private static IEnumerator FetchAssetBundle <T>(AssetBundleLoadAssetOperation operation,
IObserver <T> observer, IProgress <float> reportProgress, CancellationToken cancel)
where T : UnityEngine.Object
{
while (!operation.IsDone() && !cancel.IsCancellationRequested)
{
if (reportProgress != null)
{
try
{
reportProgress.Report(operation.GetProgress());
}
catch (Exception ex)
{
observer.OnError(ex);
yield break;
}
}
yield return(null);
}
try
{
if (cancel.IsCancellationRequested)
{
yield break;
}
if (reportProgress != null)
{
try
{
reportProgress.Report(operation.GetProgress());
}
catch (Exception ex)
{
observer.OnError(ex);
yield break;
}
}
if (!string.IsNullOrEmpty(operation.GetError()))
{
observer.OnError(new AssetBundleLoadAssetOperationErrorException(operation));
}
else
{
observer.OnNext(operation.GetAsset <T>());
observer.OnCompleted();
}
}
catch (Exception ex)
{
observer.OnError(ex);
}
}
public AssetBundleLoadAssetOperationErrorException(AssetBundleLoadAssetOperation operation)
{
Operation = operation;
RawErrorMessage = operation.GetError();
}
