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defs.h
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defs.h
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/**********************************
* defs.h *
* Colin Frayn *
* March 2001 *
**********************************/
/*
This file includes all the definitions for various board mappings.
*/
#ifndef DEFS_H
#define DEFS_H
/* Global variables defined and used in main.c. But these aren't the nasty kind of
* global variables that you were warned against. These are *nice* global variables. */
BITBOARD Mask[64],InvMask[64],FileMask[8],RankMask[8],DiagMaska1h8[64],DiagMaska8h1[64];
BITBOARD MovesRank[64][256],MovesFile[64][256],Movesa1h8[64][256],Movesa8h1[64][256];
BITBOARD KnightMoves[64],KingMoves[64],RookMask[64],BishopMask[64];
BITBOARD PawnAttacksBlack[64],PawnAttacksWhite[64],PawnMovesBlack[64],PawnMovesWhite[64];
BITBOARD IMR90[64],MR90[64],IMR45[64],MR45[64],IML45[64],ML45[64];
BITBOARD CastleMaskR90[4],CastleMaskR45[4],CastleMaskL45[4],DoubleKnightMove[64];
BITBOARD QueenMask[64],FullBoard,FileUpMask[64],FileDownMask[64];
BITBOARD AboveMask[8],BelowMask[8],LeftMask[8],RightMask[8], FrontMask[64], BackMask[64];
BITBOARD WhiteKingSide, WhiteQueenSide, BlackKingSide, BlackQueenSide;
BITBOARD LLCorner, LRCorner, ULCorner, URCorner, PawnShieldMaskWhite[64], PawnShieldMaskBlack[64];
BITBOARD RankLeftMask[64], RankRightMask[64], OffsideMask[8], SideMask[64], FlankMask[64];
BITBOARD FlankMaskDown[64], FlankMaskUp[64], PairMaskUp[64], PairMaskDown[64], PairMask[64];
BITBOARD WhiteMask,BlackMask,FPMask1,FPMask2,KingSafetyMask[64], CentreMask, EdgeMask;
BITBOARD DirR[64],DirL[64],DirUR[64],DirUL[64],DirDL[64],DirDR[64];
BITBOARD KnightAttackPromotionW[64], KnightAttackPromotionB[64];
int DiagonalMask_a1h8[64],DiagonalMask_a8h1[64], SideAttack[6];
int NPos, SpaceWon[6][64], SpaceDefended[6][64];
int InvRotateL45[64],InvRotateR45[64],Flip[64],Distance[64][64], KingSafetyPP[17][7];
int Gamestage[256], SquareColour[64], KingArea[64][25],RookTrapped[6];
int CentreBoard[64],CornerBoard2[64],CornerBoard3[64],CentreBoard2[64], Backward[7][8];
KeyType RandomTable[64][13],CastleKey[16];
Openpos *Openings;
/* square -> square mappings for a rotation of 90 degrees anti-clockwise */
int RotateL90[64] = {
h8,h7,h6,h5,h4,h3,h2,h1,
g8,g7,g6,g5,g4,g3,g2,g1,
f8,f7,f6,f5,f4,f3,f2,f1,
e8,e7,e6,e5,e4,e3,e2,e1,
d8,d7,d6,d5,d4,d3,d2,d1,
c8,c7,c6,c5,c4,c3,c2,c1,
b8,b7,b6,b5,b4,b3,b2,b1,
a8,a7,a6,a5,a4,a3,a2,a1,
};
/* square -> square mappings for a rotation of 90 degrees clockwise */
int RotateR90[64] = {
a1,a2,a3,a4,a5,a6,a7,a8,
b1,b2,b3,b4,b5,b6,b7,b8,
c1,c2,c3,c4,c5,c6,c7,c8,
d1,d2,d3,d4,d5,d6,d7,d8,
e1,e2,e3,e4,e5,e6,e7,e8,
f1,f2,f3,f4,f5,f6,f7,f8,
g1,g2,g3,g4,g5,g6,g7,g8,
h1,h2,h3,h4,h5,h6,h7,h8
};
/* Formatting the rotation board like this makes it much easier to see
* what is really going on. These are just mappings effectively, mapping
* each square in the source bitboard onto a new square in the rotated bitboard
* such that diagonals are now lined up horizontally.*/
/* This board is used for working out leading diagonals (a1h8 sense). Effectively
* it represents the square-square mappings for a rotation of 45 degrees clockwise */
int RotateR45[64] = {
a8,
a7,b8,
a6,b7,c8,
a5,b6,c7,d8,
