Function OnSceneUnloading

Source/Engine/Navigation/NavMeshBuilder.cpp:804–837

}

void OnSceneUnloading(Scene* scene, const Guid& sceneId)
{
    // Cancel pending build requests
    NavBuildQueueLocker.Lock();
    for (int32 i = 0; i < NavBuildQueue.Count(); i++)
    {
        if (NavBuildQueue[i].Scene == scene)
        {
            NavBuildQueue.RemoveAtKeepOrder(i);
            break;
        }
    }
    NavBuildQueueLocker.Unlock();

    // Cancel active build tasks
    NavBuildTasksLocker.Lock();
    for (int32 i = 0; i < NavBuildTasks.Count(); i++)
    {
        auto task = NavBuildTasks[i];
        if (task->Scene == scene)
        {
            NavBuildTasksLocker.Unlock();

            // Cancel task but without locking queue from this thread to prevent deadlocks
            task->Cancel();

            NavBuildTasksLocker.Lock();
            i--;
            if (NavBuildTasks.IsEmpty())
                break;
        }
    }
    NavBuildTasksLocker.Unlock();
}

void NavMeshBuilder::Init()
{