MathTest

/**
 * Copyright pitombo ( http://wonderfl.net/user/pitombo )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/pm8g
 */

package 
{
    import flash.events.Event;
    import flash.display.Sprite;
    
    [SWF(backgroundColor="#000000",frameRate="40")]
    
    public class MathTest extends Sprite {
        private var circle:Sprite;
        public function MathTest() {
            createCircle();
            addEventListener(Event.ENTER_FRAME, loop, false,0,true);
        }
         
        private function loop(e:Event):void
        {
            var c:Number = Math.atan2(mouseY - (stage.stageHeight/2), mouseX - (stage.stageWidth/2));
            circle.x = (stage.stageWidth/2) + Math.cos(c) * 200;
            circle.y = (stage.stageHeight/2) + Math.sin(c) * 200;
            
            graphics.clear();
            graphics.lineStyle(1,0xFF0000);
            graphics.moveTo(mouseX,mouseY);
            graphics.lineTo(circle.x, circle.y);
            graphics.endFill();
        }

        private function createCircle():void
        {
            circle = new Sprite();
            circle.graphics.lineStyle(1,0xFF0000);
            circle.graphics.drawEllipse(-10,-10,20,20);            
            circle.graphics.endFill();
            addChild(circle);
        }

    }
}