Add new functionality.

IPA/IPA.csproj

@@ -54,17 +54,20 @@
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="PatchContext.cs" />
     <Compile Include="Patcher\BackupManager.cs" />
     <Compile Include="Patcher\Patcher.cs" />
     <Compile Include="Patcher\Virtualizer.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Shortcut.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />

IPA/PatchContext.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace IPA
+{
+    public class PatchContext
+    {
+        /// <summary>
+        /// Gets the filename of the executable.
+        /// </summary>
+        public string Executable { get; private set; }
+
+        /// <summary>
+        /// Gets the path to the launcher executable (in the IPA folder)
+        /// </summary>
+        public string LauncherPathSrc { get; private set; }
+        public string DataPathSrc { get; private set; }
+        public string PluginsFolder { get; private set; }
+        public string ProjectName { get; private set; }
+        public string DataPathDst { get; private set; }
+        public string ManagedPath { get; private set; }
+        public string EngineFile { get; private set; }
+        public string AssemblyFile { get; private set; }
+        public string[] Args { get; private set; }
+        public string ProjectRoot { get; private set; }
+        public string IPARoot { get; private set; }
+        public string ShortcutPath { get; private set; }
+
+        private PatchContext() { }
+
+        public static PatchContext Create(String[] args)
+        {
+            var context = new PatchContext();
+            
+            context.Args = args;
+            context.Executable = args[0];
+            context.ProjectRoot = Path.GetDirectoryName(context.Executable);
+            context.IPARoot = Path.Combine(context.ProjectRoot, "IPA");
+            context.LauncherPathSrc = Path.Combine(context.IPARoot, "Launcher.exe");
+            context.DataPathSrc = Path.Combine(context.IPARoot, "Data");
+            context.PluginsFolder = Path.Combine(context.ProjectRoot, "Plugins");
+            context.ProjectName = Path.GetFileNameWithoutExtension(context.Executable);
+            context.DataPathDst = Path.Combine(context.ProjectRoot, context.ProjectName + "_Data");
+            context.ManagedPath = Path.Combine(context.DataPathDst, "Managed");
+            context.EngineFile = Path.Combine(context.ManagedPath, "UnityEngine.dll");
+            context.AssemblyFile = Path.Combine(context.ManagedPath, "Assembly-Csharp.dll");
+
+            string shortcutName = string.Format("{0} (Patch & Launch)", context.ProjectName);
+            context.ShortcutPath = Path.Combine(context.ProjectRoot, shortcutName) + ".lnk";
+
+            return context;
+        }
+    }
+}

IPA/Patcher/BackupManager.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Text;
+using System.Text.RegularExpressions;
 
 namespace IPA.Patcher
 {
@@ -29,5 +30,44 @@ namespace IPA.Patcher
             return backup;
         }
 
+        public static string FindLatestBackup(string file)
+        {
+            var directory = Path.GetDirectoryName(file);
+            var filename = Path.GetFileName(file);
+
+            var regex = new Regex(String.Format(@"^{0}\.Original\d*$", Regex.Escape(filename)));
+            var extractNumRegex = new Regex(@"\d+$");
+
+            string latestFile = null;
+            int latestNum = -1;
+            foreach(var f in Directory.GetFiles(directory))
+            {
+                if(regex.IsMatch(Path.GetFileName(f)))
+                {
+                    var match = extractNumRegex.Match(f);
+                    int number = match.Success ? int.Parse(match.Value) : 0;
+                    if(number > latestNum)
+                    {
+                        latestNum = number;
+                        latestFile = f;
+                    }
+                }
+            }
+
+            return latestFile;
+        }
+        
+        public static bool Restore(string file)
+        {
+            var backup = FindLatestBackup(file);
+            if(backup != null)
+            {
+                File.Delete(file);
+                File.Move(backup, file);
+                return true;
+            }
+            return false;
+        }
+
     }
 }

IPA/Program.cs

@@ -1,14 +1,21 @@
 using IPA.Patcher;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
+using System.Reflection;
+using System.Runtime.InteropServices;
 using System.Text;
+using System.Text.RegularExpressions;
+using System.Windows.Forms;
 
 namespace IPA
 {
+  
     class Program
     {
+
         static void Main(string[] args)
         {
             if(args.Length < 1 || !args[0].EndsWith(".exe"))
@@ -16,61 +23,137 @@ namespace IPA
                 Fail("Drag an (executable) file on the exe!");
             }
 
