OnBecameInvisible won't destroy objects in game view, only scene view even if scene view is removed or hidden.

Questions & Answers
1

Hopefully I am missing something obvious here, but I have looked up other topics with the same issue and followed the steps and its not working for me.

I am making an endless running type game where objects spawn infinitely as the player progresses and I am trying to destroy the objects when they leave the camera so it doesn’t build up unnecessary objects. I am using OnBecameInvisible to do so however the objects won’t be deleted after becoming invisible in the game view. I have removed the scene view because I know that causes issues with it as well as making sure that my prefabs have a mesh renderer so OnBecameInvisible will work. In game view the camera follows the player. The objects only delete if I have screen view on and scroll with it manually.

One other thing, I am using the cinemachine camera. I don’t know if this is causing issues with it or not but as far as I know the main camera follows the cinemachine camera when its locked on the player so it shouldn’t be but again I’m not sure.

In the code on with Destroy(), I have used gameObject and levelPart1 as well as trying to do an entirely separate script attached to the prefab. Any ideas?

Here is the code:

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

public class LevelSpawn : MonoBehaviour
{
    private const float PLAYER_DISTANCE_SPAWN_LEVEL_PART = 200f;
    [SerializeField] private Transform levelPartStart;
    [SerializeField] private Transform levelPart1;
    [SerializeField] private Transform player;

    private Vector3 lastEndPosition;

    private void Awake()
    {
        lastEndPosition = levelPartStart.Find("EndPosition").position;
        SpawnLevelPart();
        int startingLevelParts = 5;
        for (int i = 0; i < startingLevelParts; i++)
        {
            SpawnLevelPart();
        }
    }
    
    private void Update()
    {
        if (Vector3.Distance(player.position, lastEndPosition) < PLAYER_DISTANCE_SPAWN_LEVEL_PART){
            SpawnLevelPart();
        }

    }

    private void SpawnLevelPart()
    {
        Transform lastLevelPartTransform = SpawnLevelPart(lastEndPosition);
        lastEndPosition = lastLevelPartTransform.Find("EndPosition").position;
    }

    private Transform SpawnLevelPart(Vector3 spawnPosition)
    {
        Transform levelPartTransfrom = Instantiate(levelPart1, spawnPosition, Quaternion.identity);
        return levelPartTransfrom;
    }

    void OnBecameInvisible()
    {
        Destroy(levelPart1);
    }
}
2

I made a separate script with a work around I can attach to each prefab since the above code doesn’t work properly, but if anyone knows why that won’t work for me I’d love to know. I can’t wrap my head around what’s wrong.

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

public class Destroy : MonoBehaviour
{
    public float maxDistance = 20f;
    private GameObject player;

    void Start()
    {
        player = GameObject.Find("Player");
    }

    void Update()
    {
        
        if (transform.position.x < player.transform.position.x - maxDistance)
        {
            Destroy(gameObject);
        }
    }

}