using System;
using UnityEngine;

public class TilesetWithCircle : MonoBehaviour
{
    public OnlineMaps map;
    public float radiusMeters = 100;
    public Color circleColor = Color.red;
    public float circleBorderWidth = 1;
    public Color circleBorderColor = Color.black;
    
    private OnlineMapsMarker marker;
    private OnlineMapsTileSetControl control;

    private void Start()
    {
        if (map == null) map = OnlineMaps.instance;
        control = map.control as OnlineMapsTileSetControl;
        if (control == null) throw new Exception("You must use the Tileset control.");
        
        map.OnMapUpdated += OnMapUpdated;
        marker = map.markerManager.Create(map.position);
        map.control.OnMapClick += () =>
        {
            marker.position = map.control.GetCoords();
            map.Redraw();
        };
    }

    private void OnMapUpdated()
    {
        double lng, lat;
        marker.GetPosition(out lng, out lat);
        
        Vector3 position = control.GetWorldPosition(lng, lat);
        Shader.SetGlobalVector("_CircleCenter", position);
        
        OnlineMapsUtils.GetCoordinateInDistance(lng, lat, radiusMeters / 1000, 90, out lng, out lat);
        Vector3 position2 = control.GetWorldPosition(lng, lat);
        Shader.SetGlobalFloat("_CircleRadius", Mathf.Abs((position - position2).x));
        
        Shader.SetGlobalColor("_CircleColor", circleColor);
        Shader.SetGlobalFloat("_CircleBorderWidth", circleBorderWidth);
        Shader.SetGlobalColor("_CircleBorderColor", circleBorderColor);
    }
}