A Small game used to illustrate basics of Scala Language.

Game.scala

package com.contaazul.api.pub.client

import scala.util.Random

class Character(
  var name: String,
  var lastName: String = "No Name") {
  val location = new Location
  var health = 100
}

class Location {
  var x: Int = 0
  var y: Int = 0
}

trait Runner {
  self: Character =>

  def walk(x: Int) = {
    this.location.x += x
  }
}

trait Jumper {
  self: Character =>

  def jump(height: Int) = {
    this.location.y += height
  }
}

trait Warrior {
  self: Hero =>

  def hit(enemy: Hero) = {
    var damage = measureDamage(enemy)
    enemy.health -= damage
    printDamage(enemy, damage)
    printHealth(enemy)
  }

  def measureDamage(enemy: Hero) =
    weapon.streight

  def printHealth(enemy: Hero) =
    if (enemy.health <= 0)
      println(s"${enemy.name} was killed")

  def printDamage(enemy: Hero, damage: Int) =
    println(s"${enemy.name} was hurted in $damage")
}

abstract class Hero(name: String) extends Character(name)
  with Runner with Jumper with Warrior {
  var weapon: Weapon

  def whoAmI() =
    s"Hello, I'm $name." +
      s"I'm using the weapon ${weapon.name}"

  def whereIAm() = s"I'm ${location.x} from the start point,\n" +
    s"but I'm  ${location.y} meters height."
}

class Weapon(
  var name: String,
  var streight: Int = 1) {}

class MoneyWeapon extends Weapon("Dinheiro", 25)
class AK47Weapon extends Weapon("AK-47", 75)

class TW(name: String = "TW") extends Hero(name) {
  var weapon:Weapon = new AK47Weapon
}

class Laercio extends Hero("Laercio") {
  var weapon:Weapon = new MoneyWeapon
}

class Game {
  var tw: Hero = new TW
  var laercio = new Laercio

  def main(args: Array[String]) {
    while ( !weHaveAWinner )
	  doAttack
	showTheWinner
  }
  
  def weHaveAWinner:Boolean =
    loose( tw ) || loose( laercio )

  def loose( player:Hero ):Boolean
  	= player.health <= 0

  def doAttack() = {
    var r = new Random
    if ( r.nextInt(100) < 50 )
    	tw hit laercio
	else
		laercio hit tw
  }
  
  def showTheWinner() = {
    var player = laercio.health <=0 match {
	    case true => tw
	    case false => laercio
    }
    println( s"${player.name} Win!" )
  }
}

@thiagolenz, pega este joguinho...