jbox2d

npm install @flyover/box2d --save

import * as box2d from '@flyover/box2d'
...

aboutToAppear() {
 selectArr = [];
 
 for (let i: number = 0; i < g_testEntries.length; ++i) {
   let o = {};
   o['value'] = g_testEntries[i].name;
   selectArr[i] = o;//初始化数据
 }
     //循环调用渲染
     this.init();
 }
 private init() {
     setTimeout(inits, timeStep);
 }
 const inits = function (time) {
   setTimeout(loop, timeStep);
 }
 
 const loop = function (time) {
   setTimeout(loop, timeStep);
   app.SimulationLoop(time);
 }

...
    //动画切换
    Select(selectArr)
           .selected(this.index)
           .value(selectArr[this.index].value)
           .font({ size: 20, weight: 200, family: 'serif', style: FontStyle.Normal })
           .selectedOptionFont({ size: 30, weight: 300, family: 'serif', style: FontStyle.Normal })
           .optionFont({ size: 20, weight: 200, family: 'serif', style: FontStyle.Normal })
           .onSelect((index: number) => {
             this.index = index;
             if (app) {
               app.m_test_index = index;
               //加载动画
               app.LoadTest();
             }
           })

|---- jbox2d
|     |---- entry  # 示例代码文件夹
|	    |----src
          |----main
              |----ets
                  |----pages
                      |----index.ets #效果主页面
                  |----Testbed
                      |----Framework 
                           |----DebugDraw.ets #效果绘制具体实现
                           |----FullscreenUI.ts #全局页面初始化，是否启用粒子参数
                           |----Main.ets #效果绘制入口
                           |----ParticleEmitter.ts #粒子发射器
                           |----ParticleParameter.ts #粒子参数
                           |----Test.ets #canvas相关初始化设置
                      |----Tests #所有效果具体实现
                      |----Testbed.ts #对外接口
|     |---- README.md  # 安装使用方法