public class D2D_ClickToSpawn : MonoBehaviour
{
public GameObject Prefab;

protected virtual void Update()
{
if (Input.GetMouseButtonDown(0) == true && Prefab != null && Camera.main != null)
{
var ray = Camera.main.ScreenPointToRay(Input.mousePosition);
var distance = D2D_Helper.Divide(ray.origin.z, ray.direction.z);
var point = ray.origin - ray.direction * distance;

D2D_Helper.CloneGameObject(Prefab, null).transform.position = point;
}
}
}