src/hlvariant/chess/piece.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 "piece.h"
  12 #include "san.h"
  13
  14 namespace HLVariant {
  15 namespace Chess {
  16
  17 Piece::~Piece() { }
  18
  19 Piece::Piece(Color color, Type type)
  20 : m_color(color)
  21 , m_type(type) { }
  22
  23 Piece::Color Piece::color() const { return m_color; }
  24
  25 Piece::Type Piece::type() const { return m_type; }
  26
  27 QString Piece::colorName() const { return colorName(m_color); }
  28
  29 QString Piece::colorName(Color color) {
  30   switch (color) {
  31   case WHITE:
  32     return "white";
  33   case BLACK:
  34     return "black";
  35   default:
  36     return "unknown";
  37   }
  38 }
  39
  40 QString Piece::typeName() const { return typeName(m_type); }
  41
  42 QString Piece::typeName(Type type) {
  43   switch (type) {
  44   case ROOK:
  45     return "rook";
  46   case BISHOP:
  47     return "bishop";
  48   case KNIGHT:
  49     return "knight";
  50   case QUEEN:
  51     return "queen";
  52   case KING:
  53     return "king";
  54   case PAWN:
  55     return "pawn";
  56   default:
  57     return "unknown";
  58   }
  59 }
  60
  61 QString Piece::name() const {
  62   return colorName() + '_' + typeName();
  63 }
  64
  65 Piece::Color Piece::oppositeColor(Color color) {
  66   switch (color) {
  67   case WHITE:
  68     return BLACK;
  69   case BLACK:
  70     return WHITE;
  71   default:
  72     return INVALID_COLOR;
  73   }
  74 }
  75
  76 bool Piece::operator==(const Piece& other) const {
  77   return m_color == other.m_color &&
  78          m_type == other.m_type;
  79 }
  80
  81 bool Piece::operator!=(const Piece& other) const {
  82   return !((*this) == other);
  83 }
  84
  85 Piece Piece::fromDescription(const QString& description) {
  86   if (description.size() == 1) {
  87     QChar c = description[0];
  88     Color color;
  89
  90     if (c.category() == QChar::Letter_Uppercase) {
  91       color = WHITE;
  92     }
  93     else if (c.category() == QChar::Letter_Lowercase) {
  94       color = BLACK;
  95     }
  96     else {
  97       return Piece();
  98     }
  99
 100     Type type = static_cast<Type>(SAN::getType(c));
 101
 102     if (type != INVALID_TYPE) {
 103       return Piece(color, type);
 104     }
 105   }
 106
 107   return Piece();
 108 }
 109
 110 } // namespace HLVariant
 111 } // namespace Chess
 112