/// <summary>
/// Initializes a new instance of the Game class.
/// </summary>
/// <param name="boundaries">The rectangle representing the gaming area.</param>
/// <param name="random">A Random for use with all inner functions requiring a random.</param>
public Game(Rectangle boundaries, Random random) {
/* initialize the two accepted parameters before
ANYTHING else.*/
this.boundaries = boundaries;
this.random = random;
this.playerShipStartingLocation = new Point(boundaries.Right - 100, boundaries.Bottom - 50);
this.mothershipStartingLocation = new Point(boundaries.Left + 40, 90);
this.motherShipDirection = Direction.Right;
this.motherShip = null;
this.motherShipTravelArea = new Rectangle(new Point(boundaries.Left, 90), new Size(boundaries.Width, 40));
this.playerShip = new PlayerShip(playerShipStartingLocation);
this.playerShots = new List<Shot>();
this.playerBombs = new List<Bomb>();
this.invaderShots = new List<Shot>();
this.invaders = new List<Invader>();
this.livesLeftDisplay = new List<Bitmap>();
this.deadInvaderExplosions = new List<Explosion>();
this.otherExplosions = new List<Explosion>();
this.deadInvaderScores = new List<ScoreFlash>();
this.mothershipHasAppeared = false;
this.stars = new Stars(boundaries, random);
for (int i = 0; i < livesLeft; i++)
livesLeftDisplay.Add(playerShip.GetImage());
NextWave();
} // end constructor method Game
