};
enum SquareDelta {
- DELTA_SSW = -021, DELTA_SS = -020, DELTA_SSE = -017, DELTA_SWW = -012,
- DELTA_SW = -011, DELTA_S = -010, DELTA_SE = -07, DELTA_SEE = -06,
- DELTA_W = -01, DELTA_ZERO = 0, DELTA_E = 01, DELTA_NWW = 06, DELTA_NW = 07,
- DELTA_N = 010, DELTA_NE = 011, DELTA_NEE = 012, DELTA_NNW = 017,
- DELTA_NN = 020, DELTA_NNE = 021
+
+ 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
};
-ENABLE_OPERATORS_ON(Square);
-ENABLE_OPERATORS_ON(File);
-ENABLE_OPERATORS_ON(Rank);
-ENABLE_OPERATORS_ON(SquareDelta);
+ENABLE_OPERATORS_ON(Square)
+ENABLE_OPERATORS_ON(File)
+ENABLE_OPERATORS_ON(Rank)
+ENABLE_OPERATORS_ON(SquareDelta)
////
//// Constants
////
-const int FlipMask = 070;
-const int FlopMask = 07;
-
+const int FlipMask = 56;
+const int FlopMask = 7;
////
//// Inline functions
}
inline bool square_is_ok(Square s) {
- return file_is_ok(square_file(s)) && rank_is_ok(square_rank(s));
+ return s >= SQ_A1 && s <= SQ_H8;
}
#endif // !defined(SQUARE_H_INCLUDED)