public string grabButton;
public GameObject handModel;
public bool canClimb = false;
public bool isClimbing = false;
private bool holding;


    void FixedUpdate()
    {
        if (!holding && Input.GetAxisRaw(grabButton) > 0)
        {
            Pickup();
        }

        if (holding && Input.GetAxis(grabButton) < 1 || isSolid == true && Input.GetAxis(grabButton) < 1)
        {
            Drop();
        }

        if (!holding && Input.GetAxisRaw(grabButton) > 0 && canClimb == true)
        {
            player.transform.position += (prevPos - handModel.transform.localPosition);
            isClimbing = true;
            player.GetComponent<CharacterController>().enabled = false;
        }
        else
        {
            isClimbing = false;
            player.GetComponent<CharacterController>().enabled = true;
        }

        prevPos = handModel.transform.localPosition;



    }