Wie aktualisiere ich die Zentrumskoordinaten der Google Karte alle X Sekunden in Unity C#?

Question

Ich mache Pokemon Go-Like-Spiel. Ich möchte meine Karte überall aktualisieren, wo ich mein GPS verwende. Aber jetzt möchte ich die Koordinaten aktualisieren. Soll ich for Schleife verwenden?

using System.Collections; 
using System.Collections.Generic; 
using UnityEngine; 
using UnityEngine.UI; 

public class GoogleMap : MonoBehaviour { 
    public RawImage image; 
    string url; 

    public float lon, lat; 

    LocationInfo locationInfo; 

    public enum mapType {roadmap, satellite, hybrid, terrain} 
    public mapType mapSelected; 
    public int scale; 

    IEnumerator Map(){ 
     //url = "https://maps.googleapis.com/maps/api/staticmap?center=Brooklyn+Bridge,New+York,NY&zoom=13&size=600x300&maptype=roadmap&markers=color:blue%7Clabel:S%7C40.702147,-74.015794&markers=color:green%7Clabel:G%7C40.711614,-74.&markers=color:red%7Clabel:C%7C40.718217,-73.998284&key=AIzaSyB41TT9I-4eK5zcl_n4tarK79QzgyVD4lc"; 
     //url = "https://maps.googleapis.com/maps/api/staticmap?center=14.679046,120.540874&zoom=19&size=640x640&key=AIzaSyB41TT9I-4eK5zcl_n4tarK79QzgyVD4lc&scale=2"; 
     url = "https://maps.googleapis.com/maps/api/staticmap?&key=AIzaSyB41TT9I-4eK5zcl_n4tarK79QzgyVD4lc&center=14.679155295230377,120.54045265601641&zoom=18&format=png&maptype=roadmap&style=element:geometry%7Ccolor:0x1d2c4d&style=element:labels.text.fill%7Ccolor:0x8ec3b9&style=element:labels.text.stroke%7Ccolor:0x1a3646&style=feature:administrative.country%7Celement:geometry.stroke%7Ccolor:0x4b6878&style=feature:administrative.land_parcel%7Celement:labels.text.fill%7Ccolor:0x64779e&style=feature:administrative.province%7Celement:geometry.stroke%7Ccolor:0x4b6878&style=feature:landscape.man_made%7Celement:geometry.stroke%7Ccolor:0x334e87&style=feature:landscape.natural%7Celement:geometry%7Ccolor:0x023e58&style=feature:poi%7Celement:geometry%7Ccolor:0x283d6a&style=feature:poi%7Celement:labels.text.fill%7Ccolor:0x6f9ba5&style=feature:poi%7Celement:labels.text.stroke%7Ccolor:0x1d2c4d&style=feature:poi.business%7Cvisibility:off&style=feature:poi.park%7Celement:geometry.fill%7Ccolor:0x023e58&style=feature:poi.park%7Celement:labels.text%7Cvisibility:off&style=feature:poi.park%7Celement:labels.text.fill%7Ccolor:0x3C7680&style=feature:road%7Celement:geometry%7Ccolor:0x304a7d&style=feature:road%7Celement:labels.text.fill%7Ccolor:0x98a5be&style=feature:road%7Celement:labels.text.stroke%7Ccolor:0x1d2c4d&style=feature:road.highway%7Celement:geometry%7Ccolor:0x2c6675&style=feature:road.highway%7Celement:geometry.stroke%7Ccolor:0x255763&style=feature:road.highway%7Celement:labels.text.fill%7Ccolor:0xb0d5ce&style=feature:road.highway%7Celement:labels.text.stroke%7Ccolor:0x023e58&style=feature:transit%7Celement:labels.text.fill%7Ccolor:0x98a5be&style=feature:transit%7Celement:labels.text.stroke%7Ccolor:0x1d2c4d&style=feature:transit.line%7Celement:geometry.fill%7Ccolor:0x283d6a&style=feature:transit.station%7Celement:geometry%7Ccolor:0x3a4762&style=feature:water%7Celement:geometry%7Ccolor:0x0e1626&style=feature:water%7Celement:labels.text.fill%7Ccolor:0x4e6d70&size=640x640&scale=2"; 
     WWW www = new WWW (url); 
     yield return www; 
     image.texture = www.texture; 
     image.SetNativeSize(); 
    } 

    // Use this for initialization 
    void Start() { 
     image = gameObject.GetComponent<RawImage>(); 
     StartCoroutine (Map()); 
    } 

    // Update is called once per frame 
    void Update() { 

    } 
} 

Answer 1

Einfach den Code in der Map() Funktion innerhalb einer while Schleife und verwenden WaitForSeconds das Warten zu tun.

