Animation Programming: A Digital Clock and an Analog Clock

Abstract

All of the event-driven games support different action-event update-repaint chains that are under the players’ controls to discretely drive the games for dynamically updating and repainting their output scenes. If we can continuously drive the chains, the output scenes can also be continuously changed, which makes an illusion of animation. Java provides a built-in class Thread that can be constructed as a “game loop” that continuously drives an update-repaint chain for realizing the illusion of animation. This chapter goes through a digital clock and an analog clock to discover the “game loop” for introducing the programming on sprite-based animation.