olemorud/chess-engine
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Change evaluation score to a centi-pawn based integer type

Browse Source
This commit is contained in:
Ole Morud
2026-01-08 18:44:07 +01:00
parent 33a0878f6a
commit e1d1684c23
6 changed files with 218 additions and 170 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
engine-move-generation.h
View File

@@ -1,5 +1,7 @@
#pragma once
#define MOVE_MAX 128
#define MOVE_CASTLE_KINGSIDE_WHITE (struct move) \
{.from = SQ_E1, .to = SQ_G1}
@@ -13,19 +15,10 @@
{.from = SQ_E8, .to = SQ_C8}
static inline
struct move move_make(struct pos const* restrict pos,
Piece8 piece,
Index8 from,
Index8 to,
uint8_t add_attr)
struct move move_make(Index8 from, Index8 to)
{
(void)piece;
(void)pos;
(void)add_attr;
return (struct move){.from = from, .to = to, .attr = add_attr};
return (struct move){.from = from, .to = to};
}
#define MOVE_MAX 128
enum move_gen_type {
MG_ALL,
@@ -64,7 +57,7 @@ static void all_pseudolegal_from_piece(struct pos const* restrict pos,
while (move_mask) {
Sq8 const to = bitboard_pop_lsb(&move_mask);
assuming(*out_count < MOVE_MAX); \
out[(*out_count)++] = move_make(pos, piece, from, to, 0);
out[(*out_count)++] = move_make(from, to);
}
}
}
@@ -88,7 +81,7 @@ static void all_pseudolegal_pawn_moves_##side(struct pos const* restrict pos,\
while (sp) {\
Sq8 const to = bitboard_pop_lsb(&sp);\
Sq8 const from = SQ_SHIFT_##inverse_direction(to, 1);\
out[(*out_count)++] = move_make(pos, PIECE_PAWN, from, to, 0);\
out[(*out_count)++] = move_make(from, to);\
}\
\
Bb64 dp = pawn_double_push_##side(piece_mask & pawn_rank, ~all_occ)\
@@ -97,7 +90,7 @@ static void all_pseudolegal_pawn_moves_##side(struct pos const* restrict pos,\
while (dp) {\
Sq8 const to = bitboard_pop_lsb(&dp);\
Sq8 const from = SQ_SHIFT_##inverse_direction(to, 2);\
out[(*out_count)++] = move_make(pos, PIECE_PAWN, from, to, 0);\
out[(*out_count)++] = move_make(from, to);\
}\
}
DEFINE_ALL_PSEUDOLEGAL_PAWN_MOVES(white, black, SIDE_WHITE, SOUTH, RANK_MASK_2)
@@ -125,7 +118,7 @@ static void all_pseudolegal_pawn_attacks_##side(struct pos const* restrict pos,\
Sq8 const to = bitboard_pop_lsb(&ratk);\
Sq8 const from = SQ_SHIFT_WEST(SQ_SHIFT_##inverse_direction(to, 1), 1);\
assuming(*out_count < MOVE_MAX); \
out[(*out_count)++] = move_make(pos, PIECE_PAWN, from, to, 0);\
out[(*out_count)++] = move_make(from, to);\
}\
\
Bb64 latk = pawn_attacks_left_##side(piece_mask)\
@@ -136,7 +129,7 @@ static void all_pseudolegal_pawn_attacks_##side(struct pos const* restrict pos,\
Sq8 const to = bitboard_pop_lsb(&latk);\
Sq8 const from = SQ_SHIFT_EAST(SQ_SHIFT_##inverse_direction(to, 1), 1);\
assuming(*out_count < MOVE_MAX); \
out[(*out_count)++] = move_make(pos, PIECE_PAWN, from, to, 0);\
out[(*out_count)++] = move_make(from, to);\
}\
}
DEFINE_ALL_PSEUDOLEGAL_PAWN_ATTACKS(white, black, SIDE_WHITE, SOUTH)