Template file to start with Nodebots Simon game

memory-game.template.js

var five = require('johnny-five');
var board = new five.Board();

var buttonCounter = 0;
var piezoSongs = ['C4', 'E4'];
var buttonsSequence = [];
var leds = [];
var piezo = {};
var timeoutIds = [];

/**
 * Returns randomic integer based on a range
 * min: minimum value
 * max: maximum value
 */
function getRandomInt(min, max) {
  return Math.floor(Math.random() * (max - min + 1) + min);
}

/**
 * Generates a random number
 */
function generateRandomNumber() {
  return getRandomInt(0, 1);
}

/**
 * Starts the simon game
 */
function startGame() {
  console.log('STARTING...');
  buttonCounter = 0;
  buttonsSequence = [];

  // starts with 3 choices
  buttonsSequence.push(generateRandomNumber());
  buttonsSequence.push(generateRandomNumber());
  buttonsSequence.push(generateRandomNumber());

  blinkLedsInSequence();
}

/**
 * Makes the LED Blink in sequence and Piezo emit a sound based on
 * the order added in memory
 */
function blinkLedsInSequence() {
  var sequenceLength = buttonsSequence.length;
  var currentButtonSequenceCounter = 0;

  timeoutIds.push(
    setTimeout(function() {

      currentButtonSequenceCounter = buttonsSequence[buttonCounter];
      // This console shows you the current sequence in the memory game
      buttonCounter++;
      console.log('SEQUENCE NUMBER', buttonCounter, ': CLICK BUTTON', currentButtonSequenceCounter);
      if(buttonCounter < sequenceLength) {
        // turning turn led
        blinkLedsInSequence();
      } else {
        // This console shows you the current sequence in the memory game
        console.log('START GAME: ', buttonsSequence);
        buttonCounter = 0;
      }

      leds[currentButtonSequenceCounter].on();
      piezo.play({ song: piezoSongs[currentButtonSequenceCounter] });

      // turning off led
      timeoutIds.push(
        setTimeout(function() {
          leds.off();
          piezo.off();
        }, 1000));

    }, 2000));
};

board.on('ready', function() {

  leds = new five.Leds([12, 3]);
  var buttons = new five.Buttons([13, 2]);

  piezo = new five.Piezo(11);

  buttons.on('press', function(button) {
    if (buttonsSequence.length) {
      var index = buttons.indexOf(button);

      console.log('Pressed: button', button.pin, 'led', leds[index].pin);

      // How can I turn on a specific LED?

      piezo.play({ song: piezoSongs[index] });
    }
  });

  buttons.on('release', function(button) {
    if (buttonsSequence.length) {
      var index = buttons.indexOf(button);

      console.log('Released: button', button.pin, 'led', leds[index].pin);

      // How can I turn off LEDS and Piezo?

      if(buttonsSequence[buttonCounter] === index) {
        buttonCounter++;
        if(buttonCounter === buttonsSequence.length) {
          console.log('>>> You won!');
          buttonCounter = 0;
          buttonsSequence.push(generateRandomNumber());
          blinkLedsInSequence();
        }
      } else {
        timeoutIds.forEach(function(timeoutId) {
          clearTimeout(timeoutId);
        });

        console.log('>>> Error in sequence. try again!');
        setTimeout(startGame, 3000);
      }
    }
  });

  // Starting the game
  setTimeout(startGame, 100);

});