Spawnmanager changes for big laser

spawnmanager.cs

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

public class SpawnManager : MonoBehaviour
{

    [SerializeField]
    private int _bigLaserCount;
    private float _randomNumber;
    private int _randomPowerup;
    

    IEnumerator SpawnPowerupRoutine()
    {
        //every 3 - 7 seconds, spawn in a powerup
        while (_stopSpawning == false) {

            _randomPowerup = Random.Range(0, 6);
            _randomNumber = Random.Range(-8f, 8f);
            Vector3 spawn = new Vector3(_randomNumber, 7, 0);            
            
            if (_bigLaserCount == 3)
            {
                Instantiate(_powerups[5], spawn, Quaternion.identity);
                _bigLaserCount = 0;

            }
            else
            {
                _randomPowerup = Random.Range(0, 5);
                Instantiate(_powerups[_randomPowerup], spawn, Quaternion.identity);
                _bigLaserCount++;
            }


            yield return new WaitForSeconds(Random.Range(3, 8));
        }
    }

}