Forked from:: k__'s muddy water

forked from: muddy water

forked:0
favorite:1
lines:49
license : MIT License
modified : 2012-05-10 19:43:50

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// forked from k__'s muddy water
package {
    import flash.display.*;
    import flash.filters.*;
    import flash.geom.*;
    import flash.events.Event;
    public class Main extends Sprite{
        private var canvas:Bitmap;
        private var disp:BitmapData, map:BitmapData, noise:BitmapData,neut:BitmapData;
        private var blur:BlurFilter, dmf:DisplacementMapFilter;
        private var lx:int = 0,ly:int = 0;
        private var brush:Sprite, g:Graphics;
        private var cnt:uint = 0;
        public function Main() {
            disp = new BitmapData(stage.stageWidth , stage.stageHeight);
            disp.noise(0,0,255,4);
            
            map = new BitmapData(stage.stageWidth , stage.stageHeight, false,0x800080);
            noise = new BitmapData(stage.stageWidth , stage.stageHeight);
            neut = new BitmapData(stage.stageWidth, stage.stageHeight,false, 0x880088);
            brush = new Sprite();
            g = brush.graphics;
            
            blur = new BlurFilter(16,16);
            
            lx = mouseX;
            ly = mouseY;
            addChild(new Bitmap(disp));
            addEventListener(Event.ENTER_FRAME, h_enterFrame);
        }
        
        private function h_enterFrame(evt:Event):void {
            dmf = new DisplacementMapFilter(
                map, new Point(0,0),BitmapDataChannel.RED, BitmapDataChannel.BLUE, 16,16);
            disp.applyFilter(disp,new Rectangle(0,0,disp.width, disp.height),new Point(0,0),dmf);
            
            var r:uint = Math.min(Math.max(lx -mouseX + 128, 0) , 255);
            var b:uint = Math.min(Math.max(ly - mouseY + 128, 0) , 255);
            var col:uint = (r <<16 | b);
            g.clear();
            g.lineStyle(80,col, 0.5);
            g.moveTo(lx,ly);
            g.lineTo(mouseX,mouseY);
            map.draw(brush);
            lx = mouseX;
            ly = mouseY;
            noise.noise(0,0,255,4);
            disp.draw(noise,new Matrix(),new ColorTransform(1,1,1,0.05,0,0,0,0));
            if (cnt ++ % 10 == 0) {
                map.applyFilter(map,new Rectangle(0,0,disp.width, disp.height),new Point(0,0),blur);
                map.draw(neut,new Matrix(),new ColorTransform(1,1,1,0.1,0,0,0,0));
            }
        }
    }
}

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