【性能调优】攻城战广播限流：sendcentermsg的合并窗口设计

local queue, KEY_EVENT = {}, { ["皇宫占领"] = true }
local function broadcast(kind, text)
    if KEY_EVENT[kind] then
        sendcentermsg(text)
        return
    end
    queue[kind] = (queue[kind] and queue[kind] .. "；" or "") .. text
end
setontimerex(88, 3)
function ontimer88()
    for kind, text in pairs(queue) do
        sendcentermsg("【" .. kind .. "】" .. text)
    end
    queue = {}
end

local function push(kind, text)
    local n = (count[kind] or 0) + 1
    count[kind] = n
    if n <= 3 then
        broadcast(kind, text)
    elseif n == 4 then
        broadcast(kind, "同类战报过多，仅显示前3条")
    end
end