Sine Wave Illustration

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

package
{
import flash.display.Sprite;
import flash.events.Event;
public class Wave2 extends Sprite {
private var angle:Number = 0;
private var centerY:Number = stage.stageHeight/2;
private var range:Number = 50;
private var xspeed:Number = 1;
private var yspeed:Number = .05;
private var xpos:Number;
private var ypos:Number;
public function Wave2() {
init();
}
private function init():void {
xpos = 0;
graphics.lineStyle(1, 0, 1);
graphics.moveTo(0, centerY);
addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
public function onEnterFrame(event:Event):void {
xpos += xspeed;
angle += yspeed;
ypos = centerY + Math.sin(angle) * range;
graphics.lineTo(xpos, ypos);
}
}
}