Add game scene and level catalog interfaces, and implement scene management in AppRoot

features/ui/menus/GameOverScreen.cs

@@ -0,0 +1,26 @@
+using Chickensoft.AutoInject;
+using Chickensoft.Introspection;
+using Godot;
+using Mr.BrickAdventures.app;
+
+namespace Mr.BrickAdventures.features.ui.menus;
+
+[Meta(typeof(IAutoNode))]
+public partial class GameOverScreen : Control
+{
+    public override void _Notification(int what) => this.Notify(what);
+
+    [Export] public Button RestartButton { get; set; } = null!;
+    [Export] public Button MainMenuButton { get; set; } = null!;
+    [Export] public PackedScene MainMenuScene { get; set; } = null!;
+
+    [Dependency] public IGameScenes Scenes => this.DependOn<IGameScenes>();
+
+    public void OnReady() {
+        Visible = false;
+        RestartButton.Pressed += () => Scenes.Restart();
+        MainMenuButton.Pressed += () => Scenes.ReturnToMain(MainMenuScene);
+    }
+
+    public void ShowGameOver() => Show();
+}