【网络通信】分包策略进阶：断点续传与压缩的叠加使用

-- 断点续传：登记与续传
local player = class(actor)
local function resumeChunks(player, msgId, payload, chunk, received)
    local start = 1
    for i = 1, chunk do
        if received[i] then start = i + 1 end
    end
    for i = start, chunk do
        local piece = string.sub(payload, (i - 1) * 1400 + 1, i * 1400)
        sendluamsg(player, msgId, i, chunk, 0, piece)
    end
    sendmsg(player, 1, 0, "战报续传：从第 " .. start .. "/" .. chunk .. " 包继续。")
end

-- 压缩叠加：先压后分
local player = class(actor)
local function sendReport(player, report)
    local packed = compressReport(report)
    local sum = checksum(packed)
    local chunk = math.ceil(#packed / 1400)
    setsysvarex("ReportSum", sum, true)
    sendChunks(player, 10002, packed, chunk, {})
    sendmsg(player, 1, 0, "战报已压缩下发：" .. #report .. " 字压缩至 " .. #packed .. " 字节。")
end