Time for action – the EffectsManager class

1. Add a new class called EffectsManager to the Robot Rampage project.

2. Add the following using directives to the class file:

   using Microsoft.Xna.Framework;
   using Microsoft.Xna.Framework.Graphics;

3. Modify the declaration of the EffectsManager class to make it static:

   static class EffectsManager

4. Add declarations to the EffectsManager class:

   #region Declarations
   static public List<Particle> Effects = new List<Particle>();
   static Random rand = new Random();
   static public Texture2D Texture;
   static public Rectangle ParticleFrame = new Rectangle(0, 288, 2, 2);
   static public List<Rectangle> ExplosionFrames = 
       new List<Rectangle>();
   #endregion

5. Add an Initialize() method to the EffectsManager class:

   #region Initialization
   public static void Initialize(
       Texture2D texture,
       Rectangle particleFrame,
       Rectangle explosionFrame,
       int explosionFrameCount)
   {
       Texture = texture;
       ParticleFrame = particleFrame;
       ExplosionFrames...