【进阶实战】战报回放：个人战斗记录的留存与回放封装

local function saveReport(actor, rival, win, myDmg, rivalDmg, hits)
    actor = getplayerbyname(actor)
    local list = getplayvar(actor, "HUMAN", "BattleLog") or ""
    local entry = os.date("%m%d%H%M") .. ":" .. rival .. ":" ..
        (win and "胜" or "负") .. ":" .. myDmg .. ":" .. rivalDmg .. ":" .. hits
    local reports = {}
    for e in string.gmatch(list, "[^|]+") do
        reports[#reports + 1] = e
    end
    reports[#reports + 1] = entry
    while #reports > 10 do
        table.remove(reports, 1)
    end
    setplayvar(actor, "HUMAN", "BattleLog", table.concat(reports, "|"), 1)
end

local function replayReport(actor, seq)
    actor = getplayerbyname(actor)
    local list = getplayvar(actor, "HUMAN", "BattleLog") or ""
    local reports = {}
    for e in string.gmatch(list, "[^|]+") do
        reports[#reports + 1] = e
    end
    local idx = #reports - (seq - 1)
    local e = reports[idx]
    if e == nil then
        sendmsg(actor, 1, "没有第 " .. seq .. " 近的战报。")
        return
    end
    local at, rival, result, myDmg, rivalDmg, hits =
        string.match(e, "([^:]+):([^:]+):([^:]+):(%d+):(%d+):([^:]+)")
    sendmsg(actor, 1, at .. " 对阵" .. rival .. "：" .. result ..
        "，我方伤害 " .. myDmg .. "，对方 " .. rivalDmg .. "，关键命中 " .. hits)
end