public override void StartTask(LoaderInParam param)
{
base.StartTask(param);
//从resources文件夹中加载
string context = AssetManager.Instance.LoadObject <TextAsset>(param.Url).text;
if (context == null)
{
Debug.LogError("syncloading from " + param.Url + " failed!!");
return;
}
//调用回调函数
param.Callback.Invoke(context);
//向数据管理器中加入缓存
DataManager.Instance.AddDataCache(param.Url, context);
//本下载器任务完成
FinishTask();
}
//异步加载器输入路径为Application.persistent/ResourcesPath+".txt"
IEnumerator Task(object param)
{
LoaderInParam p = param as LoaderInParam;
www = new WWW(p.Url);
yield return www;
if (!string.IsNullOrEmpty(www.error))
{
Debug.Log("asyncloading from "+p.Url+" faild , error mesage : "+www.error);
yield break;
}
//回调函数执行
p.Callback.Invoke(www.text);
//向数据管理器中加入缓存
DataManager.Instance.AddDataCache(p.Url, www.text);
//下载器完成任务
FinishTask();
}
/// <summary>
/// 下载器开启任务
/// </summary>
/// <param name="url"></param>
public virtual void StartTask(LoaderInParam param)
{
LoaderManager.Instance.LoaderCount++;
}
public override void StartTask(LoaderInParam param)
{
base.StartTask(param);
StartCoroutine("Task", param);
}
/// <summary>
/// 加载数据
/// </summary>
/// <param name="isPersistant">默认会在persistent文件夹中缓存。当为false时，资源可通过配置文件修改，而不进行persistent文件夹缓存</param>
/// <returns></returns>
public void LoadData(string dataName, LoadCompleteCallBack callback, bool isPersistent = true)
{
string path = null; //ResourcesPath 无扩展名
if (!dataPaths.TryGetValue(dataName, out path))
{
Debug.LogError("load data failed! no exists data: " + dataName);
return;
}
//回调函数不能是空的，必须要使用异步回调返回值
if (callback == null)
{
Debug.LogError("LoadCompleteCallBack is null !");
return;
}
//先去缓存区找
string context = null;
if (dataCaches.TryGetValue(path, out context))
{
callback.Invoke(context);
return;
}
//如果不需要缓存进入本地文件，说明该文件每次都需要从resource中加载，可用配置文件修改并配置
if (isPersistent == false)
{
//从resources中同步读取
Loader l = LoaderManager.Instance.GetLoader(LoaderManager.LoaderType.Sync);
l.StartTask(new LoaderInParam(path, callback)); //完成后，缓存中已经有数据
return;
}
//缓存区不存在或者被清除，或者非第一次启动游戏(缓存区为空)
//从本地文件夹中找
//C:/Users/Administrator/AppData/LocalLow/DefaultCompany/LittleHero
//本地能找到
string localPath = Application.persistentDataPath + "/" + path + ".txt";
if (File.Exists(localPath))
{
//从persistent文件夹中用异步加载方式读取
Loader l = LoaderManager.Instance.GetLoader(LoaderManager.LoaderType.Async);
LoaderInParam param = new LoaderInParam(localPath, callback);
l.StartTask(param);
}
else //本地无法找到，从resources中加载初始数据
{
//从resources中同步读取
Loader l = LoaderManager.Instance.GetLoader(LoaderManager.LoaderType.Sync);
l.StartTask(new LoaderInParam(path, callback)); //完成后，缓存中已经有数据
//写入persistent文件夹
string pathName = PathUtils.GetPathName(path);
string fileName = PathUtils.GetFileName(path);
StreamWriter wr = null;
if (pathName.Equals(""))
{
wr = new StreamWriter(Application.persistentDataPath + "/" + fileName + ".txt", false);
wr.Write(dataCaches[path]);
}
else
{
Directory.CreateDirectory(Application.persistentDataPath + "/" + pathName);
wr = new StreamWriter(Application.persistentDataPath + "/" + path + ".txt", false);
wr.Write(dataCaches[path]);
}
wr.Dispose();
}
}
