flex:--11

.gitignore

+# project ignores
+node_modules
+released
+.DS_Store
+.idea
+output.js
+output.js.map
\ No newline at end of file

README.md

+# 推箱子 游戏解析
+
+推箱子小游戏是很多人的童年回忆.
+今天是 6.1,我们就用简单的代码来实现一下.
+
+## 推箱子需求
+
+思考:
+1、需要一个代码开发环境.
+2、需要一个 canvas 引擎.
+3、需要准备一个人物来做我们的主人公,一个箱子,一个箱子推放的终点,一个燃烧的箱子,还有我们的游戏地图(墙体).
+
+## 一、简单搭建一个 TS 环境
+
+TS 不能直接在浏览器中运行,我们需要使用`ts-loader`.
+使用`webpack`打包.
+
+```js
+    entry: './src/main.ts',
+    module: {
+        rules: [
+            {
+                test: /\.tsx?$/,
+                use: 'ts-loader',
+                exclude: /node_modules/
+            }
+        ]
+    },
+    resolve: {
+        extensions: ['.tsx', '.ts', '.js']
+    },
+    output: {
+        filename: 'output.js',
+        path: __dirname,
+        libraryTarget: 'umd',
+    }
+
+```
+
+指定根目录下一个`tsconfig.json`,来进行项目的一些配置.
+
+```js
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "es5",
+        "noImplicitAny": false,
+        "sourceMap": true,
+        "removeComments": true,
+        "noEmitOnError":true,
+        "outDir":"dist",
+        "lib": [
+			"es5",
+			"dom",
+			"es2015.promise"
+		]
+    },
+    "exclude": [
+        "node_modules"
+    ]
+}
+```
+
+具体配置这里不展开细讲.
+至此一个简单的 TS 开发环境就完成了.
+
+## 二、引入游戏引擎
+
+游戏引擎只是为了我们更好的使用`canvas`.
+有兴趣的同学可以了解下`pixi`, `egret`,`phaser`,`laya`,`cocos`等优秀的游戏引擎.其应用但不局限于游戏.
+这里我们使用可梦引擎`fyge`.(兑吧专用).
+
+使用方法:
+
+1、使用 CDN 引入
+
+```js
+<script
+  src="//yun.duiba.com.cn/db_games/libs0924/fyge2020.min.js"
+  crossorigin="anonymous"
+></script>
+```
+
+2、使用本地文件
+
+```js
+<script src="libs/fyge.min.js"></script>
+```
+
+3、使用 npm
+
+```js
+ npm i fyge //具体名字问大师兄
+```
+
+我们这里使用本地文件.
+引入`FYGE.d.ts`便于查找 API.
+
+## 三、搭建简单的舞台
+
+创建一个入口类`Main`;
+初始化我们的`canvas`画布.
+
+```js
+var stage = new FYGE.Stage(
+  canvas,
+  750, //设计宽度，按设计搞给的就行
+  1624, //设计高度
+  document.body.clientWidth,
+  document.body.clientHeight,
+  FYGE.RENDERER_TYPE.WEBGL,
+  false, //视窗居中裁切
+)
+```
+
+舞台创建完成之后,我们需要每一帧更新舞台,使舞台动起来.
+
+```js
+stage.flush()
+```
+
+在舞台`stage`加载完成之后就可以加载我们的游戏场景了.
+游戏场景中包括一些显示对象和一些游戏逻辑.
+
+```js
+const gameScene: GameScene = this.stage.addChild(new GameScene())
+```
+
+## 四、开始我们的游戏场景
+
+首先,完成一个推箱子游戏,需要些什么?
+
+1、准备素材
+
+墙体,箱子,着火的箱子,箱子的终点,人物
+
+![素材](//yun.duiba.com.cn/spark/assets/453d81424cef82ca68d29dec7861d2c9028a0685.png '素材')
+
+2、编辑场景地图
+
+为了可扩展,我们选用 20\*20 的二维数组来编辑我们的地图.
+定义数据映射关系.
+0 -- 背景
+1 -- 墙壁
+2 -- 地板
+3 -- 箱子
+4 -- 终点
+5 -- 人
+6 -- 着火的箱子
+
+```js
+/** 格子 0 无 1 墙壁 2 地板 3 箱子 4 箱子终点 5 人 6 着火的箱子 */
+export enum BLOCK {
+    wall = 1,
+    ground = 2,
+    box = 3,
+    end = 4,
+    player = 5,
+    badBox = 6
+}
+```
+
+我们先来编辑第一关的地图.
+
+```js
+[
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 1, 1, 1, 3, 2, 3, 4, 1, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 1, 4, 2, 3, 5, 1, 1, 1, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 1, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+]
+```
+
+地图编辑完成之后,我们在舞台上渲染场景如下:
+
+```js
+/** 使用精灵图 */
+this.mapContainer.addChild(FYGE.Sprite.fromUrl(RES.box))
+```
+
+![场景](//yun.duiba.com.cn/spark/assets/bd0e11ef7c3abb1f790b2c58cd98854c004e3d2b.png '场景')
+
+这里我们绘制场景,使用数据映射关系,每一个格子`80*80`;
+其实我们推箱子的原理就是更新数据结构.
+每走一步,就是更新我们的地图,通过新的二维数组,渲染新的地图,达到视觉上推箱子的效果.
+
+## 五、开始推箱子
+
+这里我们简单点,直接监听键盘事件`document.onkeydown`.
+通过`e.key`判断上`w`、下`s`、左`a`、右`d`.
+
+我们判断一个格子是否可以更新(推动),需要判断下一个位置和下下个位置.
+
+所以我们需要记录这两个数组位置:
+
+```js
+let p1 = {
+  x: 0,
+  y: 0,
+}
+let p2 = {
+  x: 0,
+  y: 0,
+}
+```
+
+1、什么样的情况我们推不动?
+
+- 推动方向是墙体
+- 推动方向是箱子,箱子同一个方向的下一个位置是箱子,墙体(这里分为着火的箱子和目标箱子)
+
+2、什么样的情况下我们可以移动?
+
+- 下一个位置是空地
+- 下一个位置是箱子终点
+- 下一个位置是箱子,下下个位置是空地
+- 下一个位置是箱子,下下个位置是箱子终点(分俩箱子)
+
+3、注意
+
+- 当前人物位置是箱子终点时,需要还原
+
+思考完成之后我们就可以写代码了.
+
+```js
+const { x: x1, y: y1 } = p1;
+const { x: x2, y: y2 } = p2;
+const { x, y } = this.playerPointer;
+//不能移动 墙体
+if (this.curMap[x1][y1] == BLOCK.wall) {
+    return false;
+}
+...
+// 可以移动 地板 
+if (this.curMap[x1][y1] == BLOCK.ground || this.curMap[x1][y1] == BLOCK.end) {
+    this.curMap[x][y] = BLOCK.ground;
+    this.curMap[x1][y1] = BLOCK.player;
+}
+....
+
+if (LEVEL[`LV_${this.lv}`][x][y] == BLOCK.end) {
+    this.curMap[x][y] = BLOCK.end;
+}
+```
+
+然后使用新的二维数组去渲染出场景.
+这个时候我们的推箱子基本就要大功告成了.
+
+
+## 六、判断结果
+怎么样算是过关呢?
+
+比较关卡数组和当前数组.
+
+当每一个箱子的终点都变成箱子的时候就过关了.
+
+当然,我们也可以加上步数限制.
+
+```js
+/** 判断是否结束 */
+private gameOver() {
+    const mapList = LEVEL[`LV_${this.lv}`];
+    for (let i = 0; i < mapList.length; i++) {
+        for (let j = 0; j < mapList[i].length; j++) {
+            if (mapList[i][j] == BLOCK.end && this.curMap[i][j] != BLOCK.box) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+```
+还可以加上关卡和步数显示.
+
+## 七、切换关卡
+怎么到下一关呢?
+其实也是更新数据啦.
+
+数据关系映射好,直接进行关卡重新绘制即可.
+
+同样,可以加个按钮,点击可以重玩本关.
+
+```js
+ /** 初始化游戏 */
+initGame() {
+    this.step = 0;
+    this.curMap = GUtils.copyArray(LEVEL[`LV_${this.lv}`]);
+    this.renderMap();
+}
+
+/** 重新开始本关 */
+resetGame() {
+    this.initGame();
+}
+```
+
+至此,大功告成.
+六一写个推箱子助助兴,回忆童年时光.
\ No newline at end of file

index.html

+<!DOCTYPE html>
+<html lang="zh">
+
+<head>
+    <meta charset="UTF-8">
+    <title>Document</title>
+    <meta name="viewport"
+        content="width=device-width,initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no" />
+    <meta name="apple-mobile-web-app-capable" content="yes" />
+    <meta name="full-screen" content="true" />
+    <meta name="screen-orientation" content="portrait" />
+    <meta name="x5-fullscreen" content="true" />
+    <meta name="360-fullscreen" content="true" />
+    <!-- 渲染引擎 -->
+    <!-- <script src="//yun.duiba.com.cn/db_games/libs0924/fyge2020.min.js" crossorigin="anonymous"></script> -->
+    <!-- svga解析库 -->
+    <!-- <script src="//yun.duiba.com.cn/db_games/libs0924/svgaParser.minWeb.js" crossorigin="anonymous"></script> -->
+    <!-- 本地的js,需要souremap调试的用本地js -->
+    <script src="libs/fyge.min.js"></script>
+    <script src="//yun.duiba.com.cn/db_games/libs0924/howler.min.js"></script>
+    <!-- <script src="libs/svgaParser.min.js"></script> -->
+    <!-- <script src="libs/svgaParser.min1.js"></script> -->
+    <style>
+        html,
+        body {
+            padding: 0;
+            margin: 0;
+            border: 0;
+
+            width: 100%;
+            height: 100%;
+            overflow: hidden;
+            position: absolute;
+            background-color: #73ad45;
+            /* background: linear-gradient(#93dbb7,#ff0,#b5d89a); */
+            /* background: linear-gradient(#93dbb7,#b5d89a); */
+            /* 背景图片，解决加载太慢，白屏问题,加了这个下面的__loading__可以删掉了 */
+            /* background-size: 100%;
+            background-position: center;
+            background-image: url("https://yun.duiba.com.cn/db_games/activity/game/1550472986/resource/assets/playscene/playscenebg.jpg"); */
+        }
+    </style>
+</head>
+
+<body>
+    <div id="cusEngine" style="line-height:0;font-size:0;position: absolute;">
+        <canvas id="canvas" style="width: 100%;height: 100%"></canvas>
+    </div>
+    <!-- 帧率检测 -->
+    <!-- <script src="//yun.duiba.com.cn/db_games/libs0924/stats.js"></script> -->
+    <!-- <script src="https://yun.duiba.com.cn/db_games/libs0126/stats.js"></script> -->
+    <script src="libs/matter.min.js"></script>
+    <script type="text/javascript" src="//yun.duiba.com.cn/js-libs/vConsole/3.3.4/vconsole.min.js"
+        crossorigin="anonymous"></script>
+    <script>
+        var vConsole = new VConsole();
+        window.addEventListener("load", function () {
+            //获取canvas
+            var canvas = document.getElementById("canvas");
+            canvas.width = document.body.clientWidth * (window.devicePixelRatio || 1);
+            canvas.height = document.body.clientHeight * (window.devicePixelRatio || 1);
+            var main = new Main(canvas);
+            var mouseEvent = main.stage.onMouseEvent.bind(main.stage);
+            canvas.addEventListener("touchstart", mouseEvent, false);
+            canvas.addEventListener('touchmove', mouseEvent, false);
+            canvas.addEventListener('touchend', mouseEvent, false);
+            window.stage = main.stage
+        })
+    </script>
+    <!-- 构建的js -->
+    <script src="output.js" crossorigin="anonymous"></script>
+</body>
+
+</html>
\ No newline at end of file

libs/SvgaParser.d.ts

+
+declare module SvgaParser {
+    /**
+     * 加载方法
+     * @param url 资源路径
+     * @param success 
+     * @param failure 
+     */
+    export function loadSvga(url: string, success: (videoItem: VideoEntity) => void, failure?: (err: string) => void): void;
+    /**
+     * 导出只是当作类型接口用
+     */
+    export interface VideoEntity {
+        /**
+         * SVGA 文件版本
+         */
+        version: string;
+        /**
+         * 影片尺寸
+         */
+        videoSize: {
+            width: number;
+            height: number;
+        };
+        /**
+         * 帧率，60，30等每秒
+         */
+        FPS: number;
+        /**
+         * 总帧数
+         */
+        frames: number;
+        /**
+         * base64图片数据记录
+         */
+        images: {
+            [key: string]: string
+        };
+        /**
+         * 图片是否已被缓存，缓存全局，注意名字覆盖
+         */
+        hasBeenCached: boolean;
+        /**
+         * sprite对象数据
+         */
+        sprites: SpriteEntity[];
+
+    }
+    interface SpriteEntity {
+        /**
+         * 标识
+         */
+        matteKey: string;
+        /**
+         * 图片key值
+         */
+        imageKey: string;
+        /**
+         * 帧数据数组
+         */
+        frames: FrameEntity[];
+    }
+    /**
+     * 还有很多其他数据，暂不需要，比如矢量路径和遮罩路径暂时都无
+     */
+    interface FrameEntity {
+        /**
+         * 透明度
+         */
+        alpha: number;
+        /**
+         * 2维矩阵数据
+         */
+        transform: {
+            a: number,
+            b: number,
+            c: number,
+            d: number,
+            tx: number,
+            ty: number,
+        };
+    }
+}
+
+declare module "svga-parser" { export = SvgaParser; }
\ No newline at end of file

libs/howler.d.ts

+// Type definitions for howler.js v2.1.1
+// Project: https://github.com/goldfire/howler.js
+// Definitions by: Pedro Casaubon <https://github.com/xperiments>
+//                 Alexander Leon <https://github.com/alien35>
+//                 Nicholas Higgins <https://github.com/nicholashza>
+//                 Carlos Urango <https://github.com/cjurango>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+interface HowlerGlobal {
+    mute(muted: boolean): this;
+    volume(): number;
+    volume(volume: number): this;
+    codecs(ext: string): boolean;
+    unload(): this;
+    usingWebAudio: boolean;
+    html5PoolSize: number;
+    noAudio: boolean;
+    autoUnlock: boolean;
+    autoSuspend: boolean;
+    ctx: AudioContext;
+    masterGain: GainNode;
+
+    stereo(pan: number): this;
+    pos(x: number, y: number, z: number): this | void;
+    orientation(x: number, y: number, z: number, xUp: number, yUp: number, zUp: number): this | void;
+}
+
+declare let Howler: HowlerGlobal;
+
+interface IHowlSoundSpriteDefinition {
+    [name: string]: [number, number] | [number, number, boolean]
+}
+
+interface IHowlProperties {
+    src: string | string[];
+    volume?: number;
+    html5?: boolean;
+    loop?: boolean;
+    preload?: boolean;
+    autoplay?: boolean;
+    mute?: boolean;
+    sprite?: IHowlSoundSpriteDefinition;
+    rate?: number;
+    pool?: number;
+    format?: string[] | string;
+    xhrWithCredentials?: boolean;
+    onload?: () => void;
+    onloaderror?: (soundId: number, error: any) => void;
+    onplay?: (soundId: number) => void;
+    onplayerror?: (soundId: number, error: any) => void;
+    onend?: (soundId: number) => void;
+    onpause?: (soundId: number) => void;
+    onstop?: (soundId: number) => void;
+    onmute?: (soundId: number) => void;
+    onvolume?: (soundId: number) => void;
+    onrate?: (soundId: number) => void;
+    onseek?: (soundId: number) => void;
+    onfade?: (soundId: number) => void;
+    onunlock?: (soundId: number) => void;
+}
+
+interface Howl {
+    play(spriteOrId?: string | number): number; // .play() is not chainable; the other methods are
+    pause(id?: number): this;
+    stop(id?: number): this;
+
+    mute(): boolean;
+    mute(muted: boolean, id?: number): this;
+
+    volume(): number;
+    volume(idOrSetVolume: number): this | number;
+    volume(volume: number, id: number): this;
+
+    fade(from: number, to: number, duration: number, id?: number): this;
+
+    rate(): number;
+    rate(idOrSetRate: number): this | number;
+    rate(rate: number, id: number): this;
+
+    seek(seek?: number, id?: number): this | number;
+
+    loop(id?: number): boolean;
+    loop(loop: boolean, id?: number): this;
+
+    playing(id?: number): boolean;
+    duration(id?: number): number;
+    state(): 'unloaded' | 'loading' | 'loaded';
+    load(): this;
+    unload(): void;
+
+    on(event: 'load', callback: () => void, id?: number): this;
+    on(event: 'loaderror', callback: (soundId: number, error: any) => void, id?: number): this;
+    on(event: 'play', callback: (soundId: number) => void, id?: number): this;
+    on(event: 'playerror', callback: (soundId: number, error: any) => void, id?: number): this;
+    on(event: 'end', callback: (soundId: number) => void, id?: number): this;
+    on(event: 'pause', callback: (soundId: number) => void, id?: number): this;
+    on(event: 'stop', callback: (soundId: number) => void, id?: number): this;
+    on(event: 'mute', callback: (soundId: number) => void, id?: number): this;
+    on(event: 'volume', callback: (soundId: number) => void, id?: number): this;
+    on(event: 'rate', callback: (soundId: number) => void, id?: number): this;
+    on(event: 'seek', callback: (soundId: number) => void, id?: number): this;
+    on(event: 'fade', callback: (soundId: number) => void, id?: number): this;
+    on(event: string, callback: Function, id?: number): this;
+    on(event: 'unlock', callback: (soundId: number) => void, id?: number): this;
+
+    once(event: 'load', callback: () => void, id?: number): this;
+    once(event: 'loaderror', callback: (soundId: number, error: any) => void, id?: number): this;
+    once(event: 'play', callback: (soundId: number) => void, id?: number): this;
+    once(event: 'playerror', callback: (soundId: number, error: any) => void, id?: number): this;
+    once(event: 'end', callback: (soundId: number) => void, id?: number): this;
+    once(event: 'pause', callback: (soundId: number) => void, id?: number): this;
+    once(event: 'stop', callback: (soundId: number) => void, id?: number): this;
+    once(event: 'mute', callback: (soundId: number) => void, id?: number): this;
+    once(event: 'volume', callback: (soundId: number) => void, id?: number): this;
+    once(event: 'rate', callback: (soundId: number) => void, id?: number): this;
+    once(event: 'seek', callback: (soundId: number) => void, id?: number): this;
+    once(event: 'fade', callback: (soundId: number) => void, id?: number): this;
+    once(event: string, callback: Function, id?: number): this;
+    once(event: 'unlock', callback: (soundId: number) => void, id?: number): this;
+
+    off(event: string, callback?: Function, id?: number): this;
+    off(): this;
+
+    stereo(pan: number, id?: number): this | void;
+    pos(x: number, y: number, z: number, id?: number): this | void;
+    orientation(x: number, y: number, z: number, xUp: number, yUp: number, zUp: number): this | void;
+    pannerAttr(o: {
+        coneInnerAngle?: number,
+        coneOuterAngle?: number, coneOuterGain?: number,
+        distanceModel: 'inverse' | 'linear', maxDistance: number,
+        panningModel: 'HRTF' | 'equalpower', refDistance: number, rolloffFactor: number
+    }, id?: number): this;
+}
+
+interface HowlStatic {
+    new(properties: IHowlProperties): Howl;
+}
+
+declare let Howl: HowlStatic;
+
+declare module "howler" {
+    export let Howler: HowlerGlobal;
+    export let Howl: HowlStatic;
+}