-            string launcherSrc = Path.Combine("IPA", "Launcher.exe");
+            try
-            string dataSrcPath = Path.Combine("IPA", "Data");
-            string pluginsFolder = "Plugins";
-            string projectName = Path.GetFileNameWithoutExtension(args[0]);
-            string dataDstPath = Path.Combine(Path.GetDirectoryName(args[0]), projectName + "_Data");
-            string managedPath = Path.Combine(dataDstPath, "Managed");
-            string engineFile = Path.Combine(managedPath, "UnityEngine.dll");
-            string assemblyFile = Path.Combine(managedPath, "Assembly-Csharp.dll");
-
-
-            // Sanitizing
-            if (!File.Exists(launcherSrc)) Fail("Couldn't find DLLs! Make sure you extracted all contents of the release archive.");
-            if(!Directory.Exists(dataDstPath) || !File.Exists(engineFile) || !File.Exists(assemblyFile))
             {
-                Fail("Game does not seem to be a Unity project. Could not find the libraries to patch. ");
+                var context = PatchContext.Create(args);
+                bool isRevert = args.Contains("--revert") || Keyboard.IsKeyDown(Keys.LMenu);
+                // Sanitizing
+                Validate(context);
+
+                if (isRevert)
+                {
+                    Revert(context);
+                }
+                else
+                {
+                    Install(context);
+                    StartIfNeedBe(context);
+                }
+            } catch(Exception e)
+            {
+                Fail(e.Message);
+            }
         }
 
+        private static void Validate(PatchContext c)
+        {
+            if (!File.Exists(c.LauncherPathSrc)) Fail("Couldn't find DLLs! Make sure you extracted all contents of the release archive.");
+            if (!Directory.Exists(c.DataPathDst) || !File.Exists(c.EngineFile) || !File.Exists(c.AssemblyFile))
+            {
+                Fail("Game does not seem to be a Unity project. Could not find the libraries to patch.");
+            }
+        }
+
+        private static void Install(PatchContext context)
+        {
             try
             {
                 // Copying
                 Console.Write("Updating files... ");
-                CopyAll(new DirectoryInfo(dataSrcPath), new DirectoryInfo(dataDstPath));
+                CopyAll(new DirectoryInfo(context.DataPathSrc), new DirectoryInfo(context.DataPathDst));
                 Console.WriteLine("Successfully updated files!");
 
-                if (!Directory.Exists(pluginsFolder))
+                if (!Directory.Exists(context.PluginsFolder))
                 {
                     Console.WriteLine("Creating plugins folder... ");
-                    Directory.CreateDirectory(pluginsFolder);
+                    Directory.CreateDirectory(context.PluginsFolder);
                 }
 
                 // Patching
-                var patchedModule = PatchedModule.Load(engineFile);
+                var patchedModule = PatchedModule.Load(context.EngineFile);
-                if(!patchedModule.IsPatched)
+                if (!patchedModule.IsPatched)
                 {
                     Console.Write("Patching UnityEngine.dll... ");
-                    BackupManager.MakeBackup(engineFile);
+                    BackupManager.MakeBackup(context.EngineFile);
                     patchedModule.Patch();
                     Console.WriteLine("Done!");
                 }
 
                 // Virtualizing
-                var virtualizedModule = VirtualizedModule.Load(assemblyFile);
+                var virtualizedModule = VirtualizedModule.Load(context.AssemblyFile);
-                if(!virtualizedModule.IsVirtualized)
+                if (!virtualizedModule.IsVirtualized)
                 {
                     Console.Write("Virtualizing Assembly-Csharp.dll... ");
-                    BackupManager.MakeBackup(assemblyFile);
+                    BackupManager.MakeBackup(context.AssemblyFile);
                     virtualizedModule.Virtualize();
                     Console.WriteLine("Done!");
                 }
-            } catch(Exception e)
+
+                // Creating shortcut
+                if(!File.Exists(context.ShortcutPath))
+                {
+                    Console.Write("Creating shortcut... ");
+                    Shortcut.Create(context.ShortcutPath, Assembly.GetExecutingAssembly().Location, Args(context.Executable, "--launch"), context.ProjectRoot, "Launches the game and makes sure it's in a patched state", "", context.Executable);
+                    Console.WriteLine("Created");
+                }
+            }
+            catch (Exception e)
             {
                 Fail("Oops! This should not have happened.\n\n" + e);
             }
 
             Console.WriteLine("Finished!");
+
+        }
+
+        private static void Revert(PatchContext context)
+        {
+            Console.Write("Restoring game assembly... ");
+            if(BackupManager.Restore(context.AssemblyFile))
+            {
+                Console.WriteLine("Done!");
+            } else
+            {
+                Console.WriteLine("Already vanilla!");
+            }
+
+            Console.Write("Restoring unity engine... ");
+            if(BackupManager.Restore(context.EngineFile))
+            {
+                Console.WriteLine("Done!");
+            }
+            else
+            {
+                Console.WriteLine("Already vanilla!");
+            }
+
+            if (File.Exists(context.ShortcutPath))
+            {
+                Console.WriteLine("Deleting shortcut...");
+                File.Delete(context.ShortcutPath);
+            }
+
+            Console.WriteLine("");
+            Console.WriteLine("--- Done reverting ---");
+
+            if (!Environment.CommandLine.Contains("--nowait"))
+            {
+                Console.WriteLine("\n\n[Press any key to quit]");
+                Console.ReadKey();
+            }
+        }
+
+        private static void StartIfNeedBe(PatchContext context)
+        {
+            var argList = context.Args.ToList();
+            bool launch = argList.Remove("--launch");
+
+            argList.RemoveAt(0);
+
+            if(launch)
+            {
+                Process.Start(context.Executable, Args(argList.ToArray()));
+            }
         }
 
