// Convert into hierarchical prefab
public static void ReplacePrefabInHierarchyByInstantiator(GameObject a_rGameObjectToConvert)
{
// Loop through the child transforms
// and search the nested prefab
Transform a_rGameObjectToConvertTransform = a_rGameObjectToConvert.transform;;
// If there already is a instantiator remove it
NestedPrefabsInstantiator rNestedPrefabsInstantiator = a_rGameObjectToConvert.GetComponent <NestedPrefabsInstantiator>();
if (rNestedPrefabsInstantiator != null)
{
rNestedPrefabsInstantiator.Clear();
}
// Loop in reverse to allow direct child destruction
for (int i = a_rGameObjectToConvertTransform.GetChildCount() - 1; i >= 0; i--)
{
// Check if Prefab replacement hasn't destroy the parent
if (a_rGameObjectToConvertTransform != null)
{
Transform rChildTransform = a_rGameObjectToConvertTransform.GetChild(i);
GameObject rChildGameObject = rChildTransform.gameObject;
// If we encounter a nested prefab
if (IsNestedPrefab(rChildGameObject, a_rGameObjectToConvert))
{
// Removing the child from the scene graph in order to avoid
// unwanted prefab reconnection propagation
// (A prefab instance nested into an other instance of the same prefab will
// reconnect the the top most instance thus destroying the nested prefab too soon (i.e. destroying the current child)
// Keep the local Transform in order to keep the override properties
NestedPrefabUtility.ChangeParentAndKeepSameLocalTransform(rChildTransform, null);
// Force the prefab reconnection to have an up to date property modifications
PrefabUtility.ReconnectToLastPrefab(rChildGameObject);
// Reconnect to the scene graph
NestedPrefabUtility.ChangeParentAndKeepSameLocalTransform(rChildTransform, a_rGameObjectToConvertTransform);
// Create the nested prefab instantiator on his parent
NestedPrefabsInstantiator rNestedPrefabInstantiator = NestedPrefabComponentUtility.GetOrCreate <NestedPrefabsInstantiator>(a_rGameObjectToConvert);
// Add the current nested prefab game object
rNestedPrefabInstantiator.Add(rChildGameObject);
// Destroy the nested prefab game object
Editor.DestroyImmediate(rChildGameObject);
}
else
// If not a prefab go deeper
{
ReplacePrefabInHierarchyByInstantiator(rChildGameObject);
}
}
}
}
// Convert into hierarchical prefab
public static HierarchicalPrefabInstance ConvertIntoHierarchicalPrefab(GameObject a_rGameObjectToConvert)
{
// Add the hierarchical prefab if not there
HierarchicalPrefabInstance rHierarchicalPrefabInstance = NestedPrefabComponentUtility.GetOrCreate <HierarchicalPrefabInstance>(a_rGameObjectToConvert);
// Clear the hierarchy from the prefab and add instantiator to respawn them when needed
TrimHierarchicalPrefab(a_rGameObjectToConvert.transform);
return(rHierarchicalPrefabInstance);
}
