FireController.cs

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

public class FireController : MonoBehaviour
{

    AnimatorStateInfo state;
    Animator animator;
    public GameObject fireEffect;

    // Start is called before the first frame update
    void Start()
    {
        animator= GetComponent<Animator>();
        animator.SetBool("start",true);
        
    }

    // Update is called once per frame
    void Update()
    {
        state = animator.GetCurrentAnimatorStateInfo(0);
        if(state.normalizedTime > 1){
            fireEffect.gameObject.SetActive(true);
        }
        
    }
}