Question

Write a C++ program to play the dice game "Craps". Craps is one of the most popular games of chance and is played in casinos and back alleys throughout the world. The rules of the game are straightforward:

A player rolls two dice. Each die has six faces. These faces contain 1, 2, 3, 4, 5, and 6 spots. After the dice have come to rest, the sum of the spots on the two upward faces is calculated. If the sum is 7 or 11 on the first throw, the player wins. If the sum is 2, 3, or 12 on the first throw (called "craps"), the player loses (i.e. the "house" wins). If the sum is 4, 5, 6, 8, 9, or 10 on the first throw, then the sum becomes the player's "point." To win, you must continue rolling the dice until you "make your point." The player loses by rolling a 7 before making the point.

At a minimum, your solution must contain the functions below.

• void displayGameRules()

  • Open rules.txt file and read the rules from the file.
  • Display the rules to the screen.
  • Close the file
  • NOTE: Using Notepad, create a rules.txt file within your project folder and copy and paste the rules inside the file.

• int rollOneDice()

  • NOTE: This function simulates rolling one dice
  • Generate random integer number from 1 to 6
  • return the random number

• int rollTwoDice()

  • NOTE: This function simulates rolling two dice
  • Calls rollOneDice() function twice to get two random values
  • Print to the console "Sum: 6 (Die1: 4 Die2: 2)" where 4 is the value of the first dice and 2 is the value of the second dice and 6 is the sum of both dice.
  • return the sum.

Write a program that implements craps according to the above rules. Additionally:

• When the program first begins, show the user the rules of Craps.
• Before each initial throw of the dice, prompt the user to ask him/her to keep playing or quit. Gameplay ends when the user chooses to quit or runs out of money.
• Your program should allow for wagering before each roll. This means that you need to prompt the user for an initial bank balance from which wagers will be added or subtracted.
  • Validate the initial bank balance entered by the user greater than zero. If the initial bank balance is not greater than zero, then inform the user and re-prompt.
• Before each roll prompt the user for a wager. This includes rolls when the user is trying to make their point. Wagers must be less than or equal to the available bank balance.
  • The available bank balance is based on the accumulation of the previous wagers this game.
• Once a game is lost or won, the bank balance should be adjusted.
• Additional wagering details include:
  • Require the user to enter a non-zero wager for the first roll. Allow the user to enter a wager of 0 for subsequent “point” rolls.
  • Validate that the user’s wager is within the limits of the player's available balance. If the wager exceeds the player's available balance, then inform the user and re-prompt.

Answer 1

Screenshot

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Program

//Header files
#include <iostream>
#include<string>
#include<fstream>
using namespace std;

//Function prototypes
void displayGameRules();
int rollOneDice();
int rollTwoDice();
bool playAgain();
bool makePoint(int&,int&);
bool play(int&,const int);
int main()
{
   srand(0);
   int money,point;
    //Call function to display game rules
   displayGameRules();
   //Ask user if they want to play
   bool ch = playAgain();
   //If yes then play
   if (ch) {
       //Function play first round to generate meke point
       if(makePoint(money,point)) {
           //Play again question
           ch = playAgain();
           //If yes
           while (ch && money>0) {
               //Next round of play
               bool playGame = play(money, point);
               //If not loss
               if (playGame) {
                   ch = playAgain();
               }
               //Otherwise exit
               else {
                   break;
               }
           }
       }
   }
   cout << "\nGood Bye!!!" << endl;
}
//Function to display the rules of the game
void displayGameRules() {
   string line;
   ifstream in("rules.txt");
   if (!in) {
       cout << "File not found!!" << endl;
       exit(0);
   }
   cout << "Rule of the game :-" << endl;
   while (!in.eof()) {
       getline(in, line);
       cout << line << endl;;
   }
   cout << endl;
   in.close();
}
//Function to roll a dice and get face of the dice
int rollOneDice() {
   return rand() % 6 + 1;
}
//Function to roll 2 dice and return sum
int rollTwoDice() {
   return rollOneDice() + rollOneDice();
}
//Function to prompt for play repetition
bool playAgain() {
   char ch;
   //Prompt for play repetition
   cout << "Do you want to play or quit(y/n): ";
   cin >> ch;
   while (toupper(ch) != 'Y' && toupper(ch) != 'N') {
       cout << "Error!!Choice should be y/n" << endl;
       cout << "Do you want to play or quit(y/n): ";
       cin >> ch;
   }
   if (toupper(ch) == 'Y') {
       return true;
   }
   return false;
}
//Function to make player point
bool makePoint(int& money,int& point) {
   int wager;
   cout << "Enter your initial balance: ";
   cin >> money;
   while (money <= 0) {
       cout << "Initial balance must be positive!!" << endl;
       cout << "Enter your initial balance: ";
       cin >> money;
   }
   cout << "Enter wager amount: ";
   cin >> wager;
   while (wager == 0 || wager > money) {
       cout << "Wager cannot be 0 and greater than money" << endl;;
       cout << "Enter wager amount: ";
       cin >> wager;
   }
   int sum = rollTwoDice();
   cout << "Dice rolled = " << sum << endl;
   if (sum == 7 || sum == 11) {
       money += wager;
       cout << "You Win!!! and earn money "<<money << endl;
   }
   else if (sum == 2 || sum == 3 or sum == 12) {
       money -= wager;
       cout << "You Loss!!! and lose your wager amount, so money = "<<money << endl;
   }
   else {
       point = sum;
       return true;
   }
   return false;
}
//Function to paly game until win or money reach 0
bool play(int& money,const int point) {
   int wager;
   cout << "Enter wager amount: ";
   cin >> wager;
   while (wager > money) {
       cout << "Wager should not be greater than money your actual balance is "<<money << endl;;
       cout << "Enter wager amount: ";
       cin >> wager;
   }
   int sum = rollTwoDice();
   cout << "Dice rolled = " << sum << endl;
   if (sum == point) {
       money += wager;
       cout << "You Win!!! and earn money " << money << endl;
   }
   else if (sum == 7 ) {
       money -= wager;
       cout << "You Loss!!! and lose your wager amount, so money = " << money << endl;
   }
   else {
       money -= wager;
       return true;
   }
   return false;
}

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Output

Rule of the game :-
* A player rolls two dice.
* Each die has six faces.
* These faces contain 1, 2, 3, 4, 5, and 6 spots.
* After the dice have come to rest, the sum of the spots on the two upward faces is calculated.
* If the sum is 7 or 11 on the first throw, the player wins.
* If the sum is 2, 3, or 12 on the first throw (called "craps"), the player loses
* If the sum is 4, 5, 6, 8, 9, or 10 on the first throw, then the sum becomes the player's "point"
* To win, you must continue rolling the dice until you "make your point."
* The player loses by rolling a 7 before making the point

Do you want to play or quit(y/n): y
Enter your initial balance: 100
Enter wager amount: 25
Dice rolled = 7
You Win!!! and earn money 125

Good Bye!!!

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rules.txt

* A player rolls two dice.
* Each die has six faces.
* These faces contain 1, 2, 3, 4, 5, and 6 spots.
* After the dice have come to rest, the sum of the spots on the two upward faces is calculated.
* If the sum is 7 or 11 on the first throw, the player wins.
* If the sum is 2, 3, or 12 on the first throw (called "craps"), the player loses
* If the sum is 4, 5, 6, 8, 9, or 10 on the first throw, then the sum becomes the player's "point"
* To win, you must continue rolling the dice until you "make your point."
* The player loses by rolling a 7 before making the point