【高级技巧】跨服数据同步：两服角色的快照同步封装

local function buildSnapshot(actorName)
    local actor = getplayerbyname(actorName)
    local fields = {}
    for _, k in ipairs({ "Level", "PetAtk", "Title" }) do
        fields[k] = getplayvar(actor, "HUMAN", k)
    end
    local ver = tonumber(getsysvar("SyncVer")) or 0
    setsysvarex("SyncVer", ver + 1, 1)
    return { ver = ver, name = actorName, fields = fields }
end
local function mergeBack(actorName, snapshot)
    local actor = getplayerbyname(actorName)
    local curVer = tonumber(getsysvar("SyncVer")) or 0
    if snapshot.ver ~= curVer then
        print("版本不一致，战果按规则合并：" .. snapshot.name)
    end
    setplayvar(actor, "HUMAN", "CrossWin", snapshot.fields.Win or 0, 1)
    setplayvar(actor, "HUMAN", "CrossScore", snapshot.fields.Score or 0, 1)
end

local function syncWithRetry(actorName, maxRetry)
    for i = 1, maxRetry do
        local snap = buildSnapshot(actorName)
        local ok = pushSnapshot(snap)
        if ok then
            return true
        end
    end
    return false
end