HTML5 Game Development by Example : Beginner's Guide - Second Edition

Time for action – adding game logic to the matching game

We have prepared the game environment in the last example and decided the game logic should be the same as playing a real deck. It is time to code the JavaScript logic now:

1. Let's begin from our last matching game example. We have styled the CSS, and now, it is time to add the game logic in the js/matchgame.js file.
2. The game is to match pairs of playing cards. We have 12 cards now, so we need six pairs of playing cards. Put the following code in the js/matchgame.js file. The array declares six pairs of card patterns:

   var matchingGame = {};
   matchingGame.deck = [
     'cardAK', 'cardAK',
     'cardAQ', 'cardAQ',
     'cardAJ', 'cardAJ',
     'cardBK', 'cardBK',
     'cardBQ', 'cardBQ',
     'cardBJ', 'cardBJ',
   ];

3. We aligned ...