flash on 2010-2-24

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

package {
    import flash.display.*;
    import flash.events.Event;
    
    [SWF(frameRate="30", width="465", height="465")]
    public class MyFirstAnimation extends Sprite {
        private var _circle:Circle
        
        public function MyFirstAnimation() {
            _circle = new Circle(10);
            _circle.alpha = 0.25;
            _circle.vx = 3;
            _circle.vy = 4;
            
            _circle.x=465/2;
            _circle.y=465/2;
            
            this.addChild(_circle);
            
            this.addEventListener(Event.ENTER_FRAME, enterFrameHandler);
        }
        private function enterFrameHandler(e:Event):void{
        		_circle.move;
        }
    }
}

import flash.display.Sprite;

class Circle extends Sprite{
	public var vx:Number;
	public var vy:Number;
	public var radius:Number;
	
	public function Circle(_radius:Number, _fillColor:uint = 0x000000){
		graphics.beginFill(_fillColor);
		graphics.drawCircle(0,0,_radius);
		graphics.endFill();
		radius = _radius;
	}
	public function move():void{
		x += vx;
		y += vy;	
	}
}