protected String chooseRandomEnemys(){
  final List<String> enemyList=new LinkedList<String>(enemyForces.keySet());
  final int enemySize=enemyList.size();
  final int position=Rand.rand(enemySize);
  return enemyList.get(position);
}

protected String chooseRandomEnemys ( ) { final List < String > enemyList = new LinkedList < String > ( enemyForces . keySet ( ) ) ; final int enemySize = enemyList . size ( ) ; final int position = Rand . rand ( enemySize ) ; return enemyList . get ( position ) ; }
function for choosing random enemy from map
