flash on 2011-4-2

/**
 * Copyright points ( http://wonderfl.net/user/points )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/9xxR
 */

package {
    import flash.events.Event;
    import flash.text.TextField;
    import flash.display.Sprite;
    public class FlashTest extends Sprite {
        private var tf:TextField;
        private var time:int=0;
        public function FlashTest() {
            tf=new TextField();
            tf.text="Hello World!";
            tf.textColor=0xff0000;
            tf.x=200
            tf.y=100;
            this.addChild(tf);
            //
            this.addEventListener(Event.ENTER_FRAME,loop);
        }
        private function loop(e:Event):void{
        if(time==10){
                var ball:Ball=new Ball(10+20*Math.random(),Math.random()*0xffffff);
                ball.x=450*Math.random();
                this.addChild(ball);
                time=0;
        }else{
            time++
    }
}
    }
}
import flash.events.Event;
import flash.display.Shape;
class Ball extends Shape{
    public var vy:Number=1;
    public var life:int=0
    public function Ball(rad:Number,col:int){
        this.graphics.beginFill(col);
        this.graphics.drawCircle(0,0,rad);
        this.graphics.endFill();
        this.addEventListener(Event.ENTER_FRAME,move);
    }
    public function move(event:Event):void{
        vy+=0.98;
        this.y+=vy;
        if(this.y>=450){
            this.y=450;
            if(Math.abs(vy)<0.1){
            vy=0;
            }else{
                vy*=-0.75;
            }
        }
        life++;
        if(life>300){//自壊
            this.removeEventListener(Event.ENTER_FRAME,move);
            parent.removeChild(this);
        }
    }
}