.gitignore

@@ -1,11 +1,13 @@
 # Visual Studio stuff
 .vs/
 SrcMod/.vs/
-*.sln
 
 # Compiled Files
 SrcMod/Compiled
 SrcMod/Shell/obj/
 
+SrcMod/Valve.NET/obj
+
 # Personal Stuff
+SrcMod/Shell/Modules/TestingModule.cs
 TODO.md

SrcMod/Shell/Game.cs

@@ -1,6 +1,6 @@
 namespace SrcMod.Shell;
 
-public class Game
+public class Game : IEquatable<Game>
 {
     public static readonly Game Portal2 = new()
     {
@@ -8,12 +8,48 @@ public class Game
         NameId = "portal2",
         SteamId = 620
     };
+    public static readonly Game Unknown = new()
+    {
+        Name = "Unknown Game",
+        NameId = "unknown",
+        SteamId = -1,
+        IsUnknown = true
+    };
 
-    public required string Name { get; init; }
-    public required string NameId { get; init; }
-    public required int SteamId { get; init; }
+    public string Name { get; private set; }
+    public string NameId { get; private set; }
+    public int SteamId { get; private set; }
 
-    private Game() { }
+    public bool IsUnknown { get; private set; }
+
+    private Game()
+    {
+        IsUnknown = false;
+        Name = string.Empty;
+        NameId = string.Empty;
+    }
+
+    public static Game FromSteamId(int id)
+    {
+        if (id == Portal2.SteamId) return Portal2;
+        else
+        {
+            Game game = (Game)Unknown.MemberwiseClone();
+            game.SteamId = id;
+            return game;
+        }
+    }
+
+    public override bool Equals(object? obj)
+    {
+        if (obj is Game game) return Equals(game);
+        return false;
+    }
+    public bool Equals(Game? other) => other is not null && SteamId == other.SteamId;
+    public override int GetHashCode() => base.GetHashCode();
 
     public override string ToString() => Name;
+
+    public static bool operator ==(Game a, Game b) => a.Equals(b);
+    public static bool operator !=(Game a, Game b) => !a.Equals(b);
 }

SrcMod/Shell/Miscellaneous/GlobalUsings.cs

@@ -1,12 +1,16 @@
-global using Nerd_STF.Mathematics;
+global using Microsoft.Win32;
+global using Nerd_STF.Mathematics;
 global using Newtonsoft.Json;
 global using SharpCompress.Archives.Rar;
 global using SharpCompress.Archives.SevenZip;
 global using SharpCompress.Readers;
 global using SrcMod.Shell.Extensions;
 global using SrcMod.Shell.Interop;
+global using SrcMod.Shell.Modules;
 global using SrcMod.Shell.Modules.ObjectModels;
 global using SrcMod.Shell.ObjectModels;
+global using SrcMod.Shell.ObjectModels.Source;
+global using SrcMod.Shell.ObjectModels.Steam;
 global using System;
 global using System.Collections;
 global using System.Collections.Generic;
@@ -20,4 +24,5 @@ global using System.Reflection;
 global using System.Runtime.InteropServices;
 global using System.Text;
 global using System.Threading;
+global using Valve.Vkv;
 global using static SrcMod.Shell.Tools;

SrcMod/Shell/Mod.cs

@@ -2,24 +2,183 @@
 
 public class Mod
 {
+    public Game BaseGame { get; set; }
+
+    public string? Developer { get; set; }
+    public string? DeveloperUrl { get; set; }
+    public Dictionary<SearchPathType, string> SearchPaths { get; set; }
+    public string? ManualUrl { get; set; }
+
+    public string? FgdDataPath { get; set; }
+    public string? IconPath { get; set; }
+    public string? InstancePath { get; set; }
+
+    public PlayerType PlayerMode { get; set; }
+
+    public CrosshairFlags CrosshairMenuFlags { get; set; }
+    public bool ShowDifficultyMenu { get; set; }
+    public bool ShowModelMenu { get; set; }
+    public bool ShowPortalMenu { get; set; }
+    public SupportFlags SupportingFlags { get; set; }
+
+    public bool HiResModels { get; set; }
+
+    public string[] HiddenMaps { get; set; }
+
     public string Name { get; set; }
+    public string? Motto { get; set; }
+    public TitleDisplay TitleDisplayMode { get; set; }
+
+    public bool BuildMapNodegraphs { get; set; }
+
+    public Dictionary<string, string>? MapbaseLaunchOptions { get; set; }
+    public string RootDirectory { get; set; }
 
     private Mod()
     {
+        BaseGame = Game.Unknown;
+        SearchPaths = new();
+        HiddenMaps = Array.Empty<string>();
         Name = string.Empty;
+        RootDirectory = string.Empty;
+    }
+
+    public static Mod FromInfo(string root, GameInfo info)
+    {
+        Mod curMod = new()
+        {
+            BaseGame = Game.FromSteamId(info.FileSystem.SteamAppID),
+            BuildMapNodegraphs = info.Nodegraph is not null && info.Nodegraph.Value,
+            CrosshairMenuFlags = CrosshairFlags.None,
+            Developer = info.Developer,
+            DeveloperUrl = info.Developer_URL,
+            FgdDataPath = info.GameData,
+            HiddenMaps = info.Hidden_Maps is null ? Array.Empty<string>() : info.Hidden_Maps.Keys.ToArray(),
+            HiResModels = info.NoHIModel is null || !info.NoHIModel.Value,
+            IconPath = info.Icon is null ? null : info.Icon.Trim().Replace('/', '\\') + ".tga",
+            InstancePath = info.InstancePath,
+            MapbaseLaunchOptions = info.CommandLine,
+            ManualUrl = info.Manual,
+            Motto = info.Title2,
+            Name = string.IsNullOrEmpty(info.Title) ? "Default Mod" : info.Title,
+            PlayerMode = info.Type is null ? PlayerType.Both : info.Type.Trim().ToLower() switch
+            {
+                "singleplayer_only" => PlayerType.Singleplayer,
+                "multiplayer_only" => PlayerType.Multiplayer,
+                _ => throw new ArgumentException($"Unknown type \"{info.Type}\"")
+            },
+            RootDirectory = root,
+            SearchPaths = new(),
+            ShowDifficultyMenu = info.NoDifficulty is null || !info.NoDifficulty.Value,
+            ShowModelMenu = info.NoModels is null || !info.NoModels.Value,
+            ShowPortalMenu = info.HasPortals is not null && info.HasPortals.Value,
+            SupportingFlags = SupportFlags.None,
+            TitleDisplayMode = info.GameLogo is null ? TitleDisplay.Title :
+                (info.GameLogo.Value ? TitleDisplay.Logo : TitleDisplay.Title)
+        };
+        if (curMod.PlayerMode == PlayerType.Multiplayer && info.NoDifficulty is null)
+            curMod.ShowDifficultyMenu = false;
+
+        if (info.NoCrosshair is null || !info.NoCrosshair.Value)
+            curMod.CrosshairMenuFlags |= CrosshairFlags.ShowMultiplayer;
+        if (info.AdvCrosshair is not null && info.AdvCrosshair.Value)
+            curMod.CrosshairMenuFlags |= CrosshairFlags.AdvancedMenu;
+
+        if (info.SupportsDX8 is not null && info.SupportsDX8.Value)
+            curMod.SupportingFlags |= SupportFlags.DirectX8;
+        if (info.SupportsVR is not null && info.SupportsVR.Value)
+            curMod.SupportingFlags |= SupportFlags.VirtualReality;
+        if (info.SupportsXBox360 is not null && info.SupportsXBox360.Value)
+            curMod.SupportingFlags |= SupportFlags.XBox360;
+
+        foreach (KeyValuePair<string, string> pair in info.FileSystem.SearchPaths)
+        {
+            SearchPathType type = SearchPathType.Unknown;
+            string[] parts = pair.Key.Trim().ToLower().Split('+');
+            foreach (string part in parts) type |= part switch
+            {
+                "game" => SearchPathType.Game,
+                "game_write" => SearchPathType.GameWrite,
+                "gamebin" => SearchPathType.GameBinaries,
+                "platform" => SearchPathType.Platform,
+                "mod" => SearchPathType.Mod,
+                "mod_write" => SearchPathType.ModWrite,
+                "default_write_path" => SearchPathType.DefaultWritePath,
+                "vpk" => SearchPathType.Vpk,
+                _ => SearchPathType.Unknown
+            };
+        }
+
+        return curMod;
     }
 
