【Unity】配列のシャッフル

ArrayShuffleTest.cs

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

public class ArrayShuffleTest : MonoBehaviour {

	public GameObject[] Object;

	void Start () {
		
	}

	void Update () {

		//test
		if (Input.GetKey (KeyCode.A)) 
		{
			ObjectShuffle ();
		}
		//test
		if (Input.GetKey (KeyCode.B)) 
		{
			Object = ArrayShuffle (Object);
		}
	}

	public void ObjectShuffle(){
		for (int i = 0; i < Object.Length; i++) {
			GameObject tmp = Object [i];
			int randomIndex = Random.Range(i, Object.Length);
			Object[i] = Object[randomIndex];
			Object[randomIndex] = tmp;
		}
	}

	//引数ありバージョン
	public  GameObject[] ArrayShuffle(GameObject[] array)
	{
		int length = array.Length;
		GameObject[] result = new GameObject[length];
		array.CopyTo (result, 0);

		for (int i = 0; i < length; i++) 
		{
			GameObject tmp = result [i];
			int randomIndex = Random.Range(i, length);
			result[i] = result[randomIndex];
			result[randomIndex] = tmp;
		}

		return result;
	}
}