Vector2 toPlayer = player.position - transform.position;

        float angle = Vector2.Angle(Vector2.down, toPlayer);

        float targetZ;

        if (angle <= maxAngle)
        {
            targetZ = Mathf.Atan2(toPlayer.y, toPlayer.x) * Mathf.Rad2Deg - 90f;
        }
        else
        {
            targetZ = -90f; // t'inverse quand ta spider est dans l'autre sens
        }

        float newZ = Mathf.MoveTowardsAngle(
            transform.eulerAngles.z,
            targetZ,
            rotationSpeed * Time.deltaTime
        );

        transform.rotation = Quaternion.Euler(0f, 0f, newZ);