FSO.Files.Formats.IFF.Chunks.SPR2Frame.Read C# (CSharp) Method

        public void Read(uint version, IoBuffer io, uint guessedSize)
        {
            Version = version;
            if (version == 1001)
            {
                var spriteVersion = io.ReadUInt32();
                var spriteSize = io.ReadUInt32();
                if (IffFile.RETAIN_CHUNK_DATA) ReadDeferred(1001, io);
                else ToDecode = io.ReadBytes(spriteSize);
            } else
            {
                if (IffFile.RETAIN_CHUNK_DATA) ReadDeferred(1000, io);
                else ToDecode = io.ReadBytes(guessedSize);
            }
        }

        /// <summary>
        /// Reads a SPR2 chunk from a stream.
        /// </summary>
        /// <param name="iff">An Iff instance.</param>
        /// <param name="stream">A Stream object holding a SPR2 chunk.</param>
        public override void Read(IffFile iff, Stream stream)
        {
            using (var io = IoBuffer.FromStream(stream, ByteOrder.LITTLE_ENDIAN))
            {
                var  version     = io.ReadUInt32();
                uint spriteCount = 0;

                if (version == 1000)
                {
                    spriteCount      = io.ReadUInt32();
                    DefaultPaletteID = io.ReadUInt32();
                    var offsetTable = new uint[spriteCount];
                    for (var i = 0; i < spriteCount; i++)
                    {
                        offsetTable[i] = io.ReadUInt32();
                    }

                    Frames = new SPR2Frame[spriteCount];
                    for (var i = 0; i < spriteCount; i++)
                    {
                        var frame = new SPR2Frame(this);
                        io.Seek(SeekOrigin.Begin, offsetTable[i]);

                        var guessedSize = ((i + 1 < offsetTable.Length) ? offsetTable[i + 1] : (uint)stream.Length) - offsetTable[i];

                        frame.Read(version, io, guessedSize);
                        Frames[i] = frame;
                    }
                }
                else if (version == 1001)
                {
                    DefaultPaletteID = io.ReadUInt32();
                    spriteCount      = io.ReadUInt32();

                    Frames = new SPR2Frame[spriteCount];
                    for (var i = 0; i < spriteCount; i++)
                    {
                        var frame = new SPR2Frame(this);
                        frame.Read(version, io, 0);
                        Frames[i] = frame;
                    }
                }
            }
        }