NScumm.Scumm.IO.ResourceIndex2.LoadIndex C# (CSharp) Method

        protected override void LoadIndex(GameInfo game)
        {
            using (var file = ServiceLocator.FileStorage.OpenFileRead(game.Path))
            {
                var br = new BinaryReader(new XorStream(file, 0xFF));
                var magic = br.ReadUInt16();
                switch (magic)
                {
                    case 0x0A31:
                        // Classic V1 game detected
                        ReadClassicIndexFile(br);
                        break;
                    case 0x0100:
                        // Enhanced V2 game detected
                        ReadEnhancedIndexFile(br);
                        break;
                    default:
                        throw new NotSupportedException(
                            string.Format("The magic id doesn't match ({0:X2})", magic));
                }
            }
        }