private void Update()
    {
        if (agent.enabled == true)
        {
            float distance = 100f;
            var   pickUps  = GameObject.FindGameObjectsWithTag("Pick Up");
            for (int i = 0; i < pickUps.Length; i++)
            {
                if (pickUps[i].transform.position.y > 0)
                {
                    var   pickUp      = pickUps[i];
                    float newDistance = Vector3.Distance(pickUp.transform.position, transform.position);
                    if (newDistance < distance)
                    {
                        destinationPosition = pickUp.transform;
                        distance            = newDistance;
                    }
                }
            }

            var playerDistance = Vector3.Distance(player.transform.position, transform.position);
            if (playerDistance < distance)
            {
                if (player.getScore() > getScore())
                {
                    destinationPosition = player.transform;
                }
            }
            if (destinationPosition != null)
            {
                agent.SetDestination(destinationPosition.position);
            }
        }
    }
    // Update is called once per frame
    void Update()
    {
        bool allBelow     = true;
        var  pickUpsArray = GameObject.FindGameObjectsWithTag("Pick Up");

        foreach (GameObject pickUp in pickUpsArray)
        {
            if (pickUp.transform.position.y > 0)
            {
                allBelow = false;
            }
        }

        if (allBelow)
        {
            RollerAgent     player = GameObject.FindObjectOfType <RollerAgent>();
            EnemyController enemy  = GameObject.FindObjectOfType <EnemyController>();

            if (player.getScore() > enemy.getScore())
            {
                gameOverText.text = "You Win!";
            }
            else if (player.getScore() == enemy.getScore())
            {
                gameOverText.text = "It's a Draw!";
            }
            else
            {
                gameOverText.text = "You lost...";
            }
            //Time.timeScale = 0;
        }
        else
        {
            gameOverText.text = "";
        }
    }
 void OnCollisionEnter(Collision obj)
 {
     if (obj.gameObject.CompareTag("Player"))
     {
         player = obj.gameObject.GetComponent <RollerAgent>();
         var forceVec = -obj.gameObject.GetComponent <Rigidbody>().velocity.normalized * 250f;
         if (player.getScore() > getScore())
         {
             obj.gameObject.GetComponent <Rigidbody>().AddForce(-forceVec, ForceMode.Force);
             enemyScore++;
         }
         else
         {
             agent.enabled = false;
             var rigidbody = GetComponent <Rigidbody>();
             rigidbody.isKinematic = false;
             rigidbody.AddForce(forceVec, ForceMode.Force);
             Invoke("EnableNavMesh", 1F);
             enemyScore--;
         }
         SetEnemyScoreText();
     }
 }