package ffffff.exp 
{
	import flash.filters.ColorMatrixFilter;	
	import flash.filters.DisplacementMapFilter;	
	import flash.display.Sprite;	
	import flash.display.BitmapDataChannel;	
	import flash.events.Event;	
	import flash.display.Bitmap;	
	import flash.display.BitmapData;	
	import flash.display.MovieClip;
	import flash.geom.Point;	

	/**
	 * @author white
	 */
	public class Sunset extends MovieClip {
		private const WIDTH:Number = 300;
		private const HEIGHT:Number = 300;
		
		private var redMap : BitmapData;
		private var blueMap : BitmapData;
		private var output : BitmapData;
		private var output1 : BitmapData;
		private var output2 : BitmapData;
		private var displaceMap : BitmapData;
		private var origin : Point = new Point(0,0);
		
		private var position1:Point = new Point(0, 0);
		private var position2:Point = new Point(0, 0);
		
		private var rect : Sprite;
		private var ct1 : ColorMatrixFilter;

		public function Sunset() {
			super();
			
			redMap = new BitmapData(WIDTH, HEIGHT);
			blueMap = new BitmapData(WIDTH, HEIGHT);
			displaceMap = new BitmapData(WIDTH, HEIGHT);
			
			output = new BitmapData(WIDTH, HEIGHT);
			output1 = new BitmapData(WIDTH, HEIGHT,false,0);
			output2 = new BitmapData(WIDTH, HEIGHT,false,0);
			
			addChild(new Bitmap(output));
			
			addEventListener(Event.ENTER_FRAME, loop);
			
			addChild(new Bitmap(output));
			
			rect = new Sprite();
			rect.graphics.lineStyle(3,0xFFaaaa);
			rect.graphics.moveTo(0,300);
			rect.graphics.lineTo(300,300);
								
			ct1 =  new ColorMatrixFilter([
									1,		0,		0,		0,		0,
									0,		1,		0,		0,		0,
									.01,		0.01,		1,		0,		0,
									0,		0,		0,		1,		0]);
								
		}

		private function loop(event : Event) : void {
			
			redMap.perlinNoise(1000, 1000, 5, 3, true, true, BitmapDataChannel.RED , false, [position1,position2,position1,position2]);
			
			position1.offset(1, 1);
			position2.offset(-1, .5);
			
			displaceMap.copyChannel(redMap, redMap.rect, origin, BitmapDataChannel.RED, BitmapDataChannel.RED);
			
			output1.draw(rect);
			output1.applyFilter(output1, output1.rect, origin, ct1);
			
			var displace : DisplacementMapFilter = new DisplacementMapFilter(displaceMap,origin,BitmapDataChannel.RED, BitmapDataChannel.BLUE,5,2);
			output1.applyFilter(output1, output1.rect, origin, displace);
			
			output.copyPixels(output1, output1.rect, origin);
		}
	}
}