orov-horizon-behavior.html

<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../orov-behaviors/orov-behavior.html">

<script>
(function (window) {
  'use strict';
  //ensure the namespace exists in the window object
  if(!(window.OROV)){window.OROV={}}
  if(!(window.OROV.behaviors)){window.OROV.behaviors={}}  
  var behaviors = window.OROV.behaviors;

  window.OROV.behaviors.orovhorizon = {
      properties: {
        roll: {type: Number},
        pitch: {type:Number},
        depth: {type: Number},
        thrust: {type: Number}
      },
      behaviors: [behaviors.oROVStandard],
        registerEmitterHandlers: function(emitter){
          var self = this;


          //Bail out if the data has not changed
          var lastData = {roll:0,pitch:0,depth:0,thrust:0};
          var newDataRecieved = false;
          emitter.on('plugin.navigationData.data',function(data){
            if (lastData.roll == data.roll 
                && lastData.pitch == data.pitch
                && lastData.depth == data.depth
                && lastData.thrust == data.thrust ) {return};
            lastData = data;
            newDataRecieved=true;
          });

          var updateData = function(){
            if (newDataRecieved)
            self.setData(lastData);
            setTimeout(updateData.bind(self),75);
          }
          updateData();
        },
        attached: function () {

        },
        setData: function (data) {
          var correctedData = {
            roll: data.roll * Math.PI / 180,
            pitch: data.pitch * Math.PI / 180,
            altitude: data.depth,
            speed: data.thrust
          };
          this.draw(correctedData);
        }                  
    }
  })(window);
</script>