// Returns true if more Update calls are required.
public override bool Update()
{
if (m_Request != null)
{
return(false);
}
LoadedAssetBundle loadedBundle = AssetBundleManager.GetLoadedAssetBundle(m_AssetBundleName, out m_DownloadingError);
if (loadedBundle != null)
{
/// When asset bundle download fails this throws an exception but this should be caught above now
m_Request = loadedBundle.m_AssetBundle.LoadAssetAsync(m_AssetName, m_Type);
return(false);
}
else
{
return(true);
}
}
protected override void FinishDownload()
{
error = m_WWW.error;
if (!string.IsNullOrEmpty(error))
{
Debug.LogWarning("[AssetBundleLoadOperation.AssetBundleDownloadFromWebOperation] URL was " + m_WWW.url + " error was " + error);
return;
}
if (!m_isJsonIndex)
{
bundle = m_WWW.assetBundle;
if (bundle == null)
{
Debug.LogWarning("[AssetBundleLoadOperation.AssetBundleDownloadFromWebOperation] " + assetBundleName + " was not a valid assetBundle");
m_WWW.Dispose();
m_WWW = null;
}
else if (!WasBundleEncrypted())
{
assetBundle = new LoadedAssetBundle(m_WWW.assetBundle);
m_WWW.Dispose();
m_WWW = null;
}
}
else
{
string indexData = m_WWW.text;
if (indexData == "")
{
Debug.LogWarning("[AssetBundleLoadOperation.AssetBundleDownloadFromWebOperation] The JSON AssetBundleIndex was empty");
}
else
{
assetBundle = new LoadedAssetBundle(m_WWW.text);
}
m_WWW.Dispose();
m_WWW = null;
}
}
// Returns true if more Update calls are required.
public override bool Update()
{
//base.Update();
if (m_Request == null)
{
LoadedAssetBundle loadedBundle = AssetBundleManager.GetLoadedAssetBundle(m_AssetBundleName, out m_DownloadingError);
if (loadedBundle != null)
{
if (_isJsonIndex)
{
AssetBundleManager.AssetBundleIndexObject = ScriptableObject.CreateInstance <AssetBundleIndex>();
JsonUtility.FromJsonOverwrite(loadedBundle.m_data, AssetBundleManager.AssetBundleIndexObject);
}
else
{
if (loadedBundle.m_AssetBundle == null)
{
Debug.LogWarning("AssetBundle was null for " + m_AssetBundleName);
return(false);
}
m_Request = loadedBundle.m_AssetBundle.LoadAssetAsync <AssetBundleIndex>(m_AssetName);
}
}
}
if (m_Request != null && m_Request.isDone)
{
AssetBundleManager.AssetBundleIndexObject = GetAsset <AssetBundleIndex>();
return(false);
}
if (AssetBundleManager.AssetBundleIndexObject != null)
{
return(false);
}
else
{
return(true);
}
}
/// <summary>
/// Sets up download operation for the given asset bundle if it's not downloaded already.
/// </summary>
static protected bool LoadAssetBundleInternal(string assetBundleToFind, bool isLoadingAssetBundleIndex = false, bool useJsonIndex = false, string jsonIndexUrl = "")
{
//encrypted bundles have the suffix 'encrypted' appended to the name TODO this should probably go in the index though and be settable in the UMAAssetBundleManagerSettings window
//string encryptedSuffix = BundleEncryptionKey != "" ? "encrypted" : "";
string assetBundleToGet = assetBundleToFind;
if (BundleEncryptionKey != "" && m_AssetBundleIndex != null)
{
assetBundleToGet = m_AssetBundleIndex.GetAssetBundleEncryptedName(assetBundleToFind);
Debug.Log("assetBundleToFind was " + assetBundleToFind + " assetBundleToGet was " + assetBundleToGet);
}
else if (BundleEncryptionKey != "" && m_AssetBundleIndex == null)
{
assetBundleToGet = assetBundleToFind + "encrypted";
}
// Already loaded.
