//  Replace your keyPressed() with this

// ====================================

​

​

​

// Updated keyPresssed() function adding WASD keys for direction

function keyPressed() {

  if (keyCode === UP_ARROW || key === 'w' || key === 'W') {

    goUp();

  } else if (keyCode === DOWN_ARROW || key === 's' || key === 'S') {

    goDown();

  } else if (keyCode === LEFT_ARROW || key === 'a' || key === 'A') {

    goLeft();

  } else if (keyCode === RIGHT_ARROW || key === 'd' || key === 'D') {

    goRight();

  }

}

​