Time for action – manipulating the GameBoard

1. Add public methods to the GameBoard class to interact with GamePieces:

   Public Sub RotatePiece(x As Integer, y As Integer,
     clockwise As Boolean)
     boardSquares(x, y).RotatePiece(clockwise)
   End Sub
   
   Public Function GetSourceRect(
     x As Integer, y As Integer) As Rectangle
     Return boardSquares(x, y).GetSourceRectangle()
   End Function
   
   Public Function GetSquare(x As Integer, y As Integer) As String
     Return boardSquares(x, y).PieceType
   End Function
   
   Public Sub SetSquare(x As Integer, y As Integer, pieceType As String)
     boardSquares(x, y).SetPiece(pieceType)
   End Sub
   
   Public Function HasConnector(x As Integer, y As Integer, direction As String) As Boolean
     Return boardSquares(x, y).HasConnector(direction)
   End Function
   
   Public Sub RandomPiece(x As Integer, y As Integer)
     boardSquares(x, y).SetPiece(GamePiece.PieceTypes(
       rand.Next(0, GamePiece.MaxPlayablePieceIndex + 1)))
   End Sub

What just happened?

RotatePiece(), GetSourceRect(), GetSquare(), SetSquare...