Time for action – implementing score tracking

1. Add a property to the Player class to hold the player's score:

   Public Property Score As Integer

2. Replace the current Update() method in the LevelManager class with the following new version of the method:

   Public Sub Update(gameTime As GameTime)
       If Not _player.Dead Then
           For x As Integer = _gemstones.Count - 1 To 0 Step - 1
               _gemstones(x).Update(gameTime)
               If _player.CollisionRectangle.Intersects(
                   _gemstones(x).CollisionRectangle) Then
   
                   _gemstones.RemoveAt(x)
                   _player.Score += 10
               End IF
           Next
       End If
   End Sub

3. In the Game1 class, add a declaration for a SpriteFont instance that we can use to draw the player's score and a vector pointing to the location on the screen where the score will be displayed:

   Private pericles8 As SpriteFont
   Private scorePosition As Vector2 = New Vector2(20, 580)

4. In the LoadContent() method of the Game1 class, initialize the pericles8...