Time for action – flying the saucer

In order to give the saucer a more realistic flight path, perform the following steps:

1. 1. Add a new Fields region to the EnemySaucer class, containing the following items:

   #region Fields
   private Random rand = new Random();
   private int flybyChance = 2;
   private float minflyByDelay = 5f;
   private float flyByTimer = 0f;
   private float curveProgress = 0.0f;
   private float curveDelta = 0.2f;
   private Vector3[] curvePoints = new Vector3[4];
   public bool IsOnScreen = false;
   public bool IsDestroyed = false;
   #endregion

2. 2. Add the Spline Helper Methods region and its two methods to the EnemySaucer class as follows:

   #region Spline Helper Methods
   public void GenerateNewCurve()
   {
     curvePoints[0] = new Vector3(-60, (rand.Next(0, 3) - 1) * 25, 64);
     curvePoints[1] = new Vector3(-45, rand.Next(12, 19), 64);
     curvePoints[2] = new Vector3(45, rand.Next(12, 19), 64);
     curvePoints[3] = new Vector3(60, (rand.Next(0, 3) - 1 * 25), 64);
   
     if (rand.Next(0, 2) == 0)
     {
         Vector3...