Mercurial > hg > terminal-chess / file comparison
comparison: src/chess/rules.c
src/chess/rules.c
- changeset 25
- 3ab0c2e1a4e2
- parent 23
- 824c9522ce66
- child 27
- efeb98bc69c9
equal
deleted
inserted
replaced
| 24:4d030da07c88 | 25:3ab0c2e1a4e2 |
|---|---|
| 88 case KING: return king_getlocation(gamestate, move); | 88 case KING: return king_getlocation(gamestate, move); |
| 89 default: return INVALID_MOVE_SYNTAX; | 89 default: return INVALID_MOVE_SYNTAX; |
| 90 } | 90 } |
| 91 } | 91 } |
| 92 | 92 |
| 93 _Bool is_covered(GameState *gamestate,uint8_t row,uint8_t file,uint8_t color) { | |
| 94 Move threats[16]; | |
| 95 int threatcount = 0; | |
| 96 for (uint8_t r = 0 ; r < 8 ; r++) { | |
| 97 for (uint8_t f = 0 ; f < 8 ; f++) { | |
| 98 if ((gamestate->board[r][f] & COLOR_MASK) == color) { | |
| 99 threats[threatcount].piece = gamestate->board[r][f]; | |
| 100 threats[threatcount].fromrow = r; | |
| 101 threats[threatcount].fromfile = f; | |
| 102 threats[threatcount].torow = row; | |
| 103 threats[threatcount].tofile = file; | |
| 104 threatcount++; | |
| 105 } | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 for (int i = 0 ; i < threatcount ; i++) { | |
| 110 if (validate_move(gamestate, &(threats[i]))) { | |
| 111 return 1; | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 return 0; | |
| 116 } | |
| 93 | 117 |
| 94 void apply_move(GameState *gamestate, Move *move) { | 118 void apply_move(GameState *gamestate, Move *move) { |
| 95 uint8_t piece = move->piece & PIECE_MASK; | 119 uint8_t piece = move->piece & PIECE_MASK; |
| 96 uint8_t color = move->piece & COLOR_MASK; | 120 uint8_t color = move->piece & COLOR_MASK; |
| 97 | 121 |
| 188 break; | 212 break; |
| 189 default: | 213 default: |
| 190 result = 0; | 214 result = 0; |
| 191 } | 215 } |
| 192 | 216 |
| 217 /* cancel processing to avoid recursion overflow with is_covered() */ | |
| 218 if (!result) { | |
| 219 return 0; | |
| 220 } | |
| 221 | |
| 193 /* is piece pinned */ | 222 /* is piece pinned */ |
| 194 // TODO: make it so | 223 // TODO: make it so |
| 195 | 224 |
| 196 /* correct check and checkmate flags */ | 225 /* correct check and checkmate flags (move is still valid) */ |
| 197 // TODO: make it so | 226 // TODO: make it so |
| 198 | 227 |
| 199 return result; | 228 return result; |
| 200 } | 229 } |
| 201 | 230 |
