create NResUI

NResLib/NResArchive.cs

@@ -0,0 +1,45 @@
+namespace NResLib;
+
+/// <summary>
+/// Архив NRes (файл NRes)
+/// </summary>
+public record NResArchive(NResArchiveHeader Header, List<ListMetadataItem> Files);
+
+/// <summary>
+/// Заголовок файла
+/// </summary>
+/// <param name="NRes">[0..4] ASCII NRes</param>
+/// <param name="Version">[4..8] Версия кодировщика (должно быть всегда 0x100)</param>
+/// <param name="FileCount">[8..12] Количество файлов </param>
+/// <param name="TotalFileLengthBytes">[12..16] Длина всего архива</param>
+public record NResArchiveHeader(string NRes, int Version, int FileCount, int TotalFileLengthBytes);
+
+/// <summary>
+/// В конце файла есть список метаданных,
+/// каждый элемент это 64 байта,
+/// найти начало можно как (Header.TotalFileLengthBytes - Header.FileCount * 64)
+/// </summary>
+/// <param name="FileType">[0..8] ASCII описание типа файла, например TEXM или MAT0</param>
+/// <param name="Magic1">[8..12] Неизвестное число</param>
+/// <param name="FileLength">[12..16] Длина файла в байтах</param>
+/// <param name="Magic2">[16..20] Неизвестное число</param>
+/// <param name="FileName">[20..40] ASCII имя файла</param>
+/// <param name="Magic3">[40..44] Неизвестное число</param>
+/// <param name="Magic4">[44..48] Неизвестное число</param>
+/// <param name="Magic5">[48..52] Неизвестное число</param>
+/// <param name="Magic6">[52..56] Неизвестное число</param>
+/// <param name="OffsetInFile">[56..60] Смещение подфайла от начала NRes (именно самого NRes) в байтах</param>
+/// <param name="Index">[60..64] Индекс в файле (от 0, не больше чем кол-во файлов)</param>
+public record ListMetadataItem(
+    string FileType,
+    int Magic1,
+    int FileLength,
+    int Magic2,
+    string FileName,
+    int Magic3,
+    int Magic4,
+    int Magic5,
+    int Magic6,
+    int OffsetInFile,
+    int Index
+);

NResLib/NResLib.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net8.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>

NResLib/NResParseResult.cs

@@ -0,0 +1,3 @@
+namespace NResLib;
+
+public record NResParseResult(NResArchive? Archive = null, string? Error = null);

NResLib/NResParser.cs

@@ -0,0 +1,78 @@
+using System.Buffers.Binary;
+using System.Text;
+
+namespace NResLib;
+
+public static class NResParser
+{
+    public static NResParseResult ReadFile(string path)
+    {
+        using FileStream nResFs = new FileStream(path, FileMode.Open);
+
+        if (nResFs.Length < 16)
+        {
+            return new NResParseResult(null, "Файл не может быть NRes, менее 16 байт");
+        }
+        
+        Span<byte> buffer = stackalloc byte[16];
+
+        nResFs.ReadExactly(buffer);
+
+        if (buffer[0] != 'N' || buffer[1] != 'R' || buffer[2] != 'e' || buffer[3] != 's')
+        {
+            return new NResParseResult(null, "Файл не начинается с NRes");
+        }
+
+        var header = new NResArchiveHeader(
+            NRes: Encoding.ASCII.GetString(buffer[0..4]),
+            Version: BinaryPrimitives.ReadInt32LittleEndian(buffer[4..8]),
+            FileCount: BinaryPrimitives.ReadInt32LittleEndian(buffer[8..12]),
+            TotalFileLengthBytes: BinaryPrimitives.ReadInt32LittleEndian(buffer[12..16])
+        );
+
+        if (header.TotalFileLengthBytes != nResFs.Length)
+        {
+            return new NResParseResult(
+                null,
+                $"Длина файла не совпадает с заявленным в заголовке.\n" +
+                $"Заявлено: {header.TotalFileLengthBytes}\n" +
+                $"Фактически: {nResFs.Length}"
+            );
+        }
+
+        nResFs.Seek(-header.FileCount * 64, SeekOrigin.End);
+
+        var elements = new List<ListMetadataItem>(header.FileCount);
+
+        Span<byte> metaDataBuffer = stackalloc byte[64];
+        for (int i = 0; i < header.FileCount; i++)
+        {
+            nResFs.ReadExactly(metaDataBuffer);
+
+            elements.Add(
+                new ListMetadataItem(
+                    FileType: Encoding.ASCII.GetString(metaDataBuffer[..8]),
+                    Magic1: BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer[8..12]),
+                    FileLength: BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer[12..16]),
+                    Magic2: BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer[16..20]),
+                    FileName: Encoding.ASCII.GetString(metaDataBuffer[20..40]),
+                    Magic3: BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer[40..44]),
+                    Magic4: BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer[44..48]),
+                    Magic5: BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer[48..52]),
+                    Magic6: BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer[52..56]),
+                    OffsetInFile: BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer[56..60]),
+                    Index: BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer[60..64])
+                )
+            );
+
+            metaDataBuffer.Clear();
+        }
+
+        return new NResParseResult(
+            new NResArchive(
+                Header: header,
+                Files: elements
+            )
+        );
+    }
+}

