#include <cstdlib> // for abs()
#include <string>
-#include "color.h"
#include "misc.h"
+#include "piece.h"
enum Square {
SQ_A1, SQ_B1, SQ_C1, SQ_D1, SQ_E1, SQ_F1, SQ_G1, SQ_H1,
SQ_A6, SQ_B6, SQ_C6, SQ_D6, SQ_E6, SQ_F6, SQ_G6, SQ_H6,
SQ_A7, SQ_B7, SQ_C7, SQ_D7, SQ_E7, SQ_F7, SQ_G7, SQ_H7,
SQ_A8, SQ_B8, SQ_C8, SQ_D8, SQ_E8, SQ_F8, SQ_G8, SQ_H8,
- SQ_NONE
+ SQ_NONE,
+
+ DELTA_N = 8,
+ DELTA_E = 1,
+ DELTA_S = -8,
+ DELTA_W = -1,
+
+ DELTA_NN = DELTA_N + DELTA_N,
+ DELTA_NE = DELTA_N + DELTA_E,
+ DELTA_SE = DELTA_S + DELTA_E,
+ DELTA_SS = DELTA_S + DELTA_S,
+ DELTA_SW = DELTA_S + DELTA_W,
+ DELTA_NW = DELTA_N + DELTA_W
};
enum File {
RANK_1, RANK_2, RANK_3, RANK_4, RANK_5, RANK_6, RANK_7, RANK_8
};
-enum SquareDelta {
-
- DELTA_N = 8, DELTA_E = 1, DELTA_S = -8, DELTA_W = -1, DELTA_NONE = 0,
-
- DELTA_NN = DELTA_N + DELTA_N,
- DELTA_NE = DELTA_N + DELTA_E,
- DELTA_SE = DELTA_S + DELTA_E,
- DELTA_SS = DELTA_S + DELTA_S,
- DELTA_SW = DELTA_S + DELTA_W,
- DELTA_NW = DELTA_N + DELTA_W
+enum SquareColor {
+ DARK, LIGHT
};
ENABLE_OPERATORS_ON(Square)
ENABLE_OPERATORS_ON(File)
ENABLE_OPERATORS_ON(Rank)
-ENABLE_OPERATORS_ON(SquareDelta)
-
-const int FlipMask = 56;
-const int FlopMask = 7;
-
-inline Square operator+ (Square x, SquareDelta i) { return x + Square(i); }
-inline void operator+= (Square& x, SquareDelta i) { x = x + Square(i); }
-inline Square operator- (Square x, SquareDelta i) { return x - Square(i); }
-inline void operator-= (Square& x, SquareDelta i) { x = x - Square(i); }
inline Square make_square(File f, Rank r) {
- return Square(int(f) | (int(r) << 3));
+ return Square((int(r) << 3) | int(f));
}
inline File square_file(Square s) {
}
inline Square flip_square(Square s) {
- return Square(int(s) ^ FlipMask);
+ return Square(int(s) ^ 56);
}
inline Square flop_square(Square s) {
- return Square(int(s) ^ FlopMask);
+ return Square(int(s) ^ 7);
}
inline Square relative_square(Color c, Square s) {
- return Square(int(s) ^ (int(c) * FlipMask));
+ return Square(int(s) ^ (int(c) * 56));
}
inline Rank relative_rank(Color c, Rank r) {
}
inline SquareColor square_color(Square s) {
- return SquareColor((int(square_file(s)) + int(square_rank(s))) & 1);
+ return SquareColor(int(square_rank(s) + s) & 1);
}
inline bool opposite_color_squares(Square s1, Square s2) {
return ((s >> 3) ^ s) & 1;
}
-inline int file_distance(File f1, File f2) {
- return abs(int(f1) - int(f2));
-}
-
inline int file_distance(Square s1, Square s2) {
- return file_distance(square_file(s1), square_file(s2));
-}
-
-inline int rank_distance(Rank r1, Rank r2) {
- return abs(int(r1) - int(r2));
+ return abs(square_file(s1) - square_file(s2));
}
inline int rank_distance(Square s1, Square s2) {
- return rank_distance(square_rank(s1), square_rank(s2));
+ return abs(square_rank(s1) - square_rank(s2));
}
inline int square_distance(Square s1, Square s2) {
}
inline const std::string square_to_string(Square s) {
- return std::string(1, file_to_char(square_file(s)))
- + std::string(1, rank_to_char(square_rank(s)));
+ char ch[] = { file_to_char(square_file(s)), rank_to_char(square_rank(s)), 0 };
+ return std::string(ch);
}
inline bool file_is_ok(File f) {