/// <summary>
/// 拷贝初始目录所有文件
/// </summary>
IEnumerator CopyAllInitialFiles()
{
//拷贝所有配置文件
yield return(DownLoadCommon.StartCopyInitialFile(DownLoadCommon.MAIN_MANIFEST_FILE_NAME));
string mainifestFullName = DownLoadCommon.GetFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
AssetBundleManifest initial = DownLoadCommon.LoadMainManifestByPath(mainifestFullName);
if (initial == null)
{
yield break;
}
//拷贝AssetBundle文件
string[] all_assetbundle = initial.GetAllAssetBundles();
this.InitTotal = all_assetbundle.Length;
for (int i = 0; i < all_assetbundle.Length; ++i)
{
this.InitCurrent = i;
string name = all_assetbundle[i];
yield return(DownLoadCommon.StartCopyInitialFile(name));
}
//拷贝结束资源 保证安装包拷贝结束
yield return(DownLoadCommon.StartCopyInitialFile(DownLoadCommon.END_RESOUCES_FILE_NAME));
}
/// <summary>
/// 更新AssetBundle
/// </summary>
IEnumerator StartUpdateAssetBundle()
{
Debug.Log("AssetUpdater:StartUpdateAssetBundle");
if (ErrorCode != EmErrorCode.None)
{
yield break;
}
UpdateCompleteValue(0f, 0f);
////载入MainManifest
AssetBundleManifest manifest = ZTAssetBundleManager.GetInstance().MainManifest;
//载入新的ResourcesManifest
string file = DownLoadCommon.GetCacheFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
AssetBundleManifest new_manifest = DownLoadCommon.LoadMainManifestByPath(file);
if (new_manifest == null)
{
Error(EmErrorCode.LoadNewMainManifestFailed
, "Can't find new version MainManifest!");
yield break;
}
////获取需下载的资源列表与删除的资源的列表
List <string> download_files = new List <string>();
List <string> delete_files = new List <string>();
CompareAssetBundleDifference(ref download_files, ref delete_files
, manifest, new_manifest);
//删除已废弃的文件
if (delete_files.Count > 0)
{
for (int i = 0; i < delete_files.Count; ++i)
{
string full_name = DownLoadCommon.GetFileFullName(delete_files[i]);
if (File.Exists(full_name))
{
File.Delete(full_name);
yield return(0);
}
}
}
//更新所有需下载的资源
_ab_download = new AssetBundleDownloader(_current_ab_url);
_ab_download.Start(DownLoadCommon.PATH, download_files);
while (!_ab_download.IsDone)
{
UpdateCompleteValue(_ab_download.CompletedSize, _ab_download.TotalSize);
yield return(0);
}
if (_ab_download.IsFailed)
{
Error(EmErrorCode.DownloadAssetBundleFailed);
yield break;
}
}
/// <summary>
/// 初始化
/// </summary>
IEnumerator Preprocess()
{
//创建资源根目录
if (!Directory.Exists(DownLoadCommon.PATH))
{
Directory.CreateDirectory(DownLoadCommon.PATH);
}
//判断主资源文件是否存在，不存在则拷贝备份资源至资源根目录
bool do_initial_copy = false;
string resources_manifest_file = DownLoadCommon.GetFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
if (!File.Exists(resources_manifest_file))
{
do_initial_copy = true;
}
else
{
// 拷贝安装包初始化目录中的ResourcesManifest，并判断是否重新拷贝初始化目录下的所有文件
//string initial_full_name = DownLoadCommon.GetInitialFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
//string cache_full_name = DownLoadCommon.GetCacheFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
//yield return DownLoadCommon.StartCopyFile(initial_full_name, cache_full_name);
////判断安装包初始目录是否完整
//ResourcesManifest initial = DownLoadCommon.LoadResourcesManifestByPath(cache_full_name);
//if (initial == null)
//{
// Error(EmErrorCode.PreprocessError
// , "Initial path don't contains "
// + DownLoadCommon.RESOURCES_MANIFEST_FILE_NAME + "!");
// yield break;
//}
//ResourcesManifest current = DownLoadCommon.LoadResourcesManifestByPath(full_name);
//if (current == null)
// do_initial_copy = true;
//else if (current.Data.Version < initial.Data.Version)
// do_initial_copy = true;
//删除缓存中的文件
//if (File.Exists(cache_full_name))
// File.Delete(cache_full_name);
}
if (do_initial_copy)
{
yield return(CopyAllInitialFiles());
}
PreprocessFinished();
}
/// <summary>
/// 判断一个AssetBundle是否存在缓存
/// </summary>
public bool IsExist(string assetbundlename)
{
if (!IsReady)
{
return(false);
}
