forked from: Simple Steam

/**
 * Copyright bradsedito ( http://wonderfl.net/user/bradsedito )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/dCb5
 */

// forked from a24's Simple Steam 
package
{
    import flash.display.*;
    import flash.geom.Point;
    
    [SWF(backgroundColor = "#777777", frameRate = 60)]
    
    public class SimpleSteam extends MovieClip 
    {
        private var _bmd:BitmapData = new BitmapData(465 / 2, 465 / 2, false, 0);
        private var _bmp:Bitmap     = new Bitmap(_bmd);
        private var _lay:Array      = [new Point(), new Point(), new Point(), new Point()];
        
        public function SimpleSteam() {
            _bmp.scaleX = _bmp.scaleY = 2;
            addChild(_bmp).blendMode = "screen";
            
            addEventListener("enterFrame", function():void {
                for (var i:int; i < _lay.length; i++) _lay[i].offset((mouseX - 232) / 700 * (2 - i) , mouseY / 800 * (4 - i));
                _bmd.perlinNoise(60, 60, 4, 0, true, true, 4, true, _lay);
            });
        }
    }
}