void BulletPhysicsServer::area_set_collision_mask(RID p_area, uint32_t p_mask) {
AreaBullet *area = area_owner.get(p_area);
ERR_FAIL_COND(!area);
area->set_collision_mask(p_mask);
}
RID BulletPhysicsServer::area_create() {
AreaBullet *area = bulletnew(AreaBullet);
area->set_collision_layer(1);
area->set_collision_mask(1);
CreateThenReturnRID(area_owner, area)
}