libs/howler.min.js

+/*! howler.js v2.2.0 | (c) 2013-2020, James Simpson of GoldFire Studios | MIT License | howlerjs.com */
+!function(){"use strict";var e=function(){this.init()};e.prototype={init:function(){var e=this||n;return e._counter=1e3,e._html5AudioPool=[],e.html5PoolSize=10,e._codecs={},e._howls=[],e._muted=!1,e._volume=1,e._canPlayEvent="canplaythrough",e._navigator="undefined"!=typeof window&&window.navigator?window.navigator:null,e.masterGain=null,e.noAudio=!1,e.usingWebAudio=!0,e.autoSuspend=!0,e.ctx=null,e.autoUnlock=!0,e._setup(),e},volume:function(e){var o=this||n;if(e=parseFloat(e),o.ctx||_(),void 0!==e&&e>=0&&e<=1){if(o._volume=e,o._muted)return o;o.usingWebAudio&&o.masterGain.gain.setValueAtTime(e,n.ctx.currentTime);for(var t=0;t<o._howls.length;t++)if(!o._howls[t]._webAudio)for(var r=o._howls[t]._getSoundIds(),a=0;a<r.length;a++){var u=o._howls[t]._soundById(r[a]);u&&u._node&&(u._node.volume=u._volume*e)}return o}return o._volume},mute:function(e){var o=this||n;o.ctx||_(),o._muted=e,o.usingWebAudio&&o.masterGain.gain.setValueAtTime(e?0:o._volume,n.ctx.currentTime);for(var t=0;t<o._howls.length;t++)if(!o._howls[t]._webAudio)for(var r=o._howls[t]._getSoundIds(),a=0;a<r.length;a++){var u=o._howls[t]._soundById(r[a]);u&&u._node&&(u._node.muted=!!e||u._muted)}return o},stop:function(){for(var e=this||n,o=0;o<e._howls.length;o++)e._howls[o].stop();return e},unload:function(){for(var e=this||n,o=e._howls.length-1;o>=0;o--)e._howls[o].unload();return e.usingWebAudio&&e.ctx&&void 0!==e.ctx.close&&(e.ctx.close(),e.ctx=null,_()),e},codecs:function(e){return(this||n)._codecs[e.replace(/^x-/,"")]},_setup:function(){var e=this||n;if(e.state=e.ctx?e.ctx.state||"suspended":"suspended",e._autoSuspend(),!e.usingWebAudio)if("undefined"!=typeof Audio)try{var o=new Audio;void 0===o.oncanplaythrough&&(e._canPlayEvent="canplay")}catch(n){e.noAudio=!0}else e.noAudio=!0;try{var o=new Audio;o.muted&&(e.noAudio=!0)}catch(e){}return e.noAudio||e._setupCodecs(),e},_setupCodecs:function(){var e=this||n,o=null;try{o="undefined"!=typeof Audio?new Audio:null}catch(n){return e}if(!o||"function"!=typeof o.canPlayType)return e;var t=o.canPlayType("audio/mpeg;").replace(/^no$/,""),r=e._navigator&&e._navigator.userAgent.match(/OPR\/([0-6].)/g),a=r&&parseInt(r[0].split("/")[1],10)<33;return e._codecs={mp3:!(a||!t&&!o.canPlayType("audio/mp3;").replace(/^no$/,"")),mpeg:!!t,opus:!!o.canPlayType('audio/ogg; codecs="opus"').replace(/^no$/,""),ogg:!!o.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,""),oga:!!o.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,""),wav:!!o.canPlayType('audio/wav; codecs="1"').replace(/^no$/,""),aac:!!o.canPlayType("audio/aac;").replace(/^no$/,""),caf:!!o.canPlayType("audio/x-caf;").replace(/^no$/,""),m4a:!!(o.canPlayType("audio/x-m4a;")||o.canPlayType("audio/m4a;")||o.canPlayType("audio/aac;")).replace(/^no$/,""),m4b:!!(o.canPlayType("audio/x-m4b;")||o.canPlayType("audio/m4b;")||o.canPlayType("audio/aac;")).replace(/^no$/,""),mp4:!!(o.canPlayType("audio/x-mp4;")||o.canPlayType("audio/mp4;")||o.canPlayType("audio/aac;")).replace(/^no$/,""),weba:!!o.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/,""),webm:!!o.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/,""),dolby:!!o.canPlayType('audio/mp4; codecs="ec-3"').replace(/^no$/,""),flac:!!(o.canPlayType("audio/x-flac;")||o.canPlayType("audio/flac;")).replace(/^no$/,"")},e},_unlockAudio:function(){var e=this||n;if(!e._audioUnlocked&&e.ctx){e._audioUnlocked=!1,e.autoUnlock=!1,e._mobileUnloaded||44100===e.ctx.sampleRate||(e._mobileUnloaded=!0,e.unload()),e._scratchBuffer=e.ctx.createBuffer(1,1,22050);var o=function(n){for(;e._html5AudioPool.length<e.html5PoolSize;)try{var t=new Audio;t._unlocked=!0,e._releaseHtml5Audio(t)}catch(n){e.noAudio=!0;break}for(var r=0;r<e._howls.length;r++)if(!e._howls[r]._webAudio)for(var a=e._howls[r]._getSoundIds(),u=0;u<a.length;u++){var i=e._howls[r]._soundById(a[u]);i&&i._node&&!i._node._unlocked&&(i._node._unlocked=!0,i._node.load())}e._autoResume();var d=e.ctx.createBufferSource();d.buffer=e._scratchBuffer,d.connect(e.ctx.destination),void 0===d.start?d.noteOn(0):d.start(0),"function"==typeof e.ctx.resume&&e.ctx.resume(),d.onended=function(){d.disconnect(0),e._audioUnlocked=!0,document.removeEventListener("touchstart",o,!0),document.removeEventListener("touchend",o,!0),document.removeEventListener("click",o,!0);for(var n=0;n<e._howls.length;n++)e._howls[n]._emit("unlock")}};return document.addEventListener("touchstart",o,!0),document.addEventListener("touchend",o,!0),document.addEventListener("click",o,!0),e}},_obtainHtml5Audio:function(){var e=this||n;if(e._html5AudioPool.length)return e._html5AudioPool.pop();var o=(new Audio).play();return o&&"undefined"!=typeof Promise&&(o instanceof Promise||"function"==typeof o.then)&&o.catch(function(){console.warn("HTML5 Audio pool exhausted, returning potentially locked audio object.")}),new Audio},_releaseHtml5Audio:function(e){var o=this||n;return e._unlocked&&o._html5AudioPool.push(e),o},_autoSuspend:function(){var e=this;if(e.autoSuspend&&e.ctx&&void 0!==e.ctx.suspend&&n.usingWebAudio){for(var o=0;o<e._howls.length;o++)if(e._howls[o]._webAudio)for(var t=0;t<e._howls[o]._sounds.length;t++)if(!e._howls[o]._sounds[t]._paused)return e;return e._suspendTimer&&clearTimeout(e._suspendTimer),e._suspendTimer=setTimeout(function(){if(e.autoSuspend){e._suspendTimer=null,e.state="suspending";var n=function(){e.state="suspended",e._resumeAfterSuspend&&(delete e._resumeAfterSuspend,e._autoResume())};e.ctx.suspend().then(n,n)}},3e4),e}},_autoResume:function(){var e=this;if(e.ctx&&void 0!==e.ctx.resume&&n.usingWebAudio)return"running"===e.state&&"interrupted"!==e.ctx.state&&e._suspendTimer?(clearTimeout(e._suspendTimer),e._suspendTimer=null):"suspended"===e.state||"running"===e.state&&"interrupted"===e.ctx.state?(e.ctx.resume().then(function(){e.state="running";for(var n=0;n<e._howls.length;n++)e._howls[n]._emit("resume")}),e._suspendTimer&&(clearTimeout(e._suspendTimer),e._suspendTimer=null)):"suspending"===e.state&&(e._resumeAfterSuspend=!0),e}};var n=new e,o=function(e){var n=this;if(!e.src||0===e.src.length)return void console.error("An array of source files must be passed with any new Howl.");n.init(e)};o.prototype={init:function(e){var o=this;return n.ctx||_(),o._autoplay=e.autoplay||!1,o._format="string"!=typeof e.format?e.format:[e.format],o._html5=e.html5||!1,o._muted=e.mute||!1,o._loop=e.loop||!1,o._pool=e.pool||5,o._preload="boolean"!=typeof e.preload&&"metadata"!==e.preload||e.preload,o._rate=e.rate||1,o._sprite=e.sprite||{},o._src="string"!=typeof e.src?e.src:[e.src],o._volume=void 0!==e.volume?e.volume:1,o._xhr={method:e.xhr&&e.xhr.method?e.xhr.method:"GET",headers:e.xhr&&e.xhr.headers?e.xhr.headers:null,withCredentials:!(!e.xhr||!e.xhr.withCredentials)&&e.xhr.withCredentials},o._duration=0,o._state="unloaded",o._sounds=[],o._endTimers={},o._queue=[],o._playLock=!1,o._onend=e.onend?[{fn:e.onend}]:[],o._onfade=e.onfade?[{fn:e.onfade}]:[],o._onload=e.onload?[{fn:e.onload}]:[],o._onloaderror=e.onloaderror?[{fn:e.onloaderror}]:[],o._onplayerror=e.onplayerror?[{fn:e.onplayerror}]:[],o._onpause=e.onpause?[{fn:e.onpause}]:[],o._onplay=e.onplay?[{fn:e.onplay}]:[],o._onstop=e.onstop?[{fn:e.onstop}]:[],o._onmute=e.onmute?[{fn:e.onmute}]:[],o._onvolume=e.onvolume?[{fn:e.onvolume}]:[],o._onrate=e.onrate?[{fn:e.onrate}]:[],o._onseek=e.onseek?[{fn:e.onseek}]:[],o._onunlock=e.onunlock?[{fn:e.onunlock}]:[],o._onresume=[],o._webAudio=n.usingWebAudio&&!o._html5,void 0!==n.ctx&&n.ctx&&n.autoUnlock&&n._unlockAudio(),n._howls.push(o),o._autoplay&&o._queue.push({event:"play",action:function(){o.play()}}),o._preload&&"none"!==o._preload&&o.load(),o},load:function(){var e=this,o=null;if(n.noAudio)return void e._emit("loaderror",null,"No audio support.");"string"==typeof e._src&&(e._src=[e._src]);for(var r=0;r<e._src.length;r++){var u,i;if(e._format&&e._format[r])u=e._format[r];else{if("string"!=typeof(i=e._src[r])){e._emit("loaderror",null,"Non-string found in selected audio sources - ignoring.");continue}u=/^data:audio\/([^;,]+);/i.exec(i),u||(u=/\.([^.]+)$/.exec(i.split("?",1)[0])),u&&(u=u[1].toLowerCase())}if(u||console.warn('No file extension was found. Consider using the "format" property or specify an extension.'),u&&n.codecs(u)){o=e._src[r];break}}return o?(e._src=o,e._state="loading","https:"===window.location.protocol&&"http:"===o.slice(0,5)&&(e._html5=!0,e._webAudio=!1),new t(e),e._webAudio&&a(e),e):void e._emit("loaderror",null,"No codec support for selected audio sources.")},play:function(e,o){var t=this,r=null;if("number"==typeof e)r=e,e=null;else{if("string"==typeof e&&"loaded"===t._state&&!t._sprite[e])return null;if(void 0===e&&(e="__default",!t._playLock)){for(var a=0,u=0;u<t._sounds.length;u++)t._sounds[u]._paused&&!t._sounds[u]._ended&&(a++,r=t._sounds[u]._id);1===a?e=null:r=null}}var i=r?t._soundById(r):t._inactiveSound();if(!i)return null;if(r&&!e&&(e=i._sprite||"__default"),"loaded"!==t._state){i._sprite=e,i._ended=!1;var d=i._id;return t._queue.push({event:"play",action:function(){t.play(d)}}),d}if(r&&!i._paused)return o||t._loadQueue("play"),i._id;t._webAudio&&n._autoResume();var _=Math.max(0,i._seek>0?i._seek:t._sprite[e][0]/1e3),s=Math.max(0,(t._sprite[e][0]+t._sprite[e][1])/1e3-_),l=1e3*s/Math.abs(i._rate),c=t._sprite[e][0]/1e3,f=(t._sprite[e][0]+t._sprite[e][1])/1e3;i._sprite=e,i._ended=!1;var p=function(){i._paused=!1,i._seek=_,i._start=c,i._stop=f,i._loop=!(!i._loop&&!t._sprite[e][2])};if(_>=f)return void t._ended(i);var m=i._node;if(t._webAudio){var v=function(){t._playLock=!1,p(),t._refreshBuffer(i);var e=i._muted||t._muted?0:i._volume;m.gain.setValueAtTime(e,n.ctx.currentTime),i._playStart=n.ctx.currentTime,void 0===m.bufferSource.start?i._loop?m.bufferSource.noteGrainOn(0,_,86400):m.bufferSource.noteGrainOn(0,_,s):i._loop?m.bufferSource.start(0,_,86400):m.bufferSource.start(0,_,s),l!==1/0&&(t._endTimers[i._id]=setTimeout(t._ended.bind(t,i),l)),o||setTimeout(function(){t._emit("play",i._id),t._loadQueue()},0)};"running"===n.state&&"interrupted"!==n.ctx.state?v():(t._playLock=!0,t.once("resume",v),t._clearTimer(i._id))}else{var h=function(){m.currentTime=_,m.muted=i._muted||t._muted||n._muted||m.muted,m.volume=i._volume*n.volume(),m.playbackRate=i._rate;try{var r=m.play();if(r&&"undefined"!=typeof Promise&&(r instanceof Promise||"function"==typeof r.then)?(t._playLock=!0,p(),r.then(function(){t._playLock=!1,m._unlocked=!0,o||(t._emit("play",i._id),t._loadQueue())}).catch(function(){t._playLock=!1,t._emit("playerror",i._id,"Playback was unable to start. This is most commonly an issue on mobile devices and Chrome where playback was not within a user interaction."),i._ended=!0,i._paused=!0})):o||(t._playLock=!1,p(),t._emit("play",i._id),t._loadQueue()),m.playbackRate=i._rate,m.paused)return void t._emit("playerror",i._id,"Playback was unable to start. This is most commonly an issue on mobile devices and Chrome where playback was not within a user interaction.");"__default"!==e||i._loop?t._endTimers[i._id]=setTimeout(t._ended.bind(t,i),l):(t._endTimers[i._id]=function(){t._ended(i),m.removeEventListener("ended",t._endTimers[i._id],!1)},m.addEventListener("ended",t._endTimers[i._id],!1))}catch(e){t._emit("playerror",i._id,e)}};"data:audio/wav;base64,UklGRigAAABXQVZFZm10IBIAAAABAAEARKwAAIhYAQACABAAAABkYXRhAgAAAAEA"===m.src&&(m.src=t._src,m.load());var y=window&&window.ejecta||!m.readyState&&n._navigator.isCocoonJS;if(m.readyState>=3||y)h();else{t._playLock=!0;var g=function(){h(),m.removeEventListener(n._canPlayEvent,g,!1)};m.addEventListener(n._canPlayEvent,g,!1),t._clearTimer(i._id)}}return i._id},pause:function(e){var n=this;if("loaded"!==n._state||n._playLock)return n._queue.push({event:"pause",action:function(){n.pause(e)}}),n;for(var o=n._getSoundIds(e),t=0;t<o.length;t++){n._clearTimer(o[t]);var r=n._soundById(o[t]);if(r&&!r._paused&&(r._seek=n.seek(o[t]),r._rateSeek=0,r._paused=!0,n._stopFade(o[t]),r._node))if(n._webAudio){if(!r._node.bufferSource)continue;void 0===r._node.bufferSource.stop?r._node.bufferSource.noteOff(0):r._node.bufferSource.stop(0),n._cleanBuffer(r._node)}else isNaN(r._node.duration)&&r._node.duration!==1/0||r._node.pause();arguments[1]||n._emit("pause",r?r._id:null)}return n},stop:function(e,n){var o=this;if("loaded"!==o._state||o._playLock)return o._queue.push({event:"stop",action:function(){o.stop(e)}}),o;for(var t=o._getSoundIds(e),r=0;r<t.length;r++){o._clearTimer(t[r]);var a=o._soundById(t[r]);a&&(a._seek=a._start||0,a._rateSeek=0,a._paused=!0,a._ended=!0,o._stopFade(t[r]),a._node&&(o._webAudio?a._node.bufferSource&&(void 0===a._node.bufferSource.stop?a._node.bufferSource.noteOff(0):a._node.bufferSource.stop(0),o._cleanBuffer(a._node)):isNaN(a._node.duration)&&a._node.duration!==1/0||(a._node.currentTime=a._start||0,a._node.pause(),a._node.duration===1/0&&o._clearSound(a._node))),n||o._emit("stop",a._id))}return o},mute:function(e,o){var t=this;if("loaded"!==t._state||t._playLock)return t._queue.push({event:"mute",action:function(){t.mute(e,o)}}),t;if(void 0===o){if("boolean"!=typeof e)return t._muted;t._muted=e}for(var r=t._getSoundIds(o),a=0;a<r.length;a++){var u=t._soundById(r[a]);u&&(u._muted=e,u._interval&&t._stopFade(u._id),t._webAudio&&u._node?u._node.gain.setValueAtTime(e?0:u._volume,n.ctx.currentTime):u._node&&(u._node.muted=!!n._muted||e),t._emit("mute",u._id))}return t},volume:function(){var e,o,t=this,r=arguments;if(0===r.length)return t._volume;if(1===r.length||2===r.length&&void 0===r[1]){t._getSoundIds().indexOf(r[0])>=0?o=parseInt(r[0],10):e=parseFloat(r[0])}else r.length>=2&&(e=parseFloat(r[0]),o=parseInt(r[1],10));var a;if(!(void 0!==e&&e>=0&&e<=1))return a=o?t._soundById(o):t._sounds[0],a?a._volume:0;if("loaded"!==t._state||t._playLock)return t._queue.push({event:"volume",action:function(){t.volume.apply(t,r)}}),t;void 0===o&&(t._volume=e),o=t._getSoundIds(o);for(var u=0;u<o.length;u++)(a=t._soundById(o[u]))&&(a._volume=e,r[2]||t._stopFade(o[u]),t._webAudio&&a._node&&!a._muted?a._node.gain.setValueAtTime(e,n.ctx.currentTime):a._node&&!a._muted&&(a._node.volume=e*n.volume()),t._emit("volume",a._id));return t},fade:function(e,o,t,r){var a=this;if("loaded"!==a._state||a._playLock)return a._queue.push({event:"fade",action:function(){a.fade(e,o,t,r)}}),a;e=Math.min(Math.max(0,parseFloat(e)),1),o=Math.min(Math.max(0,parseFloat(o)),1),t=parseFloat(t),a.volume(e,r);for(var u=a._getSoundIds(r),i=0;i<u.length;i++){var d=a._soundById(u[i]);if(d){if(r||a._stopFade(u[i]),a._webAudio&&!d._muted){var _=n.ctx.currentTime,s=_+t/1e3;d._volume=e,d._node.gain.setValueAtTime(e,_),d._node.gain.linearRampToValueAtTime(o,s)}a._startFadeInterval(d,e,o,t,u[i],void 0===r)}}return a},_startFadeInterval:function(e,n,o,t,r,a){var u=this,i=n,d=o-n,_=Math.abs(d/.01),s=Math.max(4,_>0?t/_:t),l=Date.now();e._fadeTo=o,e._interval=setInterval(function(){var r=(Date.now()-l)/t;l=Date.now(),i+=d*r,i=d<0?Math.max(o,i):Math.min(o,i),i=Math.round(100*i)/100,u._webAudio?e._volume=i:u.volume(i,e._id,!0),a&&(u._volume=i),(o<n&&i<=o||o>n&&i>=o)&&(clearInterval(e._interval),e._interval=null,e._fadeTo=null,u.volume(o,e._id),u._emit("fade",e._id))},s)},_stopFade:function(e){var o=this,t=o._soundById(e);return t&&t._interval&&(o._webAudio&&t._node.gain.cancelScheduledValues(n.ctx.currentTime),clearInterval(t._interval),t._interval=null,o.volume(t._fadeTo,e),t._fadeTo=null,o._emit("fade",e)),o},loop:function(){var e,n,o,t=this,r=arguments;if(0===r.length)return t._loop;if(1===r.length){if("boolean"!=typeof r[0])return!!(o=t._soundById(parseInt(r[0],10)))&&o._loop;e=r[0],t._loop=e}else 2===r.length&&(e=r[0],n=parseInt(r[1],10));for(var a=t._getSoundIds(n),u=0;u<a.length;u++)(o=t._soundById(a[u]))&&(o._loop=e,t._webAudio&&o._node&&o._node.bufferSource&&(o._node.bufferSource.loop=e,e&&(o._node.bufferSource.loopStart=o._start||0,o._node.bufferSource.loopEnd=o._stop)));return t},rate:function(){var e,o,t=this,r=arguments;if(0===r.length)o=t._sounds[0]._id;else if(1===r.length){var a=t._getSoundIds(),u=a.indexOf(r[0]);u>=0?o=parseInt(r[0],10):e=parseFloat(r[0])}else 2===r.length&&(e=parseFloat(r[0]),o=parseInt(r[1],10));var i;if("number"!=typeof e)return i=t._soundById(o),i?i._rate:t._rate;if("loaded"!==t._state||t._playLock)return t._queue.push({event:"rate",action:function(){t.rate.apply(t,r)}}),t;void 0===o&&(t._rate=e),o=t._getSoundIds(o);for(var d=0;d<o.length;d++)if(i=t._soundById(o[d])){t.playing(o[d])&&(i._rateSeek=t.seek(o[d]),i._playStart=t._webAudio?n.ctx.currentTime:i._playStart),i._rate=e,t._webAudio&&i._node&&i._node.bufferSource?i._node.bufferSource.playbackRate.setValueAtTime(e,n.ctx.currentTime):i._node&&(i._node.playbackRate=e);var _=t.seek(o[d]),s=(t._sprite[i._sprite][0]+t._sprite[i._sprite][1])/1e3-_,l=1e3*s/Math.abs(i._rate);!t._endTimers[o[d]]&&i._paused||(t._clearTimer(o[d]),t._endTimers[o[d]]=setTimeout(t._ended.bind(t,i),l)),t._emit("rate",i._id)}return t},seek:function(){var e,o,t=this,r=arguments;if(0===r.length)o=t._sounds[0]._id;else if(1===r.length){var a=t._getSoundIds(),u=a.indexOf(r[0]);u>=0?o=parseInt(r[0],10):t._sounds.length&&(o=t._sounds[0]._id,e=parseFloat(r[0]))}else 2===r.length&&(e=parseFloat(r[0]),o=parseInt(r[1],10));if(void 0===o)return t;if("loaded"!