function checkForHits(squares) {

  if (

    (currentSnake[0] + width >= width * width && direction === width) ||

    (currentSnake[0] % width === width - 1 && direction === 1) ||

    (currentSnake[0] % width === 0 && direction === -1) ||

    (currentSnake[0] - width <= 0 && direction === -width) ||

    squares[currentSnake[0] + direction].classList.contains("snake")

  ) {

    return true;

  } else {

    return false;

  }

}