Moving in 3D Space
Flash CS4 ActionScript 3.0 Tutorial
How to Add 3D Movement to Movie Symbols with Flash ActionScript
The 3D feature was added to Flash in CS4. To make 3D work you must save your swf files to display in Flash Player 10. For more information, see topic in Flash CS4 section titled, Saving a swf Movie. For information 3D rotation, see topic, Rotating in 3D Space.
As you move in Flash's 3D environment, movement is limited to X, Y and Z directions. To move in 3D space, the object must be a Movie Symbol.
Once you understand how the object moves in 3D space, you can move an object with ActionScript on the stage. In this example we will demonstrate both ways to move an object in 3D.
Open a new Flash document and add a second layer.
Name the upper layer Actions and the lower one Content.
Click frame one of the Content layer and using the Rectangle tool, add a rectangle to the stage.
Select the rectangle and convert it to a Movie Symbol (F8).
Select the rectangle assign it an instance name of box_mc in the Properties panel.
Open the 3D Position and View section in the Properties panel.
Changing the X value moves the object left and right. Positive values are to the right.
Adjusting the Y value moves the object up and down. The values increase as the object moves down.
Adjusting the Z value moves the object in and out. The values increase as the object moves away towards the horizon.
Option double-click (PC - Alt double-click) frame one of the Actions layer.
Copy/Paste the following code to the ActionScript panel.
Publish your movie by pressing Cmd/Return (PC - Ctrl/Enter). The box travels towards you in the Z direction.
Dissecting the Code
The first line of the code at Step Eleven sets the box_mc starting position at 100 in the Z direction.
An event listener is added to make the function onZMove fire at the project's current frame rate. If the fla file was set to 20 frames per second, the function would run 20 times per second.
Each time the function runs, the box moves 5 units in the Z direction.