Mercurial > hg > terminal-chess / file comparison
comparison: src/chess/king.c
src/chess/king.c
- changeset 169
- 9962f5d98764
- parent 163
- 2a6d83f4677e
- child 170
- bde99d803caf
equal
deleted
inserted
replaced
| 168:663676cfef6e | 169:9962f5d98764 |
|---|---|
| 27 * | 27 * |
| 28 */ | 28 */ |
| 29 | 29 |
| 30 #include "rules.h" | 30 #include "rules.h" |
| 31 #include "king.h" | 31 #include "king.h" |
| 32 | |
| 33 #include <string.h> | |
| 34 | 32 |
| 35 static bool king_castling_chkmoved( | 33 static bool king_castling_chkmoved( |
| 36 const GameState *gamestate, Row row, File file) { | 34 const GameState *gamestate, Row row, File file) { |
| 37 | 35 |
| 38 for (unsigned i = 0; i < gamestate->movecount; i++) { | 36 for (unsigned i = 0; i < gamestate->movecount; i++) { |
| 87 is_covered(gamestate, move->torow, midfile, opponent_color); | 85 is_covered(gamestate, move->torow, midfile, opponent_color); |
| 88 } | 86 } |
| 89 | 87 |
| 90 return blocked; | 88 return blocked; |
| 91 } | 89 } |
| 90 | |
| 91 size_t king_moves(GameState *gamestate, Color c, Row r, File f, Move *moves) { | |
| 92 | |
| 93 size_t count = 0; | |
| 94 Piece king = mkpiece(KING, c); | |
| 95 | |
| 96 for (int dr = -1 ; dr <= 1 ; dr++) { | |
| 97 for (int df = -1 ; df <= 1 ; df++) { | |
| 98 if (dr == 0 && df == 0) { | |
| 99 continue; | |
| 100 } | |
| 101 | |
| 102 Row torow = r + dr; | |
| 103 File tofile = f + df; | |
| 104 | |
| 105 if (!isidx(torow) || !isidx(tofile)) { | |
| 106 continue; | |
| 107 } | |
| 108 | |
| 109 moves[count] = (Move){0}; | |
| 110 moves[count].piece = king; | |
| 111 moves[count].fromrow = r; | |
| 112 moves[count].fromfile = f; | |
| 113 moves[count].torow = torow; | |
| 114 moves[count].tofile = tofile; | |
| 115 moves[count].capture = piece_at(gamestate, torow, tofile) != 0; | |
| 116 count++; | |
| 117 } | |
| 118 } | |
| 119 | |
| 120 Row homerow = c == WHITE ? 0 : 7; | |
| 121 if (r == homerow && f == fileidx('e')) { | |
| 122 moves[count] = (Move){0}; | |
| 123 moves[count].piece = king; | |
| 124 moves[count].fromrow = r; | |
| 125 moves[count].fromfile = f; | |
| 126 moves[count].torow = r; | |
| 127 moves[count].tofile = fileidx('c'); | |
| 128 count++; | |
| 129 | |
| 130 moves[count] = (Move){0}; | |
| 131 moves[count].piece = king; | |
| 132 moves[count].fromrow = r; | |
| 133 moves[count].fromfile = f; | |
| 134 moves[count].torow = r; | |
| 135 moves[count].tofile = fileidx('g'); | |
| 136 count++; | |
| 137 } | |
| 138 | |
| 139 return count; | |
| 140 } |
