public UFileListBundleAsset(UFileListBundle bundle, string assetPath)
: base(assetPath, null)
{
_bundle = bundle;
_bundle.AddRef();
_bundle.completed += OnBundleLoaded;
}
//TODO: hints
private UBundle GetBundle(Manifest.BundleInfo bundleInfo, EAssetHints hints)
{
if (_closed)
{
return(null);
}
UBundle bundle = null;
if (bundleInfo != null)
{
var bundleName = bundleInfo.name;
if (!_bundles.TryGetValue(bundleName, out bundle))
{
switch (bundleInfo.type)
{
case Manifest.BundleType.AssetBundle:
bundle = new UAssetBundleBundle(this, bundleInfo, hints);
break;
case Manifest.BundleType.ZipArchive:
bundle = new UZipArchiveBundle(this, bundleInfo);
break;
case Manifest.BundleType.FileList:
bundle = new UFileListBundle(this, bundleInfo);
break;
}
if (bundle != null)
{
_bundles.Add(bundleName, bundle);
_AddDependencies(bundle, hints, bundle.bundleInfo.dependencies);
// 第一次访问 UBundle 时进入此处逻辑, 但这之前可能已经使用 EnsureBundles 等方式发起文件下载
// 优先检查是否已经存在下载中的任务, 如果已经存在下载任务, 任务完成时将自动调用 UBundle.Load(stream)
var bundleJob = _FindDownloadJob(bundle.name);
if (bundleJob == null)
{
if (!LoadBundleFile(bundle))
{
DownloadBundleFile(bundle.bundleInfo, null);
}
}
}
}
}
return(bundle);
}