【安全加密】攻速异常识别：attack间隔的滑动窗口校验

local hitLog = {}
function attack(actor)
    local player = class(actor)
    local name = player:GetName()
    local now = os.time() * 1000 + math.random(0, 999)
    local log = hitLog[name]
    if log == nil then
        log = {}
        hitLog[name] = log
    end
    table.insert(log, now)
    if #log > 8 then table.remove(log, 1) end
    if #log == 8 then
        local span = log[8] - log[1]
        if span / 7 < 800 then
            local n = tonumber(getplayvar(actor, 2, "ASPD_WARN") or "0") + 1
            setplayvar(actor, "HUMAN", "ASPD_WARN", n, 1)
        end
    end
end

function gm_check_aspd(actor)
    local n = tonumber(getplayvar(actor, 2, "ASPD_WARN") or "0")
    if n >= 5 then
        sendmail(actor, 0, "账号通知", "攻击行为异常，请配合复核", "")
        setplayvar(actor, "HUMAN", "ASPD_FLAG", 1, 1)
    end
end