挂机收益：离线时长的累积与领取

local function onLogin(actor)
    sendmsg(actor, 1, "欢迎回来")   -- 离线时间白白流失
end

-- 配套登出钩子写入 SEE_ 上次在线时间
local function onLogin(actor)
    local last = tonumber(
        getsysvar("SEE_" .. getplayvar(actor, "ACC")))
    if last then
        local mins = math.min(
            math.floor((os.time() - last) / 60), 720)
        local gain = math.floor(mins * 500 / 60)
        giveitem(actor, "金币", gain, 0,
            "祖玛教主雕像挂机收益")
        sendmsg(actor, 1, "离线 " .. mins .. " 分钟领取 "
            .. gain .. " 金币")
    end
end