src/chess/rules.h

Wed, 26 Aug 2015 14:46:42 +0200

author
Mike Becker <universe@uap-core.de>
date
Wed, 26 Aug 2015 14:46:42 +0200
changeset 54
eef745ba3774
parent 50
41017d0a72c5
child 55
54ea19938d57
permissions
-rw-r--r--

implemented FEN

10
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
1 /*
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
3 *
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
4 * Copyright 2014 Mike Becker. All rights reserved.
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
5 *
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
6 * Redistribution and use in source and binary forms, with or without
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
7 * modification, are permitted provided that the following conditions are met:
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
8 *
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
9 * 1. Redistributions of source code must retain the above copyright
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
10 * notice, this list of conditions and the following disclaimer.
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
11 *
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
12 * 2. Redistributions in binary form must reproduce the above copyright
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
13 * notice, this list of conditions and the following disclaimer in the
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
14 * documentation and/or other materials provided with the distribution.
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
15 *
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
26 * POSSIBILITY OF SUCH DAMAGE.
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
27 *
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
28 */
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
29
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
30 #ifndef RULES_H
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
31 #define RULES_H
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
32
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
33 #include <stdint.h>
36
ebe0c961e9a6 reduced awesome great nanosecond precision so we can compile on OS X
Mike Becker <universe@uap-core.de>
parents: 33
diff changeset
34 #include <sys/time.h>
10
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
35
48
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
36 #define VALID_MOVE_SYNTAX 0
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
37 #define VALID_MOVE_SEMANTICS 0 /* use same code for a success */
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
38 #define INVALID_MOVE_SYNTAX 1
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
39 #define INVALID_POSITION 2
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
40 #define AMBIGUOUS_MOVE 3
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
41 #define NEED_PROMOTION 4
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
42 #define PIECE_PINNED 5
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
43 #define KING_IN_CHECK 6
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
44 #define KING_MOVES_INTO_CHECK 7
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
45 #define RULES_VIOLATED 10
16
a298c6637c30 introduced status codes for get_location to produce detailed error messages + added knight rules
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
46
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
47
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
48 #define PIECE_MASK 0x0F
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
49 #define COLOR_MASK 0x30
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
50 #define ENPASSANT_THREAT 0x40
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
51
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
52 #define WHITE 0x10
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
53 #define BLACK 0x20
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
54
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
55 #define PAWN 0x01
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
56 #define ROOK 0x02
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
57 #define KNIGHT 0x03
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
58 #define BISHOP 0x04
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
59 #define QUEEN 0x05
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
60 #define KING 0x06
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
61
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
62 #define WPAWN (WHITE|PAWN)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
63 #define WROOK (WHITE|ROOK)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
64 #define WKNIGHT (WHITE|KNIGHT)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
65 #define WBISHOP (WHITE|BISHOP)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
66 #define WQUEEN (WHITE|QUEEN)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
67 #define WKING (WHITE|KING)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
68 #define BPAWN (BLACK|PAWN)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
69 #define BROOK (BLACK|ROOK)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
70 #define BKNIGHT (BLACK|KNIGHT)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
71 #define BBISHOP (BLACK|BISHOP)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
72 #define BQUEEN (BLACK|QUEEN)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
73 #define BKING (BLACK|KING)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
74
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
75 typedef uint8_t Board[8][8];
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
76
40
47162a7621da fixed Move struct size inconsistancy across plattforms
Mike Becker <universe@uap-core.de>
parents: 36
diff changeset
77 struct movetimeval {
47162a7621da fixed Move struct size inconsistancy across plattforms
Mike Becker <universe@uap-core.de>
parents: 36
diff changeset
78 uint64_t tv_sec;
47162a7621da fixed Move struct size inconsistancy across plattforms
Mike Becker <universe@uap-core.de>
parents: 36
diff changeset
79 int32_t tv_usec;
47162a7621da fixed Move struct size inconsistancy across plattforms
Mike Becker <universe@uap-core.de>
parents: 36
diff changeset
80 };
47162a7621da fixed Move struct size inconsistancy across plattforms
Mike Becker <universe@uap-core.de>
parents: 36
diff changeset
81
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
82 typedef struct {
