Mercurial > hg > terminal-chess / file comparison
comparison: src/chess/rook.c
src/chess/rook.c
- changeset 80
- b980a7192b5a
- parent 55
- 54ea19938d57
equal
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inserted
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| 79:ffd452cf05ff | 80:b980a7192b5a |
|---|---|
| 28 */ | 28 */ |
| 29 | 29 |
| 30 #include "rules.h" | 30 #include "rules.h" |
| 31 #include "rook.h" | 31 #include "rook.h" |
| 32 | 32 |
| 33 _Bool rook_chkrules(Move *move) { | 33 bool rook_chkrules(Move *move) { |
| 34 return move->torow == move->fromrow || move->tofile == move->fromfile; | 34 return move->torow == move->fromrow || move->tofile == move->fromfile; |
| 35 } | 35 } |
| 36 | 36 |
| 37 _Bool rook_isblocked(GameState *gamestate, Move *move) { | 37 bool rook_isblocked(GameState *gamestate, Move *move) { |
| 38 | 38 |
| 39 if (move->torow == move->fromrow) { | 39 if (move->torow == move->fromrow) { |
| 40 int d = move->tofile > move->fromfile ? 1 : -1; | 40 int d = move->tofile > move->fromfile ? 1 : -1; |
| 41 uint8_t f = move->fromfile; | 41 uint8_t f = move->fromfile; |
| 42 while (f != move->tofile-d) { | 42 while (f != move->tofile-d) { |
| 43 f += d; | 43 f += d; |
| 44 if (gamestate->board[move->fromrow][f]) { | 44 if (gamestate->board[move->fromrow][f]) { |
| 45 return 1; | 45 return true; |
| 46 } | 46 } |
| 47 } | 47 } |
| 48 } else { | 48 } else { |
| 49 int d = move->torow > move->fromrow ? 1 : -1; | 49 int d = move->torow > move->fromrow ? 1 : -1; |
| 50 uint8_t r = move->fromrow; | 50 uint8_t r = move->fromrow; |
| 51 while (r != move->torow - d) { | 51 while (r != move->torow - d) { |
| 52 r += d; | 52 r += d; |
| 53 if (gamestate->board[r][move->fromfile]) { | 53 if (gamestate->board[r][move->fromfile]) { |
| 54 return 1; | 54 return true; |
| 55 } | 55 } |
| 56 } | 56 } |
| 57 } | 57 } |
| 58 | 58 |
| 59 return 0; | 59 return false; |
| 60 } | 60 } |
