Number Guessing Game in C++

   January 28, 2023
Number Guessing Game in C++

In this article, we will build a simple Number Guessing Game in C++. It’s a game in which the player has to guess a secret number in a range that is generated by the computer and upon a wrong guess by the player, the game will give hints to the player to guess the correct number. This will be a console game so even if you have little knowledge of C++, you will be able to follow up and build this game easily.

Features

  • The player can choose the number of rounds he wants to play the game
  • After finishing each round the current score is updated and once all the rounds are completed the high score is updated and shown on the screen.
  • If the player guesses the correct number on the first try, he gets 10 points, If guessed on the second try then 5 points, if guessed on the third try then 3 points, and if guessed after the third try then only 1 point.

Code for Number Guessing Game in C++

We will use Code::Blocks IDE to develop this application. Open the Code::Blocks IDE and create a new project with the name guessthenumber, now in the main.cpp file paste the following code and run it.

#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{

    system("color CF"); //This gives the terminal a color and the text on the screen
    system("title GuessTheNumber @copyassignment"); //This sets the text on the terminal
    int user_input,secret_num,c=0,wrong_attempts=0;
    int curr_score=0, max_score=0;
    int number_of_rounds;
    int choice;
    cout << "\t\t\t<==================================================================>" << endl;
    cout << "\t\t\t|                 Welcome to the number guessing Game              |" << endl;
    cout << "\t\t\t<==================================================================>" << endl;
    cout << endl << endl << endl;
    cout << "\t\t\tchoose from below options" << endl;
    cout << "\t\t\t [1] Know Game Rules" << endl;
    cout << "\t\t\t [2] Play the game" << endl;
    cin >> choice;
    if(choice == 1){
        system("cls");
        cout << "\t\t\t<==================================================================>" << endl;
        cout << "\t\t\t|                 Welcome to the number guessing Game              |" << endl;
        cout << "\t\t\t<==================================================================>" << endl << endl << endl;
        cout << "\tChoose the number of rounds you want to play from 1-10" << endl;
        cout << "\tIn each round, you have to guess the secret number correctly" << endl;
        cout << "\tIf you guess the secret number in first attempt, you get 10 points" << endl;
        cout << "\tIf you guess the secret number in second attempt, you get 5 points" << endl;
        cout << "\tIf you guess the secret number in third attempt, you get 3 points" << endl;
        cout << "\tIf you guess the secret number in after third attempt, you get only 1 point" << endl;
    }
        cout << endl << endl;
        char ch;
        do
        {
            cout << "\t Please enter number of rounds you want to play this game (1-5)" << endl;
            cin >> number_of_rounds;
            curr_score = 0;
            wrong_attempts = 0;
            // this loop run for the number of rounds the user wants to play
            for(int i=0; i<number_of_rounds; i++){
                secret_num=rand()%10+1; // generate a random secret number in the range 1-10

                // until the user doesn't find the right answer keep on asking and checking
                while(secret_num != user_input)
                {
                    cout<<"\t Enter your guess between 1-10 "<<endl;
                    cin >> user_input;
                    cout<<endl;
                    if(user_input < secret_num){
                        cout << "\t Your guess is low, guess higher!!!" << endl;
                        wrong_attempts++;
                    }
                    else if(user_input > secret_num)
                    {
                        cout<<"\t Your guess is high, guess lower!!!"<<endl;
                        wrong_attempts++;
                    }
                }

                //when the user has guessed it right, check how quickly the number was found and give points accordingly
                cout<<"\t Congratulations your guess is correct"<<endl << endl;
                cout<<"\t You guessed wrong numbers " << wrong_attempts << " times" << endl << endl; //show how many times the number was guessed wrong

                //if there is next round still remaining then show message
                if(i!=number_of_rounds-1){
                    cout << "\t Let's start next round" << endl;
                }
                cout << endl << endl;
                    if(wrong_attempts == 0){
                        curr_score = curr_score + 10;
                    }
                    else if(wrong_attempts == 1){
                        curr_score = curr_score + 5;
                    }
                    else if(wrong_attempts == 2){
                        curr_score = curr_score + 3;
                    }
                    else{
                        curr_score = curr_score + 1;
                    }
            }

            //set the high score if it's greater than previous score
            if(curr_score > max_score){
                max_score = curr_score;
            }
            system("cls");
            cout << "\t\t\t You have completed all the rounds" << endl;
            cout << "\t\t\t Your current score is: " << curr_score << endl;
            cout << "\t\t\t Highest score: " << max_score << endl << endl << endl;
            cout<<"Do you want to play again y/n";
            cin >> ch;
            cout<<endl;
            if(ch !='n' && ch !='y'){
                cout << "\tWrong Input, Please enter y/n" << endl;
            }
            system("cls");
            cout << "\t\t\t<==================================================================>" << endl;
            cout << "\t\t\t|                 Welcome to the number guessing Game              |" << endl;
            cout << "\t\t\t<==================================================================>" << endl;
        }while(ch!='n');

}

Output of Number Guessing Game in C++

Image Output:

output

Video Output:

Conclusion

I hope this article on Number Guessing Games in C++ could help you learn something valuable. Building these types of small games can help you get good at logic building and learn a language faster. You should try to tweak the code here and there and see how the whole program is working.

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