Time for action – structuring the game

1. In the EnemyManager class, change the default value of the Active member from true to false:

   public bool Active = false;

2. In the Game1.cs file, modify the declaration for the gameState variable to set the default to GameStates.TitleScreen:

   GameStates gameState = GameStates.TitleScreen;

3. Right-click on the Fonts folder in the content project and select Add | New Item... Create a new SpriteFont object named Pericles14.spritefont.

4. The XML file for the SpriteFont will open automatically. Change the <FontName> tag from Kooteny to Pericles.

5. Add the following declarations to the Game1 class:

   SpriteFont pericles14;
   
   private float playerDeathDelayTime = 10f;
   private float playerDeathTimer = 0f;
   private float titleScreenTimer = 0f;
   private float titleScreenDelayTime = 1f;
   
   private int playerStartingLives = 3;
   private Vector2 playerStartLocation = new Vector2(390, 550);
   private Vector2 scoreLocation = new Vector2(20, 10);
   private Vector2 livesLocation = new Vector2...