Tutorial Flash : ajouter des fonctions à vos objets

Flash has numerous built-in objects like MovieClip, String, Math, Array, Color, and Object. Each has useful methods and properties that are defined in the Actionscript manual. Have you ever wanted to play Dr. Frankenstein with these objects? For instance, you´d like every movie clip to have a method to flip itself horizontally or vertically, something like ball.flipX(). In other words, each movie clip in your movie would automatically inherit your flipX() method.