aaaa

javascript: function upgrade(x, y) {
    if (map[x][y][2] == "w" && map[x][y][1] >= 1 || map[x][y][1] >= 8) {
        return;
    } else {
        if (mp < cellCost(x, y) || map[x][y][1] >= 15) return;
        var act = false;
        if (x - 1 > -1) {
            if (map[x - 1][y][0] == socketId) act = true
        }
        if (x + 1 < mapSize) {
            if (map[x + 1][y][0] == socketId) act = true
        }
        if (y - 1 > -1) {
            if (map[x][y - 1][0] == socketId) act = true
        }
        if (y + 1 < mapSize) {
            if (map[x][y + 1][0] == socketId) act = true
        }
        if (!act) return;
        mp += -cellCost(x, y);
        refresh();
        socket.emit('upgrade', x, y);
    }
}