X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmaterial.h;h=e33fc87bdf8c2ae8f590b64aba27b133c7ac7271;hp=9992c0b71c51ba55dafde449f61c75f6b4b2b929;hb=98352a5e84096c906d5ecc1aeb2fca8745e173c2;hpb=0fcda095df1caa860e8e3f3a714d5545ec9dc122

diff --git a/src/material.h b/src/material.h
index 9992c0b7..e33fc87b 100644
--- a/src/material.h
+++ b/src/material.h
@@ -23,8 +23,16 @@
 #include "endgame.h"
 #include "position.h"
 #include "tt.h"
+#include "types.h"
+
+const int MaterialTableSize = 8192;
+
+/// Game phase
+enum Phase {
+  PHASE_ENDGAME = 0,
+  PHASE_MIDGAME = 128
+};
 
-const int MaterialTableSize = 1024;
 
 /// MaterialInfo is a class which contains various information about a
 /// material configuration. It contains a material balance evaluation,
@@ -52,34 +60,29 @@ private:
   Key key;
   int16_t value;
   uint8_t factor[2];
-  EndgameEvaluationFunctionBase* evaluationFunction;
-  EndgameScalingFunctionBase* scalingFunction[2];
+  EndgameBase<Value>* evaluationFunction;
+  EndgameBase<ScaleFactor>* scalingFunction[2];
   int spaceWeight;
   Phase gamePhase;
 };
 
+
 /// The MaterialInfoTable class represents a pawn hash table. The most important
 /// method is get_material_info, which returns a pointer to a MaterialInfo object.
-class EndgameFunctions;
 
 class MaterialInfoTable : public SimpleHash<MaterialInfo, MaterialTableSize> {
 public:
-  MaterialInfoTable();
   ~MaterialInfoTable();
-  MaterialInfo* get_material_info(const Position& pos);
+  void init();
+  MaterialInfo* get_material_info(const Position& pos) const;
   static Phase game_phase(const Position& pos);
-private:
-  EndgameFunctions* funcs;
-};
-
-
-/// MaterialInfo::material_value simply returns the material balance
-/// evaluation that is independent from game phase.
 
-inline Score MaterialInfo::material_value() const {
+private:
+  template<Color Us>
+  static int imbalance(const int pieceCount[][8]);
 
-  return make_score(value, value);
-}
+  Endgames* funcs;
+};
 
 
 /// MaterialInfo::scale_factor takes a position and a color as input, and
@@ -91,51 +94,31 @@ inline Score MaterialInfo::material_value() const {
 
 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]);
+  if (!scalingFunction[c])
+      return ScaleFactor(factor[c]);
+
+  ScaleFactor sf = (*scalingFunction[c])(pos);
+  return sf == SCALE_FACTOR_NONE ? ScaleFactor(factor[c]) : sf;
 }
 
+inline Value MaterialInfo::evaluate(const Position& pos) const {
+  return (*evaluationFunction)(pos);
+}
 
-/// MaterialInfo::space_weight() simply returns the weight for the space
-/// evaluation for this material configuration.
+inline Score MaterialInfo::material_value() const {
+  return make_score(value, value);
+}
 
 inline int MaterialInfo::space_weight() const {
-
   return spaceWeight;
 }
 
-
-/// MaterialInfo::game_phase() returns the game phase according
-/// to this material configuration.
-
 inline Phase MaterialInfo::game_phase() const {
-
   return gamePhase;
 }
 
-
-/// 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)