package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.Sprite; import flash.events.Event; import flash.filters.BlurFilter; import flash.geom.ColorTransform; import flash.geom.Matrix; import flash.geom.Point; import net.hires.debug.Stats; /** * 久々の朝ワン(∪＾ω＾)ワン * 荒波日本海！ * 岩壁にぶつかって荒々しく唸る日本海的なイメージ。 * @author jc at bk-zen.com */ [SWF (backgroundColor = "0x0", frameRate = "30", width = "465", height = "465")] public class Asawon7 extends Sprite { private var bmd: BitmapData; private var forceMap: BitmapData; private const PARTICLE_NUM: int = 50000; private const WIDTH: int = 465; private const HEIGHT: int = 465; private var COLOR: uint = 0xFFFFFF; private var particle: Particle; private var seed: int; private var mw: int; private var mh: int; private var arr: Array; private var point: Point; private var point2: Point; private var basePoint: Point = new Point(); private var colorTf: ColorTransform; private var blur: BlurFilter; private var baseMatrix: Matrix; public function Asawon7() { if (stage) init(); else addEventListener(Event.ADDED_TO_STAGE, init); } private function init(e: Event = null): void { removeEventListener(Event.ADDED_TO_STAGE, init); // addChild(new Bitmap(bmd = new BitmapData(WIDTH, HEIGHT, false, 0x0))); var p: Particle, prev: Particle = particle = new Particle(); forceMap = new BitmapData(WIDTH / 2, HEIGHT / 2); forceMap.perlinNoise(mw = forceMap.width >> 2, mh = forceMap.height >> 2, 4, seed = Math.random() * 0xFFFF, false, true, 3); arr = [point = new Point(), point2 = new Point()]; for (var i:int = 0; i < PARTICLE_NUM; i++) { p = new Particle(); p.x = WIDTH * Math.random(); p.y = HEIGHT * Math.random(); prev = prev.next = p; } colorTf = new ColorTransform(1, 1, 1, 1, -8, -2, -1); blur = new BlurFilter(2, 2); addEventListener(Event.ENTER_FRAME, loop); addChild(new Stats()); mouseChildren = mouseEnabled = false; baseMatrix = new Matrix(0.75, 0.31, -0.72, 0.67, 227.05, 10); } private function loop(e: Event): void { var p: Particle = particle, col: uint, h: Number; point.x ++; point2.y ++; forceMap.perlinNoise(mw, mh, 4, seed, false, true, 3, false, arr); bmd.lock(); while ((p = p.next) != null) { col = forceMap.getPixel(p.x >> 1, p.y >> 1); p.x += (p.vx = p.vx * 0.98 + (( col >> 16 & 0xff) - 128) * 0.004); p.y += (p.vy = p.vy * 0.98 + (( col >> 8 & 0xff) - 128) * 0.004); if (p.x < 0) p.x += WIDTH; else if (p.x >= WIDTH) p.x -= WIDTH; if (p.y < 0) p.y += HEIGHT; else if (p.y >= HEIGHT) p.y -= HEIGHT; h = p.vx * p.vy * 3; h = h < 0 ? h : - h; bmd.setPixel(p.x * baseMatrix.a + p.y * baseMatrix.c + baseMatrix.tx, p.x * baseMatrix.b + p.y * baseMatrix.d + baseMatrix.ty + h, COLOR); } bmd.applyFilter(bmd, bmd.rect, basePoint, blur); bmd.colorTransform(bmd.rect, colorTf); bmd.unlock(); } } } class Particle { public var x: Number = 0; public var y: Number = 0; public var vx: Number = 0; public var vy: Number = 0; public var next: Particle; }