BitmapDataTest

by com4ek 02 Jul 2009

Tags

Bitmap BitmapData Matrix fun 画像変形
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/**
 * Copyright com4ek ( http://wonderfl.net/user/com4ek )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/zXpY
 */

package {
    import flash.display.Sprite;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.BitmapDataChannel;
    import flash.events.Event;
    
    public class FlashTest extends Sprite {
        public function FlashTest() {
            // write as3 code here..
            init();
            
            this.addEventListener(Event.ENTER_FRAME, enterFrameHandler);
        }
        
        private var _bmpd:BitmapData;
        private var _seed:Number;
        private var _channels:uint;
        
        private function init():void{
            _bmpd = new BitmapData(stage.stageWidth, 200, false, 0x00CCCCCC);
            _seed = Math.floor(Math.random() * 10 );
            _channels = BitmapDataChannel.RED | BitmapDataChannel.BLUE | BitmapDataChannel.GREEN;
            _bmpd.perlinNoise(100, 80, 6, _seed, false, true, _channels, false, null);
            
            var bmp:Bitmap = new Bitmap(_bmpd);
            
            addChild(bmp);
        }
        
        private function enterFrameHandler(event:Event):void {
            var bmpd2:BitmapData = _bmpd.clone();
            var _color:Number = Math.floor(Math.random() * 256);
            
            for ( var i:int = 0; i < _bmpd.width; i++ ) {
                for( var j:int = 0; j < _bmpd.height; j++ ) {
                    _bmpd.setPixel(i, j, (Math.abs(bmpd2.getPixel(i, j) + _color)) );
                }
            }
        }
    }
}