private void fight(int number){
        if (hasEnemyInAreaToFight(number)){
            int numberOfEnemies = numberOfEnemiesToFight(number);
            if (beings.get(number).isZombie() && random() / numberOfEnemies < PROBABILITY_OF_ZOMBIE_TO_DIE) {
                turnToDeadMan(number);
            }else{
                turnIntoZombie(number);
            }
        }
    }