TrafficRoad/Assets/BuildSystem/Scripts/CarController.cs

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

namespace BuildSystem
{
    public class CarController : MonoSingleton<CarController>
    {
        public List<Vector2Int> birth = new List<Vector2Int>();
        public GameObject[] carPrefabs;
        public int carNumber;
        int number = 0;
        void Start()
        {
            birth.Add(new Vector2Int(0 , 2));
            birth.Add(new Vector2Int(10, 0));
            birth.Add(new Vector2Int(3, 7));
            birth.Add(new Vector2Int(13, 5));
            StartCreateCar();
        }

        public void StartCreateCar() {
            StartCoroutine(CreateCar());
        }

        IEnumerator CreateCar() {
            while (true) {
                yield return new WaitUntil(() => { return number < carNumber; });
                yield return new WaitForSeconds(Random.Range(2, 4));
                number++;
                GameObject car = Instantiate(carPrefabs[Random.Range(0, carPrefabs.Length)],transform);
                car.GetComponent<Car>().OpenMove(birth[Random.Range(0, birth.Count)],10*Random.Range(4,8));
            }
        }
    }
}