main.cpp

#include <iostream>
#include <cstdlib>
#include <ctime>
#include "dictionary.h"

// function prototypes:
std::string get_hint(std::string,std::string);
void capitalize(std::string &);

// Wordler game!
int main(){
    srand(time(NULL)); //execute only once per run

    dictionary word_list;
    std::string guess;
    std::string hint;
    std::string secret;
    int guesses = 0;

    secret = word_list.select_word();
    // REVEAL ANSWER: std::cout << secret << std::endl;
    std::cout << "Welcome to Wordler -- a game that totally isn't simplified Wordle\n";
    std::cout << "Guess your five-letter word:\n_____\n";
    
    do{
        // require user to enter another guess if their word isn't 5 letters long
        do{
            std::cin >> guess;
        }while( guess.length() != 5 );

        // capitalize guess for easy comparisons
        capitalize(guess);
        guesses++;
        hint = get_hint(guess,secret);
        capitalize(hint);

        if( hint == secret ){
            std::cout << "Congrats, you got it in " << guesses << " guesses!\n";
        }
        else{
            std::cout << hint << " Guess again: ";
        }
    }while( guess != secret );
    

    return 0;
}

// compares a guess and a secret word and reveals matching letters, but all
// non-matching letters become underscores ('_') and the hint is returned
std::string get_hint(std::string match, std::string word){
    for(int i=0; i<word.length(); i++){
        if( word[i] != match[i] ){
            word[i] = '_';
        }
    }
    return word;
}

// capitalizes a word (to UPPER CASE)
void capitalize(std::string & word){
    for(int i=0; i<word.length(); i++){
        word[i] = toupper(word[i]);
    }
}