82 lines
2.2 KiB
Markdown
82 lines
2.2 KiB
Markdown
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# 资源更新
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**更新补丁清单**
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对于联机运行模式，在初始化资源系统之后，需要立刻更新资源清单。
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**注意**：在初始化资源系统的时候，可以选择是否忽略资源版本号，这会影响到我们的更新步骤。
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- 没有忽略资源版本号：在更新之前先获取更新的资源版本号，一般通过HTTP访问游戏服务器来获取。
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- 忽略资源版本号：在更新的时候，资源版本号可以设置为0。
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````c#
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private IEnumerator UpdatePatchManifest()
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{
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UpdateManifestOperation operation = YooAssets.UpdateManifestAsync(updateResourceVersion);
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yield return operation;
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if (operation.Status == EOperationStatus.Succeed)
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{
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//更新成功
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}
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else
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{
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//更新失败
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Debug.LogError(operation.Error);
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}
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}
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````
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**补丁包下载**
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在补丁清单更新完毕后，就可以更新资源文件了。
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根据产品需求，可以选择更新全部资源，或者只更新部分资源。
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补丁包下载接口：
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- YooAssets.CreatePatchDownloader(string[] tags) 根据资源标签列表下载相关资源包文件
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- YooAssets.CreateBundleDownloader(string[] locations) 根据资源对象列表下载相关资源包文件
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````c#
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IEnumerator Download()
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{
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string[] tags = { "buildin", "config" };
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int downloadingMaxNum = 10;
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int failedTryAgain = 3;
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DownloaderOperation downloader = YooAssets.CreatePatchDownloader(tags, downloadingMaxNum, failedTryAgain);
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//没有需要下载的资源
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if (downloader.TotalDownloadCount == 0)
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{
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yield break;
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}
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//需要下载的文件总数和总大小
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int totalDownloadCount = downloader.TotalDownloadCount;
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long totalDownloadBytes = downloader.TotalDownloadBytes;
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//注册回调方法
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downloader.OnDownloadFileFailedCallback = OneDownloadFileFailed;
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downloader.OnDownloadProgressCallback = OnDownloadProgressUpdate;
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downloader.OnDownloadOverCallback = OnDownloadOver;
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//开启下载
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downloader.BeginDownload();
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yield return downloader;
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//检测下载结果
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if (downloader.Status == EOperationStatus.Succeed)
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{
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//下载成功
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}
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else
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{
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//下载失败
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}
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}
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````
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