src/positioninfo.cpp

   1 /*
   2   Copyright (c) 2006-2007 Paolo Capriotti <p.capriotti@gmail.com>
   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 <KDebug>
  13
  14 #include <core/board.h>
  15 #include <core/state.h>
  16
  17 #include "variants.h"
  18 #include "gameinfo.h"
  19 #include "icsapi.h"
  20
  21 using namespace boost;
  22
  23 // Style 12 was designed by Daniel Sleator (sleator+@cs.cmu.edu) Darooha@ICC
  24 QRegExp PositionInfo::pattern(
  25                                 "^<12>\\s+"                          //header
  26                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  27                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  28                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  29                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  30                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  31                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  32                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  33                                 "([qkbnrpQKBNRP-]{8})\\s+"           //chessboard
  34                                 "([BW])\\s+"                         //black/white
  35                                 "(-1|[0-7])\\s+"                     //passing pawn
  36                                 "([01])\\s+"                         //castle rights
  37                                 "([01])\\s+"                         //castle rights
  38                                 "([01])\\s+"                         //castle rights
  39                                 "([01])\\s+"                         //castle rights
  40                                 "(-?\\d+)\\s+"                       //50 moves made
  41                                 "(\\d+)\\s+"                         //game num
  42                                 "(\\S+)\\s+"                         //white name
  43                                 "(\\S+)\\s+"                         //black name
  44                                 "(-[1-4]|[0-2])\\s+"                 //status
  45                                 "(\\d+)\\s+"                         //time
  46                                 "(\\d+)\\s+"                         //inc
  47                                 "(\\d+)\\s+"                         //w material
  48                                 "(\\d+)\\s+"                         //b material
  49                                 "(-?\\d+)\\s+"                       //w time
  50                                 "(-?\\d+)\\s+"                       //b time
  51                                 "(\\d+)\\s+"                         //move made
  52                                 "(\\S+)\\s+"                         //coordmove
  53                                 "(\\S+)\\s+"                         //time used
  54                                 "(\\S+)\\s+"                         //algmove
  55                                 "([0-1])"                            //flip
  56
  57 );
  58
  59 PositionInfo::PositionRow::PositionRow(const ICSAPIPtr& icsapi, const QString& str) {
  60   Q_ASSERT(str.length() == 8);
  61
  62   row.resize(str.length());
  63   for (int i = 0; i < str.length(); ++i) {
  64     QChar c = str[i];
  65
  66     row[i] = icsapi->createPiece(c);
  67   }
  68 }
  69
  70 /**
  71   * @return Position index as a 0-based halfmove count.
  72  */
  73 int PositionInfo::index() const {
  74   int res = (moveIndex - 1) * 2;
  75   if (turn == 1) res++;
  76   return res;
  77 }
  78
  79 PositionInfo::PositionInfo()
  80 : valid(false) { }
  81
  82 bool PositionInfo::load(std::map<int, ICSGameData>& games, const QString& str) {
  83   if (pattern.indexIn(str) != 0) {
  84     valid = false;
  85     return true;
  86   }
  87
  88   bool new_game = false;
  89
  90   valid = true;
  91   int gn = pattern.cap(CaptureIndexes::GameNumber).toInt();
  92   std::map<int, ICSGameData>::iterator gi = games.find(gn);
  93   ICSAPIPtr icsapi;
  94
  95   if (gi == games.end()) {
  96     kWarning() << "Received style12 for unknown game" << gn;
  97     // create a gameinfo of type "dummy"
  98     gi = games.insert(std::make_pair(gn, ICSGameData(gn, ""))).first;
  99     new_game = true;
 100   }
 101
 102   // FIXME load icsapi
 103 //   icsapi = gi->second.icsapi;
 104
 105   std::vector<PositionRow> rows;
 106   for (uint i = 0; i < 8; ++i)
 107     rows.push_back(PositionRow(icsapi, pattern.cap(CaptureIndexes::ChessboardStart + i)));
 108
 109   gameNumber = pattern.cap(CaptureIndexes::GameNumber).toInt();
 110   moveIndex = pattern.cap(CaptureIndexes::MoveOrdinal).toInt();
 111   whitePlayer = pattern.cap(CaptureIndexes::WhitePlayer);
 112   blackPlayer = pattern.cap(CaptureIndexes::BlackPlayer);
 113   turn = pattern.cap(CaptureIndexes::Turn) == "W"? 0 : 1;
 114
 115   int ep = pattern.cap(CaptureIndexes::EnPassant).toInt();
 116   if (ep == -1)
 117     enPassantSquare = Point::invalid();
 118   else
 119     enPassantSquare = Point(ep, turn == 0? 2 : 5);
 120
 121   bool wkCastle = pattern.cap(CaptureIndexes::WhiteKingCastle).toInt() == 1;
 122   bool wqCastle = pattern.cap(CaptureIndexes::WhiteQueenCastle).toInt() == 1;
 123   bool bkCastle = pattern.cap(CaptureIndexes::BlackKingCastle).toInt() == 1;
 124   bool bqCastle = pattern.cap(CaptureIndexes::BlackQueenCastle).toInt() == 1;
 125
 126   position = icsapi->createChessboard(turn, wkCastle, wqCastle, bkCastle, bqCastle, enPassantSquare);
 127   for (uint i = 0; i < 8; ++i) {
 128     for (uint j = 0; j < rows[i].row.size(); ++j) {
 129       position->board()->set(Point(j,i), rows[i].row[j]);
 130     }
 131   }
 132
 133   relation = static_cast<Relation>(pattern.cap(CaptureIndexes::Relation).toInt());
 134
 135   whiteTime = pattern.cap(CaptureIndexes::WhiteTime).toInt();
 136   blackTime = pattern.cap(CaptureIndexes::BlackTime).toInt();
 137   if (pattern.cap(CaptureIndexes::TimeUsed).indexOf('.') == -1) {
 138     // time is in seconds
 139     whiteTime *= 1000;
 140     blackTime *= 1000;
 141   }
 142
 143   lastMoveSAN = pattern.cap(CaptureIndexes::LastMove);
 144   lastMove = pattern.cap(CaptureIndexes::LastMoveVerbose);
 145
 146   return new_game;
 147 }