//      RygGame.cpp
//      Program description: Program to generate a random
//      number b/n 100 and 999 and accept users guess. 
//      The user keeps guessing untill he guesses the random
//      number. The program gives the user a hint if he gueesed
//      one of the digits but its one wrong place.  

#include <iostream>
#include <iomanip>
#include <ctime>
#include <cstdlib>
#include <cstring> 




using namespace std;

class RygGame
{
      public: //RygGame constructor
              RygGame(bool exit_flag);
              //Method to set the random number       
              void setRandom();
              //Method to accept users guess and return true if correct 
              bool guessedNumber(const string& guessed);
      private:
              int MIN;  //Minimum value of the random number
              int MAX;  //Maximum value of the random number 
              int randomNumber;
              //Splits the random number into a array of single int's
              int randomArray[3];               
};

int  main()
{
     string g;
     bool exit_flag = false;
     RygGame game(exit_flag);
     game.setRandom();
     // Keeps asking the user to guess until he is correct
     while(exit_flag != true)
     {
        cout << "Please enter a guess(100-999)?" << endl;
        cin >> g;
        cout << endl;
        exit_flag = game.guessedNumber(g);                     
     }
     cin >> g; // This just keeps the program from exiting.
}

RygGame::RygGame(bool exit_flag)
{
     MIN = 100;
     MAX = 999;
}

void RygGame::setRandom()
{
     
    int i = 0;
    
    //Genrates the random number
    int lowest=MIN, highest=MAX; 
    int range=(highest-lowest)+1; 
    srand (time (0));
    rand( );
    randomNumber = lowest+int(range*rand()/(RAND_MAX + 1.0));
    
    //Splits the random number into a array of three
    while(randomNumber >= 100)
    {
        randomNumber = randomNumber - 100;
        i++;
    }
    randomArray[0] = i; 
    i = 0;
    while(randomNumber >= 10)
    {
        randomNumber = randomNumber - 10;
        i++;
    }
    randomArray[1] = i;   
    randomArray[2] = randomNumber;
}

bool RygGame::guessedNumber(const string& guessed)
{
    int green = 0;
    int yellow = 0;
    int red = 0; 
    bool exit;
    
    //Splits the users input into three integer variables
    int one = (guessed[0] - '0'); 
    int two = (guessed[1] - '0');
    int three = (guessed[2] - '0');
     
    //Compares the imput to the random number
    if(one == randomArray[0])
        green++;
    else if (one == randomArray[1] && randomArray[1] != two)
               yellow++;
          else if (one == randomArray[2] && randomArray[2] != three)
                      yellow++;
               else
                      red++;
        
    if(two == randomArray[1])
        green++;
     else if (two == randomArray[0] && randomArray[0] != one)
               yellow++;
          else if (two == randomArray[2] && randomArray[2] != three)
                      yellow++;
               else
                      red++;
        
    if(three == randomArray[2])
        green++;
     else if (three == randomArray[0] && randomArray[0] != one)
               yellow++;
          else if (three == randomArray[1] && randomArray[1] != two)
                      yellow++;
               else
                      red++;
    
    //If all three are correct them exit the while loop and print message    
    if(green == 3)
    {
         cout << "CONGRATILATOINS YOU HAVE GUESSED THE NUMBER!" << endl;
         exit = true;
    }
    //Otherwise just print how close you were    
    else
    {    
         cout << " You have " << red << "red" << endl;
         cout << "          " << green << "green" << endl;
         cout << "          " << yellow << "yellow" << endl;         
         exit = false;
    }
    return exit; 
}