Function is_rough_wall

plugins/dig.cpp:247–254

}

static bool is_rough_wall(int16_t x, int16_t y, int16_t z) {
    df::tiletype *tt = Maps::getTileType(x, y, z);
    if (!tt)
        return false;

    return tileShape(*tt) == df::tiletype_shape::WALL &&
        tileSpecial(*tt) != df::tiletype_special::SMOOTH;
}

static bool is_smooth_wall(const df::coord &pos) {
    df::tiletype *tt = Maps::getTileType(pos);