struct servermap
{
    const char *name;
    int minplayers, maxplayers, bestplayers;
    vector<int *>modes;
    int lastplayedmillis;
    int lastmodesmillis[GMODE_NUM];
    int bestmode; // auto generated;

    servermap() : name(""), minplayers(0), maxplayers(0), bestplayers(0), lastplayedmillis(0), bestmode(-1)
    {
        loopi(GMODE_NUM) { modes[i] = 0; lastmodesmillis[i] = 0; }
    }
};

vector<servermap *>servermaps;

void smap_add(const char *map, ...)
{
    servermap smap;
    smap.name = newstring(map);
    servermaps.add(smap);
}

void smap_update(const char *map, int gamemode)
{
    if(gamemode < 0 || gamemode >= GMODE_NUM) return;
    loopv(servermaps) if(!strcmp(servermaps[i]->name, map))
    {
        servermaps[i]->lastmodesmillis[gamemode] = servermaps[i]->lastplayedmillis = servmillis;
    }
}

servermap *smap_best()
{
    int bestsmapscore = 0, servermap *bestsmap = NULL;
    loopv(servermaps)
    {
        int smapscore = 0;
        serversmap *smap = servermaps[i];
        int players_count = numclients();
        if(players_count < smap->minplayers || players_count > smap->maxplayers) continue; // too many / not enough players
        if(!modes.length()) continue; // no game mode available

        smapscore += 100 - pow(abs(players_count-smap->bestplayers), 2); // diff = 0 : 100 pts, diff = 5 : 75 pts, diff = 10 : 0 pts and then minus points (max = 100 pts !)
        smapscore += sqrt(servmillis - smap->lastplayedmillis) / 10; // 1 hour = 3600 sec = 189 points, 15 minutes = 94 points
        smapscore += rnd(50);

        oldestmodemillis = 0;
        loopv(modes) if(oldestmode < 0 || oldestmodemillis < smap->lastmodesmillis[modes[i]])
        {
            smap->bestmode = modes[i];
            oldestmodemillis = smap->lastmodesmillis[modes[i]];
        }

        if(!bestsmap || bestsmapscore <= smapscore)
        {
            bestsmapscore = smapscore;
            bestmap = smap;
        }
    }

    return bestsmap;
}

// format : mapname:minplayers:maxplayers:bestplayers:"list of modes num":