grounded setting

private void OnCollisionEnter2D(Collision2D collision)
    {
        if (collision.gameObject.layer == 8){
            grounded = true;
        }

    }

    private void OnCollisionExit2D(Collision2D collision)
    {
        if (collision.gameObject.layer == 8)
        {
            grounded = false;
        }
    }