X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fmaterial.cpp;h=1567358af488143e5befb36add633be9a5f67903;hb=7678d63cf2323e51c01e60cdff4ac3d685313790;hp=36b6132c6502a7a9765b73d0143dac416af896c3;hpb=c4d67d77c99b99c9ac387ab622773a320f8d5cc3;p=stockfish

diff --git a/src/material.cpp b/src/material.cpp
index 36b6132c..1567358a 100644
--- a/src/material.cpp
+++ b/src/material.cpp
@@ -1,6 +1,6 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2021 The Stockfish developers (see AUTHORS file)
+  Copyright (C) 2004-2022 The Stockfish developers (see AUTHORS file)
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -24,28 +24,32 @@
 
 using namespace std;
 
+namespace Stockfish {
+
 namespace {
   #define S(mg, eg) make_score(mg, eg)
 
   // Polynomial material imbalance parameters
 
+  // One Score parameter for each pair (our piece, another of our pieces)
   constexpr Score QuadraticOurs[][PIECE_TYPE_NB] = {
-    //            OUR PIECES
-    // pair pawn knight bishop rook queen
+    // OUR PIECE 2
+    // bishop pair    pawn         knight       bishop       rook           queen
     {S(1419, 1455)                                                                  }, // Bishop pair
     {S( 101,   28), S( 37,  39)                                                     }, // Pawn
-    {S(  57,   64), S(249, 187), S(-49, -62)                                        }, // Knight      OUR PIECES
+    {S(  57,   64), S(249, 187), S(-49, -62)                                        }, // Knight      OUR PIECE 1
     {S(   0,    0), S(118, 137), S( 10,  27), S(  0,   0)                           }, // Bishop
     {S( -63,  -68), S( -5,   3), S(100,  81), S(132, 118), S(-246, -244)            }, // Rook
     {S(-210, -211), S( 37,  14), S(147, 141), S(161, 105), S(-158, -174), S(-9,-31) }  // Queen
   };
 
+  // One Score parameter for each pair (our piece, their piece)
   constexpr Score QuadraticTheirs[][PIECE_TYPE_NB] = {
-    //           THEIR PIECES
-    // pair pawn knight bishop rook queen
+    // THEIR PIECE
+    // bishop pair   pawn         knight       bishop       rook         queen
     {                                                                               }, // Bishop pair
     {S(  33,  30)                                                                   }, // Pawn
-    {S(  46,  18), S(106,  84)                                                      }, // Knight      OUR PIECES
+    {S(  46,  18), S(106,  84)                                                      }, // Knight      OUR PIECE
     {S(  75,  35), S( 59,  44), S( 60,  15)                                         }, // Bishop
     {S(  26,  35), S(  6,  22), S( 38,  39), S(-12,  -2)                            }, // Rook
     {S(  97,  93), S(100, 163), S(-58, -91), S(112, 192), S(276, 225)               }  // Queen
@@ -70,7 +74,7 @@ namespace {
 
   bool is_KBPsK(const Position& pos, Color us) {
     return   pos.non_pawn_material(us) == BishopValueMg
-          && pos.count<PAWN  >(us) >= 1;
+          && pos.count<PAWN>(us) >= 1;
   }
 
   bool is_KQKRPs(const Position& pos, Color us) {
@@ -221,3 +225,5 @@ Entry* probe(const Position& pos) {
 }
 
 } // namespace Material
+
+} // namespace Stockfish