/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2009 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
void History::clear() {
memset(history, 0, 2 * 8 * 64 * sizeof(int));
- memset(maxStaticValueDelta, 0, 16 * 64 * 64 * sizeof(int));
+ memset(maxStaticValueDelta, 0, 2 * 8 * 64 * sizeof(int));
}
/// gain of a move given the delta of the static position evaluations
/// before and after the move.
-void History::set_gain(Piece p, Square from, Square to, Value delta)
+void History::set_gain(Piece p, Square to, Value delta)
{
- if (delta >= maxStaticValueDelta[p][from][to])
- maxStaticValueDelta[p][from][to] = delta;
+ if (delta >= maxStaticValueDelta[p][to])
+ maxStaticValueDelta[p][to] = delta;
else
- maxStaticValueDelta[p][from][to]--;
+ maxStaticValueDelta[p][to]--;
}
-Value History::gain(Piece p, Square from, Square to) const
+Value History::gain(Piece p, Square to) const
{
- return Value(maxStaticValueDelta[p][from][to]);
+ return Value(maxStaticValueDelta[p][to]);
}