101 lines
2.7 KiB
C#
101 lines
2.7 KiB
C#
#if UNITY_WEBGL && DOUYINMINIGAME
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using UnityEngine;
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using UnityEngine.Networking;
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using YooAsset;
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internal class TTFSDownloadFileOperation : DefaultDownloadFileOperation
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{
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private TiktokFileSystem _fileSystem;
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private ESteps _steps = ESteps.None;
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internal TTFSDownloadFileOperation(TiktokFileSystem fileSystem, PackageBundle bundle, DownloadParam param) : base(bundle, param)
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{
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_fileSystem = fileSystem;
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}
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internal override void InternalStart()
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{
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_steps = ESteps.CreateRequest;
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}
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internal override void InternalUpdate()
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{
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// 创建下载器
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if (_steps == ESteps.CreateRequest)
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{
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// 获取请求地址
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_requestURL = GetRequestURL();
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// 重置变量
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ResetRequestFiled();
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// 创建下载器
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CreateWebRequest();
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_steps = ESteps.CheckRequest;
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}
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// 检测下载结果
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if (_steps == ESteps.CheckRequest)
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{
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DownloadProgress = _webRequest.downloadProgress;
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DownloadedBytes = (long)_webRequest.downloadedBytes;
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Progress = DownloadProgress;
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if (_webRequest.isDone == false)
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{
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CheckRequestTimeout();
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return;
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}
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// 检查网络错误
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if (CheckRequestResult())
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Succeed;
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}
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else
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{
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_steps = ESteps.TryAgain;
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}
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// 注意：最终释放请求器
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DisposeWebRequest();
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}
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// 重新尝试下载
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if (_steps == ESteps.TryAgain)
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{
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if (FailedTryAgain <= 0)
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{
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Status = EOperationStatus.Failed;
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_steps = ESteps.Done;
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YooLogger.Error(Error);
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return;
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}
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_tryAgainTimer += Time.unscaledDeltaTime;
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if (_tryAgainTimer > 1f)
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{
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FailedTryAgain--;
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_steps = ESteps.CreateRequest;
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YooLogger.Warning(Error);
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}
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}
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}
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private void CreateWebRequest()
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{
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//TODO : 抖音小游戏没有找到预下载方法
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_webRequest = UnityWebRequest.Get(_requestURL);
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_webRequest.disposeDownloadHandlerOnDispose = true;
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_webRequest.SendWebRequest();
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}
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private void DisposeWebRequest()
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{
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if (_webRequest != null)
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{
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//注意：引擎底层会自动调用Abort方法
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_webRequest.Dispose();
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_webRequest = null;
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}
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}
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}
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#endif |