/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
*                                         *
* File: Mastermind.c                               *
*                                         *
* Purpose: a nice little game which challenge you to use your mind and find the  *
*      secret number...                            *
*                                         *
* Copyright (C) 2004 Scorpius, scorpius_unknown@yahoo.com, all rights reserved  *
*                                         *
* Mastermind is free software; you can redistribute it and/or           *
* modify it under the terms of the GNU General Public License           *
* as published by the Free Software Foundation; either version 2         *
* of the License, or (at your option) any later version.             *
*                                         *
* Mastermind is distributed in the hope that it will be useful,          *
* but WITHOUT ANY WARRANTY; without even the implied warranty of         *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the          *
* GNU General Public License for more details.                  *
*                                         *
* You should have received a copy of the GNU General Public License        *
* along with this program; if not, write to the Free Software           *
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.   *
*                                         *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */


#include <stdio.h>
#include <strings.h>
#include <stdlib.h>
#include <time.h>

void manual(void);

int main(void)
{
  const char *set="123456";
  char secret[6];
  char guess[6];
  char again;
  int guess_check[5];
  int secret_check[5];
  char play='0';
  int run;
  int i,j;
  
  printf("Welcome to mastermind.\n");
  printf("press 1 to play, press 2 for help: ");
  play=getch();
  putchar(play);
  
  if (play=='2')
  {
    manual();
  }
  if((play!='1')&&(play!='2'))
  {
    printf("\nInvalid action!\n");
    return EXIT_FAILURE;
  }  
  again='y';
  while((again=='y')||(again=='Y'))
  {  
    int get_random;
    srand((unsigned)time(NULL));
    for(get_random=0;get_random<5;get_random++)
    {
        secret[get_random]=set[rand()%6];
    }
    secret[5]='\0';/*did this to make safe input*/
    for(run=1;run<9;run++)
    {    
        printf("\nEnter guess %d: ",run);
        for(i=0;i<5;i++)/*get the input*/
        {
            guess[i]=getch();
            putchar(guess[i]);
           
        }
        guess[5]='\0';/*did this to make safe input*/
    
        printf("\n%s\t",guess);
        int test=strcmp(guess,secret);/*check if complete string is correct*/
        if(test==0)
        {
            printf("*****");
            printf("\nCongratulations!!"); 
            printf("\nYou needed %d guesses to win, the secret code was: %s",run,guess);
            break;
        }
    
        for(i=0;i<5;i++)/*set check back to 0*/
        {
        secret_check[i]=0;
        guess_check[i]=0;
        }
        for(i=0;i<5;i++)
        {
            if(guess[i]==secret[i])/*if number is correct and at the right place*/
            {
                printf("*");
                guess_check[i]=1;
                secret_check[i]=1;
            }
                 
        }  
        for(i=0;i<5;i++)/*here's the loop to check if a digit is correct but not at the right place,*/
        {        /*then print 'o', and make sure the same digit is not used twice*/
            for(j=0;j<5;j++)
            {
                if((guess[i]==secret[j])&&(i!=j)&&(guess_check[i]!=1)&&(secret_check[j]!=1))
                {
                   printf("o");
                   guess_check[i]=1;
                   secret_check[j]=1;
                }
            }
        }
    }    
    if(run>8)/*only print the next line if user did not guess the number*/
    {
        printf("\n\nUnfortunately you did not guess it, the secret code was: %s\n",secret);
    }    
    printf("\nPlay again (y/n)?: ");
    again=getch();
    
  }
  return EXIT_SUCCESS; /*exit success, since the program runs like it should*/  
}  

  
void manual(void)/*the help function*/
{  
   printf("\n\nMastermind, Copyright (C) 2004, Scorpius, scorpius_unknown@yahoo.com\n"); 
   printf("\nThe goal of the game is to guess the secret code.\n");
   printf("The code contains 5 random numbers from 1 - 6.\n");
   printf("You have 8 tries for this.\n");   
   printf("Every \'*\' you see next to your input, \n");
   printf("means that you have one number correct and\n");
   printf("at the right place.\n");
   printf("Every \'o\' you see next to your input,\n");
   printf("means that you have one number correct, but\n");
   printf("not at the right place.\n");
   printf("\nLet's get started!\n\n");
   
}