private IEnumerator AppendAB(string fileName, FileList fileListLocal)
{
//下载资源文件
UnityWebRequest unityWebRequest = UnityWebRequest.Get(serverName + fileName); //不同协程的资源可能存在竞争，最后用局部变量，或者解决竞争关系
yield return(unityWebRequest.SendWebRequest());
using (FileStream fs = File.OpenWrite(Application.persistentDataPath + "/" + fileName))
{
fs.Write(unityWebRequest.downloadHandler.data, 0, unityWebRequest.downloadHandler.data.Length);
}
//下载文件清单
unityWebRequest = UnityWebRequest.Get(serverName + fileName + ".manifest");
yield return(unityWebRequest.SendWebRequest());
using (FileStream fs = File.OpenWrite(Application.persistentDataPath + "/" + fileName + ".manifest"))
{
fs.Write(unityWebRequest.downloadHandler.data, 0, unityWebRequest.downloadHandler.data.Length);
}
//更新json中的MD5码
fileListLocal.ToDictionaary().Add(fileName, Ablib.GetMd5(Application.persistentDataPath + "/" + fileName));
File.WriteAllText(Application.persistentDataPath + "/filelist.json", JsonUtility.ToJson(fileListLocal));
Debug.Log($"Append {fileName} Over, downLoadOverCout : {++downLoadOverCount}");
}
public static void Build()
{
Debug.Log("Building...");
// BuildPipeline.BuildAssetBundles("AssetBundles", BuildAssetBundleOptions.None, BuildTarget.StandaloneWindows); //Applicateion.datePatch指向Asset文件夹
//生成fileList.json(filename, md5)
string[] files = Directory.GetFiles(Application.dataPath + "/../AssetBundles/StandaloneWindows/", "*_ab");
Dictionary <string, string> fileDictionary = new Dictionary <string, string>();
foreach (var file in files)
{
string fileName = new FileInfo(file).Name;
fileDictionary[fileName] = Ablib.GetMd5(file);
}
//别忘了AssetBundles也要加入文件清单
fileDictionary["StandaloneWindows"] = Ablib.GetMd5(Application.dataPath + "/../AssetBundles/StandaloneWindows/StandaloneWindows");
File.WriteAllText(Application.dataPath + "/../AssetBundles/StandaloneWindows/filelist.json", JsonUtility.ToJson(new FileList(fileDictionary)));
//生成resourceList.josn(abName, prefabName)
string[] resourceLists = Directory.GetFiles(Application.dataPath + "/../AssetBundles/StandaloneWindows/", "*.manifest");
Dictionary <string, string> resourceListDictionary = new Dictionary <string, string>();
foreach (var file in resourceLists)
{
FileInfo fileInfo = new FileInfo(file);
string fileName = fileInfo.Name;
string[] fileLines = File.ReadAllLines(fileInfo.DirectoryName + "/" + fileName);
//读取Assets到Dependencies中的内容
var state = 0;
foreach (var str in fileLines)
{
if (state == 0) //表示尚未读取到"Assets"
{
if (str.Contains("Assets:"))
{
state = 1;
}
}
else if (state == 1) //读到Assets,开始处理
{
if (str.Contains("Dependencies:"))
{
state = 2;
}
else
{
string[] subStrings = str.Split(' ');
resourceListDictionary.Add(subStrings[subStrings.Length - 1], fileName);
}
}
else if (state == 2)
{
break;
}
}
}
File.WriteAllText(Application.dataPath + "/../AssetBundles/StandaloneWindows/resourceList.json", JsonUtility.ToJson(new FileList(resourceListDictionary)));
// 拷贝打包文件到AssetString目录
if (Directory.Exists(Application.streamingAssetsPath))
{
Directory.Delete(Application.streamingAssetsPath, true);
}
Directory.CreateDirectory(Application.streamingAssetsPath);
Ablib.CopyDirectory(Application.dataPath + "/../AssetBundles/StandaloneWindows", Application.streamingAssetsPath);
Debug.Log("Build Finish");
}
IEnumerator Start()
{
print(Application.persistentDataPath + $"Start DownLoad AB {++assetCount}");
//第一次启动程序，把StreamingAssetsPath中的资源包移动到PersistantDataPath中
if (PlayerPrefs.GetInt("IsFirstLoad", 1) == 1)
{
print("FirstLoad");
Ablib.CopyDirectory(Application.streamingAssetsPath, Application.persistentDataPath);
PlayerPrefs.SetInt("IsFirstLoad", 0);
shouldUpdateLua = true;
}
//读取本地文件的MD5码
FileList fileListLocal = JsonUtility.FromJson <FileList>(File.ReadAllText(Application.persistentDataPath + "/filelist.json"));
//读取服务器上的MD5码
UnityWebRequest unityWebRequest = UnityWebRequest.Get(serverName + "filelist.json");
yield return(unityWebRequest.SendWebRequest());
FileList fileListService = JsonUtility.FromJson <FileList>(unityWebRequest.downloadHandler.text);
//本地和服务器相比较,用于新增和文件改变
foreach (var fileMd5 in fileListService.ToDictionaary())
{
if (!fileListLocal.ToDictionaary().ContainsKey(fileMd5.Key)) //没有这个文件，表示新增
{
print($"Add New File : {fileMd5.Key}, assetCount : {++assetCount}");
StartCoroutine(AppendAB(fileMd5.Key, fileListLocal));
if (fileMd5.Key == luaABName)
{
shouldUpdateLua = true;
}
}
else //更新
{
string md5Local = fileListLocal.ToDictionaary()[fileMd5.Key];
string md5Server = fileMd5.Value;
if (md5Local != md5Server)
{
print($"Changed File : ${fileMd5.Key}, assetCount : {++assetCount}");
StartCoroutine(UpdateAB(fileMd5.Key, fileListLocal));
if (fileMd5.Key == luaABName)
{
shouldUpdateLua = true;
}
}
}
}
// 服务器和本地比较，用于删除多余文件
foreach (var fileMd5 in fileListLocal.ToDictionaary())
{
if (!fileListService.ToDictionaary().ContainsKey(fileMd5.Key)) //表明服务器已经删除了该文件
{
StartCoroutine(DeleteAB(fileMd5.Key, fileListLocal));
}
}
//下载资源对应AB表:
UnityWebRequest webRequestResourceList = UnityWebRequest.Get(serverName + "resourceList.json");
yield return(webRequestResourceList.SendWebRequest());
resToAB = JsonUtility.FromJson <FileList>(webRequestResourceList.downloadHandler.text).ToDictionaary();
print($"Wait for DownLoad AB {++downLoadOverCount}");
}