main.cpp

//
//  main.cpp
//  BullCowGame
//
//  Created by Justin Kanz on 5/8/19.
//  Copyright © 2019 Justin Kanz. All rights reserved.
//

/* This is the console executable, that makes use of the BullCow class
 This acts as the view in a MVC pattern, and is responsible for all user interaction. For game logic see the FBullCowGame class.
 */
#pragma once

#include <iostream>
#include <string>
#include "FBullCowGame.hpp"

// to make syntax Unreal friendly
using FText = std::string;
using int32 = int;

// function prototypes as outside a calss
void PrintIntro();
void PlayGame();
FText GetValidGuess();
bool AskToPlayAgain();
void PrintGameSummary();

FBullCowGame BCGame; //instantiate a new instance of the game, which we reuse across plays

//Entry Point for the application
int main()
{
    bool bPlayAgain = false;
    
    do{
    PrintIntro();
    PlayGame();
    bPlayAgain = AskToPlayAgain();
    }
    
    while(bPlayAgain);
    
    return 0;
}


void PrintIntro()
{
    
    std::cout << "Welcom to Bulls and Cows, a fun word game!\n";
    std::cout << "Can you guess the " << BCGame.GetHiddenWordLength();
    std::cout << " letter isogram I'm thinking of?\n";
    std::cout << std::endl;
    return;
}

// plays a single game to completion
void PlayGame()
{
    BCGame.reset();
    int32 MaxTries = BCGame.GetMaxTries();
    
    // loop asking for guesses while the game
    // is NOT won and there are still tries remaining
    while(!BCGame.IsGameWon() && BCGame.GetCurrentTry() <= MaxTries)
    {
        FText Guess = GetValidGuess();
        
        //submit valid guess to the game, and recieve counts
       FBullCowCount BullCowCount = BCGame.SubmitValidGuess(Guess);
        
        std::cout << "Bulls = " << BullCowCount.Bulls;
        std::cout << ". Cows = " << BullCowCount.Cows << "\n\n";
    }
    PrintGameSummary();
    
    return;

}


// loop continually until the user gives a valid guess
FText GetValidGuess()
{
    FText Guess = "";
    EGuessStatus Status = EGuessStatus::Invalid_Status;
    do
    {
        // get a guess from the player
        int32 CurrentTry = BCGame.GetCurrentTry();
        std::cout << "Guess #" << CurrentTry << " of " << BCGame.GetMaxTries();
        std::cout << ". Enter Your Guess " << std::endl;
        std::getline(std::cin, Guess);

        // check status and give feedback
        Status = BCGame.CheckGuessValidity(Guess);
        switch (Status)
        {
            case EGuessStatus::Wrong_Length:
                std::cout << "Please enter a " << BCGame.GetHiddenWordLength() << "letter word.\n";
                break;
            case EGuessStatus::Not_Lowercase:
                std::cout << "Please enter all lowercase letters.\n\n";
                break;
            case EGuessStatus::Not_Isogram:
                std::cout << "Please enter a word without repeating letters.\n\n";
                break;
            default: // assume the guess is correct
                break;
        }
        std::cout << std::endl;
    }
    while (Status != EGuessStatus::OK); // keep looping until we get no errors
    
    return Guess;
}

bool AskToPlayAgain()
{
    std::cout << "Do you want to play again with the same hidden word (y/n)?";
    FText Response = "";
    std::getline(std::cin, Response);
    
    return (Response[0] == 'y') || (Response[0] == 'Y');
    
}

void PrintGameSummary()
{
    if (BCGame.IsGameWon())
    {
        std::cout << "WELL DONE - YOU WIN!\n";
    }
    else
    {
        std::cout << "Better luck next time!\n";
    }
}