public MainPage(IGame game, IPixelMapper pixelMapper, OrderedList <ITool> tools, OrderedList <ILayerRenderer> layers, OrderedList <ICommand> commands, ITrainController trainControls, ITrackParameters trackParameters, ITrackLayout trackLayout, IGameStorage gameStorage, ITimer gameTimer, Factory <IToolPreviewer> previewerFactory) { this.Title("Trains - " + ThisAssembly.AssemblyInformationalVersion); var controlDelegate = new TrainsDelegate(game, pixelMapper, previewerFactory); _miniMapDelegate = new MiniMapDelegate(trackLayout, trackParameters, pixelMapper); this.Body = () => { return(new HStack() { new VStack() { _configurationShown?null: new Button(trainControls.BuildMode ? "Building" : "Playing", () => SwitchGameMode()), new Spacer(), _configurationShown ? CreateConfigurationControls(layers) : CreateToolsControls(tools, controlDelegate, trainControls.BuildMode.Value), new Spacer(), _configurationShown || !trainControls.BuildMode ? null : CreateCommandControls(commands), new Spacer(), new Button("Configuration", () => _configurationShown.Value = !_configurationShown.Value), new DrawableControl(_miniMapDelegate).Frame(height: 100) }.Frame(100, alignment: Alignment.Top), new VStack() { new TrainControllerPanel(trainControls), new DrawableControl(controlDelegate) } }.FillHorizontal()); }; _gameTimer = gameTimer; _gameTimer.Elapsed += (s, e) => { game.AdjustViewPortIfNecessary(); controlDelegate.FlagDraw(); _miniMapDelegate.FlagDraw(); ThreadHelper.Run(async() => { await ThreadHelper.SwitchToMainThreadAsync(); controlDelegate.Invalidate(); _miniMapDelegate.Invalidate(); }); }; _trackLayout = trackLayout; _gameStorage = gameStorage; void SwitchGameMode() { trainControls.ToggleBuildMode(); if (controlDelegate == null) { return; } controlDelegate.CurrentTool.Value = tools.FirstOrDefault(t => ShouldShowTool(trainControls.BuildMode, t)); } }