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  1. /*
  2.     Texel - A UCI chess engine.
  3.     Copyright (C) 2012  Peter Österlund, peterosterlund2@gmail.com
  4.  
  5.     This program is free software: you can redistribute it and/or modify
  6.     it under the terms of the GNU General Public License as published by
  7.     the Free Software Foundation, either version 3 of the License, or
  8.     (at your option) any later version.
  9.  
  10.     This program is distributed in the hope that it will be useful,
  11.     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12.     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13.     GNU General Public License for more details.
  14.  
  15.     You should have received a copy of the GNU General Public License
  16.     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17. */
  18.  
  19. /*
  20.  * player.hpp
  21.  *
  22.  *  Created on: Feb 25, 2012
  23.  *      Author: petero
  24.  */
  25.  
  26. #ifndef PLAYER_HPP_
  27. #define PLAYER_HPP_
  28.  
  29. #include <vector>
  30. #include <string>
  31.  
  32. class Position;
  33.  
  34. /**
  35.  * Interface for human/computer players.
  36.  */
  37. class Player {
  38. public:
  39.     virtual ~Player();
  40.  
  41.     /**
  42.      * Get a command from a player.
  43.      * The command can be a valid move string, in which case the move is played
  44.      * and the turn goes over to the other player. The command can also be a special
  45.      * command, such as "quit", "new", "resign", etc.
  46.      * @param history List of earlier positions (not including the current position).
  47.      *                This makes it possible for the player to correctly handle
  48.      *                the draw by repetition rule.
  49.      */
  50.     virtual std::string getCommand(const Position& pos, bool drawOffer,
  51.                                    const std::vector<Position>& history) = 0;
  52.  
  53.     /** Return true if this player is a human player. */
  54.     virtual bool isHumanPlayer() = 0;
  55.  
  56.     /**
  57.      * Inform player whether or not to use an opening book.
  58.      * Of course, a human player is likely to ignore this.
  59.      */
  60.     virtual void useBook(bool bookOn) = 0;
  61.  
  62.     /**
  63.      * Inform player about min recommended/max allowed thinking time per move.
  64.      * Of course, a human player is likely to ignore this.
  65.      */
  66.     virtual void timeLimit(int minTimeLimit, int maxTimeLimit) = 0;
  67.  
  68.     /**
  69.      * Inform player that the transposition table should be cleared.
  70.      * Of course, a human player has a hard time implementing this.
  71.      */
  72.     virtual void clearTT() = 0;
  73. };
  74.  
  75. inline
  76. Player::~Player() {
  77. }
  78.  
  79.  
  80. #endif /* PLAYER_HPP_ */
  81.