Update AssetSystem

HostPlayMode支持WEBGL

Assets/YooAsset/Runtime/AssetSystem/Loader/AssetBundleFileLoader.cs

@@ -14,7 +14,7 @@ namespace YooAsset
 			Download,
 			CheckDownload,
 			LoadFile,
-			CheckFile,
+			CheckLoadFile,
 			Done,
 		}
 
@@ -23,7 +23,7 @@ namespace YooAsset
 		private bool _isWaitForAsyncComplete = false;
 		private bool _isShowWaitForAsyncError = false;
 		private DownloaderBase _downloader;
-		private AssetBundleCreateRequest _cacheRequest;
+		private AssetBundleCreateRequest _createRequest;
 
 
 		public AssetBundleFileLoader(BundleInfo bundleInfo) : base(bundleInfo)
@@ -115,34 +115,34 @@ namespace YooAsset
 					if (_isWaitForAsyncComplete)
 						CacheBundle = AssetBundle.LoadFromFile(_fileLoadPath, 0, offset);
 					else
-						_cacheRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath, 0, offset);
+						_createRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath, 0, offset);
 				}
 				else
 				{
 					if (_isWaitForAsyncComplete)
 						CacheBundle = AssetBundle.LoadFromFile(_fileLoadPath);
 					else
-						_cacheRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath);
+						_createRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath);
 				}
-				_steps = ESteps.CheckFile;
+				_steps = ESteps.CheckLoadFile;
 			}
 
 			// 4. 检测AssetBundle加载结果
-			if (_steps == ESteps.CheckFile)
+			if (_steps == ESteps.CheckLoadFile)
 			{
-				if (_cacheRequest != null)
+				if (_createRequest != null)
 				{
 					if (_isWaitForAsyncComplete)
 					{
 						// 强制挂起主线程（注意：该操作会很耗时）
 						YooLogger.Warning("Suspend the main thread to load unity bundle.");
-						CacheBundle = _cacheRequest.assetBundle;
+						CacheBundle = _createRequest.assetBundle;
 					}
 					else
 					{
-						if (_cacheRequest.isDone == false)
+						if (_createRequest.isDone == false)
 							return;
-						CacheBundle = _cacheRequest.assetBundle;
+						CacheBundle = _createRequest.assetBundle;
 					}
 				}
 

Assets/YooAsset/Runtime/AssetSystem/Loader/AssetBundleWebLoader.cs

@@ -1,4 +1,5 @@
 using System;
+using System.IO;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
@@ -11,19 +12,25 @@ namespace YooAsset
 		private enum ESteps
 		{
 			None = 0,
-			LoadFile,
+			Download,
-			CheckFile,
+			CheckDownload,
-			TryLoad,
+			LoadCacheFile,
+			CheckLoadCacheFile,
+			LoadWebFile,
+			CheckLoadWebFile,		
+			TryLoadWebFile,
 			Done,
 		}
 
 		private ESteps _steps = ESteps.None;
 		private float _tryTimer = 0;
-		private string _webURL;
+		private string _fileLoadPath;
 		private bool _isShowWaitForAsyncError = false;
+		private DownloaderBase _downloader;
 		private UnityWebRequest _webRequest;
+		private AssetBundleCreateRequest _createRequest;
 
-
+		
 		public AssetBundleWebLoader(BundleInfo bundleInfo) : base(bundleInfo)
 		{
 		}
@@ -40,18 +47,18 @@ namespace YooAsset
 			{
 				if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromRemote)
 				{
-					_steps = ESteps.LoadFile;
+					_steps = ESteps.Download;
-					_webURL = MainBundleInfo.RemoteMainURL;
+					_fileLoadPath = MainBundleInfo.Bundle.CachedFilePath;
-				}
-				else if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromCache)
-				{
-					_steps = ESteps.LoadFile;
-					_webURL = MainBundleInfo.Bundle.CachedFilePath;
 				}
 				else if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromStreaming)
 				{
-					_steps = ESteps.LoadFile;
+					_steps = ESteps.LoadWebFile;
-					_webURL = MainBundleInfo.Bundle.StreamingFilePath;
+					_fileLoadPath = MainBundleInfo.Bundle.StreamingFilePath;
+				}
+				else if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromCache)
+				{
+					_steps = ESteps.LoadCacheFile;
+					_fileLoadPath = MainBundleInfo.Bundle.CachedFilePath;
 				}
 				else
 				{
@@ -59,16 +66,112 @@ namespace YooAsset
 				}
 			}
 
-			// 1. 从服务器或缓存中获取AssetBundle文件
+			// 1. 从服务器下载
-			if (_steps == ESteps.LoadFile)
+			if (_steps == ESteps.Download)
 			{
-				_webRequest = UnityWebRequestAssetBundle.GetAssetBundle(_webURL, Hash128.Parse(MainBundleInfo.Bundle.FileHash));
+				int failedTryAgain = int.MaxValue;
-				_webRequest.SendWebRequest();
+				_downloader = DownloadSystem.BeginDownload(MainBundleInfo, failedTryAgain);
-				_steps = ESteps.CheckFile;
+				_steps = ESteps.CheckDownload;
 			}
 
