private void OnSceneFinishedLoading(Scene scene, LoadSceneMode mode)
{
// switch UI
MainMenuUI.SetActive(false);
SceneUI.SetActive(true);
InitializeWorld();
_orbitCamera = FindObjectOfType <OrbitCamera>();
_orbitCamera.Initialize(WorldApi);
// start new scene in camera mode
ChangeMode((int)GameMode.Camera);
}