XNA 4.0 Game Development by Example Beginner's Guide

Time for action – creating explosions

1. Add the RandomDirection() helper method to the ExplosionManager class:

   public Vector2 randomDirection(float scale)
   {
       Vector2 direction;
       do
       {
           direction = new Vector2(
           rand.Next(0, 101) - 50,
           rand.Next(0, 101) - 50);
       } while (direction.Length() == 0);
       direction.Normalize();
       direction *= scale;
   
       return direction;
   }

2. Add the AddExplosion() method to the ExplosionManager class:

   public void AddExplosion(Vector2 location, Vector2 momentum) { Vector2 pieceLocation = location - new Vector2(pieceRectangles[0].Width/2, pieceRectangles[0].Height/2); int pieces = rand.Next(minPieceCount, maxPieceCount + 1); for (int x = 0; x < pieces; x++) { ExplosionParticles.Add(new Particle( pieceLocation, texture, pieceRectangles[rand.Next(0,pieceRectangles.Count)], ...