LoadedAssetBundle bundle = null;
m_LoadedAssetBundles.TryGetValue(assetBundleToFind, out bundle); //encrypted or not this will have the assetbundlename without the 'encrypted' suffix
if (bundle != null && bundle.m_AssetBundle != null)
{
bundle.m_ReferencedCount++;
return(true);
}
// @TODO: Do we need to consider the referenced count of WWWs?
// users can call LoadAssetAsync()/LoadLevelAsync() several times then wait them to be finished which might have duplicate WWWs.
if (m_DownloadingBundles.Contains(assetBundleToFind))
{
return(true);
}
string bundleBaseDownloadingURL = GetAssetBundleBaseDownloadingURL(assetBundleToFind);
//TODO These dont support encrypted bundles yet
if (bundleBaseDownloadingURL.ToLower().StartsWith("odr://"))
{
#if ENABLE_IOS_ON_DEMAND_RESOURCES
Log(LogType.Info, "Requesting bundle " + assetBundleToGet + " through ODR");
m_InProgressOperations.Add(new AssetBundleDownloadFromODROperation(assetBundleToGet));
#else
new ApplicationException("Can't load bundle " + assetBundleToFind + " through ODR: this Unity version or build target doesn't support it.");
#endif
}
else if (bundleBaseDownloadingURL.ToLower().StartsWith("res://"))
{
#if ENABLE_IOS_APP_SLICING
Log(LogType.Info, "Requesting bundle " + assetBundleToGet + " through asset catalog");
m_InProgressOperations.Add(new AssetBundleOpenFromAssetCatalogOperation(assetBundleToGet));
#else
new ApplicationException("Can't load bundle " + assetBundleToFind + " through asset catalog: this Unity version or build target doesn't support it.");
#endif
}
else
{
if (!bundleBaseDownloadingURL.EndsWith("/"))
{
bundleBaseDownloadingURL += "/";
}
string url = bundleBaseDownloadingURL + assetBundleToGet;
WWW download = null;
// For index assetbundle, always download it as we don't have hash for it.
//TODO make something to test if there is and internet connection and if not try to get a cached version of this so we can still access the stuff that has been previously cached
//TODO2 Make the index cache somewhere when it is downloaded.
if (isLoadingAssetBundleIndex)
{
if (useJsonIndex && jsonIndexUrl != "")
{
url = jsonIndexUrl.Replace("[PLATFORM]", Utility.GetPlatformName());
}
else if (useJsonIndex)
{
url = url + ".json";
}
download = new WWW(url);
if (!String.IsNullOrEmpty(download.error) || download == null)
{
if (!String.IsNullOrEmpty(download.error))
{
Log(LogType.Warning, download.error);
}
else
{
Log(LogType.Warning, " index new WWW(url) was NULL");
}
}
}
else
{
download = WWW.LoadFromCacheOrDownload(url, m_AssetBundleIndex.GetAssetBundleHash(assetBundleToFind), 0);
}
m_InProgressOperations.Add(new AssetBundleDownloadFromWebOperation(assetBundleToFind /* + encryptedSuffix*/, download, useJsonIndex));
}
m_DownloadingBundles.Add(assetBundleToFind);
return(false);
}
/// <summary>
/// Retrieves an asset bundle that has previously been requested via LoadAssetBundle.
/// Returns null if the asset bundle or one of its dependencies have not been downloaded yet.
/// </summary>
/// <param name="assetBundleName"></param>
/// <param name="error"></param>
/// <returns></returns>
static public LoadedAssetBundle GetLoadedAssetBundle(string assetBundleName, out string error)
{
if (m_DownloadingErrors.TryGetValue(assetBundleName, out error))
{
if (!error.StartsWith("-"))
{
m_DownloadingErrors[assetBundleName] = "-" + error;
#if UNITY_EDITOR
if (assetBundleName == Utility.GetPlatformName().ToLower() + "index")
{
if (EditorPrefs.GetBool(Application.dataPath + "LocalAssetBundleServerEnabled") == false || SimpleWebServer.serverStarted == false) //when the user restarts Unity this might be true even if the server has not actually been started
{
if (SimulateAssetBundleInEditor)
{
//we already outputted a message in DynamicAssetloader
}
else
{
Debug.LogWarning("AssetBundleManager could not download the AssetBundleIndex from the Remote Server URL you have set in DynamicAssetLoader. Have you set the URL correctly and uploaded your AssetBundles?");
error = "AssetBundleManager could not download the AssetBundleIndex from the Remote Server URL you have set in DynamicAssetLoader. Have you set the URL correctly and uploaded your AssetBundles?";
}
}
else
{
//Otherwise the AssetBundles themselves will not have been built.
