July 2003
Intermediate to advanced
896 pages
45h 43m
English
Content preview from Actionscript Cookbook
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7.3. Affecting Playback
Problem
You want to control the playhead of a movie clip’s timeline.
Solution
Use the global functions and movie clip methods that control the playhead.
Discussion
You can use the timeline-affecting methods, shown in Table 7-1, to control the playback of a movie clip.
These methods are most meaningful for movie clips that have more than
one frame in their timelines. Therefore, movie clips created using
the createEmptyMovieClip( ) method cannot be
usefully affected by the timeline-affecting methods because they have
only one frame, and there is no way
to programmatically add more frames.
Table 7-1. The timeline-affecting methods
|
Method |
Description |
|---|---|
|
play( ) |
Plays the movie clip’s timeline from the current frame. If the timeline is already playing, this has no effect. |
|
stop( ) |
Stops the movie clip’s timeline at the current frame. If the timeline is already stopped, this has no effect. Flash continues to render the Stage and process events even when a clip is stopped. |
|
gotoAndPlay( ) |
Plays the timeline from a particular frame regardless of the current frame. The frame can be specified as a frame number or a frame label. |
|
gotoAndStop( ) |
Moves the playhead to a particular frame and stops the play head. The frame can be specified as a frame number or a frame label. |
|
nextFrame( ) |
Moves the playhead to the frame after the current frame and stops the play head. |
|
prevFrame( ) |
Moves the playhead to the frame just before the current frame and stops ... |
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