// forke// forked from Saqoosha's Rainbow // forked from siba2260's 残像 // YAhoo it has a better screenshot now! package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.BlendMode; import flash.display.Graphics; import flash.display.PixelSnapping; import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; import flash.filters.ColorMatrixFilter; import flash.geom.ColorTransform; import flash.geom.Matrix; import flash.geom.Point; import frocessing.color.ColorHSV; import frocessing.color.ColorRGB; [SWF(width="465", height="465", backgroundColor="0x000000", frameRate="60")] public class Rainbow extends Sprite { private static const ZERO_POINT:Point = new Point(0, 0); private static const NUM_OBJECTS:int = 9; private static const FORCE:Number = 500.0; private static const COLOR_SPEED:Number = 0.05; private var _center:Sprite; private var _images:Array; private var _tmp:BitmapData; private var _mousePressed:Boolean = false; private var _prevTime:int = 0; private var _colorOffset:Number = 0; private var _mousePt:Point = new Point(); private var afterBitmapData :BitmapData = new BitmapData(465, 465, false, 0x00FFFFFF); private var afterImage :Bitmap = new Bitmap(afterBitmapData, PixelSnapping.AUTO, false); private var _canvas :Sprite = new Sprite(); public function Rainbow() { addChild(_canvas); addChild(afterImage); afterImage.x = 0 afterImage.y = 0 createImage(); stage.quality = "low"; } private function createImage():void { var original:BitmapData = new BitmapData(100, 100, true, 0x00000000); var circleSprite:Sprite = new Sprite(); with(circleSprite) { graphics.beginFill(0xffffff); graphics.moveTo(0, 100) graphics.lineTo(100, 100); graphics.lineTo(50, 0); graphics.lineTo(0, 100); graphics.endFill(); } original.draw(circleSprite); _center = new Sprite();//addChild(new Sprite()) as Sprite; _center.x = stage.stageWidth / 2; _center.y = stage.stageHeight / 2; var rs:Number = 0, gs:Number = 0, bs:Number = 0; var i:int; var c:ColorRGB; for (i = 0; i < NUM_OBJECTS; i++) { c = new ColorHSV(i / NUM_OBJECTS * 360, 1, 1).toRGB(); rs += c.r; gs += c.g; bs += c.b; } _images = []; for (i = 0; i < NUM_OBJECTS; i++) { var a:Number = Math.PI * 2 * i / NUM_OBJECTS; c = new ColorHSV(i / NUM_OBJECTS * 360, 1, 1).toRGB(); var img:ColoredImage = _center.addChild(new ColoredImage(original, c.r / rs, c.g / gs, c.b / bs)) as ColoredImage; var px:Number = Math.cos(a) * 60; var py:Number = Math.sin(a) * 60; img.init(px, py); _images.push(img); var f:Number = Math.random() * 100 img.addForce(Math.cos(a) *f, Math.sin(a) * f); } addEventListener(Event.ENTER_FRAME, _update); stage.addEventListener(MouseEvent.MOUSE_DOWN, _onMouseDown); stage.addEventListener(MouseEvent.MOUSE_UP, _onMouseUp); } private function _onMouseDown(e:MouseEvent):void { _mousePressed = true; } private function _onMouseUp(e:MouseEvent):void { _mousePressed = false; } private function _update(e:Event):void { _mousePt.x = _center.mouseX; _mousePt.y = _center.mouseY var img:ColoredImage; for each (img in _images) { var dist:Number = Math.max(Point.distance(_mousePt, img.initPos), 3); var lc:Point = img.initPos.subtract(_mousePt); var a:Number = Math.atan2(lc.y, lc.x); var f:Number = 1 / dist * FORCE * (_mousePressed ? 3 : 1); img.addForce(Math.cos(a) * f, Math.sin(a) * f); img.update(); } afterBitmapData.colorTransform(afterBitmapData.rect, new ColorTransform(1, 1, 1, 1, 0, 0, 0, -4)); var mat:Matrix = new Matrix(); mat.translate(_center.x, _center.y); afterBitmapData.draw(_center, mat); } } } import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.BlendMode; import flash.display.Graphics; import flash.display.Sprite; import flash.filters.ColorMatrixFilter; import flash.geom.Point; import frocessing.color.ColorRGB; class ColoredImage extends Sprite { public static var ACC_PARAM:Number = 0.1; public static var VELOCITY_PARAM:Number = 0.7 private var _ix:Number; private var _iy:Number; private var _vx:Number = 0; private var _vy:Number = 0; private var _ax:Number = 0; private var _ay:Number = 0; private var _img:Bitmap; public function ColoredImage(image:BitmapData, r:Number, g:Number, b:Number) { _img = addChild(new Bitmap(image)) as Bitmap; _img.x = -_img.width / 2; _img.y = -_img.height / 2; _img.filters = [ new ColorMatrixFilter([ r, 0, 0, 0, 0, 0, g, 0, 0, 0, 0, 0, b, 0, 0, 0, 0, 0,0.25, 0 ]) ]; _img.blendMode = BlendMode.ADD; } public function init(ix:Number, iy:Number):void { x = _ix = ix; y = _iy = iy; _img.x -= ix; _img.y -= iy; } public function addForce(ax:Number, ay:Number):void { _ax += ax + Math.random() * 4-2 _ay += ay + Math.random() * 4-2 } public function update():void { _ax += (_ix - x) * ACC_PARAM; _ay += (_iy - y) * ACC_PARAM; _vx = (_vx + _ax) * VELOCITY_PARAM; _vy = (_vy + _ay) * VELOCITY_PARAM; x += _vx; y += _vy; _ax = _ay = 0; } public function get ix():Number { return _ix; } public function get iy():Number { return _iy; } public function get initPos():Point { return new Point(_ix, _iy); } }