Mastermind

Create a simple version of the board game: Mastermind.

It must be possible to:

• choose the number of colors will be used in the game(2 - 20)
• choose the color code length(4 - 10)
• choose the maximum number of guesses the player has (7 - 20)
• choose whether or not will be repeated colors in the code

The game should display all the player guesses and the results of that guess.

Display(just an idea.):

Feature	Graphic Version	Text Version
Player guess	Colored circles	Alphabet letters
Correct color & position	Black circle	X
Correct color	White circle	O
None	Gray circle	-

A text version example: 1: ADEF - XXO-
Translates to:
first guess;
the four colors(ADEF);
result: two correct colors and spot, one correct color/wrong spot one color is not in the code.

Happy coding!

C++

<lang cpp>

1. include <iostream>
2. include <algorithm>
3. include <ctime>
4. include <string>
5. include <vector>

typedef std::vector<char> vecChar;

class master { public:

   master( size_t code_len, size_t clr_count, size_t guess_count, bool rpt ) {
       std::string color = "ABCDEFGHIJKLMNOPQRST";

       if( code_len < 4 ) code_len = 4; else if( code_len > 10 ) code_len = 10;
       if( !rpt && clr_count < code_len ) clr_count = code_len; 
       if( clr_count < 2 ) clr_count = 2; else if( clr_count > 20 ) clr_count = 20;
       if( guess_count < 7 ) guess_count = 7; else if( guess_count > 20 ) guess_count = 20;
       
       codeLen = code_len; colorsCnt = clr_count; guessCnt = guess_count; repeatClr = rpt;

       for( size_t s = 0; s < colorsCnt; s++ ) {
           colors.append( 1, color.at( s ) );
       }
   }
   void play() {
       bool win = false;
       combo = getCombo();

       while( guessCnt ) {
           showBoard();
           if( checkInput( getInput() ) ) {
               win = true;
               break;
           }
           guessCnt--;
       }
       if( win ) {
           std::cout << "\n\n--------------------------------\n" <<
               "Very well done!\nYou found the code: " << combo <<
               "\n--------------------------------\n\n";
       } else {
           std::cout << "\n\n--------------------------------\n" <<
               "I am sorry, you couldn't make it!\nThe code was: " << combo <<
               "\n--------------------------------\n\n";
       }
   }

private:

   void showBoard() {
       vecChar::iterator y;
       for( int x = 0; x < guesses.size(); x++ ) {
           std::cout << "\n--------------------------------\n";
           std::cout << x + 1 << ": ";
           for( y = guesses[x].begin(); y != guesses[x].end(); y++ ) {
               std::cout << *y << " ";
           }

           std::cout << " :  ";
           for( y = results[x].begin(); y != results[x].end(); y++ ) {
               std::cout << *y << " ";
           }

           int z = codeLen - results[x].size();
           if( z > 0 ) {
               for( int x = 0; x < z; x++ ) std::cout << "- ";
           }
       }
       std::cout << "\n\n";
   }
   std::string getInput() {
       std::string a;
       while( true ) {
           std::cout << "Enter your guess (" << colors << "): ";
           a = ""; std::cin >> a;
           std::transform( a.begin(), a.end(), a.begin(), ::toupper );
           if( a.length() > codeLen ) a.erase( codeLen );
           bool r = true;
           for( std::string::iterator x = a.begin(); x != a.end(); x++ ) {
               if( colors.find( *x ) == std::string.npos ) {
                   r = false;
                   break;
               }
           }
           if( r ) break;
       }
       return a;
   }
   bool checkInput( std::string a ) {
       vecChar g;
       for( std::string::iterator x = a.begin(); x != a.end(); x++ ) {
           g.push_back( *x );
       }
       guesses.push_back( g );
       
       int black = 0, white = 0;
       std::vector<bool> match( codeLen, false );

       for( int b = 0; b < codeLen; b++ ) {
           if( a.at( b ) == combo.at( b ) ) {
               match[b] = true;
               black++;
               continue;
           }

           for( int w = 0; w < codeLen; w++ ) {
               if( !match[b] && w != b && a.at( w ) == combo.at( b ) ) {
                   match[b] = true;
                   white++;
                   continue;
               }
           }
       }
       
       vecChar r;
       for( int b = 0; b < black; b++ ) r.push_back( 'X' );
       for( int w = 0; w < white; w++ ) r.push_back( 'O' );
       results.push_back( r );

       return ( black == codeLen );
   }
   std::string getCombo() {
       std::string c, clr = colors;
       int l, z;

       for( size_t s = 0; s < codeLen; s++ ) {
           z = rand() % ( int )clr.length();
           c.append( 1, clr[z] );
           if( !repeatClr ) clr.erase( z, 1 );
       }
       return c;
   }

   size_t codeLen, colorsCnt, guessCnt;
   bool repeatClr;
   std::vector<vecChar> guesses, results;
   std::string colors, combo;

};

int main( int argc, char* argv[] ) {

   srand( unsigned( time( 0 ) ) );
   master m( 4, 8, 12, false );
   m.play();
   return 0;

} </lang>

Output:

Enter your guess (ABCDEFGH): gbda

--------------------------------
1: A B C D  :  X O O -
--------------------------------
2: A A A E  :  O - - -
--------------------------------
3: E E E E  :  - - - -
--------------------------------
4: B B B C  :  X - - -
--------------------------------
5: D B A F  :  X O O -
--------------------------------
6: G B D A  :  X X X -

Enter your guess (ABCDEFGH): hbda


--------------------------------
Very well done!
You found the code: HBDA
--------------------------------