/// <summary>
/// 载入AssetBundle
/// </summary>
/// <param name="abname"></param>
/// <returns></returns>
public AssetBundle LoadAssetBundle(string abname)
{
if (!abname.EndsWith(GameDefine.ExtName))
{
abname += GameDefine.ExtName;
}
AssetBundle bundle = null;
if (!bundles.ContainsKey(abname))
{
byte[] stream = null;
string uri = GameDefine.GetAbDataPath() + abname;
Debug.LogWarning("LoadFile::>> " + uri);
LoadDependencies(abname);
stream = File.ReadAllBytes(uri);
bundle = AssetBundle.LoadFromMemory(stream); //关联数据的素材绑定
bundles.Add(abname, bundle);
}
else
{
bundles.TryGetValue(abname, out bundle);
}
return(bundle);
}
/// <summary>
/// 释放资源
/// </summary>
public void CheckExtractResource()
{
//如果游戏资源已经释放到本地
if (Directory.Exists(GameDefine.GetAbDataPath()) && File.Exists(GameDefine.GetAbDataPath() + "files.txt"))
{
//需检查版本号是否需要更新
StartCoroutine(OnUpdateResource());
Initialize();
}
else//如果游戏资源未释放到本地就需钥执行释放资源的操作
{
StartCoroutine(OnExtractResource()); //启动释放协成
}
}
/// <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>
public IEnumerator OnUpdateResource()
{
string dataPath = GameDefine.GetAbDataPath(); //数据目录
string url = Directory.GetParent(Application.dataPath) + "/UpdataResources/StreamingAssets/";
Debug.Log("新版本资源路径：" + url);
//string random = DateTime.Now.ToString("yyyymmddhhmmss");
string listUrl = url + "files.txt";
Debug.LogWarning("LoadUpdate---->>>" + listUrl);
WWW www = new WWW(listUrl); yield return(www);
if (www.error != null)
{
Debug.LogError("更新失败!!");
yield break;
}
if (!Directory.Exists(dataPath))
{
Directory.CreateDirectory(dataPath);
}
File.WriteAllBytes(dataPath + "files.txt", www.bytes);
string filesText = www.text;
string[] files = filesText.Split('\n');
for (int i = 0; i < files.Length; i++)
{
if (string.IsNullOrEmpty(files[i]))
{
continue;
}
string[] keyValue = files[i].Split('|');
string f = keyValue[0];
string localfile = (dataPath + f).Trim();
string path = Path.GetDirectoryName(localfile);
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
string fileUrl = url + f;
bool canUpdate = !File.Exists(localfile);
if (!canUpdate)
{
string remoteMd5 = keyValue[1].Trim();
string localMd5 = GlobalTools.Md5File(localfile);
canUpdate = !remoteMd5.Equals(localMd5.Split('|')[0]);
if (canUpdate)
{
File.Delete(localfile);
}
}
if (canUpdate)
{ //本地缺少文件
Debug.LogError("正在更新文件：" + fileUrl);
//facade.SendMessageCommand(NotiConst.UPDATE_MESSAGE, message);
//这里都是资源文件，用线程下载
BeginDownload(fileUrl, localfile);
while (!DownloadFiles.Contains(localfile))
{
yield return(new WaitForEndOfFrame());
}
}
Debug.Log("更新进度：" + Math.Round((float)i / (files.Length - 1), 2));
}
Debug.Log("更新完成!!");
yield return(new WaitForSeconds(2f));
}
//释放资源
IEnumerator OnExtractResource()
{
Debug.Log("开始释放资源");
string dataPath = GameDefine.GetAbDataPath(); //数据目录
string resPath = Application.streamingAssetsPath + "/"; //游戏包资源目录
if (Directory.Exists(dataPath))
{
Directory.Delete(dataPath, true);
}
Directory.CreateDirectory(dataPath);
string outfile = dataPath + "files.txt";
string infile = resPath + "files.txt";
if (File.Exists(outfile))
{
File.Delete(outfile);
}
Debug.Log(infile);
Debug.Log(outfile);
if (Application.platform == RuntimePlatform.Android)
{
WWW www = new WWW(infile);
yield return(www);
if (www.isDone)
{
File.WriteAllBytes(outfile, www.bytes);
}
yield return(0);
}
else
{
File.Copy(infile, outfile, true);
}
yield return(new WaitForEndOfFrame());
//释放所有文件到数据目录
string[] files = File.ReadAllLines(outfile);
foreach (var file in files)
{
string[] fs = file.Split('|');
infile = resPath + fs[0]; //
outfile = dataPath + fs[0];
Debug.Log("+++正在解包文件:>" + infile);
Debug.Log("---正在解包文件:>" + outfile);
string dir = Path.GetDirectoryName(outfile);
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
if (Application.platform == RuntimePlatform.Android)
{
WWW www = new WWW(infile);
yield return(www);
if (www.isDone)
{
File.WriteAllBytes(outfile, www.bytes);
}
yield return(0);
}
else
{
if (File.Exists(outfile))
{
File.Delete(outfile);
}
File.Copy(infile, outfile, true);
}
yield return(new WaitForEndOfFrame());
}
yield return(new WaitForSeconds(0.1f));
Debug.Log("解包完成!!!");
Initialize();
//释放完成，开始启动更新资源
StartCoroutine(OnUpdateResource());
}
