Mercurial > hg > terminal-chess / file comparison
comparison: src/chess/rules.h
src/chess/rules.h
- changeset 131
- c33567d61ba7
- parent 130
- 3fc6b1d6cbe9
equal
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inserted
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| 130:3fc6b1d6cbe9 | 131:c33567d61ba7 |
|---|---|
| 123 unsigned int movecount; | 123 unsigned int movecount; |
| 124 /** a premove that shall be evaluated next time it's our turn */ | 124 /** a premove that shall be evaluated next time it's our turn */ |
| 125 char premove[8]; | 125 char premove[8]; |
| 126 bool checkmate; | 126 bool checkmate; |
| 127 bool stalemate; | 127 bool stalemate; |
| 128 bool threefold; | |
| 128 bool remis; | 129 bool remis; |
| 129 bool wresign; | 130 bool wresign; |
| 130 bool bresign; | 131 bool bresign; |
| 131 /** this flag is only supposed to be set when the opponent disconnects */ | 132 /** this flag is only supposed to be set when the opponent disconnects */ |
| 132 bool ragequit; | 133 bool ragequit; |
| 133 bool review; | 134 bool review; |
| 134 } GameState; | 135 } GameState; |
| 135 | 136 |
| 136 #define is_game_running(gamestate) !((gamestate)->checkmate || \ | 137 #define is_game_running(gamestate) !((gamestate)->checkmate || \ |
| 137 (gamestate)->wresign || (gamestate)->bresign || \ | 138 (gamestate)->wresign || (gamestate)->bresign || (gamestate)->threefold || \ |
| 138 (gamestate)->stalemate || (gamestate)->remis || (gamestate)->review) | 139 (gamestate)->stalemate || (gamestate)->remis || (gamestate)->review) |
| 139 | 140 |
| 140 #define last_move(gamestate) \ | 141 #define last_move(gamestate) \ |
| 141 ((gamestate)->moves[(gamestate)->movecount-1]) | 142 ((gamestate)->moves[(gamestate)->movecount-1]) |
| 142 | 143 |
| 393 * @param str the target buffer (should be at least 10 chars large) | 394 * @param str the target buffer (should be at least 10 chars large) |
| 394 * @param always_hours if hours should always be printed | 395 * @param always_hours if hours should always be printed |
| 395 */ | 396 */ |
| 396 int print_clk(uint16_t time, char *str, bool always_hours); | 397 int print_clk(uint16_t time, char *str, bool always_hours); |
| 397 | 398 |
| 399 /** | |
| 400 * Checks if the current position already appeared two times before. | |
| 401 * | |
| 402 * This does not set the threefold flag in the game state as this flag is | |
| 403 * intended to be set only when the game ends after actually claiming a draw. | |
| 404 * | |
| 405 * By standard chess rules this is not automatically a draw. | |
| 406 * But implementation may choose to automatically draw the game anyway. | |
| 407 * | |
| 408 * @param gamestate the current game state | |
| 409 * @return true if the game is in a threefold repetition position | |
| 410 */ | |
| 411 bool check_threefold_repetition(GameState *gamestate); | |
| 412 | |
| 398 #endif /* RULES_H */ | 413 #endif /* RULES_H */ |
| 399 | 414 |
