forked from: flash on 2010-5-13
/**
* Copyright gblue07 ( http://wonderfl.net/user/gblue07 )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/pFZ5
*/
// forked from gblue07's flash on 2010-5-13
package
{
import flash.display.MovieClip
import flash.events.Event;
import flash.filters.GlowFilter;
import flash.geom.Point;
public class Main extends MovieClip
{
private const _startPt:Point = new Point( -100, stage.stageHeight / 2);
private const _endPt:Point = new Point(stage.stageWidth + 100, stage.stageHeight / 2);
private const _halfPt:Point = new Point(Math.abs(_startPt.x - _endPt.x) / 2, Math.abs(_startPt.y - _endPt.y) / 2);
private const _numLines:uint = 10;
private const _maxSpeed:Number = 12;
private const _minSpeed:Number = 6;
private const _radiusMin:Number = 30;
private const _radiusMax:Number = 120;
private const _glow:GlowFilter = new GlowFilter(0x000000, 1.0, 2, 2, 10, 2);
private var _angleLeft:Array = new Array();
private var _angleRight:Array = new Array();
private var _radiLeft:Array = new Array();
private var _radiRight:Array = new Array();
public function Main ():void
{
for (var i:int = 0; i < _numLines; i++)
{
_radiLeft.push(_radiusMin + ((_radiusMax - _radiusMin) / (_numLines -1) ) * i);
_radiRight.push(_radiusMax - ((_radiusMax - _radiusMin) / (_numLines -1) ) * i);
_angleLeft.push((360 / _numLines) * i);
_angleRight.push(360 - (360 / _numLines) * i);
}
for (var j:int = 0; j < _numLines; j++)
{
var line:MovieClip = new MovieClip();
line.angle1 = _angleLeft[j];
line.radius1 = _radiLeft[j];
line.speed1 = Math.random() * (_maxSpeed - _minSpeed) + _minSpeed;
line.angle2 = _angleRight[j];
line.radius2 = _radiRight[j];
line.speed2 = Math.random() * (_maxSpeed - _minSpeed) + _minSpeed;
line.colour = 0xFFCC33;
line.addEventListener(Event.ENTER_FRAME, onLoop);
line.filters = [_glow]
stage.addChild(line);
}
}
private function onLoop (evt:Event):void
{
var line:MovieClip = MovieClip(evt.target);
line.tx1 = _startPt.x + _halfPt.x / 2 + Math.cos(line.angle1 * (Math.PI / 180)) * line.radius1;
line.ty1 = _startPt.y + Math.sin(line.angle1 * (Math.PI / 180)) * line.radius1;
line.tx2 = _endPt.x - _halfPt.x / 2 + Math.cos(line.angle2 * (Math.PI / 180)) * line.radius2;
line.ty2 = _endPt.y + Math.sin(line.angle2 * (Math.PI / 180)) * line.radius2;
line.midx = (line.tx2 + line.tx1) / 2;
line.midy = (line.ty2 + line.ty1) / 2;
line.angle1 += line.speed1;
line.angle2 += line.speed2;
line.graphics.clear();
line.graphics.lineStyle(12, line.colour);
line.graphics.moveTo(_startPt.x, _startPt.y);
line.graphics.curveTo(line.tx1, line.ty1, line.midx, line.midy);
line.graphics.curveTo(line.tx2, line.ty2, _endPt.x, _endPt.y);
}
}
}