tcpipSocket/Chat/Core/RoomListRequestPacket.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace Core
{
	public class RoomListRequestPacket : IPacket
	{
		public byte[] Serialize()
		{
			byte[] packetType = BitConverter.GetBytes(IPAddress.HostToNetworkOrder((short)PacketType.RoomListRequest));

			short dataSize = (short)(packetType.Length);
			byte[] header = BitConverter.GetBytes(IPAddress.HostToNetworkOrder(dataSize));

			byte[] buffer = new byte[2 + dataSize];

			int cursor = 0;
			Array.Copy(header, 0, buffer, cursor, header.Length);
			cursor += header.Length;

			Array.Copy(packetType, 0, buffer, cursor, packetType.Length);

			return buffer;
		}
	}
}