X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmaterial.h;h=62f4f9a01514031b07bde83c4f27a46cacedead8;hp=4ebd78fd5bb033ddb80063db3bced3e93b82114e;hb=6d117e4a23dd1a3a22d5553b4ac15d9d15f0aafe;hpb=6e8bd8bf2d77eeb4414b6e533559dbda1f0211c9;ds=sidebyside

diff --git a/src/material.h b/src/material.h
index 4ebd78fd..62f4f9a0 100644
--- a/src/material.h
+++ b/src/material.h
@@ -1,18 +1,18 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008 Marco Costalba
+  Copyright (C) 2008-2009 Marco Costalba
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
-  
+
   Stockfish is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
-  
+
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
@@ -49,21 +49,25 @@ class MaterialInfo {
   friend class MaterialInfoTable;
 
 public:
+  MaterialInfo() : key(0) { clear(); }
+
   Value mg_value() const;
   Value eg_value() const;
   ScaleFactor scale_factor(const Position& pos, Color c) const;
+  int space_weight() const;
   bool specialized_eval_exists() const;
   Value evaluate(const Position& pos) const;
 
 private:
   void clear();
-  
+
   Key key;
   int16_t mgValue;
   int16_t egValue;
   uint8_t factor[2];
-  EndgameEvaluationFunction* evaluationFunction;
-  ScalingFunction* scalingFunction[2];
+  EndgameEvaluationFunctionBase* evaluationFunction;
+  EndgameScalingFunctionBase* scalingFunction[2];
+  int spaceWeight;
 };
 
 
@@ -85,7 +89,6 @@ class MaterialInfoTable {
 public:
   MaterialInfoTable(unsigned numOfEntries);
   ~MaterialInfoTable();
-  void clear();
   MaterialInfo* get_material_info(const Position& pos);
 
 private:
@@ -114,7 +117,7 @@ inline Value MaterialInfo::eg_value() const {
 
 
 /// MaterialInfo::clear() resets a MaterialInfo object to an empty state,
-/// with all slots at their default values.
+/// with all slots at their default values but the key.
 
 inline void MaterialInfo::clear() {
 
@@ -122,11 +125,12 @@ inline void MaterialInfo::clear() {
   factor[WHITE] = factor[BLACK] = uint8_t(SCALE_FACTOR_NORMAL);
   evaluationFunction = NULL;
   scalingFunction[WHITE] = scalingFunction[BLACK] = NULL;
+  spaceWeight = 0;
 }
 
 
 /// MaterialInfo::scale_factor takes a position and a color as input, and
-/// returns a scale factor for the given color.  We have to provide the
+/// returns a scale factor for the given color. We have to provide the
 /// position in addition to the color, because the scale factor need not
 /// to be a constant: It can also be a function which should be applied to
 /// the position. For instance, in KBP vs K endgames, a scaling function
@@ -144,6 +148,15 @@ inline ScaleFactor MaterialInfo::scale_factor(const Position& pos, Color c) cons
 }
 
 
+/// MaterialInfo::space_weight() simply returns the weight for the space
+/// evaluation for this material configuration.
+
+inline int MaterialInfo::space_weight() const {
+
+  return spaceWeight;
+}
+
+
 /// MaterialInfo::specialized_eval_exists decides whether there is a
 /// specialized evaluation function for the current material configuration,
 /// or if the normal evaluation function should be used.
@@ -155,7 +168,7 @@ inline bool MaterialInfo::specialized_eval_exists() const {
 
 
 /// MaterialInfo::evaluate applies a specialized evaluation function
-/// to a given position object.  It should only be called when
+/// to a given position object. It should only be called when
 /// specialized_eval_exists() returns 'true'.
 
 inline Value MaterialInfo::evaluate(const Position& pos) const {