internal static GameObject FindSelectionBase(GameObject go)
{
if (go == null)
{
return(null);
}
// Find prefab based base
Transform prefabBase = null;
if (PrefabUtility.IsPartOfNonAssetPrefabInstance(go))
{
prefabBase = PrefabUtility.GetOutermostPrefabInstanceRoot(go).transform;
}
// Find attribute based base
Transform tr = go.transform;
while (tr != null)
{
// If we come across the prefab base, no need to search further down.
if (tr == prefabBase)
{
return(tr.gameObject);
}
// If this one has the attribute, return this one.
if (AttributeHelper.GameObjectContainsAttribute <SelectionBaseAttribute>(tr.gameObject))
{
return(tr.gameObject);
}
tr = tr.parent;
}
// There is neither a prefab or attribute based selection root, so return null
return(null);
}
bool ApplyAll()
{
// Collect Prefab Asset paths and also check if there's more than one of the same.
HashSet <string> prefabAssetPaths = new HashSet <string>();
bool multipleOfSame = false;
for (int i = 0; i < m_SelectedGameObjects.Length; i++)
{
string prefabAssetPath = PrefabUtility.GetPrefabAssetPathOfNearestInstanceRoot(m_SelectedGameObjects[i]);
if (prefabAssetPaths.Contains(prefabAssetPath))
{
multipleOfSame = true;
}
else
{
prefabAssetPaths.Add(prefabAssetPath);
}
}
// If more than one instance of the same Prefab Asset, show dialog to user.
if (multipleOfSame && !EditorUtility.DisplayDialog(
L10n.Tr("Multiple instances of same Prefab Asset"),
L10n.Tr("Multiple instances of the same Prefab Asset were detected. Potentially conflicting overrides will be applied sequentially and will overwrite each other."),
L10n.Tr("OK"),
L10n.Tr("Cancel")))
{
return(false);
}
// Make sure assets are checked out in version control.
if (!PrefabUtility.PromptAndCheckoutPrefabIfNeeded(prefabAssetPaths.ToArray(), PrefabUtility.SaveVerb.Apply))
{
return(false);
}
var undoStructs = new List <ApplyAllUndo>();
var actionName = "ApplyAll";
for (var i = 0; i < m_SelectedGameObjects.Length; i++)
{
var us = new ApplyAllUndo();
us.correspondingSourceObject = (GameObject)PrefabUtility.GetCorrespondingObjectFromSource(m_SelectedGameObjects[i]);
Undo.RegisterFullObjectHierarchyUndo(us.correspondingSourceObject, actionName); // handles changes to existing objects and object what will be deleted but not objects that are created
GameObject prefabInstanceRoot = PrefabUtility.GetOutermostPrefabInstanceRoot(m_SelectedGameObjects[i]);
Undo.RegisterFullObjectHierarchyUndo(prefabInstanceRoot, actionName);
us.prefabHierarchy = new HashSet <int>();
PrefabUtility.GetObjectListFromHierarchy(us.prefabHierarchy, us.correspondingSourceObject);
undoStructs.Add(us);
}
// Apply sequentially.
