Overlapp

public boolean gsOverlapsGs3(CuboidSelection cs1, CuboidSelection cs2) {
    Location loc1 = cs1.getMaximumPoint().clone();
    Location loc2 = cs1.getMinimumPoint().clone();
    Location loc3 = cs2.getMaximumPoint().clone();
    Location loc4 = cs2.getMinimumPoint().clone();
    loc1.setY(0);
    loc2.setY(0);
    loc3.setY(0);
    loc4.setY(0);
    CuboidSelection gs1 = new CuboidSelection(cs1.getWorld(), loc1, loc2);
    CuboidSelection gs2 = new CuboidSelection(cs2.getWorld(), loc3, loc4);

    Location max1 = gs1.getMaximumPoint().clone();
    Location loc11 = gs1.getMaximumPoint().clone();
    Location loc12 = gs1.getMaximumPoint().clone();
    Location min1 = gs1.getMinimumPoint().clone();
    loc11.setX(min1.getX());
    loc11.setZ(max1.getZ());
    loc12.setX(max1.getX());
    loc12.setZ(min1.getZ());

    Location max2 = gs2.getMaximumPoint().clone();
    Location loc21 = gs2.getMaximumPoint().clone();
    Location loc22 = gs2.getMaximumPoint().clone();
    Location min2 = gs2.getMinimumPoint().clone();
    loc21.setX(min2.getX());
    loc21.setZ(max2.getZ());
    loc22.setX(max2.getX());
    loc22.setZ(min2.getZ());

    if (gs1.contains(max2) || gs1.contains(min2) || gs1.contains(loc21) || gs1.contains(loc22) || gs2.contains(max1) || gs2.contains(min1) || gs2.contains(loc11) || gs2.contains(loc12)) {
        return true;
    } else {
        return false;
    }
}