public void scoreRound(Decision playerDecision)
{
var opponentDecision = decisionMaker.getNextDecision();
int score = playerDecision.Score(opponentDecision);
if (score == -1)
opponentScore += 1;
else if (score == 1)
playerScore += 1;
ScoreLabel.Content = playerScore + " : " + opponentScore;
HistoryTextBox.Text = "Ty: " + playerDecision.toLocalString() + ", przeciwnik: " + opponentDecision.toLocalString();
decisionMaker.rememberDecision(playerDecision);
}