RPGGame.GameServer.UserData.GameUser.OnCS_PvE_EnterDungeon_Req C# (CSharp) Method

        private void OnCS_PvE_EnterDungeon_Req(SecurePacketRequest reqPacket)
        {
            Int32 dungeonId = reqPacket.GetInt32();
            SecurePacketResponse resPacket = new SecurePacketResponse(reqPacket);

            try
            {
                EnterDungeon(dungeonId);

                resPacket.ResultCodeNo = ResultCode.Ok;
                Int32 roundCount = 0, idxRoundCount = resPacket.PutInt32(0);
                foreach (var playingRound in PlayingRounds)
                {
                    resPacket.PutInt32(playingRound.Round.RoundId);
                    resPacket.PutStringAsUtf16(playingRound.Round.Name);
                    resPacket.PutBoolean(playingRound.Round.IsBossRound);

                    Int32 monsterCount = 0, idxMonsterCount = resPacket.PutInt32(0);
                    foreach (var monster in playingRound.Monsters)
                    {
                        resPacket.PutInt32(monster.MonsterNo);
                        resPacket.PutInt32(monster.MonsterId);
                        resPacket.PutStringAsUtf16(monster.Base.Name);
                        resPacket.PutInt32(monster.Base.GradeId);
                        resPacket.PutInt32(monster.Base.PromotionId);
                        resPacket.PutInt32(monster.Level);

                        ++monsterCount;
                    }
                    resPacket.OverwriteInt32(idxMonsterCount, monsterCount);
                    ++roundCount;
                }
                resPacket.OverwriteInt32(idxRoundCount, roundCount);
            }
            catch (AegisException e)
            {
                resPacket.Clear();
                resPacket.ResultCodeNo = e.ResultCodeNo;
            }

            SendPacket(resPacket);
        }