Windows Phone: Are you Game? Part 1

using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Harlinn.WindowsPhone.XNA.Engine.Imaging;

namespace Harlinn.WindowsPhone.XNA.Engine.Particles
{
  public class Particle 
  {
    Vector2 position;
    Vector2 velocity;
    float life;
    int color;

    private static readonly Random random = new Random();

    public Particle()
    {
 
    }


    public static Random Random
    {
      get
      {
        return random;
      }
    }

    public Vector2 Position
    {
      get
      {
        return position;
      }
      set
      {
        if (position == value)
          return;
        position = value;
      }
    }
    public Vector2 Velocity
    {
      get
      {
        return velocity;
      }
      set
      {
        if (velocity == value)
          return;
        velocity = value;
      }
    }
    public float Life
    {
      get
      {
        return life;
      }
      set
      {
        if (life == value)
          return;
        life = value;
      }
    }
    public int Color
    {
      get
      {
        return color;
      }
      set
      {
        if (color == value)
          return;
        color = value;
      }
    }


    public virtual void Reset(Vector2 newPosition)
    {
      position = newPosition;
      life = random.Next(200) + 300;
    }

    public virtual void Update(float elapsedTime)
    {
      position.X += velocity.X * elapsedTime;
      position.Y += velocity.Y * elapsedTime;

    }
  }

}