if (string.IsNullOrEmpty(assetbundlename))
{
return(false);
}
return(File.Exists(DownLoadCommon.GetFileFullName(assetbundlename)));
}
/// <summary>
/// 拷贝文件并覆盖旧数据文件
/// </summary>
IEnumerator StartCopyCacheFile()
{
Debug.Log("AssetUpdater:StartCopyCacheFile");
if (ErrorCode != EmErrorCode.None)
{
yield break;
}
string str = DownLoadCommon.GetCacheFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
string dest = DownLoadCommon.GetFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
UpdateCompleteValue(1, 1);
yield return(DownLoadCommon.StartCopyFile(str, dest));
}
IEnumerator LoadAsyncCoroutine(string assetbundlename)
{
//临时
if (!IsExist(assetbundlename))
{
_loadSyncAbNames.RemoveAt(0);
if (_loadSyncAbList.ContainsKey(assetbundlename))
{
List <Action <AssetBundle> > callbackList = _loadSyncAbList[assetbundlename];
for (int i = 0; i < callbackList.Count; i++)
{
Action <AssetBundle> callback = callbackList[i];
callback(null);
}
_loadSyncAbList.Remove(assetbundlename);
}
yield break;
}
string assetbundle_path = DownLoadCommon.GetFileFullName(assetbundlename);
AssetBundleCreateRequest abcr = AssetBundle.LoadFromFileAsync(assetbundle_path);
//Debug.LogWarning(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>" + assetbundlename);
while (!abcr.isDone)
{
yield return(null);
}
//Debug.LogWarning("<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<" + assetbundlename);
if (null != abcr.assetBundle)
{
SaveInCahce(assetbundlename, abcr.assetBundle);
_loadSyncAbNames.RemoveAt(0);
}
if (_loadSyncAbList.ContainsKey(assetbundlename))
{
List <Action <AssetBundle> > callbackList = _loadSyncAbList[assetbundlename];
for (int i = 0; i < callbackList.Count; i++)
{
Action <AssetBundle> callback = callbackList[i];
callback(abcr.assetBundle);
}
_loadSyncAbList.Remove(assetbundlename);
}
}
/// <summary>
/// 拷贝初始目录所有文件
/// </summary>
IEnumerator CopyAllInitialFiles()
{
//拷贝所有配置文件
yield return(DownLoadCommon.StartCopyInitialFile(DownLoadCommon.MAIN_MANIFEST_FILE_NAME));
string initial_full_name = DownLoadCommon.GetFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
AssetBundleManifest initial = DownLoadCommon.LoadMainManifestByPath(initial_full_name);
if (initial == null)
{
yield break;
}
//拷贝AssetBundle文件
string[] all_assetbundle = initial.GetAllAssetBundles();
for (int i = 0; i < all_assetbundle.Length; ++i)
{
string name = all_assetbundle[i];
yield return(DownLoadCommon.StartCopyInitialFile(name));
}
//ResourcesManifest resources_manifest = DownLoadCommon.LoadResourcesManifest();
//if (resources_manifest == null)
//{
// Debug.LogWarning("Can't load ResourcesManifest file!");
// yield break;
//}
//var itr = resources_manifest.Data.AssetBundles.GetEnumerator();
//while (itr.MoveNext())
//{
// if (itr.Current.Value.IsNative)
// {
// string assetbundlename = itr.Current.Value.AssetBundleName;
// string dest = DownLoadCommon.GetFileFullName(assetbundlename);
// //保证路径存在
// string directory = Path.GetDirectoryName(dest);
// if (!Directory.Exists(directory))
// Directory.CreateDirectory(directory);
// //拷贝数据
// yield return DownLoadCommon.StartCopyInitialFile(assetbundlename);
// }
//}
//itr.Dispose();
}
/// <summary>
/// 初始化(检测资源完整性)
/// </summary>
IEnumerator Preprocess()
{
//创建资源根目录
if (!Directory.Exists(DownLoadCommon.PATH))
{
Directory.CreateDirectory(DownLoadCommon.PATH);
}
//判断主资源文件 和 初始化结束资源 是否存在，不存在则拷贝备份资源至资源根目录
string resources_manifest_file = DownLoadCommon.GetFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
string resources_end_File = DownLoadCommon.GetFileFullName(DownLoadCommon.END_RESOUCES_FILE_NAME);
if (!File.Exists(resources_manifest_file) || !File.Exists(resources_end_File))
{
yield return(CopyAllInitialFiles());
}
PreprocessFinished();
}
/// <summary>
/// 加载AssetBundle
/// </summary>
AssetBundle LoadAssetBundle(string assetbundlename)
{
