void Update()
{
if (!ConfigLoaded)
{
return;
}
_finishList.Clear();
_failedsList.Clear();
//处理正在处理的request,如果已经OK，则切换到newFinish队列
//如果失败，再切换到newFail中
foreach (BundleRequest request in _processingRequest.Values)
{
if (!request.IsDone)
{
continue;
}
if (request.CreateRequest == null)
{
if (request.triedTimes - 1 < BmConfiger.DownloadRetryTime)
{
//use asset bundle
request.CreateAssetBundle();
}
else
{
_failedsList.Add(request.Url);
Debug.LogError("Download " + request.Url + " failed for " + request.triedTimes + " times.");
}
}
else if (request.CreateRequest.isDone)
{
_finishList.Add(request.Url);
}
}
//将newFinish中的移动到successd队列之中
foreach (string finishedUrl in _finishList)
{
BundleRequest finishRequest = _processingRequest[finishedUrl];
_succeedRequest.Add(finishedUrl, finishRequest);
_processingRequest.Remove(finishedUrl);
finishRequest.LoadComplete();
}
// 将失败的request加入到失败队列中
foreach (string finishedUrl in _failedsList)
{
if (!_failedRequest.ContainsKey(finishedUrl))
{
_failedRequest.Add(finishedUrl, _processingRequest[finishedUrl]);
}
_processingRequest.Remove(finishedUrl);
}
// Start download new bundles
int waitingIndex = 0;
//处理等待队列，等待队列之中，有dependRequest,也有真正需要使用的depend
while (_processingRequest.Count < BmConfiger.DownloadThreadsCount &&
waitingIndex < _waitingRequests.Count)
{
BundleRequest curRequest = _waitingRequests[waitingIndex++];
bool canStartDownload = curRequest.bundleData == null || isBundleDependenciesReady(curRequest.bundleData.name);
if (canStartDownload)
{
_waitingRequests.Remove(curRequest);
curRequest.CreateAssetBundle();
_processingRequest.Add(curRequest.Url, curRequest);
}
}
}
