X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=6a27108d9f4b6c3f2da3bfcc239760081142428d;hp=1c27b29d8075728fe77dc56a2f1c805e728836f8;hb=c7332d5610faf6086ce0b0fe795f5ffc92cc39b0;hpb=25b492ab586bcb3795a4bbb7521a8e5ee20d6708 diff --git a/src/evaluate.cpp b/src/evaluate.cpp index 1c27b29d..6a27108d 100644 --- a/src/evaluate.cpp +++ b/src/evaluate.cpp @@ -19,6 +19,7 @@ #include #include +#include // For std::memset #include #include @@ -26,7 +27,6 @@ #include "evaluate.h" #include "material.h" #include "pawns.h" -#include "thread.h" namespace { @@ -198,7 +198,7 @@ namespace { // KingDanger[attackUnits] contains the actual king danger weighted // scores, indexed by a calculated integer number. - Score KingDanger[128]; + Score KingDanger[512]; // apply_weight() weighs score 's' by weight 'w' trying to prevent overflow Score apply_weight(Score s, const Weight& w) { @@ -476,7 +476,7 @@ namespace { // Finally, extract the king danger score from the KingDanger[] // array and subtract the score from evaluation. - score -= KingDanger[std::max(std::min(attackUnits / 4, 99), 0)]; + score -= KingDanger[std::max(std::min(attackUnits, 399), 0)]; } if (Trace) @@ -677,7 +677,6 @@ namespace { EvalInfo ei; Score score, mobility[2] = { SCORE_ZERO, SCORE_ZERO }; - Thread* thisThread = pos.this_thread(); // Initialize score by reading the incrementally updated scores included // in the position object (material + piece square tables). @@ -685,7 +684,7 @@ namespace { score = pos.psq_score(); // Probe the material hash table - ei.mi = Material::probe(pos, thisThread->materialTable, thisThread->endgames); + ei.mi = Material::probe(pos); score += ei.mi->imbalance(); // If we have a specialized evaluation function for the current material @@ -694,7 +693,7 @@ namespace { return ei.mi->evaluate(pos); // Probe the pawn hash table - ei.pi = Pawns::probe(pos, thisThread->pawnsTable); + ei.pi = Pawns::probe(pos); score += apply_weight(ei.pi->pawns_score(), Weights[PawnStructure]); // Initialize attack and king safety bitboards @@ -892,13 +891,14 @@ namespace Eval { void init() { - const double MaxSlope = 30; + const double MaxSlope = 7.5; const double Peak = 1280; + double t = 0.0; - for (int t = 0, i = 1; i < 100; ++i) + for (int i = 1; i < 400; ++i) { - t = int(std::min(Peak, std::min(0.4 * i * i, t + MaxSlope))); - KingDanger[i] = apply_weight(make_score(t, 0), Weights[KingSafety]); + t = std::min(Peak, std::min(0.025 * i * i, t + MaxSlope)); + KingDanger[i] = apply_weight(make_score(int(t), 0), Weights[KingSafety]); } }