/**
   * setupPlayZone.
   *
   * @param p a {@link arcane.ui.PlayArea} object.
   * @param c an array of {@link forge.Card} objects.
   */
  public static void setupPlayZone(PlayArea p, Card c[]) {
    List<Card> tmp, diff;
    tmp = new ArrayList<Card>();
    for (arcane.ui.CardPanel cpa : p.cardPanels) tmp.add(cpa.gameCard);
    diff = new ArrayList<Card>(tmp);
    diff.removeAll(Arrays.asList(c));
    if (diff.size() == p.cardPanels.size()) p.clear();
    else {
      for (Card card : diff) {
        p.removeCardPanel(p.getCardPanel(card.getUniqueNumber()));
      }
    }
    diff = new ArrayList<Card>(Arrays.asList(c));
    diff.removeAll(tmp);

    arcane.ui.CardPanel toPanel = null;
    for (Card card : diff) {
      toPanel = p.addCard(card);
      Animation.moveCard(toPanel);
    }

    for (Card card : c) {
      toPanel = p.getCardPanel(card.getUniqueNumber());
      if (card.isTapped()) {
        toPanel.tapped = true;
        toPanel.tappedAngle = arcane.ui.CardPanel.TAPPED_ANGLE;
      } else {
        toPanel.tapped = false;
        toPanel.tappedAngle = 0;
      }
      toPanel.attachedPanels.clear();
      if (card.isEnchanted()) {
        ArrayList<Card> enchants = card.getEnchantedBy();
        for (Card e : enchants) {
          arcane.ui.CardPanel cardE = p.getCardPanel(e.getUniqueNumber());
          if (cardE != null) toPanel.attachedPanels.add(cardE);
        }
      }

      if (card.isEquipped()) {
        ArrayList<Card> enchants = card.getEquippedBy();
        for (Card e : enchants) {
          arcane.ui.CardPanel cardE = p.getCardPanel(e.getUniqueNumber());
          if (cardE != null) toPanel.attachedPanels.add(cardE);
        }
      }

      if (card.isEnchanting()) {
        toPanel.attachedToPanel = p.getCardPanel(card.getEnchanting().get(0).getUniqueNumber());
      } else if (card.isEquipping()) {
        toPanel.attachedToPanel = p.getCardPanel(card.getEquipping().get(0).getUniqueNumber());
      } else toPanel.attachedToPanel = null;

      toPanel.setCard(toPanel.gameCard);
    }
    p.invalidate();
    p.repaint();
  }