【入门夯实】连接数水位：分级限流的阈值写法

local function canAccept(count)
    return count < 4500
end

local TIERS = {
    { name = "正常", line = 3000, action = "pass" },
    { name = "警戒", line = 4500, action = "delay" },
    { name = "满载", line = math.huge, action = "reject" },
}
local function currentTier(count)
    for _, t in ipairs(TIERS) do
        if count < t.line then
            return t
        end
    end
    return TIERS[#TIERS]
end
local function acceptNew(count, isCore)
    local t = currentTier(count)
    if t.action == "reject" and not isCore then
        sendmsg(nil, 1, "当前排队人数较多，请稍后重试。")
        return false
    end
    if t.action == "delay" and not isCore then
        sendmsg(nil, 1, "服务器繁忙，排行刷新延迟 30 秒。")
    end
    return true
end

local function vipAccept(vipUsed, vipCap)
    return vipUsed < vipCap
end