HighSpeed Dog RGB Separator

結構前に投稿されたのをほじくり返して勉強用に作成。
↓参考にさせていただきました。
http://wonderfl.net/code/381f195b4aad8c2a14fc00ad03f638df25568a5d

@author esukei
回転速度を上げてみた。
カーソルを中央付近に持ってくると陽炎っぽい。

by esukei 10 Jul 2009

• Forked from yanbaka's Dog RGB Separator
• Diff: 14
• Related works: 16
Embed

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

// forked from yanbaka's Dog RGB Separator
// forked from clockmaker's RGB Separater
package
{
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.display.BitmapDataChannel;
	import flash.display.BlendMode;
	import flash.display.Loader;
        import flash.system.LoaderContext;
	import flash.display.Shape;
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.geom.Point;
	import flash.net.URLRequest;
	import flash.system.Security;
	
	
    [SWF(width = "465", height = "465", backgroundColor = "0x000000", frameRate = "60")]
	/**
	 * 結構前に投稿されたのをほじくり返して勉強用に作成。
	 * ↓参考にさせていただきました。
	 * http://wonderfl.net/code/381f195b4aad8c2a14fc00ad03f638df25568a5d
	 * 
         * @author esukei
         * 回転速度を上げてみた。
         * カーソルを中央付近に持ってくると陽炎っぽい。
         */
	public class DogRGBSeparator extends Sprite
	{
		private const WIDTH:Number = stage.stageWidth;
		private const HEIGHT:Number = stage.stageHeight;
		private const IMG_PATH:String = "http://yanbaka.main.jp/blog/flash/swf/images/465_465.jpg";
		
		private var max:Number;
		private var bmps:Array = [];
		private var speeds:Array = [];
		private var flg:Boolean = false;
		
		public function DogRGBSeparator()
		{
   
                        Security.loadPolicyFile("http://5ivestar.org/proxy/crossdomain.xml");
			var dx:Number = WIDTH - WIDTH/2;
			var dy:Number = HEIGHT - HEIGHT/2;
			max = Math.sqrt(dy*dy+dx*dx);			
			 
			loadImage();
		}
		
		private function loadImage():void
		{
			graphics.beginFill(0x000000);
			graphics.drawRect(0, 0, WIDTH, HEIGHT);
                        var context:LoaderContext = new LoaderContext(true);
			var loader:Loader = new Loader();
			loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
			loader.load(new URLRequest("http://5ivestar.org/proxy/"+IMG_PATH),context);
		}
		
		private function onComplete(e:Event):void
		{
			var loader:Loader = Loader(e.target.loader);
			var rgb:Array = createRGB(Bitmap(loader.content));
			
			var l:int = rgb.length;
			for (var i:int=0; i<l; i++)
			{
				var radius:Number = i/l*Math.PI*2;
				speeds.push(radius);
				
				var bmp:Bitmap = new Bitmap(rgb[i]);
				bmp.blendMode = BlendMode.SCREEN;
				bmp.scaleX = bmp.scaleY = 0.5;
				addChild(bmp);
				bmps.push(bmp);
			}
			
			var center:Shape = new Shape();
			center.graphics.lineStyle(1, 0xFF0000);
			center.graphics.moveTo(-5, -5);
			center.graphics.lineTo(5, 5);
			center.graphics.moveTo(5, -5);
			center.graphics.lineTo(-5, 5);
			center.graphics.endFill();
			center.x = WIDTH/2;
			center.y = HEIGHT/2;
			addChild(center);
			
			addEventListener(Event.ENTER_FRAME, loop);
		}
		
		private function loop(e:Event):void
		{
			var dx:Number = mouseX - WIDTH/2;
			var dy:Number = mouseY - HEIGHT/2;
			var dist:Number = Math.sqrt(dy*dy+dx*dx);
			var spd:Number = WIDTH/2 - dist;
			var radius:Number = dist;
			var sc:Number = 1-dist/max;
			
			var l:int = bmps.length;
			for(var i:int=0; i<l; i++)
			{
				var bmp:Bitmap = bmps[i];
				bmp.scaleX = bmp.scaleY = sc;
				speeds[i] += spd;
				var xx:Number = (WIDTH-bmp.width)/2;
				var yy:Number = (HEIGHT-bmp.height)/2;
				bmp.x = Math.cos(speeds[i])*radius+xx;
				bmp.y = Math.sin(speeds[i])*radius+yy;
			}
		}
		
		private function createRGB(bmp:Bitmap):Array
		{
			var r:BitmapData = new BitmapData(bmp.width, bmp.height, true, 0xFF000000);
			var g:BitmapData = new BitmapData(bmp.width, bmp.height, true, 0xFF000000);
			var b:BitmapData = new BitmapData(bmp.width, bmp.height, true, 0xFF000000);
			r.copyChannel(bmp.bitmapData, bmp.bitmapData.rect, new Point(), BitmapDataChannel.RED, BitmapDataChannel.RED);
			g.copyChannel(bmp.bitmapData, bmp.bitmapData.rect, new Point(), BitmapDataChannel.GREEN, BitmapDataChannel.GREEN);
			b.copyChannel(bmp.bitmapData, bmp.bitmapData.rect, new Point(), BitmapDataChannel.BLUE, BitmapDataChannel.BLUE);
			
			return [r, g, b];
		}
	}
}