how to use GameObject only once from array with random

Question

my try with JavaScript :

var cards : GameObject[]; // 16 cards

Instantiate(cards[Random.Range(0, cards.length)].gameObject, transform.position, transform.rotation);

Answer 1

Best Answer

Answer by Jessy · Feb 25, 2011 at 12:18 PM

Is it okay to take the Game Objects out of the collection? If so, just make a List of them and remove them from the List:

import System.Collections.Generic;

var cards : List.<GameObject>; // 16 cards ONLY to start with

function ChooseCard () { if (cards.Count == 0) return;

 var index = Random.Range(0, cards.Count);
 Instantiate(cards[index], transform.position, transform.rotation);
 cards.RemoveAt(index);

}

Otherwise, you can make a List of the indices, instead:

import System.Collections.Generic;

var cardIndeces : List.<int>;

function Start () { cardIndeces = new List.<int>(new int[16]); for (var i = 0; i < 16; ++i) cardIndeces[i] = i; }

function ChooseCard () { if (cardIndeces.Count == 0) return;

 var index = Random.Range(0, cardIndeces.Count);
 Instantiate(cards[index], transform.position, transform.rotation);
 cardIndeces.RemoveAt(index);

}

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cacysunlee · Feb 25, 2011 at 01:31 PM 0

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List of the indices is my solution, thank you very much ! :)