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DroidFish: Updated stockfish to version 6.

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This commit is contained in:
Peter Osterlund
2015-02-01 00:46:09 +00:00
parent fffd5107c3
commit 22e71744a1
48 changed files with 4233 additions and 4553 deletions
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12
DroidFish/jni/stockfish/bitbase.cpp
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@@ -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) 2008-2014 Marco Costalba, Joona Kiiski, Tord Romstad
Copyright (C) 2008-2015 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
@@ -41,7 +41,7 @@ namespace {
// bit 13-14: white pawn file (from FILE_A to FILE_D)
// bit 15-17: white pawn RANK_7 - rank (from RANK_7 - RANK_7 to RANK_7 - RANK_2)
unsigned index(Color us, Square bksq, Square wksq, Square psq) {
return wksq + (bksq << 6) + (us << 12) + (file_of(psq) << 13) + ((RANK_7 - rank_of(psq)) << 15);
return wksq | (bksq << 6) | (us << 12) | (file_of(psq) << 13) | ((RANK_7 - rank_of(psq)) << 15);
}
enum Result {
@@ -71,7 +71,7 @@ namespace {
} // namespace
bool Bitbases::probe_kpk(Square wksq, Square wpsq, Square bksq, Color us) {
bool Bitbases::probe(Square wksq, Square wpsq, Square bksq, Color us) {
assert(file_of(wpsq) <= FILE_D);
@@ -80,7 +80,7 @@ bool Bitbases::probe_kpk(Square wksq, Square wpsq, Square bksq, Color us) {
}
void Bitbases::init_kpk() {
void Bitbases::init() {
unsigned idx, repeat = 1;
std::vector<KPKPosition> db;
@@ -114,7 +114,7 @@ namespace {
result = UNKNOWN;
// Check if two pieces are on the same square or if a king can be captured
if ( square_distance(wksq, bksq) <= 1
if ( distance(wksq, bksq) <= 1
|| wksq == psq
|| bksq == psq
|| (us == WHITE && (StepAttacksBB[PAWN][psq] & bksq)))
@@ -125,7 +125,7 @@ namespace {
// Immediate win if a pawn can be promoted without getting captured
if ( rank_of(psq) == RANK_7
&& wksq != psq + DELTA_N
&& ( square_distance(bksq, psq + DELTA_N) > 1
&& ( distance(bksq, psq + DELTA_N) > 1
||(StepAttacksBB[KING][wksq] & (psq + DELTA_N))))
result = WIN;
}