if (assetbundlename == null || MainManifest == null)
{
return(null);
}
AssetBundle ab = LoadInCahce(assetbundlename);
if (null != ab)
{
return(ab);
}
string assetbundle_path = DownLoadCommon.GetFileFullName(assetbundlename);
if (System.IO.File.Exists(assetbundle_path))
{
ab = AssetBundle.LoadFromFile(assetbundle_path);
SaveInCahce(assetbundlename, ab);
}
return(ab);
}
/// <summary>
/// 载入Manifest
/// </summary>
public static AssetBundleManifest LoadMainManifest()
{
string file = DownLoadCommon.GetFileFullName(DownLoadCommon.MAIN_MANIFEST_FILE_NAME);
return(LoadMainManifestByPath(file));
}
//<summary>
// 比较AssetBundle差异，获得下载列表与删除列表
//</summary>
static void CompareAssetBundleDifference(ref List <string> download_files
, ref List <string> delete_files
, AssetBundleManifest old_manifest
, AssetBundleManifest new_manifest
)
{
if (download_files != null)
{
download_files.Clear();
}
if (delete_files != null)
{
delete_files.Clear();
}
if (old_manifest == null)
{
return;
}
if (new_manifest == null)
{
return;
}
//采用位标记的方式判断资源
//位标记： 0： 存在旧资源中 1： 存在新资源中 2：本地资源标记
int old_version_bit = 0x1; // 存在旧资源中
int new_version_bit = 0x2; // 存在新资源中
Dictionary <string, int> temp_dic = new Dictionary <string, int>();
//标记旧资源
string[] all_assetbundle = old_manifest.GetAllAssetBundles();
for (int i = 0; i < all_assetbundle.Length; ++i)
{
string name = all_assetbundle[i];
_SetDictionaryBit(ref temp_dic, name, old_version_bit);
}
//标记新资源
string[] new_all_assetbundle = new_manifest.GetAllAssetBundles();
for (int i = 0; i < new_all_assetbundle.Length; ++i)
{
string name = new_all_assetbundle[i];
_SetDictionaryBit(ref temp_dic, name, new_version_bit);
}
//获得对应需操作的文件名， 优先级： both > add > delete
//both: 第0位与第1位都被标记的
//delete: 仅第0位被标记的
//add: 第2位未标记，且第3位被标记的
int both_bit = old_version_bit | new_version_bit; // 二个版本资源都存在
List <string> add_files = new List <string>();
List <string> both_files = new List <string>();
var itr = temp_dic.GetEnumerator();
while (itr.MoveNext())
{
string name = itr.Current.Key;
int mask = itr.Current.Value;
if ((mask & new_version_bit) == new_version_bit &&
(mask & old_version_bit) == 0)
{
add_files.Add(name);
}
else if ((mask & both_bit) == both_bit)
{
both_files.Add(name);
}
else if ((mask & old_version_bit) == old_version_bit)
{
delete_files.Add(name);
}
}
itr.Dispose();
//载入下载缓存数据
DownloadCache download_cache = new DownloadCache();
download_cache.Load(DownLoadCommon.DOWNLOADCACHE_FILE_PATH);
if (!download_cache.HasData())
{
download_cache = null;
}
//记录需下载的文件
{
//加入新增的文件
download_files.AddRange(add_files);
//比较所有同时存在的文件，判断哪些需要更新
for (int i = 0; i < both_files.Count; ++i)
{
string name = both_files[i];
string full_name = DownLoadCommon.GetFileFullName(name);
if (File.Exists(full_name))
{
//判断哈希值是否相等
string old_hash = old_manifest.GetAssetBundleHash(name).ToString();
string new_hash = new_manifest.GetAssetBundleHash(name).ToString();
if (old_hash.CompareTo(new_hash) == 0)
{
continue;
}
download_files.Add(name);
}
else
{
download_files.Add(name);
}
}
//过滤缓存中已下载的文件
if (download_cache != null)
{
var cache_itr = download_cache.Data.AssetBundles.GetEnumerator();
while (cache_itr.MoveNext())
{
DownloadCacheData.AssetBundle elem = cache_itr.Current.Value;
string name = elem.AssetBundleName;
string full_name = DownLoadCommon.GetFileFullName(name);
if (File.Exists(full_name))
{
string cache_hash = elem.Hash;
string new_hash = new_manifest.GetAssetBundleHash(name).ToString();
if (!string.IsNullOrEmpty(cache_hash) &&
cache_hash.CompareTo(new_hash) == 0)
{
download_files.Remove(name);
}
}
}
}
}
}
private Dictionary <string, Object> _assetDic; //已经读取资源
/// <summary>
/// 初始化
/// </summary>
/// <param name="abName"></param>
public ZTAssetBundle(string abName)
{
this.AbPath = DownLoadCommon.GetFileFullName(abName);;
this._assetDic = new Dictionary <string, Object>();
this.Load();
}