Mercurial > hg > terminal-chess / file comparison
comparison: src/game.c
src/game.c
- changeset 14
- 970748b9a73b
- parent 13
- faec61c4901f
- child 15
- 7ffd66591afe
equal
deleted
inserted
replaced
| 13:faec61c4901f | 14:970748b9a73b |
|---|---|
| 76 * | 76 * |
| 77 * @param board the current board state | 77 * @param board the current board state |
| 78 * @param move the move to apply | 78 * @param move the move to apply |
| 79 */ | 79 */ |
| 80 static void apply_move(Board board, Move *move) { | 80 static void apply_move(Board board, Move *move) { |
| 81 board[move->fromrow][move->fromfile] = 0; | 81 msrc(board, move) = 0; |
| 82 // TODO: care for en passant capture | 82 // TODO: care for en passant capture |
| 83 board[move->torow][move->tofile] = move->piece; | 83 mdst(board, move) = move->piece; |
| 84 | 84 |
| 85 /* castling */ | 85 /* castling */ |
| 86 if ((move->piece & PIECE_MASK) == KING && | 86 if ((move->piece & PIECE_MASK) == KING && |
| 87 move->fromfile == fileidx('e')) { | 87 move->fromfile == fileidx('e')) { |
| 88 uint8_t color = move->piece & COLOR_MASK; | 88 uint8_t color = move->piece & COLOR_MASK; |
| 110 if (!chkidx(move)) { | 110 if (!chkidx(move)) { |
| 111 return FALSE; | 111 return FALSE; |
| 112 } | 112 } |
| 113 | 113 |
| 114 /* does piece exist */ | 114 /* does piece exist */ |
| 115 result = board[move->fromrow][move->fromfile] == move->piece; | 115 result = msrc(board, move) == move->piece; |
| 116 | 116 |
| 117 /* can't capture own pieces */ | |
| 118 if ((mdst(board, move) & COLOR_MASK) == (move->piece & COLOR_MASK)) { | |
| 119 return FALSE; | |
| 120 } | |
| 121 | |
| 122 /* validate individual rules */ | |
| 117 switch (move->piece & PIECE_MASK) { | 123 switch (move->piece & PIECE_MASK) { |
| 118 case PAWN: | 124 case PAWN: |
| 119 result = result && pawn_chkrules(board, move); | 125 result = result && pawn_chkrules(board, move); |
| 120 result = result && !pawn_isblocked(board, move); | 126 result = result && !pawn_isblocked(board, move); |
| 121 break; | 127 break; |
| 245 if (!move->piece) { | 251 if (!move->piece) { |
| 246 move->piece = PAWN; | 252 move->piece = PAWN; |
| 247 move->fromfile = fileidx(mstr[0]); | 253 move->fromfile = fileidx(mstr[0]); |
| 248 } | 254 } |
| 249 } else { | 255 } else { |
| 250 /* move (e.g. "Ndf3") */ | 256 /* move (e.g. "Ndf3", "N2c3") */ |
| 251 move->fromfile = fileidx(mstr[1]); | 257 move->fromfile = isfile(mstr[1]) ? |
| 258 fileidx(mstr[1]) : rowidx(mstr[1]); | |
| 252 } | 259 } |
| 253 move->tofile = fileidx(mstr[2]); | 260 move->tofile = fileidx(mstr[2]); |
| 254 move->torow = rowidx(mstr[3]); | 261 move->torow = rowidx(mstr[3]); |
| 255 } else if (len == 5) { | 262 } else if (len == 5) { |
| 256 if (strcmp(mstr, "O-O-O") == 0) { | 263 if (strcmp(mstr, "O-O-O") == 0) { |
| 364 } else { | 371 } else { |
| 365 apply_move(board, &move); | 372 apply_move(board, &move); |
| 366 if (move.checkmate) { | 373 if (move.checkmate) { |
| 367 printw("Checkmate!"); | 374 printw("Checkmate!"); |
| 368 return 1; | 375 return 1; |
| 376 } else { | |
| 377 return 0; | |
| 369 } | 378 } |
| 370 } | 379 } |
| 371 } else { | 380 } else { |
| 372 printw("Can't interpret move - please use algebraic notation."); | 381 printw("Can't interpret move - please use algebraic notation."); |
| 373 } | 382 } |
