複数カメラ切り替えマン

MultiCamera.cs

using UnityEngine;
using System.Collections;

public class MultiCamera : MonoBehaviour
{
    public Camera[] cameras;

    public KeyCode switchKey;
    private int current = 0;

    public bool isAutoFind;

    void Start()
    {
        if(isAutoFind) cameras = FindObjectsOfType<Camera>();
        Activate();
    }

    void Update ()
    {
        if(Input.GetKeyDown(switchKey)){
            current = (current >= cameras.Length - 1) ? 0 : current + 1;
            Activate();
        }
    }

    private void Activate()
    {
        for(int i = 0;i < cameras.Length; i++)
        {
            bool isActive = (i == current);
            cameras[i].gameObject.SetActive(isActive);
        }
    }
}