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Dead Code Preservation :: Archived AS3 works from wonderfl.net

forked from: flash on 2010-2-20

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by chebit 20 Feb 2010
/**
 * Copyright chebit ( http://wonderfl.net/user/chebit )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/gozn
 */

// forked from Mark's flash on 2010-2-20
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 = 6;
		private const _maxSpeed:Number = 6;		
		private const _minSpeed:Number = 3;
		private const _radiusMin:Number = 20;
		private const _radiusMax:Number = 60;
		private const _glow:GlowFilter = new GlowFilter(0x000000, 0.7, 5, 5, 5, 1000);
		
		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 = 0x33FFFF;
				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(3, 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);
		}
	}
}