int mbh_compare_wr(void* context, void* left, void* right) {
whp wh = P2I(context);
walker* w = DWP(wh);
wrhp wlh = P2I(left);
wrhp wrh = P2I(right);
walk_result* wl = DWRP(wh, wlh);
walk_result* wr = DWRP(wh, wrh);
return w->cmper(wr_next_discard(w, wl), wr_next_discard(w, wr));
}
void AddWaypoint(uint32 id, float x, float y, float z)
{
WayPoints DWP(id, x, y, z);
WayPointList.push_back(DWP);
}
wrhp walker_findnext(whp wh) {
walker* w = DWP(wh);
walk_result* next;
walk_result* split;
wrhp nexth;
int limitbit, i;
while (1) {
if (mbh_size(w->heap) == 0)
return (wrhp)0;
/* pick_arena first, since arena may move */
w_pick_arena(w, split);
next = pop_heap(w);
limitbit = next->nextbit;
mpx_set(wr_discard_direct(w, split), w->numsize,
wr_next_discard(w, next), w->numsize);
split->invsum = next->invsum;
memcpy(wr_vec_direct(w, split), wr_vec_direct(w, next),
w->vecsize * sizeof(int));
if (next->nextbit == w->pp->valsize) {
/* first */
--next->nextbit;
w->adder(wr_next_discard(w, next), wr_discard_direct(w, next),
ppv_mpx(pp_value_i(w->pp, next->nextbit)));
if (!qualify(w, next)) {
w_free_arena(w, next);
} else {
push_heap(w, next);
}
w_free_arena(w, split);
goto found_line;
}
--next->nextbit;
if (next->nextbit < 0) {
w_free_arena(w, next);
} else if (wr_testbit(w, next, next->nextbit)) {
w_free_arena(w, next);
} else {
w->adder(wr_next_discard(w, next), wr_discard_direct(w, next),
ppv_mpx(pp_value_i(w->pp, next->nextbit)));
if (!qualify(w, next)) {
w_free_arena(w, next);
} else {
push_heap(w, next);
}
}
split->invsum = (split->invsum + pp_value_i(w->pp, limitbit)->inv)
% w->pp->p;
wr_setbit(w, split, limitbit);
for (i = w->pp->valsize - 1; i > limitbit; --i) {
if (!wr_testbit(w, split, i))
break;
}
if (i <= limitbit) {
w_free_arena(w, split);
} else {
split->nextbit = i;
w->adder(wr_next_discard(w, split), wr_discard_direct(w, split),
ppv_mpx(pp_value_i(w->pp, i)));
if (!qualify(w, split)) {
w_free_arena(w, split);
} else {
push_heap(w, split);
}
}
next = split;
found_line:
nexth = WRHP(w, next);
if (next->invsum != w->invsum)
continue;
if (w->have_previous
&& w->cmper(wr_discard_direct(w, next), w_previous(w)) == 0)
continue;
w->have_previous = 1;
mpx_set(w_previous(w), w->numsize,
wr_discard_direct(w, next), w->numsize);
return nexth;
}
}
