Mercurial > hg > terminal-chess / file comparison
comparison: src/chess/rules.c
src/chess/rules.c
- changeset 216
- d0c3d3016650
- parent 201
- b61c2b90f19c
equal
deleted
inserted
replaced
| 215:d20887f0e8b3 | 216:d0c3d3016650 |
|---|---|
| 344 (move->fromrank == 6 && move->torank == 4))) { | 344 (move->fromrank == 6 && move->torank == 4))) { |
| 345 enpassant_threat_add(gamestate, move->tofile, move->torank); | 345 enpassant_threat_add(gamestate, move->tofile, move->torank); |
| 346 } | 346 } |
| 347 | 347 |
| 348 /* castling */ | 348 /* castling */ |
| 349 bool castling_happend = false; | |
| 349 if (piece_type(move->piece) == KING && move->fromfile == fileidx('e')) { | 350 if (piece_type(move->piece) == KING && move->fromfile == fileidx('e')) { |
| 350 const Color color = piece_color(move->piece); | 351 const Color color = piece_color(move->piece); |
| 351 if (move->tofile == fileidx('g')) { | 352 if (move->tofile == fileidx('g')) { |
| 352 gamestate->board[move->torank][fileidx('h')] = 0; | 353 gamestate->board[move->torank][fileidx('h')] = 0; |
| 353 gamestate->board[move->torank][fileidx('f')] = mkpiece(ROOK, color); | 354 gamestate->board[move->torank][fileidx('f')] = mkpiece(ROOK, color); |
| 355 castling_happend = true; | |
| 354 } else if (move->tofile == fileidx('c')) { | 356 } else if (move->tofile == fileidx('c')) { |
| 355 gamestate->board[move->torank][fileidx('a')] = 0; | 357 gamestate->board[move->torank][fileidx('a')] = 0; |
| 356 gamestate->board[move->torank][fileidx('d')] = mkpiece(ROOK, color); | 358 gamestate->board[move->torank][fileidx('d')] = mkpiece(ROOK, color); |
| 359 castling_happend = true; | |
| 360 } | |
| 361 } | |
| 362 if (castling_happend) { | |
| 363 if (piece_color(move->piece) == WHITE) { | |
| 364 gamestate->castling.K = true; | |
| 365 gamestate->castling.Q = true; | |
| 366 } else { | |
| 367 gamestate->castling.k = true; | |
| 368 gamestate->castling.q = true; | |
| 369 } | |
| 370 } else { | |
| 371 if (piece_color(move->piece) == WHITE) { | |
| 372 if (move->fromrank == rankidx('1')) { | |
| 373 if (move->fromfile == fileidx('e')) { | |
| 374 gamestate->castling.K = gamestate->castling.Q = true; | |
| 375 } else if (move->fromfile == fileidx('h')) { | |
| 376 gamestate->castling.K = true; | |
| 377 } else if (move->fromfile == fileidx('a')) { | |
| 378 gamestate->castling.Q = true; | |
| 379 } | |
| 380 } | |
| 381 } else { | |
| 382 if (move->fromrank == rankidx('8')) { | |
| 383 if (move->fromfile == fileidx('e')) { | |
| 384 gamestate->castling.k = gamestate->castling.q = true; | |
| 385 } else if (move->fromfile == fileidx('h')) { | |
| 386 gamestate->castling.k = true; | |
| 387 } else if (move->fromfile == fileidx('a')) { | |
| 388 gamestate->castling.q = true; | |
| 389 } | |
| 390 } | |
| 357 } | 391 } |
| 358 } | 392 } |
| 359 | 393 |
| 360 /* add move to the moves array and the new position to the FEN array */ | 394 /* add move to the moves array and the new position to the FEN array */ |
| 361 if (gamestate->movecount == gamestate->movecapacity) { | 395 if (gamestate->movecount == gamestate->movecapacity) { |
| 939 } | 973 } |
| 940 | 974 |
| 941 static int getlocation(const GameState *gamestate, Move *move) { | 975 static int getlocation(const GameState *gamestate, Move *move) { |
| 942 | 976 |
| 943 Color color = piece_color(move->piece); | 977 Color color = piece_color(move->piece); |
| 944 bool incheck = false; | 978 |
| 945 if (gamestate->movecount > 0) { | |
| 946 incheck = is_check_position(gamestate); | |
| 947 } | |
| 948 | |
| 949 Move candidates[16], *candidate = NULL; | 979 Move candidates[16], *candidate = NULL; |
| 950 size_t candidatecount; | 980 size_t candidatecount; |
| 951 | 981 |
| 952 /* determine all candidate moves and sort out the invalid ones */ | 982 /* determine all candidate moves and sort out the invalid ones */ |
| 953 if (get_candidates(gamestate, move->tofile, move->torank, color, | 983 if (get_candidates(gamestate, move->tofile, move->torank, color, |
| 981 /* no valid candidate left */ | 1011 /* no valid candidate left */ |
| 982 if (!candidate) { | 1012 if (!candidate) { |
| 983 if (found) { | 1013 if (found) { |
| 984 if (piece_type(move->piece) == KING) { | 1014 if (piece_type(move->piece) == KING) { |
| 985 return KING_MOVES_INTO_CHECK; | 1015 return KING_MOVES_INTO_CHECK; |
| 986 } else if (incheck) { | 1016 } else if (is_check_position(gamestate)) { |
| 987 return KING_IN_CHECK; | 1017 return KING_IN_CHECK; |
| 988 } else { | 1018 } else { |
| 989 return PIECE_PINNED; | 1019 return PIECE_PINNED; |
| 990 } | 1020 } |
| 991 } else { | 1021 } else { |
