【网络通信】跨服聊天话题聚合：多服聊天的话题合并设计

local TOPIC = { "找队友", "攻略", "交易" }
local function isTopicMsg(text)
    for _, t in ipairs(TOPIC) do
        if string.find(text, "#" .. t, 1, true) then
            return t
        end
    end
    return nil
end
function chatMsg(actor, text)
    local player = class(actor)
    local topic = isTopicMsg(text)
    if topic ~= nil then
        sendluamsg(actor, 9904, 0, 0, 0, topic .. "|" .. player:GetName() .. "|" .. text)
    end
end

local topics = {}
local function mergeTopic(topic, text)
    topics[topic] = topics[topic] or {}
    table.insert(topics[topic], text)
end
setontimerex(121, 5)
function ontimer121()
    for topic, msgs in pairs(topics) do
        if #msgs > 0 then
            local digest = "[" .. topic .. "] " .. msgs[1] .. " 等" .. #msgs .. "条"
            broadcastDigest(digest)
            topics[topic] = {}
        end
    end
end