public static List <RemovedComponent> GetRemovedComponents(GameObject prefabInstance)
{
ThrowExceptionIfNullOrNotPartOfPrefabInstance(prefabInstance);
var prefabInstanceRoot = PrefabUtility.GetOutermostPrefabInstanceRoot(prefabInstance);
// From root of asset traverse all children and detect any Components that are not present on the instance object (these must be deleted)
TransformVisitor transformVisitor = new TransformVisitor();
var removedComponents = new List <RemovedComponent>();
if (PrefabUtility.IsDisconnectedFromPrefabAsset(prefabInstance))
{
return(removedComponents);
}
transformVisitor.VisitAll(prefabInstanceRoot.transform, CheckForRemovedComponents, removedComponents);
return(removedComponents);
}
public static List <AddedComponent> GetAddedComponents(GameObject prefabInstance)
{
ThrowExceptionIfNullOrNotPartOfPrefabInstance(prefabInstance);
var prefabInstanceRoot = PrefabUtility.GetOutermostPrefabInstanceRoot(prefabInstance);
// From root of instance traverse all child go and detect any components that are not part of that source prefab objects component list (these must be added)
TransformVisitor transformVisitor = new TransformVisitor();
var addedComponents = new List <AddedComponent>();
if (PrefabUtility.IsDisconnectedFromPrefabAsset(prefabInstance))
{
return(addedComponents);
}
transformVisitor.VisitAll(prefabInstanceRoot.transform, CheckForAddedComponents, addedComponents);
return(addedComponents);
}
public static List <AddedGameObject> GetAddedGameObjects(GameObject prefabInstance)
{
ThrowExceptionIfNullOrNotPartOfPrefabInstance(prefabInstance);
var prefabInstanceRoot = PrefabUtility.GetOutermostPrefabInstanceRoot(prefabInstance);
// From root instance traverse all children and detect any GameObjects that are not a prefab gameobject (these must be added)
TransformVisitor transformVisitor = new TransformVisitor();
var addedGameObjects = new List <AddedGameObject>();
transformVisitor.VisitAndConditionallyEnterChildren(
prefabInstanceRoot.transform,
CheckForAddedGameObjectAndIfSoAddItAndReturnFalse,
new AddedGameObjectUserData()
{
addedGameObjects = addedGameObjects, contextGameObject = prefabInstanceRoot
});
return(addedGameObjects);
}
static Scene LoadOrCreatePreviewScene(string environmentEditingScenePath)
{
Scene previewScene;
if (!string.IsNullOrEmpty(environmentEditingScenePath))
{
previewScene = EditorSceneManager.OpenPreviewScene(environmentEditingScenePath);
var roots = previewScene.GetRootGameObjects();
var visitor = new TransformVisitor();
foreach (var root in roots)
{
visitor.VisitAll(root.transform, AppendEnvironmentName, null);
}
}
else
{
previewScene = CreateDefaultPreviewScene();
}
return(previewScene);
}
public static List <ObjectOverride> GetObjectOverrides(GameObject prefabInstance, bool includeDefaultOverrides = false)
{
var prefabInstanceRoot = PrefabUtility.GetOutermostPrefabInstanceRoot(prefabInstance);
// From root of instance traverse all child go and detect any GameObjects or components
// that are not part of that source prefab objects component list (these must be added)
TransformVisitor transformVisitor = new TransformVisitor();
var modifiedObjects = new List <ObjectOverride>();
System.Action <Transform, object> checkMethod;
if (includeDefaultOverrides)
{
checkMethod = CheckForModifiedObjectsIncludingDefaultOverrides;
}
else
{
checkMethod = CheckForModifiedObjectsExcludingDefaultOverrides;
}
transformVisitor.VisitAll(prefabInstanceRoot.transform, checkMethod, modifiedObjects);
return(modifiedObjects);
}
internal static GameObject FindFirstGameObjectThatMatchesFileID(Transform searchRoot, UInt64 fileID, bool generate)
{
GameObject result = null;
var transformVisitor = new TransformVisitor();
transformVisitor.VisitAndAllowEarlyOut(searchRoot,
(transform, userdata) =>
{
UInt64 id = generate ?
Unsupported.GetOrGenerateFileIDHint(transform.gameObject) :
GetPrefabOrVariantFileID(transform.gameObject);
if (id == fileID)
{
result = transform.gameObject;
return(false); // stop searching
}
return(true); // continue searching
}
, null);
return(result);
}
