/// <summary>
/// Process download AssetBundle file. Each [AssetBundleFileDownload] have retryCount to process if AssetBundle can not be downloaded.
/// While redownload's times is over retryCount, the downloading is stop, failed will be returned"
/// </summary>
void DownloadFile(bool saveDownloadedFileToLocal, AssetBundleFileDownload dlObj, Action <WWW> onFinish, Action <string> onFailed)
{
StartCoroutine(dlObj.DownloadData(
onFinish,
onFailed, () => {
//Retry download again
DownloadFile(saveDownloadedFileToLocal, dlObj, onFinish, onFailed);
},
saveDownloadedFileToLocal,
AssetBundleSettings.localFolderPathSaveAB));
}
/// <summary>
/// Loads the scene async from AssetBundle
/// </summary>
/// <returns>The scene async.</returns>
/// <param name="assetBundle">AssetBundle file.</param>
/// <param name="loadSceneMode">Load scene mode.</param>
/// <param name="onFinish">onFinish callback. Return name of scene has just loaded</param>
/// <param name="onFailed">onFailed callback Return error reason.</param>
public IEnumerator LoadSceneAsync(
string assetBundle,
UnityEngine.SceneManagement.LoadSceneMode loadSceneMode,
Action <string> onFinish, Action <string> onFailed)
{
bool isSuccess = false;
bool isProcessFinish = false;
//Load AssetBundle version first
if (_assetBundleVersionDB == null)
{
StartCoroutine(GetAssetBundleVersionFile((fileUrl) => {
Debug.Log("Download version file OK " + fileUrl);
isSuccess = true;
isProcessFinish = true;
}, (downloadPath, error) => {
isProcessFinish = true;
Debug.LogError("Can not download version file from: " + downloadPath);
onFailed(error);
}));
yield return(new WaitUntil(() => {
return isProcessFinish;
}));
if (!isSuccess)
{
yield break;
}
}
//Check AssetBundle existed in version database or not?
AssetBundleSettings.AssetBundleInfo abInfo = _assetBundleVersionDB.lstAssetBundleInfo.Where(_ => _.assetBundle == assetBundle).FirstOrDefault();
if (abInfo == null)
{
Debug.Log("Not found『" + assetBundle + "』in AssetBundles Version Database");
onFailed("Not found『" + assetBundle + "』in AssetBundles Version Database");
yield break;
}
//Load from local
string path = AssetBundleSettings.localFolderPathSaveAB + "/" + abInfo.assetBundle + abInfo.extension;
if (File.Exists(path))
{
System.Uri url = new System.Uri(path);
WWW _www = new WWW(url.AbsoluteUri);
yield return(new WaitUntil(() => {
return _www.isDone;
}));
if (string.IsNullOrEmpty(_www.error))
{
isSuccess = false;
isProcessFinish = false;
StartCoroutine(ExtractSceneNameAndLoadSceneFromAssetBundle(_www, abInfo, path, loadSceneMode,
(sceneName) => {
isSuccess = true;
isProcessFinish = true;
onFinish(sceneName);
}, (err) => {
isSuccess = false;
isProcessFinish = true;
}));
_www.Dispose();
yield return(new WaitUntil(() => {
return isProcessFinish;
}));
if (isSuccess)
{
yield break;
}
}
else
{
onFailed("Not Found『" + abInfo.assetBundle + "』In LocalPath: " + path);
yield break;
}
}
else
{
Debug.Log("NOT FOUND " + assetBundle);
}
//Can not be loaded from local, so need download from server
AssetBundleFileDownload dlObj = new AssetBundleFileDownload(AssetBundleSettings.GetAssetBundleServerURL(), abInfo);
DownloadFile(true, dlObj,
(www) => {
string pathLocal = AssetBundleSettings.localFolderPathSaveAB + "/" + abInfo.assetBundle + abInfo.extension;
StartCoroutine(ExtractSceneNameAndLoadSceneFromAssetBundle(www, abInfo, pathLocal, loadSceneMode, onFinish, onFailed));
dlObj.Dispose();
}, (errMsg) => {
onFailed(errMsg);
});
}
/// <summary>
/// Loads asset object from AssetBundles
/// </summary>
/// <returns>The asset async.</returns>
/// <param name="assetBundle">AssetBundle file.</param>
/// <param name="onFinish">onFinish callback. Return object was loaded.</param>
/// <param name="onFailed">onFailed callback. Return error reason.</param>
/// <typeparam name="T">The 1st type parameter.</typeparam>
public IEnumerator LoadAssetAsync <T>(
string assetBundle,
Action <T> onFinish,
Action <string> onFailed) where T : UnityEngine.Object
{
if (_assetBundleVersionDB == null)
{
//Load AssetBundle version first
bool isSuccess = false;
bool isDownloadVersionFileFinish = false;
StartCoroutine(GetAssetBundleVersionFile((fileUrl) => {
Debug.Log("Download version file OK " + fileUrl);
isSuccess = true;
isDownloadVersionFileFinish = true;
}, (downloadPath, error) => {
isDownloadVersionFileFinish = true;
Debug.LogError("Can not download version file from: " + downloadPath);
onFailed(error);
}));
yield return(new WaitUntil(() => {
return isDownloadVersionFileFinish;
}));
if (!isSuccess)
{
yield break;
}
}
//Check AssetBundle existed in version database or not?
