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rename pos_all_legal() to pos_legal_dup(), new pos_legal()

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Bruno Raoult
2024-04-17 09:13:21 +02:00
parent 8b3202fac0
commit 2505217c70
5 changed files with 118 additions and 72 deletions
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58
src/move-gen.c
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@@ -138,24 +138,52 @@ move_t pos_next_legal(const pos_t *pos, movelist_t *movelist, int *start)
}
/**
* pos_all_legal() - get the list of legal moves from pseudo-legal.
* pos_legal_dup() - get legal moves from pseudo-legal ones in new list.
* @pos: position
* @movelist: &pseudo-legal movelist_t
* @dest: &destination movelist_t
* @pseudo: &movelist_t pseudo-legal moves list
* @legal: &movelist_t legal moves
*
* The pseudo-legal moves must be already calculated before calling this function.
* No check is done on @dest limits.
* No check is done on @legal limits.
* This function is similar to pos_legal(), but creates a new list for legal moves.
* It should only be used for debug purpose, when we want to keep a copy of
* pseudo-legal moves.
*
* @Return: @dest
* @return: @legal
*/
movelist_t *pos_all_legal(const pos_t *pos, movelist_t *movelist, movelist_t *dest)
movelist_t *pos_legal_dup(const pos_t *pos, movelist_t *pseudo, movelist_t *legal)
{
int tmp = dest->nmoves = 0;
int tmp = legal->nmoves = 0;
move_t move;
while ((move = pos_next_legal(pos, movelist, &tmp)) != MOVE_NONE)
dest->move[dest->nmoves++] = move;
return dest;
while ((move = pos_next_legal(pos, pseudo, &tmp)) != MOVE_NONE)
legal->move[legal->nmoves++] = move;
return legal;
}
/**
* pos_legal() - get legal moves from pseudo-legal ones in new list.
* @pos: position
* @list: &movelist_t pseudo-legal moves list
*
* The pseudo-legal moves must be already calculated before calling this function.
* @list is replaced by legal moves.
*
* @return: @list
*/
movelist_t *pos_legal(const pos_t *pos, movelist_t *list)
{
move_t *cur = list->move, *last = list->move + list->nmoves;
while (cur < last) {
if (pseudo_is_legal(pos, *cur))
cur++;
else {
*cur = *--last;
}
}
list->nmoves = last - list->move;
return list;
}
/**
@@ -292,7 +320,7 @@ static inline move_t *moves_gen(move_t *moves, square_t from, bitboard_t to_bb)
}
/**
* pos_gen_pseudomoves() - generate position pseudo-legal moves
* pos_gen_pseudo() - generate position pseudo-legal moves
* @pos: position
* @movelist: &movelist_t array to store pseudo-moves
*
@@ -312,9 +340,9 @@ static inline move_t *moves_gen(move_t *moves, square_t from, bitboard_t to_bb)
*
* TODO: move code to specific functions (especially castling, pawn push/capture)
*
* @Return: The total number of moves.
* @Return: movelist
*/
int pos_gen_pseudomoves(pos_t *pos, movelist_t *movelist)
movelist_t *pos_gen_pseudo(pos_t *pos, movelist_t *movelist)
{
color_t us = pos->turn;
color_t them = OPPONENT(us);
@@ -511,5 +539,7 @@ int pos_gen_pseudomoves(pos_t *pos, movelist_t *movelist)
/* TODO: add function per piece, and type, for easier debug
*/
finish:
return movelist->nmoves = moves - movelist->move;
movelist->nmoves = moves - movelist->move;
return movelist;
//return movelist->nmoves = moves - movelist->move;
}