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

features/ui/menus/PauseMenu.cs

@@ -1,6 +1,33 @@
+using Chickensoft.AutoInject;
+using Chickensoft.Introspection;
+using Godot;
+using Mr.BrickAdventures.app;
+using Mr.BrickAdventures.game.services;
+
 namespace Mr.BrickAdventures.features.ui.menus;
 
-public class PauseMenu
+[Meta(typeof(IAutoNode))]
+public partial class PauseMenu : Control
 {
+    public override void _Notification(int what) => this.Notify(what);
+
+    [Export] public Button ResumeButton { get; set; } = null!;
+    [Export] public Button RestartButton { get; set; } = null!;
+    [Export] public Button MainMenuButton { get; set; } = null!;
+
+    [Dependency] public IGameScenes Scenes => this.DependOn<IGameScenes>();
+    [Dependency] public ILevelCatalog Catalog => this.DependOn<ILevelCatalog>();
+    [Dependency] public LevelService Levels => this.DependOn<LevelService>();
     
+    public void OnReady() {
+        Visible = false;
+        ResumeButton.Pressed += () => { GetTree().Paused = false; Hide(); };
+        RestartButton.Pressed += () => { GetTree().Paused = false; Scenes.Restart(); };
+        MainMenuButton.Pressed += () => { GetTree().Paused = false; Scenes.ReturnToMain(Catalog.MainMenu); };
+    }
+
+    public void Toggle() {
+        if (Visible) { GetTree().Paused = false; Hide(); }
+        else { Show(); GetTree().Paused = true; }
+    }
 }