// Programmieren 1, Praktikum 5, Aufgabe 1
// Sven Eisenhauer
// 16.12.2004
//
// file: main.cpp
//
// purpose: Shuffle a standard deck of 52 cards and deal them
//

#include <iostream>

using std::cin;
using std::cout;
using std::endl;
using std::left;
using std::right;


#include <iomanip>

using std::setprecision;
using std::setw;

// contains function prototypes for functions srand and rand
#include <cstdlib>
#include <ctime>

const int maxColumns=13;
const int maxRows=4;
const int maxCards=52;

// prototypes
void shuffle( int [][ maxColumns ] );
void deal( const int [][ maxColumns ], const char *[], const char *[] );



int main()
{
   // initialize suit array
   const char *suit[ 4 ] =  
      { "Hearts", "Diamonds", "Clubs", "Spades" };
   
   // initialize face array
   const char *face[ 13 ] = 
      { "Ace", "Deuce", "Three", "Four",
        "Five", "Six", "Seven", "Eight",
        "Nine", "Ten", "Jack", "Queen", "King" };

   // initialize deck array
   int deck[ maxRows ][ maxColumns ] = 
   { 
	   { 1,2,3,4,5,6,7,8,9,10,11,12,13 },
	   { 14,15,16,17,18,19,20,21,22,23,24,25,26 },
	   { 27,28,29,30,31,32,33,34,35,36,37,38,39 },
	   { 40,41,42,43,44,45,46,47,48,49,50,51,52 }
   };

   srand( time( 0 ) );        // seed random number generator

   shuffle( deck );
   deal( deck, face, suit );

   return 0;  // indicates successful termination

} // end main

// shuffle cards in deck
void shuffle( int wDeck[][ 13 ] )
{
	int temp=0;
	int randRow,
		randCol;

	for (int column=0;column<maxColumns;column++) {
		for (int row=0;row<maxRows;row++) {
			randCol=rand()%maxColumns;
			randRow=rand()%maxRows;
			temp=wDeck[row][column];
			wDeck[row][column]=wDeck[randRow][randCol];
			wDeck[randRow][randCol]=temp;
		}
	}
	for (int row=0;row<maxRows;row++) {
		for (column=0;column<maxColumns;column++) {
			cout << setw(4) << wDeck[row][column];
		}
		cout<<endl;
	}


} // end function shuffle

// deal cards in deck
void deal( const int wDeck[][ 13 ], const char *wFace[],
           const char *wSuit[] )
{
	enum found {FALSE,TRUE};
	int row,column;
	found cardFound=FALSE;
    // for each of the 52 cards
	for ( int card = 1; card <= maxCards; card++ ) {
		cardFound=FALSE;
		row=0;
		while ((row<maxRows)&&cardFound==FALSE)
		{
			column=0;
			while((column<maxColumns)&&cardFound==FALSE)
			{
                // if slot contains current card, display card
                if ( wDeck[ row ][ column ] == card ) {
					cout << setw( 5 ) << right << wFace[ column ] 
					   << " of " << setw( 8 ) << left 
					   << wSuit[ row ]
					   << ( card % 2 == 0 ? '\n' : '\t' );
					cardFound=TRUE;
				}
				column++;

            } // end while
			row++;
		 }
	}
} // end function deal