Скрипт для врага

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

public class Movespike : MonoBehaviour
{
public float speed;

public float timer = 0;
public float moveDuration = 2;
public Vector2 direction = Vector2.left;


void Start()
{

}

void Update()
{
transform.Translate(direction * speed * Time.deltaTime);

timer = timer + Time.deltaTime;

if (timer >= moveDuration)
{
direction = direction * -1;
timer = 0;
}
}
}