         public static void CopyAll(DirectoryInfo source, DirectoryInfo target)
@@ -108,5 +191,68 @@ namespace IPA
             }
             Environment.Exit(1);
         }
+
+        public static string Args(params string[] args)
+        {
+            return string.Join(" ", args.Select(EncodeParameterArgument).ToArray());
+        }
+
+        /// <summary>
+        /// Encodes an argument for passing into a program
+        /// </summary>
+        /// <param name="original">The value that should be received by the program</param>
+        /// <returns>The value which needs to be passed to the program for the original value 
+        /// to come through</returns>
+        public static string EncodeParameterArgument(string original)
+        {
+            if (string.IsNullOrEmpty(original))
+                return original;
+            string value = Regex.Replace(original, @"(\\*)" + "\"", @"$1\$0");
+            value = Regex.Replace(value, @"^(.*\s.*?)(\\*)$", "\"$1$2$2\"");
+            return value;
+        }
+
+
+        public abstract class Keyboard
+        {
+            [Flags]
+            private enum KeyStates
+            {
+                None = 0,
+                Down = 1,
+                Toggled = 2
+            }
+
+            [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
+            private static extern short GetKeyState(int keyCode);
+
+            private static KeyStates GetKeyState(Keys key)
+            {
+                KeyStates state = KeyStates.None;
+
+                short retVal = GetKeyState((int)key);
+
+                //If the high-order bit is 1, the key is down
+                //otherwise, it is up.
+                if ((retVal & 0x8000) == 0x8000)
+                    state |= KeyStates.Down;
+
+                //If the low-order bit is 1, the key is toggled.
+                if ((retVal & 1) == 1)
+                    state |= KeyStates.Toggled;
+
+                return state;
+            }
+
+            public static bool IsKeyDown(Keys key)
+            {
+                return KeyStates.Down == (GetKeyState(key) & KeyStates.Down);
+            }
+
+            public static bool IsKeyToggled(Keys key)
+            {
+                return KeyStates.Toggled == (GetKeyState(key) & KeyStates.Toggled);
+            }
+        }
     }
 }

IPA/Shortcut.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace IPA
+{
+    public class Shortcut
+    {
+        private static Type m_type = Type.GetTypeFromProgID("WScript.Shell");
+        private static object m_shell = Activator.CreateInstance(m_type);
+
+        [ComImport, TypeLibType((short)0x1040), Guid("F935DC23-1CF0-11D0-ADB9-00C04FD58A0B")]
+        private interface IWshShortcut
+        {
+            [DispId(0)]
+            string FullName { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0)] get; }
+
+            [DispId(0x3e8)]
+            string Arguments { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3e8)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3e8)] set; }
+
+            [DispId(0x3e9)]
+            string Description { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3e9)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3e9)] set; }
+
+            [DispId(0x3ea)]
+            string Hotkey { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3ea)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3ea)] set; }
+
+            [DispId(0x3eb)]
+            string IconLocation { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3eb)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3eb)] set; }
+
+            [DispId(0x3ec)]
+            string RelativePath { [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3ec)] set; }
+
+            [DispId(0x3ed)]
+            string TargetPath { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3ed)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3ed)] set; }
+
+            [DispId(0x3ee)]
+            int WindowStyle { [DispId(0x3ee)] get; [param: In] [DispId(0x3ee)] set; }
+
+            [DispId(0x3ef)]
+            string WorkingDirectory { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3ef)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3ef)] set; }
+
+            [TypeLibFunc((short)0x40), DispId(0x7d0)]
+            void Load([In, MarshalAs(UnmanagedType.BStr)] string PathLink);
+
+            [DispId(0x7d1)]
+            void Save();
+        }
+
+        public static void Create(string fileName, string targetPath, string arguments, string workingDirectory, string description, string hotkey, string iconPath)
+        {
+            IWshShortcut shortcut = (IWshShortcut)m_type.InvokeMember("CreateShortcut", System.Reflection.BindingFlags.InvokeMethod, null, m_shell, new object[] { fileName });
+            shortcut.Description = description;
+            shortcut.Hotkey = hotkey;
+            shortcut.TargetPath = targetPath;
+            shortcut.WorkingDirectory = workingDirectory;
+            shortcut.Arguments = arguments;
+            if (!string.IsNullOrEmpty(iconPath))
+                shortcut.IconLocation = iconPath;
+            shortcut.Save();
+        }
+    }
+}