// GuessNumber.java
// A solution to CS 5JA assignment 5, part 1b, Winter 2009
// updated by cmc, 2/24/09

import java.util.Scanner;

public class GuessNumber {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int choice = 0;
        final int EASY = 5, MEDIUM = 20, DIFFICULT = 1000;

        // show menu
        System.out.println("1. Easy (1-" + EASY + ")\n" +
                           "2. Medium (1-" + MEDIUM + ")\n" +
                           "3. Difficult (1-" + DIFFICULT + ")");

        // get valid choice from user
        do {
            System.out.println("\nEnter 1, 2 or 3: ");
            if (input.hasNextInt())
                choice = input.nextInt();
            else
                input.next();
        }while (choice < 1 || choice > 3);

        // create corresponding random pick object
        int max = EASY;
        if (choice == 2)
            max = MEDIUM;
        else if (choice == 3)
            max = DIFFICULT;
        RandomPick p = new RandomPick(1, max);

        // let the user try to guess the pick
        System.out.println("\nGuess what number I picked.");
        int g = 0;
        while ( !p.goodGuess(g) ) {
            
            if (input.hasNextInt()) {
                g = input.nextInt();
                if (p.highGuess(g))
                    System.out.println("No - too high. Try again.");
                if (p.lowGuess(g))
                    System.out.println("No - too low. Try again.");
            }
            else {
                String s = input.next();
                System.out.println(s + " is not a valid guess.");
            }
        }

        System.out.println("Yes - " + g + " is the number!");
    }
}