#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <ctime>
using namespace std;

void welcome();
char getGuess(string question);
char checkGuess(string theWord, char guess);

int main()
{
    srand(time(NULL));
    char guess;
    bool done = false;
    
    vector<string> words;
    words.push_back("guitar");
    words.push_back("vampire");
    words.push_back("sponge");
    words.push_back("comcast");
    words.push_back("love");
    
    // randomly picks a word
    random_shuffle(words.begin(), words.end());
    string theWord = words[0];
    
    string soFar;
    char goodGuess;
    const int MAX_GUESS = theWord.size();
    int numGuess = 0;
    int counter = 0;
    
    for(int i = 0; i != theWord.size(); i++) {
        soFar = '_';
    }
    
    welcome();
    while(!done) {
        
        system("cls");
        cout << "The word so Far:\n\n";
        
        for(int i = 0; i != theWord.size(); i++) {
            cout << soFar << " ";
        }
        
        guess = getGuess("\n\nPlease Enter in 1 Letter: ");
        goodGuess = checkGuess(theWord, guess);
        
        if(theWord.find(goodGuess) != string::npos) {
                for(int i = 0; i != theWord.size(); i++) {
                    if(theWord == goodGuess) {
                        soFar = goodGuess; 
                        --numGuess;
                    }
                }
            } 
        
        if(MAX_GUESS <= numGuess) {
            cout << "\nHAHAHA! YOU LOSE!\n\n";
            system("pause");
            done = true;
        }
         
        if(soFar == theWord) {
              cout << "\nOMG! YOU WON!\n\n";
              system("pause");
              done = true;
        }
        
        ++numGuess;
    }
    
    return 0;
}

//////////////////////////////////////////////////////////////////////////
/////                                                                /////
/////                        FUNCTION DEFINITIONS                    /////
/////                                                                /////
//////////////////////////////////////////////////////////////////////////

void welcome()
{
    cout << "Welcome to Hangman! Good Luck!\n\n";
    system("pause");
}

char getGuess(string question)
{
    char playerGuess;
    
    cout << question;
    cin >> playerGuess;
    
    return playerGuess;
}

char checkGuess(string theWord, char guess)
{
    char cGuess = guess;
    
    for(int i = 0; i != theWord.size(); i++) {
        if(cGuess == theWord) {
            return cGuess;
        }
    }
    
    return 0;
}