LiquidView.js

function initParticles() {
        _particles = _this.initClass(ParticlePhysics, new VerletIntegrator());
        _particles.addBehavior(new EdgeBehavior(false, true));
        _gravity = new Force(new Vector2(0, 200));
        _particles.addBehavior(_gravity);

        _collision = new Collision();
        _particles.addBehavior(_collision);

        _emitter = _this.initClass(Emitter, new Vector2(Stage.width/2, Stage.height/2), 0);
        _emitter.addInitializer(makeVisible);
        _emitter.tick = 0;
        _particles.addEmitter(_emitter);

        _repulse = new Attractor(new Vector2(0, -99999), 100, -3500);
        _particles.addBehavior(_repulse);
        _particles.addBehavior(new ResetBehavior(needsReset));
        _particles.addBehavior(new ColorBehavior());
    }

    function initSprites() {
        for (var i = 0; i < 750; i++) {
            var sprite = PIXI.Sprite.fromImage('assets/images/particle.png');
            sprite.width = sprite.height = 40;
            sprite.visible = false;
            sprite.anchor.x = sprite.anchor.y = 0.5;
            sprite.position.y = -9999;
            sprite.tint = 0x43b2ff;
            sprite.color = new Color('#ffffff');

            _this.container.addChild(sprite);

            var particle = new Particle(new Vector2(), 0.2, 17);
            particle.sprite = sprite;
            particle.saveTo = sprite.position;

            _emitter.addToPool(particle);
        }
    }

    function loop() {
        _gravity.force.x = Utils.range(Mobile.Accelerometer.x, -5, 5, -70, 70);
        _particles.update();
    }