using UnityEngine;

public class MarkerScaleByZoomExample:MonoBehaviour
{
    /// <summary>
    /// Zoom, when the scale = 1.
    /// </summary>
    public int defaultZoom = 15;

    /// <summary>
    /// Instance of marker.
    /// </summary>
    private OnlineMapsMarkerBase marker;

    /// <summary>
    /// Init.
    /// </summary>
    private void Start()
    {
        // Create a new marker.
        marker = OnlineMaps.instance.AddMarker(new Vector2(15, 15));

        // Subscribe to change zoom.
        OnlineMaps.instance.OnChangeZoom += OnChangeZoom;

        // Initial rescale marker.
        OnChangeZoom();
    }

    /// <summary>
    /// On change zoom.
    /// </summary>
    private void OnChangeZoom()
    {
        float originalScale = 1 << defaultZoom;
        float currentScale = 1 << OnlineMaps.instance.zoom;

        marker.scale = currentScale / originalScale;
    }
}