Re-introduce prototype code

src/game/GameLogic.State.cs

@@ -0,0 +1,28 @@
+using Chickensoft.Introspection;
+using Chickensoft.LogicBlocks;
+
+namespace GameJamDungeon
+{
+  public partial class GameLogic
+  {
+    [Meta]
+    public abstract partial record State : StateLogic<State>
+    {
+      protected State()
+      {
+        OnAttach(() =>
+        {
+          var gameRepo = Get<IGameRepo>();
+          gameRepo.IsPaused.Sync += OnIsPaused;
+        });
+        OnDetach(() =>
+        {
+          var gameRepo = Get<IGameRepo>();
+          gameRepo.IsPaused.Sync -= OnIsPaused;
+        });
+      }
+
+      public void OnIsPaused(bool isPaused) => Output(new Output.SetPauseMode(isPaused));
+    }
+  }
+}