="physicsMode">场景物理模式</param>
+        public SceneHandle LoadSceneSync(AssetInfo assetInfo, LoadSceneMode sceneMode = LoadSceneMode.Single, LocalPhysicsMode physicsMode = LocalPhysicsMode.None)
         {
             DebugCheckInitialize();
-            return LoadSceneInternal(assetInfo, true, sceneMode, false, 0);
+            return LoadSceneInternal(assetInfo, true, sceneMode, physicsMode, false, 0);
         }
 
         /// <summary>
@@ -509,13 +511,14 @@ namespace YooAsset
         /// </summary>
         /// <param name="location">场景的定位地址</param>
         /// <param name="sceneMode">场景加载模式</param>
+        /// <param name="physicsMode">场景物理模式</param>
         /// <param name="suspendLoad">场景加载到90%自动挂起</param>
         /// <param name="priority">加载的优先级</param>
-        public SceneHandle LoadSceneAsync(string location, LoadSceneMode sceneMode = LoadSceneMode.Single, bool suspendLoad = false, uint priority = 0)
+        public SceneHandle LoadSceneAsync(string location, LoadSceneMode sceneMode = LoadSceneMode.Single, LocalPhysicsMode physicsMode = LocalPhysicsMode.None, bool suspendLoad = false, uint priority = 0)
         {
             DebugCheckInitialize();
             AssetInfo assetInfo = ConvertLocationToAssetInfo(location, null);
-            return LoadSceneInternal(assetInfo, false, sceneMode, suspendLoad, priority);
+            return LoadSceneInternal(assetInfo, false, sceneMode, physicsMode, suspendLoad, priority);
         }
 
         /// <summary>
@@ -523,18 +526,20 @@ namespace YooAsset
         /// </summary>
         /// <param name="assetInfo">场景的资源信息</param>
         /// <param name="sceneMode">场景加载模式</param>
+        /// <param name="physicsMode">场景物理模式</param>
         /// <param name="suspendLoad">场景加载到90%自动挂起</param>
         /// <param name="priority">加载的优先级</param>
-        public SceneHandle LoadSceneAsync(AssetInfo assetInfo, LoadSceneMode sceneMode = LoadSceneMode.Single, bool suspendLoad = false, uint priority = 0)
+        public SceneHandle LoadSceneAsync(AssetInfo assetInfo, LoadSceneMode sceneMode = LoadSceneMode.Single, LocalPhysicsMode physicsMode = LocalPhysicsMode.None, bool suspendLoad = false, uint priority = 0)
         {
             DebugCheckInitialize();
-            return LoadSceneInternal(assetInfo, false, sceneMode, suspendLoad, priority);
+            return LoadSceneInternal(assetInfo, false, sceneMode, physicsMode, suspendLoad, priority);
         }
 
-        private SceneHandle LoadSceneInternal(AssetInfo assetInfo, bool waitForAsyncComplete, LoadSceneMode sceneMode, bool suspendLoad, uint priority)
+        private SceneHandle LoadSceneInternal(AssetInfo assetInfo, bool waitForAsyncComplete, LoadSceneMode sceneMode, LocalPhysicsMode physicsMode, bool suspendLoad, uint priority)
         {
             DebugCheckAssetLoadType(assetInfo.AssetType);
-            var handle = _resourceManager.LoadSceneAsync(assetInfo, sceneMode, suspendLoad, priority);
+            var loadSceneParams = new LoadSceneParameters(sceneMode, physicsMode);
+            var handle = _resourceManager.LoadSceneAsync(assetInfo, loadSceneParams, suspendLoad, priority);
             if (waitForAsyncComplete)
                 handle.WaitForAsyncComplete();
             return handle;

Assets/YooAsset/Runtime/Services/IDecryptionServices.cs

@@ -34,5 +34,15 @@ namespace YooAsset
         /// 注意：加载流对象在资源包对象释放的时候会自动释放
         /// </summary>
         AssetBundleCreateRequest LoadAssetBundleAsync(DecryptFileInfo fileInfo, out Stream managedStream);
+
+        /// <summary>
+        /// 获取解密的字节数据
+        /// </summary>
+        byte[] ReadFileData(DecryptFileInfo fileInfo);
+
+        /// <summary>
+        /// 获取解密的文本数据
+        /// </summary>
+        string ReadFileText(DecryptFileInfo fileInfo);
     }
-}
+}

Assets/YooAsset/Runtime/YooAssetsExtension.cs

@@ -161,10 +161,11 @@ namespace YooAsset
         /// </summary>
         /// <param name="location">场景的定位地址</param>
         /// <param name="sceneMode">场景加载模式</param>
-        public static SceneHandle LoadSceneSync(string location, LoadSceneMode sceneMode = LoadSceneMode.Single)
+        /// <param name="physicsMode">场景物理模式</param>
+        public static SceneHandle LoadSceneSync(string location, LoadSceneMode sceneMode = LoadSceneMode.Single, LocalPhysicsMode physicsMode = LocalPhysicsMode.None)
         {
             DebugCheckDefaultPackageValid();
-            return _defaultPackage.LoadSceneSync(location, sceneMode);
+            return _defaultPackage.LoadSceneSync(location, sceneMode, physicsMode);
         }
 
