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Teach MovePicker::get_next_move() to return move type

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This will be used in future patches.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2008-10-05 23:23:58 +01:00
parent ea7bebb604
commit 310e07f292
2 changed files with 21 additions and 20 deletions
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24
src/movepick.cpp
View file

@ -36,26 +36,9 @@
namespace {
/// Types
enum MovegenPhase {
PH_TT_MOVE, // Transposition table move
PH_MATE_KILLER, // Mate killer from the current ply
PH_GOOD_CAPTURES, // Queen promotions and captures with SEE values >= 0
PH_BAD_CAPTURES, // Queen promotions and captures with SEE valuse <= 0
PH_KILLER_1, // Killer move 1 from the current ply (not used yet).
PH_KILLER_2, // Killer move 2 from the current ply (not used yet).
PH_NONCAPTURES, // Non-captures and underpromotions
PH_EVASIONS, // Check evasions
PH_QCAPTURES, // Captures in quiescence search
PH_QCHECKS, // Checks in quiescence search
PH_STOP
};
/// Variables
MovegenPhase PhaseTable[32];
MovePicker::MovegenPhase PhaseTable[32];
int MainSearchPhaseIndex;
int EvasionsPhaseIndex;
int QsearchWithChecksPhaseIndex;
@ -109,7 +92,7 @@ MovePicker::MovePicker(Position &p, bool pvnode, Move ttm, Move mk,
/// class. It returns a new legal move every time it is called, until there
/// are no more moves left of the types we are interested in.
Move MovePicker::get_next_move() {
Move MovePicker::get_next_move(MovegenPhase* moveType) {
Move move;
while(true) {
@ -123,6 +106,9 @@ Move MovePicker::get_next_move() {
// Next phase:
phaseIndex++;
if (moveType)
*moveType = PhaseTable[phaseIndex];
switch(PhaseTable[phaseIndex]) {
case PH_TT_MOVE:

17
src/movepick.h
View file

@ -44,9 +44,24 @@
class MovePicker {
public:
enum MovegenPhase {
PH_TT_MOVE, // Transposition table move
PH_MATE_KILLER, // Mate killer from the current ply
PH_GOOD_CAPTURES, // Queen promotions and captures with SEE values >= 0
PH_BAD_CAPTURES, // Queen promotions and captures with SEE valuse <= 0
PH_KILLER_1, // Killer move 1 from the current ply (not used yet).
PH_KILLER_2, // Killer move 2 from the current ply (not used yet).
PH_NONCAPTURES, // Non-captures and underpromotions
PH_EVASIONS, // Check evasions
PH_QCAPTURES, // Captures in quiescence search
PH_QCHECKS, // Checks in quiescence search
PH_STOP
};
MovePicker(Position &p, bool pvnode, Move ttm, Move mk, Move k1, Move k2,
Depth dpth);
Move get_next_move();
Move get_next_move(MovegenPhase* moveType = NULL);
Move get_next_move(Lock &lock);
int number_of_moves() const;
int current_move_score() const;