NetPacket.cs

Go to the documentation of this file.

using System.IO;
using Terraria.DataStructures;
 
namespace Terraria.Net;
 
public struct NetPacket
{
    private const int HEADER_SIZE = 5;
 
    public readonly ushort Id;
 
    public readonly CachedBuffer Buffer;
 
    public int Length { get; private set; }
 
    public BinaryWriter Writer => Buffer.Writer;
 
    public BinaryReader Reader => Buffer.Reader;
 
    public NetPacket(ushort id, int size)
    {
        this = default(NetPacket);
        Id = id;
        Buffer = BufferPool.Request(size + 5);
        Length = size + 5;
        Writer.Write((ushort)(size + 5));
        Writer.Write((byte)82);
        Writer.Write(id);
    }
 
    public void Recycle()
    {
        Buffer.Recycle();
    }
 
    public void ShrinkToFit()
    {
        if (Length != (int)Writer.BaseStream.Position)
        {
            Length = (int)Writer.BaseStream.Position;
            Writer.Seek(0, SeekOrigin.Begin);
            Writer.Write((ushort)Length);
            Writer.Seek(Length, SeekOrigin.Begin);
        }
    }
}