         /// <summary>
@@ -172,10 +173,11 @@ namespace YooAsset
         /// </summary>
         /// <param name="assetInfo">场景的资源信息</param>
         /// <param name="sceneMode">场景加载模式</param>
-        public static SceneHandle LoadSceneSync(AssetInfo assetInfo, LoadSceneMode sceneMode = LoadSceneMode.Single)
+        /// <param name="physicsMode">场景物理模式</param>
+        public static SceneHandle LoadSceneSync(AssetInfo assetInfo, LoadSceneMode sceneMode = LoadSceneMode.Single, LocalPhysicsMode physicsMode = LocalPhysicsMode.None)
         {
             DebugCheckDefaultPackageValid();
-            return _defaultPackage.LoadSceneSync(assetInfo, sceneMode);
+            return _defaultPackage.LoadSceneSync(assetInfo, sceneMode, physicsMode);
         }
 
         /// <summary>
@@ -183,12 +185,13 @@ namespace YooAsset
         /// </summary>
         /// <param name="location">场景的定位地址</param>
         /// <param name="sceneMode">场景加载模式</param>
+        /// <param name="physicsMode">场景物理模式</param>
         /// <param name="suspendLoad">场景加载到90%自动挂起</param>
         /// <param name="priority">优先级</param>
-        public static SceneHandle LoadSceneAsync(string location, LoadSceneMode sceneMode = LoadSceneMode.Single, bool suspendLoad = false, uint priority = 100)
+        public static SceneHandle LoadSceneAsync(string location, LoadSceneMode sceneMode = LoadSceneMode.Single, LocalPhysicsMode physicsMode = LocalPhysicsMode.None, bool suspendLoad = false, uint priority = 100)
         {
             DebugCheckDefaultPackageValid();
-            return _defaultPackage.LoadSceneAsync(location, sceneMode, suspendLoad, priority);
+            return _defaultPackage.LoadSceneAsync(location, sceneMode, physicsMode, suspendLoad, priority);
         }
 
         /// <summary>
@@ -196,12 +199,13 @@ namespace YooAsset
         /// </summary>
         /// <param name="assetInfo">场景的资源信息</param>
         /// <param name="sceneMode">场景加载模式</param>
+        /// <param name="physicsMode">场景物理模式</param>
         /// <param name="suspendLoad">场景加载到90%自动挂起</param>
         /// <param name="priority">优先级</param>
-        public static SceneHandle LoadSceneAsync(AssetInfo assetInfo, LoadSceneMode sceneMode = LoadSceneMode.Single, bool suspendLoad = false, uint priority = 100)
+        public static SceneHandle LoadSceneAsync(AssetInfo assetInfo, LoadSceneMode sceneMode = LoadSceneMode.Single, LocalPhysicsMode physicsMode = LocalPhysicsMode.None, bool suspendLoad = false, uint priority = 100)
         {
             DebugCheckDefaultPackageValid();
-            return _defaultPackage.LoadSceneAsync(assetInfo, sceneMode, suspendLoad, priority);
+            return _defaultPackage.LoadSceneAsync(assetInfo, sceneMode, physicsMode, suspendLoad, priority);
         }
         #endregion
 

Assets/YooAsset/Samples~/Space Shooter/GameScript/Runtime/PatchLogic/FsmNode/FsmInitializePackage.cs

@@ -172,6 +172,22 @@ internal class FsmInitializePackage : IStateNode
             return AssetBundle.LoadFromStreamAsync(bundleStream, fileInfo.FileLoadCRC, GetManagedReadBufferSize());
         }
 
+        /// <summary>
+        /// 获取解密的字节数据
+        /// </summary>
+        byte[] IDecryptionServices.ReadFileData(DecryptFileInfo fileInfo)
+        {
+            throw new System.NotImplementedException();
+        }
+
+        /// <summary>
+        /// 获取解密的文本数据
+        /// </summary>
+        string IDecryptionServices.ReadFileText(DecryptFileInfo fileInfo)
+        {
+            throw new System.NotImplementedException();
+        }
+
         private static uint GetManagedReadBufferSize()
         {
             return 1024;
@@ -203,6 +219,22 @@ internal class FsmInitializePackage : IStateNode
             return AssetBundle.LoadFromFileAsync(fileInfo.FileLoadPath, fileInfo.FileLoadCRC, GetFileOffset());
         }
 
+        /// <summary>
+        /// 获取解密的字节数据
+        /// </summary>
+        byte[] IDecryptionServices.ReadFileData(DecryptFileInfo fileInfo)
+        {
+            throw new System.NotImplementedException();
+        }
+
+        /// <summary>
+        /// 获取解密的文本数据
+        /// </summary>
+        string IDecryptionServices.ReadFileText(DecryptFileInfo fileInfo)
+        {
+            throw new System.NotImplementedException();
+        }
+
         private static ulong GetFileOffset()
         {
             return 32;

Assets/YooAsset/package.json

@@ -1,7 +1,7 @@
 {
     "name": "com.tuyoogame.yooasset",
     "displayName": "YooAsset",
-    "version": "2.2.2-preview",
+    "version": "2.2.3-preview",
     "unity": "2019.4",
     "description": "unity3d resources management system.",
     "author": {