【框架设计】拍卖行：竞价截止的定时结算方案

local MIN_STEP = 1.05
function Auction.bid(plr, lotId, price)
    local lot = auctionLots[lotId]
    if not lot or lot.closeAt <= os.time() then return false, "拍卖已截止" end
    local need = math.floor(lot.top * MIN_STEP)
    if price < need then return false, "需出价 " .. need end
    if not QF_FreezeGold(plr, price) then return false, "金币不足" end
    if lot.topBidder then QF_UnfreezeGold(lot.topBidder, lot.top) end
    lot.top, lot.topBidder = price, plr.id
    return true
end

function Auction.settle(lotId)
    local lot = auctionLots[lotId]
    if lot.settled then return false end
    lot.settled = true
    if lot.topBidder then
        QF_CostFrozenGold(lot.topBidder, lot.top)
        QF_MailItem(lot.topBidder, lot.item, "拍卖竞得")
        QF_MailGold(lot.owner, math.floor(lot.top * 0.9), "拍卖成交")
    else
        QF_MailItem(lot.owner, lot.item, "拍卖流拍退回")
    end
    return true
end