/** * webカメラからの映像を古っぽくする */ package { import flash.display.Sprite; import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.DisplayObjectContainer; import flash.events.Event; import flash.filters.BlurFilter; import flash.filters.ColorMatrixFilter; import flash.geom.Point; import flash.media.Camera; import flash.media.Video; public class Main extends Sprite { private var _w:Number; private var _h:Number; private var _camera:Camera; private var _video:Video; private var _bmd:BitmapData; /** * effects */ private var _color_matrix_filter:ColorMatrixFilter; private var _blur_filter:BlurFilter; private var _white_noise:BitmapData; private var _mimizu:Mimizu; private var _lines:Lines; private var _pt:Point; /** * constructor */ public function Main():void { _w = stage.stageWidth; _h = stage.stageHeight; //カメラソースを取得 _camera = Camera.getCamera(); if (_camera == null) return; _camera.setMode(_w, _h, 24); _video = new Video(_w, _h); _video.attachCamera(_camera); _bmd = new BitmapData(_video.width, _video.height, true, 0xffffffff); var bmp:Bitmap = new Bitmap(_bmd); bmp.scaleX = -1; bmp.x = _w; addChild(bmp); //applyFilter用 _pt = new Point(); //ブラーフィルター _blur_filter = _getBlurFilter(); //白色雑音 _white_noise = new BitmapData(_bmd.width, _bmd.height, true, 0xffffffff); //みみず _mimizu = new Mimizu(_bmd.width, _bmd.height); addChild(_mimizu); //縦線 _lines = new Lines(_bmd.width, _bmd.height); addChild(_lines); addEventListener(Event.ENTER_FRAME, _enterFrameHandler); } /** * enterFrameHandler */ private function _enterFrameHandler(e:Event):void { _bmd.draw(_video); //モノクロにして、毎フレームちらつかせておく _color_matrix_filter = _getColorMatrixFilter(Math.random() * 10 - 50); _bmd.applyFilter(_bmd, _bmd.rect, _pt, _color_matrix_filter); //ブラーフィルター _bmd.applyFilter(_bmd, _bmd.rect, _pt, _blur_filter); //白色雑音 _applyWhiteNoise(_bmd); //みみず _mimizu.update(); //縦線 _lines.update(); } /** * getColorMatrixFilter */ private function _getColorMatrixFilter(offset:Number=-50):ColorMatrixFilter { var a:Number = 2/5; var b:Number = 2/5; var c:Number = offset; var color_matrix_filter:ColorMatrixFilter = new ColorMatrixFilter( [a, b, b, 0, c, b, a, b, 0, c, b, b, a, 0, c, 0, 0, 0, 1, 0] ); return color_matrix_filter; } /** * getBlurFilter */ private function _getBlurFilter():BlurFilter { var strength:Number = 4; var quality:Number = 1; var blur_filter:BlurFilter = new BlurFilter( strength, strength, quality); return blur_filter; } /** * addFilter */ private function _addFilter(filter:*, target:DisplayObjectContainer):void { var list:Array = target.filters; list.push(filter); target.filters = list; } /** * applyWhiteNoise */ private function _applyWhiteNoise(target:BitmapData):void { _white_noise.noise(Math.random() * 10000, 0, 48, 15, true); target.draw(_white_noise); } } } /** * みみず */ import flash.display.Graphics; import flash.display.Sprite; class Mimizu extends Sprite { private var _g:Graphics; private var _w:Number; private var _h:Number; private var _count:uint; /** * constructor */ public function Mimizu(w:Number, h:Number):void { _g = graphics; _w = w; _h = h; _count = 0; } /** * update */ public function update():void { //数フレーム置いて消去 if (_count == 0) _g.clear(); //数フレームに一度しか描かない if (++_count != 4) return; _count = 0; var n:uint = 5; for(var i:uint = 0; i < n; ++i) { _createMimizu(_g, Math.random() * _w, Math.random() * _h); } } private function _createMimizu(g:Graphics, ox:Number, oy:Number):void { g.lineStyle(1, 0x00000000, 0.5); g.moveTo(ox, oy); var n:uint = Math.random() * 9 + 1; var ix:Number = ox; var iy:Number = oy; for(var i:uint = 0; i < n; ++i) { ix += (Math.random() - 0.5) * 15; iy += (Math.random() - 0.5) * 15; g.lineTo(ix, iy); } } } /** * 縦線 */ class Lines extends Sprite { private var _list:Vector.<Line>; private var _n:int; private var _w:Number; private var _h:Number; public function Lines(w:Number, h:Number):void { _w = w; _h = h; _n = 3; _list = new Vector.<Line>(); for(var i:int = 0; i < _n; ++i) { _createLine(); } } public function update():void { for(var i:int = 0; i < _n; ++i) { _list[i].update(); } } private function _createLine():void { var l:Line = new Line(_w, _h); _list.push(l); addChild(l); } } class Line extends Sprite { private var _w:Number; private var _h:Number; private var _vx:Number; private var _timer:int; public function Line(w:Number, h:Number):void { _w = w; _h = h; var g:Graphics = graphics; g.lineStyle(1, 0x00000000, 1); g.moveTo(0, 0); g.lineTo(0, _h); x = Math.random() * _w; _reset(); } public function update():void { if(_timer > 0) { x += _vx; alpha = (x < 0 || x > _w) ? 0 : 0.1 + Math.random() * 0.1; --_timer; } else { _reset(); } } private function _reset():void { _vx = (Math.random() - 0.5) * 10; if (x < 0 || x > _w) { x = (_vx > 0) ? 0 : _w; } _timer = 30 + Math.random() * 70; } }