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altmap:: generate_random_path used

This commit is contained in:
Zeno Rogue 2021-07-31 12:48:52 +02:00
parent 0f2f435534
commit 3972e5a6bb
1 changed files with 13 additions and 37 deletions
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50
bigstuff.cpp
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@ -257,65 +257,41 @@ EX heptagon *create_altmap(cell *c, int rad, hstate firststate, int special IS(0
if(!weirdhyperbolic && !(checkBarriersFront(bb) && checkBarriersBack(bb))) {
return NULL;
}
cellwalker bf(c, gdir); bf += rev;
auto p = generate_random_path(bf, rad, false, false);
// if we always go to the opposite tile on a {even,x} tiling,
// it will be too easy
int flip = 0;
if(WDIM == 2 && S7 % 2 == 0) flip = hrand(2) ? 1 : -1;
// okay, let's go then!
cellwalker bf(c, gdir);
std::vector<cell *> cx(rad+1);
for(int i=0; i<rad; i++) {
cx[i] = bf.at;
bf += revstep;
if(flip && hrand(2) == 0) { bf += flip; flip *= -1; }
#if MAXMDIM >= 4
// in 3D honeycombs we vary the direction, but never for three successive i's
if(WDIM == 3 && firststate == hsOrigin && (i%3))
bf.spin = hrandom_adjacent(bf);
#endif
}
cx[rad] = bf.at;
heptagon *h = bf.at->master;
heptagon *h = p.last.at->master;
if(h->alt) {
printf("Error: creatingAlternateMap while one already exists\n");
return NULL;
}
if(special == waPalace) {
// type 7 is ensured
cell *c = bf.at;
if(cdist50(c) != 0) return NULL;
if(!polarb50(c)) return NULL;
if(special == waPalace) {
cell *c = p.last.at;
if(!ctof(c) || cdist50(c) != 0 || !polarb50(c)) return nullptr;
}
bf += rev;
heptagon *alt = init_heptagon(h->type);
allmaps.push_back(newAltMap(alt));
//printf("new alt {%p}\n", hr::voidp(alt));
alt->s = firststate;
if(hybri) hybrid::altmap_heights[alt] = hybrid::get_where(centerover).second;
alt->alt = alt;
if(!currentmap->link_alt(h, alt, firststate, bf.spin)) {
if(!currentmap->link_alt(h, alt, firststate, p.last.spin)) {
return nullptr;
}
if(hybri) hybrid::altmap_heights[alt] = hybrid::get_where(centerover).second;
alt->alt = alt;
h->alt = alt;
alt->cdata = (cdata*) h;
for(int d=rad; d>=0; d--) {
currentmap->extend_altmap(cx[d]->master);
preventbarriers(cx[d]);
currentmap->extend_altmap(p.path[d]->master);
preventbarriers(p.path[d]);
}
if(special == waPalace) {
cell *c = bf.at;
cell *c = p.last.at;
princess::generating = true;
c->land = laPalace;