map2.cs

private Image _mapImage;

private Vector3 _mapPos = Vector3.zero;
private Vector3 _elemPos = Vector3.zero;

void Update()
{
  _mapPos.x = _player.transform.position.x;
  _mapPos.y = _player.transform.position.z;
  _mapImage.rectTransform.localPosition = -_mapPos;
  foreach (var o in _images.Keys)
  {
      _elemPos.x = o.position.x;
      _elemPos.y = o.position.z;
      _images[o].localPosition = _elemPos;
  }
}