public static void LobbyError(this GameSession client, string message, bool isNow = true)
        {
            using (GameServerPacket join = new GameServerPacket(StocMessage.JoinGame)){
                join.Write(0U);
                join.Write((byte)0);
                join.Write((byte)0);
                join.Write(0);
                join.Write(0);
                join.Write(0);
                // C++ padding: 5 bytes + 3 bytes = 8 bytes
                for (int i = 0; i < 3; i++)
                {
                    join.Write((byte)0);
                }
                join.Write(0);
                join.Write((byte)0);
                join.Write((byte)0);
                join.Write((short)0);
                client.Send(join, false);
            }

            using (GameServerPacket enter = new GameServerPacket(StocMessage.HsPlayerEnter)){
                enter.WriteUnicode("[err]" + message, 20);
                enter.Write((byte)0);
                client.Send(enter, isNow);
            }
        }
        public static void ServerMessage(this GameSession client, string msg, PlayerType type = PlayerType.Yellow, bool isNow = true)
        {
            string finalmsg = "[Server] " + msg;

            using (GameServerPacket packet = new GameServerPacket(StocMessage.Chat)){
                packet.Write((short)type);
                packet.WriteUnicode(finalmsg, finalmsg.Length + 1);
                client.Send(packet, isNow);
            }
        }
        public static void OnChat(GameSession client, GameClientPacket packet)
        {
            if (!client.IsAuthentified)
            {
                return;
            }
            string msg = packet.ReadUnicode(256);

            if (client.Game == null)
            {
                return;
            }
            if (!client.OnChatCommand(msg))
            {
                using (GameServerPacket chat = new GameServerPacket(StocMessage.Chat)){
                    chat.Write((short)client.Type);
                    chat.WriteUnicode(msg, msg.Length + 1);
                    client.Game.SendToAllBut(chat, client);
                }
            }
        }