package { import flash.display.BitmapData; import flash.system.LoaderContext; import flash.display.LoaderInfo; import flash.display.Loader; import flash.display.StageScaleMode; import flash.display.Sprite; import flash.display.BlendMode; import flash.display.Bitmap; import flash.net.URLRequest; import flash.geom.ColorTransform; import flash.events.Event; import flash.filters.BlurFilter; import com.bit101.components.ColorChooser; import com.bit101.components.RadioButton; import com.bit101.components.HUISlider; import com.bit101.components.CheckBox; import com.bit101.components.Panel; import org.libspark.thread.EnterFrameThreadExecutor; import org.libspark.thread.Thread; [SWF(backgroundColor="#000000", frameRate=60)] public class FireFlyEffect extends Sprite { private var sSpeed : HUISlider; private var sLife : HUISlider; private var canvas : AmplifierCanvas; private var sFrequency : HUISlider; private var sStrength : HUISlider; public function FireFlyEffect() { // take a capture after 10 sec Wonderfl.capture_delay( 10 ); stage.scaleMode = StageScaleMode.NO_SCALE; Thread.initialize(new EnterFrameThreadExecutor()); addChild(new Bitmap(new BitmapData(460, 460, false, 0))); var loader:Loader = addChild(new Loader()) as Loader; loader.contentLoaderInfo.addEventListener(Event.COMPLETE, start); loader.load(new URLRequest("http://www.imajuk.com/images/GillSans.png"), new LoaderContext(true)); } private function start(event : Event) : void { //================================= // the Bitmap as resource //================================= var sourceBMP : Bitmap = LoaderInfo(event.target).loader.content as Bitmap; sourceBMP.x = 80; sourceBMP.y = 50; sourceBMP.transform.colorTransform = new ColorTransform(1, 1, 1, 1, 0, 0, -20, 0); //================================= // UI //================================= var panel:Panel = new Panel(this, 50, 330); panel.setSize(200, 100); panel.color = 0; //================================= // slider for strength //================================= sStrength = new HUISlider(panel, 0, 0, "strength", updateParams); sStrength.setSliderParams(1, 10, 10); //================================= // slider for speed //================================= sSpeed = new HUISlider(panel, 0, 11, "speed", updateParams); sSpeed.setSliderParams(1, 50, 5); //================================= // slider for life time of effect //================================= sLife = new HUISlider(panel, 0, 22, "life", updateParams); sLife.setSliderParams(1, 200, 3); //================================= // slider for frequency of effect //================================= sFrequency = new HUISlider(panel, 0, 33, "frequency", updateParams); sFrequency.setSliderParams(0.01, 1, 1); //================================= // color chooser //================================= var colorChooser:ColorChooser = new ColorChooser(panel, 280, 5, 0x00FF00); //================================= // toggle text visible //================================= var checkBox:CheckBox = new CheckBox( panel, 280, 30, "hide text", function():void { sourceBMP.alpha = checkBox.selected ? 0 : 1; } ); //================================= // preset : TWINKLE //================================= new RadioButton( panel, 200, 5, "TWINKLE", true, function(event:Event):void { sStrength.value = 10; sSpeed.value = 5; sLife.value = 3; sFrequency.value = .7; updateParams(); canvas.filters = [new BlurFilter(2, 2, 4)]; } ); //================================= // preset : SOFT //================================= new RadioButton( panel, 200, 16, "SOFT", false, function(event:Event):void { sStrength.value = 5; sSpeed.value = 1; sLife.value = 160; sFrequency.value = .05; updateParams(); canvas.filters = [new BlurFilter(4, 4, 4)]; } ); //================================= // preset : HARD //================================= new RadioButton( panel, 200, 27, "HARD", false, function(event:Event):void { sStrength.value = 4; sSpeed.value = 30; sLife.value = 70; sFrequency.value = .4; updateParams(); canvas.filters = [new BlurFilter(2, 2, 4)]; } ); //================================= // effect //================================= var effectFactory:Function = function():Thread { return new FireFlyLightThread( sourceBMP.bitmapData, canvas.canvas, sStrength.value, sSpeed.value, colorChooser.value | 0xFF000000, sLife.value); }; //================================= // canvas //================================= canvas = addChild( new AmplifierCanvas( sourceBMP.width, sourceBMP.height, effectFactory, 0x000000, 0xFF, sFrequency.value, 4 ) ) as AmplifierCanvas; canvas.filters = [new BlurFilter(2, 2, 4)]; canvas.blendMode = BlendMode.ADD; canvas.x = sourceBMP.x; canvas.y = sourceBMP.y; updateParams(); } private