What we'll cover in this chapter:
One of the goals of these interactive animations is to create a smooth user experience, and this interaction is usually through the mouse or touch screen. Mouse and touch events were introduced in Chapter 2, but, so far, you haven't done much with them; now, you'll get some hands-on practice.
In this chapter, you take the first steps into responding to user interaction. You learn how to handle dragging, dropping, and throwing, but first, let's get started with the basics of press and release.