Forked from:: YasSo's うずまき

forked from: うずまき

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lines:30
license : All rights reserved
modified : 2009-11-03 20:26:46

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// forked from YasSo's うずまき
// write as3 code here..
package {
    import flash.display.Sprite;
    import flash.events.Event;

[SWF(backgroundcolor="#FFFFFF")]

public class Test extends Sprite {
        private var center_x:Number;
        private var center_y:Number;
        private var n:Number;

public function Test() {
            addEventListener(Event.ADDED_TO_STAGE, init);
        }
        
        private function init(e:Event):void {
            center_x = stage.stageWidth/2;
            center_y = stage.stageHeight/2;
            addEventListener("enterFrame", draw);
            n = 0;
        }

private function draw(e:Event):void {
            this.graphics.clear();
            this.graphics.lineStyle(1, 0x00ff00);
            if (++n >= 360) n = 0;
            for (var r:Number = 0; r <= 360; r++) {
                var x:Number = Math.cos(r*3.14/180*n)*r/2;
                var y:Number = Math.sin(0.01*r*3.14/180*n)*r/2;
                if (r == 0) this.graphics.moveTo(x+center_x, y+center_y);
                this.graphics.lineTo(x+center_x, y+center_y);
            }
        }
    }
}

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