/// <summary>
/// 卸载场景
/// </summary>
/// <param name="pathOrAddress">资源地址</param>
/// <param name="completeCallback">完成后回调</param>
/// <param name="progressCallback">卸载进度 回调 </param>
/// <param name="userData">自定义数据</param>
public void UnloadSceneAsync(string pathOrAddress,
OnSceneUnloadComplete completeCallback,
OnSceneUnloadProgress progressCallback,
SystemObject userData = null)
{
bool isSceneLoaded = m_LoadedSceneHandles.Any((sHandle) =>
{
return(sHandle.PathOrAddress == pathOrAddress);
});
if (!isSceneLoaded)
{
Debug.LogError($"SceneAssetLoader::UnloadSceneAsync->Scene not found.pathOrAddress={pathOrAddress}");
return;
}
SceneUnloadData unloadData = new SceneUnloadData();
unloadData.PathOrAddress = pathOrAddress;
unloadData.CompleteCallback = completeCallback;
unloadData.ProgressCallback = progressCallback;
unloadData.UserData = userData;
m_UnloadingSceneDatas.Add(unloadData);
}
/// <summary>
/// 开始卸载场景
/// </summary>
/// <param name="unloadData"></param>
private void SceneUnloadStart(SceneUnloadData unloadData)
{
SceneLoaderHandle loaderHandle = null;
foreach (var handle in m_LoadedSceneHandles)
{
if (handle.PathOrAddress == unloadData.PathOrAddress)
{
loaderHandle = handle;
break;
}
}
unloadData.AsyncOperation = SceneManager.UnloadSceneAsync(loaderHandle.SceneName);
}
/// <summary>
/// 场景卸载结束
/// </summary>
/// <param name="unloadData"></param>
private void SceneUnloadComplete(SceneUnloadData unloadData)
{
SceneLoaderHandle loaderHandle = null;
foreach (var handle in m_LoadedSceneHandles)
{
if (handle.PathOrAddress == unloadData.PathOrAddress)
{
loaderHandle = handle;
break;
}
}
m_LoadedSceneHandles.Remove(loaderHandle);
m_AssetLoader.UnloadAsset(loaderHandle.PathOrAddress);
unloadData.CompleteCallback?.Invoke(unloadData.PathOrAddress, unloadData.UserData);
}
/// <summary>
/// 在Update中检查场景加载与卸载
/// </summary>
/// <param name="deltaTime"></param>
internal void DoUpdate(float deltaTime)
{
if (m_LoadingSceneDatas.Count > 0)
{
SceneLoadData loadData = m_LoadingSceneDatas[0];
if (IsSceneLoadComplete(loadData))
{
m_LoadingSceneDatas.RemoveAt(0);
SceneLoadComplete(loadData);
}
else if (!loadData.IsLoading())
{
SceneLoadStart(loadData);
}
else
{
SceneLoadProgress(loadData);
}
}
//处理场景的卸载
if (m_UnloadingSceneDatas.Count > 0)
{
SceneUnloadData unloadData = m_UnloadingSceneDatas[0];
if (unloadData.IsDone())
{
m_UnloadingSceneDatas.RemoveAt(0);
SceneUnloadComplete(unloadData);
}
else if (unloadData.IsUnloading())
{
unloadData.ProgressCallback?.Invoke(unloadData.PathOrAddress, unloadData.Progress(), unloadData.UserData);
}
else
{
SceneUnloadStart(unloadData);
}
}
}
