Mastermind
Mastermind is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.
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>
- include <iostream>
- include <algorithm>
- include <ctime>
- include <string>
- 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 --------------------------------