function updateParams(...param) : void { canvas.refreshRate = Math.min(.3, sSpeed.value / 50); canvas.effectFrequency = sFrequency.value; } } } import flash.display.Sprite; import flash.display.BlendMode; import flash.display.Bitmap; import flash.display.BitmapData; import flash.geom.ColorTransform; import flash.geom.Rectangle; import flash.geom.Point; import org.libspark.thread.Thread; class RefreshCanvas extends Sprite { protected var _refresh : CanvasRefreshThread; public function get refreshRate() : Number { return _refresh.refreshRate; } public function set refreshRate(value : Number) : void { _refresh.refreshRate = value; } public function set effectFrequency(value : Number) : void { _refresh.frequency = value; } protected var _canvas : BitmapData; public function get canvas() : BitmapData { return _canvas; } public function RefreshCanvas( width : int, height : int, effectFactory:Function, canvasColor:uint = 0x000000, refreshRate:Number = .2, frequensy:Number = 1 ) { _canvas = new BitmapData(width, height, true, canvasColor); _refresh = new CanvasRefreshThread( _canvas, canvasColor, refreshRate, frequensy, effectFactory ); _refresh.start(); } } class AmplifierCanvas extends RefreshCanvas { public function AmplifierCanvas( width : int, height : int, effectFactory : Function, canvasColor:uint = 0x000000, refreshRate : Number = .2, frequensy : Number = 1, amplifier : int = 2 ) { super(width, height, effectFactory, canvasColor, refreshRate, frequensy); var bmp : Bitmap; while(amplifier-- > 0) { bmp = addChild(new Bitmap(_canvas)) as Bitmap; bmp.blendMode = BlendMode.ADD; } } } class CanvasRefreshThread extends Thread { private var canvas : BitmapData; private var getEffect : Function; private var rect : Rectangle; private var canvasColor : uint; private var refresh : ColorTransform; private var _refreshRate : Number; public function get refreshRate() : Number { return _refreshRate; } public function set refreshRate(value : Number) : void { _refreshRate = value; refresh = new ColorTransform(1, 1, 1, 1, 0, 0, 0, -value * 0xFF); } private var _frequency : Number; public function set frequency(frequency : Number) : void { _frequency = frequency; } public function CanvasRefreshThread( canvas:BitmapData, canvasColor:uint, refreshRate:Number, frequency:Number, getEffect:Function ) { super(); _frequency = frequency; this.canvas = canvas; this.getEffect = getEffect; this.rect = canvas.rect; this.canvasColor = canvasColor; this.refreshRate = refreshRate; } override protected function run() : void { canvas.lock(); canvas.colorTransform(rect, refresh); if (Math.random() <= _frequency) getEffect().start(); canvas.unlock(); next(run); } override protected function finalize() : void { } } class FireFlyLightThread extends Thread { private static var white : Array = []; private var source : BitmapData; private var canvas : BitmapData; private var pos : Point; private var vec : Number; private var life : int; private var speed : int; private var color : uint; private var cnt : int = 0; private var stength : int; public function FireFlyLightThread( source : BitmapData, canvas : BitmapData, strength : int = 2, speed : int = 1, color : uint = 0xFFFFFFFF, life:int = 100 ) { super(); this.canvas = canvas; this.source = source; this.vec = Math.PI; this.color = color; this.speed = speed; this.stength = strength; this.life = int(Math.random() * life); if (white.length == 0) prepare(); this.pos = white[Math.floor(Math.random() * white.length)]; } private function prepare() : void { var x:int = -1; var y:int = -1; while(++x <= source.width) { while(++y <= source.height) { if(source.getPixel32(x, y) > 0) white.push(new Point(x,y)); } y = 0; } } override protected function run() : void { if (life-- < 0) return; if (++cnt % 2 != 0) { next(run); return; } var sp : int = speed; while(sp-- > 0) { goAhead(); } } private function goAhead() : void { //ベクトル方向の座標増分 var ax : int = Math.round(Math.cos(vec)); var ay : int = Math.round(Math.sin(vec)); if (ax == 0 && ay == 0) return; //移動するつもりの座標 var dx:int = pos.x + ax; var dy:int = pos.y + ay; //ピクセルがあれば移動 if (source.getPixel32(dx, dy) > 0) { //現在位置を更新 pos.x = dx; pos.y = dy; var argb : uint = color; var a : uint = (argb >> 24) & 0xFF; var px:int; var py:int; var rad2:Number = vec += .2; var s:int = 0; while(++s <= stength && a > 0x01) { var c:int = 0; while(c++ < 4) { px = Math.cos(rad2) * s + pos.x; py = Math.sin(rad2) * s + pos.y; canvas.setPixel32(px, py, argb); rad2 += Math.PI * .5; } a = (argb >> 24) & 0xFF; a *= .8; argb = (a << 24) | (argb & 0x00FFFFFF); } next(run); } else { //ピクセルがなければ方向を変える vec += Math.PI * .25 * ((Math.random() > .5) ? 1 : -1); next(run); } } override protected function finalize() : void { } }