-			// 2. 检测获取的AssetBundle文件
+			// 2. 检测服务器下载结果
-			if (_steps == ESteps.CheckFile)
+			if (_steps == ESteps.CheckDownload)
+			{
+				if (_downloader.IsDone() == false)
+					return;
+
+				if (_downloader.HasError())
+				{
+					_steps = ESteps.Done;
+					Status = EStatus.Failed;
+					LastError = _downloader.GetLastError();
+				}
+				else
+				{
+					_steps = ESteps.LoadCacheFile;
+				}
+			}
+
+			// 3. 从本地缓存里加载AssetBundle
+			if (_steps == ESteps.LoadCacheFile)
+			{
+#if UNITY_EDITOR
+				// 注意：Unity2017.4编辑器模式下，如果AssetBundle文件不存在会导致编辑器崩溃，这里做了预判。
+				if (System.IO.File.Exists(_fileLoadPath) == false)
+				{
+					_steps = ESteps.Done;
+					Status = EStatus.Failed;
+					LastError = $"Not found assetBundle file : {_fileLoadPath}";
+					YooLogger.Error(LastError);
+					return;
+				}
+#endif
+
+				// Load assetBundle file
+				if (MainBundleInfo.Bundle.IsEncrypted)
+				{
+					if (AssetSystem.DecryptionServices == null)
+						throw new Exception($"{nameof(AssetBundleFileLoader)} need {nameof(IDecryptionServices)} : {MainBundleInfo.Bundle.BundleName}");
+
+					DecryptionFileInfo fileInfo = new DecryptionFileInfo();
+					fileInfo.BundleName = MainBundleInfo.Bundle.BundleName;
+					fileInfo.FileHash = MainBundleInfo.Bundle.FileHash;
+					ulong offset = AssetSystem.DecryptionServices.GetFileOffset(fileInfo);
+					_createRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath, 0, offset);
+				}
+				else
+				{
+					_createRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath);
+				}
+				_steps = ESteps.CheckLoadCacheFile;
+			}
+
+			// 4. 检测AssetBundle加载结果
+			if (_steps == ESteps.CheckLoadCacheFile)
+			{
+				if (_createRequest.isDone == false)
+					return;
+
+				CacheBundle = _createRequest.assetBundle;
+				if (CacheBundle == null)
+				{
+					_steps = ESteps.Done;
+					Status = EStatus.Failed;
+					LastError = $"Failed to load AssetBundle file : {MainBundleInfo.Bundle.BundleName}";
+					YooLogger.Error(LastError);
+
+					// 注意：当缓存文件的校验等级为Low的时候，并不能保证缓存文件的完整性。
+					// 在AssetBundle文件加载失败的情况下，我们需要重新验证文件的完整性！
+					if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromCache)
+					{
+						string cacheLoadPath = MainBundleInfo.Bundle.CachedFilePath;
+						if (CacheSystem.VerifyBundle(MainBundleInfo.Bundle, EVerifyLevel.High) != EVerifyResult.Succeed)
+						{
+							if (File.Exists(cacheLoadPath))
+							{
+								YooLogger.Error($"Delete the invalid cache file : {cacheLoadPath}");
+								File.Delete(cacheLoadPath);
+							}
+						}
+					}
+				}
+				else
+				{
+					_steps = ESteps.Done;
+					Status = EStatus.Succeed;
+				}
+			}
+
+			// 5. 从WEB网站获取AssetBundle文件
+			if (_steps == ESteps.LoadWebFile)
+			{
+				_webRequest = UnityWebRequestAssetBundle.GetAssetBundle(_fileLoadPath, Hash128.Parse(MainBundleInfo.Bundle.FileHash));
+				_webRequest.SendWebRequest();
+				_steps = ESteps.CheckLoadWebFile;
+			}
+
+			// 6. 检测AssetBundle加载结果
+			if (_steps == ESteps.CheckLoadWebFile)
 			{
 				if (_webRequest.isDone == false)
 					return;
@@ -79,8 +182,8 @@ namespace YooAsset
 				if (_webRequest.isNetworkError || _webRequest.isHttpError)
 #endif
 				{
-					YooLogger.Warning($"Failed to get asset bundle form web : {_webURL} Error : {_webRequest.error}");
+					YooLogger.Warning($"Failed to get asset bundle from web : {_fileLoadPath} Error : {_webRequest.error}");
-					_steps = ESteps.TryLoad;
+					_steps = ESteps.TryLoadWebFile;
 					_tryTimer = 0;
 				}
 				else
@@ -101,15 +204,15 @@ namespace YooAsset
 				}
 			}
 
-			// 3. 如果获取失败，重新尝试
+			// 7. 如果获取失败，重新尝试
-			if (_steps == ESteps.TryLoad)
+			if (_steps == ESteps.TryLoadWebFile)
 			{
 				_tryTimer += Time.unscaledDeltaTime;
 				if (_tryTimer > 1f)
 				{
 					_webRequest.Dispose();
 					_webRequest = null;
-					_steps = ESteps.LoadFile;
+					_steps = ESteps.LoadWebFile;
 				}
 			}
 		}

Assets/YooAsset/Runtime/Utility/YooHelper.cs

@@ -57,7 +57,7 @@ namespace YooAsset
 		}
 
 		/// <summary>
-		/// 获取网络资源加载路径
+		/// 获取WWW加载本地资源的路径
 		/// </summary>
 		public static string ConvertToWWWPath(string path)
 		{