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
83 uint8_t piece;
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
84 uint8_t fromfile;
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
85 uint8_t fromrow;
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
86 uint8_t tofile;
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
87 uint8_t torow;
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
88 uint8_t promotion;
41
a8346dcf7bbf faced struct alignment problems
Mike Becker <universe@uap-core.de>
parents: 40
diff changeset
89 uint8_t check;
a8346dcf7bbf faced struct alignment problems
Mike Becker <universe@uap-core.de>
parents: 40
diff changeset
90 uint8_t capture;
40
47162a7621da fixed Move struct size inconsistancy across plattforms
Mike Becker <universe@uap-core.de>
parents: 36
diff changeset
91 struct movetimeval timestamp;
47162a7621da fixed Move struct size inconsistancy across plattforms
Mike Becker <universe@uap-core.de>
parents: 36
diff changeset
92 struct movetimeval movetime;
49
02c509a44e98 logging string representation of moves in short algebraic notation
Mike Becker <universe@uap-core.de>
parents: 48
diff changeset
93 char string[8];
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
94 } Move;
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
95
23
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
96 typedef struct MoveList MoveList;
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
97
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
98 struct MoveList {
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
99 Move move;
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
100 MoveList* next;
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
101 };
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
102
30
a285ee393860 experimental async input for single machine mode
Mike Becker <universe@uap-core.de>
parents: 29
diff changeset
103
a285ee393860 experimental async input for single machine mode
Mike Becker <universe@uap-core.de>
parents: 29
diff changeset
104 typedef struct {
a285ee393860 experimental async input for single machine mode
Mike Becker <universe@uap-core.de>
parents: 29
diff changeset
105 uint8_t servercolor;
40
47162a7621da fixed Move struct size inconsistancy across plattforms
Mike Becker <universe@uap-core.de>
parents: 36
diff changeset
106 uint8_t timecontrol;
30
a285ee393860 experimental async input for single machine mode
Mike Becker <universe@uap-core.de>
parents: 29
diff changeset
107 uint16_t time;
a285ee393860 experimental async input for single machine mode
Mike Becker <universe@uap-core.de>
parents: 29
diff changeset
108 uint16_t addtime;
a285ee393860 experimental async input for single machine mode
Mike Becker <universe@uap-core.de>
parents: 29
diff changeset
109 } GameInfo;
a285ee393860 experimental async input for single machine mode
Mike Becker <universe@uap-core.de>
parents: 29
diff changeset
110
23
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
111 typedef struct {
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
112 Board board;
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
113 MoveList* movelist;
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
114 MoveList* lastmove;
27
efeb98bc69c9 moved checkmate and stalemate flags to gamestate
Mike Becker <universe@uap-core.de>
parents: 26
diff changeset
115 _Bool checkmate;
efeb98bc69c9 moved checkmate and stalemate flags to gamestate
Mike Becker <universe@uap-core.de>
parents: 26
diff changeset
116 _Bool stalemate;
50
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
117 _Bool remis;
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
118 _Bool resign;
23
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
119 } GameState;
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
120
25
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
121 #define opponent_color(color) ((color)==WHITE?BLACK:WHITE)
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
122
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
123 #define POS_UNSPECIFIED UINT8_MAX
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
124 #define mdst(b,m) b[(m)->torow][(m)->tofile]
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
125 #define msrc(b,m) b[(m)->fromrow][(m)->fromfile]
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
126
28
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
127 #define isidx(idx) ((uint8_t)(idx) < 8)
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
128
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
129 #define isfile(file) (file >= 'a' && file <= 'h')
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
130 #define isrow(row) (row >= '1' && row <= '8')
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
131
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
132 #define rowidx(row) (row-'1')
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
133 #define fileidx(file) (file-'a')
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
134
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
135 #define rowchr(row) (row+'1')
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
136 #define filechr(file) (file+'a')
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
137
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
138 #define chkidx(move) (isidx((move)->fromfile) && isidx((move)->fromrow) && \
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
139 isidx((move)->tofile) && isidx((move)->torow))
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
140
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
141 /* secure versions - use, if index is not checked with isidx() */
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
142 #define fileidx_s(c) (isfile(c)?fileidx(c):POS_UNSPECIFIED)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
143 #define rowidx_s(c) (isrow(c)?rowidx(c):POS_UNSPECIFIED)
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
144
50
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
145 #define is_game_running(gamestate) !((gamestate)->checkmate || \
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
146 (gamestate)->resign || (gamestate)->stalemate || (gamestate)->remis)
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
147
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
148
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
149 /**
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
150 * Initializes a game state and prepares the chess board.
