//there is defined Player valiables - 'HP', 'ATK','DEF' etc..
 void FightAction(int ATKf, int DEFf, TYPEf)
        {
            Random generator = new Random();
            int PlayerHP = Convert.ToInt32(HP); // 100
            int FighterHP = HPf; // 20

            fight:

            int PlayerATK = ATK + generator.Next(0, 3);
            int PlayerDEF = DEF + generator.Next(0, 3);
            int FighterATK = ATKf + generator.Next(0, 3);
            int FighterDEF = DEFf + generator.Next(0, 3);

            txt_CalcPlayer.Content = NAME + "\nHP: " + PlayerHP + "\nÚtok: " + PlayerATK + "\nObrana: " + PlayerDEF;
            txt_CalcEnemy.Content = NAMEf + "\n" + FighterHP + " :HP\n" + FighterATK + " :Útok\n" + FighterDEF + " :Obrana";

            int PlayerAttack = PlayerATK - FighterDEF; //(5-7) - (2-4) = 5
            int FighterAttack = FighterATK - PlayerDEF; //(5-7) - (2-4) = 7



            if (FighterAttack <= 0) { FighterAttack = 0; }
            if (PlayerAttack <= 0) { PlayerAttack = 0; }

            PlayerHP = (PlayerHP - FighterAttack);
            FighterHP = (FighterHP - PlayerAttack);

            HP = PlayerHP;
            HPControl();



            if (FighterHP < 0) { FighterHP = 0; }
            if (PlayerHP < 0) { PlayerHP = 0; }

            if (isAlive == true)
            {
                txt_CalcPlayer.Content = NAME + "\nHP: " + PlayerHP + "\nÚtok: " + PlayerATK + "\nObrana: " + PlayerDEF;
                txt_CalcEnemy.Content = NAMEf + "\n" + FighterHP + " :HP\n" + FighterATK + " :Útok\n" + FighterDEF + " :Obrana";
                while (!gotResponse)
                {
                    btn_FightRound.Visibility = Visibility.Visible;
                    btn_FightRound.Content = "FIGHT";
                }
                btn_FightRound.Visibility = Visibility.Hidden;
                gotResponse = false;
                goto fight;
            }
private void btn_FightRound_Click(object sender, RoutedEventArgs e)
        {
            gotResponse = true;
        }