Untitled

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class TrackWaypoint : MonoBehaviour
{
    // AI car
    public Collider[] aiCars;

    // waypoints
    public Transform[] waypoints;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        MoveToNextWaypoint();

    }

    private void OnTriggerEnter(Collider aiCars)
    {
        if (aiCars.gameObject.tag == "AICar")
        {
            MoveToNextWaypoint();
        }
    }

    public void MoveToNextWaypoint()
    {
        foreach (Collider aiCarColliders in aiCars)
        {
            if (aiCarColliders.transform.position == waypoints[0].transform.position)
            {
                aiCarColliders.transform.position = waypoints[1].transform.position;
            }

            if (aiCarColliders.transform.position == waypoints[1].transform.position)
            {
                aiCarColliders.transform.position = waypoints[2].transform.position;
            }
        }
    }
}