     public static Mod? ReadDirectory(string dir)
     {
-        if (!File.Exists(dir + "\\GameInfo.txt")) return null;
+        dir = dir.Trim().Replace('/', '\\');
+        string check = dir;
 
-        Mod mod = new()
+        while (!string.IsNullOrEmpty(check))
         {
-            Name = dir.Split("\\").Last()
-        };
+            string gameInfoPath = Path.Combine(check, "GameInfo.txt");
+            if (File.Exists(gameInfoPath))
+            {
+                // Root mod directory found, go from here.
 
-        return mod;
+                FileStream fs = new(gameInfoPath, FileMode.Open);
+                GameInfo? modInfo = SerializeVkv.Deserialize<GameInfo>(fs);
+                if (modInfo is null) continue;
+
+                return FromInfo(check, modInfo);
+            }
+
+            check = Path.GetDirectoryName(check) ?? string.Empty; // Go to parent folder.
+        }
+
+        return null;
     }
 
     public override string ToString() => Name;
+
+    [Flags]
+    public enum CrosshairFlags
+    {
+        None = 0,
+        ShowMultiplayer = 1,
+        AdvancedMenu = 2
+    }
+
+    [Flags]
+    public enum SupportFlags
+    {
+        None,
+        DirectX8 = 1,
+        VirtualReality = 2,
+        XBox360 = 4
+    }
+
+    [Flags]
+    public enum SearchPathType
+    {
+        Unknown = 0,
+        Game = 1,
+        GameWrite = 2,
+        GameBinaries = 4,
+        Platform = 8,
+        Mod = 16,
+        ModWrite = 32,
+        DefaultWritePath = 64,
+        Vpk = 128
+    }
+
+    public enum PlayerType
+    {
+        Singleplayer = 1,
+        Multiplayer = 2,
+        Both = Singleplayer | Multiplayer
+    }
+    public enum TitleDisplay
+    {
+        Title,
+        Logo
+    }
 }

SrcMod/Shell/Modules/ObjectModels/TypeParsers.cs

@@ -2,35 +2,73 @@
 
 public static class TypeParsers
 {
+    public static bool CanParse(object? obj) => obj is not null && obj is bool or sbyte or byte or short or ushort
+        or int or uint or long or ulong or Int128 or UInt128 or nint or nuint or Half or float or double or decimal
+        or char or DateOnly or DateTime or DateTimeOffset or Guid or TimeOnly or TimeSpan;
     public static object ParseAll(string msg)
     {
-        if (TryParse(msg, out sbyte int8)) return int8;
-        if (TryParse(msg, out byte uInt8)) return uInt8;
-        if (TryParse(msg, out short int16)) return int16;
-        if (TryParse(msg, out ushort uInt16)) return uInt16;
-        if (TryParse(msg, out int int32)) return int32;
-        if (TryParse(msg, out uint uInt32)) return uInt32;
-        if (TryParse(msg, out long int64)) return int64;
-        if (TryParse(msg, out ulong uInt64)) return uInt64;
-        if (TryParse(msg, out Int128 int128)) return int128;
-        if (TryParse(msg, out UInt128 uInt128)) return uInt128;
-        if (TryParse(msg, out nint intPtr)) return intPtr;
-        if (TryParse(msg, out nuint uIntPtr)) return uIntPtr;
-        if (TryParse(msg, out Half float16)) return float16;
-        if (TryParse(msg, out float float32)) return float32;
-        if (TryParse(msg, out double float64)) return float64;
-        if (TryParse(msg, out decimal float128)) return float128;
-        if (TryParse(msg, out char resChar)) return resChar;
-        if (TryParse(msg, out DateOnly dateOnly)) return dateOnly;
-        if (TryParse(msg, out DateTime dateTime)) return dateTime;
-        if (TryParse(msg, out DateTimeOffset dateTimeOffset)) return dateTimeOffset;
-        if (TryParse(msg, out Guid guid)) return guid;
-        if (TryParse(msg, out TimeOnly timeOnly)) return timeOnly;
-        if (TryParse(msg, out TimeSpan timeSpan)) return timeSpan;
-
-        return msg;
+        if (TryParseBool(msg, out bool resBool)) return resBool;
+        else if (TryParse(msg, out sbyte int8)) return int8;
+        else if (TryParse(msg, out byte uInt8)) return uInt8;
+        else if (TryParse(msg, out short int16)) return int16;
+        else if (TryParse(msg, out ushort uInt16)) return uInt16;
+        else if (TryParse(msg, out int int32)) return int32;
+        else if (TryParse(msg, out uint uInt32)) return uInt32;
+        else if (TryParse(msg, out long int64)) return int64;
+        else if (TryParse(msg, out ulong uInt64)) return uInt64;
+        else if (TryParse(msg, out Int128 int128)) return int128;
+        else if (TryParse(msg, out UInt128 uInt128)) return uInt128;
+        else if (TryParse(msg, out nint intPtr)) return intPtr;
+        else if (TryParse(msg, out nuint uIntPtr)) return uIntPtr;
+        else if (TryParse(msg, out Half float16)) return float16;
+        else if (TryParse(msg, out float float32)) return float32;
+        else if (TryParse(msg, out double float64)) return float64;
+        else if (TryParse(msg, out decimal float128)) return float128;
+        else if (TryParse(msg, out char resChar)) return resChar;
+        else if (TryParse(msg, out DateOnly dateOnly)) return dateOnly;
+        else if (TryParse(msg, out DateTime dateTime)) return dateTime;
+        else if (TryParse(msg, out DateTimeOffset dateTimeOffset)) return dateTimeOffset;
+        else if (TryParse(msg, out Guid guid)) return guid;
+        else if (TryParse(msg, out TimeOnly timeOnly)) return timeOnly;
+        else if (TryParse(msg, out TimeSpan timeSpan)) return timeSpan;
+        else return msg;
     }
 
+    public static bool TryParseBool(string msg, out bool result)
+    {
+        string trimmed = msg.Trim().ToLower();
+
+        string[] trues = new string[]
+        {
+            "t",
+            "true",
+            "1",
+            "y",
+            "yes"
+        },
+            falses = new string[]
+        {
+            "f",
+            "false",
+            "0",
+            "n",
+            "no"
+        };
+
+        foreach (string t in trues) if (trimmed == t)
+            {
+                result = true;
+                return true;
+            }
+        foreach (string f in falses) if (trimmed == f)
+            {
+                result = false;
+                return true;
+            }
+
+        result = false;
+        return false;
+    }
     public static bool TryParse<T>(string msg, out T? result) where T : IParsable<T>
         => T.TryParse(msg, null, out result);
 }

