src/positioninfo.cpp

   1 /*
   2   Copyright (c) 2006-2007 Paolo Capriotti <p.capriotti@sns.it>
   3             (c) 2006-2007 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 "positioninfo.h"
  12 #include "variants/chess.h"
  13 #include "variants/variants.h"
  14 #include "gameinfo.h"
  15 #include "icsapi.h"
  16
  17 using namespace boost;
  18
  19 // Style 12 was designed by Daniel Sleator (sleator+@cs.cmu.edu) Darooha@ICC
  20 QRegExp PositionInfo::pattern(
  21                                 "^<12>\\s+"                          //header
  22                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  23                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  24                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  25                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  26                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  27                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  28                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  29                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  30                                 "([BW])\\s+"                         //black/white
  31                                 "(-1|[0-7])\\s+"                     //passing pawn
  32                                 "([01])\\s+"                         //castle rights
  33                                 "([01])\\s+"                         //castle rights
  34                                 "([01])\\s+"                         //castle rights
  35                                 "([01])\\s+"                         //castle rights
  36                                 "(-?\\d+)\\s+"                       //50 moves made
  37                                 "(\\d+)\\s+"                         //game num
  38                                 "(\\S+)\\s+"                         //white name
  39                                 "(\\S+)\\s+"                         //black name
  40                                 "(-[1-4]|[0-2])\\s+"                 //status
  41                                 "(\\d+)\\s+"                         //time
  42                                 "(\\d+)\\s+"                         //inc
  43                                 "(\\d+)\\s+"                         //w material
  44                                 "(\\d+)\\s+"                         //b material
  45                                 "(-?\\d+)\\s+"                       //w time
  46                                 "(-?\\d+)\\s+"                       //b time
  47                                 "(\\d+)\\s+"                         //move made
  48                                 "(\\S+)\\s+"                         //coordmove
  49                                 "(\\S+)\\s+"                         //time used
  50                                 "(\\S+)\\s+"                         //algmove
  51                                 "([0-1])"                            //flip
  52
  53 );
  54
  55 PositionInfo::PositionRow::PositionRow(const ICSAPIPtr& icsapi, const QString& str) {
  56   Q_ASSERT(str.length() == 8);
  57
  58   row.resize(str.length());
  59   for (int i = 0; i < str.length(); ++i) {
  60     QChar c = str[i];
  61
  62     row[i] = icsapi->createPiece(c);
  63   }
  64 }
  65
  66 /**
  67   * @return Position index as a 0-based halfmove count.
  68  */
  69 int PositionInfo::index() const {
  70   int res = (moveIndex - 1) * 2;
  71   if (turn == BLACK) res++;
  72   return res;
  73 }
  74
  75 PositionInfo::PositionInfo(const std::map<int, ICSGameData>& games, const QString& str) {
  76   if (pattern.indexIn(str) != 0) {
  77     valid = false;
  78     return;
  79   }
  80
  81   valid = true;
  82   int gn = pattern.cap(CaptureIndexes::GameNumber).toInt();
  83   std::map<int, ICSGameData>::const_iterator gi = games.find(gn);
  84   ICSAPIPtr icsapi;
  85
  86   if (gi == games.end()) {
  87     ERROR("Received style12 for unknown game  " << gn);
  88     icsapi = Variant::variant("Dummy")->icsAPI();
  89   }
  90   else {
  91     icsapi = gi->second.icsapi;
  92   }
  93
  94   std::vector<PositionRow> rows;
  95   for (uint i = 0; i < 8; ++i)
  96     rows.push_back(PositionRow(icsapi, pattern.cap(CaptureIndexes::ChessboardStart + i)));
  97
  98   gameNumber = pattern.cap(CaptureIndexes::GameNumber).toInt();
  99   moveIndex = pattern.cap(CaptureIndexes::MoveOrdinal).toInt();
 100   whitePlayer = pattern.cap(CaptureIndexes::WhitePlayer);
 101   blackPlayer = pattern.cap(CaptureIndexes::BlackPlayer);
 102   turn = pattern.cap(CaptureIndexes::Turn) == "W"? WHITE : BLACK;
 103
 104   int ep = pattern.cap(CaptureIndexes::EnPassant).toInt();
 105   if (ep == -1)
 106     enPassantSquare = Point::invalid();
 107   else
 108     enPassantSquare = Point(ep, turn == WHITE? 2 : 5);
 109
 110   bool wkCastle = pattern.cap(CaptureIndexes::WhiteKingCastle).toInt() == 1;
 111   bool wqCastle = pattern.cap(CaptureIndexes::WhiteQueenCastle).toInt() == 1;
 112   bool bkCastle = pattern.cap(CaptureIndexes::BlackKingCastle).toInt() == 1;
 113   bool bqCastle = pattern.cap(CaptureIndexes::BlackQueenCastle).toInt() == 1;
 114
 115   position = icsapi->createChessboard(turn, wkCastle, wqCastle, bkCastle, bqCastle, enPassantSquare);
 116   for (uint i = 0; i < 8; ++i) {
 117     for (uint j = 0; j < rows[i].row.size(); ++j) {
 118       position->set(Point(j,i), rows[i].row[j]);
 119     }
 120   }
 121
 122   relation = static_cast<Relation>(pattern.cap(CaptureIndexes::Relation).toInt());
 123
 124   whiteTime = pattern.cap(CaptureIndexes::WhiteTime).toInt();
 125   blackTime = pattern.cap(CaptureIndexes::BlackTime).toInt();
 126   if (pattern.cap(CaptureIndexes::TimeUsed).indexOf('.') == -1) {
 127     // time is in seconds
 128     whiteTime *= 1000;
 129     blackTime *= 1000;
 130   }
 131
 132   lastMoveSAN = pattern.cap(CaptureIndexes::LastMove);
 133   lastMove = pattern.cap(CaptureIndexes::LastMoveVerbose);
 134 }