capsule.js

'use strict';

var Capsule = function(x, y, type, map) {
  Phaser.Sprite.call(this, game, x, y, 'capsules', 0);

  this.map = map;
  this.variant = type;
  this.moving = false;
  this.blocked = false;
  if (type === colorVariant.RED) {
    this.frame = 0;
  } else if (type === colorVariant.BLUE) {
    this.frame = 1;
  } else if (type === colorVariant.GREEN) {
    this.frame = 2;
  }
  this.animations.add('capture', [3, 4, 3, 4, 3, 4, 5], 20, false);
  this.captureSound = this.game.add.audio('capture');
  groups.capsules.add(this);
};

Capsule.prototype = Object.create(Phaser.Sprite.prototype);
Capsule.prototype.constructor = Capsule;

Capsule.prototype.update = function() {
  if (!this.moving) {
    var virus = findVirus(this.x, this.y);
    if (virus && virus.variant === this.variant) {
      virus.kill();
      this.capture();
    }
  }
};

Capsule.prototype.capture = function() {
  this.blocked = true;
  this.captureSound.play();
  this.animations.play('capture');
};

Capsule.prototype.move = function(direction) {
  var newX = this.x, newY = this.y;
  if (direction === DIRECTION.UP) {
    newY -= tileSize;
  } else if (direction === DIRECTION.DOWN) {
    newY += tileSize;
  } else if (direction === DIRECTION.LEFT) {
    newX -= tileSize;
  } else if (direction === DIRECTION.RIGHT) {
    newX += tileSize;
  }
  if (this.isMovable(newX, newY)) {
    this.moving = true;
    var tween = game.add.tween(this);
    tween.to({
      x: newX,
      y: newY
    }, 100, Phaser.Easing.Linear.None, true);
    tween.onComplete.add(function(){
      this.moving = false;
      this.animations.stop();
    }, this);
  }
  return this.moving;
};

Capsule.prototype.isMovable= function(x, y) {
  var isWall = this.map.hasTile(x / 32, y / 32, 'Walls');
  var isCapsule = findCapsule(x, y);
  var isChanger = findChanger(x, y);
  var virus = findVirus(x, y);
  var isVirus = (virus && virus.variant !== this.variant) ? true : false;
  return (!isWall && !isCapsule && !isVirus && !isChanger && !this.blocked);
};