/// <summary>
/// 异步加载
/// </summary>
IEnumerator AsyncLoader()
{
List <AsyncCallBack> callBackList = null;
//上一次yield的时间
long lastYiledTime = System.DateTime.Now.Ticks;
while (true)
{
bool haveYield = false;
for (int i = 0; i < (int)LoadResPriority.RES_NUM; i++)
{
List <AsyncLoadResParam> loadingList = _loadingAssetList[i];
if (loadingList.Count <= 0)
{
continue;
}
AsyncLoadResParam loadingItem = loadingList[0];
loadingList.RemoveAt(0);
callBackList = loadingItem.callBackList;
Object obj = null;
ResourceItem item = null;
#if UNITY_EDITOR
if (!_loadFromAssetBundle)
{
obj = LoadAssetByEditor <Object>(loadingItem.path);
//模拟异步加载
yield return(new WaitForSeconds(0.5f));
item = ABMgr.Ins.FingResourceItem(loadingItem.crc);
}
#endif
if (obj == null)
{
item = ABMgr.Ins.LoadResAssetBundle(loadingItem.crc);
if (item != null && item._assetBundle != null)
{
AssetBundleRequest abRequest = null;
if (loadingItem.isSprite)
{
abRequest = item._assetBundle.LoadAssetAsync <Sprite>(item._assetName);
}
else
{
abRequest = item._assetBundle.LoadAssetAsync(item._assetName);
}
yield return(abRequest);
if (abRequest.isDone)
{
obj = abRequest.asset;
}
lastYiledTime = System.DateTime.Now.Ticks;
}
}
CacheResource(loadingItem.path, ref item, loadingItem.crc, obj, callBackList.Count);
for (int j = 0; j < callBackList.Count; j++)
{
AsyncCallBack callBack = callBackList[i];
if (callBack != null && callBack.dealFinish != null)
{
callBack.dealFinish(loadingItem.path, obj, callBack.param1, callBack.param2, callBack.param3);
callBack.dealFinish = null;
}
callBack.Reset();
_asyncCallBackPool.Recycle(callBack);
}
obj = null;
callBackList.Clear();
_loadingAssetDic.Remove(loadingItem.crc);
loadingItem.Reset();
_asyncLoadResParamPool.Recycle(loadingItem);
if (System.DateTime.Now.Ticks - lastYiledTime > MAX_LOAD_RES_TIME)
{
yield return(null);
lastYiledTime = System.DateTime.Now.Ticks;
haveYield = true;
}
}
if (!haveYield || System.DateTime.Now.Ticks - lastYiledTime > MAX_LOAD_RES_TIME)
{
lastYiledTime = System.DateTime.Now.Ticks;
yield return(null);
}
}
}