==t._state||t._playLock)return t._queue.push({event:"seek",action:function(){t.seek.apply(t,r)}}),t;var i=t._soundById(o);if(i){if(!("number"==typeof e&&e>=0)){if(t._webAudio){var d=t.playing(o)?n.ctx.currentTime-i._playStart:0,_=i._rateSeek?i._rateSeek-i._seek:0;return i._seek+(_+d*Math.abs(i._rate))}return i._node.currentTime}var s=t.playing(o);s&&t.pause(o,!0),i._seek=e,i._ended=!1,t._clearTimer(o),t._webAudio||!i._node||isNaN(i._node.duration)||(i._node.currentTime=e);var l=function(){t._emit("seek",o),s&&t.play(o,!0)};if(s&&!t._webAudio){var c=function(){t._playLock?setTimeout(c,0):l()};setTimeout(c,0)}else l()}return t},playing:function(e){var n=this;if("number"==typeof e){var o=n._soundById(e);return!!o&&!o._paused}for(var t=0;t<n._sounds.length;t++)if(!n._sounds[t]._paused)return!0;return!1},duration:function(e){var n=this,o=n._duration,t=n._soundById(e);return t&&(o=n._sprite[t._sprite][1]/1e3),o},state:function(){return this._state},unload:function(){for(var e=this,o=e._sounds,t=0;t<o.length;t++)o[t]._paused||e.stop(o[t]._id),e._webAudio||(e._clearSound(o[t]._node),o[t]._node.removeEventListener("error",o[t]._errorFn,!1),o[t]._node.removeEventListener(n._canPlayEvent,o[t]._loadFn,!1),n._releaseHtml5Audio(o[t]._node)),delete o[t]._node,e._clearTimer(o[t]._id);var a=n._howls.indexOf(e);a>=0&&n._howls.splice(a,1);var u=!0;for(t=0;t<n._howls.length;t++)if(n._howls[t]._src===e._src||e._src.indexOf(n._howls[t]._src)>=0){u=!1;break}return r&&u&&delete r[e._src],n.noAudio=!1,e._state="unloaded",e._sounds=[],e=null,null},on:function(e,n,o,t){var r=this,a=r["_on"+e];return"function"==typeof n&&a.push(t?{id:o,fn:n,once:t}:{id:o,fn:n}),r},off:function(e,n,o){var t=this,r=t["_on"+e],a=0;if("number"==typeof n&&(o=n,n=null),n||o)for(a=0;a<r.length;a++){var u=o===r[a].id;if(n===r[a].fn&&u||!n&&u){r.splice(a,1);break}}else if(e)t["_on"+e]=[];else{var i=Object.keys(t);for(a=0;a<i.length;a++)0===i[a].indexOf("_on")&&Array.isArray(t[i[a]])&&(t[i[a]]=[])}return t},once:function(e,n,o){var t=this;return t.on(e,n,o,1),t},_emit:function(e,n,o){for(var t=this,r=t["_on"+e],a=r.length-1;a>=0;a--)r[a].id&&r[a].id!==n&&"load"!==e||(setTimeout(function(e){e.call(this,n,o)}.bind(t,r[a].fn),0),r[a].once&&t.off(e,r[a].fn,r[a].id));return t._loadQueue(e),t},_loadQueue:function(e){var n=this;if(n._queue.length>0){var o=n._queue[0];o.event===e&&(n._queue.shift(),n._loadQueue()),e||o.action()}return n},_ended:function(e){var o=this,t=e._sprite;if(!o._webAudio&&e._node&&!e._node.paused&&!e._node.ended&&e._node.currentTime<e._stop)return setTimeout(o._ended.bind(o,e),100),o;var r=!(!e._loop&&!o._sprite[t][2]);if(o._emit("end",e._id),!o._webAudio&&r&&o.stop(e._id,!0).play(e._id),o._webAudio&&r){o._emit("play",e._id),e._seek=e._start||0,e._rateSeek=0,e._playStart=n.ctx.currentTime;var a=1e3*(e._stop-e._start)/Math.abs(e._rate);o._endTimers[e._id]=setTimeout(o._ended.bind(o,e),a)}return o._webAudio&&!r&&(e._paused=!0,e._ended=!0,e._seek=e._start||0,e._rateSeek=0,o._clearTimer(e._id),o._cleanBuffer(e._node),n._autoSuspend()),o._webAudio||r||o.stop(e._id,!0),o},_clearTimer:function(e){var n=this;if(n._endTimers[e]){if("function"!=typeof n._endTimers[e])clearTimeout(n._endTimers[e]);else{var o=n._soundById(e);o&&o._node&&o._node.removeEventListener("ended",n._endTimers[e],!1)}delete n._endTimers[e]}return n},_soundById:function(e){for(var n=this,o=0;o<n._sounds.length;o++)if(e===n._sounds[o]._id)return n._sounds[o];return null},_inactiveSound:function(){var e=this;e._drain();for(var n=0;n<e._sounds.length;n++)if(e._sounds[n]._ended)return e._sounds[n].reset();return new t(e)},_drain:function(){var e=this,n=e._pool,o=0,t=0;if(!(e._sounds.length<n)){for(t=0;t<e._sounds.length;t++)e._sounds[t]._ended&&o++;for(t=e._sounds.length-1;t>=0;t--){if(o<=n)return;e._sounds[t]._ended&&(e._webAudio&&e._sounds[t]._node&&e._sounds[t]._node.disconnect(0),e._sounds.splice(t,1),o--)}}},_getSoundIds:function(e){var n=this;if(void 0===e){for(var o=[],t=0;t<n._sounds.length;t++)o.push(n._sounds[t]._id);return o}return[e]},_refreshBuffer:function(e){var o=this;return e._node.bufferSource=n.ctx.createBufferSource(),e._node.bufferSource.buffer=r[o._src],e._panner?e._node.bufferSource.connect(e._panner):e._node.bufferSource.connect(e._node),e._node.bufferSource.loop=e._loop,e._loop&&(e._node.bufferSource.loopStart=e._start||0,e._node.bufferSource.loopEnd=e._stop||0),e._node.bufferSource.playbackRate.setValueAtTime(e._rate,n.ctx.currentTime),o},_cleanBuffer:function(e){var o=this,t=n._navigator&&n._navigator.vendor.indexOf("Apple")>=0;if(n._scratchBuffer&&e.bufferSource&&(e.bufferSource.onended=null,e.bufferSource.disconnect(0),t))try{e.bufferSource.buffer=n._scratchBuffer}catch(e){}return e.bufferSource=null,o},_clearSound:function(e){/MSIE |Trident\//.test(n._navigator&&n._navigator.userAgent)||(e.src="data:audio/wav;base64,UklGRigAAABXQVZFZm10IBIAAAABAAEARKwAAIhYAQACABAAAABkYXRhAgAAAAEA")}};var t=function(e){this._parent=e,this.init()};t.prototype={init:function(){var e=this,o=e._parent;return e._muted=o._muted,e._loop=o._loop,e._volume=o._volume,e._rate=o._rate,e._seek=0,e._paused=!0,e._ended=!0,e._sprite="__default",e._id=++n._counter,o._sounds.push(e),e.create(),e},create:function(){var e=this,o=e._parent,t=n._muted||e._muted||e._parent._muted?0:e._volume;return o._webAudio?(e._node=void 0===n.ctx.createGain?n.ctx.createGainNode():n.ctx.createGain(),e._node.gain.setValueAtTime(t,n.ctx.currentTime),e._node.paused=!0,e._node.connect(n.masterGain)):n.noAudio||(e._node=n._obtainHtml5Audio(),e._errorFn=e._errorListener.bind(e),e._node.addEventListener("error",e._errorFn,!1),e._loadFn=e._loadListener.bind(e),e._node.addEventListener(n._canPlayEvent,e._loadFn,!1),e._node.src=o._src,e._node.preload=!0===o._preload?"auto":o._preload,e._node.volume=t*n.volume(),e._node.load()),e},reset:function(){var e=this,o=e._parent;return e._muted=o._muted,e._loop=o._loop,e._volume=o._volume,e._rate=o._rate,e._seek=0,e._rateSeek=0,e._paused=!0,e._ended=!0,e._sprite="__default",e._id=++n._counter,e},_errorListener:function(){var e=this;e._parent._emit("loaderror",e._id,e._node.error?e._node.error.code:0),e._node.removeEventListener("error",e._errorFn,!1)},_loadListener:function(){var e=this,o=e._parent;o._duration=Math.ceil(10*e._node.duration)/10,0===Object.keys(o._sprite).length&&(o._sprite={__default:[0,1e3*o._duration]}),"loaded"!==o._state&&(o._state="loaded",o._emit("load"),o._loadQueue()),e._node.removeEventListener(n._canPlayEvent,e._loadFn,!1)}};var r={},a=function(e){var n=e._src;if(r[n])return e._duration=r[n].duration,void d(e);if(/^data:[^;]+;base64,/.test(n)){for(var o=atob(n.split(",")[1]),t=new Uint8Array(o.length),a=0;a<o.length;++a)t[a]=o.charCodeAt(a);i(t.buffer,e)}else{var _=new XMLHttpRequest;_.open(e._xhr.method,n,!0),_.withCredentials=e._xhr.withCredentials,_.responseType="arraybuffer",e._xhr.headers&&Object.keys(e._xhr.headers).forEach(function(n){_.setRequestHeader(n,e._xhr.headers[n])}),_.onload=function(){var n=(_.status+"")[0];if("0"!==n&&"2"!==n&&"3"!==n)return void e._emit("loaderror",null,"Failed loading audio file with status: "+_.status+".");i(_.response,e)},_.onerror=function(){e._webAudio&&(e._html5=!0,e._webAudio=!1,e._sounds=[],delete r[n],e.load())},u(_)}},u=function(e){try{e.send()}catch(n){e.onerror()}},i=function(e,o){var t=function(){o._emit("loaderror",null,"Decoding audio data failed.")},a=function(e){e&&o._sounds.length>0?(r[o._src]=e,d(o,e)):t()};"undefined"!=typeof Promise&&1===n.ctx.decodeAudioData.length?n.ctx.decodeAudioData(e).then(a).catch(t):n.ctx.decodeAudioData(e,a,t)},d=function(e,n){n&&!e._duration&&(e._duration=n.duration),0===Object.keys(e._sprite).length&&(e._sprite={__default:[0,1e3*e._duration]}),"loaded"!==e._state&&(e._state="loaded",e._emit("load"),e._loadQueue())},_=function(){if(n.usingWebAudio){try{"undefined"!=typeof AudioContext?n.ctx=new AudioContext:"undefined"!=typeof webkitAudioContext?n.ctx=new webkitAudioContext:n.usingWebAudio=!1}catch(e){n.usingWebAudio=!1}n.ctx||(n.usingWebAudio=!1);var e=/iP(hone|od|ad)/.test(n._navigator&&n._navigator.platform),o=n._navigator&&n._navigator.appVersion.match(/OS (\d+)_(\d+)_?(\d+)?/),t=o?parseInt(o[1],10):null;if(e&&t&&t<9){var r=/safari/.test(n._navigator&&n._navigator.userAgent.toLowerCase());n._navigator&&!r&&(n.usingWebAudio=!1)}n.usingWebAudio&&(n.masterGain=void 0===n.ctx.createGain?n.ctx.createGainNode():n.ctx.createGain(),n.masterGain.gain.setValueAtTime(n._muted?0:n._volume,n.ctx.currentTime),n.masterGain.connect(n.ctx.destination)),n._setup()}};"function"==typeof define&&define.amd&&define([],function(){return{Howler:n,Howl:o}}),"undefined"!=typeof exports&&(exports.Howler=n,exports.Howl=o),"undefined"!=typeof global?(global.HowlerGlobal=e,global.Howler=n,global.Howl=o,global.Sound=t):"undefined"!=typeof window&&(window.HowlerGlobal=e,window.Howler=n,window.Howl=o,window.Sound=t)}();
+/*! Spatial Plugin */
+!function(){"use strict";HowlerGlobal.prototype._pos=[0,0,0],HowlerGlobal.prototype._orientation=[0,0,-1,0,1,0],HowlerGlobal.prototype.stereo=function(e){var n=this;if(!n.ctx||!n.ctx.listener)return n;for(var t=n._howls.length-1;t>=0;t--)n._howls[t].stereo(e);return n},HowlerGlobal.prototype.pos=function(e,n,t){var r=this;return r.ctx&&r.ctx.listener?(n="number"!=typeof n?r._pos[1]:n,t="number"!=typeof t?r._pos[2]:t,"number"!=typeof e?r._pos:(r._pos=[e,n,t],void 0!==r.ctx.listener.positionX?(r.ctx.listener.positionX.setTargetAtTime(r._pos[0],Howler.ctx.currentTime,.1),r.ctx.listener.positionY.setTargetAtTime(r._pos[1],Howler.ctx.currentTime,.1),r.ctx.listener.positionZ.setTargetAtTime(r._pos[2],Howler.ctx.currentTime,.1)):r.ctx.listener.setPosition(r._pos[0],r._pos[1],r._pos[2]),r)):r},HowlerGlobal.prototype.orientation=function(e,n,t,r,o,i){var a=this;if(!a.ctx||!a.ctx.listener)return a;var s=a._orientation;return n="number"!=typeof n?s[1]:n,t="number"!=typeof t?s[2]:t,r="number"!=typeof r?s[3]:r,o="number"!=typeof o?s[4]:o,i="number"!=typeof i?s[5]:i,"number"!=typeof e?s:(a._orientation=[e,n,t,r,o,i],void 0!==a.ctx.listener.forwardX?(a.ctx.listener.forwardX.setTargetAtTime(e,Howler.ctx.currentTime,.1),a.ctx.listener.forwardY.setTargetAtTime(n,Howler.ctx.currentTime,.1),a.ctx.listener.forwardZ.setTargetAtTime(t,Howler.ctx.currentTime,.1),a.ctx.listener.upX.setTargetAtTime(r,Howler.ctx.currentTime,.1),a.ctx.listener.upY.setTargetAtTime(o,Howler.ctx.currentTime,.1),a.ctx.listener.upZ.setTargetAtTime(i,Howler.ctx.currentTime,.1)):a.ctx.listener.setOrientation(e,n,t,r,o,i),a)},Howl.prototype.init=function(e){return function(n){var t=this;return t._orientation=n.orientation||[1,0,0],t._stereo=n.stereo||null,t._pos=n.pos||null,t._pannerAttr={coneInnerAngle:void 0!==n.coneInnerAngle?n.coneInnerAngle:360,coneOuterAngle:void 0!==n.coneOuterAngle?n.coneOuterAngle:360,coneOuterGain:void 0!==n.coneOuterGain?n.coneOuterGain:0,distanceModel:void 0!==n.distanceModel?n.distanceModel:"inverse",maxDistance:void 0!==n.maxDistance?n.maxDistance:1e4,panningModel:void 0!==n.panningModel?n.panningModel:"HRTF",refDistance:void 0!==n.refDistance?n.refDistance:1,rolloffFactor:void 0!==n.rolloffFactor?n.rolloffFactor:1},t._onstereo=n.onstereo?[{fn:n.onstereo}]:[],t._onpos=n.onpos?[{fn:n.onpos}]:[],t._onorientation=n.onorientation?[{fn:n.onorientation}]:[],e.call(this,n)}}(Howl.prototype.init),Howl.prototype.stereo=function(n,t){var r=this;if(!r._webAudio)return r;if("loaded"!==r._state)return r._queue.push({event:"stereo",action:function(){r.stereo(n,t)}}),r;var o=void 0===Howler.ctx.createStereoPanner?"spatial":"stereo";if(void 0===t){if("number"!=typeof n)return r._stereo;r._stereo=n,r._pos=[n,0,0]}for(var i=r._getSoundIds(t),a=0;a<i.length;a++){var s=r._soundById(i[a]);if(s){if("number"!=typeof n)return s._stereo;s._stereo=n,s._pos=[n,0,0],s._node&&(s._pannerAttr.panningModel="equalpower",s._panner&&s._panner.pan||e(s,o),"spatial"===o?void 0!==s._panner.positionX?(s._panner.positionX.setValueAtTime(n,Howler.ctx.currentTime),s._panner.positionY.setValueAtTime(0,Howler.ctx.currentTime),s._panner.positionZ.setValueAtTime(0,Howler.ctx.currentTime)):s._panner.setPosition(n,0,0):s._panner.pan.setValueAtTime(n,Howler.ctx.currentTime)),r._emit("stereo",s._id)}}return r},Howl.prototype.pos=function(n,t,r,o){var i=this;if(!i._webAudio)return i;if("loaded"!==i._state)return i._queue.push({event:"pos",action:function(){i.pos(n,t,r,o)}}),i;if(t="number"!=typeof t?0:t,r="number"!=typeof r?-.5:r,void 0===o){if("number"!=typeof n)return i._pos;i._pos=[n,t,r]}for(var a=i._getSoundIds(o),s=0;s<a.length;s++){var p=i._soundById(a[s]);if(p){if("number"!=typeof n)return p._pos;p._pos=[n,t,r],p._node&&(p._panner&&!p._panner.pan||e(p,"spatial"),void 0!==p._panner.positionX?(p._panner.positionX.setValueAtTime(n,Howler.ctx.currentTime),p._panner.positionY.setValueAtTime(t,Howler.ctx.currentTime),p._panner.positionZ.setValueAtTime(r,Howler.ctx.currentTime)):p._panner.setPosition(n,t,r)),i._emit("pos",p._id)}}return i},Howl.prototype.orientation=function(n,t,r,o){var i=this;if(!i._webAudio)return i;if("loaded"!==i._state)return i._queue.push({event:"orientation",action:function(){i.orientation(n,t,r,o)}}),i;if(t="number"!=typeof t?i._orientation[1]:t,r="number"!=typeof r?i._orientation[2]:r,void 0===o){if("number"!=typeof n)return i._orientation;i._orientation=[n,t,r]}for(var a=i._getSoundIds(o),s=0;s<a.length;s++){var p=i._soundById(a[s]);if(p){if("number"!=typeof n)return p._orientation;p._orientation=[n,t,r],p._node&&(p._panner||(p._pos||(p._pos=i._pos||[0,0,-.5]),e(p,"spatial")),void 0!==p._panner.orientationX?(p._panner.orientationX.setValueAtTime(n,Howler.ctx.currentTime),p._panner.orientationY.setValueAtTime(t,Howler.ctx.currentTime),p._panner.orientationZ.setValueAtTime(r,Howler.ctx.currentTime)):p._panner.setOrientation(n,t,r)),i._emit("orientation",p._id)}}return i},Howl.prototype.pannerAttr=function(){var n,t,r,o=this,i=arguments;if(!o._webAudio)return o;if(0===i.length)return o._pannerAttr;if(1===i.length){if("object"!=typeof i[0])return r=o._soundById(parseInt(i[0],10)),r?r._pannerAttr:o._pannerAttr;n=i[0],void 0===t&&(n.pannerAttr||(n.pannerAttr={coneInnerAngle:n.coneInnerAngle,coneOuterAngle:n.coneOuterAngle,coneOuterGain:n.coneOuterGain,distanceModel:n.distanceModel,maxDistance:n.maxDistance,refDistance:n.refDistance,rolloffFactor:n.rolloffFactor,panningModel:n.panningModel}),o._pannerAttr={coneInnerAngle:void 0!==n.pannerAttr.coneInnerAngle?n.pannerAttr.coneInnerAngle:o._coneInnerAngle,coneOuterAngle:void 0!==n.pannerAttr.coneOuterAngle?n.pannerAttr.coneOuterAngle:o._coneOuterAngle,coneOuterGain:void 0!==n.pannerAttr.coneOuterGain?n.pannerAttr.coneOuterGain:o._coneOuterGain,distanceModel:void 0!==n.pannerAttr.distanceModel?n.pannerAttr.distanceModel:o._distanceModel,maxDistance:void 0!==n.pannerAttr.maxDistance?n.pannerAttr.maxDistance:o._maxDistance,refDistance:void 0!==n.pannerAttr.refDistance?n.pannerAttr.refDistance:o._refDistance,rolloffFactor:void 0!==n.pannerAttr.rolloffFactor?n.pannerAttr.rolloffFactor:o._rolloffFactor,panningModel:void 0!==n.pannerAttr.panningModel?n.pannerAttr.panningModel:o._panningModel})}else 2===i.length&&(n=i[0],t=parseInt(i[1],10));for(var a=o._getSoundIds(t),s=0;s<a.length;s++)if(r=o._soundById(a[s])){var p=r._pannerAttr;p={coneInnerAngle:void 0!==n.coneInnerAngle?n.coneInnerAngle:p.coneInnerAngle,coneOuterAngle:void 0!==n.coneOuterAngle?n.coneOuterAngle:p.coneOuterAngle,coneOuterGain:void 0!==n.coneOuterGain?n.coneOuterGain:p.coneOuterGain,distanceModel:void 0!==n.distanceModel?n.distanceModel:p.distanceModel,maxDistance:void 0!==n.maxDistance?n.maxDistance:p.maxDistance,refDistance:void 0!==n.refDistance?n.refDistance:p.refDistance,rolloffFactor:void 0!==n.rolloffFactor?n.rolloffFactor:p.rolloffFactor,panningModel:void 0!==n.panningModel?n.panningModel:p.panningModel};var c=r._panner;c?(c.coneInnerAngle=p.coneInnerAngle,c.coneOuterAngle=p.coneOuterAngle,c.coneOuterGain=p.coneOuterGain,c.distanceModel=p.distanceModel,c.maxDistance=p.maxDistance,c.refDistance=p.refDistance,c.rolloffFactor=p.rolloffFactor,c.panningModel=p.panningModel):(r._pos||(r._pos=o._pos||[0,0,-.5]),e(r,"spatial"))}return o},Sound.prototype.init=function(e){return function(){var n=this,t=n._parent;n._orientation=t._orientation,n._stereo=t._stereo,n._pos=t._pos,n._pannerAttr=t._pannerAttr,e.call(this),n._stereo?t.stereo(n._stereo):n._pos&&t.pos(n._pos[0],n._pos[1],n._pos[2],n._id)}}(Sound.prototype.init),Sound.prototype.reset=function(e){return function(){var n=this,t=n._parent;return n._orientation=t._orientation,n._stereo=t._stereo,n._pos=t._pos,n._pannerAttr=t._pannerAttr,n._stereo?t.stereo(n._stereo):n._pos?t.pos(n._pos[0],n._pos[1],n._pos[2],n._id):n._panner&&(n._panner.disconnect(0),n._panner=void 0,t._refreshBuffer(n)),e.call(this)}}(Sound.prototype.reset);var 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\ No newline at end of file

