Circular Gauge Custom Control for Silverlight 3 and WPF

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Threading;
using System.ComponentModel;

namespace CircularGaugeDemo
{
    public partial class MainPage : UserControl
    {
        //Private variables
        DispatcherTimer timer;
        Game game1;
        Game game2;
        Game game3;
        Game game4;


        public MainPage()
        {
            InitializeComponent();
            this.Loaded += new RoutedEventHandler(MainPage_Loaded);
           
        }

        void MainPage_Loaded(object sender, RoutedEventArgs e)
        {
            //Set the current value of the gauges
             game1 = new Game(0);
             this.myGauge1.DataContext = game1;
             game2 = new Game(0);
             this.myGauge2.DataContext = game2;
             game3 = new Game(0);
             this.myGauge3.DataContext = game3;
             game4 = new Game(0);
             this.myGauge4.DataContext = game4;

            //Start the timer
            timer = new DispatcherTimer();
            timer.Interval = TimeSpan.FromMilliseconds(2500);
            timer.Tick += new EventHandler(timer_Tick);
            timer.Start();
            
        }


        void timer_Tick(object sender, EventArgs e)
        {
            //Update random scores
            Random r = new Random();
            game1.Score = r.Next(0, 1000);
            double val = r.Next(1, 10);
            game2.Score = val / 10;
            game3.Score = r.Next(-50, 50);
            game4.Score = r.Next(0, 1000);            

        
        }


       
    }

    /// <summary>
    /// Helper class to simulate a game
    /// </summary>
    public class Game : INotifyPropertyChanged
    {
        private double score;

        public double Score
        {
            get { return score; }
            set { score = value;
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs("Score"));
            }
            }
        }


        public Game(double scr)
        {
            this.Score = scr;
        }


        #region INotifyPropertyChanged Members

        public event PropertyChangedEventHandler PropertyChanged;

        #endregion
    }
}