Macromedia Flash Mx 1002004 Actionscript Training From The Source [Electronic resources] نسخه متنی

Lesson 17. Scripting for Sound

Few things enhance the way we experience something more than sound. Not only does sound provoke an almost instantaneous emotional response, it also provides dimension. When standing in the middle of a crowded room, you can close your eyes and easily determine the relative position of people and clattering items just by listening. In a Flash presentation you can employ sound to provide your user with context as well as to create an engaging experience.

Flash's sound controls will make this basketball sound like the real thing.

A thorough understanding of how to control sound dynamically is key to creating everything from games to custom MP3 players. In this lesson, we'll demonstrate Flash's versatile sound controls by emulating a bouncing basketball inside an arena. The user can drag the ball within a predefined area of the screen. As the ball is dragged, the volume and panning of the bounce will be controlled dynamically to indicate its current location. You'll also see how Flash enables you to add and control sounds in your movie without placing them on the timeline.

WHAT YOU WILL LEARN

In this lesson, you will:

Explore the uses of sound with ActionScript

Learn how to create a Sound object

Drag an object within a visual boundary

Control the volume of a Sound object

Control the panning of a Sound object

Add sounds to your movie by using the attachSound() method

Start, stop, and loop sounds dynamically

APPROXIMATE TIME

This lesson takes approximately one and one half hours to complete.

LESSON files

Starting File:

Lesson17/Assets/basketball1.fla

Completed Project:

basketball6.fla