libs/matter.min.js

+/*!
+ * matter-js 0.17.0 by @liabru
+ * http://brm.io/matter-js/
+ * License MIT
+ */
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e.isStatic})):e.bodies.length=0,e.constraints.length=0,e.composites.length=0,i.setModified(e,!0,!0,!1),e},i.allBodies=function(e){for(var t=[].concat(e.bodies),n=0;n<e.composites.length;n++)t=t.concat(i.allBodies(e.composites[n]));return t},i.allConstraints=function(e){for(var t=[].concat(e.constraints),n=0;n<e.composites.length;n++)t=t.concat(i.allConstraints(e.composites[n]));return t},i.allComposites=function(e){for(var t=[].concat(e.composites),n=0;n<e.composites.length;n++)t=t.concat(i.allComposites(e.composites[n]));return t},i.get=function(e,t,n){var o,r;switch(n){case"body":o=i.allBodies(e);break;case"constraint":o=i.allConstraints(e);break;case"composite":o=i.allComposites(e).concat(e)}return o?0===(r=o.filter((function(e){return e.id.toString()===t.toString()}))).length?null:r[0]:null},i.move=function(e,t,n){return i.remove(e,t),i.add(n,t),e},i.rebase=function(e){for(var t=i.allBodies(e).concat(i.allConstraints(e)).concat(i.allComposites(e)),n=0;n<t.length;n++)t[n].id=r.nextId();return i.setModified(e,!0,!0,!1),e},i.translate=function(e,t,n){for(var o=n?i.allBodies(e):e.bodies,r=0;r<o.length;r++)s.translate(o[r],t);return i.setModified(e,!0,!0,!1),e},i.rotate=function(e,t,n,o){for(var r=Math.cos(t),a=Math.sin(t),l=o?i.allBodies(e):e.bodies,c=0;c<l.length;c++){var u=l[c],d=u.position.x-n.x,p=u.position.y-n.y;s.setPosition(u,{x:n.x+(d*r-p*a),y:n.y+(d*a+p*r)}),s.rotate(u,t)}return i.setModified(e,!0,!0,!1),e},i.scale=function(e,t,n,o,r){for(var a=r?i.allBodies(e):e.bodies,l=0;l<a.length;l++){var c=a[l],u=c.position.x-o.x,d=c.position.y-o.y;s.setPosition(c,{x:o.x+u*t,y:o.y+d*n}),s.scale(c,t,n)}return i.setModified(e,!0,!0,!1),e},i.bounds=function(e){for(var t=i.allBodies(e),n=[],o=0;o<t.length;o+=1){var r=t[o];n.push(r.bounds.min,r.bounds.max)}return a.create(n)}},function(e,t,n){var i={};e.exports=i;var o=n(3),r=n(2),a=n(7),s=(n(16),n(0)),l=n(1),c=n(10);!function(){i._inertiaScale=4,i._nextCollidingGroupId=1,i._nextNonCollidingGroupId=-1,i._nextCategory=1,i.create=function(t){var n={id:s.nextId(),type:"body",label:"Body",parts:[],plugin:{},angle:0,vertices:o.fromPath("L 0 0 L 40 0 L 40 40 L 0 40"),position:{x:0,y:0},force:{x:0,y:0},torque:0,positionImpulse:{x:0,y:0},constraintImpulse:{x:0,y:0,angle:0},totalContacts:0,speed:0,angularSpeed:0,velocity:{x:0,y:0},angularVelocity:0,isSensor:!1,isStatic:!1,isSleeping:!1,motion:0,sleepThreshold:60,density:.001,restitution:0,friction:.1,frictionStatic:.5,frictionAir:.01,collisionFilter:{category:1,mask:4294967295,group:0},slop:.05,timeScale:1,render:{visible:!0,opacity:1,strokeStyle:null,fillStyle:null,lineWidth:null,sprite:{xScale:1,yScale:1,xOffset:0,yOffset:0}},events:null,bounds:null,chamfer:null,circleRadius:0,positionPrev:null,anglePrev:0,parent:null,axes:null,area:0,mass:0,inertia:0,_original:null},i=s.extend(n,t);return e(i,t),i},i.nextGroup=function(e){return e?i._nextNonCollidingGroupId--:i._nextCollidingGroupId++},i.nextCategory=function(){return i._nextCategory=i._nextCategory<<1,i._nextCategory};var e=function(e,t){t=t||{},i.set(e,{bounds:e.bounds||l.create(e.vertices),positionPrev:e.positionPrev||r.clone(e.position),anglePrev:e.anglePrev||e.angle,vertices:e.vertices,parts:e.parts||[e],isStatic:e.isStatic,isSleeping:e.isSleeping,parent:e.parent||e}),o.rotate(e.vertices,e.angle,e.position),c.rotate(e.axes,e.angle),l.update(e.bounds,e.vertices,e.velocity),i.set(e,{axes:t.axes||e.axes,area:t.area||e.area,mass:t.mass||e.mass,inertia:t.inertia||e.inertia});var n=e.isStatic?"#14151f":s.choose(["#f19648","#f5d259","#f55a3c","#063e7b","#ececd1"]),a=e.isStatic?"#555":"#ccc",u=e.isStatic&&null===e.render.fillStyle?1:0;e.render.fillStyle=e.render.fillStyle||n,e.render.strokeStyle=e.render.strokeStyle||a,e.render.lineWidth=e.render.lineWidth||u,e.render.sprite.xOffset+=-(e.bounds.min.x-e.position.x)/(e.bounds.max.x-e.bounds.min.x),e.render.sprite.yOffset+=-(e.bounds.min.y-e.position.y)/(e.bounds.max.y-e.bounds.min.y)};i.set=function(e,t,n){var o;for(o in"string"==typeof t&&(o=t,(t={})[o]=n),t)if(Object.prototype.hasOwnProperty.call(t,o))switch(n=t[o],o){case"isStatic":i.setStatic(e,n);break;case"isSleeping":a.set(e,n);break;case"mass":i.setMass(e,n);break;case"density":i.setDensity(e,n);break;case"inertia":i.setInertia(e,n);break;case"vertices":i.setVertices(e,n);break;case"position":i.setPosition(e,n);break;case"angle":i.setAngle(e,n);break;case"velocity":i.setVelocity(e,n);break;case"angularVelocity":i.setAngularVelocity(e,n);break;case"parts":i.setParts(e,n);break;case"centre":i.setCentre(e,n);break;default:e[o]=n}},i.setStatic=function(e,t){for(var n=0;n<e.parts.length;n++){var i=e.parts[n];i.isStatic=t,t?(i._original={restitution:i.restitution,friction:i.friction,mass:i.mass,inertia:i.inertia,density:i.density,inverseMass:i.inverseMass,inverseInertia:i.inverseInertia},i.restitution=0,i.friction=1,i.mass=i.inertia=i.density=1/0,i.inverseMass=i.inverseInertia=0,i.positionPrev.x=i.position.x,i.positionPrev.y=i.position.y,i.anglePrev=i.angle,i.angularVelocity=0,i.speed=0,i.angularSpeed=0,i.motion=0):i._original&&(i.restitution=i._original.restitution,i.friction=i._original.friction,i.mass=i._original.mass,i.inertia=i._original.inertia,i.density=i._original.density,i.inverseMass=i._original.inverseMass,i.inverseInertia=i._original.inverseInertia,i._original=null)}},i.setMass=function(e,t){var n=e.inertia/(e.mass/6);e.inertia=n*(t/6),e.inverseInertia=1/e.inertia,e.mass=t,e.inverseMass=1/e.mass,e.density=e.mass/e.area},i.setDensity=function(e,t){i.setMass(e,t*e.area),e.density=t},i.setInertia=function(e,t){e.inertia=t,e.inverseInertia=1/e.inertia},i.setVertices=function(e,t){t[0].body===e?e.vertices=t:e.vertices=o.create(t,e),e.axes=c.fromVertices(e.vertices),e.area=o.area(e.vertices),i.setMass(e,e.density*e.area);var n=o.centre(e.vertices);o.translate(e.vertices,n,-1),i.setInertia(e,i._inertiaScale*o.inertia(e.vertices,e.mass)),o.translate(e.vertices,e.position),l.update(e.bounds,e.vertices,e.velocity)},i.setParts=function(e,t,n){var r;for(t=t.slice(0),e.parts.length=0,e.parts.push(e),e.parent=e,r=0;r<t.length;r++){var a=t[r];a!==e&&(a.parent=e,e.parts.push(a))}if(1!==e.parts.length){if(n=void 0===n||n){var s=[];for(r=0;r<t.length;r++)s=s.concat(t[r].vertices);o.clockwiseSort(s);var l=o.hull(s),c=o.centre(l);i.setVertices(e,l),o.translate(e.vertices,c)}var u=i._totalProperties(e);e.area=u.area,e.parent=e,e.position.x=u.centre.x,e.position.y=u.centre.y,e.positionPrev.x=u.centre.x,e.positionPrev.y=u.centre.y,i.setMass(e,u.mass),i.setInertia(e,u.inertia),i.setPosition(e,u.centre)}},i.setCentre=function(e,t,n){n?(e.positionPrev.x+=t.x,e.positionPrev.y+=t.y,e.position.x+=t.x,e.position.y+=t.y):(e.positionPrev.x=t.x-(e.position.x-e.positionPrev.x),e.positionPrev.y=t.y-(e.position.y-e.positionPrev.y),e.position.x=t.x,e.position.y=t.y)},i.setPosition=function(e,t){var n=r.sub(t,e.position);e.positionPrev.x+=n.x,e.positionPrev.y+=n.y;for(var i=0;i<e.parts.length;i++){var a=e.parts[i];a.position.x+=n.x,a.position.y+=n.y,o.translate(a.vertices,n),l.update(a.bounds,a.vertices,e.velocity)}},i.setAngle=function(e,t){var n=t-e.angle;e.anglePrev+=n;for(var i=0;i<e.parts.length;i++){var a=e.parts[i];a.angle+=n,o.rotate(a.vertices,n,e.position),c.rotate(a.axes,n),l.update(a.bounds,a.vertices,e.velocity),i>0&&r.rotateAbout(a.position,n,e.position,a.position)}},i.setVelocity=function(e,t){e.positionPrev.x=e.position.x-t.x,e.positionPrev.y=e.position.y-t.y,e.velocity.x=t.x,e.velocity.y=t.y,e.speed=r.magnitude(e.velocity)},i.setAngularVelocity=function(e,t){e.anglePrev=e.angle-t,e.angularVelocity=t,e.angularSpeed=Math.abs(e.angularVelocity)},i.translate=function(e,t){i.setPosition(e,r.add(e.position,t))},i.rotate=function(e,t,n){if(n){var o=Math.cos(t),r=Math.sin(t),a=e.position.x-n.x,s=e.position.y-n.y;i.setPosition(e,{x:n.x+(a*o-s*r),y:n.y+(a*r+s*o)}),i.setAngle(e,e.angle+t)}else i.setAngle(e,e.angle+t)},i.scale=function(e,t,n,r){var a=0,s=0;r=r||e.position;for(var u=0;u<e.parts.length;u++){var d=e.parts[u];o.scale(d.vertices,t,n,r),d.axes=c.fromVertices(d.vertices),d.area=o.area(d.vertices),i.setMass(d,e.density*d.area),o.translate(d.vertices,{x:-d.position.x,y:-d.position.y}),i.setInertia(d,i._inertiaScale*o.inertia(d.vertices,d.mass)),o.translate(d.vertices,{x:d.position.x,y:d.position.y}),u>0&&(a+=d.area,s+=d.inertia),d.position.x=r.x+(d.position.x-r.x)*t,d.position.y=r.y+(d.position.y-r.y)*n,l.update(d.bounds,d.vertices,e.velocity)}e.parts.length>1&&(e.area=a,e.isStatic||(i.setMass(e,e.density*a),i.setInertia(e,s))),e.circleRadius&&(t===n?e.circleRadius*=t:e.circleRadius=null)},i.update=function(e,t,n,i){var a=Math.pow(t*n*e.timeScale,2),s=1-e.frictionAir*n*e.timeScale,u=e.position.x-e.positionPrev.x,d=e.position.y-e.positionPrev.y;e.velocity.x=u*s*i+e.force.x/e.mass*a,e.velocity.y=d*s*i+e.force.y/e.mass*a,e.positionPrev.x=e.position.x,e.positionPrev.y=e.position.y,e.position.x+=e.velocity.x,e.position.y+=e.velocity.y,e.angularVelocity=(e.angle-e.anglePrev)*s*i+e.torque/e.inertia*a,e.anglePrev=e.angle,e.angle+=e.angularVelocity,e.speed=r.magnitude(e.velocity),e.angularSpeed=Math.abs(e.angularVelocity);for(var p=0;p<e.parts.length;p++){var f=e.parts[p];o.translate(f.vertices,e.velocity),p>0&&(f.position.x+=e.velocity.x,f.position.y+=e.velocity.y),0!==e.angularVelocity&&(o.rotate(f.vertices,e.angularVelocity,e.position),c.rotate(f.axes,e.angularVelocity),p>0&&r.rotateAbout(f.position,e.angularVelocity,e.position,f.position)),l.update(f.bounds,f.vertices,e.velocity)}},i.applyForce=function(e,t,n){e.force.x+=n.x,e.force.y+=n.y;var i=t.x-e.position.x,o=t.y-e.position.y;e.torque+=i*n.y-o*n.x},i._totalProperties=function(e){for(var t={mass:0,area:0,inertia:0,centre:{x:0,y:0}},n=1===e.parts.length?0:1;n<e.parts.length;n++){var i=e.parts[n],o=i.mass!==1/0?i.mass:1;t.mass+=o,t.area+=i.area,t.inertia+=i.inertia,t.centre=r.add(t.centre,r.mult(i.position,o))}return t.centre=r.div(t.centre,t.mass),t}}()},function(e,t,n){var i={};e.exports=i;var o=n(4);i._motionWakeThreshold=.18,i._motionSleepThreshold=.08,i._minBias=.9,i.update=function(e,t){for(var n=t*t*t,o=0;o<e.length;o++){var r=e[o],a=r.speed*r.speed+r.angularSpeed*r.angularSpeed;if(0===r.force.x&&0===r.force.y){var s=Math.min(r.motion,a),l=Math.max(r.motion,a);r.motion=i._minBias*s+(1-i._minBias)*l,r.sleepThreshold>0&&r.motion<i._motionSleepThreshold*n?(r.sleepCounter+=1,r.sleepCounter>=r.sleepThreshold&&i.set(r,!0)):r.sleepCounter>0&&(r.sleepCounter-=1)}else i.set(r,!1)}},i.afterCollisions=function(e,t){for(var n=t*t*t,o=0;o<e.length;o++){var r=e[o];if(r.isActive){var a=r.collision,s=a.bodyA.parent,l=a.bodyB.parent;if(!(s.isSleeping&&l.isSleeping||s.isStatic||l.isStatic)&&(s.isSleeping||l.isSleeping)){var c=s.isSleeping&&!s.isStatic?s:l,u=c===s?l:s;!c.isStatic&&u.motion>i._motionWakeThreshold*n&&i.set(c,!1)}}}},i.set=function(e,t){var n=e.isSleeping;t?(e.isSleeping=!0,e.sleepCounter=e.sleepThreshold,e.positionImpulse.x=0,e.positionImpulse.y=0,e.positionPrev.x=e.position.x,e.positionPrev.y=e.position.y,e.anglePrev=e.angle,e.speed=0,e.angularSpeed=0,e.motion=0,n||o.trigger(e,"sleepStart")):(e.isSleeping=!1,e.sleepCounter=0,n&&o.trigger(e,"sleepEnd"))}},function(e,t,n){var i={};e.exports=i;var o=n(3),r=n(2),a=n(7),s=n(1),l=n(10),c=n(0);i._warming=.4,i._torqueDampen=1,i._minLength=1e-6,i.create=function(e){var t=e;t.bodyA&&!t.pointA&&(t.pointA={x:0,y:0}),t.bodyB&&!t.pointB&&(t.pointB={x:0,y:0});var n=t.bodyA?r.add(t.bodyA.position,t.pointA):t.pointA,i=t.bodyB?r.add(t.bodyB.position,t.pointB):t.pointB,o=r.magnitude(r.sub(n,i));t.length=void 0!==t.length?t.length:o,t.id=t.id||c.nextId(),t.label=t.label||"Constraint",t.type="constraint",t.stiffness=t.stiffness||(t.length>0?1:.7),t.damping=t.damping||0,t.angularStiffness=t.angularStiffness||0,t.angleA=t.bodyA?t.bodyA.angle:t.angleA,t.angleB=t.bodyB?t.bodyB.angle:t.angleB,t.plugin={};var a={visible:!0,lineWidth:2,strokeStyle:"#ffffff",type:"line",anchors:!0};return 0===t.length&&t.stiffness>.1?(a.type="pin",a.anchors=!1):t.stiffness<.9&&(a.type="spring"),t.render=c.extend(a,t.render),t},i.preSolveAll=function(e){for(var t=0;t<e.length;t+=1){var n=e[t],i=n.constraintImpulse;n.isStatic||0===i.x&&0===i.y&&0===i.angle||(n.position.x+=i.x,n.position.y+=i.y,n.angle+=i.angle)}},i.solveAll=function(e,t){for(var n=0;n<e.length;n+=1){var o=e[n],r=!o.bodyA||o.bodyA&&o.bodyA.isStatic,a=!o.bodyB||o.bodyB&&o.bodyB.isStatic;(r||a)&&i.solve(e[n],t)}for(n=0;n<e.length;n+=1)r=!(o=e[n]).bodyA||o.bodyA&&o.bodyA.isStatic,a=!o.bodyB||o.bodyB&&o.bodyB.isStatic,r||a||i.solve(e[n],t)},i.solve=function(e,t){var n=e.bodyA,o=e.bodyB,a=e.pointA,s=e.pointB;if(n||o){n&&!n.isStatic&&(r.rotate(a,n.angle-e.angleA,a),e.angleA=n.angle),o&&!o.isStatic&&(r.rotate(s,o.angle-e.angleB,s),e.angleB=o.angle);var l=a,c=s;if(n&&(l=r.add(n.position,a)),o&&(c=r.add(o.position,s)),l&&c){var u=r.sub(l,c),d=r.magnitude(u);d<i._minLength&&(d=i._minLength);var p,f,v,m,y,g=(d-e.length)/d,x=e.stiffness<1?e.stiffness*t:e.stiffness,h=r.mult(u,g*x),b=(n?n.inverseMass:0)+(o?o.inverseMass:0),S=b+((n?n.inverseInertia:0)+(o?o.inverseInertia:0));if(e.damping){var w=r.create();v=r.div(u,d),y=r.sub(o&&r.sub(o.position,o.positionPrev)||w,n&&r.sub(n.position,n.positionPrev)||w),m=r.dot(v,y)}n&&!n.isStatic&&(f=n.inverseMass/b,n.constraintImpulse.x-=h.x*f,n.constraintImpulse.y-=h.y*f,n.position.x-=h.x*f,n.position.y-=h.y*f,e.damping&&(n.positionPrev.x-=e.damping*v.x*m*f,n.positionPrev.y-=e.damping*v.y*m*f),p=r.cross(a,h)/S*i._torqueDampen*n.inverseInertia*(1-e.angularStiffness),n.constraintImpulse.angle-=p,n.angle-=p),o&&!o.isStatic&&(f=o.inverseMass/b,o.constraintImpulse.x+=h.x*f,o.constraintImpulse.y+=h.y*f,o.position.x+=h.x*f,o.position.y+=h.y*f,e.damping&&(o.positionPrev.x+=e.damping*v.x*m*f,o.positionPrev.y+=e.damping*v.y*m*f),p=r.cross(s,h)/S*i._torqueDampen*o.inverseInertia*(1-e.angularStiffness),o.constraintImpulse.angle+=p,o.angle+=p)}}},i.postSolveAll=function(e){for(var t=0;t<e.length;t++){var n=e[t],c=n.constraintImpulse;if(!(n.isStatic||0===c.x&&0===c.y&&0===c.angle)){a.set(n,!1);for(var u=0;u<n.parts.length;u++){var d=n.parts[u];o.translate(d.vertices,c),u>0&&(d.position.x+=c.x,d.position.y+=c.y),0!