C Programming

7.13 (Project: Card Shuffling and Dealing) Use the functions developed in Exercise 7.12 to write a program that deals two five-card poker hands, evaluates each hand, and determines which is the better hand.

Below is the function developed in Exercise 7.12

#include #include #include

#define SUITS 4 #define FACES 13 #define CARDS 52

void shuffle(unsigned int deck[][FACES]); void deal(unsigned int deck[][FACES], unsigned int hand[][2], char *suit[], char *face[]); void pair(unsigned int hand[][2], char *suit[], char *face[]); void threeOfKind(unsigned int hand[][2], char *suit[], char *face[]); void fourOfKind(unsigned int hand[][2], char *suit[], char *face[]); void straightHand(unsigned int hand[][2], char *suit[], char *face[]); void flushHand(unsigned int hand[][2], char *suit[], char *face[]); int main() { char *suit[SUITS] = { "Hearts", "Diamonds", "Clubs", "Spades" }; char *face[FACES] = { "Ace", "Deuce", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Jack", "Queen", "King" }; unsigned int deck[SUITS][FACES]; //represents deck of cards unsigned int hand[5][2]; //represents hand size_t row, column; //loop counters //loop through rows of deck for (row = 0; row < SUITS; ++row) { //loop through columns of deck for current row for (column = 0; column < FACES; ++column) { deck[row][column] = 0; // initialize slot of deck to 0 } //end inner for } //End outer for srand(time(NULL)); // seed random number generator //Shuffle the deck and deal a 5-card hand shuffle(deck); deal(deck, hand, suit, face); //determine the hands poker value pair(hand, suit, face); threeOfKind(hand, suit, face); fourOfKind(hand, suit, face); straightHand(hand, suit, face); flushHand(hand, suit, face); }// end function main //shuffles the deck void shuffle(unsigned int deck[][FACES]) { size_t row; //represents suit value of card size_t column; // represents face value of card unsigned int card; // loop counter // for each of the 52 cards, choose a slot of the deck randomly for (card = 1; card <= CARDS; ++card) { do // choose a new random location until unoccupied slot is found { row = rand() % SUITS; // randomly select row column = rand() % FACES; //randomly select column } while (deck[row][column] != 0); //end do ... while //place card number in chosen slot of deck deck[row][column] = card; }// end for }// end function shuffle //deals a poker hand void deal(unsigned int deck[][FACES], unsigned int hand[][2], char *suit[], char *face[]) { unsigned int r = 0; //counter for position in the hand size_t card, row, column; //loop counters puts("The hand is: "); //loop to distribute cards for (card = 1; card < 6; ++card) for (row = 0; row < SUITS; ++row) for (column = 0; column < FACES; ++column) if (deck[row][column] == card) { hand[r][0] = row; hand[r][1] = column; printf("%5s of %-8s ", face[column], suit[row]); ++r; }//end if puts(" "); } //end function deal //determines if there are any pairs in the hand void pair(unsigned int hand[][2], char *suit[], char *face[]) { //counter that records how many cards of each rank are in the hand unsigned int counter[FACES] = { 0 }; size_t r, p; // loop counters //record how many cards of each rank are in the hand for (r = 0; r < 5; ++r) ++counter[hand[r][1]]; //print result if there is a pair for (p = 0; p < FACES; ++p) if (counter[p] == 2) printf("The hand contains a pair of %ss. ", face[p]); }//end function pair //Determine if there is a three of a kind in the hand void threeOfKind(unsigned int hand[][2], char *suit[], char *face[]) { //Counter that records how many cards of each rank are in the hand unsigned int counter[FACES] = { 0 }; size_t r, t; // loop counters //record how many cards of each rank are in the hand for (r = 0; r < 5; ++r) ++counter[hand[r][1]]; //print results if there is a three of a kind for (t = 0; t < FACES; ++t) if (counter[t] == 3) printf("The hand contains three %ss. ", face[t]); } // end function threeOfKind //determines if there is a four of a kind in the hand void fourOfKind(unsigned int hand[][2], char *suit[], char *face[]) { //counter that records how many cards of each rank are in the hand unsigned int counter[FACES] = { 0 }; size_t r, k; // loop counters //record how many cards of each rank are in the hand for (r = 0; r < 5; ++r) ++counter[hand[r][1]]; //print result if there is a pair for (k = 0; k < FACES; ++k) if (counter[k] == 4) printf("The hand contains four %ss. ", face[k]); } // end function fourOfKind // Determines if there is a straight in the hand void straightHand(unsigned int hand[][2], char *suit[], char *face[]) { unsigned int s[5] = { 0 }; //array that holds a copy of the hand unsigned int temp; // temporary integer size_t r, pass, comp; // loop counters //copy column locations to sort for (r = 0; r < 5; ++r) s[r] = hand[r][1]; //bubble sort column locations for (pass = 1; pass < 5; ++pass) for (comp = 0; comp < 4; ++comp) if (s[comp] > s[comp + 1]) { temp = s[comp]; s[comp] = s[comp + 1]; s[comp + 1] = temp; }//end if //check if sorted column are straight if (s[4] - 1 == s[3] && s[3] - 1 == s[2] && s[2] - 1 == s[1] && s[1] - 1 == s[0]) { printf("The hand contains a straight from %s to %s. ", face[s[0]], face[s[4]]); }// end if }//end funtion straightHand //determines if there is a flush in the hand void flushHand(unsigned int hand[][2], char *suit[], char *face[]) { //counter that records how many cards of each suit are in a hand unsigned int count[SUITS] = { 0 }; size_t r, f; // loop counters //record how many cards of each suit are in the hand for (r = 0; r < 5; ++r) ++count[hand[r][0]]; for (f = 0; f < SUITS; ++f) if (count[f] == 5) printf("The hand contains a flush of %ss. ", suit[f]); }// end function flushHand