a4,b5,c6,d7,e8,
a3,b4,c5,d6,e7,f8,
a2,b3,c4,d5,e6,f7,g8,
a1,b2,c3,d4,e5,f6,g7,h8,
b1,c2,d3,e4,f5,g6,h7,
c1,d2,e3,f4,g5,h6,
d1,e2,f3,g4,h5,
e1,f2,g3,h4,
f1,g2,h3,
g1,h2,
h1
};
/* This board is used for working out trailing diagonals (a8h1 sense). Effectively
* it represents the square-square mappings for a rotation of 45 degrees anti-clockwise */
int RotateL45[64] = {
h8,
g8,h7,
f8,g7,h6,
e8,f7,g6,h5,
d8,e7,f6,g5,h4,
c8,d7,e6,f5,g4,h3,
b8,c7,d6,e5,f4,g3,h2,
a8,b7,c6,d5,e4,f3,g2,h1,
a7,b6,c5,d4,e3,f2,g1,
a6,b5,c4,d3,e2,f1,
a5,b4,c3,d2,e1,
a4,b3,c2,d1,
a3,b2,c1,
a2,b1,
a1
};
/* These simply store the length of the diagonal in the required sense */
int DiagonalLength_a1h8[64] = {
1,2,3,4,5,6,7,8,
2,3,4,5,6,7,8,7,
3,4,5,6,7,8,7,6,
4,5,6,7,8,7,6,5,
5,6,7,8,7,6,5,4,
6,7,8,7,6,5,4,3,
7,8,7,6,5,4,3,2,
8,7,6,5,4,3,2,1
};
int DiagonalLength_a8h1[64] = {
8,7,6,5,4,3,2,1,
7,8,7,6,5,4,3,2,
6,7,8,7,6,5,4,3,
5,6,7,8,7,6,5,4,
4,5,6,7,8,7,6,5,
3,4,5,6,7,8,7,6,
2,3,4,5,6,7,8,7,
1,2,3,4,5,6,7,8
};
/* These store the number of bits rotated bitboards need to be shifted to extract
* the required row. For example, if I wanted the diagonal from a6-c8, which is in the
* a1h8 sense, I take the correct bitboard, namely the R45 one, and shift it right
* by the stated amount (3) and then and it with (2^l)-1 where l is the diagonal
* length. */
int DiagShifts_a1h8[64] = {
0, 1, 3, 6,10,15,21,28,
1, 3, 6,10,15,21,28,36,
3, 6,10,15,21,28,36,43,
6,10,15,21,28,36,43,49,
10,15,21,28,36,43,49,54,
15,21,28,36,43,49,54,58,
21,28,36,43,49,54,58,61,
28,36,43,49,54,58,61,63
};
int DiagShifts_a8h1[64] = {
28,21,15,10, 6, 3, 1, 0,
36,28,21,15,10, 6, 3, 1,
43,36,28,21,15,10, 6, 3,
49,43,36,28,21,15,10, 6,
54,49,43,36,28,21,15,10,
58,54,49,43,36,28,21,15,
61,58,54,49,43,36,28,21,
63,61,58,54,49,43,36,28
};
/* Values of the pieces times 1 & 100 respectively */
int PieceValue[7] = {0,1,5,3,3,9,1000};
int PieceValue10[7] = {0,10,50,30,30,90,0};
int PieceValue100[7] = {0,0,0,0,0,0,0}; /* This one is filled later */
/* Bonus for advancing pawns to high ranks */
int RankBonus[8] = {0,32,16,8,4,2,0,0};
/* Modifier depending on file (/10) */
int FileMod[8] = {10,9,8,7,7,8,9,10};
/* Initial scores per rank for a passed pawn */
int PassedPawnI[8] = {0,64,50,24,16,12,8,0};
/* Score for a PP based on board square */
int PassedPawn[64];
/* Pieces to be promoted for promote flags 1-4 */
int PromotePiece[5] = {0,5,2,3,4};
/* Bonuses for connected passed pawns (per pawn)
* Scaled by the danger presented by the opposition */
int ConnectedPP[8] = {0,20,16,12,10,8,6,0};
int ConnectedPP2[8] = {0,38,24,18,12,10,8,0};
int ConnectedPP3[8] = {0,46,32,24,14,12,10,0};
/* Bonus for a pawn pair (by rank of the backmost pawn) */
int PawnPair[8] = {0,25,15,8,4,2,0,0};
/* Bonus/Penalty for having a rook, depending on the number of pawns around */
int RookPawnPenalty[17] = {21,18,15,12,9,6,3,0,-2,-4,-6,-8,-10,-12,-14,-16,-18};
/* Offside Majority Penalty
* Scaled by the danger presented by the opposition */
int OffsidePenalty[9] = {0,10,22,30,38,53,70,80,90};
int OffsidePenalty2[9] = {0,14,26,34,46,60,75,85,95};
int OffsidePenalty3[9] = {0,18,30,40,54,67,80,90,100};
//int OffsidePenalty3[9] = {0,22,36,46,60,70,80,90,100};
/* Penalty for doubled pawns based on the number of pawns on the board.