==c.angle&&(o.rotate(d.vertices,c.angle,n.position),l.rotate(d.axes,c.angle),u>0&&r.rotateAbout(d.position,c.angle,n.position,d.position)),s.update(d.bounds,d.vertices,n.velocity)}c.angle*=i._warming,c.x*=i._warming,c.y*=i._warming}}},i.pointAWorld=function(e){return{x:(e.bodyA?e.bodyA.position.x:0)+e.pointA.x,y:(e.bodyA?e.bodyA.position.y:0)+e.pointA.y}},i.pointBWorld=function(e){return{x:(e.bodyB?e.bodyB.position.x:0)+e.pointB.x,y:(e.bodyB?e.bodyB.position.y:0)+e.pointB.y}}},function(e,t,n){var i={};e.exports=i;var o=n(17);i.create=function(e,t){var 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n=i._getRelativeMousePosition(e,t.element,t.pixelRatio);e.changedTouches?(t.button=0,e.preventDefault()):t.button=e.button,t.absolute.x=n.x,t.absolute.y=n.y,t.position.x=t.absolute.x*t.scale.x+t.offset.x,t.position.y=t.absolute.y*t.scale.y+t.offset.y,t.mousedownPosition.x=t.position.x,t.mousedownPosition.y=t.position.y,t.sourceEvents.mousedown=e},t.mouseup=function(e){var n=i._getRelativeMousePosition(e,t.element,t.pixelRatio);e.changedTouches&&e.preventDefault(),t.button=-1,t.absolute.x=n.x,t.absolute.y=n.y,t.position.x=t.absolute.x*t.scale.x+t.offset.x,t.position.y=t.absolute.y*t.scale.y+t.offset.y,t.mouseupPosition.x=t.position.x,t.mouseupPosition.y=t.position.y,t.sourceEvents.mouseup=e},t.mousewheel=function(e){t.wheelDelta=Math.max(-1,Math.min(1,e.wheelDelta||-e.detail)),e.preventDefault()},i.setElement(t,t.element),t},i.setElement=function(e,t){e.element=t,t.addEventListener("mousemove",e.mousemove),t.addEventListener("mousedown",e.mousedown),t.addEventListener("mouseup",e.mouseup),t.addEventListener("mousewheel",e.mousewheel),t.addEventListener("DOMMouseScroll",e.mousewheel),t.addEventListener("touchmove",e.mousemove),t.addEventListener("touchstart",e.mousedown),t.addEventListener("touchend",e.mouseup)},i.clearSourceEvents=function(e){e.sourceEvents.mousemove=null,e.sourceEvents.mousedown=null,e.sourceEvents.mouseup=null,e.sourceEvents.mousewheel=null,e.wheelDelta=0},i.setOffset=function(e,t){e.offset.x=t.x,e.offset.y=t.y,e.position.x=e.absolute.x*e.scale.x+e.offset.x,e.position.y=e.absolute.y*e.scale.y+e.offset.y},i.setScale=function(e,t){e.scale.x=t.x,e.scale.y=t.y,e.position.x=e.absolute.x*e.scale.x+e.offset.x,e.position.y=e.absolute.y*e.scale.y+e.offset.y},i._getRelativeMousePosition=function(e,t,n){var i,o,r=t.getBoundingClientRect(),a=document.documentElement||document.body.parentNode||document.body,s=void 0!==window.pageXOffset?window.pageXOffset:a.scrollLeft,l=void 0!==window.pageYOffset?window.pageYOffset:a.scrollTop,c=e.changedTouches;return c?(i=c[0].pageX-r.left-s,o=c[0].pageY-r.top-l):(i=e.pageX-r.left-s,o=e.pageY-r.top-l),{x:i/(t.clientWidth/(t.width||t.clientWidth)*n),y:o/(t.clientHeight/(t.height||t.clientHeight)*n)}}},function(e,t,n){var i={};e.exports=i;var o=n(14),r=n(9),a=n(1);i.collisions=function(e,t){for(var n=[],s=t.pairs.table,l=0;l<e.length;l++){var c=e[l][0],u=e[l][1];if((!c.isStatic&&!c.isSleeping||!u.isStatic&&!u.isSleeping)&&i.canCollide(c.collisionFilter,u.collisionFilter)&&a.overlaps(c.bounds,u.bounds))for(var d=c.parts.length>1?1:0;d<c.parts.length;d++)for(var p=c.parts[d],f=u.parts.length>1?1:0;f<u.parts.length;f++){var v=u.parts[f];if(p===c&&v===u||a.overlaps(p.bounds,v.bounds)){var m,y=s[r.id(p,v)];m=y&&y.isActive?y.collision:null;var g=o.collides(p,v,m);g.collided&&n.push(g)}}}return n},i.canCollide=function(e,t){return e.group===t.group&&0!==e.group?e.group>0:0!=(e.mask&t.category)&&0!=(t.mask&e.category)}},function(e,t,n){var i={};e.exports=i;var o=n(3),r=n(2);i.collides=function(e,t,n){var a,s,l,c,u=!1;if(n){var d=e.parent,p=t.parent,f=d.speed*d.speed+d.angularSpeed*d.angularSpeed+p.speed*p.speed+p.angularSpeed*p.angularSpeed;u=n&&n.collided&&f<.2,c=n}else c={collided:!1,bodyA:e,bodyB:t};if(n&&u){var v=c.axisBody,m=v===e?t:e,y=[v.axes[n.axisNumber]];if(l=i._overlapAxes(v.vertices,m.vertices,y),c.reused=!0,l.overlap<=0)return c.collided=!1,c}else{if((a=i._overlapAxes(e.vertices,t.vertices,e.axes)).overlap<=0)return c.collided=!1,c;if((s=i._overlapAxes(t.vertices,e.vertices,t.axes)).overlap<=0)return c.collided=!1,c;a.overlap<s.overlap?(l=a,c.axisBody=e):(l=s,c.axisBody=t),c.axisNumber=l.axisNumber}c.bodyA=e.id<t.id?e:t,c.bodyB=e.id<t.id?t:e,c.collided=!0,c.depth=l.overlap,c.parentA=c.bodyA.parent,c.parentB=c.bodyB.parent,e=c.bodyA,t=c.bodyB,r.dot(l.axis,r.sub(t.position,e.position))<0?c.normal={x:l.axis.x,y:l.axis.y}:c.normal={x:-l.axis.x,y:-l.axis.y},c.tangent=r.perp(c.normal),c.penetration=c.penetration||{},c.penetration.x=c.normal.x*c.depth,c.penetration.y=c.normal.y*c.depth;var g=i._findSupports(e,t,c.normal),x=[];if(o.contains(e.vertices,g[0])&&x.push(g[0]),o.contains(e.vertices,g[1])&&x.push(g[1]),x.length<2){var h=i._findSupports(t,e,r.neg(c.normal));o.contains(t.vertices,h[0])&&x.push(h[0]),x.length<2&&o.contains(t.vertices,h[1])&&x.push(h[1])}return x.length<1&&(x=[g[0]]),c.supports=x,c},i._overlapAxes=function(e,t,n){for(var o,a,s=r._temp[0],l=r._temp[1],c={overlap:Number.MAX_VALUE},u=0;u<n.length;u++){if(a=n[u],i._projectToAxis(s,e,a),i._projectToAxis(l,t,a),(o=Math.min(s.max-l.min,l.max-s.min))<=0)return c.overlap=o,c;o<c.overlap&&(c.overlap=o,c.axis=a,c.axisNumber=u)}return c},i._projectToAxis=function(e,t,n){for(var i=r.dot(t[0],n),o=i,a=1;a<t.length;a+=1){var s=r.dot(t[a],n);s>o?o=s:s<i&&(i=s)}e.min=i,e.max=o},i._findSupports=function(e,t,n){for(var i,o,a,s,l=Number.MAX_VALUE,c=r._temp[0],u=t.vertices,d=e.position,p=0;p<u.length;p++)o=u[p],c.x=o.x-d.x,c.y=o.y-d.y,(i=-r.dot(n,c))<l&&(l=i,a=o);return o=u[a.index-1>=0?a.index-1:u.length-1],c.x=o.x-d.x,c.y=o.y-d.y,l=-r.dot(n,c),s=o,o=u[(a.index+1)%u.length],c.x=o.x-d.x,c.y=o.y-d.y,(i=-r.dot(n,c))<l&&(s=o),[a,s]}},function(e,t,n){var i={};e.exports=i;var o=n(0);i._registry={},i.register=function(e){if(i.isPlugin(e)||o.warn("Plugin.register:",i.toString(e),"does not implement all required fields."),e.name in i._registry){var 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n=i.versionParse(t),o=i.versionParse(e);if(n.isRange){if("*"===n.operator||"*"===e)return!0;if(">"===n.operator)return o.number>n.number;if(">="===n.operator)return o.number>=n.number;if("~"===n.operator)return o.major===n.major&&o.minor===n.minor&&o.patch>=n.patch;if("^"===n.operator)return n.major>0?o.major===n.major&&o.number>=n.number:n.minor>0?o.minor===n.minor&&o.patch>=n.patch:o.patch===n.patch}return e===t||"*"===e}},function(e,t,n){var i={};e.exports=i;var o=n(0),r=n(5),a=n(1),s=n(4),l=n(2),c=n(12);!function(){var e,t;"undefined"!=typeof window&&(e=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame||function(e){window.setTimeout((function(){e(o.now())}),1e3/60)},t=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame),i._goodFps=30,i._goodDelta=1e3/60,i.create=function(e){var t={controller:i,engine:null,element:null,canvas:null,mouse:null,frameRequestId:null,timing:{historySize:60,delta:0,deltaHistory:[],lastTime:0,lastTimestamp:0,lastElapsed:0,timestampElapsed:0,timestampElapsedHistory:[],engineDeltaHistory:[],engineElapsedHistory:[],elapsedHistory:[]},options:{width:800,height:600,pixelRatio:1,background:"#14151f",wireframeBackground:"#14151f",hasBounds:!!e.bounds,enabled:!0,wireframes:!0,showSleeping:!0,showDebug:!1,showStats:!1,showPerformance:!1,showBroadphase:!1,showBounds:!1,showVelocity:!1,showCollisions:!1,showSeparations:!1,showAxes:!1,showPositions:!1,showAngleIndicator:!1,showIds:!1,showVertexNumbers:!1,showConvexHulls:!1,showInternalEdges:!1,showMousePosition:!1}},n=o.extend(t,e);return n.canvas&&(n.canvas.width=n.options.width||n.canvas.width,n.canvas.height=n.options.height||n.canvas.height),n.mouse=e.mouse,n.engine=e.engine,n.canvas=n.canvas||d(n.options.width,n.options.height),n.context=n.canvas.getContext("2d"),n.textures={},n.bounds=n.bounds||{min:{x:0,y:0},max:{x:n.canvas.width,y:n.canvas.height}},1!==n.options.pixelRatio&&i.setPixelRatio(n,n.options.pixelRatio),o.isElement(n.element)?n.element.appendChild(n.canvas):n.canvas.parentNode||o.log("Render.create: options.element was undefined, render.canvas was created but not appended","warn"),n},i.run=function(t){!function o(r){t.frameRequestId=e(o),n(t,r),i.world(t,r),(t.options.showStats||t.options.showDebug)&&i.stats(t,t.context,r),(t.options.showPerformance||t.options.showDebug)&&i.performance(t,t.context,r)}()},i.stop=function(e){t(e.frameRequestId)},i.setPixelRatio=function(e,t){var n=e.options,i=e.canvas;"auto"===t&&(t=p(i)),n.pixelRatio=t,i.setAttribute("data-pixel-ratio",t),i.width=n.width*t,i.height=n.height*t,i.style.width=n.width+"px",i.style.height=n.height+"px"},i.lookAt=function(e,t,n,i){i=void 0===i||i,t=o.isArray(t)?t:[t],n=n||{x:0,y:0};for(var r={min:{x:1/0,y:1/0},max:{x:-1/0,y:-1/0}},a=0;a<t.length;a+=1){var s=t[a],l=s.bounds?s.bounds.min:s.min||s.position||s,u=s.bounds?s.bounds.max:s.max||s.position||s;l&&u&&(l.x<r.min.x&&(r.min.x=l.x),u.x>r.max.x&&(r.max.x=u.x),l.y<r.min.y&&(r.min.y=l.y),u.y>r.max.y&&(r.max.y=u.y))}var d=r.max.x-r.min.x+2*n.x,p=r.max.y-r.min.y+2*n.y,f=e.canvas.height,v=e.canvas.width/f,m=d/p,y=1,g=1;m>v?g=m/v:y=v/m,e.options.hasBounds=!0,e.bounds.min.x=r.min.x,e.bounds.max.x=r.min.x+d*y,e.bounds.min.y=r.min.y,e.bounds.max.y=r.min.y+p*g,i&&(e.bounds.min.x+=.5*d-d*y*.5,e.bounds.max.x+=.5*d-d*y*.5,e.bounds.min.y+=.5*p-p*g*.5,e.bounds.max.y+=.5*p-p*g*.5),e.bounds.min.x-=n.x,e.bounds.max.x-=n.x,e.bounds.min.y-=n.y,e.bounds.max.y-=n.y,e.mouse&&(c.setScale(e.mouse,{x:(e.bounds.max.x-e.bounds.min.x)/e.canvas.width,y:(e.bounds.max.y-e.bounds.min.y)/e.canvas.height}),c.setOffset(e.mouse,e.bounds.min))},i.startViewTransform=function(e){var t=e.bounds.max.x-e.bounds.min.x,n=e.bounds.max.y-e.bounds.min.y,i=t/e.options.width,o=n/e.options.height;e.context.setTransform(e.options.pixelRatio/i,0,0,e.options.pixelRatio/o,0,0),e.context.translate(-e.bounds.min.x,-e.bounds.min.y)},i.endViewTransform=function(e){e.context.setTransform(e.options.pixelRatio,0,0,e.options.pixelRatio,0,0)},i.world=function(e,t){var n,u=o.now(),d=e.engine,p=d.world,f=e.canvas,m=e.context,y=e.options,g=e.timing,x=r.allBodies(p),h=r.allConstraints(p),b=y.wireframes?y.wireframeBackground:y.background,S=[],w=[],A={timestamp:d.timing.timestamp};if(s.trigger(e,"beforeRender",A),e.currentBackground!==b&&v(e,b),m.globalCompositeOperation="source-in",m.fillStyle="transparent",m.fillRect(0,0,f.width,f.height),m.globalCompositeOperation="source-over",y.hasBounds){for(n=0;n<x.length;n++){var P=x[n];a.overlaps(P.bounds,e.bounds)&&S.push(P)}for(n=0;n<h.length;n++){var M=h[n],C=M.bodyA,B=M.bodyB,_=M.pointA,k=M.pointB;C&&(_=l.add(C.position,M.pointA)),B&&(k=l.add(B.position,M.pointB)),_&&k&&((a.contains(e.bounds,_)||a.contains(e.bounds,k))&&w.push(M))}i.startViewTransform(e),e.mouse&&(c.setScale(e.mouse,{x:(e.bounds.max.x-e.bounds.min.x)/e.options.width,y:(e.bounds.max.y-e.bounds.min.y)/e.options.height}),c.setOffset(e.mouse,e.bounds.min))}else w=h,S=x,1!==e.options.pixelRatio&&e.context.setTransform(e.options.pixelRatio,0,0,e.options.pixelRatio,0,0);!y.wireframes||d.enableSleeping&&y.showSleeping?i.bodies(e,S,m):(y.showConvexHulls&&i.bodyConvexHulls(e,S,m),i.bodyWireframes(e,S,m)),y.showBounds&&i.bodyBounds(e,S,m),(y.showAxes||y.showAngleIndicator)&&i.bodyAxes(e,S,m),y.showPositions&&i.bodyPositions(e,S,m),y.showVelocity&&i.bodyVelocity(e,S,m),y.showIds&&i.bodyIds(e,S,m),y.showSeparations&&i.separations(e,d.pairs.list,m),y.showCollisions&&i.collisions(e,d.pairs.list,m),y.showVertexNumbers&&i.vertexNumbers(e,S,m),y.showMousePosition&&i.mousePosition(e,e.mouse,m),i.constraints(w,m),y.showBroadphase&&i.grid(e,d.grid,m),y.hasBounds&&i.endViewTransform(e),s.trigger(e,"afterRender",A),g.lastElapsed=o.now()-u},i.stats=function(e,t,n){for(var i=e.engine,o=i.world,a=r.allBodies(o),s=0,l=0,c=0;c<a.length;c+=1)s+=a[c].parts.length;var u={Part:s,Body:a.length,Cons:r.allConstraints(o).length,Comp:r.allComposites(o).length,Pair:i.pairs.list.length};for(var d in t.fillStyle="#0e0f19",t.fillRect(l,0,302.5,44),t.font="12px Arial",t.textBaseline="top",t.textAlign="right",u){var p=u[d];t.fillStyle="#aaa",t.fillText(d,l+55,8),t.fillStyle="#eee",t.fillText(p,l+55,26),l+=55}},i.performance=function(e,t){var n=e.engine,o=e.timing,r=o.deltaHistory,a=o.elapsedHistory,s=o.timestampElapsedHistory,l=o.engineDeltaHistory,c=o.engineElapsedHistory,d=n.timing.lastDelta,p=u(r),f=u(a),v=u(l),m=u(c),y=u(s)/p||0,g=1e3/p||0;t.fillStyle="#0e0f19",t.fillRect(0,50,370,34),i.status(t,10,69,60,4,r.length,Math.round(g)+" fps",g/i._goodFps,(function(e){return r[e]/p-1})),i.status(t,82,69,60,4,l.length,d.toFixed(2)+" dt",i._goodDelta/d,(function(e){return l[e]/v-1})),i.status(t,154,69,60,4,c.length,m.toFixed(2)+" ut",1-m/i._goodFps,(function(e){return c[e]/m-1})),i.status(t,226,69,60,4,a.length,f.toFixed(2)+" rt",1-f/i._goodFps,(function(e){return a[e]/f-1})),i.status(t,298,69,60,4,s.length,y.toFixed(2)+" x",y*y*y,(function(e){return(s[e]/r[e]/y||0)-1}))},i.status=function(e,t,n,i,r,a,s,l,c){e.strokeStyle="#888",e.fillStyle="#444",e.lineWidth=1,e.fillRect(t,n+7,i,1),e.beginPath(),e.moveTo(t,n+7-r*o.clamp(.4*c(0),-2,2));for(var u=0;u<i;u+=1)e.lineTo(t+u,n+7-(u<a?r*o.clamp(.4*c(u),-2,2):0));e.stroke(),e.fillStyle="hsl("+o.clamp(25+95*l,0,120)+",100%,60%)",e.fillRect(t,n-7,4,4),e.font="12px Arial",e.textBaseline="middle",e.textAlign="right",e.fillStyle="#eee",e.fillText(s,t+i,n-5)},i.constraints=function(e,t){for(var n=t,i=0;i<e.length;i++){var r=e[i];if(r.render.visible&&r.pointA&&r.pointB){var a,s,c=r.bodyA,u=r.bodyB;if(a=c?l.add(c.position,r.pointA):r.pointA,"pin"===r.render.type)n.beginPath(),n.arc(a.x,a.y,3,0,2*Math.PI),n.closePath();else{if(s=u?l.add(u.position,r.pointB):r.pointB,n.beginPath(),n.moveTo(a.x,a.y),"spring"===r.render.type)for(var d,p=l.sub(s,a),f=l.perp(l.normalise(p)),v=Math.ceil(o.clamp(r.length/5,12,20)),m=1;m<v;m+=1)d=m%2==0?1:-1,n.lineTo(a.x+p.x*(m/v)+f.x*d*4,a.y+p.y*(m/v)+f.y*d*4);n.lineTo(s.x,s.y)}r.render.lineWidth&&(n.lineWidth=r.render.lineWidth,n.strokeStyle=r.render.strokeStyle,n.stroke()),r.render.anchors&&(n.fillStyle=r.render.strokeStyle,n.beginPath(),n.arc(a.x,a.y,3,0,2*Math.PI),n.arc(s.x,s.y,3,0,2*Math.PI),n.closePath(),n.fill())}}},i.bodies=function(e,t,n){var i,o,r,a,s=n,l=(e.engine,e.options),c=l.showInternalEdges||!l.wireframes;for(r=0;r<t.length;r++)if((i=t[r]).render.visible)for(a=i.parts.length>1?1:0;a<i.parts.length;a++)if((o=i.parts[a]).render.visible){if(l.showSleeping&&i.isSleeping?s.globalAlpha=.5*o.render.opacity:1!