Mastermind COde

[YeetParadox]

I am unsure on how to fill out the rest of the code. I need arrays for the number of tries and spots.

#include <iostream>
#include <cstdlib>
#include <time.h>
using namespace std;

int main(){
	int guess;
	srand( time(NULL) );
	int number = rand() % 10000;
	
	cout<< "Welcome to the game of Mastermind. ";
	cout<< "You have 12 chances to guess a combination of ";
	cout<< "4 non-repeating digits from 1 to 8."<<endl;
	
	cout<< "Enter your digits as xxxx. " <<endl;
	cout<< "The computer chose: "<< number <<endl;

	if(guess != number)
		do{
			cout<< "Enter your guess: ";
			cin>> guess;
			cout<<"Correct Digits: ";
			cout<<"Correct Spots: ";
			cout<<"Guesses left: ";
		}while(guess != number);
		
		
	if(number == guess){
		cout<<"you win";
		cout<<"you got it in "<< tries<< "moves";
		}
	else
		cout<<"you lost, the answer was"<<number;
}

int correctdigits(int a[],int g[], int size[]){
	int count = 0;
	for (int i = 0; i < 4; i++){
		for (int j = 0; j < 4; j++){
			if(a[i] == g[i])
				count++;
		}
	}
}


int correctspots(int a[], int g[], int size){
	int count = 0;
		for(int i = 0; i < size; i++){
			if(a[i] == g[i])
				count++;
		}
		return count;
}

[samuelzurowski]

1. Explain what the program is supposed to do.
2. What part do you not understand?
3. Explain what you have tried to do for the solution.

I will gladly help if you give more details to understand what the problem is.

In your code the indentation is incorrect here:

int correctspots(int a[], int g[], int size){
	int count = 0;
		for(int i = 0; i < size; i++){
			if(a[i] == g[i])
				count++;
		}
		return count;
}

it should be:

int correctspots(int a[], int g[], int size){
    int count = 0;
    for(int i = 0; i < size; i++){
        if(a[i] == g[i])
            count++;
    }
    return count;
}

refer to this article for indentation rules: http://www.cplusplus.com/forum/beginner/65839/

[YeetParadox]

In the classic game of Mastermind, a random set of 4 digits (from 1-6) are selected by the computer. A player will have 12 attempts to guess the pattern of digits. The computer will respond after every guess the user makes--with a number of correct digits that was made, and the number of spots the digits are in.
The player will have 12 attempts to guess the pattern of digits.

I am supposed to record the array of moves the user made. And there is more.

What I did so far is provide a simple structure of a welcome screen, and functions for correct digits and spots but I need help into turning it into a full working code.

[samuelzurowski]

Lets do small parts at a time.

srand( time(NULL) );
int number = rand() % 10000;

This is not going to provide you with a set of 4 digits from 1-6. it would be 0-9999.

a way you could do this is:

int num1 = rand() % 5 + 1 // 1 to 6
int num2 = rand() % 5 + 1
int num3 = rand() % 5 + 1
int num4 = rand() % 5 + 1

Each time a guess is incorrect you could make a variable called counter as shown:

int totalGuesses = 12;
for(int i = 0; i < totalGuesses; ++i) {
    // logic for each num in here
}

[YeetParadox]

6+1 is 1 to 7 right?
also i dont know how to incorporate guesses into the code. would it go in int main?

[YeetParadox]

also how do i incorporate num1,2,3,4 into 1 actual variable number

[samuelzurowski]

for rand reference: http://www.cplusplus.com/reference/cstdlib/rand/
for stringstream: http://www.cplusplus.com/reference/sstream/stringstream/
atoi (attempts to converts char* to int): http://www.cplusplus.com/reference/cstdlib/atoi/



incorporation that you could use a string stream then convert it into a number/string as shown:

#include <iostream>
#include <sstream>
#include <string>

using namespace std;

int main(int argc, const char * argv[]) {
    stringstream stream1;
    int fullNumber;
    int nums[4] = {};
    srand( time(NULL) );
    nums[0] = rand() % 5 + 1; // 1 to 6
    nums[1] = rand() % 5 + 1;
    nums[2] = rand() % 5 + 1;
    nums[3] = rand() % 5 + 1;
    
    for(int i = 0; i < 4; ++i) {
        stream1 << nums[i]; // put each value into the string stream
    }
    string fullString = stream1.str(); // as a string
    fullNumber = atoi(stream1.str().c_str()); // convert to string then char*
    cout << fullNumber << endl; // print full number for validation.
    return 0;
}
}

[samuelzurowski]

Here is a possible solution

also i messed up it should have been for rand()

int num = rand() % 6 + 1;

full solution:

#include <iostream>
#include <sstream>
#include <string>

using namespace std;

int main(int argc, const char * argv[]) {
    stringstream stream1;
    int nums[4] = {};
    string guess;
    int guessedAllowed = 12;
    
    srand( time(NULL) );
    nums[0] = rand() % 6 + 1; // 1 to 6
    nums[1] = rand() % 6 + 1;
    nums[2] = rand() % 6 + 1;
    nums[3] = rand() % 6 + 1;
    
    for(int i = 0; i < 4; ++i) {
        stream1 << nums[i]; // put each value into the string stream
    }
    
    string fullString = stream1.str(); // as a string
    cout << fullString << endl; // remove this later just shows you string
    
    for(int i = 0; i < guessedAllowed; ++i) {
        int correct = 0;
        cout << "Enter a 4 letter key(xxxx): ";
        getline(cin, guess);
        if(guess.size() != 4) { // to only allow 4 characters.
            cout << "Please enter 4 numbers" << endl;
            i--;
            continue; // so it does not count an invalid num
        }
        if(guess[0] == fullString[0]) {
            cout << "First letter correct" << endl;
            correct++;
        }
        if(guess[1] == fullString[1]) {
            cout << "Second letter correct" << endl;
            correct++;
        }if(guess[2] == fullString[2]) {
            cout << "Third letter correct" << endl;
            correct++;
        } if(guess[3] == fullString[3]) {
            cout << "Last letter correct" << endl;
            correct++;
        }
        if(correct == 4) {
            cout << "You win! Exiting." << endl;
            exit(0);
        }
        if(correct == 0) cout << "NONE CORRECT!"<< endl;
    }
    cout << "YOU LOSE D:" << endl;
    return 0;
}

[YeetParadox]

I dont use sstream and string, do you want me to elaborate more on the details of the project?

[samuelzurowski]

Yeah sure that would help.

[YeetParadox]

can you open your pms