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
151 * @param gamestate the game state to initialize
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
152 */
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
153 void gamestate_init(GameState *gamestate);
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
154
49
02c509a44e98 logging string representation of moves in short algebraic notation
Mike Becker <universe@uap-core.de>
parents: 48
diff changeset
155 /**
02c509a44e98 logging string representation of moves in short algebraic notation
Mike Becker <universe@uap-core.de>
parents: 48
diff changeset
156 * Cleans up a game state and frees the memory for the movement list.
02c509a44e98 logging string representation of moves in short algebraic notation
Mike Becker <universe@uap-core.de>
parents: 48
diff changeset
157 * @param gamestate the game state to clean up
02c509a44e98 logging string representation of moves in short algebraic notation
Mike Becker <universe@uap-core.de>
parents: 48
diff changeset
158 */
23
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
159 void gamestate_cleanup(GameState *gamestate);
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
160
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
161 /**
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
162 * Maps a character to a piece.
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
163 *
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
164 * Does not work for pawns, since they don't have a character.
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
165 *
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
166 * @param c one of R,N,B,Q,K
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
167 * @return numeric value for the specified piece
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
168 */
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
169 uint8_t getpiece(char c);
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
170
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
171 /**
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
172 * Maps a piece to a character.
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
173 *
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
174 * Does not work for pawns, scince they don't have a character.
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
175 *
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
176 * @param piece one of ROOK, KNIGHT, BISHOP, QUEEN, KING
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
177 * @return character value for the specified piece
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
178 */
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
179 char getpiecechr(uint8_t piece);
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
180
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
181 /**
25
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
182 * Checks, if a specified field is covered by a piece of a certain color.
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
183 *
29
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
184 * The out-parameters may both be NULL, but if any of them is set, the other
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
185 * must be set, too.
28
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
186 *
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
187 * @param gamestate the current game state
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
188 * @param row row of the field to check
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
189 * @param file file of the field to check
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
190 * @param color the color of the piece that should threaten the field
47
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
191 * @param threats the array where to store the threats (should be able to hold
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
192 * the rare maximum of 16 elements)
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
193 * @param threatcount a pointer to an uint8_t where the count of threats is
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
194 * stored
28
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
195 * @return TRUE, if any piece of the specified color threatens the specified
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
196 * field (i.e. could capture an opponent piece)
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
197 */
29
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
198 _Bool get_threats(GameState *gamestate, uint8_t row, uint8_t file,
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
199 uint8_t color, Move* threats, uint8_t* threatcount);
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
200
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
201 /**
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
202 * Checks, if a specified field is covered by a piece of a certain color AND
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
203 * if this piece is not pinned and therefore able to perform the move.
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
204 *
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
205 * The out-parameters may both be NULL, but if any of them is set, the other
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
206 * must be set, too.
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
207 *
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
208 * @param gamestate the current game state
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
209 * @param row row of the field to check
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
210 * @param file file of the field to check
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
211 * @param color the color of the piece that should threaten the field
47
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
212 * @param threats the array where to store the threats (should be able to hold
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
213 * the rare maximum of 16 elements)
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
214 * @param threatcount a pointer to an uint8_t where the count of threats is
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
215 * stored
29
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
216 * @return TRUE, if any piece of the specified color threatens the specified
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
217 * field (i.e. could capture an opponent piece)
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
218 */
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
219 _Bool get_real_threats(GameState *gamestate, uint8_t row, uint8_t file,
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
220 uint8_t color, Move* threats, uint8_t* threatcount);
28
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
221
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
222 /**
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
223 * Checks, if a specified field is covered by a piece of a certain color.
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
224 *
25
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
225 * @param gamestate the current game state
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
226 * @param row row of the field to check
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
227 * @param file file of the field to check
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
228 * @param color the color of the piece that should cover the field
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
229 * @return TRUE, if any piece of the specified color threatens the specified
29
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
230 * field
25
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
231 */
28
0c1371488d87 NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents: 27
diff changeset
232 #define is_covered(gamestate, row, file, color) \
29
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
233 get_threats(gamestate, row, file, color, NULL, NULL)
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
234
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
235 /**
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
236 * Checks, if a specified field is attacked by a piece of a certain color.
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
237 *
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
238 * I.e. the field is covered by a piece AND this piece is not pinned and
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
239 * therefore able to perform the move.
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
240 *
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
241 * @param gamestate the current game state
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
242 * @param row row of the field to check
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
243 * @param file file of the field to check
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
244 * @param color the color of the piece that should cover the field
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
245 * @return TRUE, if any piece of the specified color threatens the specified
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
246 * field and could capture an opponent piece
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
247 */
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
248 #define is_attacked(gamestate, row, file, color) \
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
249 get_threats(gamestate, row, file, color, NULL, NULL)
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
250
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
251 /**
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
252 * Checks, if a specified field is protected by a piece of a certain color.
