X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmovepick.h;h=6fbd8be1387fc46ce277a03f29a1f2442171ac19;hp=8028d487f3f5803418f22f12b4b5dbf116cc947f;hb=3ab3e55bb5faf57aec864f3bb7268601c11d72be;hpb=b3525fa9ea88e230a38d72351826cbc16c282938 diff --git a/src/movepick.h b/src/movepick.h index 8028d487..6fbd8be1 100644 --- a/src/movepick.h +++ b/src/movepick.h @@ -26,7 +26,6 @@ #include "movegen.h" #include "position.h" -#include "search.h" #include "types.h" @@ -45,9 +44,7 @@ struct Stats { const T* operator[](Piece pc) const { return table[pc]; } T* operator[](Piece pc) { return table[pc]; } void clear() { std::memset(table, 0, sizeof(table)); } - void update(Piece pc, Square to, Move m) { table[pc][to] = m; } - void update(Piece pc, Square to, Value v) { if (abs(int(v)) >= 324) @@ -68,31 +65,32 @@ typedef Stats CounterMoveHistoryStats; struct FromToStats { - Value get(Color c, Move m) const { return table[c][from_sq(m)][to_sq(m)]; } - void clear() { std::memset(table, 0, sizeof(table)); } + Value get(Color c, Move m) const { return table[c][from_sq(m)][to_sq(m)]; } + void clear() { std::memset(table, 0, sizeof(table)); } + void update(Color c, Move m, Value v) { - void update(Color c, Move m, Value v) - { - if (abs(int(v)) >= 324) - return; + if (abs(int(v)) >= 324) + return; - Square f = from_sq(m); - Square t = to_sq(m); + Square from = from_sq(m); + Square to = to_sq(m); - table[c][f][t] -= table[c][f][t] * abs(int(v)) / 324; - table[c][f][t] += int(v) * 32; - } + table[c][from][to] -= table[c][from][to] * abs(int(v)) / 324; + table[c][from][to] += int(v) * 32; + } private: - Value table[COLOR_NB][SQUARE_NB][SQUARE_NB]; + Value table[COLOR_NB][SQUARE_NB][SQUARE_NB]; }; + /// MovePicker class is used to pick one pseudo legal move at a time from the /// current position. The most important method is next_move(), which returns a /// new pseudo legal move each time it is called, until there are no moves left, /// when MOVE_NONE is returned. In order to improve the efficiency of the alpha /// beta algorithm, MovePicker attempts to return the moves which are most likely /// to get a cut-off first. +namespace Search { struct Stack; } class MovePicker { public: @@ -107,8 +105,7 @@ public: private: template void score(); - void generate_next_stage(); - ExtMove* begin() { return moves; } + ExtMove* begin() { return cur; } ExtMove* end() { return endMoves; } const Position& pos; @@ -116,12 +113,11 @@ private: Move countermove; Depth depth; Move ttMove; - ExtMove killers[3]; Square recaptureSquare; Value threshold; int stage; - ExtMove* endBadCaptures = moves + MAX_MOVES - 1; - ExtMove moves[MAX_MOVES], *cur = moves, *endMoves = moves; + ExtMove *cur, *endMoves, *endBadCaptures; + ExtMove moves[MAX_MOVES]; }; #endif // #ifndef MOVEPICK_H_INCLUDED