src/variants/shogi/bishop.cpp

   1 /*
   2   Copyright (c) 2007 Paolo Capriotti <p.capriotti@gmail.com>
   3             (c) 2007 Maurizio Monge <maurizio.monge@kdemail.net>
   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 2 of the License, or
   8   (at your option) any later version.
   9 */
  10
  11 #include "bishop.h"
  12 #include <core/move.h>
  13 #include <core/pathinfo.h>
  14 #include <core/state.h>
  15 #include <core/board.h>
  16
  17 namespace Shogi {
  18
  19 Bishop::Bishop() { }
  20
  21 QString Bishop::name() const { return "bishop"; }
  22
  23 bool Bishop::canMove(const Piece& piece, const Piece& target,
  24                    Move& move, const IState* state) const {
  25   PathInfo path = state->board()->path(move.src(), move.dst());
  26   return path.diagonal() && path.clear() && target.color() != piece.color();
  27 }
  28
  29 int Bishop::index() const { return 35; }
  30
  31 Bishop* Bishop::self() {
  32   static Bishop s_instance;
  33   return &s_instance;
  34 }
  35
  36 }