package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.BitmapDataChannel; import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; import flash.filters.BlurFilter; import flash.filters.DisplacementMapFilter; import flash.filters.GlowFilter; import flash.geom.ColorTransform; import idv.cjcat.stardust.common.clocks.SteadyClock; import idv.cjcat.stardust.twoD.renderers.DisplayObjectRenderer; /* * 題名的にやるしかない！と思ったのでfork */ [SWF(backgroundColor="0x000000", width=465, height=465, frameRate=60)] public class StarDust extends Sprite { //色を変化させるためのもの private var colorTrans:ColorTransform; //大量のボールを描画するSprite private var canvas:Sprite; //表示用Bitmap private var bmp:Bitmap; //canvasの内容を記録するためのBitmapData private var bmpData:BitmapData; // エミッター private var emitter:StarDustEmitter; public function StarDust() { colorTrans=new ColorTransform(0.8, 0.95, 0.99, 0.9); canvas = new Sprite(); bmpData=new BitmapData(512, 512, true, 0xFF00000); bmp=new Bitmap(bmpData); addChild(bmp); // エミッターとレンダラーを作成 emitter = new StarDustEmitter(new SteadyClock(1), new GlowFilter(0, 1, 16, 16, 2)); var renderer:DisplayObjectRenderer = new DisplayObjectRenderer(canvas); renderer.addEmitter(emitter); addEventListener(Event.ENTER_FRAME, onEnterFrame); } private function onEnterFrame(event:Event):void { // エミッターを更新 emitter.point.x = mouseX; emitter.point.y = mouseY; emitter.step(); //canvas上に描かれている内容をbmpDataに格納 bmpData.draw(canvas); //色変化エフェクトを適用 bmpData.colorTransform(bmpData.rect, colorTrans); } } } import flash.display.Sprite; import flash.filters.GlowFilter; import idv.cjcat.stardust.common.actions.Action; import idv.cjcat.stardust.common.clocks.Clock; import idv.cjcat.stardust.common.emitters.Emitter; import idv.cjcat.stardust.common.math.UniformRandom; import idv.cjcat.stardust.common.particles.Particle; import idv.cjcat.stardust.twoD.actions.Action2D; import idv.cjcat.stardust.twoD.actions.DeathZone; import idv.cjcat.stardust.twoD.actions.Gravity; import idv.cjcat.stardust.twoD.actions.Move; import idv.cjcat.stardust.twoD.actions.Spin; import idv.cjcat.stardust.twoD.emitters.Emitter2D; import idv.cjcat.stardust.twoD.fields.UniformField; import idv.cjcat.stardust.twoD.initializers.DisplayObjectClass; import idv.cjcat.stardust.twoD.initializers.Omega; import idv.cjcat.stardust.twoD.initializers.Position; import idv.cjcat.stardust.twoD.initializers.Velocity; import idv.cjcat.stardust.twoD.particles.Particle2D; import idv.cjcat.stardust.twoD.zones.CircleZone; import idv.cjcat.stardust.twoD.zones.LazySectorZone; import idv.cjcat.stardust.twoD.zones.RectZone; import idv.cjcat.stardust.twoD.zones.SinglePoint; class StarDustEmitter extends Emitter2D { public var point:SinglePoint; public function StarDustEmitter(clock:Clock, grow:GlowFilter) { super(clock); // イニシャライザーを登録 point = new SinglePoint(); var position:Position = new Position(point); addInitializer(position); addInitializer(new DisplayObjectClass(Star, [grow])); addInitializer(new Velocity(new CircleZone(0, 0, 5))); addInitializer(new Omega(new UniformRandom(5, 5))); // アクションを登録 var gravity:Gravity = new Gravity(); gravity.addField(new UniformField(0.15, 0.2)); addAction(gravity); addAction(new Move()); addAction(new DeathZone(new RectZone(0, 0, 465, 465), true)); addAction(new Spin()); addAction(new StarAction()); } } class StarAction extends Action { public function StarAction(){} override public function update(emitter:Emitter, particle:Particle, time:Number):void { particle.target.z += particle.target.vz; } } class Star extends Sprite { public var vz:Number; public function Star(glow:GlowFilter) { vz = -Math.random() * 10; //Glowの色の設定 glow.color = Math.random() * 0xffffff; //フィルターの適用 filters = [glow]; var r:Number = Math.random() * 8 + 5; var p:int = 5; var r2:Number=r / 2; var angle:Number=-90; var addtion:Number=360 / (p * 2); graphics.beginFill(0xffffff); graphics.moveTo(0, -r); for (var i:int=0; i < p * 2; i++) { angle+=addtion; var to_x:Number; var to_y:Number; var radian:Number=angle * Math.PI / 180; if (i % 2) { to_x=r * Math.cos(radian); to_y=r * Math.sin(radian); } else { to_x=r2 * Math.cos(radian); to_y=r2 * Math.sin(radian); } graphics.lineTo(to_x, to_y); } graphics.endFill(); } }