SrcMod/Shell/ObjectModels/Config.cs

@@ -4,6 +4,9 @@ public class Config
 {
     public const string FilePath = "config.json";
 
+    public static bool HasDisplayableError => false;
+    public static bool HasDisplayableWarning => p_printedLastSteamWarning;
+
     public static Config Defaults => new();
 
     private static readonly FieldInfo[] p_configSharedFields;
@@ -22,8 +25,14 @@ public class Config
     private static Config p_applied;
     private static Changes? p_changes;
 
+    private static bool p_printedLastSteamWarning;
+
+    // These variables should only exist in the Config class so they aren't marked as shared.
+    private readonly string p_steamLocation;
+
     static Config()
     {
+        // Generate shared fields between the config class and its changes equivalent.
         p_applied = Defaults;
 
         FieldInfo[] configFields = (from field in typeof(Config).GetFields()
@@ -62,11 +71,67 @@ public class Config
 
     public string[] GameDirectories;
     public AskMode RunUnsafeCommands;
+    public bool UseLocalModDirectories;
 
     internal Config()
     {
+        // Locate some steam stuff.
+        const string steamLocationKey = @"Software\Valve\Steam";
+        RegistryKey? key = Registry.CurrentUser.OpenSubKey(steamLocationKey);
+        if (key is null)
+        {
+            Write("[FATAL] Cannot locate Steam installation. Do you have Steam installed?",
+                ConsoleColor.DarkRed);
+            Thread.Sleep(1000);
+            BaseModule.QuitShell(-1);
+
+            // This should never run, and is just here to supress
+            // a couple compiler warnings.
+            p_steamLocation = string.Empty;
             GameDirectories = Array.Empty<string>();
             RunUnsafeCommands = AskMode.Ask;
+            return;
+        }
+        p_steamLocation = (string)key.GetValue("SteamPath")!;
+
+        // Assign config variables.
+
+        string gameDirDataPath = Path.Combine(p_steamLocation, @"steamapps\libraryfolders.vdf");
+
+        FileStream gameDirData = new(gameDirDataPath, FileMode.Open);
+        try
+        {
+            LibraryFolder[]? folders = SerializeVkv.Deserialize<LibraryFolder[]>(gameDirData);
+            if (folders is null)
+            {
+                if (!p_printedLastSteamWarning)
+                    Write("[WARNING] Error parsing Steam game directories.", ConsoleColor.DarkYellow);
+                GameDirectories = Array.Empty<string>();
+                p_printedLastSteamWarning = true;
+            }
+            else
+            {
+                GameDirectories = new string[folders.Length];
+                for (int i = 0; i < folders.Length; i++) GameDirectories[i] = folders[i].path;
+                p_printedLastSteamWarning = false;
+            }
+        }
+        catch (Exception ex)
+        {
+            if (!p_printedLastSteamWarning)
+            {
+#if RELEASE
+                Write("[WARNING] Error parsing Steam game directories.", ConsoleColor.DarkYellow);
+#else
+                Write(ex, ConsoleColor.DarkYellow);
+#endif
+            }
+            GameDirectories = Array.Empty<string>();
+            p_printedLastSteamWarning = true;
+        }
+
+        RunUnsafeCommands = AskMode.Ask;
+        UseLocalModDirectories = true;
     }
 
     public Config ApplyChanges(Changes changes)
@@ -132,7 +197,7 @@ public class Config
         }
         StreamReader reader = new(fullPath);
         JsonTextReader jsonReader = new(reader);
-        p_changes = Serializer.Deserialize<Changes?>(jsonReader);
+        p_changes = Tools.SerializerJson.Deserialize<Changes?>(jsonReader);
         jsonReader.Close();
         reader.Close();
 
@@ -153,7 +218,7 @@ public class Config
         {
             Indentation = 4
         };
-        Serializer.Serialize(jsonWriter, p_changes);
+        Tools.SerializerJson.Serialize(jsonWriter, p_changes);
         jsonWriter.Close();
         writer.Close();
     }
@@ -167,6 +232,7 @@ public class Config
     {
         public string[]? GameDirectories;
         public AskMode? RunUnsafeCommands;
+        public bool? UseLocalModDirectories;
 
         public bool Any() => typeof(Changes).GetFields().Any(x => x.GetValue(this) is not null);
     }

SrcMod/Shell/ObjectModels/Source/GameInfo.cs

@@ -0,0 +1,59 @@
+namespace SrcMod.Shell.ObjectModels.Source;
+
+// Referencing https://developer.valvesoftware.com/wiki/Gameinfo.txt.
+public class GameInfo
+{
+    // Name
+    public string Game;
+    public string Title;
+    public string? Title2;
+    public bool? GameLogo;
+
+    // Options
+    public string? Type;
+    public bool? NoDifficulty;
+    public bool? HasPortals;
+    public bool? NoCrosshair;
+    public bool? AdvCrosshair;
+    public bool? NoModels;
+    public bool? NoHIModel;
+
+    public Dictionary<string, int>? Hidden_Maps;
+    public Dictionary<string, string>? CommandLine;
+
+    // Steam games list
+    public string? Developer;
+    public string? Developer_URL;
+    public string? Manual;
+    public string? Icon;
+
+    // Engine and tools
+    public bool? Nodegraph;
+    public string? GameData;
+    public string? InstancePath;
+    public bool? SupportsDX8;
+    public bool? SupportsVR;
+    public bool? SupportsXBox360;
+    public FileSystemData FileSystem;
+
+    public GameInfo()
+    {
+        Game = string.Empty;
+        Title = string.Empty;
+        FileSystem = new();
+    }
+
+    public class FileSystemData
+    {
+        public int SteamAppID;
+        public int? AdditionalContentId;
+        public int? ToolsAppId;
+
+        public Dictionary<string, string> SearchPaths;
+
+        public FileSystemData()
+        {
+            SearchPaths = new();
+        }
+    }
+}

SrcMod/Shell/ObjectModels/Steam/LibraryFolder.cs

@@ -0,0 +1,13 @@
+namespace SrcMod.Shell.ObjectModels.Steam;
+
+public class LibraryFolder
+{
+    public string path;
+    public Dictionary<int, ulong> apps;
+
+    public LibraryFolder()
+    {
+        path = string.Empty;
+        apps = new();
+    }
+}

SrcMod/Shell/Shell.cs

@@ -4,7 +4,13 @@ public class Shell
 {
     public const string Author = "That_One_Nerd";
     public const string Name = "SrcMod";
-    public const string Version = "Alpha 0.4.0";
+    public const string Version = "Beta 0.5.0";
+
+    public bool HasAnyDisplayableError => HasDisplayableError || Config.HasDisplayableError;
+    public bool HasAnyDisplayableWarning => HasDisplayableWarning || Config.HasDisplayableWarning;
+
+    public bool HasDisplayableError => p_printedLastReloadError;
+    public bool HasDisplayableWarning => false;
 
     public readonly string? ShellDirectory;
 
