package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; import frocessing.color.ColorBlend; import frocessing.color.FColor; import frocessing.math.FMath; /** * 激重です。 * ステージをドラッグで別の形になります。 * @author jc at bk-zen.com */ [SWF (backgroundColor = "0x0", frameRate = "30", width = "465", height = "465")] public class Attractor01 extends Sprite { private var bmd: BitmapData; private var isPlay: Boolean = true; private var count: int, maxden: int; private var a: Number, b: Number, c: Number, d: Number, nx: Number, ny: Number, ox: Number, oy: Number, lmd: Number; private var den: Vector.<Vector.<int>> = new Vector.<Vector.<int>>(465, true); private var pre: Vector.<Vector.<Number>> = new Vector.<Vector.<Number>>(465, true); private const sensitivity: Number = 0.0198411; private const hueBase: int = 180; public function Attractor01() { Wonderfl.capture_delay( 30 ); 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(465, 465, false, 0x0), "auto", true)); for (var i:int = 0; i < 465; i++) { den[i] = new Vector.<int>(465, true); pre[i] = new Vector.<Number>(465, true); } reparam(); addEventListener(Event.ENTER_FRAME, loop); stage.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown); stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp); trace(hueBase); } private function onMouseUp(e: MouseEvent): void { stage.removeEventListener(MouseEvent.MOUSE_MOVE, onMouseMove); isPlay = true; count = 0; } private function onMouseDown(e: MouseEvent): void { stage.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMove); } private function onMouseMove(e: MouseEvent): void { isPlay = false; reparam(mouseX, mouseY); } private function reparam(mx: Number = 0, my: Number = 0): void { a = FMath.map(mx, 0, 456, -1, 1) * sensitivity; b = FMath.map(my, 0, 465, -1, 1) * sensitivity; c = FMath.map(mx, 0, 465, 1, -1) * sensitivity; d = FMath.map(my, 0, 465, 1, -1) * sensitivity; ox = oy = 465 / 2; update(true, 1, 100); } private function loop(e: Event): void { if (isPlay) { count++; if (count > 255) isPlay = false; update(false, 4, 0); } } private function update(clear: Boolean, s: int, f: Number): void { var i: int, j: int, k: int, e: int, h_: Number, s_: Number, v_: Number, le: Number, col: uint; if (clear) for (i = 0; i < 465; i++) for (j = 0; j < 465; j++) den[i][j] = pre[i][j] = 0; for (i = 0; i < s; i++) { for (j = 0; j < 10000; j++) { nx = (((Math.sin(a * oy) - Math.cos(b * ox)) * 93) + 232.5) + Math.random() * 0.002 - 0.001; ny = (((Math.sin(c * ox) - Math.cos(d * oy)) * 93) + 232.5) + Math.random() * 0.002 - 0.001; if ( (nx > 0) && (nx < 465) && (ny > 0) && (ny < 465) ) { if ((k = (den[int(nx)][int(ny)] += 1)) > maxden) maxden = k; pre[int(nx)][int(ny)] = ox; } ox = nx; oy = ny; }} lmd = Math.log(maxden); bmd.lock(); if (clear) bmd.fillRect(bmd.rect, 0x0); for (i = 0; i < 465; i++) { for (j = 0; j < 465; j++) { if ((e = den[i][j]) > 0) bmd.setPixel(i, j, ColorBlend.soft(FColor.HSVtoValue(hueBase + hueBase * (pre[i][j] / 465), 0.5 - 0.5 * ((le = Math.log(e)) / lmd), (le + f) / lmd), bmd.getPixel(i, j))); }} bmd.unlock(); } } }