/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
+ Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-
-#if !defined(TIMEMAN_H_INCLUDED)
+#ifndef TIMEMAN_H_INCLUDED
#define TIMEMAN_H_INCLUDED
-////
-//// Prototypes
-////
+#include "misc.h"
+#include "search.h"
-class TimeManager {
-public:
+/// The TimeManagement class computes the optimal time to think depending on
+/// the maximum available time, the game move number and other parameters.
- void update(int myTime, int myInc, int movesToGo, int currentPly,
- int* optimumSearchTime, int* maximumSearchTime);
+class TimeManagement {
+public:
+ void init(Search::LimitsType& limits, Color us, int ply, TimePoint now);
+ void pv_instability(double bestMoveChanges) { unstablePvFactor = 1 + bestMoveChanges; }
+ int available() const { return int(optimumTime * unstablePvFactor * 0.76); }
+ int maximum() const { return maximumTime; }
+ int elapsed() const { return int(Search::Limits.npmsec ? Search::RootPos.nodes_searched() : now() - start); }
+
+ int64_t availableNodes; // When in 'nodes as time' mode
+
+private:
+ TimePoint start;
+ int optimumTime;
+ int maximumTime;
+ double unstablePvFactor;
};
-#endif // !defined(TIMEMAN_H_INCLUDED)
+extern TimeManagement Time;
+
+#endif // #ifndef TIMEMAN_H_INCLUDED