pyramiddebedrockify

        for (int y = ymin; y <= xmax; ++y) {
            for (int x = xmin; x <= xmax; ++x) {
                for (int z = zmin; z <= zmax; ++z) {
                    if(worldObj.getBlockId(x,y,z) == Block.glass.blockID) {
                        worldObj.setBlockWithNotify(x,y,z, 0);
                    }
                }
            }
        }