Hanoi in Scala BTW

Hanoi.scala

package com.prodigious.figures

/**
 * @author JVM Group
 */
object Hanoi {

  def solve(discs: Int, initial: Character, aux: Character, goal: Character) : Unit = {
    if (discs > 0) {
      solve(discs - 1, initial, goal, aux)
      println(s"Move disc from $initial to $goal")
      solve(discs - 1, aux, initial, goal)
    }
  }

  def main(args: Array[String]) {
    solve(3, 'A', 'B', 'C')
  }
}