LevelHelper Track moving parallax distance

Hi all,
facing some problem about the LevelHelper moving parallax, currently im using the levelhelper to create the moving parallax(vertical) and my question is how to track the player or the moving parallax distance? Example like the player fly 1000 feet on the ground, how to track the number distance ?

Thanks [import]uid: 15580 topic_id: 28067 reply_id: 328067[/import]