memory-game

Installing memory-game library

• To install memory-game library in your project just run the following command:

  npm i @tive-labs/memory-game

Using memory-game library

1. Import the library

   • At the beginning of the js file in which you are going to use the library import as follows:

   import memoryGame from @tive-labs/memory-game

2. Instantiate memoryGame

   • First of all it's necessary instantiate memoryGame as follows:

   const mGame = memoryGame();

3. initGame

   • Next it's necessary initialize the game using the initGame method.

   const init = mGame.initGame('animals', 'easy');

   • initGame receives two parameters, category and level.

     • Category must be 'animals' or 'numbers'
     • Level must be 'easy' or 'medium' or 'hard'

   • initGame returns an object with an array of hidden cards (cards), an array with the entire cards data, and the length of the array (xLength and yLength):

   {
       cards,
       cardsResult,
       xLength,
       yLength
   }

4. selectCard

   • To play, it's necessary select cards to discover it using the handleCardSelected method.

   let selected = mGame.handleCardSelected(0, 1);

   • handleCardSelected receives two parameters, position x and position y.

     • x must be a number representing the x position (vertical position) on the 2d array.
     • y must be a number representing the y position (horizontal position) on the 2d array.

   • handleCardSelected returns an object with three properties:

   {
       cards,
       selectedCardData,
       cardMatch,
   }

   • cards: Contains the updated array of cards.
   • selectedCardData: Contains an object with the data of the discovered card (id, name, shortName)
   • cardMatch: Contains an object with a boolean value (isNewMatched) that indicates if exist a new card match, and an object (matchedCards) with the positions of the matched cards (x_y):

   {
       isNewMatched,
       matchedCards: {
           firstCard,
           lastCard
       }
   }

5. Verify winner

   • Another way to verify if exist a winner is using the getIsThereAWinner method.

   let isThereAWinner = mGame.getIsThereAWinner()

6. Handling Errors

   • Use 'try catch' to handle errors:

   try {
       let selected = mGame.handleCardSelected(0, 1);
   } catch(error) {
       console.log(error);
   }

Class Diagram