// forked from milkmidi's code on 2008-12-25 package { import flash.display.*; import flash.events.Event; import flash.filters.DropShadowFilter; import flash.filters.GlowFilter; import flash.geom.Point; [SWF(width = "465", height = "465", frameRate = "30", backgroundColor = "#000000", pageTitle = "milkmidi.com")] public class MouseGrowEffect extends Sprite { private const N:int = 10; private var dotarr:Vector.<Point> = new Vector.<Point>(N, true); private var canvas:Shape = new Shape(); public function MouseGrowEffect() { for (var i:int = 0; i < N; i++) dotarr[i] = new Point(mouseX, mouseY); this.addChild(canvas); var glow0:GlowFilter = new GlowFilter(0xffffff, 1, 16, 16, 1, 1, true, false); var glow1:GlowFilter = new GlowFilter(0x00ffff, 1, 8, 8, 1, 1, false, false); var dropShadow0:DropShadowFilter = new DropShadowFilter(0, 90, 0x0033cc, 1, 64, 64, 5, 3, false, false, false); canvas.filters = [glow0, glow1, dropShadow0]; this.addEventListener(Event.ENTER_FRAME, onEventEnterFrame); } private function onEventEnterFrame(e:Event):void { dotarr[N - 1].x = mouseX; dotarr[N - 1].y = mouseY; var _g:Graphics = canvas.graphics; _g.clear(); var _prevPoint:Point = dotarr[0]; for (var i:int = 1; i < N; ++i) { var _prev:Point = dotarr[i - 1]; var _current:Point = dotarr[i]; _g.lineStyle(i, 0xffffff, 1, true, "none", "round", "round"); var _point:Point = new Point(_prev.x + (_current.x - _prev.x) / 2, _prev.y + (_current.y - _prev.y) / 2); _g.moveTo(_prevPoint.x,_prevPoint.y); _g.curveTo(_prev.x,_prev.y,_point.x,_point.y); _prevPoint = _point; _prev.x = _current.x; _prev.y = _current.y; } } } }