public void Start()
{
gameCell.value = Utils.LoadFromJsonFile <GameModel>(saveFileName, () => null, false);
// game starts paused
paused.value = true;
// This is reactive binding, so menu will be active when game paused,
// This approach allows to write cleaner, easier to change code
menu.SetActive(paused);
menu.newGame.Subscribe(() =>
{
gameCell.value = GameModel.New(menu.rocketConfigSelected);
paused.value = false;
ResetTitleToDefault();
view.AdjustCamera(game.planets.Count - 1);
});
// Also a reactive binding shortcut
menu.resume.SetActive(gameCell.IsNot(null));
menu.resume.Subscribe(() => paused.value = false);
menu.exit.Subscribe(Application.Quit);
// Here is the reactive library operators example
// game model is changing over time, and collections in game model are changing over time
// Join() allows to collapse any complex dependant changes into simple IReactiveCollection or ICell
// Its very cool because view actually do not care when and how game model is changed, it just shows dynamic collection of items
// MapWithDefaultIfNull(...) allows to choose empty collection when game model is null
var planets = gameCell.MapWithDefaultIfNull(m => m.planets, StaticCollection <Planet> .Empty()).Join();
var rockets = gameCell.MapWithDefaultIfNull(m => m.rockets, StaticCollection <RocketInstance> .Empty()).Join();
view.Show(planets, rockets, gameCell.Map(g => g.playerPlanetId));
view.SetHudCanvasVisible(paused.Not());
ResetTitleToDefault();
}