Change loader entrypoint to an earlier one

BepInEx.Patcher/Program.cs

@@ -59,20 +59,27 @@ namespace BepInEx.Patcher
         static void InjectAssembly(AssemblyDefinition unity, AssemblyDefinition injected)
         {
             //Entry point
-            var originalInjectMethod = injected.MainModule.Types.First(x => x.Name == "Chainloader").Methods.First(x => x.Name == "Initialize");
+            var originalInjectMethod = injected.MainModule.Types.First(x => x.Name == "Chainloader")
+                .Methods.First(x => x.Name == "Initialize");
 
             var injectMethod = unity.MainModule.Import(originalInjectMethod);
 
-            var sceneManager = unity.MainModule.Types.First(x => x.Name == "SceneManager");
+            var sceneManager = unity.MainModule.Types.First(x => x.Name == "Application");
 
-            ILProcessor IL;
+            var voidType = unity.MainModule.Import(typeof(void));
+            var cctor = new MethodDefinition(".cctor",
+                Mono.Cecil.MethodAttributes.Static
+                | Mono.Cecil.MethodAttributes.Private
+                | Mono.Cecil.MethodAttributes.HideBySig
+                | Mono.Cecil.MethodAttributes.SpecialName
+                | Mono.Cecil.MethodAttributes.RTSpecialName,
+                voidType);
 
-            foreach (var loadScene in sceneManager.Methods.Where(x => x.Name == "LoadScene"))
-            {
-                IL = loadScene.Body.GetILProcessor();
+            var ilp = cctor.Body.GetILProcessor();
+            ilp.Append(ilp.Create(OpCodes.Call, injectMethod));
+            ilp.Append(ilp.Create(OpCodes.Ret));
 
-                IL.InsertBefore(loadScene.Body.Instructions[0], IL.Create(OpCodes.Call, injectMethod));
-            }
+            sceneManager.Methods.Add(cctor);
         }
     }
 }