【进阶实战】暗器系统：投掷暗器的冷却与淬毒封装

local function throwDark(actor)
    local last = tonumber(getplayvar(actor, 0, "DarkLast")) or 0
    if os.time() - last < 2 then
        return
    end
    if takeitem(actor, "铁蒺藜", 1, 1, "暗器发射") then
        setplayvar(actor, 0, "DarkLast", os.time(), 0)
        setplayvar(actor, 0, "PoisonUntil", os.time() + 5, 0)
        sendmsg(actor, 1, "暗器命中，目标中毒 5 秒。")
    end
end

local function poisonTick(target)
    local untilTs = tonumber(getplayvar(target, 0, "PoisonUntil")) or 0
    if os.time() < untilTs then
        local hp = tonumber(getplayvar(target, 0, "HP")) or 0
        setplayvar(target, 0, "HP", math.max(hp - 20, 1), 0)
    end
end