import javax.swing.*;
import java.util.Random;

class GuessGame {
    private double bestScore;
    private Random rnd = new Random();

    public void play(int max) {
        int secret = rnd.nextInt(max);

        int count = 0;
        boolean guessed = false;

        while (!guessed) {
            count++;
            int userInput = getUserInput();

            if (userInput == secret) {
                double score = calcScore(max, count);
                saveResult(score);
                JOptionPane.showMessageDialog(null, "Yohoo, your score: " + score);
                guessed = true;
            } else {

                if (userInput >= secret)
                    JOptionPane.showMessageDialog(null, "Lesser");
                else
                    JOptionPane.showMessageDialog(null, "Greater");
            }

        }
    }

    private int getUserInput() {
        while (true){
            try {
                return Integer.parseInt(JOptionPane.showInputDialog("Guess number"));
            }
            catch (Throwable throwable){
                JOptionPane.showMessageDialog(null, "Oops, pls input number");
            }
        }
    }

    private double calcScore(int max,int count){
        return max / (float)count;
    }

    private void saveResult(double score) {
        bestScore = Math.max(score, bestScore);
    }

    double getBestScore() {
        return bestScore;
    }
}