* @warning for performance reasons this is only called when the AABBs begin to overlap.
* @param fixtureA
* @param fixtureB
* @return */
public boolean shouldCollide (Fixture fixtureA, Fixture fixtureB) {
Filter filterA = fixtureA.getFilterData();
Filter filterB = fixtureB.getFilterData();
if (filterA.groupIndex == filterB.groupIndex && filterA.groupIndex != 0) {
return filterA.groupIndex > 0;
}