Debug.LogWarning("Switched to Simulation mode because no AssetBundles were found. Have you build them? (Go to 'Assets/AssetBundles/Build AssetBundles').");
error = "Switched to Simulation mode because no AssetBundles were found.Have you build them? (Go to 'Assets/AssetBundles/Build AssetBundles').";
//this needs to hide the loading infobox- or something needs too..
}
SimulateOverride = true;
}
else
#endif
Debug.LogWarning("Could not return " + assetBundleName + " because of error:" + error);
}
return(null);
}
LoadedAssetBundle bundle = null;
m_LoadedAssetBundles.TryGetValue(assetBundleName, out bundle);
if (bundle == null)
{
return(null);
}
// No dependencies are recorded, only the bundle itself is required.
string[] dependencies = null;
if (!m_Dependencies.TryGetValue(assetBundleName, out dependencies))
{
return(bundle);
}
// Otherwise Make sure all dependencies are loaded
foreach (var dependency in dependencies)
{
if (m_DownloadingErrors.TryGetValue(dependency, out error))
{
return(null);
}
// Wait all the dependent assetBundles being loaded.
LoadedAssetBundle dependentBundle = null;
m_LoadedAssetBundles.TryGetValue(dependency, out dependentBundle);
if (dependentBundle == null)
{
return(null);
}
}
return(bundle);
}
// Returns true if more Update calls are required.
public override bool Update()
{
//base.Update();
if (m_Request == null)
{
LoadedAssetBundle loadedBundle = AssetBundleManager.GetLoadedAssetBundle(m_AssetBundleName, out m_DownloadingError);
if (loadedBundle != null)
{
if (_isJsonIndex)
{
AssetBundleManager.AssetBundleIndexObject = ScriptableObject.CreateInstance <AssetBundleIndex>();
JsonUtility.FromJsonOverwrite(loadedBundle.m_data, AssetBundleManager.AssetBundleIndexObject);
}
else
{
if (loadedBundle.m_AssetBundle == null)
{
Debug.LogWarning("AssetBundle was null for " + m_AssetBundleName);
return(false);
}
m_Request = loadedBundle.m_AssetBundle.LoadAssetAsync <AssetBundleIndex>(m_AssetName);
}
}
}
if (m_Request != null && m_Request.isDone)
{
AssetBundleManager.AssetBundleIndexObject = GetAsset <AssetBundleIndex>();
//If there is an AssetBundleManager.m_ConnectionChecker and it is set to m_ConnectionChecker.UseBundleIndexCaching
//cache this so we can use it offline if we need to
if (AssetBundleManager.ConnectionChecker != null && AssetBundleManager.ConnectionChecker.UseBundleIndexCaching == true)
{
if (AssetBundleManager.AssetBundleIndexObject != null)
{
Debug.Log("Caching downloaded index with Build version " + AssetBundleManager.AssetBundleIndexObject.bundlesPlayerVersion);
var cachedIndexPath = Path.Combine(Application.persistentDataPath, "cachedBundleIndex");
if (!Directory.Exists(cachedIndexPath))
{
Directory.CreateDirectory(cachedIndexPath);
}
cachedIndexPath = Path.Combine(cachedIndexPath, m_AssetBundleName + ".json");
File.WriteAllText(cachedIndexPath, JsonUtility.ToJson(AssetBundleManager.AssetBundleIndexObject));
}
}
return(false);
}
if (AssetBundleManager.AssetBundleIndexObject != null)
{
return(false);
}
else
{
// if there has been an error make this return false
//It wont need any more updates and ABM needs to put it in failed downloads
if (string.IsNullOrEmpty(m_DownloadingError))
{
return(true);
}
else
{
return(false);
}
}
}