This is the first definitive and authoritative book available on ActionScript 3 animation techniques. ActionScript animation (rather than tweened animation created within the Flash IDE) is a very popular discipline for Flash developers to learn. It allows for the creation of smaller, more realistic, more dynamic, animated Flash movies, with realistic physics, such as gravity and collisions. This essential skill set has been learned by many Flash developers through Keith Peter's best-selling ActionScript animation book — Foundation ActionScript Animation: Making things move. It has now been updated to ActionScript 3, Adobe's new and improved scripting language. All of the code has been updated, and some new techniques have been added to take advantage of ActionScript 3's new features, including the display list and new event architecture. The code can be used with the Flash 9 IDE, Flex Builder 2, or the free Flex 2 SDK.