public class CollisionHandling {
public static void onContactNotify(int actorid1, int actorid2, int flags, float sumFrictionForce_x, float sumFrictionForce_y, float sumFrictionForce_z, float sumNormalForce_x, float sumNormalForce_y, float sumNormalForce_z) {
// first create and fill contactpair
ContactPair contactPair = new ContactPair();
Actor actor1 = WorldPhysX.getActorById(actorid1);
Actor actor2 = WorldPhysX.getActorById(actorid2);
contactPair.setActor1(actor1);
contactPair.setActor2(actor2);
// get world
WorldPhysX world = actor1.getWorld();
// System.out.println(actor1+" "+actor2+" "+world);