Question

I created a text-based game to help improve my C++ skills since I am very new to it. I’m trying to learn the basics n’ all.

Here is the program. In the switch statement, if a person were to select “3” it would broadcast an Error saying you can only select “1” or “2”.
** The issue is the program continues and doesn’t make the person RECHOOSE the selection. It goes right to Difficulty selecting.

What method do I use to force the program to halt until player chooses valid selection?

Thanks!

#include <iostream>
using namespace std;

int main()
{
cout << "\tWelcome to my text based game!\n";
char userName[100];
cout << "\nPlease enter your username: ";
cin >> userName;
cout << "Hello, " << userName << "!\n\n";

cout << "Please pick your race: \n";
cout << "1 - Human\n";
cout << "2 - Orc\n";
int pickRace;
cout << "Pick your race: ";
cin >> pickRace;

switch (pickRace)
{
    case 1:
        cout << "You picked the Human race." << endl;
        break;
    case 2:
        cout << "You picked the Orc race." << endl;
        break;
    default:
        cout << "Error - Invalid input; only 1 or 2 allowed!" << endl;
}

int difficulty;
cout << "\nPick your level difficulty: \n";
cout << "1 - Easy\n";
cout << "2 - Medium\n";
cout << "3 - Hard\n";

cout << "Pick your level difficulty: ";
cin >> difficulty;

switch (difficulty)
{
    case 1:
        cout << "You picked Easy" << endl;
        break;
    case 2:
        cout << "You picked Medium" << endl;
        break;
    case 3:
        cout << "You picked Hard" << endl;
        break;
    default:
        cout << "Error - Invalid input, only 1,2 or 3 are allowed" << endl;
}

return 0;

}

Answer 1

Use a do ... while loop, like this

int pickRace;
do
{
  cout << "Please pick your race: \n";
  cout << "1 - Human\n";
  cout << "2 - Orc\n";
  cout << "Pick your race: ";
  cin >> pickRace;
  switch (pickRace)
  {
    case 1:
      cout << "You picked the Human race." << endl;
      break;
    case 2:
      cout << "You picked the Orc race." << endl;
      break;
    default:
      cout << "Error - Invalid input; only 1 or 2 allowed!" << endl;
      break;
  }
}
while (pickRace != 1 && pickRace !=2);

This will keep on looping while the condition at the bottom is true (i.e. while they haven’t picked a valid option).

One other comment. Since you are new you should really get into the habit of using string not char arrays. Char arrays will get you into all sorts of trouble in the future, so start using strings now. There’s no point in learning bad habits.

#include <string>

string userName;
cout << "\nPlease enter your username: ";
cin >> userName;
cout << "Hello, " << userName << "!\n\n";