HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-24 02:57:11 +08:00
Code Issues Packages Projects Releases Wiki Activity

Retire direction.h

Browse Source 
Move all to square.h

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2010-12-26 10:54:45 +01:00
parent 94a67c49b0
commit 6080fecf9c
7 changed files with 35 additions and 92 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
src/square.h
View File

@@ -68,10 +68,23 @@ enum SquareDelta {
DELTA_NW = DELTA_N + DELTA_W,
};
enum Direction {
DIR_E = 0, DIR_N = 1, DIR_NE = 2, DIR_NW = 3, DIR_NONE = 4
};
enum SignedDirection {
SIGNED_DIR_E = 0, SIGNED_DIR_W = 1,
SIGNED_DIR_N = 2, SIGNED_DIR_S = 3,
SIGNED_DIR_NE = 4, SIGNED_DIR_SW = 5,
SIGNED_DIR_NW = 6, SIGNED_DIR_SE = 7,
SIGNED_DIR_NONE = 8
};
ENABLE_OPERATORS_ON(Square);
ENABLE_OPERATORS_ON(File);
ENABLE_OPERATORS_ON(Rank);
ENABLE_OPERATORS_ON(SquareDelta);
ENABLE_OPERATORS_ON(SignedDirection);
////
@@ -81,6 +94,9 @@ ENABLE_OPERATORS_ON(SquareDelta);
const int FlipMask = 56;
const int FlopMask = 7;
extern uint8_t DirectionTable[64][64];
extern uint8_t SignedDirectionTable[64][64];
////
//// Inline functions
@@ -181,4 +197,22 @@ inline bool square_is_ok(Square s) {
return file_is_ok(square_file(s)) && rank_is_ok(square_rank(s));
}
inline Direction direction_between_squares(Square s1, Square s2) {
return Direction(DirectionTable[s1][s2]);
}
inline int direction_is_diagonal(Square s1, Square s2) {
return DirectionTable[s1][s2] & 2;
}
inline bool direction_is_straight(Square s1, Square s2) {
return DirectionTable[s1][s2] < 2;
}
////
//// Prototypes
////
extern void init_direction_table();
#endif // !defined(SQUARE_H_INCLUDED)