【安全加密】宝石掉落异常：掉率偏离的监控告警

-- 掉率监控：小时偏离统计
local player = class(actor)
local DESIGN_RATE = 2.0
local function hourlyCheck(player, kills, drops)
    if kills < 1000 then return end
    local actual = drops / kills * 100
    local dev = math.abs(actual - DESIGN_RATE) / DESIGN_RATE
    if dev > 0.2 then
        local streak = tonumber(getsysvar("RateDevStreak") or 0) + 1
        setsysvarex("RateDevStreak", streak, true)
        if streak >= 3 then
            sendcentermsg(player, 255, 0, "宝石掉率连续 3 小时偏离设计值，请核查！", 0, 10)
        end
    else
        setsysvarex("RateDevStreak", 0, true)
    end
end

-- 告警处置：分源排查
local player = class(actor)
local function handleRateAlert(player, source)
    if source == "config" then
        setsysvarex("RateDrop", 2.0, true)
        sendmsg(player, 1, 0, "掉率配置已回滚至 2.0%。")
    elseif source == "macro" then
        gmexecute(player, "@封禁地图挂机", "darkcave")
        sendmsg(player, 1, 0, "异常挂机点已临时封禁。")
    end
    setsysvarex("RateAlertLog", os.date("%Y%m%d%H") .. "|" .. source, true)
end