public static IEnumerator Start()
{
float startTime = Time.realtimeSinceStartup;
#if (UNITY_EDITOR && !USE_CDN) || DISABLE_CDN
yield break;
#endif
//初始化AAS
yield return(Addressables.InitializeAsync());
LogTimeDurFormat("Addressables.InitializeAsync", ref startTime, true);
//修改provider fixed AAS bug
foreach (var provider in Addressables.ResourceManager.ResourceProviders)
{
if (typeof(TextDataProvider).IsAssignableFrom(provider.GetType()))
{
(provider as TextDataProvider).IgnoreFailures = false;
}
}
LogTimeDurFormat("foreach Addressables.ResourceManager.ResourceProviders ", ref startTime, true);
//拉取本地资源版本号
var localVersion = Application.version;
if (File.Exists(localVersionPath))
{
var localVersionHandle = LoadText(localVersionPath, "LocalVersion");;
yield return(localVersionHandle);
localVersion = localVersionHandle.Result;
Addressables.Release(localVersionHandle);
}
var localResVersion = ResVersion.parseVersion(localVersion);
var libResVersion = ResVersion.parseVersion(Application.version);
LogFormat("local version:{0},library version:{1}", localVersion, Application.version);
if (null == localResVersion || null == libResVersion)
{
yield break;
}
//包内版本大于本地持续化版本号（安装了新包） 清除本地缓存数据
if (libResVersion.high > localResVersion.high || libResVersion.mid > localResVersion.mid)
{
LogFormat("清除本地缓存");
Caching.ClearCache();
File.Delete(localCatalogPath);
File.Delete(localVersionPath);
File.Delete(PersistCDNConfigPath);
if (Directory.Exists(LocalHotAssetBundlePath))
{
Directory.Delete(LocalHotAssetBundlePath, true);
}
//yield break;
}
LogTimeDurFormat("load localVersion", ref startTime, true);
//读取CDN 地址配置
yield return(LoadCDNConfig());
LogTimeDurFormat("load cdn config", ref startTime, true);
//拉取CDN资源版本号
var remoteVersionHandle = LoadText(remoteVersionUrl, "RemoteVersion");
yield return(remoteVersionHandle);
var remoteVersion = remoteVersionHandle.Result;
Addressables.Release(remoteVersionHandle);
LogTimeDurFormat("load remoteVersion", ref startTime, true);
if (null == remoteVersion)
{
LogErrorFormat("远程资源版本号加载失败");
yield break;
}
LogFormat("remoteVersion:{0}", remoteVersion);
var remoteResVersion = ResVersion.parseVersion(remoteVersion);
if (null == remoteResVersion)
{
yield break;
}
if (remoteResVersion.high < localResVersion.high || (remoteResVersion.high == localResVersion.high && remoteResVersion.mid < localResVersion.mid))
{
LogFormat("服务器资源版本过低");
yield break;
}
if (remoteResVersion.high > localResVersion.high || remoteResVersion.mid > localResVersion.mid)
{
LogFormat("需要更新整包");
yield break;
}
else if (remoteResVersion.small > localResVersion.small)
{
LogFormat("need hot update");
//拉取CDN catalog 信息
LogFormat("remoteCatalogUrl:" + remoteCatalogUrl);
var remoteCatalogHandle = LoadText(remoteCatalogUrl, "RemoteCatalog");
yield return(remoteCatalogHandle);
var remoteCatalog = remoteCatalogHandle.Result;
Addressables.Release(remoteCatalogHandle);
if (null == remoteCatalog)
{
LogErrorFormat("远程资源加载失败");
yield break;
}
//将最近的catalog缓存到本地持续化目录
File.WriteAllText(localCatalogPath, remoteCatalog);
File.WriteAllText(localVersionPath, remoteVersion);
LogTimeDurFormat("load remote catalog", ref startTime, true);
}
LogFormat("localCatalogPath:" + localCatalogPath);
//本地持续化目录没有缓存catalog
if (!File.Exists(localCatalogPath))
{
yield break;
}
//对比catalog 解析出需要热更的bundle
LogFormat("localCatalogPath:" + localCatalogPath);
var localCatalogLocation = new ResourceLocationBase("LocalCatalog", localCatalogPath, typeof(JsonAssetProvider).FullName, typeof(ContentCatalogData));
var localCatalogHandle = Addressables.LoadAssetAsync <ContentCatalogData>(localCatalogLocation);
yield return(localCatalogHandle);
var data = localCatalogHandle.Result;
Addressables.Release(localCatalogHandle);
LogTimeDurFormat("load local catalog", ref startTime, true);
ResourceLocationMap RemoteMap = data.CreateLocator(null);
var newBundles = parseBundleList(RemoteMap, "remote");
LogTimeDurFormat("foreach remote catalog", ref startTime, true);
dirtyBundle = null;
// Addressables.CheckForCatalogUpdates(false);
foreach (ResourceLocationMap item in Addressables.ResourceLocators)
{
if ("AddressablesMainContentCatalog" == item.LocatorId)
{
var oldBundles = parseBundleList(item, "local");
LogTimeDurFormat("load local catalog", ref startTime, true);
dirtyBundle = compareResLocation(newBundles, oldBundles);
Addressables.RemoveResourceLocator(item);
Addressables.AddResourceLocator(RemoteMap);
LogTimeDurFormat("compare catalog", ref startTime, true);
break;
}
}
if (null == dirtyBundle || 0 == dirtyBundle.Count)
{
yield break;
}
//该方法计算下载大小只对远程bundle有用
//long size = 0;
//foreach (var key in dirtyBundle)
//{
// IResourceLocation location;
// newBundles.TryGetValue(key, out location);
// var sizeData = location.Data as ILocationSizeData;
// if (sizeData != null)
// size += sizeData.ComputeSize(location, Addressables.ResourceManager);
//}
// LogFormat("需要下载的补丁大小:{0}", size);
yield return(DownLoadRemoteAssetBundles(dirtyBundle));
LogTimeDurFormat("dowmload hot file", ref startTime, true);
Addressables.InternalIdTransformFunc = convertBundleInternalId;
LogFormat("下载完，预加载到内存");
AsyncOperationHandle handler = Addressables.DownloadDependenciesAsync(dirtyBundle, Addressables.MergeMode.Union);
while (!handler.IsDone)
{
yield return(null);
}
Addressables.Release(handler);
LogTimeDurFormat("download dependency", ref startTime, true);
yield return(null);
}
/// <summary>
/// Remove a locator;
/// </summary>
/// <param name="locator">The locator to remove.</param>
public static void RemoveResourceLocator(IResourceLocator locator)
{
Addressables.RemoveResourceLocator(locator);
}