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
253 *
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
254 * I.e. the field is covered by a piece that is NOT the king AND this piece is
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
255 * not pinned and therefore able to perform the move.
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
256 *
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
257 * @param gamestate the current game state
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
258 * @param row row of the field to check
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
259 * @param file file of the field to check
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
260 * @param color the color of the piece that should cover the field
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
261 * @return TRUE, if any piece (excluding the king) of the specified color
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
262 * threatens the specified field and could capture an opponent piece
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
263 */
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
264 _Bool is_protected(GameState *gamestate, uint8_t row, uint8_t file,
c6a1ad6cf749 fixed checkmate and completed implementation (more testing is still advised)
Mike Becker <universe@uap-core.de>
parents: 28
diff changeset
265 uint8_t color);
25
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
266
3ab0c2e1a4e2 implemented king
Mike Becker <universe@uap-core.de>
parents: 23
diff changeset
267 /**
47
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
268 * Checks, if the specified move cannot be performed, because the piece is
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
269 * either pinned or cannot remove the check.
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
270 *
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
271 * Note: in chess a piece is pinned, when it can't be moved because the move
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
272 * would result in a check position. But this function <u>also</u> returns true,
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
273 * if the king is already in check position and the specified move does not
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
274 * protect the king.
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
275 *
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
276 * @param gamestate the current game state
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
277 * @param move the move to check
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
278 * @return TRUE, if the move cannot be performed because the king would be in
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
279 * check after the move
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
280 */
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
281 _Bool is_pinned(GameState *gamestate, Move *move);
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
282
d726e4b46c33 refactoring of getlocation mechanism for better short algebraic notation support (does now respect pinned pieces) + fixed a bug where a pawn could advance through a piece (e.g. e2e4 could jump over a piece on e3)
Mike Becker <universe@uap-core.de>
parents: 41
diff changeset
283 /**
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
284 * Evaluates a move syntactically and stores the move data in the specified
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
285 * object.
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
286 *
23
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
287 * @param gamestate the current game state
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
288 * @param mstr the input string to parse
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
289 * @param move a pointer to object where the move data shall be stored
50
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
290 * @param color the color of the player to evaluate the move for
48
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
291 * @return status code (see macros in this file for the list of codes)
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
292 */
50
41017d0a72c5 added pgn parser and writer (without comment support yet) + minor refactorings
Mike Becker <universe@uap-core.de>
parents: 49
diff changeset
293 int eval_move(GameState *gamestate, char *mstr, Move *move, uint8_t color);
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
294
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
295 /**
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
296 * Validates move by applying chess rules.
23
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
297 * @param gamestate the current game state
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
298 * @param move the move to validate
48
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
299 * @return status code (see macros in this file for the list of codes)
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
300 */
48
0cedda2544da added return code to move validation (for more informative messages) + fixed a bug where simulations added movelist items to the original gamestate
Mike Becker <universe@uap-core.de>
parents: 47
diff changeset
301 int validate_move(GameState *gamestate, Move *move);
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
302
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
303 /**
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
304 * Applies a move and deletes captured pieces.
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
305 *
23
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
306 * @param gamestate the current game state
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
307 * @param move the move to apply
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
308 */
23
824c9522ce66 introduced game state structure
Mike Becker <universe@uap-core.de>
parents: 19
diff changeset
309 void apply_move(GameState *gamestate, Move *move);
19
6a26114297a1 moved chess rules to separate lib
Mike Becker <universe@uap-core.de>
parents: 18
diff changeset
310
33
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
311
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
312 /**
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
313 * Returns the remaining time on the clock for the specified player.
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
314 *
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
315 * @param gameinfo the information about the game
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
316 * @param gamestate the current game state
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
317 * @param color either BLACK or WHITE
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
318 * @return the remaining time - if time control is disabled, this function
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
319 * always returns zero
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
320 */
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
321 uint16_t remaining_movetime(GameInfo *gameinfo, GameState *gamestate,
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
322 uint8_t color);
866025982aa9 implemented time control
Mike Becker <universe@uap-core.de>
parents: 32
diff changeset
323
10
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
324 #endif /* RULES_H */
1347e4dabac0 prepared code base for implementing rules
Mike Becker <universe@uap-core.de>
parents:
diff changeset
325

mercurial