Go to the documentation of this file.00001
00002
00003 #include "osl/record/psn.h"
00004 #include "osl/state/simpleState.h"
00005
00006 const std::string osl::record::psn::
00007 show(Square pos)
00008 {
00009 const int x = pos.x();
00010 const int y = pos.y();
00011 std::string result = "XX";
00012 result[0] = x + '0';
00013 result[1] = y + 'a' - 1;
00014 return result;
00015 }
00016
00017 char osl::record::psn::
00018 show(Ptype ptype)
00019 {
00020 switch (ptype)
00021 {
00022 case PAWN: return 'P';
00023 case LANCE: return 'L';
00024 case KNIGHT: return 'N';
00025 case SILVER: return 'S';
00026 case GOLD: return 'G';
00027 case BISHOP: return 'B';
00028 case ROOK: return 'R';
00029 case KING: return 'K';
00030 default:
00031 assert("unsupported ptype" == 0);
00032 return '!';
00033 }
00034 }
00035
00036 const std::string osl::record::psn::
00037 show(Move m)
00038 {
00039 const Square from = m.from();
00040 const Square to = m.to();
00041 if (from.isPieceStand())
00042 {
00043 std::string result = "X*";
00044 result[0] = show(m.ptype());
00045 result += show(to);
00046 return result;
00047 }
00048 std::string result = show(from);
00049 result += show(to);
00050 if (m.promoteMask())
00051 result += '+';
00052 return result;
00053 }
00054
00055 const std::string osl::record::psn::
00056 showXP(Move m)
00057 {
00058 if (m.isInvalid())
00059 return "resign";
00060 if (m.isPass())
00061 return "pass";
00062 const Square from = m.from();
00063 const Square to = m.to();
00064 if (from.isPieceStand())
00065 {
00066 std::string result = "X*";
00067 result[0] = show(m.ptype());
00068 result += show(to);
00069 return result;
00070 }
00071 std::string result = show(from);
00072 if (m.capturePtype() != PTYPE_EMPTY)
00073 result += 'x';
00074 result += show(to);
00075 if (m.isPromotion())
00076 result += '+';
00077 else if (canPromote(m.ptype())
00078 && (from.canPromote(m.player()) || to.canPromote(m.player())))
00079 result += '=';
00080 return result;
00081 }
00082
00083
00084 const osl::Move osl::record::psn::
00085 strToMove(const std::string& str, const SimpleState& s)
00086 {
00087 if (str.size() < 4)
00088 throw ParseError("Invalid move string: " + str);
00089
00090 const Square to = strToPos(str.substr(2,2));
00091 if (str[1] == '*')
00092 {
00093 const Ptype ptype = charToPtype(str[0]);
00094 return Move(to, ptype, s.turn());
00095 }
00096
00097 const Square from = strToPos(str.substr(0,2));
00098 const Ptype ptype = s.pieceOnBoard(from).ptype();
00099 const Ptype captured = s.pieceOnBoard(to).ptype();
00100 if (! isPiece(ptype))
00101 throw ParseError("No piece on square: " + str);
00102 bool promotion = false;
00103 if (str.size() > 4)
00104 {
00105 assert(str[4] == '+');
00106 promotion = true;
00107 }
00108 return Move(from, to, (promotion ? promote(ptype) : ptype),
00109 captured, promotion, s.turn());
00110 }
00111
00112 const osl::Square osl::record::psn::
00113 strToPos(const std::string& str)
00114 {
00115 assert(str.size() == 2);
00116 const int x = str[0] - '0';
00117 const int y = str[1] - 'a' + 1;
00118 if (x <= 0 || x > 9 || y <= 0 || y > 9)
00119 throw ParseError("Invalid square character: " + str);
00120 return Square(x, y);
00121 }
00122
00123 osl::Ptype osl::record::psn::
00124 charToPtype(char c)
00125 {
00126 switch (c)
00127 {
00128 case 'P': return PAWN;
00129 case 'L': return LANCE;
00130 case 'N': return KNIGHT;
00131 case 'S': return SILVER;
00132 case 'G': return GOLD;
00133 case 'B': return BISHOP;
00134 case 'R': return ROOK;
00135 case 'K': return KING;
00136 default:
00137 return PTYPE_EMPTY;
00138 }
00139 }
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