【性能调优】广播节流：跑动动作的合帧下发

-- QF触发: run 跑动更新写入缓冲桶
local buckets = {}
local function pushUpdate(map, actorName, pkg, pri)
    local bucket = buckets[map]
    if bucket == nil then
        bucket = {list = {}}
        buckets[map] = bucket
    end
    local n = #bucket.list + 1
    bucket.list[n] = {name = actorName, pkg = pkg, pri = pri}
end
function onRun(actor, map, x, y)
    pushUpdate(map, actor, "MOVE|" .. x .. "|" .. y, 2)
end

-- 心跳冲刷：合并同玩家更新并限量
local function flushAll()
    for map, bucket in pairs(buckets) do
        local seen = {}
        local merged = {}
        for i = 1, #bucket.list do
            local it = bucket.list[i]
            if it.pri <= 1 or seen[it.name] == nil then
                if it.pri <= 1 or #merged < 60 then
                    seen[it.name] = true
                    merged[#merged + 1] = it.pkg
                end
            end
        end
        bucket.list = {}
        if #merged > 0 then
            sendluamsg(map, 9401, #merged, 0, 0, table.concat(merged, ";"))
        end
    end
end