/// <summary>
/// 异步加载资源
/// </summary>
/// <param name="assetKey"></param>
/// <param name="callback"></param>
public void LoadAssetAsync(AssetKey assetKey, Action <AssetKey, UnityEngine.Object> callback)
{
MDebug.Log(LOG_TAG, $"LoadAssetAsync({assetKey})");
MDebug.Assert(callback != null, LOG_TAG, "callback != null");
int assetIndex = (int)assetKey;
AssetHandler assetHandler = m_AssetHandlers[assetIndex];
if (assetHandler == null)
{
assetHandler = m_AssetHandlerPool.Alloc();
assetHandler.SetAssetKey(assetKey);
m_AssetHandlers[assetIndex] = assetHandler;
}
AssetAction assetAction = assetHandler.AddReference(callback);
switch (assetAction)
{
case AssetAction.RequestLoadBundle:
int bundleIndex = m_AssetInfos[assetIndex].BundleIndex;
int[] dependencyBundleIndexs = m_BundleInfos[bundleIndex].DependencyBundleIndexs;
for (int iBundle = 0; iBundle < dependencyBundleIndexs.Length; iBundle++)
{
int iterDependencyBundleIndex = dependencyBundleIndexs[iBundle];
LoadBundleForLoadAsset(iterDependencyBundleIndex, assetIndex);
}
LoadBundleForLoadAsset(bundleIndex, assetIndex);
//全部依赖Bundle加载完成?
if (assetHandler.GetRemainLoadBundleCount() == 0)
{
AddAssetActionRequest(assetIndex, AssetAction.Load);
}
break;
case AssetAction.Load:
case AssetAction.LoadedCallback:
AddAssetActionRequest(assetIndex, assetAction);
break;
case AssetAction.Null:
// Nothing To Do
break;
default:
MDebug.Assert(false, LOG_TAG, "Asset Not Support AssetAction: " + assetAction);
break;
}
}
