{ (define LIBNAME "Mastermind")
  (include "head.tinc") }

<p>The teachpack <code>master.ss</code> provides the operation
<code>master</code>. It implements a GUI for playing a simple
master mind-like game. The player clicks on two colors and the
program responds with an answer that indicates how many colors
and places were correct.</p>

<p>The function <code>master</code> consumes the function
<code>check-guess</code>, which is the key component of
TeachMasterMind. The function <code>check-guess</code> consumes the two
colors that the player guessed and the two players that the master chose
(randomly at the beginning of the game). It compares the colors and
produces an appropriate symbol. </p>

<p>The teachpack provides only one operation:
<menu>
  <li><code>{(idx master)} : check-guess -> symbol; </code> <br>
  It prompts the user for two colors (symbols) and uses
  <code>check-guess</code> to play mastermind. <br>
  If the guesses completely match the set-up, <code>check-guess</code> must
  return <code>'PerfectGuess</code>; otherwise it must return a different,
  informative symbol.

</menu>

{(include "foot.tinc")}