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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 112 | pmbaty | 1 | /* |
| 2 | Protector -- a UCI chess engine |
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| 3 | |||
| 4 | Copyright (C) 2009-2010 Raimund Heid (Raimund_Heid@yahoo.com) |
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| 5 | |||
| 6 | This program is free software: you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation, either version 3 of the License, or |
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| 9 | (at your option) any later version. |
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| 10 | |||
| 11 | This program is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |||
| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
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| 18 | |||
| 19 | */ |
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| 20 | |||
| 21 | #ifndef _book_h_ |
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| 22 | #define _book_h_ |
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| 23 | |||
| 24 | #include "protector.h" |
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| 25 | #include "position.h" |
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| 26 | #include <stdio.h> |
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| 27 | |||
| 28 | #define BOOKINDEX_SIZE 10007 |
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| 29 | #define getBookpositionIndex(hashKey) \ |
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| 30 | ((hashKey) % BOOKINDEX_SIZE) |
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| 31 | #define getBookpositionIndexOffset(hashKey) \ |
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| 32 | (getBookpositionIndex(hashKey) * sizeof(BookPosition)) |
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| 33 | |||
| 34 | typedef struct |
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| 35 | { |
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| 36 | UINT64 hashKey; |
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| 37 | UINT32 nextPosition; |
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| 38 | UINT32 firstMove; |
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| 39 | } |
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| 40 | BookPosition; |
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| 41 | |||
| 42 | typedef struct |
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| 43 | { |
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| 44 | UINT16 move; |
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| 45 | UINT16 numberOfGames; |
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| 46 | INT16 score; |
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| 47 | UINT16 numberOfPersonalGames; |
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| 48 | INT16 personalScore; |
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| 49 | UINT32 nextAlternative; |
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| 50 | } |
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| 51 | BookMove; |
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| 52 | |||
| 53 | typedef struct |
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| 54 | { |
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| 55 | FILE *indexFile, *moveFile; |
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| 56 | bool readonly; |
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| 57 | UINT32 numberOfPositions, numberOfMoves; |
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| 58 | } |
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| 59 | Book; |
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| 60 | |||
| 61 | extern Book globalBook; |
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| 62 | |||
| 63 | /** |
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| 64 | * Open the book specified by 'name'. |
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| 65 | * |
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| 66 | * @return 0 if no errors occurred. |
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| 67 | */ |
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| 68 | int openBook(Book * book, const char *name); |
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| 69 | |||
| 70 | /** |
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| 71 | * Create an empty book. |
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| 72 | */ |
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| 73 | void createEmptyBook(Book * book); |
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| 74 | |||
| 75 | /** |
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| 76 | * Close the specified book. |
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| 77 | */ |
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| 78 | void closeBook(Book * book); |
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| 79 | |||
| 80 | /** |
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| 81 | * Get all bookmoves for the position specified by 'hashKey'. |
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| 82 | */ |
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| 83 | void getBookmoves(const Book * book, const UINT64 hashKey, |
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| 84 | const Movelist * legalMoves, Movelist * bookMoves); |
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| 85 | |||
| 86 | /** |
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| 87 | * Get a move suggestion for the position specified by 'hashKey'. |
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| 88 | * |
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| 89 | * @return an illegal move if the book doesn't contain the position |
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| 90 | */ |
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| 91 | Move getBookmove(const Book * book, const UINT64 hashKey, |
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| 92 | const Movelist * legalMoves); |
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| 93 | |||
| 94 | /** |
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| 95 | * Add the specified move to the opening book. |
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| 96 | */ |
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| 97 | void addBookmove(Book * book, const Position * position, |
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| 98 | const Move move, const GameResult result, |
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| 99 | const bool personalResult); |
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| 100 | |||
| 101 | /** |
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| 102 | * Append the database specified by 'filename' to the book specified by 'book'. |
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| 103 | * |
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| 104 | * @param maximumNumberOfPlies the maximum distance between a book position |
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| 105 | * and the start position |
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| 106 | */ |
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| 107 | void appendBookDatabase(Book * book, const char *filename, |
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| 108 | int maximumNumberOfPlies); |
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| 109 | |||
| 110 | /** |
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| 111 | * Initialize this module. |
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| 112 | * |
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| 113 | * @return 0 if no errors occurred. |
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| 114 | */ |
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| 115 | int initializeModuleBook(void); |
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| 116 | |||
| 117 | /** |
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| 118 | * Test this module. |
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| 119 | * |
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| 120 | * @return 0 if all tests succeed. |
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| 121 | */ |
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| 122 | int testModuleBook(void); |
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| 123 | |||
| 124 | #endif |