Use new version handler for Il2CppInteropManager

BepInEx.IL2CPP/Il2CppInteropManager.cs

@@ -11,6 +11,7 @@ using BepInEx.Configuration;
 using BepInEx.IL2CPP.Hook;
 using BepInEx.IL2CPP.Logging;
 using BepInEx.Logging;
+using BepInEx.Unity.Core;
 using Cpp2IL.Core;
 using HarmonyLib;
 using Il2CppInterop.Common;
@@ -148,7 +149,7 @@ internal static class Il2CppInteropManager
                    : null;
     }
 
-    public static void Initialize(Version unityVersion)
+    public static void Initialize()
     {
         if (initialized)
             throw new InvalidOperationException("Already initialized");
@@ -159,9 +160,11 @@ internal static class Il2CppInteropManager
 
         GenerateInteropAssemblies();
         var interopLogger = LoggerFactory.CreateLogger("Il2CppInterop");
+
+        var unityVersion = UnityInfo.Version;
         Il2CppInteropRuntime.Create(new RuntimeConfiguration
                             {
-                                UnityVersion = unityVersion,
+                                UnityVersion = new Version(unityVersion.Major, unityVersion.Minor, unityVersion.Build),
                                 DetourProvider = new Il2CppInteropDetourProvider()
                             })
                             .AddLogger(interopLogger)
@@ -180,8 +183,7 @@ internal static class Il2CppInteropManager
             Directory.EnumerateFiles(IL2CPPInteropAssemblyPath, "*.dll").Do(File.Delete);
 
             AppDomain.CurrentDomain.AddCecilPlatformAssemblies(UnityBaseLibsDirectory);
-            var unityVersion = Preloader.UnityVersion.ToString(3);
-            DownloadUnityAssemblies(unityVersion);
+            DownloadUnityAssemblies();
             var dummyAssemblies = RunCpp2Il();
 
             if (DumpDummyAssemblies.Value)
@@ -202,10 +204,12 @@ internal static class Il2CppInteropManager
         }
     }
 
-    private static void DownloadUnityAssemblies(string unityVersion)
+    private static void DownloadUnityAssemblies()
     {
+        var unityVersion = UnityInfo.Version;
         var source =
-            UnityBaseLibrariesSource.Value.Replace("{VERSION}", unityVersion);
+            UnityBaseLibrariesSource.Value.Replace("{VERSION}",
+                                                   $"{unityVersion.Major}.{unityVersion.Minor}.{unityVersion.Build}");
 
         if (!string.IsNullOrEmpty(source))
         {
@@ -249,10 +253,13 @@ internal static class Il2CppInteropManager
         Cpp2IL.Core.Logger.ErrorLog += (message, s) =>
             cpp2IlLogger.LogError($"[{s}] {message.Trim()}");
 
-        var cpp2IlUnityVersion =
-            Cpp2IlApi.DetermineUnityVersion(Paths.ExecutablePath,
-                                            Path.Combine(Paths.GameRootPath, $"{Paths.ProcessName}_Data"));
-        Cpp2IlApi.InitializeLibCpp2Il(GameAssemblyPath, metadataPath, cpp2IlUnityVersion, false);
+        var unityVersion = UnityInfo.Version;
+        Cpp2IlApi.InitializeLibCpp2Il(GameAssemblyPath, metadataPath, new int[]
+        {
+            unityVersion.Major,
+            unityVersion.Minor,
+            unityVersion.Build,
+        }, false);
         sourceAssemblies = Cpp2IlApi.MakeDummyDLLs();
         Cpp2IlApi.RunAttributeRestorationForAllAssemblies(null,
                                                           LibCpp2IlMain.MetadataVersion >= 29 ||

BepInEx.IL2CPP/Preloader.cs

@@ -1,28 +1,17 @@
 using System;
-using System.Diagnostics;
-using System.Globalization;
 using System.Reflection;
 using System.Runtime.InteropServices;
-using BepInEx.Configuration;
 using BepInEx.Logging;
 using BepInEx.Preloader.Core;
 using BepInEx.Preloader.Core.Logging;
 using BepInEx.Preloader.Core.Patching;
 using BepInEx.Preloader.RuntimeFixes;
+using BepInEx.Unity.Core;
 
 namespace BepInEx.IL2CPP;
 
 public static class Preloader
 {
-    #region Config
-
-    private static readonly ConfigEntry<string> ConfigUnityVersion = ConfigFile.CoreConfig.Bind(
-     "IL2CPP", "UnityVersion",
-     string.Empty,
-     "Unity version to report to Il2CppUnhollower. If empty, version is automatically determined from the game process.");
-
-    #endregion
-
     private static PreloaderConsoleListener PreloaderLog { get; set; }
 
     internal static ManualLogSource Log => PreloaderLogger.Log;
@@ -30,8 +19,6 @@ public static class Preloader
     // TODO: This is not needed, maybe remove? (Instance is saved in IL2CPPChainloader itself)
     private static IL2CPPChainloader Chainloader { get; set; }
 
-    public static Version UnityVersion { get; private set; }
-
     public static void Run()
     {
         try
@@ -62,8 +49,7 @@ public static class Preloader
 
             NativeLibrary.SetDllImportResolver(typeof(Il2CppInterop.Runtime.IL2CPP).Assembly, DllImportResolver);
 
-            InitializeUnityVersion();
-            Il2CppInteropManager.Initialize(UnityVersion);
+            Il2CppInteropManager.Initialize();
 
             using (var assemblyPatcher = new AssemblyPatcher((data, _) => Assembly.Load(data)))
             {
@@ -103,50 +89,4 @@ public static class Preloader
 
         return IntPtr.Zero;
     }
-
-    private static void InitializeUnityVersion()
-    {
-        if (TryInitializeUnityVersion(ConfigUnityVersion.Value))
-            Log.Log(LogLevel.Warning, "Unity version obtained from the config.");
-        else if (TryInitializeUnityVersion(Process.GetCurrentProcess().MainModule.FileVersionInfo.FileVersion))
-            Log.Log(LogLevel.Debug, "Unity version obtained from main application module.");
-        else
-            Log.Log(LogLevel.Error, "Running under default Unity version. UnityVersionHandler is not initialized.");
-    }
-
-    private static bool TryInitializeUnityVersion(string version)
-    {
-        try
-        {
-            if (string.IsNullOrWhiteSpace(version))
-                return false;
-
-            var parts = version.Split('.');
-            var major = 0;
-            var minor = 0;
-            var build = 0;
-
-            // Issue #229 - Don't use Version.Parse("2019.4.16.14703470L&ProductVersion")
-            var success = int.TryParse(parts[0], NumberStyles.Integer, CultureInfo.InvariantCulture, out major);
-            if (success && parts.Length > 1)
-                success = int.TryParse(parts[1], NumberStyles.Integer, CultureInfo.InvariantCulture, out minor);
-            if (success && parts.Length > 2)
-                success = int.TryParse(parts[2], NumberStyles.Integer, CultureInfo.InvariantCulture, out build);
-
-            if (!success)
-            {
-                Log.LogError($"Failed to parse Unity version: {version}");
-                return false;
-            }
-
-            UnityVersion = new Version(major, minor, build);
-            Log.LogInfo($"Running under Unity v{UnityVersion}");
-            return true;
-        }
-        catch (Exception ex)
-        {
-            Log.LogError($"Failed to parse Unity version: {ex}");
-            return false;
-        }
-    }
 }