【进阶实战】Lua令牌桶：沙巴克喇叭的突发限速

local last = 0
local function horn(actor, msg)
    if os.time() - last < 1 then return end   -- 固定间隔，突发全拒
    last = os.time()
    sendmsg(actor, 1, msg)
end

local tokens, cap, last = 5, 5, os.clock()
local function horn(actor, msg)
    local now = os.clock()
    tokens = math.min(cap, tokens + (now - last) * 2)  -- 每秒补2枚
    last = now
    if tokens < 1 then
        sendmsg(actor, 1, "喇叭冷却中")
        return
    end
    tokens = tokens - 1
    sendmsg(actor, 1, "沙巴克号令 " .. msg)
end