OMGeeky/hcsalmon1-Chess-Engine-Test
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Update main.c

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Removed unnecessary if statements and made move_list 50 elements
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Coding with Tom
2025-01-20 16:46:38 +00:00
committed by GitHub
parent b47c753569
commit 8850bfa3c4
1 changed files with 59 additions and 115 deletions
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174
C/main.c
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@@ -714,10 +714,7 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
{
const int pawn_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
if (check_bitboard == 0)
{
check_bitboard = 1ULL << pawn_square;
}
check_bitboard |= SQUARE_BBS[pawn_square];
whiteKingCheckCount++;
}
@@ -728,10 +725,8 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
{
const int knight_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
if (check_bitboard == 0)
{
check_bitboard = SQUARE_BBS[knight_square];
}
check_bitboard |= SQUARE_BBS[knight_square];
whiteKingCheckCount++;
}
@@ -746,10 +741,8 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
}
check_bitboard |= INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
whiteKingCheckCount++;
}
else
@@ -776,10 +769,8 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
}
check_bitboard |= INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
whiteKingCheckCount++;
}
else
@@ -807,10 +798,8 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
}
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
whiteKingCheckCount++;
}
else
@@ -837,10 +826,8 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
}
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
whiteKingCheckCount++;
}
else
@@ -1498,10 +1485,7 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
{
const int pawn_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
if (check_bitboard == 0)
{
check_bitboard = SQUARE_BBS[pawn_square];
}
check_bitboard |= SQUARE_BBS[pawn_square];
blackKingCheckCount++;
}
@@ -1510,12 +1494,9 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
temp_bitboard = board->pieceArray[WN] & KNIGHT_ATTACKS[blackKingPosition];
if (temp_bitboard != 0)
{
int knight_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int knight_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
if (check_bitboard == 0)
{
check_bitboard = SQUARE_BBS[knight_square];
}
check_bitboard = SQUARE_BBS[knight_square];
blackKingCheckCount++;
}
@@ -1525,21 +1506,18 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
temp_bitboard = board->pieceArray[WB] & bishopAttacksChecks;
while (temp_bitboard != 0)
{
int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
temp_pin_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square] & BLACK_OCCUPANCIES_LOCAL;
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square];
}
check_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square];
blackKingCheckCount++;
}
else
{
int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
const int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
temp_pin_bitboard &= temp_pin_bitboard - 1;
if (temp_pin_bitboard == 0)
@@ -1556,21 +1534,18 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
temp_bitboard = board->pieceArray[WQ] & bishopAttacksChecks;
while (temp_bitboard != 0)
{
int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
temp_pin_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square] & BLACK_OCCUPANCIES_LOCAL;
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square];
}
check_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square];
blackKingCheckCount++;
}
else
{
int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
const int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
temp_pin_bitboard &= temp_pin_bitboard - 1;
if (temp_pin_bitboard == 0)
@@ -1584,25 +1559,22 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
}
//rook
unsigned long long rook_attacks = GetRookAttacksFast(blackKingPosition, WHITE_OCCUPANCIES_LOCAL);
const unsigned long long rook_attacks = GetRookAttacksFast(blackKingPosition, WHITE_OCCUPANCIES_LOCAL);
temp_bitboard = board->pieceArray[WR] & rook_attacks;
while (temp_bitboard != 0)
{
int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
temp_pin_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square] & BLACK_OCCUPANCIES_LOCAL;
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square];
}
check_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square];
blackKingCheckCount++;
}
else
{
int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
const int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
temp_pin_bitboard &= temp_pin_bitboard - 1;
if (temp_pin_bitboard == 0)
@@ -1619,21 +1591,18 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
temp_bitboard = board->pieceArray[WQ] & rook_attacks;
while (temp_bitboard != 0)
{
int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
temp_pin_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square] & BLACK_OCCUPANCIES_LOCAL;
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square];
}
check_bitboard |= INBETWEEN_BITBOARDS[blackKingPosition][piece_square];
blackKingCheckCount++;
}
else
{
int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
const int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
temp_pin_bitboard &= temp_pin_bitboard - 1;
if (temp_pin_bitboard == 0)
@@ -1652,10 +1621,6 @@ unsigned long long PerftInlineStruct(Board *board, const int depth, const int pl
{
#pragma region Black king
const unsigned long long occupancyWithoutBlackKing = COMBINED_OCCUPANCIES_LOCAL & (~board->pieceArray[BK]);
if (blackKingPosition == -1)
{
return 0;
}
temp_attack = KING_ATTACKS[blackKingPosition] & WHITE_OCCUPANCIES_LOCAL;
while (temp_attack != 0)
