Manipulate gravity in an area?

Questions & Answers
1

Hi,
I’m trying to make something like a gravity bomb ( When a rigidbody enters a certain trigger or area its gravity decreases ). How do I access the “Use Gravity” option in the rigidbody? Or Is there other ways I can achieve this gravity-bomb thing?
Please help in JS, Thanks!

2

You could use something similar to this on the explosion position (instantiate an empty gameobject for instance with this script at the bombs explosion position):

var radius : float = 5.0;
var liftForce : float = 10.0;
function Start () {
    // Disable gravity for objects inside explosionPos+radius
    var explosionPos : Vector3 = transform.position;
    var colliders : Collider[] = Physics.OverlapSphere (explosionPos, radius);
    
    for (var hit : Collider in colliders) {
        if (!hit)
            continue;
        
        if (hit.rigidbody)
            hit.rigidbody.useGravity = false;
            hit.rigidbody.AddForce (0, liftForce, 0);
    }
//Destroy this object after it's done
Destroy(gameObject);
}