package {
import flash.display.MovieClip;
import flash.display.Sprite;
import flash.events.MouseEvent;
// Document Class
public class DocumentClass extends MovieClip {
private var _circle:Drag_circle;
private const maxBalls:int=100;
public function DocumentClass() {
var i:int;
for (i=0; i <= maxBalls; i++) {
_circle=new Drag_circle ;
_circle.scaleY=_circle.scaleX=Math.random();
_circle.x=Math.round(Math.random() * stage.stageWidth –

_circle.width);
_circle.y=Math.round(Math.random() * stage.stageHeight –

_circle.height);
addChild(_circle);
}
}
}
}
import flash.display.Sprite;
import flash.events.MouseEvent;
class Drag_circle extends Sprite {
private var _circle:Sprite;
public function Drag_circle() {
_circle=new Sprite ;
_circle.graphics.beginFill(0xff0000);
_circle.graphics.drawCircle(-5,-5,10);
_circle.graphics.endFill();
addChild(_circle);
this.buttonMode=true;
_circle.addEventListener(MouseEvent.CLICK,onClick);
_circle.addEventListener(MouseEvent.MOUSE_DOWN,onDown);
_circle.addEventListener(MouseEvent.MOUSE_UP,onUp);
}
private function onClick(event:MouseEvent):void {
trace("circle clicked");
}
private function onDown(event:MouseEvent):void {
_circle.startDrag();
}
private function onUp(event:MouseEvent):void {
_circle.stopDrag();
}
}