TSW Maps Splitter - Program.cs

using System;
using System.Collections.Generic;
using System.IO;

namespace Map_Unpacker
{
    class Program
    {
        const string DIRECTORY_SOURCE = @"D:\Projects\TSW Encyclopedia\Resorces\exported\1010013 (Maps Merged)";
        const string DIRECTORY_TARGET = @"D:\Projects\TSW Encyclopedia\Resorces\Maps";

        static void Main(string[] args)
        {
            ReadFiles();

            Console.WriteLine("\nPress Enter to exit application...");
            Console.ReadLine();
        }

        private static void ReadFiles()
        {
            var index = 0;
            var di = new DirectoryInfo(DIRECTORY_SOURCE);
            foreach (var file in di.GetFiles())
            {
                var files = new List<FileModel>();

                using (var f = File.Open(file.FullName, FileMode.Open))
                {
                    var folder = Path.Combine(DIRECTORY_TARGET, Path.GetFileNameWithoutExtension(file.Name));

                    var currentFile = new FileModel
                    {
                        Filename = folder + "/" + index + ".jpg",
                        Bytes = new List<byte>()
                    };

                    if (Directory.Exists(folder) == false)
                    {
                        Directory.CreateDirectory(folder);
                    }

                    int currentByte = 0;
                    int previousByte = 0;
                    while ((currentByte = f.ReadByte()) >= 0)
                    {
                        currentFile.Bytes.Add((byte)currentByte);

                        if (string.Format("{0:X2}", previousByte) == "FF" && string.Format("{0:X2}", currentByte) == "D9")
                        {
                            SaveFile(currentFile);

                            index++;

                            currentFile = new FileModel
                            {
                                Filename = folder + "/" + index + ".jpg",
                                Bytes = new List<byte>()
                            };
                        }

                        previousByte = currentByte;
                    }
                }
                index = 0;
            }
        }

        private static void SaveFile(FileModel fileModel)
        {
            File.WriteAllBytes(fileModel.Filename, fileModel.Bytes.ToArray());
        }
    }
}