package oving2;

import java.util.Random;

public class CardDeck {
	public Card[] cards;
	
	public CardDeck() {
		cards = new Card[52];
	}
	
	public void buildDeck() {
		String[] suits = new String[] {"S","H","D","C"};
		int a=0;
		
		for (int i = 0; i<suits.length; i++) {
			for (int j = 1; j<=13; j++) {
				
				Card c = new Card();
				c.face = j;
				c.suit = suits[i];
				
				cards[a] = c;
				a++;
			}
		}
	}
	
	public Card getCard(int i) {
		return cards[i];
	}
	
	public void shuffle() {
		Random g = new Random();
		Card[] shuffled = new Card[52];
		
		for (int i = 0; i<52; i++) {
			// int r = (int)(Math.random()*(52-i));	
			int r = g.nextInt(52-i);				// Hvorfor -i ???
			Card tempCard = cards[r];
			shuffled[i] = tempCard;
			cards[r] = cards[52-i-1];				// Hva gjør denne??
		}
		
		cards = shuffled;
	}

	public int cardsDealt = 0;
	
	public Card[] deal(int n) {
		if (cardsDealt + n > 52) return new Card[0];
		
		Card[] tempDeck = new Card[n];
		for (int i = 0; i < n; i++) {
			tempDeck[i] = cards[cardsDealt];
			cards[cardsDealt] = null;					// Vi må fjerne kortet fra decken cards, men får NullPointerException når vi gjør det.
			cardsDealt++;
		}
		return tempDeck;
	}
	
	public int getCardCount() {
		return 52 - cardsDealt;
	}

}