NResUI/Abstractions/IExitReceiver.cs

@@ -0,0 +1,7 @@
+namespace NResUI.Abstractions
+{
+    public interface IExitReceiver
+    {
+        void OnExit();
+    }
+}

NResUI/Abstractions/IImGuiPanel.cs

@@ -0,0 +1,7 @@
+namespace NResUI.Abstractions
+{
+    public interface IImGuiPanel
+    {
+        void OnImGuiRender();
+    }
+}

NResUI/Abstractions/IKeyPressReceiver.cs

@@ -0,0 +1,17 @@
+using Silk.NET.Input;
+
+namespace NResUI.Abstractions
+{
+    public interface IKeyPressReceiver
+    {
+        void OnKeyPressed(Key key);
+    }
+    public interface IKeyReleaseReceiver
+    {
+        void OnKeyReleased(Key key);
+    }
+    public interface IKeyDownReceiver
+    {
+        void OnKeyDown(Key key);
+    }
+}

NResUI/Abstractions/IService.cs

@@ -0,0 +1,6 @@
+namespace NResUI.Abstractions
+{
+    public interface IService
+    {
+    }
+}

NResUI/Abstractions/IUpdateReceiver.cs

@@ -0,0 +1,10 @@
+namespace NResUI.Abstractions
+{
+    public interface IUpdateReceiver
+    {
+        /// <summary>
+        /// Called before every UI render 
+        /// </summary>
+        void OnUpdate(float delta);
+    }
+}

