// forked from Kay's 春の麗らの package { import flash.display.*; import flash.filters.*; import flash.geom.*; import flash.events.*; [SWF(width=320,height=320,backgroundColor=0x669999,frameRate=24)] public class Take04 extends Sprite { private const SW:Number = stage.stageWidth; private const SH:Number = stage.stageHeight; private var petalStage:Sprite; private var fDisplace:DisplacementMapFilter; private var petalBmd:BitmapData; private var streamBmd:BitmapData; private var streamBmdBase:BitmapData; private var fStream:DisplacementMapFilter; private var mapPointX:int = 0; public function Take04():void { // 川面の流れMapを作る streamBmdBase = new BitmapData(SW*2,SH); streamBmdBase.perlinNoise(20,10,1,1,true,true,1,false,[]); var revSprite:Shape = new Shape(); revSprite.graphics.beginBitmapFill(streamBmdBase); revSprite.graphics.drawRect(0,0,SW*2,SH); revSprite.graphics.endFill(); revSprite.scaleX = -1; var revStream:BitmapData = new BitmapData(SW*2,SH); revStream.draw(revSprite); streamBmdBase.copyChannel(revStream,revStream.rect,new Point(0,0),0xff0000,0xff0000); streamBmd = new BitmapData(SW*2,SH); streamBmd.copyPixels(streamBmdBase, new Rectangle(SW,0,SW*2,SH), new Point(0,0)); // うねりを描画 fStream = new DisplacementMapFilter(); fStream.mapBitmap = streamBmd; fStream.componentX = BitmapDataChannel.RED; fStream.componentY = BitmapDataChannel.RED; fStream.scaleX = 8; fStream.scaleY = 8; fStream.mapPoint = new Point(40,40); fStream.mode = DisplacementMapFilterMode.IGNORE; // 描画ステージを作る var mainStage:Sprite = new Sprite(); mainStage.graphics.drawRect(-40,-40,SW+80,SH+80); addChild(mainStage); // 背景用のBitmapDataを作る var bg:Background = new Background(SW+80,SH+80); var bgBmd:BitmapData = new BitmapData(SW+80,SH+80,true,0x000000); bgBmd.draw(bg); // 背景を描画 var bgShape:Shape = new Shape(); bgShape.graphics.beginBitmapFill(bgBmd); bgShape.graphics.drawRect(0, 0, SW+80, SH+80); bgShape.graphics.endFill(); bgShape.x = -40; bgShape.y = -40; mainStage.addChild(bgShape); mainStage.filters = [fStream]; mainStage.addEventListener(Event.ENTER_FRAME, streamMove); // 川のうねりを表現するぼかしMAPを作る var redBmd:BitmapData = bgBmd.clone(); var ctf:ColorTransform = new ColorTransform(); ctf.redOffset = 255; ctf.greenOffset = 255; ctf.blueOffset = 255; redBmd.colorTransform(redBmd.rect,ctf); var fBlur:BlurFilter = new BlurFilter(); fBlur.blurX = 32; fBlur.blurY = 32; //fBlur.quality = BitmapFilterQuality.HIGH; redBmd.applyFilter(redBmd, redBmd.rect, new Point(0,0), fBlur); petalBmd = new BitmapData(SW+80,SH+80,false,0x000000); petalBmd.copyPixels(redBmd,redBmd.rect,new Point(0,0)); // うねりを描画 fDisplace = new DisplacementMapFilter(); fDisplace.mapBitmap = petalBmd; //fDisplace.componentX = BitmapDataChannel.RED; fDisplace.componentY = BitmapDataChannel.RED; //fDisplace.scaleX = -4; fDisplace.scaleY = -4; // 水面の光をBevelFilterで表現 var fBevel:BevelFilter = new BevelFilter(); fBevel.knockout = true; fBevel.blurX = 2; fBevel.blurY = 2; fBevel.angle = 80; fBevel.shadowColor = 0x0066ff; fBevel.distance = 32; fBevel.type = BitmapFilterType.FULL; var faceShape:Shape = new Shape(); faceShape.graphics.beginBitmapFill(redBmd); faceShape.graphics.drawRect(0, 0, SW+80, SH+80); faceShape.graphics.endFill(); faceShape.filters = [fBevel]; faceShape.x = -32; faceShape.y = -32; mainStage.addChild(faceShape); // 花びらを描く var petalsSprite:Sprite = new Sprite(); for (var i:uint = 0; i < 24; i++) { var petal:Petal = new Petal(); petal.x = Math.random()*(SW+40)-20; petal.y = Math.random()*SH+40; petal.rotation = Math.random()*360; petalsSprite.addChild(petal); } var fDropShadow:DropShadowFilter = new DropShadowFilter(); fDropShadow.distance = 30; fDropShadow.alpha = 0.1; fDropShadow.angle = 80; fDropShadow.color = 0x003366; petalsSprite.filters = [fDisplace,fDropShadow]; addChild(petalsSprite); petalsSprite.addEventListener(Event.ENTER_FRAME, petalStream); } private function petalStream(e:Event):void { for (var i:uint=0; i < 24; i++) { var petal:Object = e.target.getChildAt(i); if (petal.y < -50) { petal.y += SH+100; } else if (petal.y > SW+50) { petal.y -= SH+100; } if (petal.x > 0) { var xOffset:Number = petalBmd.getPixel(petal.x,petal.y)-0x7f7f7f; var yOffset:Number = petalBmd.getPixel(petal.x,petal.y)-0xbbbbbb; xOffset = xOffset/0x7f7f7f; yOffset = yOffset/0x7f7f7f; petal.x -= 1.5+2*xOffset; petal.y += 1.5*yOffset; petal.rotation -= yOffset*5; } else if (petal.x < -30) { petal.x += SW+60+Math.random()*10-5; petal.y = Math.random()*(SH+80)-40; } else { petal.x -=4; } } } private function streamMove(e:Event):void { if (mapPointX >= SW) { mapPointX = 0; } mapPointX += 4; streamBmd.copyPixels(streamBmdBase, new Rectangle(mapPointX,0,SW,SH), new Point(0,0)); e.target.filters = [fStream]; } } } import flash.display.*; import flash.filters.*; class Petal extends Shape { public function Petal():void { graphics.lineStyle(0,0xeeaadd); graphics.beginFill(0xffbbee); graphics.moveTo(8,-20); graphics.curveTo(22,0,0,20); graphics.curveTo(-22,0,-8,-20); graphics.lineTo(0,-12); graphics.endFill(); } } class Background extends Sprite { public function Background(w:Number, h:Number):void { var fDropShadow:DropShadowFilter = new DropShadowFilter(); fDropShadow.alpha = 0.25; fDropShadow.distance = 8; var fBevel:BevelFilter = new BevelFilter(); fBevel.shadowAlpha = 0.25; fBevel.highlightAlpha = 0.25; fBevel.blurX = 16; fBevel.blurY = 16; var vC:uint = 0; for (var nY:uint=0; nY <= h; nY+=40) { var xOffset:int = vC%2==0 ? -10 : 10; for (var nX:uint=0; nX < h; nX+=40) { var sR:Number = Math.random()*5+20; var stone:Shape = new Shape(); stone.graphics.beginFill(getColor()); stone.graphics.drawCircle(0,0,sR); stone.graphics.endFill(); stone.x = nX + Math.random()*20-10+xOffset; stone.y = nY + Math.random()*30-15; stone.filters = [fBevel,fDropShadow]; addChild(stone); } vC++; } } private function getColor():uint { var cR:uint = Math.floor(Math.random()*20)+117; var cG:uint = Math.floor(Math.random()*20)+168; var cB:uint = Math.floor(Math.random()*20)+168; var color:uint = cR << 16 | cG << 8 | cB; return color; } }