Scriptum/Assets/Animations/Fire/Fire.cs

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

public class Fire : MonoBehaviour
{
    private float range = 0;
    float minFlickerIntensity  = 0.5f;
    float maxFlickerIntensity  = 1.0f;
    float flickerSpeed = 4.9f;
    private HardLight2D firelight;
    private HardLight2D[] lights;
    private GameObject fire;
    private int randomizer = 0;

    // Start is called before the first frame update
    void Start()
    {
        
        lights = FindObjectsOfType<HardLight2D>();
        List<HardLight2D> finalList = new List<HardLight2D>();
        string nameToLookFor = "LightFire";

        for(var i = 0; i < lights.Length; i++)
        {
            if(lights[i].name == nameToLookFor)
            {
                finalList.Add(lights[i]);
            }
        }
        firelight = finalList[0];

        //firelight = FindObjectOfType<HardLight2D>();
        StartCoroutine( ChangeRange());
    }

    // Update is called once per frame
    void Update()
    {
        StartCoroutine( ChangeRange());
    }
    
    IEnumerator ChangeRange()
    {
        if (randomizer == 0) {
            firelight.Intensity = (Random.Range (minFlickerIntensity, maxFlickerIntensity));
        }
        else  firelight.Intensity = (Random.Range (minFlickerIntensity, maxFlickerIntensity));
 
        randomizer = Random.Range (0, 1);
        yield return new WaitForSeconds(flickerSpeed);
    }
}