Project_WL/Assets/Script/Ingame/NoSeeLongDMob.cs

using System.Collections.Generic;
using UnityEngine;

public class NoSeeLongDMob : MyCoroutine
{
    List<Renderer> list_Renderer = new List<Renderer>();
    float dist = 80f;

    private void Start()
    {
        list_Renderer.AddRange(GetComponentsInChildren<Renderer>());

        Set_Repeat_for1sec(() =>
        {
            var pos = Camera.main.transform.position;
            for (int i = 0; i < list_Renderer.Count; i++)
            {
                if (list_Renderer[i].enabled && Vector3.Distance(pos, list_Renderer[i].transform.position) > dist)
                    list_Renderer[i].enabled = false;
                else if (!list_Renderer[i].enabled && Vector3.Distance(pos, list_Renderer[i].transform.position) <= dist)
                    list_Renderer[i].enabled = true;
            }
        });
    }

    public bool IsNoSeeMob()
    {
        return !list_Renderer[0].enabled;
    }
}