NResUI/App.cs

@@ -0,0 +1,140 @@
+using System.Numerics;
+using ImGuiNET;
+using Microsoft.Extensions.DependencyInjection;
+using NResUI.Abstractions;
+using NResUI.Models;
+using Silk.NET.Input;
+using Silk.NET.OpenGL;
+using Silk.NET.Windowing;
+
+namespace NResUI;
+
+public class App
+    {
+        public GL GL { get; set; }
+        public IInputContext Input { get; set; }
+
+        public static App Instance;
+
+        private static bool _dockspaceOpen = true;
+        private static bool _optFullscreenPersistant = true;
+        private static bool _optFullscreen = _optFullscreenPersistant;
+
+        private static ImGuiDockNodeFlags _dockspaceFlags = ImGuiDockNodeFlags.None;
+
+        public ImFontPtr OpenSansFont;
+
+        private List<IImGuiPanel> _imGuiPanels;
+
+        public App()
+        {
+            Instance = this;
+        }
+
+        public void Init(IWindow window, GL openGl, ImFontPtr openSansFont)
+        {
+            ImGui.StyleColorsLight();
+
+            IServiceCollection serviceCollection = new ServiceCollection();
+
+            foreach (var type in Utils.GetAssignableTypes<IService>())
+            {
+                serviceCollection.AddSingleton(type);
+            }
+
+            foreach (var type in Utils.GetAssignableTypes<IImGuiPanel>())
+            {
+                serviceCollection.AddSingleton(type);
+            }
+
+            serviceCollection.AddSingleton(new ExplorerViewModel());
+
+            var serviceProvider = serviceCollection.BuildServiceProvider();
+
+            _imGuiPanels = Utils.GetAssignableTypes<IImGuiPanel>()
+                .Select(t => (serviceProvider.GetService(t) as IImGuiPanel)!)
+                .ToList();
+        }
+
+        public void OnImGuiRender()
+        {
+            ImGui.PushFont(OpenSansFont);
+
+            // We are using the ImGuiWindowFlags_NoDocking flag to make the parent window not dockable into,
+            // because it would be confusing to have two docking targets within each others.
+            var windowFlags = ImGuiWindowFlags.MenuBar | ImGuiWindowFlags.NoDocking;
+            if (_optFullscreen)
+            {
+                var viewport = ImGui.GetMainViewport();
+                ImGui.SetNextWindowPos(viewport.Pos);
+                ImGui.SetNextWindowSize(viewport.Size);
+                ImGui.SetNextWindowViewport(viewport.ID);
+                ImGui.PushStyleVar(ImGuiStyleVar.WindowRounding, 0.0f);
+                ImGui.PushStyleVar(ImGuiStyleVar.WindowBorderSize, 0.0f);
+                windowFlags |= ImGuiWindowFlags.NoTitleBar | ImGuiWindowFlags.NoCollapse | ImGuiWindowFlags.NoResize |
+                                ImGuiWindowFlags.NoMove;
+                windowFlags |= ImGuiWindowFlags.NoBringToFrontOnFocus | ImGuiWindowFlags.NoNavFocus;
+            }
+
+            // When using ImGuiDockNodeFlags_PassthruCentralNode, DockSpace() will render our background and handle the pass-thru hole, so we ask Begin() to not render a background.
+            if ((_dockspaceFlags & ImGuiDockNodeFlags.PassthruCentralNode) != 0)
+                windowFlags |= ImGuiWindowFlags.NoBackground;
+
+            // Important: note that we proceed even if Begin() returns false (aka window is collapsed).
+            // This is because we want to keep our DockSpace() active. If a DockSpace() is inactive, 
+            // all active windows docked into it will lose their parent and become undocked.
+            // We cannot preserve the docking relationship between an active window and an inactive docking, otherwise 
+            // any change of dockspace/settings would lead to windows being stuck in limbo and never being visible.
+            ImGui.PushStyleVar(ImGuiStyleVar.WindowPadding, new Vector2(0.0f, 0.0f));
+            ImGui.Begin("DockSpace Demo", ref _dockspaceOpen, windowFlags);
+            ImGui.PopStyleVar();
+
+            if (_optFullscreen)
+                ImGui.PopStyleVar(2);
+
+            // DockSpace
+            var io = ImGui.GetIO();
+            var style = ImGui.GetStyle();
+            var minWinSizeX = style.WindowMinSize.X;
+            style.WindowMinSize.X = 370.0f;
+            if ((io.ConfigFlags & ImGuiConfigFlags.DockingEnable) != 0)
+            {
+                var dockspaceId = ImGui.GetID("MyDockSpace");
+                ImGui.DockSpace(dockspaceId, new Vector2(0.0f, 0.0f), _dockspaceFlags);
+            }
+
+            style.WindowMinSize.X = minWinSizeX;
+
+            foreach (var imGuiPanel in _imGuiPanels)
+            {
+                imGuiPanel.OnImGuiRender();
+            }
+
+            ImGui.ShowMetricsWindow();
+            ImGui.ShowDemoWindow();
+
+            ImGui.PopFont();
+
+            ImGui.End();
+        }
+
+        public void Exit()
+        {
+        }
+
+        public void Update(double delta)
+        {
+        }
+
+        public void OnKeyPressed(Key key)
+        {
+        }
+
+        public void OnKeyDown(Key key)
+        {
+        }
+
+        public void OnKeyReleased(Key key)
+        {
+        }
+    }

