X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fdirection.h;fp=src%2Fdirection.h;h=0000000000000000000000000000000000000000;hp=0500840a4277ac02240755ebf899b4f335e4038c;hb=6080fecf9cba9ac063f8f07bd25004c14016bd33;hpb=94a67c49b0238200bbd4b167d067f067ff4aad30 diff --git a/src/direction.h b/src/direction.h deleted file mode 100644 index 0500840a..00000000 --- a/src/direction.h +++ /dev/null @@ -1,86 +0,0 @@ -/* - Stockfish, a UCI chess playing engine derived from Glaurung 2.1 - Copyright (C) 2004-2008 Tord Romstad (Glaurung author) - Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad - - Stockfish is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - Stockfish is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . -*/ - - -#if !defined(DIRECTION_H_INCLUDED) -#define DIRECTION_H_INCLUDED - -//// -//// Includes -//// - -#include "square.h" -#include "types.h" - - -//// -//// Types -//// - -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(SignedDirection); - - -//// -//// Variables -//// - -extern uint8_t DirectionTable[64][64]; -extern uint8_t SignedDirectionTable[64][64]; - - -//// -//// Inline functions -//// - -inline Direction direction_between_squares(Square s1, Square s2) { - return Direction(DirectionTable[s1][s2]); -} - -inline SignedDirection signed_direction_between_squares(Square s1, Square s2) { - return SignedDirection(SignedDirectionTable[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(DIRECTION_H_INCLUDED)