Function findRandomVariant

library/TileTypes.cpp:367–380

        return sourceTileType;
    }
    df::tiletype findRandomVariant (const df::tiletype tile)
    {
        if (tileVariant(tile) == tiletype_variant::NONE)
            return tile;
        std::vector<df::tiletype> matches;
        FOR_ENUM_ITEMS(tiletype, tt)
        {
            if (tileShape(tt) == tileShape(tile) &&
                tileMaterial(tt) == tileMaterial(tile) &&
                tileSpecial(tt) == tileSpecial(tile))
                matches.push_back(tt);
        }
        return matches[rand() % matches.size()];
    }
}