Gfrktyl

My coding teacher gave us this code and told us to add a betting system.
specifically:

"Add a betting system. The user should start out with $200 and be
able to bet any amount as long as they have money to bet.
EX: You have $200
Place your bet: $50 ...after a few hands
You have $30
Place your bet: $40
Sorry ... you don't have enough to place this bet
You have $75
Do you want to bet or quit?
Quit when the user has no money left, or wants to stop."

Here is the the code:

#include <stdio.h>

#include <time.h>

#include <ctype.h>

#include <stdlib.h>



#define BELL 'a'

#define DEALER 0

#define PLAYER 1

#define SCREENLINECOUNT 25





#define ACELOW 0

#define ACEHIGH 1



int askedForName = 0;



void dispTitle(void);

void initCardsScreen(int cards[52], int playerPoints[2], int dealerPoints[2],

int total[2], int *numbCards);

int dealCard(int *numCards, int cards[52]);

void dispCard(int cardDrawn, int points[2]);

void totalIt(int points[2], int total[2], int who);

void dealerGetsCard(int *numCards, int cards[52], int dealerPoints[2]);

void playerGetsCard(int *numCards, int cards[52], int playerPoints[2]);

char getAns(char mesg);

void findWinner(int total[2]);



int main(void) {

    int numCards; /* Equals 52 at the beginning of each game. */

    int cards[52], playerPoints[2], dealerPoints[2], total[2];

    char ans; /* for user's Hit/Stand or Yes/No response. */



    do {

        initCardsScreen(cards, playerPoints, dealerPoints, total, &numCards);

        dealerGetsCard(&numCards, cards, dealerPoints);

        printf("n");  /*  Prints a blank line */

        playerGetsCard(&numCards, cards, playerPoints);

        playerGetsCard(&numCards, cards, playerPoints);



        do {

            ans = getAns("Hit or stand (H/S)? ");

            if (ans == 'H') {

                playerGetsCard(&numCards, cards, playerPoints);

            }

        } while (ans != 'S');





        /* Generate player's total score once the player stands. */

        totalIt(playerPoints, total, PLAYER);

        do {

            dealerGetsCard(&numCards, cards, dealerPoints);

        } while (dealerPoints[ACEHIGH] < 17);



        /* Dealer has to stand at 17. */

        totalIt(dealerPoints, total, DEALER);



        /* Calculate the dealer's hand total. */

        findWinner(total);

        ans = getAns("nPlay again (Y/N)? ");



    } while (ans == 'Y');



    return;

}









void initCardsScreen(int cards[52], int playerPoints[2], int dealerPoints[2],

    int total[2], int *numCards) {



    int sub, val = 1;       /* This function's Work variables */

    char firstName[15];     /* Holds the user's first name. */

    *numCards = 52;         /* Holds running total of number of cards */



    for (sub = 0; sub <= 51; sub++) {

        val = (val == 14) ? 1 : val; /* When val hits 14, reset to 1. */

        cards[sub] = val;

        val++;

    }



    for (sub = 0; sub <= 1; sub++) {

        /* Reset all the points counters. */

        playerPoints[sub] = dealerPoints[sub] = total[sub] = 0;

    }



    dispTitle();



    /* Only ask for the player's name once per session. */

    if (askedForName == 0) {

        printf("nWhat is your first name? ");

        scanf(" %s", firstName);            /* Buffer overflow attack possible here. */

        askedForName = 1;                   /* Only ask once. */

        printf("Ok, %s, get ready for some casino action!nn", firstName);

        getchar();                          /* Discards a newline. Text claims one can ignore the */

        /* compiler warning generated.  We'll see. */

    }

    return;

}



void playerGetsCard(int *numCards, int cards[52], int playerPoints[2]) {

    int newCard;



    newCard = dealCard(numCards, cards);

    printf("You draw: ");

    dispCard(newCard, playerPoints);

