private Enemy GetEnemy()
    {
        if (Input.GetMouseButtonDown(0))
        {
            var ray = Camera.main.ScreenPointToRay(new Vector3(Input.mousePosition.x, Input.mousePosition.y, 1));

            var hit = Physics2D.Raycast(ray.origin, ray.direction);

            if (hit)
            {
                return hit.collider.GetComponent<Enemy>();
            }
        }
        return null;
    }