Collision Detection

At this point you should be familiar with functions, animations, and if statements. This tutorial introduces collision detection, which allows you to determine when two shapes touch. If you can determine that two shapes touch, you can trigger some action- think of detecting when the user has moused over a button, or when a game character touches the floor or a badguy, or when your animation reaches a certain state.

This is a companion discussion topic for the original entry at