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And other assorted trivia.

No functional change.
This commit is contained in:
Marco Costalba
2015-10-24 07:27:24 +02:00
parent 55758344d3
commit 307a5a4f63
8 changed files with 114 additions and 112 deletions
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32
src/movepick.h
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@@ -36,10 +36,10 @@
/// Countermoves store the move that refute a previous one. Entries are stored
/// using only the moving piece and destination square, hence two moves with
/// different origin but same destination and piece will be considered identical.
template<typename T>
template<typename T, bool CM = false>
struct Stats {
static const Value Max = Value(1<<28);
static const Value Max = Value(1 << 28);
const T* operator[](Piece pc) const { return table[pc]; }
T* operator[](Piece pc) { return table[pc]; }
@@ -51,29 +51,23 @@ struct Stats {
table[pc][to] = m;
}
void updateH(Piece pc, Square to, Value v) {
void update(Piece pc, Square to, Value v) {
if (abs(int(v)) >= 324)
if (abs(int(v)) >= 324)
return;
table[pc][to] -= table[pc][to] * abs(int(v)) / 324;
table[pc][to] += int(v) * 32;
}
void updateCMH(Piece pc, Square to, Value v) {
if (abs(int(v)) >= 324)
return;
table[pc][to] -= table[pc][to] * abs(int(v)) / 512;
table[pc][to] += int(v) * 64;
table[pc][to] -= table[pc][to] * abs(int(v)) / (CM ? 512 : 324);
table[pc][to] += int(v) * (CM ? 64 : 32);
}
private:
T table[PIECE_NB][SQUARE_NB];
};
typedef Stats<Value> HistoryStats;
typedef Stats<Move> MovesStats;
typedef Stats<HistoryStats> CounterMovesHistoryStats;
typedef Stats<Value, false> HistoryStats;
typedef Stats<Value, true> CounterMovesStats;
typedef Stats<CounterMovesStats> CounterMovesHistoryStats;
/// MovePicker class is used to pick one pseudo legal move at a time from the
@@ -88,9 +82,9 @@ public:
MovePicker(const MovePicker&) = delete;
MovePicker& operator=(const MovePicker&) = delete;
MovePicker(const Position&, Move, Depth, const HistoryStats&, const CounterMovesHistoryStats&, Square);
MovePicker(const Position&, Move, const HistoryStats&, const CounterMovesHistoryStats&, Value);
MovePicker(const Position&, Move, Depth, const HistoryStats&, const CounterMovesHistoryStats&, Move, Search::Stack*);
MovePicker(const Position&, Move, Depth, const HistoryStats&, Square);
MovePicker(const Position&, Move, const HistoryStats&, Value);
MovePicker(const Position&, Move, Depth, const HistoryStats&, const CounterMovesStats&, Move, Search::Stack*);
Move next_move();
@@ -102,7 +96,7 @@ private:
const Position& pos;
const HistoryStats& history;
const CounterMovesHistoryStats& counterMovesHistory;
const CounterMovesStats* counterMovesHistory;
Search::Stack* ss;
Move countermove;
Depth depth;