@@ -16,10 +22,12 @@ public class Shell
     public List<HistoryItem> History;
     public string WorkingDirectory;
 
-    private bool lastCancel;
-    private bool printedCancel;
+    private bool p_lastCancel;
+    private bool p_printedCancel;
 
-    private BackgroundWorker? activeCommand;
+    private bool p_printedLastReloadError;
+
+    private BackgroundWorker? p_activeCommand;
 
     public Shell()
     {
@@ -88,8 +96,8 @@ public class Shell
         Write(" by ", ConsoleColor.White, false);
         Write($"{Author}", ConsoleColor.DarkYellow);
 
-        lastCancel = false;
-        activeCommand = null;
+        p_lastCancel = false;
+        p_activeCommand = null;
         Console.CancelKeyPress += HandleCancel;
 
         ActiveGame = null;
@@ -139,9 +147,21 @@ public class Shell
 
     public string ReadLine()
     {
-        Write($"\n{WorkingDirectory}", ConsoleColor.DarkGreen, false);
-        if (ActiveGame is not null) Write($" {ActiveGame}", ConsoleColor.DarkYellow, false);
+        Write("\n", newLine: false);
+        if (HasAnyDisplayableError) Write($"(Error) ", ConsoleColor.DarkRed, false);
+        else if (HasAnyDisplayableWarning) Write($"(Warning) ", ConsoleColor.DarkYellow, false);
+
         if (ActiveMod is not null) Write($"{ActiveMod} ", ConsoleColor.Magenta, false);
+        
+        if (ActiveMod is not null && Config.LoadedConfig.UseLocalModDirectories)
+        {
+            string directory = Path.GetRelativePath(ActiveMod.RootDirectory, WorkingDirectory);
+            if (directory == ".") directory = string.Empty;
+            Write($"~\\{directory}", ConsoleColor.DarkGreen, false);
+        }
+        else Write($"{WorkingDirectory}", ConsoleColor.DarkGreen, false);
+
+        if (ActiveGame is not null) Write($" ({ActiveGame})", ConsoleColor.Blue, false);
         Write(null);
 
         Write($" {Name}", ConsoleColor.DarkCyan, false);
@@ -149,7 +169,7 @@ public class Shell
 
         bool printed = false;
 
-        if (lastCancel && !printedCancel)
+        if (p_lastCancel && !p_printedCancel)
         {
             // Print the warning. A little bit of mess because execution must
             // continue without funny printing errors but it's alright I guess.
@@ -160,7 +180,7 @@ public class Shell
             Write("Press ^C again to exit the shell.", ConsoleColor.Red);
             PlayWarningSound();
 
-            printedCancel = true;
+            p_printedCancel = true;
             Console.CursorTop += 2;
 
             Console.CursorLeft = originalLeft;
@@ -175,8 +195,8 @@ public class Shell
 
         if (!printed)
         {
-            lastCancel = false;
-            printedCancel = false;
+            p_lastCancel = false;
+            p_printedCancel = false;
         }
 
         return message;
@@ -262,18 +282,18 @@ public class Shell
                     }
                 }
 
-                activeCommand = new();
-                activeCommand.DoWork += runCommand;
-                activeCommand.RunWorkerAsync();
+                p_activeCommand = new();
+                p_activeCommand.DoWork += runCommand;
+                p_activeCommand.RunWorkerAsync();
 
-                activeCommand.WorkerSupportsCancellation = command.CanBeCancelled;
+                p_activeCommand.WorkerSupportsCancellation = command.CanBeCancelled;
 
-                while (activeCommand is not null && activeCommand.IsBusy) Thread.Yield();
+                while (p_activeCommand is not null && p_activeCommand.IsBusy) Thread.Yield();
 
-                if (activeCommand is not null)
+                if (p_activeCommand is not null)
                 {
-                    activeCommand.Dispose();
-                    activeCommand = null;
+                    p_activeCommand.Dispose();
+                    p_activeCommand = null;
                 }
 
                 if (ShellDirectory is null) Write("[WARNING] Could not save config to shell location. Any changes will be ignored.");
@@ -299,25 +319,46 @@ public class Shell
     }
 
     public void ReloadDirectoryInfo()
+    {
+        try
         {
             ActiveMod = Mod.ReadDirectory(WorkingDirectory);
+            ActiveGame = ActiveMod?.BaseGame;
 
             // Update title.
             string title = "SrcMod";
             if (ActiveMod is not null) title += $" - {ActiveMod.Name}";
             Console.Title = title;
+
+            p_printedLastReloadError = false;
+        }
+        catch (Exception ex)
+        {
+            if (!p_printedLastReloadError)
+            {
+#if RELEASE
+                Write("[ERROR] Error reloading directory information. Some data may not update.",
+                    ConsoleColor.Red);
+#else
+                Write(ex, ConsoleColor.Red);
+#endif
+            }
+
+            p_printedLastReloadError = true;
+            Console.Title = "SrcMod (Error)";
+        }
     }
 
     private void HandleCancel(object? sender, ConsoleCancelEventArgs args)
     {
-        if (activeCommand is not null && activeCommand.IsBusy)
+        if (p_activeCommand is not null && p_activeCommand.IsBusy)
         {
-            if (activeCommand.WorkerSupportsCancellation)
+            if (p_activeCommand.WorkerSupportsCancellation)
             {
                 // Kill the active command.
-                activeCommand.CancelAsync();
-                activeCommand.Dispose();
-                activeCommand = null;
+                p_activeCommand.CancelAsync();
+                p_activeCommand.Dispose();
+                p_activeCommand = null;
             }
             else
             {
@@ -326,18 +367,18 @@ public class Shell
                 PlayErrorSound();
             }
 
-            lastCancel = false;
-            printedCancel = false;
+            p_lastCancel = false;
+            p_printedCancel = false;
             args.Cancel = true;
             return;
         }
 
         // Due to some funny multithreading issues, we want to make the warning label
         // single-threaded on the shell.
-        if (!lastCancel)
+        if (!p_lastCancel)
         {
             // Enable the warning. The "ReadLine" method will do the rest.
-            lastCancel = true;
+            p_lastCancel = true;
             args.Cancel = true; // "Cancel" referring to the cancellation of the cancel operation.
             return;
         }

SrcMod/Shell/Shell.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net7.0-windows</TargetFramework>
     <ImplicitUsings>disable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <AssemblyName>srcmod</AssemblyName>
@@ -16,16 +16,6 @@
 	<NoWin32Manifest>true</NoWin32Manifest>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
-    <DebugType>embedded</DebugType>
-    <WarningLevel>9999</WarningLevel>
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
-    <DebugType>embedded</DebugType>
-    <WarningLevel>9999</WarningLevel>
-  </PropertyGroup>
-
   <ItemGroup>
     <Content Include="Logo.ico" />
   </ItemGroup>
@@ -36,4 +26,8 @@
     <PackageReference Include="SharpCompress" Version="0.33.0" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\Valve.NET\Valve.NET.csproj" />
+  </ItemGroup>
+
 </Project>

