static void by_promoted_knight(slice_index si,
unsigned int index_of_checker,
square const check_from)
{
int const diff = being_solved.king_square[Black]-check_from;
int const dir = CheckDir[Knight][diff];
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",index_of_checker);
TraceSquare(check_from);
TraceFunctionParamListEnd();
if (dir!=0
&& intelligent_reserve_promoting_white_pawn_moves_from_to(white[index_of_checker].diagram_square,
Knight,
check_from))
{
occupy_square(check_from,Knight,white[index_of_checker].flags);
init_disturb_mate_dir(check_from,being_solved.king_square[Black]-check_from);
pipe_solve_delegate(si);
fini_disturb_mate_dir();
intelligent_unreserve();
}
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
void intelligent_place_promoted_white_knight(unsigned int placed_index,
square placed_on,
void (*go_on)(void))
{
square const placed_comes_from = white[placed_index].diagram_square;
Flags const placed_flags = white[placed_index].flags;
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",placed_index);
TraceSquare(placed_on);
TraceFunctionParamListEnd();
if (GuardDir[Knight-Pawn][placed_on].dir<guard_dir_guard_uninterceptable
&& intelligent_reserve_promoting_white_pawn_moves_from_to(placed_comes_from,
Knight,
placed_on))
{
occupy_square(placed_on,Knight,placed_flags);
(*go_on)();
intelligent_unreserve();
}
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
static void by_promoted_rider(slice_index si,
unsigned int index_of_checker,
piece_walk_type promotee_type,
square const check_from)
{
int const diff = being_solved.king_square[Black]-check_from;
int const dir = CheckDir[promotee_type][diff];
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",index_of_checker);
TraceWalk(promotee_type);
TraceSquare(check_from);
TraceFunctionParamListEnd();
if (dir!=0
&& intelligent_reserve_promoting_white_pawn_moves_from_to(white[index_of_checker].diagram_square,
promotee_type,
check_from))
{
occupy_square(check_from,promotee_type,white[index_of_checker].flags);
remember_mating_line(promotee_type,check_from,+1);
pipe_solve_delegate(si);
remember_mating_line(promotee_type,check_from,-1);
intelligent_unreserve();
}
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
void intelligent_place_promoted_white_rider(piece_walk_type promotee_type,
unsigned int placed_index,
square placed_on,
void (*go_on)(void))
{
square const placed_comes_from = white[placed_index].diagram_square;
Flags const placed_flags = white[placed_index].flags;
int const dir = GuardDir[promotee_type-Pawn][placed_on].dir;
square const target = GuardDir[promotee_type-Pawn][placed_on].target;
TraceFunctionEntry(__func__);
TraceWalk(promotee_type);
TraceFunctionParam("%u",placed_index);
TraceSquare(placed_on);
TraceFunctionParamListEnd();
if (dir>=guard_dir_guard_uninterceptable)
{
/* nothing */
}
else if (intelligent_reserve_promoting_white_pawn_moves_from_to(placed_comes_from,
promotee_type,
placed_on))
{
occupy_square(placed_on,promotee_type,placed_flags);
if (dir==0 || TSTFLAG(being_solved.spec[target],Black) || !is_line_empty(placed_on,target,dir))
(*go_on)();
else
intelligent_intercept_guard_by_white(target,dir,go_on);
intelligent_unreserve();
}
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
