/** * フルスクリーン再生のビロビロ具合も是非お楽しみください。 */ package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.Graphics; import flash.display.Shape; import flash.display.Sprite; import flash.display.StageAlign; import flash.display.StageQuality; import flash.display.StageScaleMode; import flash.events.Event; import flash.events.MouseEvent; import com.flashdynamix.utils.SWFProfiler; [SWF(width = 465, height = 465, backgroundColor = 0x0, frameRate = 60)] public class Main extends Sprite { //---------------------------------------- //CLASS CONSTANTS private const W:uint = 465; private const H:uint = 465; private const DIVIDE_X:uint = 40; private const DIVIDE_Y:uint = 40; private const SPRING:Number = 0.3; private const FRICTION:Number = 0.9; //---------------------------------------- //VARIABLES //nodes[idy][idx] private var _nodes:Vector.<Vector.<Node>>; //head node of linked list private var _first:Node; //drawing canvas private var _canvas:Sprite; //background private var _background:BitmapData; private var _isOnStage:Boolean; //---------------------------------------- //METHODS public function Main():void { Wonderfl.disable_capture(); //Wonderfl.capture_delay(10); addEventListener(Event.ADDED_TO_STAGE, _initialize); } /** * entry point */ private function _initialize(e:Event):void { removeEventListener(Event.ADDED_TO_STAGE, _initialize); SWFProfiler.init(this); stage.scaleMode = StageScaleMode.NO_SCALE; stage.quality = StageQuality.LOW; var i:uint, j:uint, node:Node, old:Node; var nx:uint = DIVIDE_X + 1; var ny:uint = DIVIDE_Y + 1; _isOnStage = false; //背景カラー _background = new BitmapData(W, H, false, 0x0); addChild(new Bitmap(_background)); //ドロー用 _canvas = addChild(new Sprite()) as Sprite; //ネットワーク生成 _nodes = new Vector.<Vector.<Node>>(ny); for (i = 0; i < ny; ++i) { _nodes[i] = new Vector.<Node>(ny); for (j = 0; j < ny; ++j) { _nodes[i][j] = node = new Node(); node.ox = node.x = j * W / DIVIDE_X; node.oy = node.y = i * H / DIVIDE_Y; } } var bounds:Vector.<Boolean> = new Vector.<Boolean>(4); //コネクション生成 for (i = 0; i < ny; ++i) { for (j = 0; j < nx; ++j) { node = _nodes[i][j]; //隣接ノード bounds[0] = (i == 0 ) ? true : false; bounds[1] = (j == nx - 1) ? true : false; bounds[2] = (i == ny - 1) ? true : false; bounds[3] = (j == 0 ) ? true : false; node.nn[0] = (bounds[0] ) ? null : _nodes[i - 1][j ]; //top - center node.nn[1] = (bounds[0] || bounds[1]) ? null : _nodes[i - 1][j + 1]; //top - right node.nn[2] = (bounds[1] ) ? null : _nodes[i ][j + 1]; //middle - right node.nn[3] = (bounds[1] || bounds[2]) ? null : _nodes[i + 1][j + 1]; //bottom - right node.nn[4] = (bounds[2] ) ? null : _nodes[i + 1][j ]; //bottom - center node.nn[5] = (bounds[2] || bounds[3]) ? null : _nodes[i + 1][j - 1]; //bottom - left node.nn[6] = (bounds[3] ) ? null : _nodes[i ][j - 1]; //middle - left node.nn[7] = (bounds[3] || bounds[0]) ? null : _nodes[i - 1][j - 1]; //top - left //リンクリスト if (_first == null) { old = _first = node; } else { old.next = node; old = node; } } } addEventListener(Event.ENTER_FRAME, _updateHandler); stage.addEventListener(MouseEvent.MOUSE_OVER, _stageMouseOverHandler); stage.addEventListener(Event.MOUSE_LEAVE, _stageMouseLeaveHandler); } /** * アップデート */ private function _updateHandler(e:Event):void { _interaction(); _draw(); } /** * マウスインタラクションの反映 */ private function _interaction():void { var tx:Number, ty:Number, dx:Number, dy:Number, dist:Number, spring:Number = SPRING, friction:Number = FRICTION, node:Node = _first; do { if (_isOnStage) { dx = node.ox - mouseX; dy = node.oy - mouseY; dist = Math.sqrt(dx * dx + dy * dy) + 1; tx = node.ox + dx / dist * 100; ty = node.oy + dy / dist * 100; } else { tx = node.ox; ty = node.oy; } node.vx += (tx - node.x) * spring; node.vy += (ty - node.y) * spring; node.x += node.vx *= friction; node.y += node.vy *= friction; } while (node = node.next); } /** * 描画 */ private function _draw():void { var n1:Node, n2:Node, n3:Node, n4:Node, px:Number, py:Number, g:Graphics = _canvas.graphics; g.clear(); g.lineStyle(1, 0xffffff); var node:Node = _first; do { px = node.x; py = node.y; if ((n1 = node.nn[1])) { g.moveTo(px, py); g.lineTo(n1.x, n1.y); } if ((n2 = node.nn[2])) { g.moveTo(px, py); g.lineTo(n2.x, n2.y); } if ((n3 = node.nn[3])) { g.moveTo(px, py); g.lineTo(n3.x, n3.y); } if ((n4 = node.nn[4])) { g.moveTo(px, py); g.lineTo(n4.x, n4.y); } } while (node = node.next); } /** * マウスがステージ内へ入ったとき */ private function _stageMouseOverHandler(e:MouseEvent):void { _isOnStage = true; } /** * マウスがステージ外へ出たとき */ private function _stageMouseLeaveHandler(e:Event):void { _isOnStage = false; } } } internal class Node { //---------------------------------------- //VARIABLES public var vx:Number; public var vy:Number; public var x:Number; public var y:Number; public var ox:Number; public var oy:Number; public var nn:Vector.<Node>; public var next:Node; //---------------------------------------- //METHODS public function Node():void { vx = vy = x = y = ox = oy = 0; nn = new Vector.<Node>(8); } }