using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Photon.Pun;

public class ShotTrigger : MonoBehaviourPunCallbacks
{
    // ★改良
    public GameObject[] shotAnchors;

    void Update()
    {
        if(photonView.IsMine)
        {
            if (Input.GetMouseButtonDown(0))
            {
                // ★改良
                // ６個のshotAnchorの場所にトリガーを生成する。
                foreach(GameObject anchor in shotAnchors)
                {
                    StartCoroutine(Trigger(anchor));
                }
            }
        }
    }

    private IEnumerator Trigger(GameObject point) // ★改良
    {
        // ★改良
        GameObject trigger = PhotonNetwork.Instantiate("AsteroidX", point.transform.position, Camera.main.transform.rotation);

        yield return new WaitForSeconds(5f);

        if(trigger)
        {
            PhotonNetwork.Destroy(trigger.gameObject);
        }
    }
}
C#