anchor.diff:    void update(double dt) {
       switch (gameState) {
         case 0:  // Menu
  -        
           // look for input selecting number of cards
  +        // Easy button is between 275 -400, and 360 - 410
  +        // Normal button is between 450 - 575 and 360 - 410
  +        // Hard button is between 625 -750 and 360 - 410
           break;
         case 1:  // Preview
           // Announce READY?
  
positive.code:     context.fillStyle ='grey';
      context.fillRect(0, 0, viewportWidth, viewportHeight);
     
      // draw board
      
      
      
      // draw Hud
  
negative.code:       context.fillText("Play Again?", 550, 75);
      }
    }
    
    void drawButton(x, y, width, height) {
      context.fillRect(x, y, width, height);
      context.beginPath();
      context.moveTo(x,y);
      context.lineTo(x + width, y);
      context.lineTo(x + width, y + height);
      context.lineTo(x, y + height);
      context.lineTo(x, y);
      context.stroke();
    }
  }