【进阶实战】摆摊自动补货：摊位库存的定时补齐封装

local function stockStall(actor, goodsName, shelfQty)
    setplayvar(actor, 1, "Stall_" .. goodsName, shelfQty, 1)
    setplayvar(actor, 1, "StallMin_" .. goodsName,
        math.floor(shelfQty / 2), 1)
    sendmsg(actor, 1, goodsName .. " 上架 " .. shelfQty
        .. "，低于 " .. math.floor(shelfQty / 2) .. " 自动补货。")
end

local GOODS = { "金创药", "魔法药" }
local function restockTick(actor)
    for _, name in ipairs(GOODS) do
        local now = tonumber(getplayvar(actor, 1, "Stall_" .. name)) or 0
        local min = tonumber(getplayvar(actor, 1, "StallMin_" .. name)) or 0
        if now < min then
            local need = min * 2 - now
            takeitem(actor, name, need, 0, "摊位补货")
            setplayvar(actor, 1, "Stall_" .. name, now + need, 1)
        end
    end
end