using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System;
public class UpdateGPSLocation : MonoBehaviour {
public ViewHandler v;
public Text debugText;
LocationInfo myGPSLocation;
float fiveSecondCounter = 0.0f;
public string LocationName;
double MyLatitude, MyLongtitude;
DistUnit unit;
/**
* Latitude - 경도, Longtitude - 위도
*/
public double TargetLatitude, TargetLongtitude; // 37.507839, 127.039864
IEnumerator Start () {
debugText.text += "Starting the GPS Script\n";
#if UNITY_ANROID
Input.compass.enabled = true;
#endif
return InitializeGPSServices ();
}
IEnumerator InitializeGPSServices () {
// First, check if user has location service enabled
if (!Input.location.isEnabledByUser) {
debugText.text += "GPS disabled by user\n";
yield break;
}
// Start service before querying location
Input.location.Start (0.1f, 0.1f);
// Wait until service initializes
int maxWait = 20;
while (Input.location.status == LocationServiceStatus.Initializing && maxWait > 0) {
yield return new WaitForSeconds (1);
maxWait--;
}
// Service didn't initialize in 20 seconds
if (maxWait < 1) {
debugText.text += "Timed out\n";
yield break;
}
}
void Update () {
fiveSecondCounter += Time.deltaTime;
if (fiveSecondCounter > 1.0) {
UpdateGPS ();
fiveSecondCounter = 0.0f;
}
}
int updateCnt = 0;
void UpdateGPS () {
// Connection has failed
if (Input.location.status == LocationServiceStatus.Failed) {
debugText.text += "Unable to determine device location\n";
Input.location.Stop ();
Start ();
}
else {
updateCnt++;
debugText.text = "update count : " + updateCnt + "\n" + getUpdatedGPSstring ();
}
}
string getUpdatedGPSstring () {
myGPSLocation = Input.location.lastData;
MyLongtitude = Math.Round (myGPSLocation.longitude, 6);
MyLatitude = Math.Round (myGPSLocation.latitude, 6);
double DistanceToMeter;
string storeRange;
//두 점간의 거리
DistanceToMeter = distance (MyLatitude, MyLongtitude, TargetLatitude, TargetLongtitude, DistUnit.meter);
//DistanceToMeter = distance (37.507775, 127.039675, 37.507660, 127.039530, "meter"); // 20미터 이내 거리체크
if (DistanceToMeter < 20) {// 건물의 높낮이 등 환경적인 요소로 인해 오차가 발생 할 수 있음.
storeRange = "근처매장 O";
if (!v.flowAHandler.NotiOpenChk)
v.flowAHandler.OpenNoti ();
}
else {
storeRange = "근처매장 X";
}
return "\n현재위치 :\n" +
"경도 - " + Math.Round (MyLatitude, 6) + "\n" +
"위도 - " + Math.Round (MyLongtitude, 6) +
"\n\n" + "목표위치 : " + LocationName + "\n" +
"경도 - " + TargetLatitude + "\n" +
"위도 - " + TargetLongtitude +
"\n\n목표와의거리 : 약 " + DistanceToMeter + "M" + "\n" +
"-------------------------------\n\n" +
storeRange;
}
/**
* 두 지점간의 거리 계산
*
* @param lat1 지점 1 위도
* @param lon1 지점 1 경도
* @param lat2 지점 2 위도
* @param lon2 지점 2 경도
* @param unit 거리 표출단위
* @return
*/
static double distance (double lat1, double lon1, double lat2, double lon2, DistUnit unit) {
double theta = lon1 - lon2;
double dist = Math.Sin (deg2rad (lat1)) * Math.Sin (deg2rad (lat2)) + Math.Cos (deg2rad (lat1)) * Math.Cos (deg2rad (lat2)) * Math.Cos (deg2rad (theta));
dist = Math.Acos (dist);
dist = rad2deg (dist);
dist = dist * 60 * 1.1515;
if (unit == DistUnit.kilometer) {
dist = dist * 1.609344;
}
else if (unit == DistUnit.meter) {
dist = dist * 1609.344;
}
return (dist);
}
// This function converts decimal degrees to radians
static double deg2rad (double deg) {
return (deg * Math.PI / 180.0);
}
// This function converts radians to decimal degrees
static double rad2deg (double rad) {
return (rad * 180 / Math.PI);
}
}
enum DistUnit{
kilometer,
meter
}
