using UnityEngine;

public class ChangePositionUsingGyro:MonoBehaviour
{
    public float speed = 0.1f;

    private bool allowDrag;
    private OnlineMaps map;

    private void OnGUI()
    {
        GUIStyle style = new GUIStyle(GUI.skin.button);

        allowDrag = GUI.RepeatButton(new Rect(5, 5, 100, 100), "Drag", style);

        if (GUI.Button(new Rect(5, 130, 100, 100), "+")) map.zoom++;
        if (GUI.Button(new Rect(5, 260, 100, 100), "-")) map.zoom--;

        GUI.Label(new Rect(5, Screen.height - 50, Screen.width - 10, 50), Input.gyro.rotationRate.ToString("F4"));
    }

    private void Start()
    {
        OnlineMapsControlBase.instance.allowUserControl = false;
        Input.gyro.enabled = true;
        map = OnlineMaps.instance;
    }

    private void Update()
    {
        if (!allowDrag) return;

        Vector3 rate = Input.gyro.rotationRate;

        double lng, lat;
        map.GetPosition(out lng, out lat);

        double tx, ty;
        map.projection.CoordinatesToTile(lng, lat, map.zoom, out tx, out ty);

        tx -= rate.y * speed;
        ty -= rate.x * speed;

        map.projection.TileToCoordinates(tx, ty, map.zoom, out lng, out lat);
        map.SetPosition(lng, lat);
    }
}