static void UpdateMonsterNote(IO.IFileSystem filesystem, Encoding encoding)
        {
            Assert.IsNotNull(filesystem, nameof(filesystem));
            Assert.IsNotNull(encoding, nameof(encoding));

            Console.WriteLine("monsnote.dt2");

            using (var reader = filesystem.OpenFile(@"data\monsnote\monsnote.dt2", encoding))
            {
                var monsternote = new MonsterNoteFile(reader);

                foreach (var record in monsternote.Records)
                {
                    var filename = Path.Combine(@"data\battle\dat", "ms" + record.Id.Substring(3) + ".dat");

                    using (var monsterfilereader = filesystem.OpenFile(filename, encoding))
                    {
                        var monsterfile = OpenMonsterDefinitionFile(monsterfilereader);
                        record.MonsterDefinitionFile = monsterfile;
                    }
                }

                var filebuffer = monsternote.Write(encoding);
                filesystem.SaveFile(@"data\monsnote\monsnote.dt2", filebuffer);
            }
        }
        static void Run(IO.IFileSystem filesystem, Encoding encoding, String datapath)
        {
            Assert.IsNotNull(filesystem, nameof(filesystem));
            Assert.IsNotNull(encoding, nameof(encoding));
            Assert.IsValidString(datapath, nameof(datapath));

            var data_text = Text.TextFileDescription.GetTextFileData_AoK();

            var stringtableitems = JsonTextItemFileIO.ReadFromFile(Path.Combine(datapath, "stringtable.json"));

            foreach (var item in data_text)
            {
                var textfilepath = Path.Combine(@"data\text", item.FileName);
                var jsonfilepath = Path.ChangeExtension(Path.Combine(datapath, "text", item.FileName), ".json");

                if (File.Exists(jsonfilepath) == true)
                {
                    Console.WriteLine(item.FileName);

                    using (var reader = filesystem.OpenFile(textfilepath, encoding))
                    {
                        var buffer = UpdateTextFile(reader, item.FilePointerDelegate, item.RecordCount, jsonfilepath);
                        filesystem.SaveFile(textfilepath, buffer);
                    }
                }
            }

            foreach (var filepath in filesystem.GetChildren(@"data\battle\dat", "ms*.dat"))
            {
                var filename     = Path.GetFileName(filepath);
                var jsonfilepath = Path.ChangeExtension(Path.Combine(datapath, "monster", filename), ".json");

                if (File.Exists(jsonfilepath) == true)
                {
                    Console.WriteLine(filename);

                    using (var reader = filesystem.OpenFile(filepath, encoding))
                    {
                        var buffer = UpdateMonsterFile(reader, jsonfilepath);
                        filesystem.SaveFile(filepath, buffer);
                    }
                }
            }

            UpdateMonsterNote(filesystem, encoding);
        }
        static void UpdateMonsterNote(IO.IFileSystem filesystem, Encoding encoding)
        {
            Assert.IsNotNull(filesystem, nameof(filesystem));
            Assert.IsNotNull(encoding, nameof(encoding));

            Console.WriteLine("monsnote.dt2");

            var filelist = GetMonsterNoteFileList();

            var allbuffers = new List <Byte[]>();

            foreach (var monsterfilenumber in filelist)
            {
                var monsterfilepath = Path.Combine(@"data\battle\dat", "ms" + monsterfilenumber + ".dat");
                using (var monsterreader = filesystem.OpenFile(monsterfilepath, encoding))
                {
                    var monsterfiledata = monsterreader.ReadBytes((Int32)monsterreader.Length);

                    var buffer = new Byte[8 + monsterreader.Length];

                    var foo      = "300" + monsterfilenumber;
                    var foobytes = Enumerable.Range(0, 4).Select(i => foo.Substring(i * 2, 2)).Select(str => (Byte)Int32.Parse(str, System.Globalization.NumberStyles.HexNumber)).Reverse().ToArray();

                    Array.Copy(foobytes, 0, buffer, 0, 4);
                    BinaryIO.WriteIntoBuffer(buffer, 4, (UInt32)monsterreader.Length);
                    Array.Copy(monsterfiledata, 0, buffer, 8, monsterfiledata.Length);

                    allbuffers.Add(buffer);
                }
            }

            allbuffers.Add(new Byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF });

            var totalsize  = allbuffers.Sum(x => x.Length);
            var filebuffer = new Byte[totalsize];

            var memorystream = new MemoryStream(filebuffer);

            foreach (var item in allbuffers)
            {
                memorystream.Write(item, 0, item.Length);
            }

            filesystem.SaveFile(@"data\monsnote\monsnote.dt2", filebuffer);
        }