oval

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lines:65
license : MIT License
modified : 2009-05-16 03:39:51

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package {
    import flash.display.*;
    import flash.events.*;
    import flash.geom.Matrix;
    [SWF(width = "465", height = "465", frameRate = "60", backgroundColor = "#000000")]
    public class Oval extends Sprite {
        private var _num:int = 100;
	private var _centerX:Number = stage.stageWidth/2;
	private var _centerY:Number = stage.stageHeight / 2;
	private var _centerAngle:Number = 0;
	private var _radiusX:Number = 150;
	private var _radiusY:Number = 100;
	private var _speed:Number = .01;
	private var _acc:Number = 0;
	private var _ballArray:Array = [];
	private var _angleArray:Array = [];
        public function Oval() {
            var degree:Number;
	    var radians:Number;
	    var ball:Ball;		
	    degree = 360 / _num;			
	    for (var i:int = 0; i < _num; i++ ) {
		ball = new Ball();
	        _ballArray[i] = ball;				
		radians = Math.PI / 180 * degree * i;
		_angleArray[i] = radians;
		addChild(ball);
	    }
	    addEventListener(Event.ENTER_FRAME, onEnterFrame);
        }
        private function onEnterFrame(e:Event):void {
	    var ball:Ball;
	    var angle:Number;
	    var radians:Number;			
	    for (var i:int = 0; i < _num; i++ ) {
		ball = _ballArray[i];
		angle = _angleArray[i] +_acc;
		radians = Math.PI / 180 * angle;
		ball.x = _centerX + Math.sin(angle) * _radiusX;
		ball.y = _centerY + Math.cos(angle) * _radiusY;
		ball.scaleX = ball.scaleY = Math.tan(radians) * 1;
		_acc += _speed;
	    }
        }
    }
}
import flash.display.Sprite;
import flash.events.Event;
import flash.geom.*;
class Ball extends Sprite {
    private static const _COLOR:uint = Math.random() * 0xFFFFFF;
    private var cColor:uint;
    public function Ball() {
        graphics.beginFill(_COLOR, 1);
	graphics.drawCircle(0, 0, 35);
	graphics.endFill();
	addEventListener(Event.ENTER_FRAME, onEnterFrame);
    }
    private function onEnterFrame(e:Event):void {
	cColor = Math.random() * 0xFFFFFF;
	var ct:ColorTransform = new ColorTransform();
	ct.color = cColor;
	transform.colorTransform = ct;
    }
}

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