コード例 #1
0
        /// <summary>
        /// 轮询更新
        /// </summary>
        public override void Update()
        {
            if (_steps == ESteps.Done)
            {
                return;
            }

            if (_steps == ESteps.None)
            {
                if (MainBundleInfo.IsInvalid)
                {
                    _steps    = ESteps.Done;
                    Status    = EStatus.Failed;
                    LastError = $"The bundle info is invalid : {MainBundleInfo.BundleName}";
                    YooLogger.Error(LastError);
                    return;
                }

                if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromStreaming)
                {
                    _steps  = ESteps.LoadFile;
                    _webURL = MainBundleInfo.GetStreamingLoadPath();
                }
                else
                {
                    throw new System.NotImplementedException(MainBundleInfo.LoadMode.ToString());
                }
            }

            // 1. 从服务器或缓存中获取AssetBundle文件
            if (_steps == ESteps.LoadFile)
            {
                string hash = StringUtility.RemoveExtension(MainBundleInfo.Hash);
                _webRequest = UnityWebRequestAssetBundle.GetAssetBundle(_webURL, Hash128.Parse(hash));
                _webRequest.SendWebRequest();
                _steps = ESteps.CheckFile;
            }

            // 2. 检测获取的AssetBundle文件
            if (_steps == ESteps.CheckFile)
            {
                if (_webRequest.isDone == false)
                {
                    return;
                }

#if UNITY_2020_1_OR_NEWER
                if (_webRequest.result != UnityWebRequest.Result.Success)
#else
                if (_webRequest.isNetworkError || _webRequest.isHttpError)
#endif
                {
                    YooLogger.Warning($"Failed to get asset bundle form web : {_webURL} Error : {_webRequest.error}");
                    _steps    = ESteps.TryLoad;
                    _tryTimer = 0;
                }
                else
                {
                    CacheBundle = DownloadHandlerAssetBundle.GetContent(_webRequest);
                    if (CacheBundle == null)
                    {
                        _steps    = ESteps.Done;
                        Status    = EStatus.Failed;
                        LastError = $"AssetBundle file is invalid : {MainBundleInfo.BundleName}";
                        YooLogger.Error(LastError);
                    }
                    else
                    {
                        _steps = ESteps.Done;
                        Status = EStatus.Succeed;
                    }
                }
            }

            // 3. 如果获取失败,重新尝试
            if (_steps == ESteps.TryLoad)
            {
                _tryTimer += Time.unscaledDeltaTime;
                if (_tryTimer > 1f)
                {
                    _webRequest.Dispose();
                    _webRequest = null;
                    _steps      = ESteps.LoadFile;
                }
            }
        }
コード例 #2
0
        /// <summary>
        /// 轮询更新
        /// </summary>
        public override void Update()
        {
            if (_steps == ESteps.Done)
            {
                return;
            }

            if (_steps == ESteps.None)
            {
                if (MainBundleInfo.IsInvalid)
                {
                    _steps    = ESteps.Done;
                    Status    = EStatus.Failed;
                    LastError = $"The bundle info is invalid : {MainBundleInfo.BundleName}";
                    YooLogger.Error(LastError);
                    return;
                }

                if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromRemote)
                {
                    _steps        = ESteps.Download;
                    _fileLoadPath = MainBundleInfo.GetCacheLoadPath();
                }
                else if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromStreaming)
                {
                    _steps        = ESteps.LoadFile;
                    _fileLoadPath = MainBundleInfo.GetStreamingLoadPath();
                }
                else if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromCache)
                {
                    _steps        = ESteps.LoadFile;
                    _fileLoadPath = MainBundleInfo.GetCacheLoadPath();
                }
                else
                {
                    throw new System.NotImplementedException(MainBundleInfo.LoadMode.ToString());
                }
            }

            // 1. 从服务器下载
            if (_steps == ESteps.Download)
            {
                int failedTryAgain = int.MaxValue;
                _downloader = DownloadSystem.BeginDownload(MainBundleInfo, failedTryAgain);
                _steps      = ESteps.CheckDownload;
            }

            // 2. 检测服务器下载结果
            if (_steps == ESteps.CheckDownload)
            {
                if (_downloader.IsDone() == false)
                {
                    return;
                }

                if (_downloader.HasError())
                {
                    _steps    = ESteps.Done;
                    Status    = EStatus.Failed;
                    LastError = _downloader.GetLastError();
                }
                else
                {
                    _steps = ESteps.LoadFile;
                }
            }

            // 3. 加载AssetBundle
            if (_steps == ESteps.LoadFile)
            {
#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.IsEncrypted)
                {
                    if (AssetSystem.DecryptionServices == null)
                    {
                        throw new Exception($"{nameof(AssetBundleFileLoader)} need {nameof(IDecryptionServices)} : {MainBundleInfo.BundleName}");
                    }

                    ulong offset = AssetSystem.DecryptionServices.GetFileOffset();
                    if (_isWaitForAsyncComplete)
                    {
                        CacheBundle = AssetBundle.LoadFromFile(_fileLoadPath, 0, offset);
                    }
                    else
                    {
                        _cacheRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath, 0, offset);
                    }
                }
                else
                {
                    if (_isWaitForAsyncComplete)
                    {
                        CacheBundle = AssetBundle.LoadFromFile(_fileLoadPath);
                    }
                    else
                    {
                        _cacheRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath);
                    }
                }
                _steps = ESteps.CheckFile;
            }

            // 4. 检测AssetBundle加载结果
            if (_steps == ESteps.CheckFile)
            {
                if (_cacheRequest != 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;
                    }
                    else
                    {
                        if (_cacheRequest.isDone == false)
                        {
                            return;
                        }
                        CacheBundle = _cacheRequest.assetBundle;
                    }
                }

                // Check error
                if (CacheBundle == null)
                {
                    _steps    = ESteps.Done;
                    Status    = EStatus.Failed;
                    LastError = $"Failed to load assetBundle : {MainBundleInfo.BundleName}";
                    YooLogger.Error(LastError);
                }
                else
                {
                    _steps = ESteps.Done;
                    Status = EStatus.Succeed;
                }
            }
        }