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import scala.io.StdIn | |
import scala.util.Random | |
import scala.util.Try | |
/** | |
* @author pmucha | |
*/ | |
object rps extends App { | |
def k[A](x: A)(f: A => Unit): A = { f(x); x } // kestrel combinator | |
object Weapon extends Enumeration{ | |
type WeaponType = Value | |
val ROCK, PAPER, SCISSOR, LIZARD, SPOCK = Value | |
} | |
def chooseRandomWeapon(name:String) = { | |
k(Weapon(Random.nextInt(Weapon.maxId)))(w => println(s"$name chose $w")) | |
} | |
def chooseWeapon(name:String): Weapon.WeaponType = { | |
println("choose weapon: " + Weapon.values.map(w => s"(${w.id}) $w").mkString(", ")) | |
return Try(k(Weapon(StdIn.readInt()))(w => println(s"$name chose $w"))).getOrElse(chooseWeapon(name)) | |
} | |
def play(w1:Weapon.WeaponType, w2:Weapon.WeaponType) = { | |
val result = (Weapon.maxId + w1.id - w2.id) % Weapon.maxId | |
val resultStr = List("Tie","P2 Won","P1 Won")(if (result == 0) 0 else (result%2 +1)) | |
println(resultStr) | |
} | |
if (args contains "human") | |
play(chooseWeapon("Player"), chooseRandomWeapon("Computer")) | |
else | |
play(chooseRandomWeapon("Computer1"), chooseRandomWeapon("Computer2")) | |
} |
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