@@ -2856,7 +2821,7 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
// return 1;
//}
int move_list[250][4];
int move_list[50][4];
int move_count = 0;
//Move generating variables
@@ -2896,11 +2861,8 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
{
const int pawn_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
if (check_bitboard == 0)
{
check_bitboard = 1ULL << pawn_square;
}
check_bitboard = 1ULL << pawn_square;
whiteKingCheckCount++;
}
@@ -2910,10 +2872,8 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
{
const int knight_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
if (check_bitboard == 0)
{
check_bitboard = SQUARE_BBS[knight_square];
}
check_bitboard = SQUARE_BBS[knight_square];
whiteKingCheckCount++;
}
@@ -2928,10 +2888,8 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
}
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
whiteKingCheckCount++;
}
else
@@ -2958,10 +2916,8 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
}
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
whiteKingCheckCount++;
}
else
@@ -2989,10 +2945,8 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
}
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
whiteKingCheckCount++;
}
else
@@ -3019,10 +2973,8 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
if (temp_pin_bitboard == 0)
{
if (check_bitboard == 0)
{
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
}
check_bitboard = INBETWEEN_BITBOARDS[whiteKingPosition][piece_square];
whiteKingCheckCount++;
}
else
@@ -3680,10 +3632,7 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
{
const int pawn_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
if (check_bitboard == 0)
{
check_bitboard = SQUARE_BBS[pawn_square];
}
check_bitboard = SQUARE_BBS[pawn_square];
blackKingCheckCount++;
}
@@ -3692,12 +3641,9 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
temp_bitboard = bitboard_array_global[WN] & KNIGHT_ATTACKS[blackKingPosition];
if (temp_bitboard != 0)
{
int knight_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int knight_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
if (check_bitboard == 0)
{
check_bitboard = SQUARE_BBS[knight_square];
}
check_bitboard = SQUARE_BBS[knight_square];
blackKingCheckCount++;
}
@@ -3707,7 +3653,7 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
temp_bitboard = bitboard_array_global[WB] & bishopAttacksChecks;
while (temp_bitboard != 0)
{
int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
temp_pin_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square] & BLACK_OCCUPANCIES_LOCAL;
@@ -3721,7 +3667,7 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
}
else
{
int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
const int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
temp_pin_bitboard &= temp_pin_bitboard - 1;
if (temp_pin_bitboard == 0)
@@ -3738,7 +3684,7 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
temp_bitboard = bitboard_array_global[WQ] & bishopAttacksChecks;
while (temp_bitboard != 0)
{
int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
temp_pin_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square] & BLACK_OCCUPANCIES_LOCAL;
@@ -3752,7 +3698,7 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
}
else
{
int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
const int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
temp_pin_bitboard &= temp_pin_bitboard - 1;
if (temp_pin_bitboard == 0)
@@ -3766,11 +3712,11 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
}
//rook
unsigned long long rook_attacks = GetRookAttacksFast(blackKingPosition, WHITE_OCCUPANCIES_LOCAL);
const unsigned long long rook_attacks = GetRookAttacksFast(blackKingPosition, WHITE_OCCUPANCIES_LOCAL);
temp_bitboard = bitboard_array_global[WR] & rook_attacks;
while (temp_bitboard != 0)
{
int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
temp_pin_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square] & BLACK_OCCUPANCIES_LOCAL;
@@ -3784,7 +3730,7 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
}
else
{
int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
const int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
temp_pin_bitboard &= temp_pin_bitboard - 1;
if (temp_pin_bitboard == 0)
@@ -3801,7 +3747,7 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
temp_bitboard = bitboard_array_global[WQ] & rook_attacks;
while (temp_bitboard != 0)
{
int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
const int piece_square = (DEBRUIJN64[MAGIC * (temp_bitboard ^ (temp_bitboard - 1)) >> 58]);
temp_pin_bitboard = INBETWEEN_BITBOARDS[blackKingPosition][piece_square] & BLACK_OCCUPANCIES_LOCAL;
@@ -3815,7 +3761,7 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
}
else
{
int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
const int pinned_square = (DEBRUIJN64[MAGIC * (temp_pin_bitboard ^ (temp_pin_bitboard - 1)) >> 58]);
temp_pin_bitboard &= temp_pin_bitboard - 1;
if (temp_pin_bitboard == 0)
@@ -3834,10 +3780,6 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
{
#pragma region Black king
const unsigned long long occupancyWithoutBlackKing = COMBINED_OCCUPANCIES_LOCAL & (~bitboard_array_global[BK]);
if (blackKingPosition == -1)
{
return 0;
}
temp_attack = KING_ATTACKS[blackKingPosition] & WHITE_OCCUPANCIES_LOCAL;
while (temp_attack != 0)
@@ -4464,11 +4406,13 @@ unsigned long long PerftInlineGlobalOcc(const int depth, const int ply)
unsigned long long nodes = 0, priorNodes;
int copyEp = ep_global;
int copy_castle[4];
copy_castle[0] = castle_rights_global[0];
copy_castle[1] = castle_rights_global[1];
copy_castle[2] = castle_rights_global[2];
copy_castle[3] = castle_rights_global[3];
const int copy_castle[4] =
{
castle_rights_global[0],
castle_rights_global[1],
castle_rights_global[2],
castle_rights_global[3],
};
for (size_t move_index = 0; move_index < move_count; ++move_index)
{