==o.render.opacity&&(s.globalAlpha=o.render.opacity),o.render.sprite&&o.render.sprite.texture&&!l.wireframes){var u=o.render.sprite,d=f(e,u.texture);s.translate(o.position.x,o.position.y),s.rotate(o.angle),s.drawImage(d,d.width*-u.xOffset*u.xScale,d.height*-u.yOffset*u.yScale,d.width*u.xScale,d.height*u.yScale),s.rotate(-o.angle),s.translate(-o.position.x,-o.position.y)}else{if(o.circleRadius)s.beginPath(),s.arc(o.position.x,o.position.y,o.circleRadius,0,2*Math.PI);else{s.beginPath(),s.moveTo(o.vertices[0].x,o.vertices[0].y);for(var p=1;p<o.vertices.length;p++)!o.vertices[p-1].isInternal||c?s.lineTo(o.vertices[p].x,o.vertices[p].y):s.moveTo(o.vertices[p].x,o.vertices[p].y),o.vertices[p].isInternal&&!c&&s.moveTo(o.vertices[(p+1)%o.vertices.length].x,o.vertices[(p+1)%o.vertices.length].y);s.lineTo(o.vertices[0].x,o.vertices[0].y),s.closePath()}l.wireframes?(s.lineWidth=1,s.strokeStyle="#bbb",s.stroke()):(s.fillStyle=o.render.fillStyle,o.render.lineWidth&&(s.lineWidth=o.render.lineWidth,s.strokeStyle=o.render.strokeStyle,s.stroke()),s.fill())}s.globalAlpha=1}},i.bodyWireframes=function(e,t,n){var i,o,r,a,s,l=n,c=e.options.showInternalEdges;for(l.beginPath(),r=0;r<t.length;r++)if((i=t[r]).render.visible)for(s=i.parts.length>1?1:0;s<i.parts.length;s++){for(o=i.parts[s],l.moveTo(o.vertices[0].x,o.vertices[0].y),a=1;a<o.vertices.length;a++)!o.vertices[a-1].isInternal||c?l.lineTo(o.vertices[a].x,o.vertices[a].y):l.moveTo(o.vertices[a].x,o.vertices[a].y),o.vertices[a].isInternal&&!c&&l.moveTo(o.vertices[(a+1)%o.vertices.length].x,o.vertices[(a+1)%o.vertices.length].y);l.lineTo(o.vertices[0].x,o.vertices[0].y)}l.lineWidth=1,l.strokeStyle="#bbb",l.stroke()},i.bodyConvexHulls=function(e,t,n){var i,o,r,a=n;for(a.beginPath(),o=0;o<t.length;o++)if((i=t[o]).render.visible&&1!==i.parts.length){for(a.moveTo(i.vertices[0].x,i.vertices[0].y),r=1;r<i.vertices.length;r++)a.lineTo(i.vertices[r].x,i.vertices[r].y);a.lineTo(i.vertices[0].x,i.vertices[0].y)}a.lineWidth=1,a.strokeStyle="rgba(255,255,255,0.2)",a.stroke()},i.vertexNumbers=function(e,t,n){var i,o,r,a=n;for(i=0;i<t.length;i++){var s=t[i].parts;for(r=s.length>1?1:0;r<s.length;r++){var l=s[r];for(o=0;o<l.vertices.length;o++)a.fillStyle="rgba(255,255,255,0.2)",a.fillText(i+"_"+o,l.position.x+.8*(l.vertices[o].x-l.position.x),l.position.y+.8*(l.vertices[o].y-l.position.y))}}},i.mousePosition=function(e,t,n){var i=n;i.fillStyle="rgba(255,255,255,0.8)",i.fillText(t.position.x+"  "+t.position.y,t.position.x+5,t.position.y-5)},i.bodyBounds=function(e,t,n){var i=n,o=(e.engine,e.options);i.beginPath();for(var r=0;r<t.length;r++){if(t[r].render.visible)for(var a=t[r].parts,s=a.length>1?1:0;s<a.length;s++){var l=a[s];i.rect(l.bounds.min.x,l.bounds.min.y,l.bounds.max.x-l.bounds.min.x,l.bounds.max.y-l.bounds.min.y)}}o.wireframes?i.strokeStyle="rgba(255,255,255,0.08)":i.strokeStyle="rgba(0,0,0,0.1)",i.lineWidth=1,i.stroke()},i.bodyAxes=function(e,t,n){var i,o,r,a,s=n,l=(e.engine,e.options);for(s.beginPath(),o=0;o<t.length;o++){var c=t[o],u=c.parts;if(c.render.visible)if(l.showAxes)for(r=u.length>1?1:0;r<u.length;r++)for(i=u[r],a=0;a<i.axes.length;a++){var d=i.axes[a];s.moveTo(i.position.x,i.position.y),s.lineTo(i.position.x+20*d.x,i.position.y+20*d.y)}else for(r=u.length>1?1:0;r<u.length;r++)for(i=u[r],a=0;a<i.axes.length;a++)s.moveTo(i.position.x,i.position.y),s.lineTo((i.vertices[0].x+i.vertices[i.vertices.length-1].x)/2,(i.vertices[0].y+i.vertices[i.vertices.length-1].y)/2)}l.wireframes?(s.strokeStyle="indianred",s.lineWidth=1):(s.strokeStyle="rgba(255, 255, 255, 0.4)",s.globalCompositeOperation="overlay",s.lineWidth=2),s.stroke(),s.globalCompositeOperation="source-over"},i.bodyPositions=function(e,t,n){var i,o,r,a,s=n,l=(e.engine,e.options);for(s.beginPath(),r=0;r<t.length;r++)if((i=t[r]).render.visible)for(a=0;a<i.parts.length;a++)o=i.parts[a],s.arc(o.position.x,o.position.y,3,0,2*Math.PI,!1),s.closePath();for(l.wireframes?s.fillStyle="indianred":s.fillStyle="rgba(0,0,0,0.5)",s.fill(),s.beginPath(),r=0;r<t.length;r++)(i=t[r]).render.visible&&(s.arc(i.positionPrev.x,i.positionPrev.y,2,0,2*Math.PI,!1),s.closePath());s.fillStyle="rgba(255,165,0,0.8)",s.fill()},i.bodyVelocity=function(e,t,n){var i=n;i.beginPath();for(var o=0;o<t.length;o++){var r=t[o];r.render.visible&&(i.moveTo(r.position.x,r.position.y),i.lineTo(r.position.x+2*(r.position.x-r.positionPrev.x),r.position.y+2*(r.position.y-r.positionPrev.y)))}i.lineWidth=3,i.strokeStyle="cornflowerblue",i.stroke()},i.bodyIds=function(e,t,n){var i,o,r=n;for(i=0;i<t.length;i++)if(t[i].render.visible){var a=t[i].parts;for(o=a.length>1?1:0;o<a.length;o++){var s=a[o];r.font="12px Arial",r.fillStyle="rgba(255,255,255,0.5)",r.fillText(s.id,s.position.x+10,s.position.y-10)}}},i.collisions=function(e,t,n){var i,o,r,a,s=n,l=e.options;for(s.beginPath(),r=0;r<t.length;r++)if((i=t[r]).isActive)for(o=i.collision,a=0;a<i.activeContacts.length;a++){var c=i.activeContacts[a].vertex;s.rect(c.x-1.5,c.y-1.5,3.5,3.5)}for(l.wireframes?s.fillStyle="rgba(255,255,255,0.7)":s.fillStyle="orange",s.fill(),s.beginPath(),r=0;r<t.length;r++)if((i=t[r]).isActive&&(o=i.collision,i.activeContacts.length>0)){var u=i.activeContacts[0].vertex.x,d=i.activeContacts[0].vertex.y;2===i.activeContacts.length&&(u=(i.activeContacts[0].vertex.x+i.activeContacts[1].vertex.x)/2,d=(i.activeContacts[0].vertex.y+i.activeContacts[1].vertex.y)/2),o.bodyB===o.supports[0].body||!0===o.bodyA.isStatic?s.moveTo(u-8*o.normal.x,d-8*o.normal.y):s.moveTo(u+8*o.normal.x,d+8*o.normal.y),s.lineTo(u,d)}l.wireframes?s.strokeStyle="rgba(255,165,0,0.7)":s.strokeStyle="orange",s.lineWidth=1,s.stroke()},i.separations=function(e,t,n){var i,o,r,a,s,l=n,c=e.options;for(l.beginPath(),s=0;s<t.length;s++)if((i=t[s]).isActive){r=(o=i.collision).bodyA;var u=1;(a=o.bodyB).isStatic||r.isStatic||(u=.5),a.isStatic&&(u=0),l.moveTo(a.position.x,a.position.y),l.lineTo(a.position.x-o.penetration.x*u,a.position.y-o.penetration.y*u),u=1,a.isStatic||r.isStatic||(u=.5),r.isStatic&&(u=0),l.moveTo(r.position.x,r.position.y),l.lineTo(r.position.x+o.penetration.x*u,r.position.y+o.penetration.y*u)}c.wireframes?l.strokeStyle="rgba(255,165,0,0.5)":l.strokeStyle="orange",l.stroke()},i.grid=function(e,t,n){var i=n;e.options.wireframes?i.strokeStyle="rgba(255,180,0,0.1)":i.strokeStyle="rgba(255,180,0,0.5)",i.beginPath();for(var r=o.keys(t.buckets),a=0;a<r.length;a++){var s=r[a];if(!(t.buckets[s].length<2)){var l=s.split(/C|R/);i.rect(.5+parseInt(l[1],10)*t.bucketWidth,.5+parseInt(l[2],10)*t.bucketHeight,t.bucketWidth,t.bucketHeight)}}i.lineWidth=1,i.stroke()},i.inspector=function(e,t){e.engine;var n,i=e.selected,o=e.render,r=o.options;if(r.hasBounds){var a=o.bounds.max.x-o.bounds.min.x,s=o.bounds.max.y-o.bounds.min.y,l=a/o.options.width,c=s/o.options.height;t.scale(1/l,1/c),t.translate(-o.bounds.min.x,-o.bounds.min.y)}for(var u=0;u<i.length;u++){var d=i[u].data;switch(t.translate(.5,.5),t.lineWidth=1,t.strokeStyle="rgba(255,165,0,0.9)",t.setLineDash([1,2]),d.type){case"body":n=d.bounds,t.beginPath(),t.rect(Math.floor(n.min.x-3),Math.floor(n.min.y-3),Math.floor(n.max.x-n.min.x+6),Math.floor(n.max.y-n.min.y+6)),t.closePath(),t.stroke();break;case"constraint":var p=d.pointA;d.bodyA&&(p=d.pointB),t.beginPath(),t.arc(p.x,p.y,10,0,2*Math.PI),t.closePath(),t.stroke()}t.setLineDash([]),t.translate(-.5,-.5)}null!==e.selectStart&&(t.translate(.5,.5),t.lineWidth=1,t.strokeStyle="rgba(255,165,0,0.6)",t.fillStyle="rgba(255,165,0,0.1)",n=e.selectBounds,t.beginPath(),t.rect(Math.floor(n.min.x),Math.floor(n.min.y),Math.floor(n.max.x-n.min.x),Math.floor(n.max.y-n.min.y)),t.closePath(),t.stroke(),t.fill(),t.translate(-.5,-.5)),r.hasBounds&&t.setTransform(1,0,0,1,0,0)};var n=function(e,t){var n=e.engine,o=e.timing,r=o.historySize,a=n.timing.timestamp;o.delta=t-o.lastTime||i._goodDelta,o.lastTime=t,o.timestampElapsed=a-o.lastTimestamp||0,o.lastTimestamp=a,o.deltaHistory.unshift(o.delta),o.deltaHistory.length=Math.min(o.deltaHistory.length,r),o.engineDeltaHistory.unshift(n.timing.lastDelta),o.engineDeltaHistory.length=Math.min(o.engineDeltaHistory.length,r),o.timestampElapsedHistory.unshift(o.timestampElapsed),o.timestampElapsedHistory.length=Math.min(o.timestampElapsedHistory.length,r),o.engineElapsedHistory.unshift(n.timing.lastElapsed),o.engineElapsedHistory.length=Math.min(o.engineElapsedHistory.length,r),o.elapsedHistory.unshift(o.lastElapsed),o.elapsedHistory.length=Math.min(o.elapsedHistory.length,r)},u=function(e){for(var t=0,n=0;n<e.length;n+=1)t+=e[n];return t/e.length||0},d=function(e,t){var n=document.createElement("canvas");return n.width=e,n.height=t,n.oncontextmenu=function(){return!1},n.onselectstart=function(){return!1},n},p=function(e){var t=e.getContext("2d");return(window.devicePixelRatio||1)/(t.webkitBackingStorePixelRatio||t.mozBackingStorePixelRatio||t.msBackingStorePixelRatio||t.oBackingStorePixelRatio||t.backingStorePixelRatio||1)},f=function(e,t){var n=e.textures[t];return n||((n=e.textures[t]=new Image).src=t,n)},v=function(e,t){var n=t;/(jpg|gif|png)$/.test(t)&&(n="url("+t+")"),e.canvas.style.background=n,e.canvas.style.backgroundSize="contain",e.currentBackground=t}}()},function(e,t){var n={};e.exports=n,n.create=function(e){return{id:n.id(e),vertex:e,normalImpulse:0,tangentImpulse:0}},n.id=function(e){return e.body.id+"_"+e.index}},function(e,t,n){var i={};e.exports=i;var o=n(7),r=n(19),a=n(13),s=n(20),l=n(21),c=n(4),u=n(5),d=n(8),p=n(0),f=n(6);i.create=function(e){e=e||{};var t=p.extend({positionIterations:6,velocityIterations:4,constraintIterations:2,enableSleeping:!1,events:[],plugin:{},grid:null,gravity:{x:0,y:1,scale:.001},timing:{timestamp:0,timeScale:1,lastDelta:0,lastElapsed:0}},e);return t.world=e.world||u.create({label:"World"}),t.grid=l.create(e.grid||e.broadphase),t.pairs=s.create(),t.world.gravity=t.gravity,t.broadphase=t.grid,t.metrics={},t},i.update=function(e,t,n){var f=p.now();t=t||1e3/60,n=n||1;var v,m,y=e.world,g=e.timing,x=e.grid;g.timestamp+=t*g.timeScale,g.lastDelta=t*g.timeScale;var h={timestamp:g.timestamp};c.trigger(e,"beforeUpdate",h);var b=u.allBodies(y),S=u.allConstraints(y);for(e.enableSleeping&&o.update(b,g.timeScale),i._bodiesApplyGravity(b,e.gravity),i._bodiesUpdate(b,t,g.timeScale,n,y.bounds),d.preSolveAll(b),m=0;m<e.constraintIterations;m++)d.solveAll(S,g.timeScale);d.postSolveAll(b),y.isModified&&l.clear(x),l.update(x,b,e,y.isModified),v=x.pairsList,y.isModified&&u.setModified(y,!1,!1,!0);var w=a.collisions(v,e),A=e.pairs,P=g.timestamp;for(s.update(A,w,P),s.removeOld(A,P),e.enableSleeping&&o.afterCollisions(A.list,g.timeScale),A.collisionStart.length>0&&c.trigger(e,"collisionStart",{pairs:A.collisionStart}),r.preSolvePosition(A.list),m=0;m<e.positionIterations;m++)r.solvePosition(A.list,g.timeScale);for(r.postSolvePosition(b),d.preSolveAll(b),m=0;m<e.constraintIterations;m++)d.solveAll(S,g.timeScale);for(d.postSolveAll(b),r.preSolveVelocity(A.list),m=0;m<e.velocityIterations;m++)r.solveVelocity(A.list,g.timeScale);return A.collisionActive.length>0&&c.trigger(e,"collisionActive",{pairs:A.collisionActive}),A.collisionEnd.length>0&&c.trigger(e,"collisionEnd",{pairs:A.collisionEnd}),i._bodiesClearForces(b),c.trigger(e,"afterUpdate",h),e.timing.lastElapsed=p.now()-f,e},i.merge=function(e,t){if(p.extend(e,t),t.world){e.world=t.world,i.clear(e);for(var n=u.allBodies(e.world),r=0;r<n.length;r++){var a=n[r];o.set(a,!1),a.id=p.nextId()}}},i.clear=function(e){var t=e.world,n=u.allBodies(t);s.clear(e.pairs),l.clear(e.grid),l.update(e.grid,n,e,!0)},i._bodiesClearForces=function(e){for(var t=0;t<e.length;t++){var n=e[t];n.force.x=0,n.force.y=0,n.torque=0}},i._bodiesApplyGravity=function(e,t){var n=void 0!==t.scale?t.scale:.001;if((0!==t.x||0!==t.y)&&0!==n)for(var i=0;i<e.length;i++){var o=e[i];o.isStatic||o.isSleeping||(o.force.y+=o.mass*t.y*n,o.force.x+=o.mass*t.x*n)}},i._bodiesUpdate=function(e,t,n,i,o){for(var r=0;r<e.length;r++){var a=e[r];a.isStatic||a.isSleeping||f.update(a,t,n,i)}}},function(e,t,n){var i={};e.exports=i;var o=n(3),r=n(2),a=n(0),s=n(1);i._restingThresh=4,i._restingThreshTangent=6,i._positionDampen=.9,i._positionWarming=.8,i._frictionNormalMultiplier=5,i.preSolvePosition=function(e){var t,n,i;for(t=0;t<e.length;t++)(n=e[t]).isActive&&(i=n.activeContacts.length,n.collision.parentA.totalContacts+=i,n.collision.parentB.totalContacts+=i)},i.solvePosition=function(e,t){var n,o,a,s,l,c,u,d,p,f=r._temp[0],v=r._temp[1],m=r._temp[2],y=r._temp[3];for(n=0;n<e.length;n++)(o=e[n]).isActive&&!o.isSensor&&(s=(a=o.collision).parentA,l=a.parentB,c=a.normal,u=r.sub(r.add(l.positionImpulse,l.position,f),r.add(s.positionImpulse,r.sub(l.position,a.penetration,v),m),y),o.separation=r.dot(c,u));for(n=0;n<e.length;n++)(o=e[n]).isActive&&!o.isSensor&&(s=(a=o.collision).parentA,l=a.parentB,c=a.normal,p=(o.separation-o.slop)*t,(s.isStatic||l.isStatic)&&(p*=2),s.isStatic||s.isSleeping||(d=i._positionDampen/s.totalContacts,s.positionImpulse.x+=c.x*p*d,s.positionImpulse.y+=c.y*p*d),l.isStatic||l.isSleeping||(d=i._positionDampen/l.totalContacts,l.positionImpulse.x-=c.x*p*d,l.positionImpulse.y-=c.y*p*d))},i.postSolvePosition=function(e){for(var t=0;t<e.length;t++){var n=e[t];if(n.totalContacts=0,0!==n.positionImpulse.x||0!==n.positionImpulse.y){for(var a=0;a<n.parts.length;a++){var l=n.parts[a];o.translate(l.vertices,n.positionImpulse),s.update(l.bounds,l.vertices,n.velocity),l.position.x+=n.positionImpulse.x,l.position.y+=n.positionImpulse.y}n.positionPrev.x+=n.positionImpulse.x,n.positionPrev.y+=n.positionImpulse.y,r.dot(n.positionImpulse,n.velocity)<0?