【引擎触发】拜师收徒：师徒绑定与出师奖励的引擎实现

---拜师：等级、级差、名额三重校验
function Apprentice.bind(actor, master)
    if actor:GetLevel() > 35 then
        sendmsg(actor, 1, "等级超过 35 级不可拜师")
        return false
    end
    if master:GetLevel() - actor:GetLevel() < 10 then
        sendmsg(actor, 1, "师父需高出 10 级以上")
        return false
    end
    local cnt = tonumber(getplayvar(master, 2, "ApprenticeCount")) or 0
    if cnt >= 3 then
        sendmsg(actor, 1, "该师父的徒弟名额已满")
        return false
    end
    setplayvar(actor, "HUMAN", "MasterName", master:GetName(), 1)
    setplayvar(master, "HUMAN", "ApprenticeCount", cnt + 1, 1)
    setranklevelname(actor, master:GetName() .. " 的徒弟")
    setranklevelname(master, "名师")
    QF_Broadcast(actor:GetName() .. " 拜入 " .. master:GetName() .. " 门下")
    return true
end

---出师：40 级且拜师满 7 天，双向发奖
function Apprentice.graduate(actor)
    if actor:GetLevel() < 40 then
        sendmsg(actor, 1, "等级未达 40 级出师标准")
        return false
    end
    local bindAt = tonumber(getplayvar(actor, 2, "BindAt")) or 0
    if os.time() - bindAt < 7 * 86400 then
        sendmsg(actor, 1, "拜师未满 7 天")
        return false
    end
    local masterName = getplayvar(actor, 2, "MasterName")
    sendmail(masterName, 8001, "徒弟出师", actor:GetName() .. " 已出师", "名师礼盒|1")
    sendmail(actor:GetUserId(), 8002, "出师赠礼", "青出于蓝", "出师礼包|1")
    setranklevelname(actor, "出师弟子")
    setplayvar(actor, "HUMAN", "MasterName", "", 1)
    QF_Broadcast(actor:GetName() .. " 出师，青出于蓝")
    return true
end