bool TryLoadFromLocalStorage(AssetBundleRecord assetBundleRecord, Action <LoaderResult> onFinished)
{
var localPath = AssetBundleUtility.GetLocalStoragePath(assetBundleRecord.AssetBundleName);
if (!File.Exists(localPath))
{
return(false);
}
Debug.Log($"load from local storage: {localPath}");
byte[] bytes;
try
{
using (FileStream fileStream = new FileStream(localPath, FileMode.Open, FileAccess.Read))
{
bytes = new byte[fileStream.Length];
fileStream.Read(bytes, 0, bytes.Length);
fileStream.Close();
}
}
catch (Exception e)
{
Debug.LogError(e);
return(false);
}
var result = new LoaderResult(assetBundleRecord, bytes, null);
onFinished.Invoke(result);
return(true);
}
IEnumerator LoadSceneAdditiveAsync(string assetEntryKey)
{
while (TimeUtility.DropFrameExists())
{
yield return(null);
}
#if UNITY_EDITOR
if (localMode)
{
string sceneName = AssetBundleUtility.GetSceneName(assetEntryKey);
AsyncOperation asyncOperation = SceneManager.LoadSceneAsync(sceneName, LoadSceneMode.Additive);
while (!asyncOperation.isDone)
{
yield return(null);
}
yield break;
}
#endif
string loweredAssetEntryKey = assetEntryKey.ToLower();
AssetEntryRecord assetEntryRecord = GetAssetEntryRecord <UnityEngine.Object>(loweredAssetEntryKey, null);
if (assetEntryRecord == null)
{
yield break;
}
linker.LoadSceneAdditive(assetEntryRecord, this.Table.GetNecessaryAssetBundleRecords(loweredAssetEntryKey));
}
static AsyncOperationSet GetAssetBundleRequestSceneAdditive(AssetBundle assetBundle, AssetEntryRecord assetEntryRecord)
{
string sceneName = AssetBundleUtility.GetSceneName(assetEntryRecord.AssetName);
AsyncOperation operation = SceneManager.LoadSceneAsync(sceneName, LoadSceneMode.Additive);
return(AsyncOperationSet.CreateByAsyncOperation(operation));
}
public IEnumerator LoadAsync(AssetBundleRecord assetBundleRecord, Action <LoaderResult> onFinished)
{
string path = $"{url}{assetBundleRecord.AssetBundleName}";
Debug.Log($"download from web: {path}");
var request = UnityWebRequest.Get(path);
request.downloadHandler = new DownloadHandlerBuffer();
request.SendWebRequest();
yield return(null);
while (!request.isDone)
{
yield return(null);
}
if (request.isHttpError || request.isNetworkError)
{
var errorResult = new LoaderResult(assetBundleRecord, null, AssetBundleDownloadErrorType.Network);
onFinished.Invoke(errorResult);
yield break;
}
byte[] bytes = request.downloadHandler.data;
var localPath = AssetBundleUtility.GetLocalStoragePath(assetBundleRecord.AssetBundleName);
try
{
var dirPath = Path.GetDirectoryName(localPath);
if (!Directory.Exists(dirPath))
{
Directory.CreateDirectory(dirPath);
}
using (FileStream fileStream = new FileStream(localPath, FileMode.OpenOrCreate, FileAccess.Write))
{
fileStream.Write(bytes, 0, bytes.Length);
fileStream.Close();
}
}
catch (Exception e)
{
Debug.LogError(e);
var errorResult = new LoaderResult(assetBundleRecord, bytes, AssetBundleDownloadErrorType.IO);
onFinished.Invoke(errorResult);
yield break;
}
var successResult = new LoaderResult(assetBundleRecord, bytes, null);
onFinished.Invoke(successResult);
}
IEnumerator LoadTableAsync(bool forciblyDownload)
{
isTableLoading = true;
#if UNITY_EDITOR
if (localMode)
{
string localFilePath = GetLocalFilePath(tablePath);
ResourceRequest resourceRequest = Resources.LoadAsync(localFilePath);
while (!resourceRequest.isDone)
{
yield return(null);
}
var localAsset = resourceRequest.asset as UnityEngine.Object;
if (localAsset != null)
{
while (linker.IsPaused || TimeUtility.DropFrameExists())
{
yield return(null);
}
OnTableAssetBundleLoaded(localAsset);
yield break;
}
}
#endif
if (forciblyDownload)
{
// delete table cache
string localTablePath = AssetBundleUtility.GetLocalStoragePath(tablePath);
try
{
if (File.Exists(localTablePath))
{
File.Delete(localTablePath);
}
}
catch (Exception e)
{
Debug.LogError(e);
errorReceiver.OnError(AssetBundleErrorCode.FailureToDeleteTable, $"cannot delete table: {tablePath}");
yield break;
}
}
linker.LoadTableAsset(tablePath, OnTableAssetBundleLoaded);
}
public Downloader(string url)
{
this.url = AssetBundleUtility.CheckEndSlash(url);
}