//Every 2 seconds 
float everyXtime = 2; 

IEnumerator Map() 
{ 
    while (true) 
    { 
     //url = "https://maps.googleapis.com/maps/api/staticmap?center=Brooklyn+Bridge,New+York,NY&zoom=13&size=600x300&maptype=roadmap&markers=color:blue%7Clabel:S%7C40.702147,-74.015794&markers=color:green%7Clabel:G%7C40.711614,-74.&markers=color:red%7Clabel:C%7C40.718217,-73.998284&key=AIzaSyB41TT9I-4eK5zcl_n4tarK79QzgyVD4lc"; 
     //url = "https://maps.googleapis.com/maps/api/staticmap?center=14.679046,120.540874&zoom=19&size=640x640&key=AIzaSyB41TT9I-4eK5zcl_n4tarK79QzgyVD4lc&scale=2"; 
     url = "https://maps.googleapis.com/maps/api/staticmap?&key=AIzaSyB41TT9I-4eK5zcl_n4tarK79QzgyVD4lc&center=14.679155295230377,120.54045265601641&zoom=18&format=png&maptype=roadmap&style=element:geometry%7Ccolor:0x1d2c4d&style=element:labels.text.fill%7Ccolor:0x8ec3b9&style=element:labels.text.stroke%7Ccolor:0x1a3646&style=feature:administrative.country%7Celement:geometry.stroke%7Ccolor:0x4b6878&style=feature:administrative.land_parcel%7Celement:labels.text.fill%7Ccolor:0x64779e&style=feature:administrative.province%7Celement:geometry.stroke%7Ccolor:0x4b6878&style=feature:landscape.man_made%7Celement:geometry.stroke%7Ccolor:0x334e87&style=feature:landscape.natural%7Celement:geometry%7Ccolor:0x023e58&style=feature:poi%7Celement:geometry%7Ccolor:0x283d6a&style=feature:poi%7Celement:labels.text.fill%7Ccolor:0x6f9ba5&style=feature:poi%7Celement:labels.text.stroke%7Ccolor:0x1d2c4d&style=feature:poi.business%7Cvisibility:off&style=feature:poi.park%7Celement:geometry.fill%7Ccolor:0x023e58&style=feature:poi.park%7Celement:labels.text%7Cvisibility:off&style=feature:poi.park%7Celement:labels.text.fill%7Ccolor:0x3C7680&style=feature:road%7Celement:geometry%7Ccolor:0x304a7d&style=feature:road%7Celement:labels.text.fill%7Ccolor:0x98a5be&style=feature:road%7Celement:labels.text.stroke%7Ccolor:0x1d2c4d&style=feature:road.highway%7Celement:geometry%7Ccolor:0x2c6675&style=feature:road.highway%7Celement:geometry.stroke%7Ccolor:0x255763&style=feature:road.highway%7Celement:labels.text.fill%7Ccolor:0xb0d5ce&style=feature:road.highway%7Celement:labels.text.stroke%7Ccolor:0x023e58&style=feature:transit%7Celement:labels.text.fill%7Ccolor:0x98a5be&style=feature:transit%7Celement:labels.text.stroke%7Ccolor:0x1d2c4d&style=feature:transit.line%7Celement:geometry.fill%7Ccolor:0x283d6a&style=feature:transit.station%7Celement:geometry%7Ccolor:0x3a4762&style=feature:water%7Celement:geometry%7Ccolor:0x0e1626&style=feature:water%7Celement:labels.text.fill%7Ccolor:0x4e6d70&size=640x640&scale=2"; 
     WWW www = new WWW(url); 
     yield return www; 
     image.texture = www.texture; 
     image.SetNativeSize(); 