SrcMod/Shell/Tools.cs

@@ -2,15 +2,27 @@
 
 public static class Tools
 {
-    public static JsonSerializer Serializer { get; private set; }
+    public static JsonSerializer SerializerJson { get; private set; }
+    public static VkvSerializer SerializeVkv { get; private set; }
 
     static Tools()
     {
-        Serializer = JsonSerializer.Create(new()
+        SerializerJson = JsonSerializer.Create(new()
         {
             Formatting = Formatting.Indented,
             NullValueHandling = NullValueHandling.Ignore
         });
+
+        SerializeVkv = new VkvSerializer(new()
+        {
+            closeWhenFinished = true,
+            indentSize = 4,
+            resetStreamPosition = false,
+            serializeProperties = true,
+            spacing = SpacingMode.DoubleTab,
+            useEscapeCodes = true,
+            useQuotes = true
+        });
     }
 
     public static void DisplayWithPages(IEnumerable<string> lines, ConsoleColor? color = null)

SrcMod/SrcMod.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.4.33213.308
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Shell", "Shell\Shell.csproj", "{6EC87235-F2A5-4313-A6DE-A4EE7CB7B341}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Valve.NET", "Valve.NET\Valve.NET.csproj", "{8FC96202-2F7E-4FBE-B08E-FCC38AA62D96}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{6EC87235-F2A5-4313-A6DE-A4EE7CB7B341}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6EC87235-F2A5-4313-A6DE-A4EE7CB7B341}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6EC87235-F2A5-4313-A6DE-A4EE7CB7B341}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6EC87235-F2A5-4313-A6DE-A4EE7CB7B341}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8FC96202-2F7E-4FBE-B08E-FCC38AA62D96}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8FC96202-2F7E-4FBE-B08E-FCC38AA62D96}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8FC96202-2F7E-4FBE-B08E-FCC38AA62D96}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8FC96202-2F7E-4FBE-B08E-FCC38AA62D96}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {4E25AC28-DD70-4BB6-9083-07D6371DECCF}
+	EndGlobalSection
+EndGlobal

SrcMod/Valve.NET/Miscellaneous/GlobalUsings.cs

@@ -0,0 +1,17 @@
+global using System;
+global using System.Collections;
+global using System.Collections.Generic;
+global using System.ComponentModel;
+global using System.Diagnostics;
+global using System.Formats.Tar;
+global using System.IO;
+global using System.IO.Compression;
+global using System.Linq;
+global using System.Reflection;
+global using System.Runtime.InteropServices;
+global using System.Text;
+global using System.Threading;
+global using Valve;
+global using Valve.Miscellaneous;
+global using Valve.Vkv;
+global using Valve.Vkv.ObjectModels;

SrcMod/Valve.NET/Miscellaneous/TypeParsers.cs

@@ -0,0 +1,74 @@
+namespace Valve.Miscellaneous;
+
+public static class TypeParsers
+{
+    public static bool CanParse(object? obj) => obj is not null && obj is bool or sbyte or byte or short or ushort
+        or int or uint or long or ulong or Int128 or UInt128 or nint or nuint or Half or float or double or decimal
+        or char or DateOnly or DateTime or DateTimeOffset or Guid or TimeOnly or TimeSpan;
+    public static object ParseAll(string msg)
+    {
+        if (TryParseBool(msg, out bool resBool)) return resBool;
+        else if (TryParse(msg, out sbyte int8)) return int8;
+        else if (TryParse(msg, out byte uInt8)) return uInt8;
+        else if (TryParse(msg, out short int16)) return int16;
+        else if (TryParse(msg, out ushort uInt16)) return uInt16;
+        else if (TryParse(msg, out int int32)) return int32;
+        else if (TryParse(msg, out uint uInt32)) return uInt32;
+        else if (TryParse(msg, out long int64)) return int64;
+        else if (TryParse(msg, out ulong uInt64)) return uInt64;
+        else if (TryParse(msg, out Int128 int128)) return int128;
+        else if (TryParse(msg, out UInt128 uInt128)) return uInt128;
+        else if (TryParse(msg, out nint intPtr)) return intPtr;
+        else if (TryParse(msg, out nuint uIntPtr)) return uIntPtr;
+        else if (TryParse(msg, out Half float16)) return float16;
+        else if (TryParse(msg, out float float32)) return float32;
+        else if (TryParse(msg, out double float64)) return float64;
+        else if (TryParse(msg, out decimal float128)) return float128;
+        else if (TryParse(msg, out char resChar)) return resChar;
+        else if (TryParse(msg, out DateOnly dateOnly)) return dateOnly;
+        else if (TryParse(msg, out DateTime dateTime)) return dateTime;
+        else if (TryParse(msg, out DateTimeOffset dateTimeOffset)) return dateTimeOffset;
+        else if (TryParse(msg, out Guid guid)) return guid;
+        else if (TryParse(msg, out TimeOnly timeOnly)) return timeOnly;
+        else if (TryParse(msg, out TimeSpan timeSpan)) return timeSpan;
+        else return msg;
+    }
+
+    public static bool TryParseBool(string msg, out bool result)
+    {
+        string trimmed = msg.Trim().ToLower();
+
+        string[] trues = new string[]
+        {
+            "t",
+            "true",
+            "1",
+            "y",
+            "yes"
+        },
+            falses = new string[]
+        {
+            "f",
+            "false",
+            "0",
+            "n",
+            "no"
+        };
+
+        foreach (string t in trues) if (trimmed == t)
+            {
+                result = true;
+                return true;
+            }
+        foreach (string f in falses) if (trimmed == f)
+            {
+                result = false;
+                return true;
+            }
+
+        result = false;
+        return false;
+    }
+    public static bool TryParse<T>(string msg, out T? result) where T : IParsable<T>
+        => T.TryParse(msg, null, out result);
+}

SrcMod/Valve.NET/Valve.NET.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Library</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>disable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+	<AssemblyName>valve.net</AssemblyName>
+	<RootNamespace>Valve</RootNamespace>
+	<OutputPath>../Compiled/Valve.NET</OutputPath>
+	<Title>Valve.NET</Title>
+	<Authors>That_One_Nerd</Authors>
+	<AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+	<NoWin32Manifest>true</NoWin32Manifest>
+  </PropertyGroup>
+
+</Project>

SrcMod/Valve.NET/Vkv/ObjectModels/IVkvConvertible.cs

@@ -0,0 +1,6 @@
+namespace Valve.Vkv.ObjectModels;
+
+public interface IVkvConvertible
+{
+    public VkvNode ToNodeTree();
+}

SrcMod/Valve.NET/Vkv/ObjectModels/VkvIgnoreAttribute.cs

@@ -0,0 +1,4 @@
+namespace Valve.Vkv.ObjectModels;
+
+[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = false, Inherited = true)]
+public class VkvIgnoreAttribute : Attribute { }

SrcMod/Valve.NET/Vkv/ObjectModels/VkvKeyNameAttribute.cs

@@ -0,0 +1,9 @@
+namespace Valve.Vkv.ObjectModels;
+
+[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = false, Inherited = false)]
+public class VkvKeyNameAttribute : Attribute
+{
+    public readonly string name;
+
+    public VkvKeyNameAttribute(string name) => this.name = name;
+}

SrcMod/Valve.NET/Vkv/ObjectModels/VkvSerializationException.cs

@@ -0,0 +1,8 @@
+namespace Valve.Vkv.ObjectModels;
+
+public class VkvSerializationException : Exception
+{
+    public VkvSerializationException() : base() { }
+    public VkvSerializationException(string message) : base(message) { }
+    public VkvSerializationException(string message, Exception inner) : base(message, inner) { }
+}

