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/*
This file is part of ctak.
This program 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.
This program 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 ctak. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef PV_H
#define PV_H
#ifdef RECORD_PV
#include <stdint.h>
#include <tak.h>
#define PV_MAX_CELLS (6 * 6)
typedef struct pv_leaf_s {
float head[2];
uint8_t cells[PV_MAX_CELLS];
uint8_t terminal;
float terminal_value;
float parity_sign;
} pv_leaf_t;
// Capture a horizon leaf (winner == 0xFF) or an exact terminal leaf.
//
// The cell indices are taken from the encoding of the most recent
// nn_prepare_input.
void pv_capture_leaf(pv_leaf_t *leaf, tak_state_p state, enum WIN_TYPE winner);
// Publish and retrieve the leaf selected by the full-depth root search
void pv_publish_leaf(const pv_leaf_t *leaf);
const pv_leaf_t *pv_get_leaf(void);
#endif
#endif
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