Elevator Scripts

Controller.cs

using UnityEngine;
using System.Collections;

public class Controller : MonoBehaviour {
	
	public float moveSpeed = 3.0f;

	public CharacterController myController;

	void Start () {
		myController = gameObject.GetComponent<CharacterController>();
	}

    

    public float speed = 6.0F;
    public float jumpSpeed = 8.0F;
    public float gravity = 20.0F;
    private Vector3 moveDirection = Vector3.zero;
    public bool isFlying = false;

    void FixedUpdate()
    {

        if (myController.isGrounded)
        {
            moveDirection = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
            moveDirection = transform.TransformDirection(moveDirection);
            moveDirection *= speed;
            if (Input.GetButton("Jump"))
            {
                moveDirection.y = jumpSpeed;
                Debug.Log("Jump");
            }
           
            if (Input.GetKeyDown(KeyCode.Tab))
            {
                isFlying = !isFlying;
                
            }
        }
        moveDirection.y -= gravity * Time.fixedDeltaTime;
        Debug.Log(moveDirection.ToString());
        
        myController.Move(moveDirection * Time.fixedDeltaTime);

    }

}

ElevatorScript.cs

using UnityEngine;
using System.Collections;

public class ElevatorScript : MonoBehaviour
{ 

    [SerializeField]
    Transform platform;

    [SerializeField]
    Transform startTransform;

    [SerializeField]
    Transform endTransform;

    [SerializeField]
    float platformSpeed;

    Vector3 direction;
    Transform destination;

    void Start()
    {
        SetDestination(startTransform);
    }

    void OnDrawGizmos()
    {
        Gizmos.color = Color.green;
        Gizmos.DrawWireCube(startTransform.position, platform.localScale);

        Gizmos.color = Color.red;
        Gizmos.DrawWireCube(endTransform.position, platform.localScale);
    }

    void FixedUpdate()
    {
        // Normalized Vector pointing at target!

        platform.GetComponent<Rigidbody>().MovePosition(platform.position + direction * platformSpeed * Time.fixedDeltaTime);

        if (Vector3.Distance(platform.position, destination.position) < platformSpeed * Time.fixedDeltaTime)
        {
            SetDestination(destination == startTransform ? endTransform : startTransform);
        }
    }

    void SetDestination(Transform dest)
    {
        destination = dest;
        direction = (destination.position - platform.position).normalized;
    }
}