SrcMod/Valve.NET/Vkv/SpacingMode.cs

@@ -0,0 +1,8 @@
+namespace Valve.Vkv;
+
+public enum SpacingMode
+{
+    SingleSpace = 0,
+    IndentSizeSpacing,
+    DoubleTab,
+}

SrcMod/Valve.NET/Vkv/VkvConvert.cs

@@ -0,0 +1,449 @@
+namespace Valve.Vkv;
+
+public static class VkvConvert
+{
+    private static readonly Dictionary<string, string> p_escapeCodes = new()
+    {
+        { "\\", @"\\" }, // This must be first.
+        { "\'", @"\'" },
+        { "\"", @"\""" },
+        { "\0", @"\0" },
+        { "\a", @"\a" },
+        { "\b", @"\b" },
+        { "\f", @"\f" },
+        { "\n", @"\n" },
+        { "\r", @"\r" },
+        { "\t", @"\t" },
+        { "\v", @"\v" }
+    };
+
+    #region DeserializeNode
+    public static VkvNode? DeserializeNode(StreamReader reader) =>
+        DeserializeNode(reader, VkvOptions.Default);
+    public static VkvNode? DeserializeNode(StreamReader reader, VkvOptions options)
+    {
+        try
+        {
+            return DeserializeNode(reader, options, out _, null);
+        }
+        catch
+        {
+            if (!options.noExceptions) throw;
+            return null;
+        }
+    }
+
+    private static VkvNode? DeserializeNode(StreamReader reader, VkvOptions options, out string name,
+        string? first)
+    {
+        string? header = first ?? (reader.ReadLine()?.Trim());
+        if (header is null || string.IsNullOrEmpty(header))
+        {
+            name = string.Empty;
+            return null;
+        }
+
+        string[] parts = SplitContent(header, options);
+        if (parts.Length > 2) throw new VkvSerializationException("Too many values in node.");
+
+        VkvNode node;
+
+        name = DeserializeString(parts[0], options);
+        if (parts.Length == 2)
+        {
+            string value = DeserializeString(parts[1], options);
+            node = new VkvSingleNode(value);
+        }
+        else
+        {
+            string? next = reader.ReadLine()?.Trim();
+            if (next is null) throw new VkvSerializationException("Expected starting '{', found end-of-file.");
+            else if (next != "{") throw new VkvSerializationException($"Expected starting '{{', found \"{next}\".");
+            VkvTreeNode tree = new();
+            string? current;
+            while ((current = reader.ReadLine()?.Trim()) is not null)
+            {
+                if (current == "}") break;
+                VkvNode? output = DeserializeNode(reader, options, out string subName, current);
+                tree[subName] = output;
+            }
+            if (current is null) throw new VkvSerializationException("Reached end-of-file while deserializing group.");
+            node = tree;
+        }
+
+        return node;
+    }
+
+    private static string DeserializeString(string content, VkvOptions options)
+    {
+        if (options.useQuotes)
+        {
+            if (!content.StartsWith('\"') || !content.EndsWith('\"'))
+                throw new VkvSerializationException("No quotes found around content.");
+            content = content[1..^1];
+        }
+        if (options.useEscapeCodes)
+        {
+            foreach (KeyValuePair<string, string> escapeCode in p_escapeCodes.Reverse())
+                content = content.Replace(escapeCode.Value, escapeCode.Key);
+        }
+        return content;
+    }
+
+    private static string[] SplitContent(string content, VkvOptions options)
+    {
+        content = content.Replace('\t', ' ');
+        if (options.useQuotes)
+        {
+            List<string> values = new();
+            string current = string.Empty;
+            bool inQuote = false;
+            for (int i = 0; i < content.Length; i++)
+            {
+                char c = content[i];
+                if (c == '\"' && !(i > 0 && content[i - 1] == '\\')) inQuote = !inQuote;
+
+                if (c == ' ' && !inQuote)
+                {
+                    if (!string.IsNullOrEmpty(current)) values.Add(current);
+                    current = string.Empty;
+                }
+                else current += c;
+            }
+            if (inQuote) throw new VkvSerializationException("Reached end-of-line while inside quotations.");
+            if (!string.IsNullOrEmpty(current)) values.Add(current);
+            return values.ToArray();
+        }
+        else return content.Split(' ', StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries);
+    }
+    #endregion
+
+    #region FromNodeTree
+    public static T? FromNodeTree<T>(VkvNode? node, VkvOptions options) => (T?)FromNodeTree(typeof(T), node, options);
+    public static object? FromNodeTree(Type outputType, VkvNode? node, VkvOptions options)
+    {
+        try
+        {
+            if (node is null) return null;
+
+            if (node is VkvSingleNode single) return FromSingleNode(outputType, single);
+            else if (node is VkvTreeNode tree) return FromTreeNode(outputType, tree, options);
+            else throw new VkvSerializationException("Unknown VKV node type.");
+        }
+        catch
+        {
+            if (!options.noExceptions) throw;
+            return null;
+        }
+    }
+
+    private static object? FromSingleNode(Type outputType, VkvSingleNode node)
+    {
+        object? value = node.value;
+        if (value is null) return null;
+        else if (value is string str)
+        {
+            value = TypeParsers.ParseAll(str);
+            if (value is string still && outputType.IsEnum)
+            {
+                if (Enum.TryParse(outputType, still, true, out object? res) && res is not null)
+                    value = res;
+            }
+        }
+        return Convert.ChangeType(value, outputType);
+    }
+    
+    private static object? FromTreeNode(Type outputType, VkvTreeNode node, VkvOptions options)
+    {
+        if (outputType.IsArray)
+            return FromTreeNodeArray(outputType, node, options);
+
+        else if (outputType.GetInterface("IList") is not null)
+            return FromTreeNodeList(outputType, node, options);
+
+        else if (outputType.GetInterface("IDictionary") is not null)
+            return FromTreeNodeDictionary(outputType, node, options);
+
+        object? instance = Activator.CreateInstance(outputType);
+        if (instance is null) return null;
+
+        IEnumerable<FieldInfo> validFields = from field in outputType.GetFields()
+                                             let isPublic = field.IsPublic
+                                             let isStatic = field.IsStatic
+                                             let isIgnored = field.CustomAttributes.Any(x =>
+                                                 x.AttributeType == typeof(VkvIgnoreAttribute))
+                                             let isConst = field.IsLiteral
+                                             where isPublic && !isStatic && !isIgnored && !isConst
+                                             select field;
+
+        IEnumerable<PropertyInfo> validProperties;
+        if (options.serializeProperties)
+        {
+            validProperties = from prop in outputType.GetProperties()
+                              let canSet = prop.SetMethod is not null
+                              let isPublic = canSet && prop.SetMethod!.IsPublic
+                              let isStatic = canSet && prop.SetMethod!.IsStatic
+                              let isIgnored = prop.CustomAttributes.Any(x =>
+                                  x.AttributeType == typeof(VkvIgnoreAttribute))
+                              where canSet && isPublic && !isStatic && !isIgnored
+                              select prop;
+        }
+        else validProperties = Array.Empty<PropertyInfo>();
+
+        foreach (FieldInfo field in validFields)
+        {
+            VkvKeyNameAttribute? namingAttribute = field.GetCustomAttribute<VkvKeyNameAttribute>();
+
+            VkvNode? subNode = node[namingAttribute?.name ?? field.Name];
+            if (subNode is null) continue;
+
+            object? result = FromNodeTree(field.FieldType, subNode, options);
+            if (result is null) continue;
+            field.SetValue(instance, result);
+        }
+        foreach (PropertyInfo prop in validProperties)
+        {
+            VkvKeyNameAttribute? namingAttribute = prop.GetCustomAttribute<VkvKeyNameAttribute>();
+
+            VkvNode? subNode = node[namingAttribute?.name ?? prop.Name];
+            if (subNode is null) continue;
+
+            object? result = FromNodeTree(prop.PropertyType, subNode, options);
+            if (result is null) continue;
+            prop.SetValue(instance, result);
+        }
+
+        return instance;
+    }
+
+    private static object? FromTreeNodeArray(Type outputType, VkvTreeNode node, VkvOptions options)
+    {
+        Type elementType = outputType.GetElementType()!;
+        Array array = Array.CreateInstance(elementType, node.SubNodeCount);
+
+        int index = 0;
+        foreach (KeyValuePair<string, VkvNode?> subNode in node)
+        {
+            string indexStr = index.ToString();
+            if (subNode.Key != indexStr) throw new VkvSerializationException($"Cannot convert node tree to array.");
