Mercurial > hg > terminal-chess / file comparison
comparison: src/chess/rules.c
src/chess/rules.c
- changeset 154
- 5336e985bd69
- parent 153
- bad2d6d4b861
- child 155
- 835776e0338f
equal
deleted
inserted
replaced
| 153:bad2d6d4b861 | 154:5336e985bd69 |
|---|---|
| 348 } | 348 } |
| 349 | 349 |
| 350 /* does piece exist */ | 350 /* does piece exist */ |
| 351 if ((msrc(gamestate->board, move)&(PIECE_MASK|COLOR_MASK)) | 351 if ((msrc(gamestate->board, move)&(PIECE_MASK|COLOR_MASK)) |
| 352 != (move->piece&(PIECE_MASK|COLOR_MASK))) { | 352 != (move->piece&(PIECE_MASK|COLOR_MASK))) { |
| 353 return INVALID_POSITION; | 353 return PIECE_NOT_FOUND; |
| 354 } | 354 } |
| 355 | 355 |
| 356 /* can't capture own pieces */ | 356 /* can't capture own pieces */ |
| 357 if ((mdst(gamestate->board, move) & COLOR_MASK) | 357 if ((mdst(gamestate->board, move) & COLOR_MASK) |
| 358 == (move->piece & COLOR_MASK)) { | 358 == (move->piece & COLOR_MASK)) { |
| 681 uint8_t threatcount; | 681 uint8_t threatcount; |
| 682 | 682 |
| 683 if (get_threats(gamestate, move->torow, move->tofile, color, | 683 if (get_threats(gamestate, move->torow, move->tofile, color, |
| 684 threats, &threatcount)) { | 684 threats, &threatcount)) { |
| 685 | 685 |
| 686 int reason = INVALID_POSITION; | 686 int reason = PIECE_NOT_FOUND; |
| 687 | 687 |
| 688 /* find threats for the specified position */ | 688 /* find threats for the specified position */ |
| 689 for (uint8_t i = 0 ; i < threatcount ; i++) { | 689 for (uint8_t i = 0 ; i < threatcount ; i++) { |
| 690 if (threats[i].piece == move->piece && | 690 if (threats[i].piece == move->piece && |
| 691 (move->fromrow == POS_UNSPECIFIED || | 691 (move->fromrow == POS_UNSPECIFIED || |
| 716 /* found a threat, copy the source location */ | 716 /* found a threat, copy the source location */ |
| 717 move->fromrow = threat->fromrow; | 717 move->fromrow = threat->fromrow; |
| 718 move->fromfile = threat->fromfile; | 718 move->fromfile = threat->fromfile; |
| 719 return VALID_MOVE_SYNTAX; | 719 return VALID_MOVE_SYNTAX; |
| 720 } else { | 720 } else { |
| 721 return INVALID_POSITION; | 721 return PIECE_NOT_FOUND; |
| 722 } | 722 } |
| 723 } | 723 } |
| 724 | 724 |
| 725 static int eval_move1(const char *pstr, Move *move, uint8_t color) { | 725 static int eval_move1(const char *pstr, Move *move, uint8_t color) { |
| 726 memset(move, 0, sizeof(Move)); | 726 memset(move, 0, sizeof(Move)); |
