How to remove inversion when tracking the cursor?

Question

Unity

I have a character in the game, a weapon.
When the character looks to the right, then the weapon is normal behind him,
but when the character flips to the left, the weapon takes on an inversion
, that is, the cursor is on the top right, and the weapon is on the bottom left
https://youtu.be/ x2lAk6f3sW0

Answer 1

GGWPKATASI , I'll explain again. When you rotate a character, you only rotate the character. The weapon sprite is still rotated where it was rotated. You need the weapon to flip too. Now I will show an example.
There is a player script.

using UnityEngine;

namespace Assets.Scripts.Rotation
{
    [RequireComponent(typeof(Rigidbody2D))] // Нужен, чтобы компонент Rigidbody2D всегда был на объекте, к которому прикреплен данный скрипт
    public class Player : MonoBehaviour
    {
        [SerializeField] private float _maxSpeed; //[SerializeField] позволяет видеть private поля в инспекторе
        [SerializeField] private float _speed;
        [Range(0f, 1f)]
        [SerializeField] private float _slowDownSpeed; //Range ограничивает между 0 и 1 в данном случае
        [SerializeField] private Gun _gun;

        private Vector2 _movementDirection;
        private Rigidbody2D _rb;

        private void Start()
        {
            _rb = GetComponent<Rigidbody2D>(); // Получаем компонент, если получаете компонент таким образом, обязательно нужно делать [RequireComponent(typeof(НазваниеКомпонента))]
        }

        private void Update()
        {
            var horizontal = Input.GetAxis("Horizontal");
            var vertical = Input.GetAxis("Vertical");
            _movementDirection = new Vector2(horizontal, vertical);
        }

        private void FixedUpdate() // все действия с физикой в FixedUpdate
        {
            if (_movementDirection == Vector2.zero) SlowDown(_slowDownSpeed);
            Move(_movementDirection, _speed);
            Flip();
        }

        private void Flip()
        {
            var vector = Camera.main.ScreenToWorldPoint(Input.mousePosition) - transform.position; //берем вектор направления от нашей позиции до позиции мыши в мировых координатах
            if (vector.x < 0) transform.eulerAngles = new Vector3(0, 180); // Если он левее, то поворачиваем объект налево
            if (vector.x >= 0) transform.eulerAngles = new Vector2(0, 0);// или направо, если он правее
            _gun.Flip(vector.x);// поворачиваем оружие
        }

        private void Move(Vector2 direction, float speed)
        {
            var velocity = _rb.velocity;
            var x = velocity.x + direction.x * speed;// определяем новую скорость
            var y = velocity.y + direction.y * speed;
            velocity.x = Mathf.Clamp(x, -_maxSpeed, _maxSpeed); //ограничиваем скорость
            velocity.y = Mathf.Clamp(y, -_maxSpeed, _maxSpeed);
            _rb.velocity = velocity; // присваиваем скорость
        }

        private void SlowDown(float speed) // замедляем объект
        {
            var velocity = _rb.velocity;
            velocity.x = Mathf.Lerp(velocity.x, 0, speed);
            velocity.y = Mathf.Lerp(_rb.velocity.y, 0, speed);
            _rb.velocity = velocity;
        }
    }
}

And weapons:

using UnityEngine;

namespace Assets.Scripts.Rotation
{
    [RequireComponent(typeof(SpriteRenderer))]
    public class Gun : MonoBehaviour
    {
        private SpriteRenderer _spriteRenderer;

        private void Start()
        {
            _spriteRenderer = GetComponent<SpriteRenderer>();
        }

        private void Update()
        {
            var difference = Camera.main.ScreenToWorldPoint(Input.mousePosition) - transform.position;
            var rotation = Mathf.Atan2(difference.y, difference.x) * Mathf.Rad2Deg;
            transform.rotation = Quaternion.Euler(0f, 0f, rotation); // ваш код поворота оружия
        }

        public void Flip(float direction)
        {
            _spriteRenderer.flipY = direction < 0; // отражаем спрайт по оси Y в зависимости от того, куда смотрит персонаж
        }

    }
}

So. Player. Moves, looks towards the mouse.
Weapon. Looks at the mouse.
You can test and see how it works.
The main thing for the Player in the Rigidbody2D component is to set the gravity scale to 0.
All this works if the player's sprite initially looks to the right, the weapon sprite looks to the right.
Like this:
Mega brief explanation in pictures:
Initially, the weapon faces there -
But when we rotate the character, it also rotates like this -
Accordingly, you need to flip the image along Y to align it -