我有一个嵌套在播放器下方的空白 Unity object。 它应该绑在精灵的前面，但不会随精灵翻转

Question

I've got my player sprite that has a blank "Front Check" object nested underneath it. The nested item is used to check if the front of the sprite is touching a wall. the problem I'm having is the Front Check object does not flip with the sprite when I move in the opposite direction. it was working fine earlier today and then out of the blue just quit. This is my first unity project and I'm just not quite sure what's missing. Any help is much appreciated. here is an image of the project and my movement script.

    using UnityEngine;

public class PlayerMovement : MonoBehaviour
{
    private Rigidbody2D rb;
    private BoxCollider2D coll;
    private SpriteRenderer sprite;
    private Animator anim;

    [SerializeField] private LayerMask jumpableGround;

    public float checkRadius;
    bool isTouchingFront;
    public Transform frontCheck;
    public float wallSlidingSpeed;
    bool wallSliding;
    bool wallJumping;
    public float xWallForce;
    public float yWallForce;
    public float wallJumpTime;

    private float dirX = 0f;
    [SerializeField] private float moveSpeed = 7f;
    [SerializeField] private float jumpForce = 14f;
    [SerializeField] private float airControl;

    private enum MovementState { idle, running, jumping, falling }

    [SerializeField] private AudioSource JumpSoundEffect;

    // Start is called before the first frame update
    private void Start()
    {
        rb = GetComponent<Rigidbody2D>();
        coll = GetComponent<BoxCollider2D>();
        sprite = GetComponent<SpriteRenderer>();
        anim = GetComponent<Animator>();
    }

    // Update is called once per frame
    private void Update()
    {
        dirX = Input.GetAxisRaw("Horizontal");

        if (dirX < 0 && IsGrounded())
        {
            rb.velocity = new Vector2(moveSpeed * -1, rb.velocity.y);
        }
        else if (dirX > 0 && IsGrounded())
        {
            rb.velocity = new Vector2(moveSpeed, rb.velocity.y);
        }
        else if (dirX == 0 && IsGrounded())
        {
            rb.velocity = new Vector2(0, rb.velocity.y);
        }
  


        if (Input.GetButtonDown("Jump") && IsGrounded())
        {
            JumpSoundEffect.Play();
            rb.velocity = new Vector2(rb.velocity.x, jumpForce);

        }



        UpdateAnimationState();
    }

    private void UpdateAnimationState()
    {
        MovementState state;

        if (dirX > 0f && IsGrounded())
        {
            state = MovementState.running;
        }
        else if (dirX < 0f && IsGrounded())
        {
            state = MovementState.running;
        }
        else
        {
            state = MovementState.idle;
        }

        if (rb.velocity.y > .1f)
        {
            state = MovementState.jumping;
        }
        else if (rb.velocity.y < -.1f)
        {
            state = MovementState.falling;
        }

        //Wall Jump
        isTouchingFront = Physics2D.OverlapCircle(frontCheck.position, checkRadius, jumpableGround);

        if (isTouchingFront == true && IsGrounded() == false && dirX != 0)
        {
            wallSliding = true;
        }
        else
        {
            wallSliding = false;
        }

        if (wallSliding)
        {
            rb.velocity = new Vector2(rb.velocity.x, Mathf.Clamp(rb.velocity.y, -wallSlidingSpeed, float.MaxValue));
        }

        if (Input.GetButtonDown("Jump") && wallSliding == true)
        {
            wallJumping = true;
            Invoke("SetWallJumpingToFalse", wallJumpTime);
        }

        if (wallJumping == true)
        {
            rb.velocity = new Vector2(xWallForce * -Input.GetAxisRaw("Horizontal"), yWallForce);
        }



        anim.SetInteger("state", (int)state);

    }

    void SetWallJumpingToFalse()
    {
        wallJumping = false;
    }

    public bool IsGrounded()
    {
        return Physics2D.BoxCast(coll.bounds.center, coll.bounds.size, 0f, Vector2.down, .1f, jumpableGround);

    }
    public void FixedUpdate()
    {
        if (dirX > 0f)
        {
            sprite.flipX = false;
        }
        else if (dirX < 0f)
        {
            sprite.flipX = true;
        }
    }


}

Answer 1

sprite.flipX only flips the rendering not the actual object scaling.

You rather want to use eg

var scale = transform.localScale;
scale.x = Mathf.Sign(dirX);
transform.localScale = scale;

Note that it needs to be UnityEngine.Mathf.Sign and not System.Math.Sign since the latter returns 0 for parameter 0 which would totally break your colliders etc. while Mathf.Sign returns only -1 or 1 .