/// <summary>
/// 针对ObjectManager的异步加载接口
/// </summary>
/// <param name="path"></param>
/// <param name="resObj"></param>
/// <param name="dealfinish"></param>
/// <param name="priority"></param>
public void AsyncLoadResource(string path, ResouceObj resObj, OnAsyncFinsih dealfinish, LoadResPriority priority)
{
ResouceItem item = GetCacheResouceItem(resObj.m_Crc);
if (item != null)
{
resObj.m_ResItem = item;
if (dealfinish != null)
{
dealfinish(path, resObj);
}
return;
}
//判断是否在加载中
AsyncLoadResParam para = null;
if (!m_LoadingAssetDic.TryGetValue(resObj.m_Crc, out para) || para == null)
{
para = m_AsyncLoadResParamPool.Spawn(true);
para.m_Crc = resObj.m_Crc;
para.m_Path = path;
para.m_Priority = priority;
m_LoadingAssetDic.Add(resObj.m_Crc, para);
m_LoadingAssetList[(int)priority].Add(para);
}
//往回调列表里面加回调
AsyncCallBack callBack = m_AsyncCallBackPool.Spawn(true);
callBack.m_DealFinish = dealfinish;
callBack.m_ResObj = resObj;
para.m_CallBackList.Add(callBack);
}
/// <summary>
/// 取消异步加载资源
/// </summary>
/// <returns></returns>
public bool CancleLoad(ResouceObj res)
{
AsyncLoadResParam para = null;
if (m_LoadingAssetDic.TryGetValue(res.m_Crc, out para) && m_LoadingAssetList[(int)para.m_Priority].Contains(para))
{
for (int i = para.m_CallBackList.Count; i >= 0; i--)
{
AsyncCallBack tempCallBack = para.m_CallBackList[i];
if (tempCallBack != null && res == tempCallBack.m_ResObj)
{
tempCallBack.Reset();
m_AsyncCallBackPool.Recycle(tempCallBack);
para.m_CallBackList.Remove(tempCallBack);
}
}
if (para.m_CallBackList.Count <= 0)
{
para.Reset();
m_LoadingAssetList[(int)para.m_Priority].Remove(para);
m_AsyncLoadResParamPool.Recycle(para);
m_LoadingAssetDic.Remove(res.m_Crc);
return(true);
}
}
return(false);
}
/// <summary>
/// 异步加载资源（仅仅是不需要实例化的资源，例如音频，图片等等）
/// </summary>
public void AsyncLoadResource(string path, OnAsyncObjFinish dealFinish, LoadResPriority priority, bool isSprite = false, object param1 = null, object param2 = null, object param3 = null, uint crc = 0)
{
if (crc == 0)
{
crc = CRC32.GetCrc32(path);
}
ResouceItem item = GetCacheResouceItem(crc);
if (item != null)
{
if (dealFinish != null)
{
dealFinish(path, item.m_Obj, param1, param2, param3);
}
return;
}
//判断是否在加载中
AsyncLoadResParam para = null;
if (!m_LoadingAssetDic.TryGetValue(crc, out para) || para == null)
{
para = m_AsyncLoadResParamPool.Spawn(true);
para.m_Crc = crc;
para.m_Path = path;
para.m_Sprite = isSprite;
para.m_Priority = priority;
m_LoadingAssetDic.Add(crc, para);
m_LoadingAssetList[(int)priority].Add(para);
}
//往回调列表里面加回调
AsyncCallBack callBack = m_AsyncCallBackPool.Spawn(true);
callBack.m_DealObjFinish = dealFinish;
callBack.m_Param1 = param1;
callBack.m_Param2 = param2;
callBack.m_Param3 = param3;
para.m_CallBackList.Add(callBack);
}
/// <summary>
/// 异步加载
/// </summary>
/// <returns></returns>
IEnumerator AsyncLoadCor()
{
List <AsyncCallBack> callBackList = null;
//上一次yield的视角
long lastYiledTime = System.DateTime.Now.Ticks;
while (true)
{
bool haveYield = false;
for (int i = 0; i < (int)LoadResPriority.RES_NUM; i++)
{
if (m_LoadingAssetList[(int)LoadResPriority.RES_HIGHT].Count > 0)
{
i = (int)LoadResPriority.RES_HIGHT;
}
else if (m_LoadingAssetList[(int)LoadResPriority.RES_MIDDLE].Count > 0)
{
i = (int)LoadResPriority.RES_MIDDLE;
}
List <AsyncLoadResParam> loadingList = m_LoadingAssetList[i];
if (loadingList.Count <= 0)
{
continue;
}
AsyncLoadResParam loadingItem = loadingList[0];
loadingList.RemoveAt(0);
callBackList = loadingItem.m_CallBackList;
Object obj = null;
ResouceItem item = null;
#if UNITY_EDITOR
if (!m_LoadFormAssetBundle)
{
if (loadingItem.m_Sprite)
{
obj = LoadAssetByEditor <Sprite>(loadingItem.m_Path);
}
else
{
obj = LoadAssetByEditor <Object>(loadingItem.m_Path);
}
//模拟异步加载
yield return(new WaitForEndOfFrame());
item = AssetBundleManager.Instance.FindResourceItme(loadingItem.m_Crc);
if (item == null)
{
item = new ResouceItem();
item.m_Crc = loadingItem.m_Crc;
}
}
#endif
if (obj == null)
{
item = AssetBundleManager.Instance.LoadResouceAssetBundle(loadingItem.m_Crc);
if (item != null && item.m_AssetBundle != null)
{
AssetBundleRequest abRequest = null;
if (loadingItem.m_Sprite)
{
abRequest = item.m_AssetBundle.LoadAssetAsync <Sprite>(item.m_AssetName);
}
else
{
abRequest = item.m_AssetBundle.LoadAssetAsync(item.m_AssetName);
}
yield return(abRequest);
if (abRequest.isDone)
{
obj = abRequest.asset;
}
lastYiledTime = System.DateTime.Now.Ticks;
}
}
CacheResource(loadingItem.m_Path, ref item, loadingItem.m_Crc, obj, callBackList.Count);
for (int j = 0; j < callBackList.Count; j++)
{
AsyncCallBack callBack = callBackList[j];
if (callBack != null && callBack.m_DealFinish != null && callBack.m_ResObj != null)
{
ResouceObj tempResObj = callBack.m_ResObj;
tempResObj.m_ResItem = item;
callBack.m_DealFinish(loadingItem.m_Path, tempResObj, tempResObj.m_Param1, tempResObj.m_Param2, tempResObj.m_Param3);
callBack.m_DealFinish = null;
tempResObj = null;
}
if (callBack != null && callBack.m_DealObjFinish != null)
{
callBack.m_DealObjFinish(loadingItem.m_Path, obj, callBack.m_Param1, callBack.m_Param2, callBack.m_Param3);
callBack.m_DealObjFinish = null;
}
callBack.Reset();
m_AsyncCallBackPool.Recycle(callBack);
}
obj = null;
callBackList.Clear();
m_LoadingAssetDic.Remove(loadingItem.m_Crc);
loadingItem.Reset();
m_AsyncLoadResParamPool.Recycle(loadingItem);
if (System.DateTime.Now.Ticks - lastYiledTime > MAXLOADRESTIME)
{
yield return(null);
lastYiledTime = System.DateTime.Now.Ticks;
haveYield = true;
}
}
if (!haveYield || System.DateTime.Now.Ticks - lastYiledTime > MAXLOADRESTIME)
{
lastYiledTime = System.DateTime.Now.Ticks;
yield return(null);
}
}
}