132 lines
2.5 KiB
C#
132 lines
2.5 KiB
C#
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namespace YooAsset
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{
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internal abstract class DownloaderBase
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{
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protected enum ESteps
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{
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None,
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CheckTempFile,
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WaitingCheckTempFile,
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PrepareDownload,
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CreateResumeDownloader,
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CreateGeneralDownloader,
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CheckDownload,
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VerifyTempFile,
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WaitingVerifyTempFile,
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CachingFile,
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TryAgain,
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Succeed,
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Failed,
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}
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protected readonly BundleInfo _bundleInfo;
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protected ESteps _steps = ESteps.None;
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protected int _timeout;
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protected int _failedTryAgain;
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protected int _requestCount;
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protected string _requestURL;
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protected string _lastError = string.Empty;
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protected long _lastCode = 0;
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protected float _downloadProgress = 0f;
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protected ulong _downloadedBytes = 0;
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/// <summary>
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/// 下载进度（0f~1f）
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/// </summary>
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public float DownloadProgress
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{
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get { return _downloadProgress; }
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}
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/// <summary>
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/// 已经下载的总字节数
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/// </summary>
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public ulong DownloadedBytes
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{
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get { return _downloadedBytes; }
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}
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public DownloaderBase(BundleInfo bundleInfo)
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{
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_bundleInfo = bundleInfo;
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}
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public void SendRequest(int failedTryAgain, int timeout)
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{
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if (_steps == ESteps.None)
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{
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_failedTryAgain = failedTryAgain;
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_timeout = timeout;
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_steps = ESteps.CheckTempFile;
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}
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}
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public abstract void Update();
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public abstract void Abort();
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/// <summary>
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/// 获取网络请求地址
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/// </summary>
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protected string GetRequestURL()
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{
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// 轮流返回请求地址
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_requestCount++;
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if (_requestCount % 2 == 0)
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return _bundleInfo.RemoteFallbackURL;
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else
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return _bundleInfo.RemoteMainURL;
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}
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/// <summary>
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/// 获取资源包信息
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/// </summary>
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public BundleInfo GetBundleInfo()
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{
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return _bundleInfo;
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}
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/// <summary>
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/// 检测下载器是否已经完成（无论成功或失败）
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/// </summary>
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public bool IsDone()
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{
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return _steps == ESteps.Succeed || _steps == ESteps.Failed;
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}
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/// <summary>
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/// 下载过程是否发生错误
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/// </summary>
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public bool HasError()
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{
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return _steps == ESteps.Failed;
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}
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/// <summary>
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/// 按照错误级别打印错误
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/// </summary>
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public void ReportError()
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{
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YooLogger.Error(GetLastError());
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}
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/// <summary>
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/// 按照警告级别打印错误
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/// </summary>
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public void ReportWarning()
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{
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YooLogger.Warning(GetLastError());
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}
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/// <summary>
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/// 获取最近发生的错误信息
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/// </summary>
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public string GetLastError()
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{
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return $"Failed to download : {_requestURL} Error : {_lastError} Code : {_lastCode}";
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}
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}
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} |