import akka.actor._
case class Ping(n:Int)
case class Pong(n:Int)

class Player extends Actor {
  def receive = {

    case Ping(n) =>
      println("Ping")

	  if(n == 1)
	  {
    	println("Kończymy grę")
        context.system.terminate()
   	  }
      else
        sender ! Pong(n - 1)

    case Pong(n) =>
      println("Pong")
      if(n == 1)
	  {
        println("Kończymy grę")
        context.system.terminate()
      }
      else
        sender ! Ping(n - 1)

    case _ => new RuntimeException("Nieobsługiwany komunikat")
  }
}

object Zad1 {
  def main(args:Array[String]) = {
    val system = ActorSystem("System")
    val player1 = system.actorOf(Props[Player])
    val player2 = system.actorOf(Props[Player])
    player1.tell(Ping(10),player2)
  }
}