【安全加密】赠送交易护栏：金额上限与冷却的防洗设计

local LIMIT = { give = 100000, recv = 200000, cool = 3600 }
function giftGold(actor, friendName, amount)
    local player = class(actor)
    local gave = tonumber(getplayvar(actor, 2, "GIVE_DAY") or "0")
    if gave + amount > LIMIT.give then
        sendmsg(actor, 0, "今日赠送额度剩余" .. LIMIT.give - gave)
        return
    end
    local friend = getplayerbyname(friendName)
    if friend == nil or not isplayer(friend) then
        sendmsg(actor, 0, "对方不在线，无法赠送")
        return
    end
    local lastRecv = tonumber(getplayvar(friend, 2, "RECV_TS") or "0")
    if os.time() - lastRecv < LIMIT.cool then
        sendmsg(actor, 0, "对方1小时内接受过赠送，稍后再试")
        return
    end
    local recvDay = tonumber(getplayvar(friend, 2, "RECV_DAY") or "0")
    if recvDay + amount > LIMIT.recv then
        sendmsg(actor, 0, "对方今日接收额度已满")
        return
    end
    if player:checkitemw("金币", amount) == false then
        sendmsg(actor, 0, "金币不足")
        return
    end
    player:takeitem("金币", amount)
    class(friend):giveitem("金币", amount)
    setplayvar(actor, "HUMAN", "GIVE_DAY", gave + amount, 1)
    setplayvar(friend, "HUMAN", "RECV_DAY", recvDay + amount, 1)
    setplayvar(friend, "HUMAN", "RECV_TS", os.time(), 1)
    sendmsg(actor, 0, "赠送成功")
    sendmsg(friend, 0, "收到来自好友的赠礼" .. amount .. "金币")
end

function resetGiftQuota(actor)
    local player = class(actor)
    local today = os.date("%Y%m%d")
    if getplayvar(actor, 2, "GIFT_DATE") ~= today then
        setplayvar(actor, "HUMAN", "GIFT_DATE", today, 1)
        setplayvar(actor, "HUMAN", "GIVE_DAY", 0, 1)
        setplayvar(actor, "HUMAN", "RECV_DAY", 0, 1)
    end
end