src/variants/shogi/faces/dragonking.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 "dragonking.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 namespace Faces {
  19
  20 DragonKing::DragonKing() { }
  21
  22 QString DragonKing::name() const { return "rook"; }
  23
  24 bool DragonKing::canMove(const Piece& piece, const Piece& target,
  25                    Move& move, const IState* state) const {
  26   PathInfo path = state->board()->path(move.src(), move.dst());
  27   return path.parallel() && path.clear() && target.color() != piece.color();
  28 }
  29
  30 int DragonKing::index() const { return 300; }
  31
  32 DragonKing* DragonKing::self() {
  33   static DragonKing s_instance;
  34   return &s_instance;
  35 }
  36
  37 }
  38 }