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#define STEPS_C
#include "steps.h"
/* TODO: change all checkers to use coordinates! */
bool
check_centers(Cube *cube)
{
int i;
for (i = 0; i < 6; i++)
if (cube->xp[i] != i)
return false;
return true;
}
bool
check_coud_HTM(Cube *cube)
{
int i;
for (i = 0; i < 8; i++)
if (cube->co[i] != 0)
return false;
return true;
}
bool
check_coud_URF(Cube *cube)
{
Cube c2, c3;
copy_cube(cube, &c2);
copy_cube(cube, &c3);
apply_move(z, &c2);
apply_move(x, &c3);
return check_coud_HTM(cube) ||
check_coud_HTM(&c2) ||
check_coud_HTM(&c3);
}
bool
check_cp_HTM(Cube *cube)
{
int i;
for (i = 0; i < 8; i++)
if (cube->cp[i] != i)
return false;
return true;
}
bool
check_corners_HTM(Cube *cube)
{
return check_coud_HTM(cube) && check_cp_HTM(cube);
}
bool
check_corners_URF(Cube *cube)
{
Cube c;
Trans i;
for (i = 0; i < NROTATIONS; i++) {
copy_cube(cube, &c);
apply_alg(rotation_alg(i), &c);
if (check_corners_HTM(&c))
return true;
}
return false;
}
bool
check_cornershtr(Cube *cube)
{
/* TODO (use coord) */
return true;
}
bool
check_eofb(Cube *cube)
{
/* TODO (use coord) */
return true;
}
bool
check_drud(Cube *cube)
{
/* TODO (use coord) */
return true;
}
bool
check_htr(Cube *cube)
{
/* TODO (check_drud(cube) and coord_htr_drud == 0) */
return true;
}
bool
validate_singlecw_ending(Alg *alg)
{
int i;
bool nor, inv;
Move l2 = NULLMOVE, l1 = NULLMOVE, l2i = NULLMOVE, l1i = NULLMOVE;
for (i = 0; i < alg->len; i++) {
if (alg->inv[i]) {
l2i = l1i;
l1i = alg->move[i];
} else {
l2 = l1;
l1 = alg->move[i];
}
}
nor = l1 ==base_move(l1) && (!commute(l1, l2) ||l2 ==base_move(l2));
inv = l1i==base_move(l1i) && (!commute(l1i,l2i)||l2i==base_move(l2i));
return nor && inv;
}
/* Public functions **********************************************************/
void
compute_ind(StepAlt *a, Cube *cube, Movable *ind)
{
int i;
Cube mvd;
Trans t, tt;
for (i = 0; i < a->n_coord; i++) {
t = a->coord_trans[i];
copy_cube(cube, &mvd);
apply_trans(t, &mvd);
ind[i].val = index_coord(a->coord[i], &mvd, &tt);
ind[i].t = transform_trans(tt, t);
}
}
int
estimate_stepalt(StepAlt *a, Movable *ind, int goal)
{
int i, ret, est[a->n_coord];
for (i = 0; i < a->n_coord; i++) {
est[i] = ptableval(a->pd[i], ind[i].val);
if (est[i] == a->pd[i]->base && a->compact_pd[i])
est[i] = ptableval(a->fallback_pd[i],
ind[i].val/a->fbmod[i]);
if (ind[i].val != 0 && est[i] == 0) /* est == 0 iff solved */
est[i] = 1;
/*
TODO: remove this debug code
printf("%d: est=%d | ", i, est[i]);
*/
if (est[i] > goal)
return est[i];
}
for (i = 0; i < a->n_dbtrick; i++)
if (est[a->dbtrick[i][0]] > 0 &&
est[a->dbtrick[i][0]] == est[a->dbtrick[i][1]] &&
est[a->dbtrick[i][0]] == est[a->dbtrick[i][2]])
est[a->dbtrick[i][0]] += 1;
for (i = 0, ret = -1; i < a->n_coord; i++)
ret = MAX(ret, est[i]);
/*
TODO: remove this debug code
printf("Final estimate: %d\n", ret);
*/
return ret;
}
void
prepare_step(Step *step, SolveOptions *opts)
{
int i, j;
PDGenData pdg;
StepAlt *a;
for (i = 0; step->alt[i] != NULL; i++) {
a = step->alt[i];
init_moveset(a->moveset);
pdg.moveset = a->moveset;
for (j = 0; j < a->n_coord; j++) {
gen_coord(a->coord[j]);
pdg.coord = a->coord[j];
pdg.compact = a->compact_pd[j];
pdg.pd = NULL;
a->pd[j] = genptable(&pdg, opts->nthreads);
if (a->compact_pd[j]) {
gen_coord(a->fallback_coord[j]);
pdg.coord = a->fallback_coord[j];
pdg.compact = false;
pdg.pd = NULL;
a->fallback_pd[j] =
genptable(&pdg, opts->nthreads);
}
}
}
}
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