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Zobrist.cpp
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/*
This file is part of Leela Zero.
Copyright (C) 2017-2019 Gian-Carlo Pascutto and contributors
Leela Zero is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Leela Zero is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Leela Zero. If not, see <http://www.gnu.org/licenses/>.
Additional permission under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with NVIDIA Corporation's libraries from the
NVIDIA CUDA Toolkit and/or the NVIDIA CUDA Deep Neural
Network library and/or the NVIDIA TensorRT inference library
(or a modified version of those libraries), containing parts covered
by the terms of the respective license agreement, the licensors of
this Program grant you additional permission to convey the resulting
work.
*/
#include "config.h"
#include "Zobrist.h"
#include "Random.h"
std::array<std::array<std::uint64_t, FastBoard::NUM_VERTICES>, 4> Zobrist::zobrist;
std::array<std::uint64_t, FastBoard::NUM_VERTICES> Zobrist::zobrist_ko;
std::array<std::array<std::uint64_t, FastBoard::NUM_VERTICES * 2>, 2> Zobrist::zobrist_pris;
std::array<std::uint64_t, 5> Zobrist::zobrist_pass;
void Zobrist::init_zobrist(Random& rng) {
for (int i = 0; i < 4; i++) {
for (int j = 0; j < FastBoard::NUM_VERTICES; j++) {
Zobrist::zobrist[i][j] = rng.randuint64();
}
}
for (int j = 0; j < FastBoard::NUM_VERTICES; j++) {
Zobrist::zobrist_ko[j] = rng.randuint64();
}
for (int i = 0; i < 2; i++) {
for (int j = 0; j < FastBoard::NUM_VERTICES * 2; j++) {
Zobrist::zobrist_pris[i][j] = rng.randuint64();
}
}
for (int i = 0; i < 5; i++) {
Zobrist::zobrist_pass[i] = rng.randuint64();
}
}