Move App logic to other projects

Zennysoft.Game.Ma.Implementation/App/State/States/AppLogic.State.LeavingMenu.cs

@@ -0,0 +1,24 @@
+namespace Zennysoft.Game.Ma.Implementation;
+
+using Chickensoft.Introspection;
+using Chickensoft.LogicBlocks;
+
+public partial class AppLogic
+{
+  public partial record State
+  {
+    [Meta]
+    public partial record LeavingMenu : State, IGet<Input.FadeOutFinished>
+    {
+      public LeavingMenu()
+      {
+        this.OnEnter(() => Output(new Output.FadeToBlack()));
+      }
+
+      public Transition On(in Input.FadeOutFinished input) =>
+        Get<Data>().ShouldLoadExistingGame
+          ? To<LoadingSaveFile>()
+          : To<InGame>();
+    }
+  }
+}