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

public class SpawnZombie : MonoBehaviour {

 private Transform PlayerTransform;
 public int zombAmount, WaveNumber, waveReset, WaveIncriment, waveChecker;
 public GameObject[] points;
 public bool reset;
 
 public Text waveText;

 int pointChoice;
 private GameObject chosenSpawner;

 // Start is called before the first frame update
 void Start()
 {
     WaveIncriment = 4;
     PlayerTransform = GameObject.FindGameObjectWithTag("Player").transform;  
     StartCoroutine(CheckRadius());
     StartCoroutine(CheckWave());
     reset  = false;
 }

 void Update()
 {
     waveText.text = ("Wave" + WaveNumber);
    
 }

 private IEnumerator CheckRadius()
 {
   
     yield return new WaitForSeconds(0.5f);

     pointChoice = Random.Range(0, points.Length);
     chosenSpawner = points[pointChoice];

     foreach (GameObject spawner in points)
     {
         if (chosenSpawner)
         {
             var script = chosenSpawner.GetComponent<SpawnPoint>();

             if (PlayerTransform)
             {

                 float dist = Vector3.Distance(PlayerTransform.position, chosenSpawner.transform.position);

                 if (dist >= 40f)
                 {
                     script.hasBegun = false;
                     chosenSpawner.SetActive(false);
                 }

                 if (dist < 40f)
                 {
                     chosenSpawner.SetActive(true);
                     if (script.hasBegun == false && zombAmount < script.waveLimiter)
                     {
                         script.StartCoroutine("SpawnZombieVoid");
                     }

                     script.hasBegun = true;
                 }
             }
         }
     }

     StartCoroutine(CheckRadius());    
 }


 private IEnumerator CheckWave()
 {
     yield return new WaitForSeconds(2);

     if(waveReset <= 0)
     {
     
         if (reset == true)
         {
             WaveNumber++;
             WaveIncriment += 4;
             reset = false;
         }                 
     }
     StartCoroutine(CheckWave());
 }

  

}

======# SECOND SCRIPT

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

public class SpawnPoint : MonoBehaviour {

 private GameObject chosenZombie;
 private int zombChoice;
 public GameObject[] zombiePrefab;
 private SpawnZombie m_SpawnZombie;

 public bool hasBegun;

 public int waveLimiter;

 void Start()
 {
     m_SpawnZombie = GetComponentInParent<SpawnZombie>();
     waveLimiter = 4;
 }
 void Update()
 {
     waveLimiter = m_SpawnZombie.WaveIncriment;

 
 }

 private IEnumerator SpawnZombieVoid()
 {
     yield return new WaitForSeconds(3);
     zombChoice = Random.Range(0, zombiePrefab.Length);

     chosenZombie = zombiePrefab[zombChoice];

     if (hasBegun == true)
     {
         if (m_SpawnZombie.zombAmount <= waveLimiter && m_SpawnZombie.waveChecker <= waveLimiter && m_SpawnZombie.zombAmount < 15)
         {

             GameObject zombie;
             zombie = Instantiate(chosenZombie, transform.position, transform.rotation) as GameObject;
             m_SpawnZombie.zombAmount++;
             m_SpawnZombie.waveChecker++;
             hasBegun = false;

         }

         if (m_SpawnZombie.waveChecker == m_SpawnZombie.waveReset)
         {

             hasBegun = false;
             m_SpawnZombie.reset = true;
             m_SpawnZombie.waveReset = 0;
             m_SpawnZombie.waveChecker = 0;

         }

         hasBegun = false;
         StartCoroutine(SpawnZombieVoid());
     }
     
     
 }

}

This works perfectly if I am within range of the 5 spawn points, The moment I come out of range of one of them the random factor seems to dissappear and they spawn from only the ones that the boolean hasbegun stayed on for. Now I don't want that, I need a way of checking if a spawn point has been turned off and removing it as a factor in the calculation. But the array needs to stay as it is otherwise I'm sure it won't turn back on properly once within range again.

As I said it all works fine to an extent. If I go back into range of all 5 they restart properly and the random choice returns properly. But I want the player to be able to run to another side of the map and not have zombies only coming through one window.

Thanks for any help here It's got me this one. I've.pretty. much self taught everything else but I want this to feel better than it currently does