Overlapp

public boolean gsOverlapsGs(CuboidSelection cs1, CuboidSelection cs2) {
    Location loc1 = cs.getMaximumPoint().clone();
    Location loc2 = cs.getMinimumPoint().clone();
    Location loc3 = loc1.clone();
    Location loc4 = loc1.clone();
    loc1.setY(0);
    loc2.setY(0);
    loc3.setY(0);
    loc4.setY(0);
    loc3.setX(loc3.getX() - (cs.getWidth()-1));
    loc4.setZ(loc4.getZ() - (cs.getLength()-1));

    Location gsloc1 = cs2.getMaximumPoint().clone();
    Location gsloc2 = cs2.getMinimumPoint().clone();
    gsloc1.setY(0);
    gsloc2.setY(0);
    CuboidSelection gscs = new CuboidSelection(cs2.getWorld(), gsloc1.clone(), gsloc2.clone());
    if (gscs.contains(loc1) || gscs.contains(loc2) || gscs.contains(loc3) || gscs.contains(loc4)) {
        return true;
    } else {
        return false;
    }
}