Time for action – updating and displaying ScoreZooms

1. Add a Queue object to the Game1 class to hold active ScoreZooms:

   Private ScoreZooms as Queue(Of ScoreZoom) = new Queue(Of ScoreZoom)()

2. Add a new helper method to the Game1 class to update the ScoreZooms queue:

   Private Sub UpdateScoreZooms()
       Dim dequeueCounter as Integer = 0
       For Each zoom as ScoreZoom in ScoreZooms
           Zoom.Update()
           If (zoom.IsCompleted) Then
               dequeueCounter += 1
           End If
       Next
       For d as Integer = 0 to dequeueCounter - 1
           ScoreZooms.Dequeue()
       Next
   End Sub

3. In the Update() method, inside the case section for GameState.Playing, add the call to update any active ScoreZooms. This can be placed right before the case's End Select statement:

   UpdateScoreZooms()

4. Add the following to the CheckScoringChain() method to create a ScoreZoom when the player scores. Add this right after the playerScore is increased:

   ScoreZooms.Enqueue(new ScoreZoom("+" +
       DetermineScore(WaterChain.Count)...