/** One interesting thing about implementing this guessing game program
 *  is that nowhere in the code do we ever see what the answer really is.
 *  This "Guess" class creates the number we should guess, and like the
 *  dice game program uses Java's built-in Random number generator.
 *  Note we have 4 attributes to the game, including keeping track of how
 *  we are with the number of guesses.
 */
import java.util.Random;

public class Guess
{
  private int correctAnswer;
  private int numGuesses;
  private int maxGuesses;
  private Random generator;

  /** Create a number we should guess in the range 1-100.
   */
  public Guess()
  {
    generator = new Random();        // initialize random number generator
    correctAnswer = generator.nextInt(100) + 1;
    maxGuesses = 7;
    numGuesses = 0;
  }

  /** Determine if the user's guess is correct.  If it is not, indicate
   *  which way we should go for the next guess.
   */
  public boolean good(int userGuess)
  {
    ++numGuesses;
    if (userGuess == correctAnswer)
      return true;
    else if (userGuess > correctAnswer)
    {
      if (numGuesses < maxGuesses)
      {
        System.out.printf("too big\n");
      }
      return false;
    }
    else
    {
      if (numGuesses < maxGuesses)
      {
        System.out.printf("too small\n");
      }
      return false;
    }
  }

  /** Find out if we have exhausted the number of allowable guesses.
   *  Note that the outcome of ">=" is either true or false.
   */
  public boolean youLose()
  {
    return numGuesses >= maxGuesses;
  }

  /** At end of game, it may be useful to tell the user what the correct    
   *  answer was.
   */
  public int giveAnswer()
  {
    return correctAnswer;
  }
}