* The first two values are, of course, irrelevant! */
int DoubledPawns[17] = {0,0,20,19,18,17,16,15,14,13,12,11,10,10,10,10,10};
/* Convert from 8*8 position to 12*12 position for attack boards */
int ConvertSq[64] = {
26, 27, 28, 29, 30, 31, 32, 33,
38, 39, 40, 41, 42, 43, 44, 45,
50, 51, 52, 53, 54, 55, 56, 57,
62, 63, 64, 65, 66, 67, 68, 69,
74, 75, 76, 77, 78, 79, 80, 81,
86, 87, 88, 89, 90, 91, 92, 93,
98, 99,100,101,102,103,104,105,
110,111,112,113,114,115,116,117
};
/* Corner proximity bonus for kings in the opening and middle game */
int CornerBoard[64] = {
5, 6, -2, -6, -6, -2, 6, 5,
-8,-10,-14,-16,-16,-14,-10, -8,
-10,-15,-18,-20,-20,-18,-15,-10,
-14,-20,-25,-30,-30,-25,-20,-14,
-14,-20,-25,-30,-30,-25,-20,-14,
-10,-15,-18,-20,-20,-18,-15,-10,
-8,-10,-14,-16,-16,-14,-10, -8,
5, 6, -2, -6, -6, -2, 6, 5};
/* Pawn position depending on Gamestage */
int PawnPosition[6][64];
/* Undefended pawn penalty depending on Gamestage and position */
int PawnPositionPenalty[6][64];
/* Initial pawn position table - to be modified by Gamestage and
* rewritten into PawnPosition[6][64] */
int PawnPositionI[64] = {
0, 0, 0, 0, 0, 0, 0, 0, /* 8 */
24, 28, 32, 35, 35, 32, 28, 24, /* 7 */
5, 10, 16, 25, 25, 16, 10, 5, /* 6 */
4, 8, 14, 19, 19, 14, 8, 4, /* 5 */
3, 5, 6, 12, 12, 6, 5, 3, /* 4 */
2, 4, 3, 7, 7, 3, 4, 2, /* 3 */
1, 2, 3, -8, -9, 3, 2, 1, /* 2 */
0, 0, 0, 0, 0, 0, 0, 0}; /* 1 */
/* A B C D E F G H */
/* Rook positional values */
int RookPosition[64] = {
0, 1, 2, 4, 4, 2, 1, 0,
3, 5, 7, 7, 7, 7, 5, 3,
3, 4, 5, 6, 6, 5, 4, 3,
-2, 0, 4, 5, 5, 4, 0, -2,
-4, -2, 3, 4, 4, 3, -2, -4,
-6, -2, 3, 4, 4, 3, -2, -6,
-6, -2, 4, 4, 4, 4, -2, -6,
-4, -2, 2, 4, 4, 2, -2, -4};
/* Knight positional values */
int KnightPosition[64] = {
-20,-10, -7, -5, -5, -7,-10,-20,
-10, -5, 2, 3, 3, 2, -5,-10,
-4, 5, 7, 7, 7, 7, 5, -4,
-5, 6, 8, 10, 10, 8, 6, -5,
-6, 3, 8, 10, 10, 8, 3, -6,
-8, 0, 5, 8, 8, 5, 0, -8,
-10, -8, 0, 1, 1, 0, -8,-10,
-20,-10,-10, -8, -8,-10,-10,-20};
/* Bishop positional values */
int BishopPosition[64] = {
2, 7, 7, 7, 7, 7, 7, 2,
2, 4, 4, 4, 4, 4, 4, 2,
4, 6, 7, 7, 7, 7, 6, 4,
4, 6, 8, 8, 8, 8, 6, 4,
0, 4, 6, 8, 8, 6, 4, 0,
0, 4, 5, 6, 6, 5, 4, 0,
0, 6, 5, 5, 5, 5, 6, 0,
-8, -8, -6, -6, -6, -6, -8, -8};
/* Queen positional values */
int QueenPosition[64] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 2, 3, 4, 4, 3, 2, 0,
0, 2, 4, 5, 5, 3, 2, 0,
0, 2, 4, 8, 8, 4, 2, 0,
-1, 0, 3, 6, 6, 3, 0, -1,
-1, 0, 2, 3, 3, 2, 0, -1,
-2, -1, 0, 0, 0, 0, -1, -2,
-3, -2, -1, 0, 0, -1, -2, -3};
/* Value of knight outposts at various board locations */
int KnightOutpost[64] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 2, 4, 4, 2, 0, 0,
0, 2, 7,14,14, 7, 2, 0,
0, 0, 6, 9, 9, 6, 0, 0,
0, 0, 1, 5, 5, 1, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0};
/* Penalty for staying near edges if you've got a lone, unprotected king
* and the opponent has rooks/queens in the endgame (mate threats) */
int EdgePenalty[64] = {
-30,-20,-20,-20,-20,-20,-20,-30,
-20,-10,-10,-10,-10,-10,-10,-20,
-20,-10, -5, -5, -5, -5,-10,-20,
-20,-10, -5, 0, 0, -5,-10,-20,
-20,-10, -5, 0, 0, -5,-10,-20,
-20,-10, -5, -5, -5, -5,-10,-20,
-20,-10,-10,-10,-10,-10,-10,-20,
-30,-20,-20,-20,-20,-20,-20,-30};
#endif /* DEFS_H */