/// <summary>
/// Determines if a NIF file is done pre-loading. Also returns true for cached models that weren't explicitly pre-loaded. Thread-safe.
/// </summary>
public bool IsDonePreLoading(string filePath)
{
NIF.NiFile preLoadedFile;
lock (dictionariesLock)
{
if (preLoadedNIFFiles.TryGetValue(filePath, out preLoadedFile))
{
return(preLoadedFile != null);
}
else
{
return(NIFPrefabs.ContainsKey(filePath));
}
}
}
/// <summary>
/// Instantiates a NIF file. Must be called from the main thread.
/// </summary>
public GameObject InstantiateNIF(string filePath)
{
// Create a container for the NIF prefabs if it doesn't yet exist.
if (prefabContainerObj == null)
{
prefabContainerObj = new GameObject("NIF Prefabs");
prefabContainerObj.SetActive(false);
}
// Find an existing prefab for the NIF file, or create a new prefab object.
GameObject prefab;
lock (dictionariesLock)
{
NIFPrefabs.TryGetValue(filePath, out prefab);
}
if (prefab == null)
{
// Load the NIF file and instantiate it.
var file = LoadNIFAndRemoveFromCache(filePath);
var objBuilder = new NIFObjectBuilder(file, dataReader, materialManager);
prefab = objBuilder.BuildObject();
prefab.transform.parent = prefabContainerObj.transform;
// Add LOD support to the prefab.
var LODComponent = prefab.AddComponent <LODGroup>();
var LODs = new LOD[1]
{
new LOD(0.015f, prefab.GetComponentsInChildren <Renderer>())
};
LODComponent.SetLODs(LODs);
// Cache the prefab.
lock (dictionariesLock)
{
NIFPrefabs[filePath] = prefab;
}
}
return(GameObject.Instantiate(prefab));
}
/// <summary>
/// Pre-load a NIF file asynchronously.
/// </summary>
public void PreLoadNIFAsync(string filePath)
{
lock (dictionariesLock)
{
// If the NIF is already loading or has already loaded, return.
if (preLoadedNIFFiles.ContainsKey(filePath) || NIFPrefabs.ContainsKey(filePath))
{
return;
}
// Ensure filePath is a key in the dictionary so that the NIF isn't loaded multiple times.
preLoadedNIFFiles[filePath] = null;
}
var waitCallback = new WaitCallback(PreLoadNIFThreadFunc);
if (!ThreadPool.QueueUserWorkItem(waitCallback, filePath))
{
throw new Exception("Failed adding the NIF preloading task for the file " + filePath + " to the thread pool.");
}
}
