// author: Neitri
// license: Public Domain

ItemComponent GetItemClosestToScreenPoint(Vector3 screenPoint)
{
    RaycastHit hit;
    int circleRadius = 0;
    int countOfRaysOnCircle = 1;
    while (circleRadius < 50)
    {
        for (int i = 0; i < countOfRaysOnCircle; i++)
        {
            var offset = new Vector3(Mathf.Sin(Mathf.PI * 2 / countOfRaysOnCircle * i), Mathf.Cos(Mathf.PI * 2 / countOfRaysOnCircle * i), 0) * circleRadius;
            var ray = Camera.Main.ScreenPointToRay(screenPoint + offset);
            if (Physics.Raycast(ray, out hit, 10000))
            {
                var item = hit.transform.root.GetComponentInChildren<ItemComponent>();
                if (item)
                    return item;
            }
        }
        circleRadius += 3;
        countOfRaysOnCircle += 2;
    }
    return null;
}