unityで3つ以上のカメラを切りかえる

cameraswitcher.cs

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

public class kameraswich : MonoBehaviour {
 
    public List<GameObject> cameras = new List<GameObject>();
    private int nowCameraNo;
    // Use this for initialization
    void Start () {
		
	}

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown("space"))
        {
            int nextCameraNo = nowCameraNo + 1;
            if (nextCameraNo >= cameras.Count) nextCameraNo = 0;
            
                cameras[nowCameraNo].SetActive(false);
                cameras[nextCameraNo].SetActive(true);
            Debug.Log(nowCameraNo);
            nowCameraNo = nextCameraNo;
        }
    }
}