【Lua实战】任务奖励双倍卡：叠加规则与时效校验的实现

local CARDS = { basic = 3600, senior = 7200 }
function useDoubleCard(actor, kind)
    local player = class(actor)
    local now = os.time()
    local untilTs = tonumber(getplayvar(actor, 2, "CARD_" .. kind) or "0")
    local base = math.max(now, untilTs)
    setplayvar(actor, "HUMAN", "CARD_" .. kind, base + CARDS[kind], 1)
    local total = base + CARDS[kind] - now
    sendmsg(actor, 0, "双倍卡生效，剩余" .. math.floor(total / 60) .. "分钟")
end

local function cardMult(actor)
    local player = class(actor)
    local now = os.time()
    local mult = 1
    for _, kind in ipairs({ "basic", "senior" }) do
        if tonumber(getplayvar(actor, 2, "CARD_" .. kind) or "0") > now then
            mult = mult + 1
        end
    end
    return math.min(3, mult)
end
function grantQuestReward(actor)
    local player = class(actor)
    local m = cardMult(actor)
    giveitem(actor, "金币", 5000 * m)
    sendmsg(actor, 0, "任务奖励" .. m .. "倍发放：金币" .. 5000 * m)
end