C# Okey oyununda okey taşı ele alınamıyor

public class Block : MonoBehaviour

{
    public string type = "";
    public string number = "";
    public bool isJoker = false;
    SpriteRenderer spriteRenderer;
    // Start is called before the first frame update
    void Start()
    {
        spriteRenderer = GetComponent<SpriteRenderer>();
    }

    // Update is called once per frame
    void Update()
    {
        this.transform.position= Camera.main.ScreenPointToRay(Input.mousePosition).GetPoint(5);
    }
    public void setEmptyBlockSprite(Sprite sprite)
    {
        spriteRenderer.sprite = sprite;
        type = sprite.name.Split('_')[0];
        number = sprite.name.Split('_')[1];
    }
}