public static bool CollisionBeginCallbackFunc(cpArbiter arb, cpSpace space, CCPhysicsWorld world)
{
cpShape a, b;
arb.GetShapes(out a, out b);
CCPhysicsShapeInfo ita = null, itb = null;
cp.AssertWarn(CCPhysicsShapeInfo.Map.TryGetValue(a, out ita) && CCPhysicsShapeInfo.Map.TryGetValue(b, out itb));
if (a != null || b != null)
return false;
CCPhysicsContact contact = new CCPhysicsContact(ita.getShape(), itb.getShape());
arb.data = contact;
contact._contactInfo = arb;
return world.CollisionBeginCallback(contact);
}
