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| Tutorial |
Chapter 14 272
To create a custom cursor, you design the cursor movie clip on the stage. Then in ActionScript
you hide the standard cursor and track the movement of the custom cursor. To hide the standard
cursor, you use the hide method of the built-in Mouse object. To use a movie clip as the custom
cursor, you use the startDrag action.
Actions attached to a movie clip to create a custom cursor (see customCursor.fla)
To create a custom cursor:
1 Create a movie clip to use as a custom cursor.
2 Select the movie clip instance on the Stage.
3 Choose Window > Actions to open the Actions panel if it is not already visible.
4 To hide the standard cursor, in the Actions toolbox, click the Objects category, click the Movie
category, click Mouse, click Methods, and double-click hide.
The code should look like this:
onClipEvent(load){
Mouse.hide();
}
5 To apply the new cursor, in the Actions toolbox, click the Actions category, then click Movie
Clip Control and double-click startDrag.
6 To limit the mouse movement, select the Expression box and type this for the target. Then
select Lock Mouse to Center and Constrain to Rectangle, and enter values. For example, you
might enter the following:
L: 0
T: 46
R: 400
B: 280
Your code should look like this:
onClipEvent (load) {
Mouse.hide();
startDrag(this, true, 0, 46, 400, 280);
}
7 Choose Control > Test Movie to test your custom cursor.
Buttons still function when you use a custom cursor. It’s a good idea to put the custom cursor on
the top layer of the Timeline so that it moves in front of buttons and other objects as you move
the mouse in the movie.
For more information about the methods of the Mouse object, see the online ActionScript
Dictionary in the Help menu.
Getting the mouse position
Tracking the mouse position gives you information about user movement in your movie. This
information allows you to tie user behavior to movie events. You can use the _xmouse and
_ymouse properties to find the location of the mouse pointer (cursor) in a movie. Each Timeline
has an _xmouse and _ymouse property that returns the location of the mouse within its
coordinate system. The position is always relative to the registration point. For the main Timeline
(_level0), the registration point is the upper left corner.
The _xmouse and _ymouse properties within the main Timeline and a movie clip Timeline
(mouse_position.fla)
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