X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmaterial.h;h=3ca169ce0b93b6ff5500552f0d9a8c4319ed7157;hp=0c5829689ee122049b49a015a92c36302a5611d3;hb=HEAD;hpb=4626ec2890b140829e9971658ca948005b945fd4

diff --git a/src/material.h b/src/material.h
deleted file mode 100644
index 0c582968..00000000
--- a/src/material.h
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
-  Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  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/>.
-*/
-
-
-#if !defined(MATERIAL_H_INCLUDED)
-#define MATERIAL_H_INCLUDED
-
-////
-//// Includes
-////
-
-#include "endgame.h"
-#include "position.h"
-#include "scale.h"
-
-
-////
-//// Types
-////
-
-/// MaterialInfo is a class which contains various information about a
-/// material configuration. It contains a material balance evaluation,
-/// a function pointer to a special endgame evaluation function (which in
-/// most cases is NULL, meaning that the standard evaluation function will
-/// be used), and "scale factors" for black and white.
-///
-/// The scale factors are used to scale the evaluation score up or down.
-/// For instance, in KRB vs KR endgames, the score is scaled down by a factor
-/// of 4, which will result in scores of absolute value less than one pawn.
-
-class MaterialInfo {
-
-  friend class MaterialInfoTable;
-
-public:
-  MaterialInfo() : key(0) { clear(); }
-
-  Score material_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:
-  inline void clear();
-
-  Key key;
-  int16_t value;
-  uint8_t factor[2];
-  EndgameEvaluationFunctionBase* evaluationFunction;
-  EndgameScalingFunctionBase* scalingFunction[2];
-  int spaceWeight;
-};
-
-/// The MaterialInfoTable class represents a pawn hash table. It is basically
-/// just an array of MaterialInfo objects and a few methods for accessing these
-/// objects. The most important method is get_material_info, which looks up a
-/// position in the table and returns a pointer to a MaterialInfo object.
-class EndgameFunctions;
-
-class MaterialInfoTable {
-
-public:
-  MaterialInfoTable(unsigned numOfEntries);
-  ~MaterialInfoTable();
-  MaterialInfo* get_material_info(const Position& pos);
-
-private:
-  unsigned size;
-  MaterialInfo* entries;
-  EndgameFunctions* funcs;
-};
-
-
-////
-//// Inline functions
-////
-
-/// MaterialInfo::material_value simply returns the material balance
-/// evaluation that is independent from game phase.
-
-inline Score MaterialInfo::material_value() const {
-
-  return Score(value, value);
-}
-
-
-/// MaterialInfo::clear() resets a MaterialInfo object to an empty state,
-/// with all slots at their default values but the key.
-
-inline void MaterialInfo::clear() {
-
-  value = 0;
-  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
-/// 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
-/// which checks for draws with rook pawns and wrong-colored bishops.
-
-inline ScaleFactor MaterialInfo::scale_factor(const Position& pos, Color c) const {
-
-  if (scalingFunction[c] != NULL)
-  {
-      ScaleFactor sf = scalingFunction[c]->apply(pos);
-      if (sf != SCALE_FACTOR_NONE)
-          return sf;
-  }
-  return ScaleFactor(factor[c]);
-}
-
-
-/// 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.
-
-inline bool MaterialInfo::specialized_eval_exists() const {
-
-  return evaluationFunction != NULL;
-}
-
-
-/// MaterialInfo::evaluate applies a specialized evaluation function
-/// to a given position object. It should only be called when
-/// specialized_eval_exists() returns 'true'.
-
-inline Value MaterialInfo::evaluate(const Position& pos) const {
-
-  return evaluationFunction->apply(pos);
-}
-
-#endif // !defined(MATERIAL_H_INCLUDED)