// Fig. 22.3: DeckOfCards.cpp
// Member-function definitions for class DeckOfCards that simulates
// the shuffling and dealing of a deck of playing cards.
#include <iostream>
using std::cout;
using std::left;
using std::right;

#include <iomanip>
using std::setw;

#include <cstdlib> // prototypes for rand and srand
using std::rand;
using std::srand;

#include <ctime> // prototype for time
using std::time;

#include "DeckOfCards.h" // DeckOfCards class definition

// no-argument DeckOfCards constructor intializes deck
DeckOfCards::DeckOfCards()
{
   // initialize suit array
   static char *suit[ 4 ] = 
      { "Hearts", "Diamonds", "Clubs", "Spades" };

   // initialize face array
   static char *face[ 13 ] = 
      { "Ace", "Deuce", "Three", "Four", "Five", "Six", "Seven", 
      "Eight", "Nine", "Ten", "Jack", "Queen", "King" };

   // set values for deck of 52 Cards
   for ( int i = 0; i < 52; i++ ) 
   {
      deck[ i ].face = face[ i % 13 ];
      deck[ i ].suit = suit[ i / 13 ];
   } // end for
   
   srand( time( 0 ) ); // seed random number generator
} // end no-argument DeckOfCards constructor

// shuffle cards in deck
void DeckOfCards::shuffle()
{
   // shuffle cards randomly
   for ( int i = 0; i < 52; i++ ) 
   {
      int j = rand() % 52;
      Card temp = deck[ i ];
      deck[ i ] = deck[ j ];
      deck[ j ] = temp;
   } // end for
} // end function shuffle

// deal cards in deck
void DeckOfCards::deal()
{
   // display each card’s face and suit
   for ( int i = 0; i < 52; i++ )
      cout << right << setw( 5 ) << deck[ i ].face << " of " 
         << left << setw( 8 ) << deck[ i ].suit 
         << ( ( i + 1 ) % 2 ? '\t' : '\n' );
} // end function deal



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