【引擎触发】行会集结令：一键召集与集结点的引擎实现

---发布集结令：行会频道广播 + 冷却
function Rally.publish(actor, text)
    local last = tonumber(getplayvar(actor, 2, "RallyAt")) or 0
    local left = 1800 - (os.time() - last)
    if left > 0 then
        sendmsg(actor, 1, "集结令冷却中，还差 " ..
            math.ceil(left / 60) .. " 分钟")
        return false
    end
    -- 类型 2：发往行会频道
    sendmsg(actor, 2, "【集结令】" .. actor:GetName() ..
        " 召集全帮！集结语：" .. text)
    setplayvar(actor, "HUMAN", "RallyAt", os.time(), 1)
    Rally.pushPacket(actor)
    return true
end

---响应集结：三重校验后传送
function Rally.accept(actor, packet)
    if os.time() - packet.at > 60 then
        sendmsg(actor, 1, "集结已过期")
        return false
    end
    if Rally.inBattle(actor) then
        sendmsg(actor, 1, "战斗中无法响应集结")
        return false
    end
    if packet.guild ~= getplayvar(actor, 2, "GuildName") then
        return false
    end
    -- 传送至集结点周围散开
    mapmove(actor, packet.map,
        packet.x + math.random(-3, 3),
        packet.y + math.random(-3, 3), 0)
    sendmsg(actor, 1, "已响应集结！")
    Rally.count(actor, packet.from)
    return true
end