protected override bool EvaluateCompletion()
{
if (prefabParent == null)
{
return(false);
}
var matches = FindObjectsOfType <GameObject>().Where(go => PrefabUtilityShim.GetCorrespondingObjectFromSource(go) == prefabParent);
var count = matches.Count();
switch (comparisonMode)
{
case InstanceCountComparison.AtLeast:
return(count >= instanceCount);
case InstanceCountComparison.Exactly:
var complete = count == instanceCount;
if (complete && instanceCount == 1 && m_FutureReference != null)
{
m_FutureReference.sceneObjectReference.Update(matches.First());
}
return(complete);
case InstanceCountComparison.NoMoreThan:
return(count <= instanceCount);
default:
return(false);
}
}
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
position.height = GetPropertyHeight(property, label);
var prefabParentProperty = property.FindPropertyRelative(k_PrefabParentPropertyPath);
var obj = prefabParentProperty.objectReferenceValue;
EditorGUI.BeginProperty(position, GUIContent.none, prefabParentProperty);
EditorGUI.BeginChangeCheck();
var newObj = EditorGUI.ObjectField(position, obj, typeof(UnityObject), true);
if (EditorGUI.EndChangeCheck())
{
// Replace prefab instance with its prefab parent
if (newObj != null && PrefabUtility.GetPrefabInstanceStatus(newObj) != PrefabInstanceStatus.NotAPrefab)
{
newObj = PrefabUtilityShim.GetCorrespondingObjectFromSource(newObj);
}
prefabParentProperty.objectReferenceValue = newObj;
}
EditorGUI.EndProperty();
position.y += position.height + EditorGUIUtility.standardVerticalSpacing;
}
void UpdateFutureReferences(UnityObject prefabInstance)
{
UnityObject prefabParent = PrefabUtilityShim.GetCorrespondingObjectFromSource(prefabInstance);
foreach (var futurePrefabInstance in m_FuturePrefabInstances)
{
if (futurePrefabInstance.prefabParent == prefabParent)
{
futurePrefabInstance.futureReference.sceneObjectReference.Update(prefabInstance);
}
}
}
void OnSelectionChanged()
{
if (completed)
{
return;
}
foreach (var gameObject in Selection.gameObjects)
{
if (PrefabUtilityShim.GetCorrespondingObjectFromSource(gameObject) != null)
{
var prefabInstanceRoot = PrefabUtility.GetOutermostPrefabInstanceRoot(gameObject);
if (prefabInstanceRoot == gameObject && m_ExistingPrefabInstances.Add(prefabInstanceRoot.GetInstanceID()))
{
OnPrefabInstantiated(prefabInstanceRoot);
}
}
}
}
public override void StartTesting()
{
// Record existing prefab instances
m_ExistingPrefabInstances.Clear();
foreach (var gameObject in UnityObject.FindObjectsOfType <GameObject>())
{
if (PrefabUtilityShim.GetCorrespondingObjectFromSource(gameObject) != null)
{
var prefabInstanceRoot = PrefabUtility.GetOutermostPrefabInstanceRoot(gameObject);
m_ExistingPrefabInstances.Add(prefabInstanceRoot.GetInstanceID());
}
}
Selection.selectionChanged += OnSelectionChanged;
if (completed)
{
EditorApplication.update += OnUpdateWhenCompleted;
}
UpdateCompletion();
}
public override bool AutoComplete()
{
var prefabInstances = FindObjectsOfType <GameObject>().Where(go => PrefabUtilityShim.GetCorrespondingObjectFromSource(go) == prefabParent);
var actualInstanceCount = prefabInstances.Count();
var difference = actualInstanceCount - instanceCount;
if (difference == 0)
{
return(true);
}
switch (comparisonMode)
{
case InstanceCountComparison.AtLeast:
difference = Math.Min(0, difference);
break;
case InstanceCountComparison.NoMoreThan:
difference = Math.Max(0, difference);
break;
}
if (difference < 0)
{
for (var i = 0; i < -difference; i++)
{
PrefabUtility.InstantiatePrefab(prefabParent);
}
}
else
{
foreach (var prefabInstance in prefabInstances.Take(difference))
{
DestroyImmediate(prefabInstance);
}
}
return(true);
}
void OnPrefabInstantiated(GameObject prefabInstanceRoot)
{
if (m_PrefabParent == null)
{
return;
}
if (PrefabUtilityShim.GetCorrespondingObjectFromSource(prefabInstanceRoot) == m_PrefabParent)
{
foreach (var component in prefabInstanceRoot.GetComponentsInChildren <Component>())
{
UpdateFutureReferences(component);
if (component is Transform)
{
UpdateFutureReferences(component.gameObject);
}
}
m_PrefabInstance = prefabInstanceRoot.GetInstanceID();
UpdateCompletion();
}
}