     //Wait for that X time 
     yield return new WaitForSeconds(everyXtime); 
    } 
} 

Answer 2

Sie können wie auf Java in this Antwort über NmeaListener rohe NMEA Daten von GPS verwenden:

public class CustomNmeaListener implements GpsStatus.NmeaListener{ 

    private GoogleMap mGoogleMap; 
    private Marker mMarkerPosition = null; 
    private BitmapDescriptor mMarkerMoveDescriptor; 
    private BitmapDescriptor mMarkerStopDescriptor; 

    public CustomNmeaListener(GoogleMap googleMap, int markerMoveResource, int markerStopResource){ 
     this.mGoogleMap = googleMap; 

     mMarkerMoveDescriptor = BitmapDescriptorFactory.fromResource(markerMoveResource); 
     mMarkerStopDescriptor = BitmapDescriptorFactory.fromResource(markerStopResource); 
    } 

    @Override 
    public void onNmeaReceived(long timestamp, String nmea) { 
     double latitude; 
     double longitude; 
     float speed; 
     float angle; 

     // parse NMEA RMC sentence 
     // Example $GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4,230394,003.1,W*6A 
     // nmea [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] 
     if (nmea.startsWith("$GPRMC")) { 

      String[] nmeaParts = nmea.split(","); 

      // if RMC data valid ("active") 
      if (nmeaParts[2].equals("A")) { 
       latitude = parseLatitude(nmeaParts[3], nmeaParts[4]); 
       longitude = parseLongitude(nmeaParts[5], nmeaParts[6]); 
       speed = parseSpeed(nmeaParts[7]); 
       angle = parseAngle(nmeaParts[8]); 

       // remove marker on "old" position 
       if (mMarkerPosition != null) { 
        mMarkerPosition.remove(); 
       } 

       MarkerOptions positionMarkerOptions; 

       if (speed > 0) { 
        positionMarkerOptions = new MarkerOptions() 
          .position(new LatLng(latitude, longitude)) 
          .icon(mMarkerMoveDescriptor) 
          .anchor(0.5f, 0.5f) 
          .rotation(angle); 
       } else { 
        positionMarkerOptions = new MarkerOptions() 
          .position(new LatLng(latitude, longitude)) 
          .icon(mMarkerStopDescriptor) 
          .anchor(0.5f, 0.5f) 
          .rotation(0); 
       } 
       mMarkerPosition = mGoogleMap.addMarker(positionMarkerOptions); 
      } 
     } 

    } 

    static float parseLatitude(String lat, String sign) { 
     float latitude = Float.parseFloat(lat.substring(2))/60.0f; 
     latitude += Float.parseFloat(lat.substring(0, 2)); 
     if(sign.startsWith("S")) { 
      latitude = -latitude; 
     } 
     return latitude; 
    } 

    static float parseLongitude(String lon, String sign) { 
     float longitude = Float.parseFloat(lon.substring(3))/60.0f; 
     longitude += Float.parseFloat(lon.substring(0, 3)); 
     if(sign.startsWith("W")) { 
      longitude = -longitude; 
     } 
     return longitude; 
    } 

    static float parseSpeed(String knots) { 
     float speed; 
     try { 
      speed = Float.parseFloat(knots); 
     } catch (Exception e) { 
      speed = 0; 
     } 
     return speed; 
    } 

    static float parseAngle(String ang) { 
     float angle; 
     try { 
      angle = Float.parseFloat(ang); 
     } catch (Exception e) { 
      angle = 0; 
     } 
     return angle; 
    } 
} 

und Sie können über LocationManager.requestLocationUpdates() wie die Art und Weise Aktualisierungsintervall eingestellt:

try { 
    mLocationManager.requestLocationUpdates(
      LocationManager.GPS_PROVIDER, 
      <your_update_interval>, 
      LOCATION_DISTANCE, 
      this 
    ); 
} catch (java.lang.SecurityException ex) { 
    Log.d(TAG, "fail to request location update, ignore", ex); 
}