93 lines
3.2 KiB
C#
93 lines
3.2 KiB
C#
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using UnityEngine.Events;
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namespace AssetManagement
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{
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// 2020.01.04 - Blastom：因为当前版本UnityWebRequest不支持下载https
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// 现在下载部分无法重用AsyncLoadHub
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// 快速解决方案是复制AsyncLoadHub 修改为支持BestHttp的流程
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// BestHttp当前没有找到 支持直接下载到文件流的方法，暂时只能下载到内存，然后转存到硬盘
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public class BundleDownloader
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{
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private AssetUpdateDownloader _downloader;
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private AssetPathHub pathHub;
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public string name { get; private set; }
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public int priority { get; set; }
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public string error { get; private set; }
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public AsyncLoadUnitState state { get; private set; }
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public AssetUpdateDownloaderTick.DownloadTimer downloadTimer { get; private set; }
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// 失败重试次数
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public int failCount { get; private set; }
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public event UnityAction<BundleDownloader> onComplete;
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// 等待时间结束
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public event UnityAction<BundleDownloader> onWaitUp;
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public void SetRetry(float time)
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{
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failCount++;
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state = AsyncLoadUnitState.Idle;
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downloadTimer = AssetUpdateDownloaderTick.instance.AddTimer(time, OnWaitFinish);
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}
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public void Init(AssetPathHub pathHub, string assetName, int priority)
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{
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name = assetName;
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this.priority = priority;
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this.pathHub = pathHub;
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}
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public void Load()
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{
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if (state != AsyncLoadUnitState.Loading)
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{
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error = string.Empty;
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var uriPath = pathHub.GetDownloadPath(name) + AssetConst.bundleVariant;
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_downloader =
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new AssetUpdateDownloader(uriPath, pathHub.GetPersistPath(name + AssetConst.bundleVariant))
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{onComplete = OnComplete};
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_downloader.Start(30f);
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}
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}
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// 取消下载，仅仅在关闭App时调用
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public void Dispose()
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{
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if (_downloader != null)
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{
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_downloader.onComplete = null;
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_downloader.Dispose();
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}
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_downloader = null;
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}
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public float GetProgress()
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{
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return _downloader == null ? 0f : _downloader.progress;
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}
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private void OnWaitFinish()
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{
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AssetUpdateDownloaderTick.instance.RemoveTimer(OnWaitFinish);
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downloadTimer = null;
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if (onWaitUp != null)
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onWaitUp(this);
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}
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private void OnComplete(AssetUpdateDownloader downloader)
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{
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if (downloader.error == AssetUpdateManager.AssetUpdateError.FileCreateError)
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error = string.Format("File Create Error: failed to create file for {0}!", name);
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else if (downloader.error != AssetUpdateManager.AssetUpdateError.Success)
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error = string.Format("Download Error: failed to download file for {0}!", name);
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else
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error = string.Empty;
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state = AsyncLoadUnitState.Done;
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if (onComplete != null)
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onComplete(this);
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}
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}
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}
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