NResUI/ImGuiUI/ExplorerPanel.cs

@@ -0,0 +1,127 @@
+using ImGuiNET;
+using NResUI.Abstractions;
+using NResUI.Models;
+
+namespace NResUI.ImGuiUI;
+
+public class ExplorerPanel : IImGuiPanel
+{
+    private readonly ExplorerViewModel _viewModel;
+
+    public ExplorerPanel(ExplorerViewModel viewModel)
+    {
+        _viewModel = viewModel;
+    }
+
+    public void OnImGuiRender()
+    {
+        if (ImGui.Begin("Explorer"))
+        {
+            if (!_viewModel.HasFile)
+            {
+                ImGui.Text("No NRes is opened");
+            }
+            else
+            {
+                if (_viewModel.Error != null)
+                {
+                    ImGui.Text(_viewModel.Error);
+                }
+
+                if (_viewModel.Archive is not null)
+                {
+                    ImGui.Text(_viewModel.Path);
+                    
+                    ImGui.Text("Header: ");
+                    ImGui.SameLine();
+                    ImGui.Text(_viewModel.Archive.Header.NRes);
+                    ImGui.Text("Version: ");
+                    ImGui.SameLine();
+                    ImGui.Text(_viewModel.Archive.Header.Version.ToString());
+                    ImGui.Text("File Count: ");
+                    ImGui.SameLine();
+                    ImGui.Text(_viewModel.Archive.Header.FileCount.ToString());
+                    ImGui.Text("Total File Length: ");
+                    ImGui.SameLine();
+                    ImGui.Text(_viewModel.Archive.Header.TotalFileLengthBytes.ToString());
+
+
+                    if (ImGui.BeginTable("content", 11))
+                    {
+                        ImGui.TableSetupColumn("Тип файла");
+                        ImGui.TableSetupColumn("Magic1");
+                        ImGui.TableSetupColumn("Длина файла в байтах");
+                        ImGui.TableSetupColumn("Magic2");
+                        ImGui.TableSetupColumn("Имя файла");
+                        ImGui.TableSetupColumn("Magic3");
+                        ImGui.TableSetupColumn("Magic4");
+                        ImGui.TableSetupColumn("Magic5");
+                        ImGui.TableSetupColumn("Magic6");
+                        ImGui.TableSetupColumn("Смещение в байтах");
+                        ImGui.TableSetupColumn("Индекс в файле");
+
+                        ImGui.TableHeadersRow();
+
+                        for (int i = 0; i < _viewModel.Archive.Files.Count; i++)
+                        {
+                            ImGui.TableNextRow();
+                            ImGui.TableNextColumn();
+                            ImGui.Text(_viewModel.Archive.Files[i].FileType);
+                            ImGui.TableNextColumn();
+                            ImGui.Text(
+                                _viewModel.Archive.Files[i]
+                                    .Magic1.ToString()
+                            );
+                            ImGui.TableNextColumn();
+                            ImGui.Text(
+                                _viewModel.Archive.Files[i]
+                                    .FileLength.ToString()
+                            );
+                            ImGui.TableNextColumn();
+                            ImGui.Text(
+                                _viewModel.Archive.Files[i]
+                                    .Magic2.ToString()
+                            );
+                            ImGui.TableNextColumn();
+                            ImGui.Text(_viewModel.Archive.Files[i].FileName);
+                            ImGui.TableNextColumn();
+                            ImGui.Text(
+                                _viewModel.Archive.Files[i]
+                                    .Magic3.ToString()
+                            );
+                            ImGui.TableNextColumn();
+                            ImGui.Text(
+                                _viewModel.Archive.Files[i]
+                                    .Magic4.ToString()
+                            );
+                            ImGui.TableNextColumn();
+                            ImGui.Text(
+                                _viewModel.Archive.Files[i]
+                                    .Magic5.ToString()
+                            );
+                            ImGui.TableNextColumn();
+                            ImGui.Text(
+                                _viewModel.Archive.Files[i]
+                                    .Magic6.ToString()
+                            );
+                            ImGui.TableNextColumn();
+                            ImGui.Text(
+                                _viewModel.Archive.Files[i]
+                                    .OffsetInFile.ToString()
+                            );
+                            ImGui.TableNextColumn();
+                            ImGui.Text(
+                                _viewModel.Archive.Files[i]
+                                    .Index.ToString()
+                            );
+                        }
+
+                        ImGui.EndTable();
+                    }
+                }
+            }
+
+            ImGui.End();
+        }
+    }
+}

