private IObservable <AssetBundle> LoadAsObservable(string assetBundleName)
{
if (this.LoadedAssetBundleMap.ContainsKey(assetBundleName))
{
return(Observable.Return(this.LoadedAssetBundleMap[assetBundleName]));
}
return(ObservableUnityWebRequest
.GetAssetBundle(this.URLResolverNormal.Resolve(assetBundleName), 0)
.Do(assetBundle => this.LoadedAssetBundleMap[assetBundleName] = assetBundle)
.Timeout(TimeSpan.FromSeconds(TIMEOUT_SECONDS)));
}
public IObservable <AssetBundle> LoadAsObservable(string assetBundleName)
{
if (LoadedAssetBundleMap.ContainsKey(assetBundleName))
{
return(Observable.Return(LoadedAssetBundleMap[assetBundleName]));
}
return(ObservableUnityWebRequest
.GetAssetBundle(ResolveAssetBundleURL(assetBundleName), ResolveAssetBundleHash(assetBundleName), 0)
.Do(assetBundle => LoadedAssetBundleMap[assetBundleName] = assetBundle)
.Timeout(TimeSpan.FromSeconds(TimeoutSeconds)));
}
/// <summary>
/// AssetBundle をダウンロードする
/// </summary>
/// <param name="assetBundleName">AssetBundle 名</param>
/// <param name="shouldUnloadImmediately">自動 Unload するかどうか</param>
/// <returns>ダウンロードが完了した AssetBundle のインスタンスが流れるストリーム</returns>
private IObservable <UnityEngine.AssetBundle> FetchAssetBundleAsObservable(string assetBundleName, bool shouldUnloadImmediately)
{
ScheduledNotifier <float> scheduledNotifier = new ScheduledNotifier <float>();
scheduledNotifier.Subscribe(x => this.ProgressNotifier.Report(assetBundleName, x));
return(ObservableUnityWebRequest
.GetAssetBundle(
Manager.Instance.SourceProvider.DeterminateURL(assetBundleName),
this.RootAssetBundleManifest.GetAssetBundleHash(assetBundleName),
0,
null,
scheduledNotifier
)
.Select(
(assetBundle) => {
// 保持している他のバージョンキャッシュを削除する
this.ClearOtherCachedVersions(assetBundle.name);
// AssetBundle 単位の依存 AssetBundle 名マップに依存 AssetBundle を保存
this.AssetBundleDependencieListMap[assetBundle.name] = this.RootAssetBundleManifest.GetAllDependencies(assetBundle.name).ToList();
if (assetBundle.isStreamedSceneAssetBundle)
{
/* StreamedSceneAssetBundle の場合は AssetBundle 名を保持しておく */
string sceneName = Path.GetFileNameWithoutExtension(assetBundle.GetAllScenePaths().ToList().First());
if (!string.IsNullOrEmpty(sceneName))
{
this.SceneAssetBundleNameMap[sceneName] = assetBundle.name;
}
}
if (shouldUnloadImmediately)
{
assetBundle.Unload(true);
return null;
}
this.TemporaryLoadedAssetBundleList.Add(assetBundle);
return assetBundle;
}
));
}
public IObservable <Unit> DownloadAllAsObservable()
{
return(this
// SingleManfiest を読み込む
.LoadSingleManifestAsObservable()
.SelectMany(
_ => this
.SingleManifest
// 全ての AssetBundle 名を取得
.GetAllAssetBundles()
.Select(
assetBundleName => Observable
// 並列処理待ち
.FromCoroutine(this.WaitParallelDownload)
// 並列カウントをインクリメント
.Do(__ => this.ParallelDownloadCount.Value++)
// UnityWebRequest に変換
.SelectMany(
__ => {
if (this.LoadedAssetBundleMap.ContainsKey(assetBundleName))
{
return Observable.Return(this.LoadedAssetBundleMap[assetBundleName]);
}
return ObservableUnityWebRequest
.GetAssetBundle(this.URLResolverNormal.Resolve(assetBundleName), this.SingleManifest.GetAssetBundleHash(assetBundleName), 0, null, this.GetProgress(assetBundleName))
// 読み込み完了時に読み込み済マップに入れておく
// AssetBundle を開きっぱなしにしておくコストは殆ど無いとのことなので、Unload は原則行わない
// See also: http://tsubakit1.hateblo.jp/entry/2016/08/23/233604 の「SceneをAssetBundleに含める方法」セクションの最後
.Do(assetBundle => this.LoadedAssetBundleMap[assetBundleName] = assetBundle)
.Timeout(TimeSpan.FromSeconds(TIMEOUT_SECONDS));
})
// OnError にせよ OnCompleted にせよ「完了」したら並列ダウンロード数をデクリメント
.Finally(() => this.ParallelDownloadCount.Value--)
)
.WhenAll()
)
.AsUnitObservable());
}
