https://github.com/gustavomeloGH/Projeto-Programacao-Funcional-Jogo-caca-palavras-Scala/blob/master/src/br/com/novaroma/project/Game.scala

Game.scala

  //------------ GENERATOR ------------------

  def fill(px: Int, py: Int)(word: String): Unit = {
    var (x, y) = ind(px, py)(word)
    for ((c, i) <- word.zipWithIndex) {
      matrix(x + px * i)(y + py * i) = c
    }
  }

  def ind(px: Int, py: Int)(word: String): (Int, Int) = {
    var x = randomN(0, Math.abs(word.size - matrix.size))
    var y = randomN(0, matrix.size - 1)
    var seq = 0 until word.length
    seq.filter(i => matrix(x + i * px)(y + i * py) != empty).size match {
      case 0 => return (x, y)
      case _ => ind(px, py)(word)
    }
  }

  val fillVert = fill(1, 0) _
  val fillHorinz = fill(0, 1) _
  val fillDiag = fill(1, 1) _
  val fillTrans = fill(1, -1) _