(Craps Game Modification) Modify the craps program of 5.10 to allow wagering. Package as a function the portion of the program that runs one game of craps. Initialize variable bankBalance to 1000 dollars. Prompt the player to enter a wager. Use a while loop to check that wager is less than or equal to bankBalance and, if not, prompt the user to reenter wager until a valid wager is entered. After a correct wager is entered, run one game of craps. If the player wins, increase bankBalance by wager and print the new bankBalance. If the player loses, decrease bankBalance by wager, print the new bankBalance, check on whether bankBalance has become zero and, if so, print the message "Sorry. You busted!" As the game progresses, print various messages to create some “chatter” such as "Oh, you're go

Question

What will be an ideal response?

Answer 1

```
// Craps game simulation with wagering.
#include
#include // contains prototypes for functions srand and rand
#include // contains prototype for function time
using namespace std;

// enumeration constants represent game status
enum Status { WON, LOST, CONTINUE };

int rollDice(); // function prototype
Status craps(); // function prototype
void chatter(); // function prototype

int main()
{
Status result; // result of current game
int wager = 0; // wager for current game
int bankBalance = 1000; // current bank balance
char playAgain; // whether user wants to play another game

// randomize random number generator using current time
srand( time( 0 ) );

// loop until user enters sentinel value
do
{
// display current balance and prompt for wager
cout << "You have $" << bankBalance
<< " in the bank.\nPlace your wager: ";
cin >> wager;

// loop until valid wager
while ( wager <= 0 || wager > bankBalance )
{
cout << "Please bet a valid amount.\n";
cin >> wager;
} // end while

result = craps(); // play game of craps

if ( result == LOST ) // if player lost current game
{
bankBalance -= wager; // decrease balance by wager

// display new balance
cout << "Your new bank balance is $" << bankBalance << "\n";

if ( bankBalance == 0 ) // balance is 0
{
// display message
cout << "Sorry. You Busted! Thank You For Playing.\n";
break; // break out of while loop
} // end if
} // end if
else // else, player won current game
{
bankBalance += wager; // increase balance by wager

// display new balance
cout << "Your new bank balance is $" << bankBalance << "\n";
} // end else
// prompt for next game
cout << "Would you like to try your luck again (y/n)? ";
cin >> playAgain;

} while ( playAgain == 'y' || playAgain == 'Y' );

cout << endl;
} // end main

// roll dice, calculate sum and display results
int rollDice()
{
int die1; // first die value
int die2; // second die value
int workSum; // sum of dice

die1 = 1 + rand() % 6; // pick random die1 value
die2 = 1 + rand() % 6; // pick random die2 value
workSum = die1 + die2; // sum die1 and die2

// display results of this roll
cout << "Player rolled " << die1 << " + " << die2
<< " = " << workSum << endl;
return workSum; // return sum of dice
} // end function rollDice

// craps plays one game of craps, returns result of game
Status craps()
{
int sum; // current roll of dice
int myPoint; // point value
Status gameStatus; // can contain CONTINUE, WON or LOST

sum = rollDice(); // first roll of dice

// determine game status and point based on sum of dice
switch ( sum )
{
case 7: // win on first roll
case 11:
gameStatus = WON;
break;
case 2: // lose on first roll
case 3:
case 12:
gameStatus = LOST;
break;
default: // remember point
gameStatus = CONTINUE;
myPoint = sum;
cout << "Point is " << myPoint << '\n';
break;
} // end switch
// while game not complete ...
while ( gameStatus == CONTINUE )
{
chatter(); // create "chatter"
sum = rollDice(); // roll dice again

// determine game status
if ( sum == myPoint )
gameStatus = WON; // win by making point
else
{
if ( sum == 7 ) // lose by rolling 7
gameStatus = LOST;
} // end else
} // end while

// display won or lost message and return status
if ( gameStatus == WON )
{
cout << "Player wins" << endl;
return WON;
} // end if
else
{
cout << "Player loses" << endl;
return LOST;
} // end else
} // end function craps

// chatter displays messages at random to create "chatter"
void chatter()
{
// choose message at random
switch ( rand() % 9 )
{
case 0:
cout << "Oh, you're going for broke, huh?";
break;
case 1:
cout << "Aw cmon, take a chance!";
break;
case 2:
cout << "Hey, I think this guy is going to break the bank!!";
break;
case 3:
cout << "You're up big. Now's the time to cash in your chips!";
break;
case 4:
cout << "Way too lucky! Those dice have to be loaded!";
break;
case 5:
cout << "Bet it all! Bet it all!";
break;
case 6:
cout << "Can I borrow a chip?";
break;
case 7:
cout << "Let's try our luck at another table.";
break;
case 8:
178 cout << "You're a cheat! It is just a matter of time"
<< "\nbefore I catch you!!!";
break;
} // end switch

cout << endl;
} // end function chatter
```