CASCExplorer.DownloadHandler.DownloadHandler C# (CSharp) Method

        public DownloadHandler(BinaryReader stream, BackgroundWorkerEx worker)
        {
            worker?.ReportProgress(0, "Loading \"download\"...");

            stream.Skip(2); // DL

            byte b1 = stream.ReadByte();
            byte b2 = stream.ReadByte();
            byte b3 = stream.ReadByte();

            int numFiles = stream.ReadInt32BE();

            short numTags = stream.ReadInt16BE();

            int numMaskBytes = (numFiles + 7) / 8;

            for (int i = 0; i < numFiles; i++)
            {
                MD5Hash key = stream.Read<MD5Hash>();

                //byte[] unk = stream.ReadBytes(0xA);
                stream.Skip(0xA);

                //var entry = new DownloadEntry() { Index = i, Unk = unk };
                var entry = new DownloadEntry() { Index = i };

                DownloadData.Add(key, entry);

                worker?.ReportProgress((int)((i + 1) / (float)numFiles * 100));
            }

            for (int i = 0; i < numTags; i++)
            {
                DownloadTag tag = new DownloadTag();
                string name = stream.ReadCString();
                tag.Type = stream.ReadInt16BE();

                byte[] bits = stream.ReadBytes(numMaskBytes);

                for (int j = 0; j < numMaskBytes; j++)
                    bits[j] = (byte)((bits[j] * 0x0202020202 & 0x010884422010) % 1023);

                tag.Bits = new BitArray(bits);

                Tags.Add(name, tag);
            }
        }