Instanciar Cubo

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class InstanciarCubo : MonoBehaviour
{

    public Button botao;
    public GameObject cubo;
    public Transform cameraJogo;

    // Use this for initialization
    void Start()
    {
        Button btn = botao.GetComponent<Button>();
        btn.onClick.AddListener(instanciarBloco);
    }

    // Update is called once per framed
    void Update()
    {

    }

    void instanciarBloco()
    {
        GameObject novoCubo = GameObject.Instantiate(cubo, cameraJogo.transform.position + cameraJogo.transform.forward*3, Quaternion.identity);
        novoCubo.AddComponent<MoverAlgo>();
    }
}