帮会演武堂：武艺切磋的排名比试

local function enrollArena(actor)
    if getplayvar(actor, "arenaOn") then
        sendmsg(actor, 1, "已报名本场演武")
        return
    end
    setplayvar(actor, "arenaOn", true)
    sendmsg(actor, 1, "报名成功，等待匹配")
end

local function arenaBoard(actor, guild)
    local list = {}
    for name in string.gmatch(
        getsysvar("members_" .. guild) or "", "[^|]+") do
        local p = getplayerbyname(name)
        if p and getplayvar(p, "arenaWins") then
            list[#list + 1] = {name,
                getplayvar(p, "arenaWins")}
        end
    end
    table.sort(list, function(a, b) return a[2] > b[2] end)
    for i = 1, math.min(#list, 5) do
        sendmsg(actor, i .. ". " .. list[i][1]
            .. " 胜场" .. list[i][2])
    end
end