/* Try to solve in solve_nr_remaining half-moves.
* @param si slice index
* @note assigns solve_result the length of solution found and written, i.e.:
* previous_move_is_illegal the move just played is illegal
* this_move_is_illegal the move being played is illegal
* immobility_on_next_move the moves just played led to an
* unintended immobility on the next move
* <=n+1 length of shortest solution found (n+1 only if in next
* branch)
* n+2 no solution found in this branch
* n+3 no solution found in next branch
* (with n denominating solve_nr_remaining)
*/
void retro_start_retro_move_ply(slice_index si)
{
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",si);
TraceFunctionParamListEnd();
/* Make sure that trait is the opposite of the first move (or there
* will be no e.p. capture). */
assert(slices[si].starter!=no_side);
nextply(advers(slices[si].starter));
assert(nbply==ply_retro_move);
{
/* TODO let Mars Circe or SingleBox Type 3 add slices here that do this */
unsigned int i;
for (i = 0; i!=move_effect_journal_index_offset_capture; ++i)
move_effect_journal_do_null_effect();
}
pipe_solve_delegate(si);
undo_move_effects();
finply();
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
/* Try to solve in solve_nr_remaining half-moves.
* @param si slice index
* @note assigns solve_result the length of solution found and written, i.e.:
* previous_move_is_illegal the move just played is illegal
* this_move_is_illegal the move being played is illegal
* immobility_on_next_move the moves just played led to an
* unintended immobility on the next move
* <=n+1 length of shortest solution found (n+1 only if in next
* branch)
* n+2 no solution found in this branch
* n+3 no solution found in next branch
* (with n denominating solve_nr_remaining)
*/
void move_generator_solve(slice_index si)
{
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",si);
TraceFunctionParamListEnd();
nextply(SLICE_STARTER(si));
genmove();
pipe_solve_delegate(si);
finply();
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}
/* Try to solve in solve_nr_remaining half-moves.
* @param si slice index
* @note assigns solve_result the length of solution found and written, i.e.:
* previous_move_is_illegal the move just played is illegal
* this_move_is_illegal the move being played is illegal
* immobility_on_next_move the moves just played led to an
* unintended immobility on the next move
* <=n+1 length of shortest solution found (n+1 only if in next
* branch)
* n+2 no solution found in this branch
* n+3 no solution found in next branch
* (with n denominating solve_nr_remaining)
*/
void retro_start_retraction_ply(slice_index si)
{
TraceFunctionEntry(__func__);
TraceFunctionParam("%u",si);
TraceFunctionParamListEnd();
nextply(no_side);
assert(nbply==ply_retro_move_takeback);
pipe_solve_delegate(si);
undo_move_effects();
finply();
TraceFunctionExit(__func__);
TraceFunctionResultEnd();
}