Craps Game - Printable Version

Code:
/* Craps game: craps.c */

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

// Enumeration constants for game status
enum Status { CONTINUE, WIN, LOOSE } ;

int diceRoll(void); // Prototype for function

// Function main begins program execution
int main(void)
{
	char buff[10];
	int sum; 
	int points; 
	int bank = 1000; 
	int bet; 
	
	enum Status gameStatus; // CONTINUE, WIN, LOOSE
	
	// Random number generator 
	srand(time(NULL));
	printf("Craps is a casino game whereby the player bets on the outcome of dice rolls.\n");
	printf("There are two ways to win the game, rolling a 7 or 11 on the first roll, or\n");
	printf("if you don't get either of these the total value of the dice becomes your\n");
	printf("score and the aim then is to match this on a subsequent roll.\n\n");
	printf("Beware however as there are also ways to loose the game.\n");
	printf("If you are unlucky enough to roll a 2, 3 or 12 on your first roll or roll\n");
	printf("a 7 thereafter you will loose and the house will take your stake.\n\nThe game will end when you run out of money.\n\n");
	
	while (bank > 0) {
		printf("Balance: $%d\nDealer: How much do you want to bet\nYou: $", bank);
		if (fgets(buff, sizeof(buff), stdin) !=NULL) {
				bet = atoi(buff);
			}
		
		while (bet > bank || bet <= 0) {
			if (bet > bank) {
			    printf("Dealer: Your credit cards no good here! how much do you want to bet\nYou: $");
		    }
		    if (bet <= 0) {
				printf("Dealer: It's only pretend money you know, how about a real bet?\nYou: $");
			}
			if (fgets(buff, sizeof(buff), stdin) !=NULL) {
				bet = atoi(buff);
			}
		}
		
	
	    sum = diceRoll(); // First roll
	
	    // Determine game status
	    switch(sum) {
		
		    // Win on first roll
		    case 7:
		        printf("Seven out\n");
		        gameStatus = WIN;
		        break;
		    case 11:
		        printf("Yo-leven\n");
		        gameStatus = WIN;
		        break;
		    
		    // Loose on first roll 
		    case 2:
		        printf("Snake eyes\n");
		        gameStatus = LOOSE;
		        break;
		    case 3:
		        printf("Ace Deuce\n");
		        gameStatus = LOOSE;
		        break;
		    case 12:
		        printf("Boxcars\n");
		        gameStatus = LOOSE;
		        break;
		    
		    // Remember points
		    default:
		        gameStatus = CONTINUE;
		        points = sum;
		        printf("Points are %d\n", points);
		        break;
		    } 
		
		    // While game is not complete
		    while (gameStatus == CONTINUE) {
			    sum = diceRoll(); // Roll again
			
			    // Determine game status 
			    if (sum == points) { // Win by making point
				    gameStatus = WIN; // Game over player wins
			    } 
			    else {
				    if (sum == 7) { // Loose by rolling a 7
					    gameStatus = LOOSE; // Game over player losses
				    } 
			    } 
		    } 
		
		    // Display won or lost message
		    if (gameStatus == WIN) {
			    printf("Dealer: You win $%d, congratulations\n", bet);
			    bank += bet;
		    } // End if
		
		    else { // Player lost
			    printf("Dealer: Sorry you loose $%d, better luck next time!\n", bet);
			    bank -= bet;
		    } 
		} 
		printf("Dealer: Oh you ran out of money, looks like the house wins again!\n");
		return 0; // Indicate successful terminiation
	} // End fuction main
	
	// roll the dice and calculate the sum, displaying the results
	int diceRoll(void)
	{
		int die1; 
		int die2; 
		int workSum; 
		
		// Randomize value of dice 1-6
		die1 = 1 + (rand() % 6); 
		die2 = 1 + (rand() % 6); 
		workSum = die1 + die2; 
		
		// Display the results 
		printf("Player rolled %d + %d = %d\n", die1, die2, workSum);
		return workSum; 
	} // End function diceRoll