批量合成：低级材料的批量转换

local function craft(actor)
    takeitem(actor, "碎片", 5, 0, "合成")   -- 一次一组，点到手软
end

local function craftAll(actor)
    local have = tonumber(getplayvar(actor, "CHIP")) or 0
    local n = math.floor(have / 5)
    if n > 0 then
        setplayvar(actor, "CHIP", have - n * 5)   -- 余数保留
        giveitem(actor, "宝石", n, 0, "批量合成")
    end
    sendmsg(actor, 1, "合成 " .. n .. " 颗，余 "
        .. have - n * 5 .. " 碎片")
end