(n.positionImpulse.x=0,n.positionImpulse.y=0):(n.positionImpulse.x*=i._positionWarming,n.positionImpulse.y*=i._positionWarming)}}},i.preSolveVelocity=function(e){var t,n,i,o,a,s,l,c,u,d,p,f,v,m,y=r._temp[0],g=r._temp[1];for(t=0;t<e.length;t++)if((i=e[t]).isActive&&!i.isSensor)for(o=i.activeContacts,s=(a=i.collision).parentA,l=a.parentB,c=a.normal,u=a.tangent,n=0;n<o.length;n++)p=(d=o[n]).vertex,f=d.normalImpulse,v=d.tangentImpulse,0===f&&0===v||(y.x=c.x*f+u.x*v,y.y=c.y*f+u.y*v,s.isStatic||s.isSleeping||(m=r.sub(p,s.position,g),s.positionPrev.x+=y.x*s.inverseMass,s.positionPrev.y+=y.y*s.inverseMass,s.anglePrev+=r.cross(m,y)*s.inverseInertia),l.isStatic||l.isSleeping||(m=r.sub(p,l.position,g),l.positionPrev.x-=y.x*l.inverseMass,l.positionPrev.y-=y.y*l.inverseMass,l.anglePrev-=r.cross(m,y)*l.inverseInertia))},i.solveVelocity=function(e,t){for(var n=t*t,o=r._temp[0],s=r._temp[1],l=r._temp[2],c=r._temp[3],u=r._temp[4],d=r._temp[5],p=0;p<e.length;p++){var f=e[p];if(f.isActive&&!f.isSensor){var v=f.collision,m=v.parentA,y=v.parentB,g=v.normal,x=v.tangent,h=f.activeContacts,b=1/h.length;m.velocity.x=m.position.x-m.positionPrev.x,m.velocity.y=m.position.y-m.positionPrev.y,y.velocity.x=y.position.x-y.positionPrev.x,y.velocity.y=y.position.y-y.positionPrev.y,m.angularVelocity=m.angle-m.anglePrev,y.angularVelocity=y.angle-y.anglePrev;for(var S=0;S<h.length;S++){var w=h[S],A=w.vertex,P=r.sub(A,m.position,s),M=r.sub(A,y.position,l),C=r.add(m.velocity,r.mult(r.perp(P),m.angularVelocity),c),B=r.add(y.velocity,r.mult(r.perp(M),y.angularVelocity),u),_=r.sub(C,B,d),k=r.dot(g,_),I=r.dot(x,_),T=Math.abs(I),R=a.sign(I),E=(1+f.restitution)*k,L=a.clamp(f.separation+k,0,1)*i._frictionNormalMultiplier,V=I,O=1/0;T>f.friction*f.frictionStatic*L*n&&(O=T,V=a.clamp(f.friction*R*n,-O,O));var F=r.cross(P,g),D=r.cross(M,g),H=b/(m.inverseMass+y.inverseMass+m.inverseInertia*F*F+y.inverseInertia*D*D);if(E*=H,V*=H,k<0&&k*k>i._restingThresh*n)w.normalImpulse=0;else{var j=w.normalImpulse;w.normalImpulse=Math.min(w.normalImpulse+E,0),E=w.normalImpulse-j}if(I*I>i._restingThreshTangent*n)w.tangentImpulse=0;else{var W=w.tangentImpulse;w.tangentImpulse=a.clamp(w.tangentImpulse+V,-O,O),V=w.tangentImpulse-W}o.x=g.x*E+x.x*V,o.y=g.y*E+x.y*V,m.isStatic||m.isSleeping||(m.positionPrev.x+=o.x*m.inverseMass,m.positionPrev.y+=o.y*m.inverseMass,m.anglePrev+=r.cross(P,o)*m.inverseInertia),y.isStatic||y.isSleeping||(y.positionPrev.x-=o.x*y.inverseMass,y.positionPrev.y-=o.y*y.inverseMass,y.anglePrev-=r.cross(M,o)*y.inverseInertia)}}}}},function(e,t,n){var i={};e.exports=i;var o=n(9),r=n(0);i._pairMaxIdleLife=1e3,i.create=function(e){return r.extend({table:{},list:[],collisionStart:[],collisionActive:[],collisionEnd:[]},e)},i.update=function(e,t,n){var i,r,a,s,l=e.list,c=e.table,u=e.collisionStart,d=e.collisionEnd,p=e.collisionActive;for(u.length=0,d.length=0,p.length=0,s=0;s<l.length;s++)l[s].confirmedActive=!1;for(s=0;s<t.length;s++)(i=t[s]).collided&&((a=c[r=o.id(i.bodyA,i.bodyB)])?(a.isActive?p.push(a):u.push(a),o.update(a,i,n),a.confirmedActive=!0):(a=o.create(i,n),c[r]=a,u.push(a),l.push(a)));for(s=0;s<l.length;s++)(a=l[s]).isActive&&!a.confirmedActive&&(o.setActive(a,!1,n),d.push(a))},i.removeOld=function(e,t){var n,o,r,a,s=e.list,l=e.table,c=[];for(a=0;a<s.length;a++)(o=(n=s[a]).collision).bodyA.isSleeping||o.bodyB.isSleeping?n.timeUpdated=t:t-n.timeUpdated>i._pairMaxIdleLife&&c.push(a);for(a=0;a<c.length;a++)delete l[(n=s[r=c[a]-a]).id],s.splice(r,1)},i.clear=function(e){return e.table={},e.list.length=0,e.collisionStart.length=0,e.collisionActive.length=0,e.collisionEnd.length=0,e}},function(e,t,n){var i={};e.exports=i;var o=n(9),r=n(0);i.create=function(e){return r.extend({buckets:{},pairs:{},pairsList:[],bucketWidth:48,bucketHeight:48},e)},i.update=function(e,t,n,o){var r,a,s,l,c,u=n.world,d=e.buckets,p=!1;for(r=0;r<t.length;r++){var f=t[r];if((!f.isSleeping||o)&&(!u.bounds||!(f.bounds.max.x<u.bounds.min.x||f.bounds.min.x>u.bounds.max.x||f.bounds.max.y<u.bounds.min.y||f.bounds.min.y>u.bounds.max.y))){var v=i._getRegion(e,f);if(!f.region||v.id!==f.region.id||o){f.region&&!o||(f.region=v);var m=i._regionUnion(v,f.region);for(a=m.startCol;a<=m.endCol;a++)for(s=m.startRow;s<=m.endRow;s++){l=d[c=i._getBucketId(a,s)];var y=a>=v.startCol&&a<=v.endCol&&s>=v.startRow&&s<=v.endRow,g=a>=f.region.startCol&&a<=f.region.endCol&&s>=f.region.startRow&&s<=f.region.endRow;!y&&g&&g&&l&&i._bucketRemoveBody(e,l,f),(f.region===v||y&&!g||o)&&(l||(l=i._createBucket(d,c)),i._bucketAddBody(e,l,f))}f.region=v,p=!0}}}p&&(e.pairsList=i._createActivePairsList(e))},i.clear=function(e){e.buckets={},e.pairs={},e.pairsList=[]},i._regionUnion=function(e,t){var n=Math.min(e.startCol,t.startCol),o=Math.max(e.endCol,t.endCol),r=Math.min(e.startRow,t.startRow),a=Math.max(e.endRow,t.endRow);return i._createRegion(n,o,r,a)},i._getRegion=function(e,t){var n=t.bounds,o=Math.floor(n.min.x/e.bucketWidth),r=Math.floor(n.max.x/e.bucketWidth),a=Math.floor(n.min.y/e.bucketHeight),s=Math.floor(n.max.y/e.bucketHeight);return i._createRegion(o,r,a,s)},i._createRegion=function(e,t,n,i){return{id:e+","+t+","+n+","+i,startCol:e,endCol:t,startRow:n,endRow:i}},i._getBucketId=function(e,t){return"C"+e+"R"+t},i._createBucket=function(e,t){return e[t]=[]},i._bucketAddBody=function(e,t,n){for(var i=0;i<t.length;i++){var r=t[i];if(!(n.id===r.id||n.isStatic&&r.isStatic)){var a=o.id(n,r),s=e.pairs[a];s?s[2]+=1:e.pairs[a]=[n,r,1]}}t.push(n)},i._bucketRemoveBody=function(e,t,n){t.splice(r.indexOf(t,n),1);for(var i=0;i<t.length;i++){var a=t[i],s=o.id(n,a),l=e.pairs[s];l&&(l[2]-=1)}},i._createActivePairsList=function(e){var t,n,i=[];t=r.keys(e.pairs);for(var o=0;o<t.length;o++)(n=e.pairs[t[o]])[2]>0?i.push(n):delete e.pairs[t[o]];return i}},function(e,t,n){var i=e.exports=n(23);i.Axes=n(10),i.Bodies=n(11),i.Body=n(6),i.Bounds=n(1),i.Common=n(0),i.Composite=n(5),i.Composites=n(24),i.Constraint=n(8),i.Contact=n(17),i.Detector=n(13),i.Engine=n(18),i.Events=n(4),i.Grid=n(21),i.Mouse=n(12),i.MouseConstraint=n(25),i.Pair=n(9),i.Pairs=n(20),i.Plugin=n(15),i.Query=n(26),i.Render=n(16),i.Resolver=n(19),i.Runner=n(27),i.SAT=n(14),i.Sleeping=n(7),i.Svg=n(28),i.Vector=n(2),i.Vertices=n(3),i.World=n(29)},function(e,t,n){var i={};e.exports=i;var o=n(15),r=n(0);i.name="matter-js",i.version="0.17.0",i.uses=[],i.used=[],i.use=function(){o.use(i,Array.prototype.slice.call(arguments))},i.before=function(e,t){return e=e.replace(/^Matter./,""),r.chainPathBefore(i,e,t)},i.after=function(e,t){return e=e.replace(/^Matter./,""),r.chainPathAfter(i,e,t)}},function(e,t,n){var i={};e.exports=i;var o=n(5),r=n(8),a=n(0),s=n(6),l=n(11),c=a.deprecated;i.stack=function(e,t,n,i,r,a,l){for(var c,u=o.create({label:"Stack"}),d=e,p=t,f=0,v=0;v<i;v++){for(var m=0,y=0;y<n;y++){var g=l(d,p,y,v,c,f);if(g){var x=g.bounds.max.y-g.bounds.min.y,h=g.bounds.max.x-g.bounds.min.x;x>m&&(m=x),s.translate(g,{x:.5*h,y:.5*x}),d=g.bounds.max.x+r,o.addBody(u,g),c=g,f+=1}else d+=r}p+=m+a,d=e}return u},i.chain=function(e,t,n,i,s,l){for(var c=e.bodies,u=1;u<c.length;u++){var d=c[u-1],p=c[u],f=d.bounds.max.y-d.bounds.min.y,v=d.bounds.max.x-d.bounds.min.x,m=p.bounds.max.y-p.bounds.min.y,y={bodyA:d,pointA:{x:v*t,y:f*n},bodyB:p,pointB:{x:(p.bounds.max.x-p.bounds.min.x)*i,y:m*s}},g=a.extend(y,l);o.addConstraint(e,r.create(g))}return e.label+=" Chain",e},i.mesh=function(e,t,n,i,s){var l,c,u,d,p,f=e.bodies;for(l=0;l<n;l++){for(c=1;c<t;c++)u=f[c-1+l*t],d=f[c+l*t],o.addConstraint(e,r.create(a.extend({bodyA:u,bodyB:d},s)));if(l>0)for(c=0;c<t;c++)u=f[c+(l-1)*t],d=f[c+l*t],o.addConstraint(e,r.create(a.extend({bodyA:u,bodyB:d},s))),i&&c>0&&(p=f[c-1+(l-1)*t],o.addConstraint(e,r.create(a.extend({bodyA:p,bodyB:d},s)))),i&&c<t-1&&(p=f[c+1+(l-1)*t],o.addConstraint(e,r.create(a.extend({bodyA:p,bodyB:d},s))))}return e.label+=" Mesh",e},i.pyramid=function(e,t,n,o,r,a,l){return i.stack(e,t,n,o,r,a,(function(t,i,a,c,u,d){var p=Math.min(o,Math.ceil(n/2)),f=u?u.bounds.max.x-u.bounds.min.x:0;if(!(c>p||a<(c=p-c)||a>n-1-c))return 1===d&&s.translate(u,{x:(a+(n%2==1?1:-1))*f,y:0}),l(e+(u?a*f:0)+a*r,i,a,c,u,d)}))},i.newtonsCradle=function(e,t,n,i,a){for(var s=o.create({label:"Newtons Cradle"}),c=0;c<n;c++){var u=l.circle(e+c*(1.9*i),t+a,i,{inertia:1/0,restitution:1,friction:0,frictionAir:1e-4,slop:1}),d=r.create({pointA:{x:e+c*(1.9*i),y:t},bodyB:u});o.addBody(s,u),o.addConstraint(s,d)}return s},c(i,"newtonsCradle","Composites.newtonsCradle ➤ moved to newtonsCradle example"),i.car=function(e,t,n,i,a){var c=s.nextGroup(!0),u=.5*-n+20,d=.5*n-20,p=o.create({label:"Car"}),f=l.rectangle(e,t,n,i,{collisionFilter:{group:c},chamfer:{radius:.5*i},density:2e-4}),v=l.circle(e+u,t+0,a,{collisionFilter:{group:c},friction:.8}),m=l.circle(e+d,t+0,a,{collisionFilter:{group:c},friction:.8}),y=r.create({bodyB:f,pointB:{x:u,y:0},bodyA:v,stiffness:1,length:0}),g=r.create({bodyB:f,pointB:{x:d,y:0},bodyA:m,stiffness:1,length:0});return o.addBody(p,f),o.addBody(p,v),o.addBody(p,m),o.addConstraint(p,y),o.addConstraint(p,g),p},c(i,"car","Composites.car ➤ moved to car example"),i.softBody=function(e,t,n,o,r,s,c,u,d,p){d=a.extend({inertia:1/0},d),p=a.extend({stiffness:.2,render:{type:"line",anchors:!1}},p);var f=i.stack(e,t,n,o,r,s,(function(e,t){return l.circle(e,t,u,d)}));return i.mesh(f,n,o,c,p),f.label="Soft Body",f},c(i,"softBody","Composites.softBody ➤ moved to softBody and cloth examples")},function(e,t,n){var i={};e.exports=i;var o=n(3),r=n(7),a=n(12),s=n(4),l=n(13),c=n(8),u=n(5),d=n(0),p=n(1);i.create=function(e,t){var n=(e?e.mouse:null)||(t?t.mouse:null);n||(e&&e.render&&e.render.canvas?n=a.create(e.render.canvas):t&&t.element?n=a.create(t.element):(n=a.create(),d.warn("MouseConstraint.create: options.mouse was undefined, options.element was undefined, may not function as expected")));var o={type:"mouseConstraint",mouse:n,element:null,body:null,constraint:c.create({label:"Mouse Constraint",pointA:n.position,pointB:{x:0,y:0},length:.01,stiffness:.1,angularStiffness:1,render:{strokeStyle:"#90EE90",lineWidth:3}}),collisionFilter:{category:1,mask:4294967295,group:0}},r=d.extend(o,t);return s.on(e,"beforeUpdate",(function(){var t=u.allBodies(e.world);i.update(r,t),i._triggerEvents(r)})),r},i.update=function(e,t){var n=e.mouse,i=e.constraint,a=e.body;if(0===n.button){if(i.bodyB)r.set(i.bodyB,!1),i.pointA=n.position;else for(var c=0;c<t.length;c++)if(a=t[c],p.contains(a.bounds,n.position)&&l.canCollide(a.collisionFilter,e.collisionFilter))for(var u=a.parts.length>1?1:0;u<a.parts.length;u++){var d=a.parts[u];if(o.contains(d.vertices,n.position)){i.pointA=n.position,i.bodyB=e.body=a,i.pointB={x:n.position.x-a.position.x,y:n.position.y-a.position.y},i.angleB=a.angle,r.set(a,!1),s.trigger(e,"startdrag",{mouse:n,body:a});break}}}else i.bodyB=e.body=null,i.pointB=null,a&&s.trigger(e,"enddrag",{mouse:n,body:a})},i._triggerEvents=function(e){var t=e.mouse,n=t.sourceEvents;n.mousemove&&s.trigger(e,"mousemove",{mouse:t}),n.mousedown&&s.trigger(e,"mousedown",{mouse:t}),n.mouseup&&s.trigger(e,"mouseup",{mouse:t}),a.clearSourceEvents(t)}},function(e,t,n){var i={};e.exports=i;var o=n(2),r=n(14),a=n(1),s=n(11),l=n(3);i.collides=function(e,t){for(var n=[],i=0;i<t.length;i++){var o=t[i];if(a.overlaps(o.bounds,e.bounds))for(var s=1===o.parts.length?0:1;s<o.parts.length;s++){var l=o.parts[s];if(a.overlaps(l.bounds,e.bounds)){var c=r.collides(l,e);if(c.collided){n.push(c);break}}}}return n},i.ray=function(e,t,n,r){r=r||1e-100;for(var a=o.angle(t,n),l=o.magnitude(o.sub(t,n)),c=.5*(n.x+t.x),u=.5*(n.y+t.y),d=s.rectangle(c,u,l,r,{angle:a}),p=i.collides(d,e),f=0;f<p.length;f+=1){var v=p[f];v.body=v.bodyB=v.bodyA}return p},i.region=function(e,t,n){for(var i=[],o=0;o<e.length;o++){var r=e[o],s=a.overlaps(r.bounds,t);(s&&!n||!s&&n)&&i.push(r)}return i},i.point=function(e,t){for(var n=[],i=0;i<e.length;i++){var o=e[i];if(a.contains(o.bounds,t))for(var r=1===o.parts.length?0:1;r<o.parts.length;r++){var s=o.parts[r];if(a.contains(s.bounds,t)&&l.contains(s.vertices,t)){n.push(o);break}}}return n}},function(e,t,n){var i={};e.exports=i;var o=n(4),r=n(18),a=n(0);!function(){var e,t,n;("undefined"!=typeof window&&(e=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame,t=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame),e)||(e=function(e){n=setTimeout((function(){e(a.now())}),1e3/60)},t=function(){clearTimeout(n)});i.create=function(e){var t=a.extend({fps:60,correction:1,deltaSampleSize:60,counterTimestamp:0,frameCounter:0,deltaHistory:[],timePrev:null,timeScalePrev:1,frameRequestId:null,isFixed:!1,enabled:!0},e);return t.delta=t.delta||1e3/t.fps,t.deltaMin=t.deltaMin||1e3/t.fps,t.deltaMax=t.deltaMax||1e3/(.5*t.fps),t.fps=1e3/t.delta,t},i.run=function(t,n){return void 0!==t.positionIterations&&(n=t,t=i.create()),function o(r){t.frameRequestId=e(o),r&&t.enabled&&i.tick(t,n,r)}(),t},i.tick=function(e,t,n){var i,a=t.timing,s=1,l={timestamp:a.timestamp};o.trigger(e,"beforeTick",l),e.isFixed?i=e.delta:(i=n-e.timePrev||e.delta,e.timePrev=n,e.deltaHistory.push(i),e.deltaHistory=e.deltaHistory.slice(-e.deltaSampleSize),s=(i=(i=(i=Math.min.apply(null,e.deltaHistory))<e.deltaMin?e.deltaMin:i)>e.deltaMax?e.deltaMax:i)/e.delta,e.delta=i),0!==e.timeScalePrev&&(s*=a.timeScale/e.timeScalePrev),0===a.timeScale&&(s=0),e.timeScalePrev=a.timeScale,e.correction=s,e.frameCounter+=1,n-e.counterTimestamp>=1e3&&(e.fps=e.frameCounter*((n-e.counterTimestamp)/1e3),e.counterTimestamp=n,e.frameCounter=0),o.trigger(e,"tick",l),o.trigger(e,"beforeUpdate",l),r.update(t,i,s),o.trigger(e,"afterUpdate",l),o.trigger(e,"afterTick",l)},i.stop=function(e){t(e.frameRequestId)},i.start=function(e,t){i.run(e,t)}}()},function(e,t,n){var i={};e.exports=i;n(1);var o=n(0);i.pathToVertices=function(e,t){"undefined"==typeof window||"SVGPathSeg"in window||o.warn("Svg.pathToVertices: SVGPathSeg not defined, a polyfill is required.");var n,r,a,s,l,c,u,d,p,f,v,m=[],y=0,g=0,x=0;t=t||15;var h=function(e,t,n){var i=n%2==1&&n>1;if(!p||e!=p.x||t!=p.y){p&&i?(f=p.x,v=p.y):(f=0,v=0);var o={x:f+e,y:v+t};!i&&p||(p=o),m.push(o),g=f+e,x=v+t}},b=function(e){var t=e.pathSegTypeAsLetter.toUpperCase();if("Z"!==t){switch(t){case"M":case"L":case"T":case"C":case"S":case"Q":g=e.x,x=e.y;break;case"H":g=e.x;break;case"V":x=e.y}h(g,x,e.pathSegType)}};for(i._svgPathToAbsolute(e),a=e.getTotalLength(),c=[],n=0;n<e.pathSegList.numberOfItems;n+=1)c.push(e.pathSegList.getItem(n));for(u=c.concat();y<a;){if((l=c[e.getPathSegAtLength(y)])!=d){for(;u.length&&u[0]!=l;)b(u.shift());d=l}switch(l.pathSegTypeAsLetter.toUpperCase()){case"C":case"T":case"S":case"Q":case"A":s=e.getPointAtLength(y),h(s.x,s.y,0)}y+=t}for(n=0,r=u.length;n<r;++n)b(u[n]);return m},i._svgPathToAbsolute=function(e){for(var t,n,i,o,r,a,s=e.pathSegList,l=0,c=0,u=s.numberOfItems,d=0;d<u;++d){var p=s.getItem(d),f=p.pathSegTypeAsLetter;if(/[MLHVCSQTA]/.test(f))"x"in p&&(l=p.x),"y"in p&&(c=p.y);else switch("x1"in p&&(i=l+p.x1),"x2"in p&&(r=l+p.x2),"y1"in p&&(o=c+p.y1),"y2"in p&&(a=c+p.y2),"x"in p&&(l+=p.x),"y"in p&&(c+=p.y),f){case"m":s.replaceItem(e.createSVGPathSegMovetoAbs(l,c),d);break;case"l":s.replaceItem(e.createSVGPathSegLinetoAbs(l,c),d);break;case"h":s.replaceItem(e.createSVGPathSegLinetoHorizontalAbs(l),d);break;case"v":s.replaceItem(e.createSVGPathSegLinetoVerticalAbs(c),d);break;case"c":s.replaceItem(e.createSVGPathSegCurvetoCubicAbs(l,c,i,o,r,a),d);break;case"s":s.replaceItem(e.createSVGPathSegCurvetoCubicSmoothAbs(l,c,r,a),d);break;case"q":s.replaceItem(e.createSVGPathSegCurvetoQuadraticAbs(l,c,i,o),d);break;case"t":s.replaceItem(e.createSVGPathSegCurvetoQuadraticSmoothAbs(l,c),d);break;case"a":s.replaceItem(e.createSVGPathSegArcAbs(l,c,p.r1,p.r2,p.angle,p.largeArcFlag,p.sweepFlag),d);break;case"z":case"Z":l=t,c=n}"M"!=f&&"m"!=f||(t=l,n=c)}}},function(e,t,n){var i={};e.exports=i;var o=n(5);n(0);i.create=o.create,i.add=o.add,i.remove=o.remove,i.clear=o.clear,i.addComposite=o.addComposite,i.addBody=o.addBody,i.addConstraint=o.addConstraint}])}));
\ No newline at end of file

