如何让精灵向下翻转而不是向上翻转？

这是我的代码，我想让sprite在旋转到下方时翻转，而不是像视频中那样旋转倒立。有没有什么想法?

using System.Collections;
using Unity.VisualScripting;
using UnityEngine;

public class FishAI_MB : MonoBehaviour
{
    FishAIController_MB fishAIController;

    public int currentTarget;

    public int swimDecision;

    void Start()
    {
        fishAIController = Object.FindObjectOfType<FishAIController_MB>();
        if (fishAIController == null)
        {
            Debug.Log("鱼是空的");
        }
        StartCoroutine(StartSwimDecicion());
    }

    IEnumerator StartSwimDecicion()
    {
        Debug.Log("开始游泳决策");
        swimDecision = Random.Range(0, 2);

        if (swimDecision == 0)
        {
            StartCoroutine(SwimToTarget());
        }
        else if (swimDecision == 1)
        {
            StartCoroutine(Wait());

        }
        yield return null;
    }

    IEnumerator SwimToTarget()
    {
        Debug.Log("游向目标");
        currentTarget = Random.Range(0, fishAIController.targets.Length);
        while (Vector2.Distance(transform.position, fishAIController.targets[currentTarget].transform.position) > 0.1f)
        {
            transform.position = Vector2.MoveTowards(transform.position, fishAIController.targets[currentTarget].transform.position, 1f * Time.deltaTime);
            transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(Vector3.forward, fishAIController.targets[currentTarget].transform.position - transform.position), 1f * Time.deltaTime);
            if (transform.eulerAngles.x > 90f)
            {
                transform.localScale = new Vector3(-1f, 1f, 1f);
            }
            yield return null;
        }
        StartCoroutine(StartSwimDecicion());
        yield return null;
    }

    IEnumerator Wait()
    {
        Debug.Log("等待");
        yield return new WaitForSeconds(1);
        StartCoroutine(StartSwimDecicion());
    }
}