detect cube face based on a random number

Questions & Answers
1

I’ve created a random number between 1 to 6. How can I show a cube side based on generated number.
Actually this is a 3D dice but I want to generate dice value before tossing dice.
Any Idea would help me.
thanks.

2

I found a solution but I am not sure this is the best.

First I’ve added a tiny sphere for each side of my dice add turn off mesh renderer to disappear that.

159629-screenshot-2.png
159629-screenshot-2.png1145×635 109 KB

then add this script to generate random number and rotate the dice according to generated dice value.

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

public class Dice2 : MonoBehaviour
{
    private Rigidbody rigidbody;
    private Vector3 initPosition;
    private Transform theDice;
    void Start()
    {
        rigidbody = GetComponent<Rigidbody>();
        initPosition = transform.position;
        rigidbody.useGravity = false;
        theDice = this.transform;
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            RollTheDice();
        }
        else if (Input.GetKeyDown(KeyCode.Backspace))
        {
            ResetTheDice();
        }

    }

    private void RollTheDice()
    {
        int diceValue = UnityEngine.Random.Range(1, 7);
        Debug.Log(diceValue);
        switch (diceValue)
        {
            case 1:
                theDice.localRotation = Quaternion.Euler(180, 0, 0);
                break;
            case 2:
                theDice.localRotation = Quaternion.Euler(-90, 0, 0);
                break;
            case 3:
                theDice.localRotation = Quaternion.Euler(0, 0, 0);
                break;
            case 4:
                theDice.localRotation = Quaternion.Euler(90, 0, 0);
                break;
            case 5:
                theDice.localRotation = Quaternion.Euler(0, 0, 90);
                break;
            case 6:
                theDice.localRotation = Quaternion.Euler(0, 0, -90);
                break;
            default:
                theDice.localRotation = Quaternion.Euler(45, 45, 45);
                break;
        }
        rigidbody.useGravity = true;
    }

    private void ResetTheDice()
    {
        this.transform.position = initPosition;
        rigidbody.useGravity = false;
    }
}