Mercurial > hg > terminal-chess / file comparison
comparison: src/chess/rules.h
src/chess/rules.h
- changeset 78
- ceb9197b3c6d
- parent 69
- c8f2c280cff7
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| 77:808a7324b467 | 78:ceb9197b3c6d |
|---|---|
| 28 */ | 28 */ |
| 29 | 29 |
| 30 #ifndef RULES_H | 30 #ifndef RULES_H |
| 31 #define RULES_H | 31 #define RULES_H |
| 32 | 32 |
| 33 #include "game-info.h" | |
| 34 | |
| 33 #include <stdint.h> | 35 #include <stdint.h> |
| 34 #include <sys/time.h> | |
| 35 | 36 |
| 36 #define VALID_MOVE_SYNTAX 0 | 37 #define VALID_MOVE_SYNTAX 0 |
| 37 #define VALID_MOVE_SEMANTICS 0 /* use same code for a success */ | 38 #define VALID_MOVE_SEMANTICS 0 /* use same code for a success */ |
| 38 #define INVALID_MOVE_SYNTAX 1 | 39 #define INVALID_MOVE_SYNTAX 1 |
| 39 #define INVALID_POSITION 2 | 40 #define INVALID_POSITION 2 |
| 42 #define PIECE_PINNED 5 | 43 #define PIECE_PINNED 5 |
| 43 #define KING_IN_CHECK 6 | 44 #define KING_IN_CHECK 6 |
| 44 #define KING_MOVES_INTO_CHECK 7 | 45 #define KING_MOVES_INTO_CHECK 7 |
| 45 #define RULES_VIOLATED 10 | 46 #define RULES_VIOLATED 10 |
| 46 | 47 |
| 47 | |
| 48 #define PIECE_MASK 0x0F | |
| 49 #define COLOR_MASK 0x30 | |
| 50 #define ENPASSANT_THREAT 0x40 | 48 #define ENPASSANT_THREAT 0x40 |
| 51 | |
| 52 #define WHITE 0x10 | |
| 53 #define BLACK 0x20 | |
| 54 | |
| 55 #define PAWN 0x01 | |
| 56 #define ROOK 0x02 | |
| 57 #define KNIGHT 0x03 | |
| 58 #define BISHOP 0x04 | |
| 59 #define QUEEN 0x05 | |
| 60 #define KING 0x06 | |
| 61 | |
| 62 #define WPAWN (WHITE|PAWN) | |
| 63 #define WROOK (WHITE|ROOK) | |
| 64 #define WKNIGHT (WHITE|KNIGHT) | |
| 65 #define WBISHOP (WHITE|BISHOP) | |
| 66 #define WQUEEN (WHITE|QUEEN) | |
| 67 #define WKING (WHITE|KING) | |
| 68 #define BPAWN (BLACK|PAWN) | |
| 69 #define BROOK (BLACK|ROOK) | |
| 70 #define BKNIGHT (BLACK|KNIGHT) | |
| 71 #define BBISHOP (BLACK|BISHOP) | |
| 72 #define BQUEEN (BLACK|QUEEN) | |
| 73 #define BKING (BLACK|KING) | |
| 74 | |
| 75 typedef uint8_t Board[8][8]; | |
| 76 | |
| 77 struct movetimeval { | |
| 78 uint64_t tv_sec; | |
| 79 int32_t tv_usec; | |
| 80 }; | |
| 81 | |
| 82 typedef struct { | |
| 83 uint8_t piece; | |
| 84 uint8_t fromfile; | |
| 85 uint8_t fromrow; | |
| 86 uint8_t tofile; | |
| 87 uint8_t torow; | |
| 88 uint8_t promotion; | |
| 89 uint8_t check; | |
| 90 uint8_t capture; | |
| 91 struct movetimeval timestamp; | |
| 92 struct movetimeval movetime; | |
| 93 char string[8]; | |
| 94 } Move; | |
| 95 | |
| 96 typedef struct MoveList MoveList; | |
| 97 | |
| 98 struct MoveList { | |
| 99 Move move; | |
| 100 MoveList* next; | |
| 101 }; | |
| 102 | |
| 103 | |
| 104 typedef struct { | |
| 105 uint8_t servercolor; | |
| 106 uint8_t timecontrol; | |
| 107 uint16_t time; | |
| 108 uint16_t addtime; | |
| 109 } GameInfo; | |
| 110 | |
| 111 typedef struct { | |
| 112 Board board; | |
| 113 MoveList* movelist; | |
| 114 MoveList* lastmove; | |
| 115 unsigned int movecount; /* number of (half-)moves (counting BOTH colors) */ | |
| 116 _Bool checkmate; | |
| 117 _Bool stalemate; | |
| 118 _Bool remis; | |
| 119 _Bool resign; | |
| 120 } GameState; | |
| 121 | |
| 122 #define opponent_color(color) ((color)==WHITE?BLACK:WHITE) | |
| 123 | 49 |
| 124 #define POS_UNSPECIFIED UINT8_MAX | 50 #define POS_UNSPECIFIED UINT8_MAX |
| 125 #define mdst(b,m) b[(m)->torow][(m)->tofile] | 51 #define mdst(b,m) b[(m)->torow][(m)->tofile] |
| 126 #define msrc(b,m) b[(m)->fromrow][(m)->fromfile] | 52 #define msrc(b,m) b[(m)->fromrow][(m)->fromfile] |
| 127 | 53 |
| 140 isidx((move)->tofile) && isidx((move)->torow)) | 66 isidx((move)->tofile) && isidx((move)->torow)) |
| 141 | 67 |
| 142 /* secure versions - use, if index is not checked with isidx() */ | 68 /* secure versions - use, if index is not checked with isidx() */ |
| 143 #define fileidx_s(c) (isfile(c)?fileidx(c):POS_UNSPECIFIED) | 69 #define fileidx_s(c) (isfile(c)?fileidx(c):POS_UNSPECIFIED) |
| 144 #define rowidx_s(c) (isrow(c)?rowidx(c):POS_UNSPECIFIED) | 70 #define rowidx_s(c) (isrow(c)?rowidx(c):POS_UNSPECIFIED) |
| 145 | |
| 146 #define is_game_running(gamestate) !((gamestate)->checkmate || \ | |
| 147 (gamestate)->resign || (gamestate)->stalemate || (gamestate)->remis) | |
| 148 | |
| 149 | |
| 150 /** | |
| 151 * Initializes a game state and prepares the chess board. | |
| 152 * @param gamestate the game state to initialize | |
| 153 */ | |
| 154 void gamestate_init(GameState *gamestate); | |
| 155 | |
| 156 /** | |
| 157 * Cleans up a game state and frees the memory for the movement list. | |
| 158 * @param gamestate the game state to clean up | |
| 159 */ | |
| 160 void gamestate_cleanup(GameState *gamestate); | |
| 161 | 71 |
| 162 /** | 72 /** |
| 163 * Maps a character to a piece. | 73 * Maps a character to a piece. |
| 164 * | 74 * |
| 165 * Does not work for pawns, since they don't have a character. | 75 * Does not work for pawns, since they don't have a character. |
