src/variants/shogi/pawn.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 "pawn.h"
  12 #include <core/behaviour.h>
  13 #include <core/move.h>
  14 #include <core/pathinfo.h>
  15 #include <core/state.h>
  16 #include <core/board.h>
  17 #include <core/taguacast.h>
  18
  19 namespace Shogi {
  20
  21 Pawn::Pawn() { }
  22
  23 QString Pawn::name() const { return "pawn"; }
  24
  25 bool Pawn::canMove(const Piece& piece, const Piece&,
  26                    Move& move, const IState* state) const {
  27   const IBehaviour* behaviour = state->behaviour();
  28   if (!behaviour) return false;
  29
  30   return move.delta() == behaviour->direction(piece.color());
  31 }
  32
  33 int Pawn::index() const { return 10; }
  34
  35 Pawn* Pawn::self() {
  36   static Pawn s_instance;
  37   return &s_instance;
  38 }
  39
  40 }