Кто-то может код улучшить для монстра, который ходит влево вправо циклично.(Unity)

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

public class WalkingMonster: Entity
{
private float speed = 1f;
private Vector3 dir;
private SpriteRenderer sprite;
private void Start()
{
dir = transform.right;
}
private void Update()
{
Move();
}
private void Move()
{
Collider2D[] colliders = Physics2D.OverlapCircleAll(transform.position + transform.up * 0.1f + transform.right * dir.x * 0.7f, 0.1f);
if (colliders.Length > 0) dir *= -1f;
transform.position = Vector3.MoveTowards(transform.position, transform.position + dir, speed * Time.deltaTime);
}
private void OnCollisionEnter2D(Collision2D collision)
{
if (collision.gameObject == hero.Instance.gameObject)
{
hero.Instance.GetDamage();
}
}
}