NResUI/ImGuiUI/ImGuiModalPanel.cs

@@ -0,0 +1,39 @@
+using System.Numerics;
+using ImGuiNET;
+using NResUI.Abstractions;
+
+namespace NResUI.ImGuiUI;
+
+public abstract class ImGuiModalPanel : IImGuiPanel
+{
+    protected abstract string ImGuiId { get; }
+
+    private bool _shouldOpen = false;
+
+    public virtual void Open()
+    {
+        _shouldOpen = true;
+    }
+
+    protected abstract void OnImGuiRenderContent();
+
+    public void OnImGuiRender()
+    {
+        // this is a ImGui stack fix. Because menubars and some other controls use their separate stack context,
+        // The panel gets rendered on it's own, at the root of the stack, and with _shouldOpen we control, if the panel should open this frame.
+        if (_shouldOpen)
+        {
+            ImGui.OpenPopup(ImGuiId, ImGuiPopupFlags.AnyPopupLevel);
+            _shouldOpen = false;
+        }
+
+        ImGui.SetNextWindowSize(new Vector2(600, 400));
+
+        if (ImGui.BeginPopup(ImGuiId, ImGuiWindowFlags.NoResize))
+        {
+            OnImGuiRenderContent();
+
+            ImGui.EndPopup();
+        }
+    }
+}

NResUI/ImGuiUI/MainMenuBar.cs

@@ -0,0 +1,108 @@
+using System.Numerics;
+using ImGuiNET;
+using NativeFileDialogSharp;
+using NResLib;
+using NResUI.Abstractions;
+using NResUI.Models;
+
+namespace NResUI.ImGuiUI
+{
+    public class MainMenuBar : IImGuiPanel
+    {
+        private readonly ExplorerViewModel _explorerViewModel;
+
+        public MainMenuBar(ExplorerViewModel explorerViewModel)
+        {
+            _explorerViewModel = explorerViewModel;
+        }
+
+        public void OnImGuiRender()
+        {
+            if (ImGui.BeginMenuBar())
+            {
+                if (ImGui.BeginMenu("File"))
+                {
+                    if (ImGui.MenuItem("Open NRes"))
+                    {
+                        var result = Dialog.FileOpen();
+
+                        if (result.IsOk)
+                        {
+                            var path = result.Path;
+
+                            var parseResult = NResParser.ReadFile(path);
+
+                            _explorerViewModel.SetParseResult(parseResult, path);
+                        }
+                    }
+
+                    if (_explorerViewModel.HasFile)
+                    {
+                        if (ImGui.MenuItem("Экспортировать"))
+                        {
+                            var result = Dialog.FolderPicker();
+
+                            if (result.IsOk)
+                            {
+                                var path = result.Path;
+
+                                Console.WriteLine(path);
+                            }
+                        }
+                    }
+
+                    if (ImGui.BeginMenu("Open Recent"))
+                    {
+                        ImGui.EndMenu();
+                    }
+
+                    if (ImGui.MenuItem("Exit"))
+                    {
+                        App.Instance.Exit();
+                    }
+
+                    ImGui.EndMenu();
+                }
+
+                if (ImGui.BeginMenu("Windows"))
+                {
+                    if (ImGui.MenuItem("Settings"))
+                    {
+                    }
+
+                    ImGui.EndMenu();
+                }
+
+                ImGui.EndMenuBar();
+            }
+        }
+
+        // This is a direct port of imgui_demo.cpp HelpMarker function
+
+        // https://github.com/ocornut/imgui/blob/master/imgui_demo.cpp#L190
+
+        private void ShowHint(string message)
+        {
+            // ImGui.TextDisabled("(?)");
+            if (ImGui.IsItemHovered())
+            {
+                // Change background transparency
+                ImGui.PushStyleColor(
+                    ImGuiCol.PopupBg,
+                    new Vector4(
+                        1,
+                        1,
+                        1,
+                        0.8f
+                    )
+                );
+                ImGui.BeginTooltip();
+                ImGui.PushTextWrapPos(ImGui.GetFontSize() * 35.0f);
+                ImGui.TextUnformatted(message);
+                ImGui.PopTextWrapPos();
+                ImGui.EndTooltip();
+                ImGui.PopStyleColor();
+            }
+        }
+    }
+}

NResUI/Models/ExplorerViewModel.cs

@@ -0,0 +1,26 @@
+using NResLib;
+
+namespace NResUI.Models;
+
+public class ExplorerViewModel
+{
+    public bool HasFile { get; set; }
+    public string? Error { get; set; }
+
+    public NResArchive? Archive { get; set; }
+
+    public string? Path { get; set; }
+
+    public void SetParseResult(NResParseResult result, string path)
+    {
+        Error = result.Error;
+
+        if (result.Archive != null)
+        {
+            HasFile = true;
+        }
+
+        Archive = result.Archive;
+        Path = path;
+    }
+}

