Deck.java :  » Game » dominion-dot-com » com » dot » dominion » domain » Android Open Source

package com.dot.dominion.domain;

import java.util.Collections;
import java.util.Stack;

public class Deck { 
  private Stack<Card> deck;
  //protected boolean isFaceDown;
  
  /**
   * Basic constructor
   */
  public Deck() {
    deck = new Stack<Card>();
  }
  
  /** 
   * Add a card to the top of the deck.
   * 
   * @param card  The card to be added to the deck
   */
  public void addToDeck( Card card ) {
    deck.push( card );
  }
  
  /**
   * Add a card to the bottom of the deck.
   * 
   * @param card  The card to be placed at the bottom of the deck
   */
  public void addToBottomDeck( Card card ) {
    deck.add( card );
  }
  
  /**
   * Draw from the top of the deck.
   * 
   * @return  The card drawn
   *       null if the deck is empty
   */
  public Card draw() {
    if(! deck.empty() )
      return deck.pop();
    else
      return null;
  }
  
  public boolean isEmpty() {
    if( deck.size() == 0 )
      return true;
    else
      return false;
  }
  
  /**
   * Peek at the bottom card of the deck
   * 
   * @return   The card at the bottom of the deck.
   *       null if the deck is empty
   */
  public Card peekAtBottom() {
    if(! deck.empty() )
      return deck.get( deck.size() - 1 );
    else
      return null;
  }
  
  /**
   * Peek at the top card of the deck.
   * 
   * @return  The card at the top of the deck
   *       null if the deck is empty
   */
  public Card peekAtTop() {
    if(! deck.empty() )
      return deck.peek();
    else
      return null;
  }
  
  /** 
   * Shuffle the deck
   */
  public void shuffle() {
    Collections.shuffle( deck );
  }
  
  /**
   * Number of cards left in the Deck.
   * 
   * @return  The amount of cards left in the Deck.
   */
  public int size() {
    return deck.size();
  }

  /**
   * Empties the deck.
   */
  public void clear() {
    deck.clear();
  }
}