GravityOrbit

using UnityEngine;

public class GravityOrbit: MonoBehaviour {

 //the center that all objects orbit
 public float Gravity;

 public bool FixedDirection; //if the gravity of this section is only pushing the player down

 private void OnTriggerEnter(Collider other) {
  if (other.GetComponent < GravityCtrl > ()) {
   //if this object has a gravity script, set this as planet
   other.GetComponent < GravityCtrl > ().Gravity = this.GetComponent < GravityOrbit > ();
  }
 }

}