NResUI/NResUI.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net8.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <Content Include="assets\**\*" CopyToOutputDirectory="PreserveNewest" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+      <PackageReference Include="NativeFileDialogSharp" Version="0.5.0" />
+      <PackageReference Include="Silk.NET" Version="2.22.0" />
+      <PackageReference Include="Silk.NET.OpenGL.Extensions.ImGui" Version="2.22.0" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\NResLib\NResLib.csproj" />
+    </ItemGroup>
+
+</Project>

NResUI/Program.cs

@@ -0,0 +1,109 @@
+// See https://aka.ms/new-console-template for more information
+
+using System.Drawing;
+using ImGuiNET;
+using NResUI;
+using Silk.NET.Input;
+using Silk.NET.OpenGL;
+using Silk.NET.OpenGL.Extensions.ImGui;
+using Silk.NET.Windowing;
+
+var window = Window.Create(WindowOptions.Default);
+
+// Declare some variables
+ImGuiController controller = null!;
+GL gl = null!;
+IInputContext inputContext = null!;
+
+var app = new App();
+
+// Our loading function
+window.Load += () =>
+{
+    var openGl = window.CreateOpenGL();
+
+    ImFontPtr mainFont = null;
+
+    controller = new ImGuiController(
+        gl = openGl, // load OpenGL
+        window, // pass in our window
+        inputContext = window.CreateInput(), // create an input context
+        () =>
+        {
+            var io = ImGui.GetIO();
+            io.ConfigFlags |= ImGuiConfigFlags.DockingEnable;
+            mainFont = io.Fonts.AddFontFromFileTTF(
+                filename: "assets/Font/OpenSans-Regular.ttf",
+                size_pixels: 18,
+                font_cfg: null,
+                glyph_ranges: io.Fonts.GetGlyphRangesCyrillic()
+            );
+        }
+    );
+    app.Init(window, openGl, mainFont);
+
+    inputContext.Keyboards[0]
+        .KeyDown += (keyboard, key, scancode) => { app.OnKeyDown(key); };
+    inputContext.Keyboards[0]
+        .KeyUp += (keyboard, key, scancode) => { app.OnKeyPressed(key); };
+    inputContext.Keyboards[0]
+        .KeyUp += (keyboard, key, scancode) => { app.OnKeyReleased(key); };
+};
+
+// Handle resizes
+window.FramebufferResize += s =>
+{
+    // Adjust the viewport to the new window size
+    gl.Viewport(s);
+};
+
+// Handles the dile drop and receives the array of paths to the files.
+window.FileDrop += paths => { };
+
+window.Update += delta =>
+{
+    // Make sure ImGui is up-to-date
+    controller.Update((float) delta);
+
+    app.Update(delta);
+};
+
+// The render function
+window.Render += delta =>
+{
+    // This is where you'll do any rendering beneath the ImGui context
+    // Here, we just have a blank screen.
+    gl.ClearColor(
+        Color.FromArgb(
+            255,
+            (int) (.45f * 255),
+            (int) (.55f * 255),
+            (int) (.60f * 255)
+        )
+    );
+    gl.Clear((uint) ClearBufferMask.ColorBufferBit);
+
+    app.OnImGuiRender();
+
+    // Make sure ImGui renders too!
+    controller.Render();
+};
+
+// The closing function
+window.Closing += () =>
+{
+    app.Exit();
+
+    ImGui.SaveIniSettingsToDisk("imgui.ini");
+    // Dispose our controller first
+    controller?.Dispose();
+
+    // Dispose the input context
+    inputContext?.Dispose();
+
+    // Unload OpenGL
+    gl?.Dispose();
+};
+
+// Now that everything's defined, let's run this bad boy!
+window.Run();

