help with goal detection system,Goal detection systems not working

I have been trying to make a detection system for the game “pong”. But i can’t seem to find any way to detect if a goal has been scored
I have used tried two scripts both of which don’t work
The first one is:

       public GameObject Ball; //assigning object
        private float position; 
        void Start()
            position = Ball.transform.position.x;
            //gets the pos of x
        void FixedUpdate()
            if (position > 20 ||
                position < -20) //checks if it's out of bounds

The other one is the one i prefer works because it has a scoreboard with it, and i’m still a begginer so i don’t know how to use scoreboards.

       private int Player1Score;
        private int Player2Score;
        public void Player1Scored()
            Player1Text.GetComponent<TextMeshProUGUI>().text = Player1Score.ToString();
        public void Player2Scored()
            Player2Text.GetComponent<TextMeshProUGUI>().text = Player2Score.ToString();

Please help me i’ve been working on this for hours now

So, with your first script, the variable “position” is only being set at the beginning of the game. As a result, the variable “position” is never going to change, regardless of where the ball goes. What you need to do is move the line “position = Ball.transform.position.x;” to the beginning of the FixedUpdate method.

As for the second script, everything looks fine, except that (as far as I can tell) you’re not calling the Player1Scored() or the Player2Scored() methods when one of the players scores.