Rand() function
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  1. #1
    Join Date
    Feb 2011
    Posts
    3

    Question Rand() function

    I'm trying to make a simple console game using Microsoft visual c++ 2010. It is a guessing game in which it creates a random number and you try to guess the number. There are two options, 1 to 10, or 1 to 100. The problem is it keeps generating a new random number every time i guess. I need the number to stay the same throughout the game. Does anyone know what the problem is?

    Here is my code:

    Code:
    #include <iostream>
    #include <time.h>
    
    using namespace std;
    
    void game1();
    void game2();
    
    void main() {
    	cout << "Guess the number" << endl;
    	cout << "----------------" << endl;
    	cout << "Please select an option" << endl;
    	cout << "1. 1 to 10" << endl;
    	cout << "2. 1 to 100" << endl;
    	int selection;
    	cin >> selection;
    	if (selection == 1) {
    		game1();
    	}
    	if (selection == 2) {
    		game2();
    	}
    }
    
    void game1() {
    	system("cls");
    	cout << "Guess the number (1 to 10):" << endl;
    	for (int times = 1;;times++) {
    		char answer;
    		int guess;
    		int number;
    		srand(time(0));
    		number = int(rand() &#37; 10 + 1); 
    		cin >> guess;
    		if (guess == number)
    		{
    			system("cls");
    			cout << "You win!" << endl;
    			cout << "It took you " << times << " times to guess." << endl;
    			cout << "Would you like to play again? (y/n)" << endl;
    			cin >> answer;
    			if (answer = 'y') {
    				game1();
    			}
    			if (answer = 'n') {
    				main();
    			}
    			system("pause");
    		}
    		else
    			if (guess > number) {
    				cout << "The number is less than " << guess << ". Guess the number (1 to 10):" << endl;
    			}
    		else
    			if (guess < number) {
    				cout << "The number is more than " << guess << ". Guess the number (1 to 10):" << endl;
    			}
    
    	}
    }
    
    void game2() {
    	system("cls");
    	cout << "Guess the number (1 to 100):" << endl;
    	for (int times = 1;;times++) {
    		char answer;
    		int guess;
    		int number;
    		srand(time(0));
    		number = int(rand() % 100 + 1); 
    		cin >> guess;
    		if (guess == number)
    		{
    			system("cls");
    			cout << "You win!" << endl;
    			cout << "It took you " << times << " times to guess." << endl;
    			cout << "Would you like to play again? (y/n)" << endl;
    			cin >> answer;
    			if (answer = 'y') {
    				game2();
    			}
    			if (answer = 'n') {
    				main();
    			}
    			system("pause");
    		}
    		else
    			if (guess > number) {
    				cout << "The number is less than " << guess << ". Guess the number (1 to 100):" << endl;
    			}
    		else
    			if (guess < number) {
    				cout << "The number is more than " << guess << ". Guess the number (1 to 100):" << endl;
    			}
    
    	}
    }
    Last edited by Marc G; February 22nd, 2011 at 03:15 AM. Reason: Added code tags

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