I need to write a poker game that simulates a penalty kick in a soccer match. Three cards are drawn randomly.

``````void DrawCard(int& numberOne, int& numberTwo, int& numberThree)
{
RandNoGen();	//init random number generator

numberOne = rand() % 13 + 1;	//random number in [1, 13]
do
{
numberTwo = rand() % 13 + 1;
numberThree = rand() % 13 + 1;
}
while (numberOne == numberTwo);   //Their values randomly from 1 to 13, the first two values cannot be the same

while(true)	//inner forever loop
{
cout << "\nThe two goalposts are " << numberOne << " and " << numberTwo << "\n";
//And act as the goalposts while the third value represents the third card
cout << "Press any key to kick action.\n";
cin >> key;
cout << "The third goalpost is " << numberThree << "\n";

if (numberOne < numberThree &&  numberThree < numberTwo || numberTwo < numberThree && numberThree < numberOne)
{
cout << "Goal!! You win \$" << betMoney << ".\n";
break;
}

else if (numberThree == numberOne || numberThree == numberTwo)
{
cout << "Amazing... You hit the goalpost! You lose \$" << moneyLostSame << ".\n";
break;
}

else
{
cout << "Oh! It's out, you lose \$" << betMoney << ".\n";
break;
}
}

}``````

But instead of showing A, 2, ..., J, Q, K, it shows 1 to 13.
How can I convert 1, 11, 12, 13 back to A, J, Q, K?

Also, there's a Game Menu before starting the betting game.

``````char GameMenu()
{
cout << "\n=== Penalty kick game ===\n\n";
cout << "[r] The record of your game\n";
cout << "[s] Start betting\n";
cout << "[b] Back to the betting room\n";
cout << "Enter your choice (r, s or b) :";
cin >> secondChoice;
return secondChoice;
}

{
while(true)
{
{
case 'r': cout << "\nNumber of times that you won: " << x << "\n";
cout << "Number of times that you lost: " << y << "\n";
break;

case 'R': cout << "\nNumber of times that you won: " << x << "\n";
cout << "Number of times that you lost: " << y << "\n";
break;

case 's': if (moneyInAccount < 100)
{
cout << "\nNo sufficient money to bet the game!\a\n";
continue;
}

else if (moneyInAccount >= 100)
{
cout << "\nPlease enter the amount of money to bet: \$";
cin >> betMoney;

if (betMoney < 100)
{
cout << "\nA hundred dollars is minimum, please input again.\a\n";
}

else if (betMoney >= 100)
{
MoneyBet(moneyInAccount);
DrawCard(numberOne, numberTwo, numberThree);
}
}

case 'S': if (moneyInAccount < 100)
{
cout << "\nNo sufficient money to bet the game!\a\n";
}

else if (moneyInAccount >= 100)
{
cout << "\nPlease enter the amount of money to bet: \$";
cin >> betMoney;

if (betMoney < 100)
{
cout << "\nA hundred dollars is minimum, please input again.\a\n";
}

else if (betMoney >= 100)
{
MoneyBet(moneyInAccount);
DrawCard(numberOne, numberTwo, numberThree);
}
}

case 'b': return;   //Back to Welcome Menu

case 'B': return;

default: cout << "\nInvalid input, please enter again!\a\a";
return;
}
}
}``````

Can I make it simplier by combining small and capital letter into one option?
i.e. combining case 'b' and case 'B' together, just using one case.

Also, why does the betting game play for two consecutive times before return instead of one time only?

## All 3 Replies

>>But instead of showing A, 2, ..., J, Q, K, it shows 1 to 13.
How can I convert 1, 11, 12, 13 back to A, J, Q, K?

You'll have to use conditionals (i.e. an "if" statement) and alter the output based on the value.

>>Can I make it simplier by combining small and capital letter into one option?
i.e. combining case 'b' and case 'B' together, just using one case.