AssetBundleSettings.AssetBundleInfo abInfo = _assetBundleVersionDB.lstAssetBundleInfo.Where(_ => _.assetBundle == assetBundle).FirstOrDefault();
if (abInfo == null)
{
Debug.Log("Not found『" + assetBundle + "』in AssetBundles Version Database");
onFailed("Not found『" + assetBundle + "』in AssetBundles Version Database");
yield break;
}
//Load from local
bool isFinish = false;
bool isLoaded = false;
StartCoroutine(LoadAssetBundleFromLocalPath <T>(abInfo,
(obj) => {
isFinish = true;
isLoaded = true;
onFinish(obj);
}, (err) => {
isFinish = true;
isLoaded = false;
onFailed(err);
}));
yield return(new WaitUntil(() => {
return isFinish;
}));
if (isLoaded)
{
yield break;
}
//Can not be loaded from local, so need download from server
AssetBundleFileDownload dlObj = new AssetBundleFileDownload(AssetBundleSettings.GetAssetBundleServerURL(), abInfo);
DownloadFile(true, dlObj,
(www) => {
string path = AssetBundleSettings.localFolderPathSaveAB + "/" + abInfo.assetBundle + abInfo.extension;
StartCoroutine(ExtractAssetObjectFromAssetBundle(www, abInfo, path, onFinish, onFailed));
dlObj.Dispose();
}, (errMsg) => {
onFailed(errMsg);
});
}
/// <summary>
/// Downloads AssetBundles from server
/// </summary>
/// <returns>The assetbundles from server.</returns>
/// <param name="onFinish">onFinish callback.</param>
/// <param name="onFailed">onFailed callback. Return error reason</param>
public IEnumerator DownloadAssetBundlesFromServer(Action onFinish, Action <string> onFailed)
{
currentDownloadIndex = 0;
totalDownloaded = 0;
downloadedSize = 0;
totalSize = 0;
bool isSuccess = false;
bool isDownloadVersionFileFinish = false;
StartCoroutine(GetAssetBundleVersionFile((fileUrl) => {
Debug.Log("Download version file finished: " + fileUrl);
isSuccess = true;
isDownloadVersionFileFinish = true;
}, (downloadPath, error) => {
isDownloadVersionFileFinish = true;
Debug.LogError("Can not download version file from: " + downloadPath);
onFailed(error);
}));
yield return(new WaitUntil(() => {
return isDownloadVersionFileFinish;
}));
if (!isSuccess)
{
yield break;
}
if (_downloadList.Count == 0)
{
Debug.Log("All AssetBundles were downloaded!");
}
bool isError = false;
List <AssetBundleFileDownload> _downloadProcessList = new List <AssetBundleFileDownload> ();
//Process download file
while (true)
{
if (_downloadProcessList.Count < AssetBundleSettings.DOWNLOAD_NUM_FILE_AT_TIME)
{
if (currentDownloadIndex <= _downloadList.Count - 1)
{
AssetBundleFileDownload dlObj = new AssetBundleFileDownload(AssetBundleSettings.GetAssetBundleServerURL(), _downloadList [currentDownloadIndex]);
_downloadProcessList.Add(dlObj);
currentDownloadIndex++;
}
if (currentDownloadIndex > _downloadList.Count)
{
currentDownloadIndex = _downloadList.Count;
}
}
for (int i = 0; i < _downloadProcessList.Count; i++)
{
AssetBundleFileDownload dlObj = _downloadProcessList[i];
if (!dlObj.isProcessing)
{
DownloadFile(true, dlObj,
(www) => {
totalDownloaded++;
downloadedSize += dlObj.GetDownloadedSize();
dlObj.Dispose();
_downloadProcessList.Remove(dlObj);
}, (errMsg) => {
isError = true;
if (onFailed != null)
{
onFailed(errMsg);
}
});
}
}
if (isError)
{
yield break;
}
if (totalDownloaded == _downloadList.Count)
{
yield return(null);
onFinish();
yield break;
}
yield return(null);
}
}
