Time for action – creating the CollisionManager class

1. Add a new class called CollisionManager to the AsteroidBeltAssault class.

2. Add the following using directive to the top of the class:

   using Microsoft.Xna.Framework;

3. Add declarations to the CollisionManager class:

   private AsteroidManager asteroidManager;
   private PlayerManager playerManager;
   private EnemyManager enemyManager;
   private ExplosionManager explosionManager;
   private Vector2 offScreen = new Vector2(-500, -500);
   private Vector2 shotToAsteroidImpact = new Vector2(0, -20);
   private int enemyPointValue = 100;

4. Add a constructor to the CollisionManager class:

   public CollisionManager(
       AsteroidManager asteroidManager,
       PlayerManager playerManager,
       EnemyManager enemyManager,
       ExplosionManager explosionManager)
   {
       this.asteroidManager = asteroidManager;
       this.playerManager = playerManager;
       this.enemyManager = enemyManager;
       this.explosionManager = explosionManager;
   }

What just happened?

Since the CollisionManager will...