Hour Of Code Star Wars Game

hourOfCode.js

var game = function () {
  setBackground("random");
  setMap("random");

  setDroid("R2-D2");
  setDroidSpeed("normal");
  playSound("R2-D2random");

  var moved = false;
  var points = 0;
  var pointsToWin = 1000;

  function handleMoved() {
    moved = true;

    // Start the game with a random number of pigs (between 10 and 2)
    startGame(getRandomNumber(2, 10));
  }

  function startGame(numberOfPigs) {
    addCharacters("PufferPig", numberOfPigs);
  }

  this.gotPig = function() {
    playSound("R2-D2sound1");
    playSound("PufferPigSound2");

    points += 100;
    addPoints(100);

    if(points >= pointsToWin){
      playSound("applause");
      endGame("win");
    } else {
      var min = 1,
          max = 2;

      addCharacters("Mynock", getRandomNumber(min, max));
      addCharacters("PufferPig", getRandomNumber(min, max));
    }
  }

  this.gotMynock = function() {
    playSound("R2-D2sound6");
    playSound("MynockSound1");

    points -= 50;
    removePoints(50);

    if(points > 0) {
      var min = 1,
          max = 2;

      addCharacters("Mynock", getRandomNumber(min, max));
      addCharacters("PufferPig", getRandomNumber(min, max));
    } else {
      endGame("lose");
    }
  }

  // Movements
  this.up = function() {
    if(!moved){
      handleMoved();
    }

    goUp();
  }

  this.down = function() {
    if(!moved){
      handleMoved();
    }

    goDown();
  }

  this.left = function() {
    if(!moved){
      handleMoved();
    }

    goLeft();
  }

  this.right = function() {
    if(!moved){
      handleMoved();
    }

    goRight();
  }

  // Utils
  function getRandomNumber(min, max){
    return randomNumber(min, max);
  }

  function addCharacters(type, number) {
    for(var i = 0; i < number; i++) {
      addCharacter(type);
    }
  }
};

var game = new game();

// Map movements
function whenUp() {
  game.up();
}
function whenDown() {
  game.down();
}
function whenLeft() {
  game.left();
}
function whenRight() {
  game.right();
}

// Map getting characters
function whenGetPufferPig(){
  game.gotPig();
}

function whenGetMynock() {
  game.gotMynock();
}