BigEndian.cs

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using System;
using System.IO;
using System.Linq;
 
namespace Terraria.ModLoader.IO
{
    public class BigEndianWriter : BinaryWriter
    {
        public BigEndianWriter(Stream output) : base(output) { }
 
        private void WriteBigEndian(byte[] bytes) {
            if (BitConverter.IsLittleEndian)
                bytes = bytes.Reverse().ToArray();
 
            Write(bytes);
        }
 
        public override void Write(short value) { WriteBigEndian(BitConverter.GetBytes(value)); }
        public override void Write(ushort value) { WriteBigEndian(BitConverter.GetBytes(value)); }
        public override void Write(int value) { WriteBigEndian(BitConverter.GetBytes(value)); }
        public override void Write(uint value) { WriteBigEndian(BitConverter.GetBytes(value)); }
        public override void Write(long value) { WriteBigEndian(BitConverter.GetBytes(value)); }
        public override void Write(ulong value) { WriteBigEndian(BitConverter.GetBytes(value)); }
        public override void Write(float value) { WriteBigEndian(BitConverter.GetBytes(value)); }
        public override void Write(double value) { WriteBigEndian(BitConverter.GetBytes(value)); }
    }
 
    public class BigEndianReader : BinaryReader
    {
        public BigEndianReader(Stream input) : base(input) { }
 
        private byte[] ReadBigEndian(int len) =>
            BitConverter.IsLittleEndian ? ReadBytes(len).Reverse().ToArray() : ReadBytes(len);
 
        public override short ReadInt16() => BitConverter.ToInt16(ReadBigEndian(2), 0);
        public override ushort ReadUInt16() => BitConverter.ToUInt16(ReadBigEndian(2), 0);
        public override int ReadInt32() => BitConverter.ToInt32(ReadBigEndian(4), 0);
        public override uint ReadUInt32() => BitConverter.ToUInt32(ReadBigEndian(4), 0);
        public override long ReadInt64() => BitConverter.ToInt64(ReadBigEndian(8), 0);
        public override ulong ReadUInt64() => BitConverter.ToUInt64(ReadBigEndian(8), 0);
        public override float ReadSingle() => BitConverter.ToSingle(ReadBigEndian(4), 0);
        public override double ReadDouble() => BitConverter.ToDouble(ReadBigEndian(8), 0);
    }
}