I'm writing a guessing game. The program picks a random number and says whether guesses are less than, greater than, or equal to it. All of that works, but I have two problems.
First, I want to be able to type q and quit the program, but when I type q, it goes through all of the turns as if I typed the same number. I don't really understand cin good enough to figure out what's going wrong, and I can't find my problem. I think I'm looking for the wrong things.
Second, the number that the program picks is always the same. I read about rand and srand, and how srand can change the numbers that rand gives, but I can't figure out how to make the number I give srand change without recompiling the program.
Here's my program.
Any other suggestions are welcome too. :) Thanks!Code:#include <cstdlib>
#include <iostream>
using std::cout;
class GuessingGame
{
private:
int rightNumber;
int turns;
public:
enum Result
{
LESS,
EQUAL,
GREATER
};
GuessingGame(int low, int high)
{
rightNumber = (std::rand() % (high - low)) + low;
turns = 0;
}
Result Guess(int guess)
{
++turns;
if (rightNumber < guess)
{
return LESS;
}
else if (rightNumber > guess)
{
return GREATER;
}
else
{
return EQUAL;
}
}
int Turns()
{
return turns;
}
};
int main()
{
const int low = 0;
const int high = 100;
const int maxTurns = 10;
GuessingGame game(low, high);
do
{
int guess;
GuessingGame::Result result;
cout << "Pick a number between " << low << " and " << high << "\n";
std::cin >> guess;
result = game.Guess(guess);
if (result != GuessingGame::EQUAL)
{
int turnsLeft = maxTurns - game.Turns();
if (turnsLeft != 0)
{
if (result == GuessingGame::LESS)
{
cout << "The number is less than " << guess << "\n";
}
else
{
cout << "The number is greater than " << guess << "\n";
}
cout << "You have " << turnsLeft << " turns left\n";
}
else
{
cout << "Game over. You have no more turns\n";
break;
}
}
else
{
cout << "You won! The number was " << guess << "\n";
break;
}
}
while (true);
return 0;
}
