Description
Many games require a moving or scrolling background.
A scrolling background works by moving a tiled pattern
beneath a mask to give the appearance of an infinite
pan.
This sample file requires the latest version of the Macromedia Flash Player.
Download it now.
This sample demonstrates how you can create a randomly
generated star field that is tiled so that it loops
both vertically and horizontally.
Key features and ActionScript elements
Mask layers, draggable movie clips, Math object, duplicateMovieClip,
conditions (if...), logical NOT(!)
Instructions
Click Generate Star Field to begin. Each time you click
it, a new field is generated. Manipulate the sliders
to set the star field in motion. Notice how the scrolling
background repeats seamlessly. Click Toggle Edge Lines
to hide the dotted lines that mark the edges of the
tiles.
This sample file requires the latest version of the Macromedia Flash Player.
Download it now.
The source file for this movie (Scrolling_starfield.fla)
can be found in the Flash MX/Samples folder.
