Alexandria.Engines.GoldBox.ArchiveFormat.LoadMatch C# (CSharp) Метод

        public override LoadMatchStrength LoadMatch(AssetLoader info)
        {
            var reader = info.Reader;
            long length = reader.BaseStream.Length;

            if (length < 2)
                return LoadMatchStrength.None;

            int headerLength = reader.ReadUInt16();
            if (headerLength == 0 || headerLength % ArchiveRecord.HeaderSize != 0 || length < headerLength + 2)
                return LoadMatchStrength.None;

            int dataOffset = headerLength + 2;
            int currentOffset = dataOffset;

            for (int index = 0; index < headerLength / 9; index++) {
                byte id = reader.ReadByte();
                int offset = reader.ReadInt32() + dataOffset;
                int uncompressedSize = reader.ReadUInt16();
                int compressedSize = reader.ReadUInt16();

                if (offset != currentOffset)
                    return LoadMatchStrength.None;
                currentOffset += compressedSize;

                // Offset is out of the file.
                if (offset > length)
                    return LoadMatchStrength.None;

                // File is empty but one of the sizes is not.
                if (compressedSize == 0 || uncompressedSize == 0)
                    return LoadMatchStrength.None;

                // Uncompressed expansion can't be used as a metric. I tried; some files expand one out of seven bytes. It's nuts how bad their RLE compressor was. At a guess it stopped a data run for every repeating byte, resulting in far more data runs when only a repeat run of 4 or more is guaranteed to result in compression (because then you've saved at least two bytes, accounting for your repeat run length and the next run length bytes).
            }

            return LoadMatchStrength.Strong;
        }