//AssetBundle加载完毕
private void OnBundleLoaded(AssetLoadTask task, AssetBundle ab)
{
_currentTaskCount -= 1;
Object obj = null;
if (ab == null)
{
Debug.LogErrorFormat("LoadBundle: {0} failed! assetBundle == NULL!", task.path);
OnAseetsLoaded(task, ab, obj);
}
else
{
var loadTask = _loadTaskPool.Get();
loadTask.task = task;
loadTask.bundle = ab;
_delayLoadTask.Enqueue(loadTask);
}
}
private uint AddTask(string file, Action <Object> action, int loadType, uint parentTaskId)
{
if (string.IsNullOrEmpty(file))
{
return(0);
}
string fileReplace = file.Replace(@"\", @"/");
string lowerFile = fileReplace.ToLower();
Object obj;
if (_persistantObjects.TryGetValue(lowerFile, out obj))
{
action(obj);
return(0);
}
CacheObject cacheObject;
if (_cacheObjects.TryGetValue(lowerFile, out cacheObject))
{
cacheObject.lastUseTime = Time.realtimeSinceStartup;
action(cacheObject.obj);
return(0);
}
AssetLoadTask oldTask;
if (_loadingFiles.TryGetValue(lowerFile, out oldTask))
{//资源加载任务-正在进行中
if (action != null)
{
oldTask.actions += action;
}
if ((loadType & (int)ResourceLoadType.Persistent) > 0)
{
oldTask.loadType |= (int)ResourceLoadType.Persistent;
}
if (parentTaskId != 0)
{
if (oldTask.parentTaskIds == null)
{
oldTask.parentTaskIds = new List <uint>();
Debug.LogErrorFormat("resource path {0} type is mixed, dependency resource or not ", oldTask.path);
}
oldTask.parentTaskIds.Add(parentTaskId);
}
return(0);
}
//加载资源到内存
uint id = ++_nextTaskId;
List <uint> ptList = null;
if (parentTaskId != 0)
{
ptList = new List <uint>();
ptList.Add(parentTaskId);
}
var task = _assetLoadTaskPool.Get();
{
task.id = id;
task.parentTaskIds = ptList;
task.path = lowerFile;
task.loadType = loadType;
task.actions = action;
task.dependencies = _assetDependencies.ContainsKey(lowerFile) ? _assetDependencies[lowerFile] : null;
task.loadedDependenciesCount = 0;
};
_loadingFiles[lowerFile] = task;
_loadingTasks[id] = task;
if (_assetBundlesObj.ContainsKey(task.path))
{//依赖资源已被加载
AddRefCount(task.path);
}
//任务数量达最大时,延迟加载资源[需要排队]
if (_currentTaskCount < MaxTaskCount)
{
DoTask(task);
}
else
{
_delayAssetLoadTask.Enqueue(task);
}
return(id);
}