libs/stats.js

+var Stats = function () {
+    var startTime = Date.now(), prevTime = startTime;
+    var ms = 0, msMin = Infinity, msMax = 0;
+    var fps = 0, fpsMin = Infinity, fpsMax = 0;
+    var frames = 0, mode = 0;
+
+    var container = document.createElement('div');
+    container.id = 'stats';
+    container.addEventListener('mousedown', function (event) { event.preventDefault(); setMode(++mode % 2) }, false);
+    container.style.cssText = 'width:80px;opacity:0.9;cursor:pointer';
+
+    var fpsDiv = document.createElement('div');
+    fpsDiv.id = 'fps';
+    fpsDiv.style.cssText = 'padding:0 0 3px 3px;text-align:left;background-color:#002';
+    container.appendChild(fpsDiv);
+
+    var fpsText = document.createElement('div');
+    fpsText.id = 'fpsText';
+    fpsText.style.cssText = 'color:#0ff;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px';
+    fpsText.innerHTML = 'FPS';
+    fpsDiv.appendChild(fpsText);
+
+    var fpsGraph = document.createElement('div');
+    fpsGraph.id = 'fpsGraph';
+    fpsGraph.style.cssText = 'position:relative;width:74px;height:30px;background-color:#0ff';
+    fpsDiv.appendChild(fpsGraph);
+
+    while (fpsGraph.children.length < 74) {
+
+        var bar = document.createElement('span');
+        bar.style.cssText = 'width:1px;height:30px;float:left;background-color:#113';
+        fpsGraph.appendChild(bar);
+
+    }
+
+    var msDiv = document.createElement('div');
+    msDiv.id = 'ms';
+    msDiv.style.cssText = 'padding:0 0 3px 3px;text-align:left;background-color:#020;display:none';
+    container.appendChild(msDiv);
+
+    var msText = document.createElement('div');
+    msText.id = 'msText';
+    msText.style.cssText = 'color:#0f0;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px';
+    msText.innerHTML = 'MS';
+    msDiv.appendChild(msText);
+
+    var msGraph = document.createElement('div');
+    msGraph.id = 'msGraph';
+    msGraph.style.cssText = 'position:relative;width:74px;height:30px;background-color:#0f0';
+    msDiv.appendChild(msGraph);
+
+    while (msGraph.children.length < 74) {
+
+        var bar = document.createElement('span');
+        bar.style.cssText = 'width:1px;height:30px;float:left;background-color:#131';
+        msGraph.appendChild(bar);
+
+    }
+
+    var setMode = function (value) {
+
+        mode = value;
+
+        switch (mode) {
+
+            case 0:
+                fpsDiv.style.display = 'block';
+                msDiv.style.display = 'none';
+                break;
+            case 1:
+                fpsDiv.style.display = 'none';
+                msDiv.style.display = 'block';
+                break;
+        }
+
+    }
+
+    var updateGraph = function (dom, value) {
+
+        var child = dom.appendChild(dom.firstChild);
+        child.style.height = value + 'px';
+
+    }
+
+    return {
+
+        REVISION: 11,
+
+        domElement: container,
+
+        setMode: setMode,
+
+        begin: function () {
+
+            startTime = Date.now();
+
+        },
+
+        end: function () {
+
+            var time = Date.now();
+
+            ms = time - startTime;
+            msMin = Math.min(msMin, ms);
+            msMax = Math.max(msMax, ms);
+
+            msText.textContent = ms + ' MS (' + msMin + '-' + msMax + ')';
+            updateGraph(msGraph, Math.min(30, 30 - (ms / 200) * 30));
+
+            frames++;
+
+            if (time > prevTime + 1000) {
+
+                fps = Math.round((frames * 1000) / (time - prevTime));
+                fpsMin = Math.min(fpsMin, fps);
+                fpsMax = Math.max(fpsMax, fps);
+
+                fpsText.textContent = fps + ' FPS (' + fpsMin + '-' + fpsMax + ')';
+                updateGraph(fpsGraph, Math.min(30, 30 - (fps / 100) * 30));
+
+                prevTime = time;
+                frames = 0;
+
+            }
+
+            return time;
+
+        },
+
+        update: function () {
+
+            startTime = this.end();
+
+        }
+
+    }
+
+};
+
+//执行
+var stats = new Stats();
+stats.domElement.style.position = 'absolute';
+stats.domElement.style.top = '0px';
+document.body.appendChild(stats.domElement);
+aa();
+function aa() {
+    stats.update();
+    requestAnimationFrame(aa)
+}
\ No newline at end of file

libs/svgaParser.min.js

+!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.SvgaParser=t():e.SvgaParser=t()}(window,(function(){return d=[function(e,t,r){"use strict";var i,n,o=e.exports=r(1),s=r(16);o.codegen=r(45),o.fetch=r(46),o.path=r(47),o.fs=o.inquire("fs"),o.toArray=function(e){if(e){for(var t=Object.keys(e),r=new Array(t.length),i=0;i<t.length;)r[i]=e[t[i++]];return r}return[]},o.toObject=function(e){for(var t={},r=0;r<e.length;){var i=e[r++],n=e[r++];void 0!==n&&(t[i]=n)}return t};var 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o.decorateRoot.add(n),n.ctor=e,Object.defineProperty(e,"$type",{value:n,enumerable:!1}),Object.defineProperty(e.prototype,"$type",{value:n,enumerable:!1}),n};var u=0;o.decorateEnum=function(e){if(e.$type)return e.$type;var t=new(n=n||r(2))("Enum"+u++,e);return o.decorateRoot.add(t),Object.defineProperty(e,"$type",{value:t,enumerable:!1}),t},Object.defineProperty(o,"decorateRoot",{get:function(){return s.decorated||(s.decorated=new(r(26)))}})},function(e,t,r){"use strict";(function(e){var i=t;function n(e,t,r){for(var i=Object.keys(t),n=0;n<i.length;++n)void 0!==e[i[n]]&&r||(e[i[n]]=t[i[n]]);return e}function o(e){function t(e,r){if(!(this instanceof t))return new t(e,r);Object.defineProperty(this,"message",{get:function(){return e}}),Error.captureStackTrace?Error.captureStackTrace(this,t):Object.defineProperty(this,"stack",{value:(new 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e)for(var i in e)f.d(r,i,function(t){return e[t]}.bind(null,i));return r},f.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return f.d(t,"a",t),t},f.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},f.p="",f(f.s=27);function f(t){if(e[t])return e[t].exports;var r=e[t]={i:t,l:!1,exports:{}};return d[t].call(r.exports,r,r.exports,f),r.l=!0,r.exports}var d,e}));
+//// # sourceMappingURL=svgaParser.min.js.map
\ No newline at end of file

package.json

+{
+    "name": "babylon_demo1",
+    "version": "1.0.0",
+    "description": "",
+    "main": "index.js",
+    "scripts": {
+        "build": "webpack --config webpack.prod.js",
+        "dev": "webpack-dev-server --open --config webpack.dev.js --host 0.0.0.0"
+    },
+    "author": "",
+    "license": "ISC",
+    "devDependencies": {
+        "ts-loader": "4.0.0",
+        "typescript": "^4.2.4",
+        "webpack": "^4.1.0",
+        "webpack-cli": "^3.1.1",
+        "webpack-dev-server": "^3.1.0",
+        "webpack-merge": "^4.1.2"
+    },
+    "dependencies": {
+    }
+}

project.json

+{
+    "type": "activity",
+    "name": "template"
+}
\ No newline at end of file

src/GameScene/GUtils.ts

+/**
+ * Created by _xdq on 2021/04/07.
+ * 公共方法
+ * @export
+ * @class GUtils
+ */
+export class GUtils {
+    /** 随机数 */
+    static getRandom(max: number, min: number): number {
+        return Number((Math.random() * (max - min) + min).toFixed(1));
+    }
+    /** 获取角度 */
+    static getAngle(dy: number, dx: number): number {
+        const angle = Math.atan2(dy, dx) / Math.PI * 180;
+        return (angle + 360) % 360;
+    }
+    /** 判断整数 */
+    static isInteger(obj: any) {
+        return typeof obj === 'number' && obj % 1 === 0;
+    }
+    /** 拷贝数组 */
+    static copyArray(arr: Array<any>) {
+        let newArr = [];
+        for (var i = 0; i < arr.length; i++) {
+            newArr[i] = arr[i].concat();
+        }
+        return newArr;
+    }
+}
\ No newline at end of file

src/GameScene/GameCfg.ts

+/** 资源配置 */
+export const RES = {
+    wall: "//yun.duiba.com.cn/spark/assets/5fe60952f141c695902a1a7428bc4bb1c254627c.jpeg",
+}

src/GameScene/GameMgr.ts

+/**
+ * Created by _xdq on 2021/04/07.
+ * 静态方法
+ * @export
+ * @class GameCfg
+ */
+export class GameCfg {
+    private static _instance: GameCfg;
+
+    public static get Ins(): GameCfg {
+        if (!this._instance)
+            this._instance = new GameCfg();
+        return this._instance;
+    }
+
+    /**
+     * 获得texture纹理
+     * @param {string} url
+     * @memberof GameCfg
+     */
+    createTexture(url: string) {
+        let _texture: FYGE.Texture = url ? FYGE.Texture.fromUrl(url) : null;
+        _texture.baseTexture.premultipliedAlpha = false;
+        return _texture;
+    }
+}
\ No newline at end of file

src/GameScene/GameScene.ts

+/**
+ * Created by _xdq on 2021/06/01.
+ * 推箱子场景
+ */
+import { GUtils } from "./GUtils";
+import { DIR, BLOCK } from "./types";
+export class GameScene extends FYGE.Container {
+    
+}
\ No newline at end of file

src/GameScene/SoundMgr.ts

+export const SoundType = {
+    boom: "//yun.duiba.com.cn/aurora/assets/e3c91bdea3e14eff8cc042a7481f61355edb8b13.mp3",
+    light: "//yun.duiba.com.cn/aurora/assets/739c5aef1331b32894473ec888d7b7d5220b4ede.mp3",
+    pick: "//yun.duiba.com.cn/aurora/assets/b4250ad1e151dd796a62cc94ebb704e65bdc3f8a.mp3"
+}
+let _isFlag = false;
+/**
+ * 提前加载音频
+ * @param type
+ */
+export function preloadSound() {
+    for (let item in SoundType) {
+        soundHash[SoundType[item]] = new Howl({
+            src: SoundType[item],
+            preload: true,
+        });
+    }
+
+}
+
+/**
+ * 根据路径记录
+ */
+const soundHash: { [key: string]: Howl } = {};
+
+export function playSound(src: string, loop: boolean = false) {
+    console.log("999---2222",_isFlag);
+    if (_isFlag) return;
+    //console.log('测试音效',src);
+
+    let sound: Howl;
+    //循环的，且有缓存，取缓存的
+    if (soundHash[src] && loop) sound = soundHash[src]
+    //没有就新建
+    if (!sound) sound = new Howl({ src: [src], autoplay: false, loop });
+    //记录下，方便停止
+    soundHash[src] = sound;
+    //不循环删除缓存
+    if (!loop) sound.on('stop', function () {
+        delete soundHash[src]
+    });
+    //播放
+    sound.play();
+    //console.log('测试是否播放音效',src);
+    //返回一个，可以自行控制
+    return sound;
+}
+
+export function stopSound(src: string) {
+    if (soundHash[src]) soundHash[src].stop();
+}
+
+export function stopAllSound() {
+    _isFlag = true;
+    console.log("999---1111",_isFlag);
+    for (let key in soundHash) soundHash[key].stop();
+}
+
+export function playAllSound() {
+    _isFlag = false;
+    // for (let key in soundHash) soundHash[key].play();
+}
+
+
+//设置隐藏属性和改变可见属性的事件的名称
+let hidden: string, visibilityChange: string;
+if (typeof document.hidden !== 'undefined') {
+    hidden = 'hidden';
+    visibilityChange = 'visibilitychange';
+} else if (typeof document['msHidden'] !== 'undefined') {
+    hidden = 'msHidden';
+    visibilityChange = 'msvisibilitychange';
+} else if (typeof document['webkitHidden'] !== 'undefined') {
+    hidden = 'webkitHidden';
+    visibilityChange = 'webkitvisibilitychange';
+}
+
+const handleVisibilityChange = (e) => {
+    if (document.visibilityState == "visible") {
+        playAllSound();
+        console.log("网页显示")
+    } else if (document.visibilityState == "hidden") {
+        stopAllSound()
+        console.log("网页隐藏")
+    }
+};
+
+document.addEventListener(
+    visibilityChange,
+    handleVisibilityChange,
+    false
+);
+
+window.onbeforeunload = function () {
+    //发接口
+}

src/GameScene/types.ts

+/** 格子 0 无 1 墙壁 2 地板 3 箱子 4 箱子终点 5 人 */
+export enum BLOCK {
+    wall = 1,
+    ground = 2,
+    box = 3,
+    end = 4,
+    player = 5,
+    badBox = 6
+}
+
+/** 方向 */
+export enum DIR {
+    UP = 1,
+    DOWN = 2,
+    LEFT = 3,
+    RIGHT = 4
+}
\ No newline at end of file

src/Main.ts

+import { GameScene } from "./GameScene/GameScene";
+export class Main {
+    //主舞台
+    stage: FYGE.Stage;
+    private requestID;
+    private _pause: boolean;
+    private canvas: HTMLCanvasElement;
+    constructor(canvas: HTMLCanvasElement) {
+        //建舞台
+        var stage = new FYGE.Stage(
+            canvas,
+            750, //设计宽度，按设计搞给的就行
+            1624, //设计高度
+            document.body.clientWidth,
+            document.body.clientHeight,
+            FYGE.RENDERER_TYPE.WEBGL,
+            false //视窗居中裁切
+        );
+        this.stage = stage;
+        this.canvas = canvas; //赋值下，为了下面的destroy的cancelAnimationFrame
+        //stage初始化
+        stage.addEventListener(FYGE.Event.INIT_STAGE, this.onAddToStage, this);
+        //循环
+        var self = this;
+        loop();
+        function loop() {
+            if (!self._pause) {
+                FYGE.Tween.flush();
+                stage.flush();
+            }
+            //为了兼容多page的canvas
+            self.requestID = window.requestAnimationFrame(loop);
+        }
+    }
+    private async onAddToStage() {
+        const gameScene: GameScene = this.stage.addChild(new GameScene());
+    }
+
+    destroy() {
+        //Tween都移除，注意吧，可能原先的也被移除,,对于多page时注意，会把其他页面的也去掉
+        FYGE.Tween.removeAllTweens();
+        //停掉计时器
+        //@ts-ignore 为了兼容多page的canvas
+        window.cancelAnimationFrame(this.requestID);
+        //舞台销毁
+        this.stage.destroy();
+    }
+}

tsConfig.json

+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "es5",
+        "noImplicitAny": false,
+        "sourceMap": true,
+        "removeComments": true,
+        "noEmitOnError":true,
+        "outDir":"dist",
+        "lib": [
+			"es5",
+			"dom",
+			"es2015.promise"
+		]
+    },
+    "exclude": [
+        "node_modules"
+    ]
+}
\ No newline at end of file

webpack.common.js

+const path = require('path');
+module.exports = {
+    entry: './src/main.ts',
+    module: {
+        rules: [
+            {
+                test: /\.tsx?$/,
+                use: 'ts-loader', 
+                exclude: /node_modules/
+            }
+        ]
+    },
+    resolve: {
+        extensions: ['.tsx', '.ts', '.js']
+    },
+    output: {
+        filename: 'output.js',
+        path: __dirname,
+        libraryTarget: 'umd',
+    }
+};
\ No newline at end of file

webpack.dev.js

+const merge = require('webpack-merge');
+const common = require('./webpack.common.js');
+
+module.exports = merge(common, {
+    mode: "development",
+    devtool: 'eval-source-map',
+    devServer: {
+        contentBase: '.',
+        port: 9000,
+        hot: true
+    }
+});
\ No newline at end of file

webpack.prod.js

+const merge = require('webpack-merge');
+const common = require('./webpack.common.js');
+const webpack = require('webpack');
+
+module.exports = merge(common, {
+    mode: "production",
+    devtool: 'source-map',
+    plugins: [
+        new webpack.DefinePlugin({
+            'process.env.NODE_ENV': JSON.stringify('production')
+        })
+    ]
+});
\ No newline at end of file