world of problems with poker game

**blight2c** · 04-14-2002

hey all, hope you're doing better than i am today. this program, which i thought would be easy, is giving so many troubles. the thing is, it runs differently every time: sometimes it will work, sometimes not, and sometimes it xrashes and wants to send an error report to ms (but then the debugger stalls and doesn't respond).

it's a simple program that after shuffling and dealing, prints 5 cards and then reports if there is a pair of like face cards. i think the root of the problem starts with the strcpy on line 88.

also, does anyone know how to read these "debug" reports? is there a quick and easy tutorial out there? thanks a lot

[edit code]

**blight2c** · 04-14-2002

ok, i made a little progress: the copied-to array face_card wasn't big enough for the \0 (NULL?). so it doesn't crash now

but, it's not catching all the matches--i'd say about half of them. any ideas? thanks.

new code

Code:

#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <ctime>
#include <cstring>

#define draw 5

using namespace std;


void f_shuffle (int _deck [] [13]);
void f_deal (int _hand [] [13], const int _deck [] [13]);
void f_c_hand( const int _hand [] [13], const char *_face[], const char *_suit[] );
void f_wins (const int _hand [] [13], const char *_face[], const char *_suit[]);
void f_pair (char face_card[][6]);

int main()
{	const char *suit [4]={
							"Hearts", "Diamonds", "Clubs", "Spades"};
	const char *face [13]={
							"Ace", "Deuce", "Three", "Four",
							"Five", "Six", "Seven", "Eight",
							"Nine", "Ten", "Jack", "Queen", "King"};
	int deck [4] [13]={0};
	int hand [4] [13]={0};
	srand (time(0));

	f_shuffle (deck);
	f_deal (hand, deck);
	f_c_hand(hand, face, suit);
	f_wins (hand, face, suit);

	return(0);
}



void f_shuffle (int _deck [] [13])
{	int row, column;
	for ( int card = 1; card <=52; card++)
	{	do
		{	row=rand() %4;
			column=rand() %13;
		}while(_deck [row] [column] != 0);
		_deck [row] [column] = card;
	}
}



void f_deal (int _hand[][13], const int _deck [][13])
{	for (int card=1; card<=draw; card++)
	{	for (int row=0; row<=3; row++)
		{	for (int column=0; column <=12; column++)
			{	if (_deck [row] [column] == card)
				{	_hand [row] [column] = 1;
				}
			}
		}
	}
}



void f_c_hand( const int _hand [] [13], const char *_face[], const char *_suit[] )
{	cout<<"Your Hand: "<<endl<<endl;
	for (int row=0; row<=3; row++)
	{	for (int column=0; column <=12; column++)
		{	if (_hand [row] [column] == 1)
			{	cout<<setw(5)<<setiosflags(ios::right)
					<<_face[column]
					<<" of "<<_suit[row]<<endl;
			}
		}
	}
}


void f_wins (const int _hand [][13], const char *_face[], const char *_suit[])
{	int counter=0; 
	char face_card [5][6];
	char suit_card [5][8]; 
	for (int column=0; column<13; column++)
	{	for (int row=0; row<4; row++)
		{	if (_hand [row] [column] ==1)
			{	counter++;
				strcpy(face_card[counter], _face[column]);
				strcpy(suit_card[counter], _suit[row]);
			}
		}
	}f_pair(face_card);
	
}



void f_pair (char face_card[5][6])
{	for (int i=0; i<draw; i++)
	{	for (int j=i+1; j<draw-1; ++j)
		{	if (strcmp(face_card[i], face_card[j])==0)
			{	cout<<"you have a match"<<endl;// :confused:
				cout<<face_card[i]<<endl<<endl;
			}}}}

**blight2c** · 04-14-2002

. . . ok, i've isolated the problem to this little bit of code. and it only seems to happen in the first two loops through the if statment. anyone?

Code:

void f_wins (const int _hand [][13], const char *_face[], const char *_suit[])
{	int counter=0; 
	char face_card [5][6];
	char suit_card [5][8]; 
	for (int column=0; column<13; column++)
	{	for (int row=0; row<4; row++)
		{	if (_hand [row] [column] ==1)
			{	counter++;
				strcpy(face_card[counter], _face[column]);
				strcpy(suit_card[counter], _suit[row]);
			}
		}
	}

**Uraldor** · 04-14-2002

Here's something i whipped up for ya during lunch... it compiles... not sure if it'll help you in your cause...

Code:

#include <time.h>
#include <stdlib.h>
#include <iostream>
using namespace std;

typedef enum Suit
{
    HEARTS,
    DIAMONDS,
    CLUBS,
    SPADES,
    NUM_SUITS
};

const char* SuitStrings[NUM_SUITS] =
{
    "Hearts", "Diamonds", "Clubs", "Spades"
};

typedef enum Value
{
    ACE,
    DEUCE,
    THREE,
    FOUR,
    FIVE,
    SIX,
    SEVEN,
    EIGHT,
    NINE,
    TEN,
    JACK,
    QUEEN,
    KING,
    NUM_VALUES
};

const char* ValueStrings[NUM_VALUES] =
{
    "Ace", "Deuce", "Three", "Four",
    "Five", "Six", "Seven", "Eight",
    "Nine", "Ten", "Jack", "Queen",
    "King"
};

typedef struct _Card
{
    Value value;
    Suit suit;
} Card;

static const int NUM_CARDS = NUM_VALUES * NUM_SUITS;

static const int CARDS_PER_HAND = 5;

int CreateCards(Card* cards)
{
    int count = 0;

