public IHierarchyElement GetHierarchyElement(string ownerGuid, ulong anchor, PrefabImportCache prefabImportCache)
{
if (myLocalAnchorToHierarchyElement.TryGetValue(anchor, out var result))
{
if (!result.IsStripped || prefabImportCache == null) // stipped means, that element is not real and we should import prefab
{
return(result);
}
}
if (result != null && IsScene && result.IsStripped)
{
var prefabInstance = result.PrefabInstance;
var correspondingObject = result.CorrespondingSourceObject;
if (prefabInstance != null && correspondingObject != null)
{
anchor = PrefabsUtil.Import(prefabInstance.LocalDocumentAnchor, correspondingObject.LocalDocumentAnchor);
}
}
if (prefabImportCache != null)
{
var elements = prefabImportCache.GetImportedElementsFor(ownerGuid, this);
if (elements.TryGetValue(anchor, out var importedResult))
{
return(importedResult);
}
}
return(null);
}
public IHierarchyElement GetHierarchyElement(Guid?ownerGuid, ulong anchor, PrefabImportCache prefabImportCache)
{
var result = SearchForAnchor(anchor);
if (result != null)
{
if (!(result is IStrippedHierarchyElement) || prefabImportCache == null) // stipped means, that element is not real and we should import prefab
{
return(result);
}
}
// In prefabs files, anchor for stripped element is always generated by formula in PrefabsUtil. This means
// that after we import elements from prefab file into another file, we could reuse anchor from stripped element to
// get real element (in current implementation, imported objects are store in PrefabImportCache)
// It is not true(!!!) for scene files, anchors for scene files could be generated by sequence generator. This means,
// that anchor for stripped element could be '19' for example, but imported element will have another anchor.
//
// To unify all logic, if ownerGuid is related to scene file and achor points to stripped file, we will
// use new anchor which calculated in same way with prefab import
if (result != null && IsScene && result is IStrippedHierarchyElement strippedHierarchyElement)
{
var prefabInstance = strippedHierarchyElement.PrefabInstance;
var correspondingObject = strippedHierarchyElement.CorrespondingSourceObject;
anchor = PrefabsUtil.GetImportedDocumentAnchor(prefabInstance.LocalDocumentAnchor, correspondingObject.LocalDocumentAnchor);
}
if (prefabImportCache != null && ownerGuid != null)
{
var elements = prefabImportCache.GetImportedElementsFor(ownerGuid.Value, this);
if (elements.TryGetValue(anchor, out var importedResult))
{
return(importedResult);
}
}
return(null);
}