IEnumerator OnCheckInitialFile()
{
//创建资源根目录
if (!Directory.Exists(PathResolver.PATH))
{
Directory.CreateDirectory(PathResolver.PATH);
}
//判断主文件是否存在，不存在则拷贝本地备份
var initialCopy = false;
var resManifestFile = PathResolver.GetFileFullName(PathResolver.RESOURCES_MANIFEST_FILE_NAME);
if (!File.Exists(resManifestFile))
{
initialCopy = true;
}
else
{
var fullName = PathResolver.GetFileFullName(PathResolver.RESOURCES_MANIFEST_FILE_NAME);
var initialFullName = PathResolver.GetInitialFileFullName(PathResolver.RESOURCES_MANIFEST_FILE_NAME);
var cacheFullName = PathResolver.GetCacheFileFullName(PathResolver.RESOURCES_MANIFEST_FILE_NAME);
yield return(FileHelper.CopyStreamingAssetsToFile(initialFullName, cacheFullName));
//判断包内初始目录是否完整
var initialFile = PathResolver.LoadResourceManifestByPath(initialFullName);
if (null == initialFile)
{
Error(ErrorCode.LoadResourcesMainFestFailed, "Initial path don't contains" + PathResolver.RESOURCES_MANIFEST_FILE_NAME + "!");
yield break;
}
//全局路径是否需要拷贝
var current = PathResolver.LoadResourceManifestByPath(fullName);
if (null == current)
{
initialCopy = true;
}
else if (current.data.version < initialFile.data.version)
{
initialCopy = true;
}
//删除缓存文件
if (File.Exists(cacheFullName))
{
File.Delete(cacheFullName);
}
}
if (initialCopy)
{
yield return(CopyAllInitialFiles());
}
}
/// <summary>
/// 拷贝缓存数据
/// </summary>
IEnumerator StartCopyCacheFile()
{
if (errorCode != ErrorCode.None)
{
yield break;
}
for (int i = 0; i < PathResolver.MAIN_CONFIG_NAME_ARRAY.Length; ++i)
{
var file = PathResolver.MAIN_CONFIG_NAME_ARRAY[i];
var res = PathResolver.GetCacheFileFullName(file);
var dest = PathResolver.GetFileFullName(file);
UpdateCompleteValue(i, PathResolver.MAIN_CONFIG_NAME_ARRAY.Length);
yield return(FileHelper.CopyStreamingAssetsToFile(res, dest));
}
}
/// <summary>
/// 写入下载缓存信息用于断点续传
/// </summary>
void SaveDownloadCacheData()
{
if (currentState < State.UpdateAssetBundle)
{
return;
}
if (!Directory.Exists(PathResolver.CACHE_PATH))
{
return;
}
var manifestPath = PathResolver.GetCacheFileFullName(PathResolver.MAIN_MANIFEST_FILE_NAME);
var manifestFile = PathResolver.LoadMainManifestByPath(manifestPath);
if (null == manifestFile)
{
return;
}
//加载缓存信息文件
var cache = new DownloadCache();
cache.Load(PathResolver.DOWNLOADCACHE_FILE_PATH);
//获取下载器完成任务列表
if (m_Downloader != null && m_Downloader.completeDownloads != null && m_Downloader.completeDownloads.Count > 0)
{
foreach (var name in m_Downloader.completeDownloads)
{
var hashCode = manifestFile.GetAssetBundleHash(name);
if (hashCode.isValid && !cache.data.assetBundles.ContainsKey(name))
{
var elem = new DownloadCacheData.AssetBundle()
{
assetbundleName = name, hash = hashCode.ToString()
};
Debug.Log(cache.data.assetBundles.Count + " - Cache Add:" + name);
cache.data.assetBundles.Add(name, elem);
}
}
}
if (!cache.IsEmpty())
{
cache.Save(PathResolver.DOWNLOADCACHE_FILE_PATH);
}
}
/// <summary>
/// 更新AB资源
/// </summary>
/// <returns></returns>
IEnumerator StartUpdateAssetBundle()
{
if (errorCode != ErrorCode.None)
{
yield break;
}
UpdateCompleteValue(0f, 0f);
//载入ResourceManifest
var oldResManifestFile = OnLoadResourceFile();
var path = PathResolver.GetCacheFileFullName(PathResolver.RESOURCES_MANIFEST_FILE_NAME);
var newResManifestFile = PathResolver.LoadResourceManifestByPath(path);
if (null == newResManifestFile)
{
Error(ErrorCode.loadNewResourcesManiFestFailed, "Can't Load new version ResourceManifest");
yield break;
}
//载入MainManifest
var oldManifest = PathResolver.LoadMainManifest();
var newManifest = PathResolver.LoadCacheMainManifest();
if (null == newManifest)
{
Error(ErrorCode.LoadNewMainManifestFailed, "can't load new version MainManifest");
yield break;
}
var downFiles = new List <string>();
var deleteFiles = new List <string>();
CompareAsset(ref downFiles, ref deleteFiles, oldManifest, newManifest, oldResManifestFile, newResManifestFile);
//删除废气文件
if (deleteFiles.Count > 0)
{
for (int i = 0; i < deleteFiles.Count; ++i)
{
var fullName = PathResolver.GetFileFullName(deleteFiles[i]);
if (File.Exists(fullName))
{
File.Delete(fullName);
yield return(0);
}
}
}
//更新下载资源
m_Downloader = new AssetBundleDownloader(m_CurUrl);
m_Downloader.Start(PathResolver.PATH, downFiles, newResManifestFile);
while (!m_Downloader.isDone)
{
UpdateCompleteValue(m_Downloader.completedSize, m_Downloader.totalSize);
yield return(0);
}
if (m_Downloader.isFailed)
{
Error(ErrorCode.DonwloadAssetBundleFailed);
yield break;
}
}