NResUI/Utils.cs

@@ -0,0 +1,64 @@
+using System.Reflection;
+
+namespace NResUI
+{
+    public static class Utils
+    {
+        public static bool IsDirectory(this FileSystemInfo info)
+        {
+            // get the file attributes for file or directory
+            FileAttributes attr = info.Attributes;
+
+            //detect whether its a directory or file
+            if ((attr & FileAttributes.Directory) == FileAttributes.Directory)
+                return true;
+            else
+                return false;
+        }
+
+        public static bool IsDirectoryPath(this string path)
+        {
+            return Directory.Exists(path);
+        }
+
+        public static void ClearContent(this DirectoryInfo directoryInfo)
+        {
+            foreach (var directory in directoryInfo.EnumerateDirectories())
+            {
+                directory.Delete(true);
+            }
+
+            foreach (var file in directoryInfo.EnumerateFiles())
+            {
+                file.Delete();
+            }
+        }
+
+        public static IEnumerable<Type> GetAssignableTypesFromAssembly<T>(Assembly assembly)
+        {
+            return assembly.ExportedTypes
+                .Where(t => t.IsAssignableTo(typeof(T)) && t is {IsAbstract: false, IsInterface: false});
+        }
+
+        public static IList<Type> GetAssignableTypes<T>()
+        {
+            var executingAssembly = Assembly.GetExecutingAssembly();
+            var referencedAssemblyNames = executingAssembly.GetReferencedAssemblies();
+            var types = referencedAssemblyNames.SelectMany(
+                    name =>
+                        GetAssignableTypesFromAssembly<T>(Assembly.Load(name))
+                )
+                .Concat(
+                    GetAssignableTypesFromAssembly<T>(executingAssembly)
+                )
+                .ToList();
+
+            return types;
+        }
+
+        public static bool IsNullOrEmpty(this string? str)
+        {
+            return string.IsNullOrEmpty(str);
+        }
+    }
+}

ParkanPlayground.sln

@@ -6,6 +6,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TextureDecoder", "TextureDe
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NLUnpacker", "NLUnpacker\NLUnpacker.csproj", "{50C83E6C-23ED-4A8E-B948-89686A742CF0}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NResUI", "NResUI\NResUI.csproj", "{7456A089-0701-416C-8668-1F740BF4B72C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NResLib", "NResLib\NResLib.csproj", "{9429AEAE-80A6-4EE7-AB66-9161CC4C3A3D}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -24,5 +28,13 @@ Global
 		{50C83E6C-23ED-4A8E-B948-89686A742CF0}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{50C83E6C-23ED-4A8E-B948-89686A742CF0}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{50C83E6C-23ED-4A8E-B948-89686A742CF0}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7456A089-0701-416C-8668-1F740BF4B72C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7456A089-0701-416C-8668-1F740BF4B72C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7456A089-0701-416C-8668-1F740BF4B72C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7456A089-0701-416C-8668-1F740BF4B72C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9429AEAE-80A6-4EE7-AB66-9161CC4C3A3D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9429AEAE-80A6-4EE7-AB66-9161CC4C3A3D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9429AEAE-80A6-4EE7-AB66-9161CC4C3A3D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9429AEAE-80A6-4EE7-AB66-9161CC4C3A3D}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal

ParkanPlayground/ListMetadataItem.cs

@@ -1,3 +0,0 @@
-namespace ParkanPlayground;
-
-public record ListMetadataItem(string ItemType, int ItemLength, string FileName, int OffsetInFile);

ParkanPlayground/ParkanPlayground.csproj

@@ -7,4 +7,8 @@
         <Nullable>enable</Nullable>
     </PropertyGroup>
 
+    <ItemGroup>
+      <ProjectReference Include="..\NResLib\NResLib.csproj" />
+    </ItemGroup>
+
 </Project>

ParkanPlayground/Program.cs

@@ -1,105 +1,41 @@
 using System.Buffers.Binary;
-using System.Text;using ParkanPlayground;
+using System.Text;
+using NResLib;
 
 var libFile = "C:\\Program Files (x86)\\Nikita\\Iron Strategy\\ui\\ui_back.lib";
 
-using FileStream nResFs = new FileStream(libFile, FileMode.Open);
+var parseResult = NResParser.ReadFile(libFile);
 
