Создание рандомных объектов

public GameObject five,four,three,two;
void Start () {
        
        StartCoroutine (Spawn());
    }
    IEnumerator Spawn () {      
            yield return new WaitForSeconds (2f);
            while (enabled) {
            Instantiate (Random.Range(five,four,three,two), new Vector2 (8.8f, Random.Range (1.1f, 1.9f)), Quaternion.identity);
                yield return new WaitForSeconds (0.5f);

public GameObject[] Sphere;
    public GameObject Cub;
    public Vector3 spawnValues;
    public float spawnWait;
    public float spawnMostWait;
    public float spawnLeastWait;
    public float startWait;
    public bool stop;
    public int a;
    int randSphere;
 
    void Start()
    {
        StartCoroutine(waitSpawner());
 
    }
    void Update()
    {
        spawnWait = Random.Range(spawnLeastWait, spawnMostWait);
    }
 
    IEnumerator waitSpawner()
    {
        yield return new WaitForSeconds(startWait);
 
        while (Cub != null)
        {
            randSphere = Random.Range(0, 1);
 
            Vector3 spawnPosition = new Vector3(Random.Range(-spawnValues.x, spawnValues.x), 1, Random.Range(-spawnValues.y, spawnValues.y));
 
            Instantiate(Sphere[randSphere], spawnPosition + transform.TransformPoint(0, 0, 0), gameObject.transform.rotation);
 
            yield return new WaitForSeconds(spawnWait);
        }
    }