<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">

  <style>
    body {
      overflow : hidden;
      padding : 0;
      margin : 0;
      background-color : #BBB;
    }
    #container {
      width : 100%;
      height : 100%;
      overflow : hidden;
      padding : 0;
      margin : 0;
      -webkit-user-select : none;
      -moz-user-select : none;
    }
  </style>

  <title>PiDuino</title>
</head>
<body>

<div id="container">
  <button id="forward" disabled="disabled">Wprzód</button>
  <button id="reverse" disabled="disabled">Wstecz</button>
</div>

<script src="/bower_components/virtualjoystick.js/virtualjoystick.js"></script>
<script src="/bower_components/uri.js/src/URI.min.js"></script>
<script>
  var ws = new WebSocket('ws://' + URI('<%= publicurl %>').host());

  var joystick  = new VirtualJoystick({
    container : document.getElementById('container'),
    mouseSupport : true
  });

  function step(timestamp) {
    if( joystick.up() ) {
      ws.send('forward');
    }

    if( joystick.down() ) {
      ws.send('reverse');
    }

    if( joystick.right() ) {
      ws.send('turnRight');
    } 

    if( joystick.left() ) {
      ws.send('turnLeft');
    }

    if( joystick.deltaX() === 0 && joystick.deltaY() === 0 && ws.readyState === 1) {
      ws.send('stop');
    }

    requestAnimationFrame(step);
  }

  requestAnimationFrame(step);
</script>
</body>
</html>