something something

src-csharp/ExampleComponent.cs

@@ -14,6 +14,14 @@ public class ExampleComponent : Component
         Console.WriteLine($"C# deltaTime {deltaTime} object id {Owner.Id}");
         ImGui.Begin("C# WINDOW");
         ImGui.Text("Hello from ExampleComponent!");
+        if (ImGui.Button("create GameObject"))
+        {
+            GameObject.Create();
+        }
+        if (ImGui.Button("GC Collect"))
+        {
+            GC.Collect();
+        }
         ImGui.End();
     }
 }

src-csharp/GameObject.cs

@@ -41,6 +41,7 @@ public class GameObject
     {
         NativeFunctions.createGameObject(out ulong id, out uint index);
         var o = new GameObject(id, index);
+        Console.WriteLine($"C# created object with id {id}, index {index}");
         return o;
     }
 
@@ -54,18 +55,24 @@ public class GameObject
             throw new Exception($"Can't destroy GameObject({_id})");
     }
 
+    ~GameObject()
+    {
+        // destroys object native part when managed part is garbage-collected
+        Destroy();
+    }
+
     /// <param name="t">type derived from Component</param>
     /// <returns>true if new component instance was created, false if component of the same tipe is already added to GameObject</returns>
     /// <exception cref="Exception"></exception>
     public bool TryCreateComponent(Type t)
     {
-        if(!t.IsSubclassOf(typeof(Component)))
+        if (!t.IsSubclassOf(typeof(Component)))
             throw new Exception($"type {t.FullName} is not a derived class of {typeof(Component).FullName}");
 
-        if(Components.ContainsKey(t))
+        if (Components.ContainsKey(t))
             return false;
-        
-        Component component = (Component?)Activator.CreateInstance(t, this) 
+
+        Component component = (Component?)Activator.CreateInstance(t, this)
             ?? throw new Exception($"can't create instance of class {t.FullName}");
         Components.Add(t, component);
         return true;
@@ -78,7 +85,9 @@ public class GameObject
     
     private void InvokeUpdate(double deltaTime)
     {
-        foreach(var p in Components)
+        Console.WriteLine("C# InvokeUpdate");
+        Console.WriteLine($"id {_id}, index {_index}, destroyed {_isDestroyed}");
+        foreach (var p in Components)
         {
             p.Value.Update(deltaTime);
         }

src-csharp/NativeFunctions.cs

@@ -1,13 +1,12 @@
-using System;
-using System.Runtime.InteropServices;
+using System.Runtime.CompilerServices;
 
 namespace Ougge;
 
 internal static class NativeFunctions
 {
-    [DllImport("__Internal")]
+    [MethodImpl(MethodImplOptions.InternalCall)]
     internal extern static void createGameObject(out ulong id, out uint index);
 
-    [DllImport("__Internal")]
+    [MethodImpl(MethodImplOptions.InternalCall)]
     internal extern static bool freeGameObject(uint index);   
 }