64 lines
1.7 KiB
C#
64 lines
1.7 KiB
C#
using System;
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using System.Linq;
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using UnityEngine;
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namespace Network.NetworkTransport
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{
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public enum PacketType : byte
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{
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Data = 1,
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Ack = 2,
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}
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public struct Packet
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{
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public PacketType Type;
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public uint SequenceNumber;
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public byte[] Data;
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public long Timestamp;
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public byte[] ToBytes()
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{
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var result = new byte[1 + 4 + 8 + Data.Length];
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result[0] = (byte)Type;
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BitConverter.GetBytes(SequenceNumber).CopyTo(result, 1);
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BitConverter.GetBytes(Timestamp).CopyTo(result, 5);
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Data.CopyTo(result, 13);
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return result;
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}
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public static Packet FromBytes(byte[] data)
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{
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return new Packet
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{
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Type = (PacketType)data[0],
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SequenceNumber = BitConverter.ToUInt32(data, 1),
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Timestamp = BitConverter.ToInt64(data, 5),
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Data = new ArraySegment<byte>(data, 5, data.Length - 5).ToArray()
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};
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}
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public static Packet CreateDataPacket(uint seqNum, byte[] data)
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{
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return new Packet
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{
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Type = PacketType.Data,
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SequenceNumber = seqNum,
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Data = data,
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Timestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds()
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};
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}
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public static Packet CreateAckPacket(uint seqNum)
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{
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return new Packet
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{
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Type = PacketType.Ack,
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SequenceNumber = seqNum,
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Data = Array.Empty<byte>(),
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Timestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds()
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};
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}
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}
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}
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