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Code Issues Releases Wiki Activity

Templetize move generation API

Browse source 
No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2011-01-05 19:00:30 +01:00
parent 1e7aaed8bc
commit 12f4bbc8f2
4 changed files with 29 additions and 31 deletions
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24
src/movegen.cpp
View file

@ -161,8 +161,8 @@ namespace {
/// generate_captures() generates all pseudo-legal captures and queen
/// promotions. Returns a pointer to the end of the move list.
MoveStack* generate_captures(const Position& pos, MoveStack* mlist) {
template<>
MoveStack* generate<CAPTURES>(const Position& pos, MoveStack* mlist) {
assert(pos.is_ok());
assert(!pos.is_check());
@ -181,8 +181,8 @@ MoveStack* generate_captures(const Position& pos, MoveStack* mlist) {
/// generate_noncaptures() generates all pseudo-legal non-captures and
/// underpromotions. Returns a pointer to the end of the move list.
MoveStack* generate_noncaptures(const Position& pos, MoveStack* mlist) {
template<>
MoveStack* generate<NON_CAPTURES>(const Position& pos, MoveStack* mlist) {
assert(pos.is_ok());
assert(!pos.is_check());
@ -203,8 +203,8 @@ MoveStack* generate_noncaptures(const Position& pos, MoveStack* mlist) {
/// generate_non_evasions() generates all pseudo-legal captures and
/// non-captures. Returns a pointer to the end of the move list.
MoveStack* generate_non_evasions(const Position& pos, MoveStack* mlist) {
template<>
MoveStack* generate<NON_EVASIONS>(const Position& pos, MoveStack* mlist) {
assert(pos.is_ok());
assert(!pos.is_check());
@ -229,8 +229,8 @@ MoveStack* generate_non_evasions(const Position& pos, MoveStack* mlist) {
/// generate_non_capture_checks() generates all pseudo-legal non-captures and knight
/// underpromotions that give check. Returns a pointer to the end of the move list.
MoveStack* generate_non_capture_checks(const Position& pos, MoveStack* mlist) {
template<>
MoveStack* generate<NON_CAPTURE_CHECKS>(const Position& pos, MoveStack* mlist) {
assert(pos.is_ok());
assert(!pos.is_check());
@ -270,8 +270,8 @@ MoveStack* generate_non_capture_checks(const Position& pos, MoveStack* mlist) {
/// generate_evasions() generates all pseudo-legal check evasions when
/// the side to move is in check. Returns a pointer to the end of the move list.
MoveStack* generate_evasions(const Position& pos, MoveStack* mlist) {
template<>
MoveStack* generate<EVASIONS>(const Position& pos, MoveStack* mlist) {
assert(pos.is_ok());
assert(pos.is_check());
@ -347,8 +347,8 @@ MoveStack* generate_moves(const Position& pos, MoveStack* mlist, bool pseudoLega
Bitboard pinned = pos.pinned_pieces(pos.side_to_move());
// Generate pseudo-legal moves
last = pos.is_check() ? generate_evasions(pos, mlist)
: generate_non_evasions(pos, mlist);
last = pos.is_check() ? generate<EVASIONS>(pos, mlist)
: generate<NON_EVASIONS>(pos, mlist);
if (pseudoLegal)
return last;

22
src/movegen.h
View file

@ -21,22 +21,20 @@
#if !defined(MOVEGEN_H_INCLUDED)
#define MOVEGEN_H_INCLUDED
////
//// Includes
////
#include "position.h"
enum MoveGeneration {
CAPTURES,
NON_CAPTURES,
NON_CAPTURE_CHECKS,
EVASIONS,
NON_EVASIONS,
ALL_MOVES
};
////
//// Prototypes
////
template<MoveGeneration T>
MoveStack* generate(const Position& pos, MoveStack* mlist);
extern MoveStack* generate_captures(const Position& pos, MoveStack* mlist);
extern MoveStack* generate_noncaptures(const Position& pos, MoveStack* mlist);
extern MoveStack* generate_non_capture_checks(const Position& pos, MoveStack* mlist);
extern MoveStack* generate_evasions(const Position& pos, MoveStack* mlist);
extern MoveStack* generate_non_evasions(const Position& pos, MoveStack* mlist);
extern MoveStack* generate_moves(const Position& pos, MoveStack* mlist, bool pseudoLegal = false);
extern bool move_is_legal(const Position& pos, const Move m, Bitboard pinned);
extern bool move_is_legal(const Position& pos, const Move m);

10
src/movepick.cpp
View file

@ -132,7 +132,7 @@ void MovePicker::go_next_phase() {
return;
case PH_GOOD_CAPTURES:
lastMove = generate_captures(pos, moves);
lastMove = generate<CAPTURES>(pos, moves);
score_captures();
return;
@ -142,7 +142,7 @@ void MovePicker::go_next_phase() {
return;
case PH_NONCAPTURES:
lastMove = generate_noncaptures(pos, moves);
lastMove = generate<NON_CAPTURES>(pos, moves);
score_noncaptures();
sort_moves(moves, lastMove, &lastGoodNonCapture);
return;
@ -156,17 +156,17 @@ void MovePicker::go_next_phase() {
case PH_EVASIONS:
assert(pos.is_check());
lastMove = generate_evasions(pos, moves);
lastMove = generate<EVASIONS>(pos, moves);
score_evasions();
return;
case PH_QCAPTURES:
lastMove = generate_captures(pos, moves);
lastMove = generate<CAPTURES>(pos, moves);
score_captures();
return;
case PH_QCHECKS:
lastMove = generate_non_capture_checks(pos, moves);
lastMove = generate<NON_CAPTURE_CHECKS>(pos, moves);
return;
case PH_STOP:

4
src/position.cpp
View file

@ -1730,8 +1730,8 @@ bool Position::has_mate_threat() {
do_null_move(st1);
// Then generate pseudo-legal moves that could give check
last = generate_non_capture_checks(*this, mlist);
last = generate_captures(*this, last);
last = generate<NON_CAPTURE_CHECKS>(*this, mlist);
last = generate<CAPTURES>(*this, last);
// Loop through the moves, and see if one of them gives mate
Bitboard pinned = pinned_pieces(sideToMove);