}



void dealerGetsCard(int *numCards, int cards[52], int dealerPoints[2]) {

    int newCard;



    newCard = dealCard(numCards, cards);

    printf("The dealer draws: ");

    dispCard(newCard, dealerPoints);

}



int dealCard(int *numCards, int cards[52]) {

    int cardDrawn, subDraw;

    time_t t;                           /* Gets time for a random value */



    srand(time(&t));                    /* Seeds the random-number generator. */

    subDraw = (rand() % (*numCards));   /* From 0 to numCards */

    cardDrawn = cards[subDraw];

    cards[subDraw] = cards[*numCards - 1];

    (*numCards)--;

    return cardDrawn;

}



void dispCard(int cardDrawn, int points[2]) {

    switch (cardDrawn) {



    case(11) : printf("%sn", "Jack");

        points[ACELOW] += 10;

        points[ACEHIGH] += 10;

        break;

    case(12) : printf("%sn", "Queen");

        points[ACELOW] += 10;

        points[ACEHIGH] += 10;

        break;

    case(13) : printf("%sn", "King");

        points[ACELOW] += 10;

        points[ACEHIGH] += 10;

        break;

    default: points[ACELOW] += cardDrawn;

        if (cardDrawn == 1) {

            printf("%sn", "Ace");

            points[ACEHIGH] += 11;

        }

        else {

            points[ACEHIGH] += cardDrawn;

            printf("%dn", cardDrawn);

        }

    }

    return;

}



void totalIt(int points[2], int total[2], int who) {



    if ((points[ACELOW] == points[ACEHIGH]) || (points[ACEHIGH] > 21)) {

        total[who] = points[ACELOW]; /* Treat all Aces as 1. */

    }

    else {

        total[who] = points[ACEHIGH]; /* Keeps all Aces as 11. */

    }



    if (who == PLAYER) { /* Determines the message printed. */

        printf("You have a total of %dnn", total[PLAYER]);

    }

    else {

        printf("The house stands with a total of %dnn", total[DEALER]);

    }

    return;

}



void findWinner(int total[2]) {

    if (total[DEALER] == 21) {

        printf("The house wins.n");

        return;

    }

    if ((total[DEALER] > 21) && (total[PLAYER] > 21)) {

        printf("Nobody wins.n");

        return;

    }

    if ((total[DEALER] >= total[PLAYER]) && (total[DEALER] < 21)) {

        printf("The house wins.n");

        return;

    }

    if ((total[PLAYER] > 21) && (total[DEALER] < 21)) {

        printf("The house wins.n");

        return;

    }

    printf("%s%c", "You win!n", BELL);

    return;

}



char getAns(char mesg) {

    char ans;



    printf("%s", mesg); /* Prints the prompt message passed. */

    ans = getchar();

    getchar(); /* Discards newline. Claims we can ignore compiler warning here. */

    return toupper(ans);

}



void dispTitle(void) {

    int i = 0;



    while (i < SCREENLINECOUNT) {

        printf("n"); /* Clears screen by printing a number of blank lines. */

        i++;

    }



    printf("    .------..------..------..------..------..------..------..------..------.  n");

    printf("    |B.--. ||L.--. ||A.--. ||C.--. ||K.--. ||J.--. ||A.--. ||C.--. ||K.--. |  n");

    printf("    | :(): || :/:  || (/)  || :/:  || :/:  || :(): || (/)  || :/:  || :/:  |  n");

    printf("    | ()() || (__) || :/:  || :/:  || :/:  || ()() || :/:  || :/:  || :/:  |  n");

    printf("    | '--'B|| '--'L|| '--'A|| '--'C|| '--'K|| '--'J|| '--'A|| '--'C|| '--'K|  n");

    printf("    `------'`------'`------'`------'`------'`------'`------'`------'`------'  n");



    printf("nnStep right up to the Blackjack tablesnn");

    return;

}