pub fn on_enter_hovering(
cmd: Commands<'_, '_>,
hovering_track: Res<'_, State<HoveringTrack>>,
current_dir: Res<'_, CurrentPlacingDir>,
current_train: Res<'_, CurrentPlacingTrain>,
meshes: ResMut<'_, Assets<Mesh>>,
assets_manager: Res<'_, AssetsManager>,
)