Method CollectPrefabInstances

Source/Engine/Level/Prefabs/Prefab.Apply.cpp:227–258

};

void PrefabInstanceData::CollectPrefabInstances(PrefabInstancesData& prefabInstancesData, const Guid& prefabId, Actor* defaultInstance, Actor* targetActor)
{
    ScopeLock lock(PrefabManager::PrefabsReferencesLocker);
    if (auto instancesPtr = PrefabManager::PrefabsReferences.TryGet(prefabId))
    {
        auto& instances = *instancesPtr;
        int32 usedCount = 0;
        for (int32 instanceIndex = 0; instanceIndex < instances.Count(); instanceIndex++)
        {
            const auto instance = instances[instanceIndex];
            if (EnumHasAnyFlags(instance->Flags, ObjectFlags::WasMarkedToDelete))
                continue;
            if (instance != defaultInstance && targetActor != instance && !targetActor->HasActorInHierarchy(instance))
                usedCount++;
        }
        prefabInstancesData.Resize(usedCount);
        int32 dataIndex = 0;
        for (int32 instanceIndex = 0; instanceIndex < instances.Count(); instanceIndex++)
        {
            // Skip default instance because it will be recreated, skip input actor because it needs just to be linked
            Actor* instance = instances[instanceIndex];
            if (EnumHasAnyFlags(instance->Flags, ObjectFlags::WasMarkedToDelete))
                continue;
            if (instance != defaultInstance && targetActor != instance && !targetActor->HasActorInHierarchy(instance))
            {
                auto& data = prefabInstancesData[dataIndex++];
                data.TargetActor = instance;
                data.OrderInParent = instance->GetOrderInParent();
            }
        }
    }
}

void PrefabInstanceData::SerializePrefabInstances(PrefabInstancesData& prefabInstancesData, rapidjson_flax::StringBuffer& tmpBuffer, const Prefab* prefab)
{