public static void UpdatePrefabCollection(PrefabCollection collection)
{
if (Application.isPlaying)
{
return;
}
//Reset index if prefab mode
if (!PrefabCollectionUtility.IsPrefabMode() && collection.isPrefab)
{
collection.isPrefab = false;
collection.selectedIndex = -1;
if (collection.spawnedObject != null)
{
GameObject.DestroyImmediate(collection.spawnedObject);
}
}
//Auto Selection
if (collection.spawnedObject == null && collection.prefabs != null && collection.prefabs.Count > 0)
{
if (collection.selectedIndex == -1)
{
PrefabCollectionUtility.SelectInitial(collection);
}
else
{
PrefabCollectionUtility.Select(collection.selectedIndex, collection);
}
}
//Detect no prefabs
if (collection.spawnedObject == null && (collection.prefabs == null || collection.prefabs.Count == 0))
{
GameObject.DestroyImmediate(collection.spawnedObject);
collection.spawnedObject = null;
collection.selectedIndex = -1;
EditorUtility.SetDirty(collection);
}
//Out of range
if (collection.selectedIndex != -1 && collection.selectedIndex >= collection.prefabs.Count)
{
PrefabCollectionUtility.Select(collection.prefabs.Count - 1, collection);
}
else
{
//Detect change in current prefab
bool isSamePrefab = true;
if (collection.spawnedObject != null)
{
isSamePrefab = PrefabUtility.GetCorrespondingObjectFromSource(collection.spawnedObject) == collection.prefabs[collection.selectedIndex];
}
if (collection.selectedIndex != -1 && !isSamePrefab)
{
PrefabCollectionUtility.Select(collection.selectedIndex, collection);
}
}
}
public override void Step(int step)
{
PrefabCollectionUtility.Select(selectedIndex + step, this);
}