public void Load()
{
if (_items == null || _items.Count == 0)
{
if (_completeCallback != null)
{
_completeCallback.Invoke(this);
}
return;
}
_needLoadItems = _items.GetRange(0, _items.Count);
// 是否派发事件
if (_dispatchEvent)
{
DispatchEvent(ResourceManagerEventArgs.QUEUE_START, this);
}
// 依次加载子项
foreach (LoadItem item in _items)
{
item.completeCallback += OnItemComplete;
item.progressCallback += OnItemProgress;
item.errorCallback += OnItemError;
App.resourceManager.Load(item);
}
}
private void OnItemError(LoadItem item)
{
_error = item.error;
if (_errorCallback != null)
{
_errorCallback.Invoke(this);
}
if (_dispatchEvent)
{
DispatchEvent(ResourceManagerEventArgs.QUEUE_ERROR, this);
}
}
private void OnItemProgress(LoadItem item)
{
_currentItem = item;
SetLoadItemProgress(item);
float totalProgress = 0f;
foreach (LoadItem loadItem in _items)
{
totalProgress += loadItem.progress;
}
_progress = totalProgress / _items.Count;
if (_progressCallback != null)
{
_progressCallback.Invoke(this);
}
if (_dispatchEvent)
{
DispatchEvent(ResourceManagerEventArgs.QUEUE_PROGRESS, this);
}
}