static public T LoadAsset <T>(string assetBundleName, string assetName, System.Type type) where T : UnityEngine.Object
{
#if UNITY_EDITOR
if (DevABModeInEditor)
{
string[] assetPaths = AssetDatabase.GetAssetPathsFromAssetBundleAndAssetName(assetBundleName, assetName);
if (assetPaths.Length == 0)
{
Debug.LogError("There is no asset with name \"" + assetName + "\" in " + assetBundleName);
return(null);
}
var t = AssetDatabase.LoadAssetAtPath <T>(assetPaths[0]);
return(t as T);
}
else
#endif
{
QLoadedAB bundle = null;
Debug.Log(m_LoadedAssetBundles.Count + " ********** loadedassetbundles count******** " + assetBundleName);
m_LoadedAssetBundles.TryGetValue(assetBundleName, out bundle);
if (bundle.m_AssetBundle != null)
{
return(bundle.m_AssetBundle.LoadAsset <T> (assetName));
}
else
{
Debug.LogError("***make sure the asset bundle finish loaded first *********");
return(null);
}
}
}
// Where we actuall call WWW to download the assetBundle.
static protected bool LoadAssetBundleInternal(string assetBundleName, bool isLoadingAssetBundleManifest)
{
// Already loaded.
QLoadedAB bundle = null;
m_LoadedAssetBundles.TryGetValue(assetBundleName, out bundle);
if (bundle != null)
{
bundle.m_ReferencedCount++;
return(true);
}
// @TODO: Do we need to consider the referenced count of WWWs?
// In the demo, we never have duplicate WWWs as we wait LoadAssetAsync()/LoadLevelAsync() to be finished before calling another LoadAssetAsync()/LoadLevelAsync().
// But in the real case, users can call LoadAssetAsync()/LoadLevelAsync() several times then wait them to be finished which might have duplicate WWWs.
if (m_DownloadingWWWs.ContainsKey(assetBundleName))
{
return(true);
}
AssetBundleCreateRequest download = null;
string url = m_BaseDownloadingURL + assetBundleName;
download = AssetBundle.LoadFromFileAsync(url);
m_DownloadingWWWs.Add(assetBundleName, download);
return(false);
}
public override bool Update()
{
if (m_Request != null)
{
return(false);
}
QLoadedAB bundle = QABMgr.GetLoadedAssetBundle(m_AssetBundleName, out m_DownloadingError);
if (bundle != null)
{
if (m_IsAdditive)
{
m_Request = Application.LoadLevelAdditiveAsync(m_LevelName);
}
else
{
m_Request = Application.LoadLevelAsync(m_LevelName);
}
return(false);
}
else
{
return(true);
}
}
static public void ForceUnloadAll()
{
foreach (var keyValue in m_LoadedAssetBundles)
{
QLoadedAB loadedAb = keyValue.Value;
loadedAb.m_AssetBundle.Unload(true);
}
m_LoadedAssetBundles.Clear();
m_DownloadingWWWs.Clear();
m_DownloadingErrors.Clear();
m_InProgressOperations.Clear();
m_Dependencies.Clear();
}
static protected AssetBundle LoadAssetBundleInternalSync(string assetBundleName, bool isLoadingAssetBundleManifest)
{
QLoadedAB bundle = null;
m_LoadedAssetBundles.TryGetValue(assetBundleName, out bundle);
if (bundle != null)
{
bundle.m_ReferencedCount++;
return(bundle.m_AssetBundle);
}
string url = m_BaseDownloadingURL + assetBundleName;
AssetBundle ab = AssetBundle.LoadFromFile(url);
m_LoadedAssetBundles.Add(assetBundleName, new QLoadedAB(ab));
return(ab);
}
static protected void UnloadAssetBundleInternal(string assetBundleName, bool force)
{
string error;
QLoadedAB bundle = GetLoadedAssetBundle(assetBundleName, out error);
if (bundle == null)
{
return;
}
if (--bundle.m_ReferencedCount == 0)
{
bundle.m_AssetBundle.Unload(force);
m_LoadedAssetBundles.Remove(assetBundleName);
Log(LogType.Info, assetBundleName + " has been unloaded successfully");
}
}
// Returns true if more Update calls are required.
public override bool Update()
{
if (m_Request != null)
{
return(false);
}
QLoadedAB bundle = QABMgr.GetLoadedAssetBundle(m_AssetBundleName, out m_DownloadingError);
if (bundle != null)
{
///@TODO: When asset bundle download fails this throws an exception...
m_Request = bundle.m_AssetBundle.LoadAssetAsync(m_AssetName, m_Type);
return(false);
}
else
{
return(true);
}
}
// Returns true if more Update calls are required.
public override bool Update()
{
if (loadFinish)
{
return(false);
}
bundle = QABMgr.GetLoadedAssetBundle(m_AssetBundleName, out m_DownloadingError);
if (bundle != null)
{
///@TODO: When asset bundle download fails this throws an exception...
loadFinish = true;
return(false);
}
else
{
return(true);
}
}
// Get loaded AssetBundle, only return vaild object when all the dependencies are downloaded successfully.
static public QLoadedAB GetLoadedAssetBundle(string assetBundleName, out string error)
{
if (m_DownloadingErrors.TryGetValue(assetBundleName, out error))
{
return(null);
}
QLoadedAB 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);
}
// Make sure all dependencies are loaded
foreach (var dependency in dependencies)
{
if (m_DownloadingErrors.TryGetValue(assetBundleName, out error))
{
return(bundle);
}
// Wait all the dependent assetBundles being loaded.
QLoadedAB dependentBundle;
m_LoadedAssetBundles.TryGetValue(dependency, out dependentBundle);
if (dependentBundle == null)
{
return(null);
}
}
return(bundle);
}