//
// File: guesgame.cpp.  Method definitions file for 
// GuessingGame class
//

#include "guesgame.h"

//
// Constructor to seed the random number generator
// Pre:  none
// Post: The random number generator has been seeded.
//

GuessingGame::GuessingGame()
{
   SeedRand();
}

//
// Function to allow the user to play the game
// Pre:  Constant positive integer HIGH has a value.
// Post: Instructions have been displayed.
//       The target has been guessed by the user.
//

void GuessingGame::PlayGame()
{
   int guess;                    // user's guess
   boolean_t GuessAgain = TRUE;  // TRUE if user needs to guess
       
   cout << "Welcome to the GUESSING GAME!\n\n";
   cout << "I'm thinking of a number between 0 and "
        << HIGH - 1 << ".\n";
   cout << "Enter your guess.\n";
   cout << "I'll tell you whether to guess higher or lower.\n\n";
   target = random_int(HIGH);
   do
   {
      guess = ReadGuess();
      if (guess < target)
         cout << "Guess higher\n\n";
      else if (guess > target)
         cout << "Guess lower\n\n";
      else
      {
         cout << "Congratulations! You guessed it!\n";
         GuessAgain = FALSE;
      }
   }
   while (GuessAgain);   // continue while GuessAgain is TRUE
}

//
// Function to prompt for and read an integer to return to main
// Pre:  none
// Post: The user's guess has been returned.
//

int GuessingGame::ReadGuess(void)
{
   int guess;   // user's guess

   cout << "Enter a guess: ";
   cin  >> guess;
   return guess;
}