X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fpiece.cpp;h=84d12af107563c2809403c62b5d1ce16b031997d;hb=7305b569579e02d5e40d8ed981b93a03a6622868;hp=40babba695165c8ac7630f1e9b0c0222746308ea;hpb=683595fee15a1d8ceeb1bbd577d96ed9c0f8aaaa;p=stockfish

diff --git a/src/piece.cpp b/src/piece.cpp
index 40babba6..84d12af1 100644
--- a/src/piece.cpp
+++ b/src/piece.cpp
@@ -1,7 +1,7 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008 Marco Costalba
+  Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -22,10 +22,38 @@
 //// Includes
 ////
 
-#include <cstring>
+#include <string>
 
 #include "piece.h"
 
+using namespace std;
+
+// Tables indexed by Piece
+
+const Value PieceValueMidgame[17] = {
+  VALUE_ZERO,
+  PawnValueMidgame, KnightValueMidgame, BishopValueMidgame,
+  RookValueMidgame, QueenValueMidgame,
+  VALUE_ZERO, VALUE_ZERO, VALUE_ZERO,
+  PawnValueMidgame, KnightValueMidgame, BishopValueMidgame,
+  RookValueMidgame, QueenValueMidgame,
+  VALUE_ZERO, VALUE_ZERO, VALUE_ZERO
+};
+
+const Value PieceValueEndgame[17] = {
+  VALUE_ZERO,
+  PawnValueEndgame, KnightValueEndgame, BishopValueEndgame,
+  RookValueEndgame, QueenValueEndgame,
+  VALUE_ZERO, VALUE_ZERO, VALUE_ZERO,
+  PawnValueEndgame, KnightValueEndgame, BishopValueEndgame,
+  RookValueEndgame, QueenValueEndgame,
+  VALUE_ZERO, VALUE_ZERO, VALUE_ZERO
+};
+
+const int SlidingArray[18] = {
+  0, 0, 0, 1, 2, 3, 0, 0, 0, 0, 0, 1, 2, 3, 0, 0, 0, 0
+};
+
 
 ////
 //// Functions
@@ -33,13 +61,16 @@
 
 /// Translating piece types to/from English piece letters
 
-static const char PieceChars[] = " pnbrqk";
+static const string PieceChars(" pnbrqk PNBRQK");
 
 char piece_type_to_char(PieceType pt, bool upcase) {
-  return char(upcase? toupper(PieceChars[pt]) : PieceChars[pt]);
+
+  return PieceChars[pt + int(upcase) * 7];
 }
 
 PieceType piece_type_from_char(char c) {
-  const char* ch = strchr(PieceChars, tolower(c));
-  return ch? PieceType(ch - PieceChars) : NO_PIECE_TYPE;
+
+  size_t idx = PieceChars.find(c);
+
+  return idx != string::npos ? PieceType(idx % 7) : PIECE_TYPE_NONE;
 }