smileyMat.setTexture(0, "res/texture/smiley.png");
smileyMat.setTexture(1, "res/texture/frown.png");
passengerEmitter = new Emitter(10, 4000);
passengerEmitter.setMaterial(smileyMat);
passengerEmitter.setVelocity(new Vector3f(0,0.5f,0));
passengerEmitter.setSizes(15, 40);
passengerEmitter.setSizesRandomness(5, 10);
passengerEmitter.setTranslation(new Vector3f(0,0.6f,0));
passengerEmitter.setStartPositionRandomness(new Vector3f(0.25f,0.15f,0.25f));
passengerEmitter.pause();
this.capacity = DEFAULT_CAPACITY;
this.passengers = new ArrayList();
this.calculateTotalPassengerWeight();