    for(int i = ACE; i < NUM_VALUES; i++)
    {
        for(int j = HEARTS; j < NUM_SUITS; j++)
        {
            cards[count].suit = (Suit)j;
            cards[count++].value = (Value)i;
        }
    }

    return(1);
}

int SwapCards(Card* card1, Card* card2)
{
    Card temp;

    temp.suit = card1->suit;
    temp.value = card1->value;

    card1->suit = card2->suit;
    card1->value = card2->value;

    card2->suit = temp.suit;
    card2->value = temp.value;

    return(1);
}

int ShuffleCards(Card* cards)
{
    srand(time(NULL));

    for(int i = 0; i < NUM_CARDS; i++)
    {
        SwapCards(&cards[i], &cards[rand() % NUM_CARDS]);
    }

    return(1);
}

int DealCards(Card* cards, Card* hand[CARDS_PER_HAND])
{
    int flags[NUM_CARDS];
    memset(flags, 0, sizeof(flags));

    for(int i = 0; i < CARDS_PER_HAND; i++)
    {
        int card = rand() % NUM_CARDS;
        if(flags[card])
        {
            i--;
        }
        else
        {
            hand[i] = &cards[card];
            flags[card]++;
        }
    }

    return(1);
}

int ShowFacePairs(Card* hand[CARDS_PER_HAND])
{
    for(int i = 0; i < CARDS_PER_HAND; i++)
    {
        for(int j = i + 1; j < CARDS_PER_HAND; j++)
        {
            if(hand[i]->value == hand[j]->value)
            {
                cout << "You have a pair of " << ValueStrings[hand[i]->value] << "s\n";
            }
        }
    }

    return(1);
}

int ShowCards(Card* hand[CARDS_PER_HAND])
{
    for(int i = 0; i < CARDS_PER_HAND; i++)
    {
        cout << "Card " << i + 1 << " is the ";
        cout << ValueStrings[hand[i]->value] << " of ";
        cout << SuitStrings[hand[i]->suit] << ".\n";
    }

    return(1);
}

int main(void)
{
    Card cards[NUM_CARDS];
    Card *hand[CARDS_PER_HAND];

    CreateCards(cards);
    ShuffleCards(cards);
    DealCards(cards, hand);
    ShowCards(hand);
    ShowFacePairs(hand);

    return(1);
}

good luck
U.

**blight2c** · 04-15-2002

#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <ctime>
#include <cstring>

#define draw 5

using namespace std;

void f_shuffle (int _deck [] [13]);
void f_deal (int _hand [] [13], const int _deck [] [13]);
void f_c_hand( const int _hand [] [13], const char *_face[], const char *_suit[] );
void f_wins (const int _hand [] [13], const char *_face[], const char *_suit[]);
void f_pair (char face_card[][6]);

int main()
{ const char *suit [4]={
"Hearts", "Diamonds", "Clubs", "Spades"};
const char *face [13]={
"Ace", "Deuce", "Three", "Four",
"Five", "Six", "Seven", "Eight",
"Nine", "Ten", "Jack", "Queen", "King"};
int deck [4] [13]={0};
int hand [4] [13]={0};
srand (time(0));

f_shuffle (deck);
f_deal (hand, deck);
f_c_hand(hand, face, suit);
f_wins (hand, face, suit);

return(0);
}

void f_shuffle (int _deck [] [13])
{ int row, column;
for ( int card = 1; card <=52; card++)
{ do
{ row=rand() %4;
column=rand() %13;
}while(_deck [row] [column] != 0);
_deck [row] [column] = card;
}
}

void f_deal (int _hand[][13], const int _deck [][13])
{ for (int card=1; card<=draw; card++)
{ for (int row=0; row<=3; row++)
{ for (int column=0; column <=12; column++)
{ if (_deck [row] [column] == card)
{ _hand [row] [column] = 1;
}
}
}
}
}

void f_c_hand( const int _hand [] [13], const char *_face[], const char *_suit[] )
{ cout<<"Your Hand: "<<endl<<endl;
for (int row=0; row<=3; row++)
{ for (int column=0; column <=12; column++)
{ if (_hand [row] [column] == 1)
{ cout<<setw(5)<<setiosflags(ios::right)
<<_face[column]
<<" of "<<_suit[row]<<endl;

}
}
}
}

void f_wins (const int _hand [][13], const char *_face[], const char *_suit[])
{ int counter=0;
char face_card [5][6];
char suit_card [5][9];
for (int row=0; row<4; row++)
{ for (int column=0; column<13; column++)
{ if (_hand [row] [column] ==1 && counter<draw)
{ counter++;
strcpy(face_card[counter], _face[column]);
strcpy(suit_card[counter], _suit[row]);
}
}
}
cout<<"************"<<endl;
for (int y=0; y<draw; y++)
{ cout<<face_card[y]<<endl;
}
cout<<"************"<<endl;
f_pair(face_card);

}

void f_pair (char face_card[6][6])
{ int x=0;
for (int i=0; i<draw; i++)
{ for (int j=i+1; j<draw-1; j++)
{ x++;
if (strcmp(face_card[i], face_card[j])==0)
{ cout<<"you have a match"<<endl;//

cout<<face_card[i]<<endl<<endl;
}
else
cout<<"nothing "<<x<<endl;
}}}

**Uraldor** · 04-21-2002

Code:

counter++;
strcpy(face_card[counter], _face[column]);
strcpy(suit_card[counter], _suit[row]);

should be:

Code:

strcpy(face_card[counter], _face[column]);
strcpy(suit_card[counter], _suit[row]);
counter++;

good luck
U.

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