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use eval_simple() as base for eval()

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Bruno Raoult
2023-07-12 21:32:26 +02:00
parent d852e0bc1d
commit e2a3563fce
2 changed files with 12 additions and 12 deletions
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13
src/eval.c
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@@ -18,6 +18,7 @@
#include "position.h"
#include "eval.h"
#include "eval-simple.h"
inline eval_t eval_material(pos_t *pos, bool color)
{
@@ -51,18 +52,18 @@ inline eval_t eval_square_control(pos_t *pos, bool color)
eval_t eval(pos_t *pos)
{
eval_t material[2] = {0}, control[2] = {0};
eval_t simple = 0, control[2] = {0};
if (pos->eval != EVAL_INVALID)
return pos->eval;
/* 1) pieces value */
material[WHITE] = eval_material(pos, WHITE);
material[BLACK] = eval_material(pos, BLACK);
//material[WHITE] = eval_material(pos, WHITE);
//material[BLACK] = eval_material(pos, BLACK);
simple = eval_simple(pos);
# ifdef DEBUG_EVAL
log_f(2, "material: W:%d B:%d diff=%d\n",
material[WHITE], material[BLACK], material[WHITE] - material[BLACK]);
log_f(2, "eval_simple=%d\n", simple);
# endif
/* 2) square control: 10 square controls diff = 1 pawn */
@@ -83,7 +84,7 @@ eval_t eval(pos_t *pos)
(pos->mobility[WHITE] - pos->mobility[BLACK]) * 10);
# endif
eval_t res = material[WHITE] - material[BLACK] +
eval_t res = simple +
(control[WHITE] - control[BLACK]) * 10 +
(pos->mobility[WHITE] - pos->mobility[BLACK]) * 10;
# ifdef DEBUG_EVAL

11
src/eval.h
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@@ -19,13 +19,12 @@
#include "chessdefs.h"
#include "piece.h"
#define EVAL_MAX \
KING_VALUE + \
QUEEN_VALUE * 9 + \
ROOK_VALUE * 2 + \
BISHOP_VALUE * 2 + \
KNIGHT_VALUE * 2
/* max pieces eval is KING_VALUE + 9*QUEEN_VALUE + 2*ROOK_VALUE + 2*BISHOP_VALUE
* + 2*KNIGHT_VALUE which around 30000.
* We are on secure sire with -50000/+50000
*/
#define EVAL_MAX (50000)
#define EVAL_MIN (-EVAL_MAX)
#define EVAL_INVALID INT_MIN