private void DownloadFiles(int packageIndex, string[] urlPaths, string[] savePaths)
{
if (urlPaths == null)
{
return;
}
if (urlPaths.Length <= 0)
{
return;
}
if (_downloadRetryTimes >= maxRetryTimes) //重试次数大于n次,判断为更新失败
{
return;
}
var downloader = AssetDownloadManager.GetInstance().GetForegroundCentral();
_downloadTask = downloader.NewTask(urlPaths, savePaths);
_downloadTask.onCompleted = (task) =>
{
onDownloadCompleted?.Invoke(task);
var package = _updateList.GetPackage(packageIndex);
OnDownloadCompleted(package);
};
}
////////////////////////////
protected IEnumerator OnUpdateAsset()
{
AssetUpdateAssetList newAssetList = new AssetUpdateAssetList(); //从服务器下载下来的资源列表
AssetUpdateAssetList oldAssetList = new AssetUpdateAssetList();
//从远端下载资源列表到本地
bool isNetworkDownloadFinish = false;
var networkAssetList = GetNetworkAssetPath();
if (!File.Exists(networkAssetList))
{
var networkAssetListUrl = GetNetworkAssetUrl();
var task = AssetDownloadManager.GetInstance().Download(new string[] { networkAssetListUrl }, new string[] { networkAssetList });
task.onCompleted = (_) => { isNetworkDownloadFinish = true; };
//等待下载结束
while (!isNetworkDownloadFinish)
{
yield return(null);
}
}
if (File.Exists(assetFolderPath))
{
oldAssetList.Import(assetFolderPath);
}
else
{
onFinish?.Invoke(-1);
yield break;
}
//读取本地资源列表
var localAssetList = GetLocalAssetListPath();
if (!File.Exists(localAssetList))
{
oldAssetList.Scan(assetFolderPath);
oldAssetList.Export(localAssetList);
}
else
{
oldAssetList.Import(assetFolderPath);
}
//配置列表读取
var networkConfigList = GetNetworkConfigPath();
AssetUpdateConfigList configList = null;
if (File.Exists(networkConfigList))
{
configList = new AssetUpdateConfigList();
configList.Import(networkConfigList);
}
//做资源对比
AssetUpdateDifferenceList differenceList = new AssetUpdateDifferenceList();
differenceList.Compare(newAssetList, oldAssetList);
if (differenceList.IsVerify()) //资源一致,不需要更新
{
onFinish?.Invoke(0);
yield break;
}
//差异表转成更新列表去更新
AssetUpdateUpdateList assetUpdateUpdateList = new AssetUpdateUpdateList(updateDownloadUrl, downloadFolderPath, assetFolderPath);
assetUpdateUpdateList.Convert(differenceList, configList);
//启动更新
bool isUpdateFinsin = false;
AssetUpdateUpdater updater = new AssetUpdateUpdater(assetUpdateUpdateList);
updater.Update();
updater.onFinish = () => { isUpdateFinsin = true; };
while (!isUpdateFinsin)
{
yield return(null);
}
onFinish?.Invoke(1);
yield break;
}
