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Add move_gen function
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Josh
2025-08-17 12:17:51 -04:00
parent 362048d630
commit 5a25eba8f6
2 changed files with 39 additions and 2 deletions
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10
engine/include/bitboard.h
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@@ -106,4 +106,12 @@ void create_knight_attack_cache();
void create_pawn_attack_cache(); void create_pawn_attack_cache();
void create_king_attack_cache(); void create_king_attack_cache();
void print_board(); void print_board();
int gen_pseudo_moves(struct Board *b, struct Move *out, bool captures_only); void gen_white_pawn_quiet_pushes(const struct Board *board, struct Move *moves, int *count);
void gen_black_pawn_quiet_pushes(const struct Board *board, struct Move *moves, int *count);
void gen_white_pawn_push_promotions(const struct Board *board, struct Move *moves, int *count);
void gen_black_pawn_push_promotions(const struct Board *board, struct Move *moves, int *count);
void gen_white_pawn_captures(const struct Board *board, struct Move *moves, int *count);
void gen_black_pawn_captures(const struct Board *board, struct Move *moves, int *count);
void gen_white_pawn_capture_promotions(const struct Board *board, struct Move *moves, int *count);
void gen_black_pawn_capture_promotions(const struct Board *board, struct Move *moves, int *count);
int gen_pseudo_moves(const struct Board *board, struct Move *out, bool captures_only);

31
engine/src/bitboard.c
View File

@@ -458,7 +458,7 @@ void gen_queen_moves(const struct Board *board, struct Move *out, int *count, bo
} }
} }
void gen_king_moves(struct Board *board, struct Move *out, int *count, bool captures_only) { void gen_king_moves(const struct Board *board, struct Move *out, int *count, bool captures_only) {
enum Color side = board->side_to_move; enum Color side = board->side_to_move;
uint64_t own = board->occ[side]; uint64_t own = board->occ[side];
uint64_t opp = board->occ[side ^ 1]; uint64_t opp = board->occ[side ^ 1];
@@ -502,6 +502,35 @@ void gen_king_moves(struct Board *board, struct Move *out, int *count, bool capt
} }
} }
int gen_pseudo_moves(const struct Board *board, struct Move *moves, bool captures_only) {
int count = 0;
if (board->side_to_move == WHITE) {
if (!captures_only) {
gen_white_pawn_quiet_pushes(board, moves, &count);
gen_white_pawn_push_promotions(board, moves, &count);
}
gen_white_pawn_captures(board, moves, &count);
gen_white_pawn_capture_promotions(board, moves, &count);
} else {
if (!captures_only) {
gen_black_pawn_quiet_pushes(board, moves, &count);
gen_black_pawn_push_promotions(board, moves, &count);
}
gen_black_pawn_captures(board, moves, &count);
gen_black_pawn_capture_promotions(board, moves, &count);
}
gen_knight_moves(board, moves, &count, captures_only);
gen_king_moves(board, moves, &count, captures_only);
gen_rook_moves(board, moves, &count, captures_only);
gen_bishop_moves(board, moves, &count, captures_only);
gen_queen_moves(board, moves, &count, captures_only);
return count;
}
void print_board(const struct Board *board) { void print_board(const struct Board *board) {
const char PIECE_CH[12] = { const char PIECE_CH[12] = {
'P','N','B','R','Q','K', 'P','N','B','R','Q','K',