First pass scriptable subsystems that has the same lifetime of the engine

NuakeNet/src/EngineSubsystem.cs

@@ -0,0 +1,6 @@
+namespace Nuake.Net;
+
+public class EngineSubsystem
+{
+    
+}

NuakeNet/src/EngineTickableSubsystem.cs

@@ -0,0 +1,6 @@
+namespace Nuake.Net;
+
+public class EngineTickableSubsystem
+{
+    
+}

NuakeNet/src/main.cs

@@ -5,6 +5,7 @@ using System.Collections;
 using System.Collections.Generic;
 using System.Drawing;
 using System.Numerics;
+using System.Reflection;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
@@ -18,6 +19,8 @@ namespace Nuake.Net
     {
         internal static unsafe delegate*<NativeString, void> LoggerLogIcall;
         internal static unsafe delegate*<NativeString, void> LoadSceneIcall;
+        internal static unsafe delegate*<NativeString, NativeInstance<EngineSubsystem>> GetSubsystemByNameIcall;
+        
         public Engine() { }
 
         public static void LoadScene(string path)
@@ -33,6 +36,14 @@ namespace Nuake.Net
         {
             unsafe { LoggerLogIcall(input); }
         }
+
+        public static T? GetSubsystem<T>() where T : EngineSubsystem
+        {
+            unsafe
+            {
+                return (T?)GetSubsystemByNameIcall(typeof(T).FullName);
+            }
+        }
     }
 
     public struct AABB