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

DroidFish/jni/rtb/move.hpp

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+/*
+    Texel - A UCI chess engine.
+    Copyright (C) 2012-2014  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/>.
+*/
+
+/*
+ * move.hpp
+ *
+ *  Created on: Feb 25, 2012
+ *      Author: petero
+ */
+
+#ifndef MOVE_HPP_
+#define MOVE_HPP_
+
+#include "util.hpp"
+
+/** Represents a chess move. */
+class Move {
+public:
+    /** Create empty move object. */
+    Move() : from_(0), to_(0), promoteTo_(0) { }
+
+    /** Create a move object. */
+    Move(int from, int to, int promoteTo);
+
+    /** Copy constructor. */
+    Move(const Move& m);
+
+    int from() const;
+    int to() const;
+    int promoteTo() const;
+
+    /** Not declared "nothrow". Avoids nullptr check in generated assembly code when using placement new. */
+    void* operator new (std::size_t size, void* ptr) { return ptr; }
+
+private:
+    /** From square, 0-63. */
+    int from_;
+
+    /** To square, 0-63. */
+    int to_;
+
+    /** Promotion piece. */
+    int promoteTo_;
+};
+
+inline
+Move::Move(int from, int to, int promoteTo) {
+    from_ = from;
+    to_ = to;
+    promoteTo_ = promoteTo;
+}
+
+inline
+Move::Move(const Move& m) {
+    from_ = m.from_;
+    to_ = m.to_;
+    promoteTo_ = m.promoteTo_;
+}
+
+inline int
+Move::from() const {
+    return from_;
+}
+
+inline int
+Move::to() const {
+    return to_;
+}
+
+inline int
+Move::promoteTo() const {
+    return promoteTo_;
+}
+
+#endif /* MOVE_HPP_ */