/*     INFINITY CODE 2013-2016      */
/*   http://www.infinity-code.com   */

using System;
using UnityEngine;

namespace InfinityCode.OnlineMapsExamples
{
    [AddComponentMenu("Infinity Code/Online Maps/Examples (API Usage)/Marker_GPS_Example")]
    public class Marker_GPS_Smooth_Example : MonoBehaviour
    {
        public float smoothTime = 0.3f;

        // Marker, which should display the location.
        private OnlineMapsMarker playerMarker;
        private float rotation;
        private float velocity;

        private void Start()
        {
            // Create a new marker.
            playerMarker = OnlineMaps.instance.AddMarker(new Vector2(0, 0), null, "Player");

            // Get instance of LocationService.
            OnlineMapsLocationService locationService = OnlineMapsLocationService.instance;

            if (locationService == null)
            {
                Debug.LogError("Location Service not found.\nAdd Location Service Component (Component / Infinity Code / Online Maps / Plugins / Location Service).");
                return;
            }

            // Subscribe to the change location event.
            locationService.OnLocationChanged += OnLocationChanged;
            locationService.OnCompassChanged += OnCompassChanged;
        }

        private void OnCompassChanged(float f)
        {
            rotation = f;
        }

        // When the location has changed
        private void OnLocationChanged(Vector2 position)
        {
            // Change the position of the marker.
            playerMarker.position = position;

            // Redraw map.
            OnlineMaps.instance.Redraw();
        }

        private void Update()
        {
            if (Mathf.Abs(playerMarker.rotation - rotation) > 0.01f)
            {
                float r = Mathf.SmoothDampAngle(playerMarker.rotation * 360, rotation * 360, ref velocity, smoothTime);
                playerMarker.rotation = r / 360;
                OnlineMaps.instance.Redraw();
            }
        }
    }
}