Question

c++ program can you please explain how it works and the process?

Question: You will design a program in C++ that plays hangman using classes (polymorphism and inheritance)....

Hangman Game

CODE:

#include <iostream>

#include <cstdlib>

#include<ctime>

#include <string>

using namespace std;

int NUM_TRY=8; //A classic Hangman game has 8 tries. You can change if you want.

int checkGuess (char, string, string&); //function to check the guessed letter

void main_menu();

string message = "Play!"; //it will always display

int main(int argc, char *argv[])

{

string name;

char letter;

string word;

  

string words[] = //These are the list of 10 three lettered words.

{ //You can change them as per your requirement.

"man",

"van",

"tan",

"hop",

"pop",

"two",

"six",

"may",

"low",

"out",

};

  

srand(time(NULL));

int n=rand()% 10; //Random function to genterate random words from the given list

word=words[n];

  

  

string hide_m(word.length(),'X'); // This function is used to hide the actuall word to be guessed.

//The mask selected is 'X' so the word will show as 'XXX' till you guess the correct letters.

  

  

  

while (NUM_TRY!=0)

{

main_menu();

cout << "\n" << hide_m;

cout << "\nGuess a letter: ";

cin >> letter;

  

if (checkGuess(letter, word, hide_m)==0)

{

message = "Wrong letter.";

NUM_TRY = NUM_TRY - 1;

}

else

{

message = "NICE! You guessed a letter";

}

if (word==hide_m)

{

message = "Congratulations! You got it!";

main_menu();

cout << "\nThe word is : " << word << endl;

break;

}

}

if(NUM_TRY == 0)

{

message = "NOOOOOOO!...you've been hanged.";

main_menu();

cout << "\nThe word was : " << word << endl;

}

cin.ignore();// used to discard everything in the input stream

cin.get();

return 0;

}

int checkGuess (char guess, string secretword, string &guessword)

{

int i;

int matches=0;

int len=secretword.length();

for (i = 0; i< len; i++)

{

  

if (guess == guessword[i])

return 0;

  

if (guess == secretword[i])

{

guessword[i] = guess;

matches++;

}

}

return matches;

}

void main_menu()

{

system("cls");

cout<<"\nHangman Game!";

cout << "\nYou have " << NUM_TRY << " tries to try and guess the word.";

cout<<"\n"+message;

}

//*end of code*

So here is the code of the Hangman guessing game.

Answer 1

First of lets understand the game

1. There will be two person one who give the word and second who will guess the word.
2. The guessing player has number of attempts.
3. Now guessing player suggest a letter one by one and he has to guess all the letter of the word within the number of attempts.

Now demonstrating the program

1. Here NUM_TRY is the number of attempts.
2. The string array words is the collection of words.
3. With the help of random function (srand) it selected a index number and according to the index number one word is selected.
4. String hide_m will hide the actual word and replace the letters with X.
5. main_menu function will present a main screen for the game.
6. Now the main process is within while loop.
7. For every attempts you have to provide a letter and then the letter along with secret word and guess word passed to checkGuess function.
8. checkGuess function will check if the letter is in the actual word or not.
9. if yes a success message will be displayed else a failure message will be displayed. Attempt will be incremented by 1 in both the cases.
10. If the word is guessed within the number of attempts success message will be displayed along with the correct word else failure message displayed along with the correct word.