+            array.SetValue(FromNodeTree(elementType, subNode.Value, options), index);
+            index++;
+        }
+        return array;
+    }
+
+    private static object? FromTreeNodeList(Type outputType, VkvTreeNode node, VkvOptions options)
+    {
+        IList? instance = (IList?)Activator.CreateInstance(outputType);
+        if (instance is null) return null;
+
+        // There is no guarentee that the first type argument corresponds to the element type,
+        // but as far as I know there isn't a better way.
+        Type elementType = outputType.IsGenericType ? outputType.GenericTypeArguments[0] : typeof(object);
+
+        int index = 0;
+        foreach (KeyValuePair<string, VkvNode?> subNode in node)
+        {
+            string indexStr = index.ToString();
+            if (subNode.Key != indexStr) throw new VkvSerializationException($"Cannot convert node tree to array.");
+            instance.Add(FromNodeTree(elementType, subNode.Value, options));
+            index++;
+        }
+        return instance;
+    }
+
+    private static object? FromTreeNodeDictionary(Type outputType, VkvTreeNode node, VkvOptions options)
+    {
+        IDictionary? instance = (IDictionary?)Activator.CreateInstance(outputType);
+        if (instance is null) return null;
+
+        // There is no guarentee that the first and second type arguments represent the
+        // key and value types, but as far as I know there isn't a better way.
+        bool canUseGenerics = outputType.GenericTypeArguments.Length >= 2;
+        Type keyType = canUseGenerics ? outputType.GenericTypeArguments[0] : typeof(object),
+             valueType = canUseGenerics ? outputType.GenericTypeArguments[1] : typeof(object);
+
+        foreach (KeyValuePair<string, VkvNode?> subNode in node)
+        {
+            object key = TypeParsers.ParseAll(subNode.Key);
+            if (key is string still && keyType.IsEnum)
+            {
+                if (Enum.TryParse(keyType, still, true, out object? res) && res is not null)
+                    key = res;
+            }
+            key = Convert.ChangeType(key, keyType);
+
+            object? value = FromNodeTree(valueType, subNode.Value, options);
+
+            instance.Add(key, value);
+        }
+        return instance;
+    }
+    #endregion
+
+    #region SerializeNode
+    public static void SerializeNode(StreamWriter writer, VkvNode? node, string name,
+        VkvOptions options)
+    {
+        try
+        {
+            SerializeNode(writer, node, name, options, 0);
+        }
+        catch
+        {
+            if (!options.noExceptions) throw;
+        }
+    }
+    public static void SerializeNode(StreamWriter writer, VkvNode? node, string name) =>
+        SerializeNode(writer, node, name, VkvOptions.Default);
+
+    private static void SerializeNode(StreamWriter writer, VkvNode? node, string name,
+        VkvOptions options, int indentLevel)
+    {
+        if (node is null) return;
+        else if (node is VkvSingleNode single) SerializeSingleNode(writer, single, name, options, indentLevel);
+        else if (node is VkvTreeNode tree) SerializeTreeNode(writer, tree, name, options, indentLevel);
+        else throw new("Unknown node type.");
+    }
+
+    private static void SerializeSingleNode(StreamWriter writer, VkvSingleNode node, string name,
+        VkvOptions options, int indentLevel)
+    {
+        string? serializedValue = SerializeObject(node.value);
+        if (serializedValue is null) return;
+
+        writer.Write(new string(' ', indentLevel));
+        writer.Write(SerializeString(name, options));
+
+        switch (options.spacing)
+        {
+            case SpacingMode.SingleSpace: writer.Write(' ');
+                break;
+
+            case SpacingMode.IndentSizeSpacing: writer.Write(new string(' ', options.indentSize));
+                break;
+
+            case SpacingMode.DoubleTab: writer.Write("\t\t");
+                break;
+
+            default: throw new VkvSerializationException($"Unknown spacing mode \"{options.spacing}\".");
+        }
+
+        serializedValue = SerializeString(serializedValue, options);
+        writer.WriteLine(serializedValue);
+    }
+    private static void SerializeTreeNode(StreamWriter writer, VkvTreeNode node, string name,
+        VkvOptions options, int indentLevel)
+    {
+        if (node.SubNodeCount <= 0) return;
+
+        writer.Write(new string(' ', indentLevel));
+        writer.WriteLine(SerializeString(name, options));
+        writer.WriteLine(new string(' ', indentLevel) + '{');
+
+        foreach (KeyValuePair<string, VkvNode?> subNode in node)
+            SerializeNode(writer, subNode.Value, subNode.Key, options, indentLevel + options.indentSize);
+
+        writer.WriteLine(new string(' ', indentLevel) + '}');
+    }
+
+    private static string? SerializeObject(object? obj)
+    {
+        if (obj is null) return null;
+        return obj.ToString() ?? string.Empty;
+    }
+
+    private static string SerializeString(string content, VkvOptions options)
+    {
+        if (options.useEscapeCodes)
+        {
+            foreach (KeyValuePair<string, string> escapeCode in p_escapeCodes)
+                content = content.Replace(escapeCode.Key, escapeCode.Value);
+        }
+        if (options.useQuotes) content = $"\"{content}\"";
+        return content;
+    }
+    #endregion
+
+    #region ToNodeTree
+    public static VkvNode? ToNodeTree(object? obj) => ToNodeTree(obj, VkvOptions.Default);
+    public static VkvNode? ToNodeTree(object? obj, VkvOptions options)
+    {
+        try
+        {
+            if (obj is null) return null;
+            Type type = obj.GetType();
+
+            if (type.IsPrimitive || TypeParsers.CanParse(obj)) return new VkvSingleNode(obj);
+            else if (type.IsPointer) throw new("Cannot serialize a pointer.");
+
+            VkvTreeNode tree = new();
+
+            if (obj is IVkvConvertible vkv) return vkv.ToNodeTree();
+            else if (obj is IDictionary dictionary)
+            {
+                object[] keys = new object[dictionary.Count],
+                         values = new object[dictionary.Count];
+                dictionary.Keys.CopyTo(keys, 0);
+                dictionary.Values.CopyTo(values, 0);
+                for (int i = 0; i < dictionary.Count; i++)
+                {
+                    tree[SerializeObject(keys.GetValue(i))!] = ToNodeTree(values.GetValue(i), options);
+                }
+                return tree;
+            }
+            else if (obj is ICollection enumerable)
+            {
+                int index = 0;
+                foreach (object item in enumerable)
+                {
+                    tree[SerializeObject(index)!] = ToNodeTree(item, options);
+                    index++;
+                }
+                return tree;
+            }
+
+            IEnumerable<FieldInfo> validFields = from field in type.GetFields()
+                                                 let isPublic = field.IsPublic
+                                                 let isStatic = field.IsStatic
+                                                 let isIgnored = field.CustomAttributes.Any(x =>
+                                                     x.AttributeType == typeof(VkvIgnoreAttribute))
+                                                 let isConst = field.IsLiteral
+                                                 where isPublic && !isStatic && !isIgnored && !isConst
+                                                 select field;
+
+            IEnumerable<PropertyInfo> validProperties;
+            if (options.serializeProperties)
+            {
+                validProperties = from prop in type.GetProperties()
+                                  let canGet = prop.GetMethod is not null
+                                  let isPublic = canGet && prop.GetMethod!.IsPublic
+                                  let isStatic = canGet && prop.GetMethod!.IsStatic
+                                  let isIgnored = prop.CustomAttributes.Any(x =>
+                                      x.AttributeType == typeof(VkvIgnoreAttribute))
+                                  where canGet && isPublic && !isStatic && !isIgnored
+                                  select prop;
+            }
+            else validProperties = Array.Empty<PropertyInfo>();
+
+            foreach (FieldInfo field in validFields)
+            {
+                VkvKeyNameAttribute? namingAttribute = field.GetCustomAttribute<VkvKeyNameAttribute>();
+                tree[namingAttribute?.name ?? field.Name] = ToNodeTree(field.GetValue(obj), options);
+            }
+            foreach (PropertyInfo prop in validProperties)
+            {
+                VkvKeyNameAttribute? namingAttribute = prop.GetCustomAttribute<VkvKeyNameAttribute>();
+                tree[namingAttribute?.name ?? prop.Name] = ToNodeTree(prop.GetValue(obj), options);
+            }
+
+            return tree;
+        }
+        catch
+        {
+            if (!options.noExceptions) throw;
+            return null;
+        }
+    }
+    #endregion
+}

