/***************************************************************************
 *                               KeywordList.cs
 *                            -------------------
 *   begin                : May 1, 2002
 *   copyright            : (C) The RunUO Software Team
 *   email                : info@runuo.com
 *
 *   $Id$
 *
 ***************************************************************************/

/***************************************************************************
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 ***************************************************************************/

namespace Server
{
  public class KeywordList
  {
    private static int[] m_EmptyInts = new int[0];
    private int[] m_Keywords;

    public KeywordList()
    {
      m_Keywords = new int[8];
      Count = 0;
    }

    public int Count{ get; private set; }

    public bool Contains(int keyword)
    {
      bool contains = false;

      for (int i = 0; !contains && i < Count; ++i)
        contains = keyword == m_Keywords[i];

      return contains;
    }

    public void Add(int keyword)
    {
      if (Count + 1 > m_Keywords.Length)
      {
        int[] old = m_Keywords;
        m_Keywords = new int[old.Length * 2];

        for (int i = 0; i < old.Length; ++i)
          m_Keywords[i] = old[i];
      }

      m_Keywords[Count++] = keyword;
    }

    public int[] ToArray()
    {
      if (Count == 0)
        return m_EmptyInts;

      int[] keywords = new int[Count];

      for (int i = 0; i < Count; ++i)
        keywords[i] = m_Keywords[i];

      Count = 0;

      return keywords;
    }
  }
}