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CSS

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                
<html>
  <!--

https://www.youtube.com/watch?v=NN0-cg2_k-4

    (c) Copyright 2020 Warwick Molloy, Lokel Digital Pty Ltd
    Available for use under the MIT License
  -->
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">

    <script src="https://aframe.io/releases/1.0.4/aframe.min.js"></script>
    <script src="https://www.lokeldigital.com/shared-code/a-frame/onclick.js"></script>

    <!-- Environment component -->
    <script src="https://unpkg.com/aframe-environment-component@1.1.0/dist/aframe-environment-component.min.js"></script>

    <script>
      function posForEl(el) {
        let pos = el.object3D.position
        return `${pos.x} ${pos.y} ${pos.z}`
      }

      function moveTo(thing) {
        let camRig = document.querySelector('#camera-rig')
        camRig.setAttribute('animation', `property: position; from: ${posForEl(camRig)};to: ${posForEl(this)};dur: 1000`)
      }
    </script>
  </head>

<body>
  <a-scene>

    <a-assets>
      <!-- Shapes -->
      <a-mixin id="ball" geometry="primitive: sphere;radius:1"></a-mixin>
      <a-mixin id="bigball" geometry="primitive: sphere;radius:1.5"></a-mixin>
      <a-mixin id="cube" geometry="primitive: box; width: 2; depth:2; height: 2"></a-mixin>
      <a-mixin id="longbox" geometry="primitive: box; width: 2; depth:4; height: 2"></a-mixin>

      <!-- Positions -->
      <a-mixin id="fleft" position="-5 1 -5"></a-mixin>
      <a-mixin id="mid" position="-1 1 0"></a-mixin>
      <a-mixin id="nright" position="2.5 1.5 2.5"></a-mixin>
      <a-mixin id="nleft" position="-5 3 3"></a-mixin>
      <a-mixin id="box-fright" position="3 1 -4"></a-mixin>
      <a-mixin id="box-nleft" position="-5 1 3"></a-mixin>

      <!-- Behaviour -->
      <a-mixin id="clickable" onclick="moveTo"></a-mixin>
      <a-mixin id="bouncy"
        animation__bounceup="property: position; from: 0 0 0; to: 0 1 0; easing: easeInOutQuad; dur: 500; start-events: click, animationcomplete__bouncedown"
        animation__bouncedown="property: position; from: 0 1 0; to: 0 0 0; easing: easeInOutQuad; dur: 500; start-events: animationcomplete__bounceup"
      ></a-mixin>

      <!-- Colors -->
      <a-mixin id="orange" material="color: orange"></a-mixin>
      <a-mixin id="red" material="color: red"></a-mixin>
    </a-assets>

    <!-- Obstacles -->
    <a-entity id="fright-obs" mixin="red longbox box-fright"></a-entity>
    <a-entity id="nleft-obs" mixin="red box-nleft cube"></a-entity>

    <!-- Spheres -->
    <!--- f = far back ball --->
   <a-entity  id="fleft-ball" mixin="fleft clickable">
      <a-entity mixin="orange ball bouncy"></a-entity>
    </a-entity>

    <a-entity  id="mid-ball" mixin="mid clickable">
      <a-entity  mixin="orange ball bouncy"></a-entity>
    </a-entity>

    <a-entity  id="nleft-ball" mixin="nleft clickable">
      <a-entity  mixin="orange ball bouncy"></a-entity>
    </a-entity>

    <a-entity  id="nright-ball" mixin="nright clickable">
      <a-entity  mixin="orange bigball bouncy">                 

</a-entity>
    </a-entity>

    <!-- Camera Rig -->
    <a-entity id="camera-rig" position="0 1 3">
      <a-entity camera look-controls position="0 0 4" cursor="ray-origin: mouse" raycaster="objects: [geometry]"></a-entity>
    </a-entity>

    <a-entity environment></a-entity>

  </a-scene>
</body>

</html>
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