Question

I am following a tutorial video on how to make a very simple game using C++. I am very early in the tutorial and I had no issues until now. Accourding to the video when I run the program it should display any key I press with “Here’s what you pressed: (pressed key goes here)”. Also, it should exit the program when I press the Q key. On the video it works fine, but sadly on my screen it is just a blank DOS prompt that does not respond to anything. Can anyone please look at what I got so far and see if there is a way to troubleshoot this issue. Again, I am new at this so any help would be greatly appreciated. Perhaps there is a header missing or something…

game.cpp

#include <iostream>    //Include this and namespace in all files.
using namespace std;

#include "game.h"
#include <conio.h>

bool Game::run(void)
{
char key = ' ';

while (key != 'q')
{
    while (!getInput(&key))
    {
    }

    cout << "Here's what you pressed: " << key << endl;
}

cout << "End of the game" << endl;
return true;
}

bool Game::getInput(char *c)
{
if (kbhit())
{
    *c = getch();
}

return false;
}

game.h

#ifndef GAME_H //Make sure this accompanies #endif.
#define GAME_H

class Game
{
public:
bool run (void);

protected:
bool getInput (char *c);
void timerUpdate (void);
};

#endif //Make sure this accompanies #ifndef.

main.cpp

#include "game.h"


int main ()
{
Game gameHeart;

gameHeart.run();

return 0;
//system("pause");
}

Answer 1

The Game.getInput always returns false, so Game.run would endlessly ask for a keyboard input. Here’s the fix.

bool Game::getInput(char *c)
{
    if (kbhit())
    {
        *c = getch();
        return true;
    }
    return false;
}