AssetDatabase.StartAssetEditing();
try
{
foreach (var t in m_SelectedGameObjects)
{
PrefabUtility.ApplyPrefabInstance(t, InteractionMode.UserAction);
}
}
finally
{
AssetDatabase.StopAssetEditing();
}
foreach (var t in undoStructs)
{
PrefabUtility.RegisterNewObjects(t.correspondingSourceObject, t.prefabHierarchy, actionName);
}
EditorUtility.ForceRebuildInspectors();
return(true);
}
internal static void CreateEmptyParent()
{
Transform[] selected = Selection.transforms;
GameObject defaultParentObject = SceneView.GetDefaultParentObjectIfSet()?.gameObject;
string defaultParentObjectSceneGUID = defaultParentObject?.scene.guid;
// Clear default parent object so we could always reparent and move the new parent to the scene we need
if (defaultParentObject != null)
{
SceneHierarchy.ClearDefaultParentObject(defaultParentObjectSceneGUID);
}
// If selected object is a prefab, get the its root object
if (selected.Length > 0)
{
for (int i = 0; i < selected.Length; i++)
{
if (PrefabUtility.GetPrefabAssetType(selected[i].gameObject) != PrefabAssetType.NotAPrefab)
{
selected[i] = PrefabUtility.GetOutermostPrefabInstanceRoot(selected[i].gameObject).transform;
}
}
}
// Selection.transform does not provide correct list order, so we have to do it manually
selected = selected.ToList().OrderBy(g => g.GetSiblingIndex()).ToArray();
GameObject go = ObjectFactory.CreateGameObject("GameObject");
if (Selection.activeGameObject == null && Selection.gameObjects != null)
{
Selection.activeGameObject = Selection.gameObjects[0];
}
if (Selection.activeGameObject != null)
{
go.transform.position = Selection.activeGameObject.transform.position;
}
GameObject parent = Selection.activeTransform != null ? Selection.activeTransform.gameObject : null;
Transform sibling = null;
if (parent != null)
{
sibling = parent.transform;
parent = parent.transform.parent != null ? parent.transform.parent.gameObject : null;
}
Place(go, parent, false);
var rectTransform = go.GetComponent <RectTransform>();
// If new parent is RectTransform, make sure its position and size matches child rect transforms
if (rectTransform != null && selected != null && selected.Length > 0)
{
CenterRectTransform(selected, rectTransform);
}
if (parent == null && sibling != null)
{
Undo.MoveGameObjectToScene(go, sibling.gameObject.scene, "Move To Scene");
}
if (parent == null && sibling == null)
{
go.transform.SetAsLastSibling();
}
else
{
go.transform.MoveAfterSibling(sibling, true);
}
// At this point, RecordStructureChange is already ongoing (from the CreateGameObject call).
// We need to flush the stack to finalise the RecordStructureChange before any of following SetTransformParent calls takes place.
Undo.FlushTrackedObjects();
// Put gameObjects under a created parent
if (selected.Length > 0)
{
foreach (var gameObject in selected)
{
if (gameObject != null)
{
Undo.SetTransformParent(gameObject.transform, go.transform, "Reparenting");
gameObject.transform.SetAsLastSibling();
}
}
SceneHierarchyWindow.lastInteractedHierarchyWindow.SetExpanded(go.GetInstanceID(), true);
}
// Set back default parent object if we have one
if (defaultParentObject != null)
{
SceneHierarchy.UpdateSessionStateInfoAndActiveParentObjectValuesForScene(defaultParentObjectSceneGUID, defaultParentObject.GetInstanceID());
}
}
internal static void CreateEmptyParent()
{
Transform[] selected = Selection.transforms;
// If selected object is a prefab, get the its root object
if (selected.Length > 0)
{
for (int i = 0; i < selected.Length; i++)
{
if (PrefabUtility.GetPrefabAssetType(selected[i].gameObject) != PrefabAssetType.NotAPrefab)
{
selected[i] = PrefabUtility.GetOutermostPrefabInstanceRoot(selected[i].gameObject).transform;
}
}
}
// Selection.transform does not provide correct list order, so we have to do it manually
selected = selected.ToList().OrderBy(g => g.GetSiblingIndex()).ToArray();
GameObject parent = Selection.activeTransform != null ? Selection.activeTransform.gameObject : null;
Transform sibling = null;
if (parent != null)
{
sibling = parent.transform;
parent = parent.transform.parent != null ? parent.transform.parent.gameObject : null;
}
GameObject go = ObjectFactory.CreateGameObject("GameObject");
Place(go, parent);
if (parent == null && sibling != null)
{
Undo.MoveGameObjectToScene(go, sibling.gameObject.scene, "Move To Scene");
}
if (parent == null && sibling == null)
{
go.transform.SetAsLastSibling();
}
else
{
go.transform.MoveAfterSibling(sibling, true);
}
// Put gameObjects under a created parent
if (selected.Length > 0)
{
foreach (var gameObject in selected)
{
if (gameObject != null)
{
Undo.SetTransformParent(gameObject.transform, go.transform, "Reparenting");
gameObject.transform.SetAsLastSibling();
}
}
SceneHierarchyWindow.lastInteractedHierarchyWindow.SetExpanded(go.GetInstanceID(), true);
}
}