Implement core game functionality with AppRoot, SaveClient, PlayerRepository, and LevelRepository classes

features/ui/menus/MainMenu.cs

@@ -0,0 +1,58 @@
+using Chickensoft.AutoInject;
+using Chickensoft.Introspection;
+using Godot;
+using Mr.BrickAdventures.game.repositories;
+using Mr.BrickAdventures.game.services;
+
+namespace Mr.BrickAdventures.features.ui.menus;
+
+[Meta(typeof(IAutoNode))]
+public partial class MainMenu : Control
+{
+    public override void _Notification(int what) => this.Notify(what);
+    
+    [Export] public Control MainMenuControl { get; set; } = null!;
+    [Export] public Button NewGameButton { get; set; } = null!;
+    [Export] public Button ContinueButton { get; set; } = null!;
+    [Export] public Button SettingsButton { get; set; } = null!;
+    [Export] public Button CreditsButton { get; set; } = null!;
+    [Export] public Button ExitButton { get; set; } = null!;
+    [Export] public Label VersionLabel { get; set; } = null!;
+    [Export] public Control SettingsControl { get; set; } = null!;
+    [Export] public Control CreditsControl { get; set; } = null!;
+    [Export] public PackedScene FirstLevelScene { get; set; } = null!;
+
+    [Dependency] public SaveService Save => this.DependOn<SaveService>();
+    [Dependency] public LevelRepository Levels => this.DependOn<LevelRepository>();
+
+    public void OnReady() {
+        VersionLabel.Text = $"v. {ProjectSettings.GetSetting("application/config/version")}";
+
+        NewGameButton.Pressed += OnNewGamePressed;
+        ContinueButton.Pressed += OnContinuePressed;
+        SettingsButton.Pressed += () => SettingsControl.Show();
+        CreditsButton.Pressed += () => CreditsControl.Show();
+        ExitButton.Pressed += () => GetTree().Quit();
+    }
+
+    public void OnResolved()
+    {
+        ContinueButton.Disabled = !Save.Exists();
+        (ContinueButton.Disabled ? NewGameButton : ContinueButton).GrabFocus();
+    }
+
+    private void OnNewGamePressed() {
+        Save.NewGame();
+        Levels.SetCurrent(0);
+        GetTree().ChangeSceneToPacked(FirstLevelScene);
+    }
+
+    private void OnContinuePressed() {
+        if (!Save.TryLoad()) {
+            // Fallback: start new game
+            OnNewGamePressed();
+            return;
+        }
+        GetTree().ChangeSceneToPacked(FirstLevelScene);
+    }
+}