stellarUCI Chess engine written in C++20 |
| git clone git://git.dimitrijedobrota.com/stellar.git |
| Log | Files | Refs | README | LICENSE |
move.hpp (2427B)
0 #ifndef STELLAR_MOVES_H 1 #define STELLAR_MOVES_H 2 3 #include "board.hpp" 4 #include "piece.hpp" 5 #include "utils.hpp" 6 7 #include <iostream> 8 #include <vector> 9 10 struct Move { 11 enum Flag : uint8_t { 12 QUIET, 13 DOUBLE, 14 CASTLEK, 15 CASTLEQ, 16 CAPTURE, 17 ENPASSANT, 18 PQUIET, 19 PKNIGHT = 8, 20 PBISHOP, 21 PROOK, 22 PQUEEN, 23 PCKNIGHT, 24 PCBISHOP, 25 PCROOK, 26 PCQUEEN, 27 }; 28 29 Move() : source_i(0), target_i(0), flags_i(0) {} 30 Move(Square source, Square target, Flag flags) : source_i(source), target_i(target), flags_i(flags) {} 31 32 friend bool operator==(const Move a, const Move b) { 33 return a.source_i == b.source_i && a.target_i == b.target_i && a.flags_i == b.flags_i; 34 } 35 36 [[nodiscard]] constexpr Square source() const { return static_cast<Square>(source_i); } 37 [[nodiscard]] constexpr Square target() const { return static_cast<Square>(target_i); } 38 39 [[nodiscard]] constexpr bool is_capture() const { return flags_i != PQUIET && (flags_i & CAPTURE); } 40 [[nodiscard]] constexpr bool is_promote() const { return flags_i & 0x8; } 41 42 [[nodiscard]] constexpr bool is_double() const { return flags_i == DOUBLE; } 43 [[nodiscard]] constexpr bool is_repeatable() const { return flags_i == QUIET; } 44 [[nodiscard]] constexpr bool is_quiet() const { return flags_i == QUIET || flags_i == PQUIET; } 45 46 [[nodiscard]] constexpr bool is_castle() const { return flags_i == CASTLEK || flags_i == CASTLEQ; } 47 [[nodiscard]] constexpr bool is_castle_king() const { return flags_i == CASTLEK; } 48 [[nodiscard]] constexpr bool is_castle_queen() const { return flags_i == CASTLEQ; } 49 50 [[nodiscard]] constexpr bool is_enpassant() const { return flags_i == ENPASSANT; } 51 52 [[nodiscard]] constexpr const Type promoted() const { return static_cast<Type>((flags_i & 0x3) + 1); } 53 54 bool make(Board &board) const; 55 56 operator std::string() const; 57 friend std::ostream &operator<<(std::ostream &os, Move move); 58 void print() const; 59 60 private: 61 inline void piece_remove(Board &board, Type type, Color color, Square square) const; 62 inline void piece_set(Board &board, Type type, Color color, Square square) const; 63 inline void piece_move(Board &board, Type type, Color color, Square source, Square target) const; 64 65 unsigned source_i : 6; 66 unsigned target_i : 6; 67 unsigned flags_i : 4; 68 }; 69 70 #endif