ex5-6.cpp - Example 5-6 Friend to the card and deck classes

// File: ex5-6.cpp - a friend to the card and deck classes

#include <iostream>
#include <cstdlib>	// needed for rand() function
using namespace std;

const char* value_name[13] = {"two","three","four","five","six",
	"seven","eight","nine","ten","jack","queen","king","ace"};

const char* suit_name[4] = {"clubs","diamonds","hearts","spades"};

const int HandSize = 5;
const int DeckSize = 52;

class deck;

class hand
{
  private:
	 int card_no[HandSize];
  public:
	 hand() { }
	 void dealMe(deck&);
	 void print(const deck&) const;
};

class card
{
  private:
	 int value;
	 int suit;
  public:
	 card() { }
	 void assign(int);
	 int get_value(void) const { return value;}
	 int get_suit(void) const { return suit;}
	 void print(void) const;
  friend void hand::print(const deck&) const;
};

void card::assign(int x)
{
  value = x % 13;
  suit = x % 4;
}

void card::print(void) const
{
  cout << value_name[value] << " of " << suit_name[suit] << endl;
}


class deck
{
  friend class hand;
  private:
	 card d[DeckSize];
	 int next_card;
  public:
	 deck(void);
	 void shuffle(void);
	 void deal(int=HandSize);
	 void print(void) const;
};

deck::deck(void)
{
  for (int i = 0; i < DeckSize; i++) d[i].assign(i);
  next_card = 0;
}

void deck::shuffle(void)
{
  int i, k;
  card temp;
  cout << "I am shuffling the deck\n";
  for (i = 0; i < DeckSize; i++)
  {
	 k = rand() % DeckSize;
	 temp = d[i];
	 d[i] = d[k];
	 d[k] = temp;
  }
}

void deck::print(void) const
{
  int i;
  for (i = 0; i < DeckSize; i++) d[i].print();
}

void hand::dealMe(deck& dk)
{
  int i;
  for (i = 0; i < HandSize; i++) card_no[i] = dk.next_card++;
  return;
}

void hand::print(const deck& dk) const
{
  int i;
  cout << "here is your hand:\n";
  for (i = 0; i < HandSize; i++) dk.d[card_no[i]].print();
}

int main (void)
{
  deck poker;
  poker.shuffle();
  poker.print();
  hand Joe;
  hand Mary;
  Joe.dealMe(poker);
  Mary.dealMe(poker);
  cout << "\nOk, Joe ";
  Joe.print(poker);
  cout << "\nOk, Mary ";
  Mary.print(poker);

  return 0;
}



CIS27: Programming in C++    Instructor: Joe Bentley