How to import class from user actionscript file - actionscript-3

Question

I just want to create a class with two Numbers and a Bitmap. You can't have nested classes in a Timeline script so I figured I'd make .as file, namely "node.as". But I cannot for the life of me figure out how to import this class into the Timeline script so that I can use the class in my Timeline script.
Please help!

Answer 1

You should be able to create a package to accomplish this. The basic format is:
// folder specifies the relative folder of the package
package myfolder {
// whatever other classes you need
import flash.display.*;
import flash.events.*;
// base this on whatever class you need (in this case MovieClip)
public class myclass extends MovieClip {
private var myvariable: String;
// constructor
public function myclass() {
}
// functions only for use within the class
private function myprivatefunction() {
}
// functions for use by the rest of the world
public function mypublicfunction() {
}
}
}
The constructor is called when you create a new instance of the Class-- this is where you would do your initialization. Then, in your timeline, just add something like:
import myclass;
var myclassinstance = new myclass();
myclassinstance.mypublicfunction(); // call a function in the class
See adobe's help for more details.
So I tried this:
package {
import flash.display.*;
public class Node {
public var fX:Number;
public var fY:Number;
public var bmp:Bitmap;
public function Node() { }
}
}
And put it in a file called Node.as (note I needed to add the flash.display import, and the capital "N" in the filename). In a FLA file in the same directory, I added this to the first frame script:
import Node;
var node = new Node();
trace("node="+node);
It compiled and ran without error. There must be something else going on? What version of Flash and of ActionScript are you using?