SrcMod/Valve.NET/Vkv/VkvNode.cs

@@ -0,0 +1,3 @@
+namespace Valve.Vkv;
+
+public abstract class VkvNode { }

SrcMod/Valve.NET/Vkv/VkvOptions.cs

@@ -0,0 +1,27 @@
+namespace Valve.Vkv;
+
+public record class VkvOptions
+{
+    public static VkvOptions Default => new();
+
+    public bool closeWhenFinished;
+    public int indentSize;
+    public bool noExceptions;
+    public bool resetStreamPosition;
+    public bool serializeProperties;
+    public SpacingMode spacing;
+    public bool useEscapeCodes;
+    public bool useQuotes;
+
+    public VkvOptions()
+    {
+        closeWhenFinished = true;
+        indentSize = 4;
+        noExceptions = false;
+        resetStreamPosition = false;
+        serializeProperties = true;
+        spacing = SpacingMode.DoubleTab;
+        useEscapeCodes = false;
+        useQuotes = false;
+    }
+}

SrcMod/Valve.NET/Vkv/VkvSerializer.cs

@@ -0,0 +1,57 @@
+namespace Valve.Vkv;
+
+public class VkvSerializer
+{
+    public VkvOptions Options => p_options;
+
+    private readonly VkvOptions p_options;
+
+    public VkvSerializer() : this(VkvOptions.Default) { }
+    public VkvSerializer(VkvOptions options)
+    {
+        p_options = options;
+    }
+
+    public VkvNode? Deserialize(Stream stream)
+    {
+        long pos = stream.Position;
+        StreamReader reader = new(stream, leaveOpen: !p_options.closeWhenFinished);
+        try
+        {
+            VkvNode? result = VkvConvert.DeserializeNode(reader, p_options);
+            reader.Close();
+            if (!p_options.closeWhenFinished && p_options.resetStreamPosition) stream.Seek(pos, SeekOrigin.Begin);
+            return result;
+        }
+        finally
+        {
+            reader.Close();
+            if (!p_options.closeWhenFinished && p_options.resetStreamPosition) stream.Seek(pos, SeekOrigin.Begin);
+        }
+    }
+    public T? Deserialize<T>(Stream stream)
+    {
+        VkvNode? result = Deserialize(stream);
+        return VkvConvert.FromNodeTree<T>(result, p_options);
+    }
+    public object? Deserialize(Type outputType, Stream stream)
+    {
+        VkvNode? result = Deserialize(stream);
+        return VkvConvert.FromNodeTree(outputType, result, p_options);
+    }
+
+    public void Serialize(Stream stream, object? value, string parentNodeName)
+    {
+        VkvNode? nodeTree = VkvConvert.ToNodeTree(value, p_options);
+        Serialize(stream, nodeTree, parentNodeName);
+    }
+    public void Serialize(Stream stream, VkvNode? parentNode, string parentNodeName)
+    {
+        long pos = stream.Position;
+        StreamWriter writer = new(stream, leaveOpen: !p_options.closeWhenFinished);
+        VkvConvert.SerializeNode(writer, parentNode, parentNodeName, p_options);
+        writer.Close();
+
+        if (!p_options.closeWhenFinished && p_options.resetStreamPosition) stream.Seek(pos, SeekOrigin.Begin);
+    }
+}

SrcMod/Valve.NET/Vkv/VkvSingleNode.cs

@@ -0,0 +1,11 @@
+namespace Valve.Vkv;
+
+public class VkvSingleNode : VkvNode
+{
+    public object? value;
+
+    public VkvSingleNode(object? value = null) : base()
+    {
+        this.value = value;
+    }
+}

SrcMod/Valve.NET/Vkv/VkvTreeNode.cs

@@ -0,0 +1,45 @@
+namespace Valve.Vkv;
+
+public class VkvTreeNode : VkvNode, IEnumerable<KeyValuePair<string, VkvNode?>>
+{
+    public int SubNodeCount => p_subNodes.Count;
+
+    private readonly Dictionary<string, VkvNode?> p_subNodes;
+
+    public VkvTreeNode(Dictionary<string, VkvNode?>? subNodes = null) : base()
+    {
+        p_subNodes = subNodes ?? new();
+    }
+
+    public VkvNode? this[string key]
+    {
+        get
+        {
+            if (p_subNodes.TryGetValue(key, out VkvNode? value)) return value;
+            else return null;
+        }
+        set
+        {
+            if (p_subNodes.ContainsKey(key)) p_subNodes[key] = value;
+            else p_subNodes.Add(key, value);
+        }
+    }
+    public VkvNode? this[int index]
+    {
+        get
+        {
+            if (p_subNodes.Count >= index || index < 0) return null;
+            return p_subNodes.Values.ElementAt(index);
+        }
+        set
+        {
+            if (p_subNodes.Count >= index || index < 0) throw new IndexOutOfRangeException();
+            p_subNodes[p_subNodes.Keys.ElementAt(index)] = value;
+        }
+    }
+
+    public void Add(string key, VkvNode? value) => this[key] = value;
+
+    IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
+    public IEnumerator<KeyValuePair<string, VkvNode?>> GetEnumerator() => p_subNodes.GetEnumerator();
+}