/// <summary>
/// 更新下载器
/// </summary>
public void Update()
{
if (DownloadStates != EDownloaderStates.Loading)
{
return;
}
// 检测下载器结果
_removeList.Clear();
long downloadBytes = CurrentDownloadBytes;
foreach (var loader in _downloaders)
{
downloadBytes += (long)loader.DownloadedBytes;
if (loader.IsDone() == false)
{
continue;
}
PatchBundle patchBundle = loader.UserData as PatchBundle;
// 检测是否下载失败
if (loader.HasError())
{
loader.ReportError();
loader.Dispose();
_removeList.Add(loader);
_loadFailedList.Add(patchBundle);
continue;
}
// 验证下载文件完整性
if (_patcherMgr.CheckContentIntegrity(patchBundle) == false)
{
MotionLog.Error($"Check download content integrity is failed : {patchBundle.BundleName}");
loader.Dispose();
_removeList.Add(loader);
_checkFailedList.Add(patchBundle);
continue;
}
// 下载成功
loader.Dispose();
_removeList.Add(loader);
_succeedList.Add(patchBundle);
CurrentDownloadCount++;
CurrentDownloadBytes += patchBundle.SizeBytes;
}
// 移除已经完成的下载器（无论成功或失败）
foreach (var loader in _removeList)
{
_downloaders.Remove(loader);
}
// 如果下载进度发生变化
if (_lastDownloadBytes != downloadBytes || _lastDownloadCount != CurrentDownloadCount)
{
_lastDownloadBytes = downloadBytes;
_lastDownloadCount = CurrentDownloadCount;
OnDownloadProgressCallback?.Invoke(TotalDownloadCount, _lastDownloadCount, TotalDownloadBytes, _lastDownloadBytes);
}
// 动态创建新的下载器到最大数量限制
// 注意：如果期间有下载失败的文件，暂停动态创建下载器
if (_downloadList.Count > 0 && _loadFailedList.Count == 0 && _checkFailedList.Count == 0)
{
if (_downloaders.Count < _maxNumberOnLoad)
{
int index = _downloadList.Count - 1;
WebFileRequest downloader = CreateDownloader(_downloadList[index]);
_downloaders.Add(downloader);
_downloadList.RemoveAt(index);
}
}
// 下载结算
if (_downloaders.Count == 0)
{
// 更新缓存并保存
if (_succeedList.Count > 0)
{
_patcherMgr.CacheDownloadPatchFiles(_succeedList);
}
if (_loadFailedList.Count > 0)
{
DownloadStates = EDownloaderStates.Failed;
OnPatchFileDownloadFailedCallback?.Invoke(_loadFailedList[0].BundleName);
OnDownloadOverCallback?.Invoke(false);
}
else if (_checkFailedList.Count > 0)
{
DownloadStates = EDownloaderStates.Failed;
OnPatchFileCheckFailedCallback?.Invoke(_checkFailedList[0].BundleName);
OnDownloadOverCallback?.Invoke(false);
}
else
{
// 结算成功
DownloadStates = EDownloaderStates.Succeed;
OnDownloadOverCallback?.Invoke(true);
}
}
}
internal override void Update()
{
if (_steps == ESteps.None || _steps == ESteps.Done)
{
return;
}
if (_steps == ESteps.Check)
{
if (_downloadList == null)
{
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = "Download list is null.";
}
else
{
_steps = ESteps.Loading;
}
}
if (_steps == ESteps.Loading)
{
// 检测下载器结果
_removeList.Clear();
long downloadBytes = CurrentDownloadBytes;
foreach (var downloader in _downloaders)
{
downloadBytes += (long)downloader.DownloadedBytes;
if (downloader.IsDone() == false)
{
continue;
}
BundleInfo bundleInfo = downloader.GetBundleInfo();
// 检测是否下载失败
if (downloader.HasError())
{
_removeList.Add(downloader);
_loadFailedList.Add(bundleInfo);
continue;
}
// 下载成功
_removeList.Add(downloader);
CurrentDownloadCount++;
CurrentDownloadBytes += bundleInfo.SizeBytes;
}
// 移除已经完成的下载器（无论成功或失败）
foreach (var loader in _removeList)
{
_downloaders.Remove(loader);
}
// 如果下载进度发生变化
if (_lastDownloadBytes != downloadBytes || _lastDownloadCount != CurrentDownloadCount)
{
_lastDownloadBytes = downloadBytes;
_lastDownloadCount = CurrentDownloadCount;
Progress = (float)_lastDownloadBytes / TotalDownloadBytes;
OnDownloadProgressCallback?.Invoke(TotalDownloadCount, _lastDownloadCount, TotalDownloadBytes, _lastDownloadBytes);
}
// 动态创建新的下载器到最大数量限制
// 注意：如果期间有下载失败的文件，暂停动态创建下载器
if (_downloadList.Count > 0 && _loadFailedList.Count == 0)
{
if (_isPause)
{
return;
}
if (_downloaders.Count < _downloadingMaxNumber)
{
int index = _downloadList.Count - 1;
var operation = DownloadSystem.BeginDownload(_downloadList[index], _failedTryAgain);
_downloaders.Add(operation);
_downloadList.RemoveAt(index);
}
}
// 下载结算
if (_downloaders.Count == 0)
{
if (_loadFailedList.Count > 0)
{
string fileName = _loadFailedList[0].BundleName;
Error = $"Failed to download file : {fileName}";
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
OnDownloadFileFailedCallback?.Invoke(fileName);
OnDownloadOverCallback?.Invoke(false);
}
else
{
// 结算成功
_steps = ESteps.Done;
Status = EOperationStatus.Succeed;
OnDownloadOverCallback?.Invoke(true);
}
}
}
}
