Time for action – drawing the screen – the play screen

1. Update the Draw() method of the Game1 class to add the code to draw the game board after the code that draws the title screen:

   if (gameState == GameStates.Playing)
   {
       spriteBatch.Begin();
   
       spriteBatch.Draw(backgroundScreen,
           new Rectangle(0, 0,
               this.Window.ClientBounds.Width,
               this.Window.ClientBounds.Height),
           Color.White);
   
       for (int x = 0; x < GameBoard.GameBoardWidth; x++)
           for (int y = 0; y < GameBoard.GameBoardHeight; y++)
           {
               int pixelX = (int)gameBoardDisplayOrigin.X + 
                   (x * GamePiece.PieceWidth);
               int pixelY = (int)gameBoardDisplayOrigin.Y + 
                   (y * GamePiece.PieceHeight);
   
               spriteBatch.Draw(
                   playingPieces,
                   new Rectangle(
                     pixelX, 
                     pixelY, 
                     GamePiece.PieceWidth, 
                     GamePiece.PieceHeight),
            ...