Generating a game board with squares in a rectangle

I am trying to generate a game board (similar to a Monopoly board). I am new to Scala and am thinking that there may be a better way to do this. But improvements to the code are also welcome.

class BoardGenerator(squaresPerPlayer: Int, numberOfPlayers: Int) {
  val directionTuples = Array((1, 0), (0, 1), (-1, 0), (0, -1))

  def generate: List[Square] = {
    val squaresPerSide = squaresPerPlayer * numberOfPlayers / 4

    def generateBoard(squaresLeft: Int, direction: Int, x: Int, y: Int): List[Square] = {
      if (direction == 4)
        Nil
      else if (squaresLeft > 1)
        Square(x, y) :: generateBoard(squaresLeft - 1, direction,
          x + directionTuples(direction)._1, y + directionTuples(direction)._2)
      else
        Square(x, y) :: generateBoard(squaresPerSide, direction + 1,
          x + directionTuples(direction)._1, y + directionTuples(direction)._2)
    }
    generateBoard(squaresPerSide, 0, 0, 0)
  }
}

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directions as a variable name instead of directionTuples.

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Instead of having a bunch of ifs in generateBoard, use pattern matching.

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Instead of passing x: Int, y: Int in generateBoard, just pass a tuple which you could call currentPos. You could define a function to add the direction tuple with the currentPos tuple instead of typing x + directionTuples(direction)._1, y + directionTuples(direction)._2 twice. (There might actually be a very easy way to add (Int, Int) + (Int, Int) in Scala, but I can't think of it right now.)

StackExchange Code Review Q#73593, answer score: 2