Basic ManagedBehaviour Use

gistfile1.txt

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

public class DeckManager : ManagedBehaviour<DeckManager>
{
    public Stack<CardData> _deck;
    public GameObject prefab;

    public Card Draw()
    {
        var obj = Instantiate(prefab, new Vector3(1000f, 1000f, 0f), Quaternion.identity);
        var card = obj.GetComponent<Card>();
        var data = _deck.Pop();
        card.Init(data.suit, data.cardNum);
        return card;
    }

    public override void Init()
    {
        _deck = new Stack<CardData>();
        char[] suits = { 'C', 'H', 'S', 'D' };

        foreach (var suit in suits)
        {
            for (int i = 1; i <= 13; i++)
            {
                _deck.Push(new CardData(suit, i));
            }
        }
        _deck = new Stack<CardData>(_deck.Shuffle());
    }
}