public bool ExeCommand(CommandEnum command)
{
if (command == CommandEnum.UpdateRemoteAssetBundle)
{
if (Config.UseAssetBundle)
{
Debug.Log("开始下载资源");
StartCoroutine(CheckAndDownloadAssetBundle());
}
else
{
MessageCenter.Dispatch(MsgEnum.ABLoadingFinish);
CommandController.Instance.Execute(CommandEnum.StartLuaMain);
}
return(true);
}
return(false);
}
/// <summary>
/// 启动更新下载，这里只是个思路演示，此处可启动线程下载更新
/// </summary>
IEnumerator CheckAndDownloadAssetBundle()
{
MessageCenter.Dispatch(MsgEnum.ABLoadingBegin);
MessageCenter.Dispatch(MsgEnum.ABLoadingProgress, 0);
//读取本地MD5文件
localFiles = new Dictionary <string, string>();
string localFilesPath = LuaConst.localABPath + "/" + LuaConst.MD5FileName;
Debug.Log("localFilesPath: " + localFilesPath);
if (File.Exists(localFilesPath))
{
localFiles = ParseKeyValue(File.ReadAllText(localFilesPath));
}
//下载远程MD5文件
string filesUrl = Config.RemoteUrl + "/" + LuaConst.MD5FileName;
UnityWebRequest request = UnityWebRequest.Get(filesUrl);
yield return(request.SendWebRequest());
if (request.error != null)
{
Debug.LogError("[ " + filesUrl + " ]" + request.error);
yield break;
}
if (!Directory.Exists(LuaConst.localABPath))
{
Directory.CreateDirectory(LuaConst.localABPath);
}
Dictionary <string, string> newestFiles = ParseKeyValue(request.downloadHandler.text);
Dictionary <string, string> reloadFiles = new Dictionary <string, string>();
foreach (var item in newestFiles)
{
bool localHaveKey = localFiles.ContainsKey(item.Key);
if (!localHaveKey)
{
//是新的文件，加入加载
reloadFiles.Add(item.Key, item.Value);
}
else
{
bool fileExists = File.Exists(LuaConst.localABPath + "/" + item.Key);
if (!fileExists)
{
//本地找不到，加入下载
reloadFiles.Add(item.Key, item.Value);
}
else
{
string localHash = localFiles[item.Key];
string remoteHash = newestFiles[item.Key];
bool md5Match = localHash.Equals(remoteHash);
if (!md5Match)
{
//文件有改动，加入下载
reloadFiles.Add(item.Key, item.Value);
}
}
}
}
int maxCount = reloadFiles.Count;
Debug.Log("下载资源数量：" + maxCount);
int loadedCount = 0;
foreach (var item in reloadFiles)
{
string url = Config.RemoteUrl + "/" + item.Key;
Debug.Log("下载资源：" + url);
UnityWebRequest resRequest = UnityWebRequest.Get(url);
yield return(resRequest.SendWebRequest());
if (resRequest.error != null)
{
Debug.LogError(" [ " + url + " ] " + resRequest.error);
MessageCenter.Dispatch(MsgEnum.ABLoadingError, resRequest.error);
}
string savePath = LuaConst.localABPath + "/" + item.Key;
string saveDir = savePath.Substring(0, savePath.LastIndexOf("/"));
if (!Directory.Exists(saveDir))
{
Directory.CreateDirectory(saveDir);
}
File.WriteAllBytes(savePath, resRequest.downloadHandler.data);
loadSuccessFiles.Add(item.Key, item.Value);
loadedCount++;
float progress = loadedCount / (float)maxCount;
Debug.Log("下载进度：" + progress);
MessageCenter.Dispatch(MsgEnum.ABLoadingProgress, progress);
}
UpdateLocalFiles();
MessageCenter.Dispatch(MsgEnum.ABLoadingProgress, 1);
yield return(new WaitForEndOfFrame());
MessageCenter.Dispatch(MsgEnum.ABLoadingFinish);
CommandController.Instance.Execute(CommandEnum.StartLuaMain);
}