how to access dynamic/static movieclip with linked class? - actionscript-3

Question

hi this question still bothering me. It looks simple.
I got movieclips in the lib and on stage which has a link-class "Box.as" and another which linked to "Circle.as".
I want to access the movieclip of the Box.as from the Circle.as or vice-versa.
public class Circle extends MovieClip
{
private var _circle:MovieClip;
private var _box:Box;
public function Circle()
{
_circle = new MovieClip();
if (stage) onStage();
else this.addEventListener(Event.ADDED_TO_STAGE,onStage);
}
private function onStage(e:Event = null)
{
_circle = stage.getChildByName("blue_circle") as MovieClip;
this.addEventListener(Event.ENTER_FRAME,hitTarget);
}
private function hitTarget(e:Event):void
{
if (_circle.hitTestObject(_box.mc)) //test if 2 movieclips are colliding
{ // _box.mc is just created the same as _circle
trace("hi");
}
}
this code ain't workin. And I wanted to use one that can access even if the movieclip wasn't on stage(which has no instance name).
Hope you can help me. Thanks.

Answer 1

Looks like you're really close! You just forgot to create a new instance of your class Box. So inside your public function Circle() just add
_box = new Box();
Let me know if that works. If it doesn't, there might be something wrong with your linking...
Your whole code will look like this
public class Circle extends MovieClip
{
private var _circle:MovieClip;
private var _box:Box;
public function Circle()
{
_box = new Box();
_circle = new MovieClip();
if (stage) onStage();
else this.addEventListener(Event.ADDED_TO_STAGE,onStage);
}
private function onStage(e:Event = null)
{
_circle = stage.getChildByName("blue_circle") as MovieClip;
this.addEventListener(Event.ENTER_FRAME,hitTarget);
}
private function hitTarget(e:Event):void
{
if (_circle.hitTestObject(_box.mc)) //test if 2 movieclips are colliding
{ // _box.mc is just created the same as _circle
trace("hi");
}
}