Mercurial > hg > terminal-chess / file comparison
comparison: src/chess/rook.c
src/chess/rook.c
- changeset 169
- 9962f5d98764
- parent 163
- 2a6d83f4677e
- child 170
- bde99d803caf
equal
deleted
inserted
replaced
| 168:663676cfef6e | 169:9962f5d98764 |
|---|---|
| 56 } | 56 } |
| 57 } | 57 } |
| 58 | 58 |
| 59 return false; | 59 return false; |
| 60 } | 60 } |
| 61 | |
| 62 size_t rook_moves(GameState *gamestate, Color c, Row r, File f, Move *moves) { | |
| 63 size_t count = 0; | |
| 64 const int directions[4][2] = { | |
| 65 { 1, 0}, | |
| 66 {-1, 0}, | |
| 67 { 0, 1}, | |
| 68 { 0, -1} | |
| 69 }; | |
| 70 | |
| 71 for (size_t i = 0 ; i < 4 ; i++) { | |
| 72 int row = r + directions[i][0]; | |
| 73 int file = f + directions[i][1]; | |
| 74 | |
| 75 while (isidx(row) && isidx(file)) { | |
| 76 moves[count] = (Move){0}; | |
| 77 moves[count].piece = mkpiece(ROOK, c); | |
| 78 moves[count].fromrow = r; | |
| 79 moves[count].fromfile = f; | |
| 80 moves[count].torow = row; | |
| 81 moves[count].tofile = file; | |
| 82 moves[count].capture = piece_at(gamestate, row, file) != 0; | |
| 83 count++; | |
| 84 | |
| 85 row += directions[i][0]; | |
| 86 file += directions[i][1]; | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 return count; | |
| 91 } |
