tex code

public struct Tex
        {
            public UInt32 Width;
            public UInt32 Height;
            public byte Format;
            public byte MagCount;
            public UInt16 SanityCheck;
            public string filename;
            public string OldFN;
            public string FilePath;
            public string Extension;
            public string OldFullPath;

            public UInt64 size;
            public string basedir;
        }

        public bool AddTex(string path, ArrayList ReceivingList)
        {
            Tex NewTex = new Tex();
            NewTex.OldFN = Path.GetFileNameWithoutExtension(path);
            NewTex.FilePath = Path.GetDirectoryName(path);
            NewTex.Extension = Path.GetExtension(path);
            byte[] byteArray = File.ReadAllBytes(path);
            using (BinaryReader br = new BinaryReader(new MemoryStream(byteArray)))
            {
                if (br.BaseStream.Length < 0x80) return false;
                br.BaseStream.Seek(0, SeekOrigin.Begin);
                NewTex.Width = br.ReadUInt32();
                NewTex.Height = br.ReadUInt32();
                NewTex.Format = br.ReadByte();
                if (NewTex.Format > 0xD || NewTex.Format < 0) return false;
                NewTex.MagCount = br.ReadByte();
                NewTex.SanityCheck = br.ReadUInt16();
                NewTex.filename = "";
                bool readname = false;
                while (br.BaseStream.Position < 0x80)
                {
                    byte b = br.ReadByte();
                    if (b == 0) readname = true;
                    if (readname)
                    {
                        while (br.BaseStream.Position < 0x80)
                        {
                            if (br.ReadByte() != 0) return false;
                        }
                    }
                    else
                    {
                        char c = (char)b;
                        NewTex.filename += c;
                    }
                }
                if (!NewTex.filename.EndsWith(".tex",true,System.Globalization.CultureInfo.CurrentCulture)){
                    return false;
                }
                NewTex.size = Convert.ToUInt64(br.BaseStream.Length);
                int basedirofs = Math.Max(NewTex.FilePath.LastIndexOf('\\'),NewTex.FilePath.LastIndexOf('/'));
                NewTex.basedir = NewTex.FilePath.Substring(basedirofs+1);
                NewTex.OldFullPath = "" + path;
            }
            ReceivingList.Add(NewTex);
            return true;
        }