CASCExplorer.CDNIndexHandler.ParseIndex C# (CSharp) Метод

        private void ParseIndex(Stream stream, int i)
        {
            using (var br = new BinaryReader(stream))
            {
                stream.Seek(-12, SeekOrigin.End);
                int count = br.ReadInt32();
                stream.Seek(0, SeekOrigin.Begin);

                if (count * (16 + 4 + 4) > stream.Length)
                    throw new Exception("ParseIndex failed");

                for (int j = 0; j < count; ++j)
                {
                    MD5Hash key = br.Read<MD5Hash>();

                    if (key.IsZeroed()) // wtf?
                        key = br.Read<MD5Hash>();

                    if (key.IsZeroed()) // wtf?
                        throw new Exception("key.IsZeroed()");

                    IndexEntry entry = new IndexEntry();
                    entry.Index = i;
                    entry.Size = br.ReadInt32BE();
                    entry.Offset = br.ReadInt32BE();

                    CDNIndexData.Add(key, entry);
                }
            }
        }