private void Move(Scene scene){
		//hard coded
		List<Sphere> bubbleList = scene.getBubbleSphList();
		if(!bubbleList.get(0).getClass().toString().contains("BubblePair")){
			Sphere bubble1 = bubbleList.get(0);
			Sphere bubble2 = bubbleList.get(1);
			bubble1.getCenter().x += 2;
			bubble2.getCenter().x += 10;
			
			if(Vector3D.Substract(bubble1.getCenter(), bubble2.getCenter()).Length() < bubble1.getRadius() + bubble2.getRadius()){
				bubbleList.remove(0);
				bubbleList.remove(0);
				BubblePair bubblePair1 = new BubblePair(bubble1, bubble2);
				bubbleList.add(0, bubblePair1);
				System.out.println("integrated");
			}
		}
	}