Unity2DProject/Assets/AnimationController.cs

using System;
using UnityEngine;

public class AnimationController : MonoBehaviour
{
    [SerializeField]
    private SpriteRenderer spriteRenderer;
    
    [SerializeField]
    private Sprite[] sprites;
    
    [SerializeField]
    private float waitTick = 1;

    private int index;

    private float currentTime;


    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        currentTime = Time.realtimeSinceStartup;
    }

    // Update is called once per frame
    void Update()
    {
        if(Time.realtimeSinceStartup - currentTime < waitTick)
            return;
        
        currentTime = Time.realtimeSinceStartup;
        
        if (index >= sprites.Length)
        {
            index = 0;
        }
        
        spriteRenderer.sprite = sprites[index++];
    }
}