explore/explore.js at master · gitbenji/explore · GitHub

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module.exports = function(app) {

  // called to create an exploration route avoiding common routes for specified time
  var explore = {

    // called to handle request for new loop --- call geo.js
    // get pass current location (lat & long) + time for stroll
    createLoop: function(req, res) {
      var duration = req.body.duration = 60;
      var startingCoords = req.body.coordinates = {
        lon: -80.37584781646729,
        lat: 25.761633861594447
      };
      var transMethod = req.body.transMethod = 'bike';

      var total_distance = establishDistance(duration, transMethod);

      var coords = new Object();
      coords.lon = startingCoords.lon;
      coords.lat = startingCoords.lat;

      var quadrants = ['q1', 'q2', 'q3', 'q4'];
      var invQuadrants = ['q3', 'q4', 'q1', 'q2'];
      var startingQuadrant = quadrants[Math.floor(Math.random()*quadrants.length)];
      quadrants.forEach(function(quadrant) {
        if (startingQuadrant == quadrant) {
          var index = quadrants.indexOf(quadrant);
          invQuadrants.splice(index, 1);
        }
      });

      // gets new coords
      // coords = round1(startingQuadrant, coords);
      //
      // var directionArr = [];
      // var directionOut;
      // var directionBack;
      // directionOut = getDirections(startingCoords, coords)
      // .then(function())
      // directionBack = getDirections(coords, startingCoords);
      //
      //
      // directionArr.concat(directionOut.routes, directionBack.routes);
      // console.log(directionArr);


      // var bbox = generateBbox(coords);
      // var cellWidth = 3000;
      // var units = 'kilometers';
      // var hexgrid = app.turf.hexGrid(bbox, cellWidth, units);
      //
      // console.log(hexgrid.features.length, bbox);
      // // response with loop route starting and ending at current location
      // res.send(hexgrid);
    }
  }
  return explore;

  function round1(startingQuadrant, coords) {
    var max = 0.018 ;
    var min = 0.001;
    if (startingQuadrant == 'q1') {
      coords.lat = coords.lat + (Math.random() * (max - min) + min);
      coords.lon = coords.lon + (Math.random() * (max - min) + min);
    } else if (startingQuadrant == 'q2') {
      coords.lat = coords.lat + (Math.random() * (max - min) + min);
      coords.lon = coords.lon - (Math.random() * (max - min) + min);
    } else if (startingQuadrant == 'q3') {
      coords.lat = coords.lat - (Math.random() * (max - min) + min);
      coords.lon = coords.lon - (Math.random() * (max - min) + min);
    } else {
      coords.lat = coords.lat - (Math.random() * (max - min) + min);
      coords.lon = coords.lon + (Math.random() * (max - min) + min);
    }
    return (coords);
  }

  function getDirections(startingCoords, coords) {
    var dfd = app.Q.defer();
    app.mapboxClient.getDirections(
    [
      { latitude: startingCoords.lat, longitude: startingCoords.lon },
      { latitude: coords.lat, longitude: coords.lon }
    ],
    { profile: 'mapbox.walking' },
    function(err, res) {
      if(err){
        dfd.reject(err);
      }
      console.log(res);
      dfd.resolve(res);
    });
    return dfd.promise;
  }


function establishDistance(duration, transMethod) {
  var distance = duration * 0.083;
  if (transMethod == 'walk') {
    distance = distance/3;
  }
  return distance;
}

// function generateBbox(coords) {
//   var longitude = coords.lon;
//   var latitude = coords.lat;
//
//   var fromCenter = 1;
//   var minX = latitude - fromCenter;
//   var maxX = latitude + fromCenter;
//   var minY = longitude - fromCenter;
//   var maxY = longitude + fromCenter;
//   var bbox = [minX, maxX, minY, maxY];
//
//   return bbox;
// }
}