ModelProcessorPolyspatial.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using PolySpatial.Samples;

public class ModelProcessorPolyspatial : MonoBehaviour
{

    public Vector3 rotationAxis = new Vector3(0,42,0);

    public bool rotating = true;

    void Start()
    {
        gameObject.AddComponent<PieceSelectionBehavior>();
        PieceSelectionBehavior psb = gameObject.GetComponent<PieceSelectionBehavior>();
        psb.moveable = true;
        rotating = true;

        //TODO stop rotating if moved
        psb.PieceSelected += StopMoving;
    }

    void StopMoving(int n)
    {
        rotating = false;
    }

    void Update()
    {
        if (rotating)
        {
            transform.localRotation *= Quaternion.Euler(rotationAxis * Time.deltaTime) ;
        }
    }
     
}