DroidFish: Implemented DTZ/WDL tablebase hints in the GUI when only syzygy tablebases are available.

2025-12-12 09:02:41 +01:00 · 2014-10-12 00:21:10 +00:00
parent 0545004d3a
commit aa95d57e7b
33 changed files with 5312 additions and 97 deletions
--- a/DroidFish/jni/rtb/material.hpp
+++ b/DroidFish/jni/rtb/material.hpp
@@ -0,0 +1,97 @@
+/*
+    Texel - A UCI chess engine.
+    Copyright (C) 2013-2014  Peter Österlund, peterosterlund2@gmail.com
+
+    This program 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.
+
+    This program 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/>.
+*/
+
+/*
+ * material.hpp
+ *
+ *  Created on: May 1, 2013
+ *      Author: petero
+ */
+
+#ifndef MATERIAL_HPP_
+#define MATERIAL_HPP_
+
+#include "piece.hpp"
+
+/**
+ * An incrementally updated material identifier.
+ * For each legal piece configuration, a unique identifier is computed.
+ */
+class MatId {
+public:
+    static const int WP = 1;
+    static const int WR = 9;
+    static const int WN = 91;
+    static const int WB = 767;
+    static const int WQ = 5903;
+
+    static const int BP = 1 << 16;
+    static const int BR = 9 << 16;
+    static const int BN = 91 << 16;
+    static const int BB = 767 << 16;
+    static const int BQ = 5903 << 16;
+
+    MatId() : hash(0) {}
+
+    /** Add a piece to the material configuration. */
+    void addPiece(int pType);
+
+    /** Remove a piece from the material configuration. */
+    void removePiece(int pType);
+
+    /** Add cnt pieces of tyep ptype to the material configuration. */
+    void addPieceCnt(int pType, int cnt);
+
+    /** Get the material configuration identifier. */
+    int operator()() const;
+
+    /** Get ID for black/white mirror position. */
+    static int mirror(int id);
+
+private:
+    int hash;
+    static const int materialId[Piece::nPieceTypes];
+};
+
+inline void
+MatId::addPiece(int pType) {
+    hash += materialId[pType];
+}
+
+inline void
+MatId::removePiece(int pType) {
+    hash -= materialId[pType];
+}
+
+inline void
+MatId::addPieceCnt(int pType, int cnt) {
+    hash += materialId[pType] * cnt;
+}
+
+inline int
+MatId::operator()() const {
+    return hash;
+}
+
+inline int
+MatId::mirror(int h) {
+    unsigned int ret = h;
+    return (ret >> 16) | ((ret & 0xffff) << 16);
+}
+
+#endif /* MATERIAL_HPP_ */