PGiZ4/Assets/Code/Gameplay/Level/SideMovingObstacle.cs

using UnityEngine;

namespace Code.Gameplay.Level
{
    public class SideMovingObstacle : MonoBehaviour
    {
        public float speed = 10f;
        [SerializeField] private float range = 7f;
        private bool _movingRight;

        private void Start()
        {
            _movingRight = transform.position.x < 0;
            UpdateRotation();
        }

        private void Update()
        {
            var step = speed * Time.deltaTime;
            transform.Translate(Vector3.forward * step);

            if (_movingRight && transform.position.x >= range)
            {
                _movingRight = false;
                UpdateRotation();
            }
            else if (!_movingRight && transform.position.x <= -range)
            {
                _movingRight = true;
                UpdateRotation();
            }
        }

        private void UpdateRotation()
        {
            transform.rotation = Quaternion.Euler(0, _movingRight ? 90 : -90, 0);
        }
    }
}