Yes and no. You can not assign more than one value to a specific case. But, you can create more than one case and let the execution "fall through" the appropriate cases.

``````switch(someSelection) {
case 1:
//some code...
break;
case 2:
case 3:
//some more code...
break;
default:
//even more code...
}``````

In this example, if someSelection is one (1), "some code" will execute, then when it hits the break execution will exit the switch. If some selection is either 2 or 3, "some more code" will execute instead. This works because there is no `break;` in case 2, so execution "falls through" to case 3 and executes case 3's code until it hits the `break;` .

See if you can apply this idea to your code...

You haven't posted a section of code that appears to be relevant to this question. If I had to guess, you have your main application loop messed up, you're probably calling the wrong function.

>>Also, why does the betting game play for two consecutive times before return instead of one time only?
You don't have any breaks (that I can see) in your 's' and 'S' cases. You're probably getting unintentional "fall through" (which I talked about above).

Thank you very much!
But there are some more questions.

I tried to write an 'If' statement for converting 1, 11, 12, 13 into A, J, Q, K, but it doesn't work. Do I need to use something like 'Passed by Reference' in order to achieve this?

``````void AJQK()
{
if(numberOne == 1 || numberTwo == 1 || numberThree == 1)
{
numberOne = 'A';
numberTwo = 'A';
numberThree = 'A';
}

else if(numberOne == 11 || numberTwo == 11 || numberThree == 11)
{
numberOne = 'J';
numberTwo = 'J';
numberThree = 'J';
}

else if(numberOne == 12 || numberTwo == 12 || numberThree == 12)
{
numberOne = 'Q';
numberTwo = 'Q';
numberThree = 'Q';
}

else if(numberOne == 13 || numberTwo == 13 || numberThree == 13)
{
numberOne = 'K';
numberTwo = 'K';
numberThree = 'K';
}
}``````

I have tried on the suggestion on simplifying the cases and it works.

Maybe I first show the part including the Welcome Menu...

``````char WelcomeMenu()   //Welcome Menu
{
cout << "\n=== Welcome to 2011 betting room ===\n\n";
cout << "[m] Money left in your account\n";
cout << "[p] Put money into your account\n";
cout << "[g] Go to the Penalty Kick betting game\n";
cout << "[q] Quit\n\n";
cout << "Enter your choice (m, p, g or q) :";
cin >> firstChoice;   //For user to input their choice
return firstChoice;
}

void ChoiceWelcomeMenu()   //What will happen when choosing different choices in the Welcome Menu
{
moneyInAccount = 1000;
while(true)   //Inner forever loop; Unless user choose those designated options, they cannot do anything else
{
{
case 'm': cout << "\nMoney left in your account: \$" << moneyInAccount << "\n";   //Provide options with small letter

break;   //exit from this loop

case 'M': cout << "Money left in your account: \$" << moneyInAccount << "\n";   //Provide options with capital letter

break;

case 'p': MoneyDeposit(moneyInAccount);   //Calling function
cout << "\nUpdated amount of money in your account: \$" << moneyInAccount << "\n";
break;

case 'P': MoneyDeposit(moneyInAccount);
cout << "\nUpdated amount of money in your account: \$" << moneyInAccount << "\n";
break;

break;

break;

case 'q': cout << "\nThank you for playing!";
cout << "\nBye Bye!\n";
exit(1);   //End the program

case 'Q': cout << "\nThank you for playing!";
cout << "\nBye Bye!\n";
exit(1);

default: cout << "\nInvalid input, please enter again!\a\a\n";
//When the user input options other than those designated, the loop will run again
}
}
}``````

After I add in the 'break' in 's' and 'S' cases, it does return after playing for one time. But it still returns to the Welcome Menu instead of the Game Menu. Is there any problem in the loop?

Also, what is the difference between 'return' and 'break'? It seems that there is no difference between them when they are used in those loops.

>>But instead of showing A, 2, ..., J, Q, K, it shows 1 to 13.
How can I convert 1, 11, 12, 13 back to A, J, Q, K?

You'll have to use conditionals (i.e. an "if" statement) and alter the output based on the value.

I would use an array instead.
Now it's showing 1 to 13. Set up an array `string cardVal[] = "A", "1", "2",... "10", "J", "Q", "K"};` and use the value that is currently being displayed as an index into the above array and print the string instead.

commented: Not a bad idea. :) +13
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