RoApp/Assets/CinemachinePostProcessingV2/Samples~/Cinemachine Example Scenes/Shared/Scripts/SimpleElevator.cs

using UnityEngine;

namespace Cinemachine.Examples
{
    /// <summary>
    /// Moves transform between minY and maxY with the specified speed.
    /// </summary>
    public class SimpleElevator : MonoBehaviour
    {
        public float minY, maxY;
        public float speed;
        public bool on;

        float m_Direction = 1;

        void FixedUpdate()
        {
            if (transform.position.y < minY)
            {
                m_Direction = 1f;
            }

            if (transform.position.y > maxY)
            {
                m_Direction = -1f;
            }

            var dir = new Vector3(0, m_Direction * speed * Time.fixedDeltaTime, 0);
            transform.position += dir;
        }
    }
}