-Span<byte> buffer = stackalloc byte[4];
-
-nResFs.ReadExactly(buffer);
-
-var nResHeader = BinaryPrimitives.ReadInt32LittleEndian(buffer);
-
-var str = Encoding.ASCII.GetString(buffer);
-
-Console.WriteLine($"NRES Header: {nResHeader:X} - {str}");
-
-// ----
-nResFs.ReadExactly(buffer);
-
-var version = BinaryPrimitives.ReadInt32LittleEndian(buffer);
-
-Console.WriteLine($"VERSION: {version:X}");
-
-// ----
-nResFs.ReadExactly(buffer);
-
-var elementCount = BinaryPrimitives.ReadInt32LittleEndian(buffer);
-
-Console.WriteLine($"ElementCount: {elementCount}");
-
-// ----
-nResFs.ReadExactly(buffer);
-
-var totalLength = BinaryPrimitives.ReadInt32LittleEndian(buffer);
-
-Console.WriteLine($"TOTAL_LENGTH: {totalLength}");
-
-// ----
-
-nResFs.Seek(-elementCount * 64, SeekOrigin.End);
-
-_ = 5;
-
-var elements = new List<ListMetadataItem>(elementCount);
-
-Span<byte> metaDataBuffer = stackalloc byte[64];
-for (int i = 0; i < elementCount; i++)
+if (parseResult.Error != null)
 {
-    nResFs.ReadExactly(metaDataBuffer);
-
-    var itemType = Encoding.ASCII.GetString(metaDataBuffer.Slice(0, 8));
-
-    var itemLength = BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer.Slice(12, 4));
-
-    var fileNameBlock = metaDataBuffer.Slice(20, 20);
-    var len = fileNameBlock.IndexOf((byte)'\0');
-    if (len == -1) len = 20; // whole 20 bytes is a filename
-    var fileName = Encoding.ASCII.GetString(fileNameBlock.Slice(0, len));
-
-    var offsetInFile = BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer.Slice(56, 4));
-
-    var lastMagicNumber = BinaryPrimitives.ReadInt32LittleEndian(metaDataBuffer.Slice(60, 4));
-
-    Console.WriteLine(
-        $"File {i+1}: \n" +
-        $"\tType: {itemType}\n" +
-        $"\tItemLength: {itemLength}\n" +
-        $"\tFileName: {fileName}\n" +
-        $"\tOffsetInFile: {offsetInFile}\n" +
-        $"\tLastMagicNumber: {lastMagicNumber}"
-    );
-    
-    elements.Add(new ListMetadataItem(itemType, itemLength, fileName, offsetInFile));
-    
-    metaDataBuffer.Clear();
+    Console.WriteLine(parseResult.Error);
+    return;
 }
 
-var libFileName = new FileInfo(libFile).Name;
-
-if (Directory.Exists(libFileName))
-{
-    Directory.Delete(libFileName, true);
-}
-
-var dir = Directory.CreateDirectory(libFileName);
-
-byte[] copyBuffer = new byte[8192];
-
-foreach (var element in elements)
-{
-    nResFs.Seek(element.OffsetInFile, SeekOrigin.Begin);
-    using var destFs = new FileStream(Path.Combine(libFileName, element.FileName), FileMode.CreateNew);
-
-    var totalCopiedBytes = 0;
-    while (totalCopiedBytes < element.ItemLength)
-    {
-        var needReadBytes = Math.Min(element.ItemLength - totalCopiedBytes, copyBuffer.Length);
-        var readBytes = nResFs.Read(copyBuffer, 0, needReadBytes);
-        
-        destFs.Write(copyBuffer, 0, readBytes);
-
-        totalCopiedBytes += readBytes;
-    }
-}
+// var libFileName = new FileInfo(libFile).Name;
+//
+// if (Directory.Exists(libFileName))
+// {
+//     Directory.Delete(libFileName, true);
+// }
+//
+// var dir = Directory.CreateDirectory(libFileName);
+//
+// byte[] copyBuffer = new byte[8192];
+//
+// foreach (var element in elements)
+// {
+//     nResFs.Seek(element.OffsetInFile, SeekOrigin.Begin);
+//     using var destFs = new FileStream(Path.Combine(libFileName, element.FileName), FileMode.CreateNew);
+//
+//     var totalCopiedBytes = 0;
+//     while (totalCopiedBytes < element.ItemLength)
+//     {
+//         var needReadBytes = Math.Min(element.ItemLength - totalCopiedBytes, copyBuffer.Length);
+//         var readBytes = nResFs.Read(copyBuffer, 0, needReadBytes);
+//         
+//         destFs.Write(copyBuffer, 0, readBytes);
+//
+//         totalCopiedBytes += readBytes;
+//     }
+// }