CocosNET (cocos2d port) + Monotouch, my first app

BallScene.cs

using System;
using CocosNet.Layers;
using CocosNet.Labels;
using System.Drawing;
using CocosNet;
using CocosNet.Menus;
using MonoTouch.UIKit;
using CocosNet.Support;
using CocosNet.Sprites;
using CocosNet.Actions;

namespace MyTest
{
	public class BallScene : ColorLayer
	{
		protected Sprite ball;
		
		public BallScene ()
		{
			SizeF s = Director.Instance.WinSize;
			
			//Заголовок
			Label label = new Label("Прыгающий мячик", "Arial", 32);
			label.SetPosition(s.Width / 2f, s.Height - 50);
			AddChild(label, 9999);
			
			//Кнопка для меню
			MenuItemImage item1 = new MenuItemImage("button.png", "button.png");
			item1.Click += HandleItem1Click;

			//Меню
			Menu menu = new Menu(item1);
			menu.SetPosition(s.Width / 2f, s.Height - 150);
			AddChild(menu, 9999);
			
			//Мяч
			ball = new Sprite("ball.png");
			ball.SetPosition(50, 50);
			AddChild(ball, 1);
		}

		void HandleItem1Click (object sender, EventArgs e)
		{
			//MessageBox.Show("Кнопка нажата", "Привет!");
			
			var jump = new JumpBy(2, new PointF(230, 0), 50, 5);
			ball.RunAction(new Sequence(jump, jump.Reverse() as IntervalAction));
		}
	}
}