flash on 2010-2-11

/**
 * Copyright peacelife_wonder ( http://wonderfl.net/user/peacelife_wonder )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/moBk
 */

package {
    import flash.display.Sprite;
    import flash.events.Event;
    public class BallFollowingMouse extends Sprite {
        private var ballCount:uint = 50;
        private var speed:Number = 0.2;
        public function BallFollowingMouse() {
        	   for  ( var i:uint = 0; i < ballCount; i++){
        	   	addChild(new Ball(this,200)); //プライベートなクラスBallを丸で描く
        	   }
        	   addEventListener(Event.ENTER_FRAME, followMouse);
        }
        private function followMouse(eventObject:Event):void {
        	dispatchEvent(new BallEvent(BallEvent,FOLLOW, mouseX, mouseY, speed));
        }
    }
}
import flash.display.Sprite;
import flash.display.Graphics;
import flash.events.Event;
class Ball extends Sprite {
	private const deceleration:Number = 0.2;
	private var angle:Number;
	private var radius:Number;
	private var sizeRate:Number = 0.1;
	public function Ball(timeline:Sprite, maxRadius:Number) {
	var randamRate:Number = Math.random();
	angle = 2 * Math.random();
	radius = maxRadius * randomRate;
	createBall(randomRate);
	timeline.addEventListener(BallEvent.FOLLOW, follow);
	}
	private function createBall(randomRate:Number):void {
		var myGraphics:Graphics = graphics;
		myGraphics.beginFill(Math.floor(0xFFFFFF * randomRate) + 1;
		myGraphics.drawCircle(0, 0, radius * sizeRate);
		alpha = 1 - randomRate;
	}
	private function follow(eventObject:BallEvent):void {
		var randomRate:Number = Math.random();
		angle += eventObject.speed;
		angle%=Math.PI*2;
		var nX:Numbar=eventObject.targetX