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https://github.com/zenorogue/hyperrogue.git
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ideal Voronoi implemented
This commit is contained in:
Zeno Rogue
174
bigstuff.cpp
174
bigstuff.cpp
@@ -219,6 +219,141 @@ void hrmap::extend_altmap(heptagon *h, int levs, bool link_cdata) {
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}
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}
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void new_voronoi_root(heptagon *h, int dist, int dir, eLand last, eLand last2) {
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heptagon *alt = init_heptagon(h->type);
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allmaps.push_back(newAltMap(alt));
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alt->s = hsA;
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alt->alt = alt;
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alt->cdata = (cdata*) h;
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alt->distance = dist;
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h->alt = alt;
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altmap::relspin(alt) = dir;
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horodisk_land[alt] = getNewLand(last, last2);
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horodisk_last_land[alt] = last;
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while(alt->distance > -100) {
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auto alt1 = createStep(alt, 0);
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alt1->alt = alt->alt;
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auto h1 = createStep(h, dir);
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h1->alt = alt1;
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auto dir_alt = alt->c.spin(0);
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auto dir_h = h->c.spin(dir);
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dir = altmap::relspin(alt1) = gmod(dir_h - dir_alt, alt->type);
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h = h1; alt = alt1;
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}
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}
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struct cand_info {
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int best, bqty;
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heptagon *candidate;
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vector<int> free_dirs;
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};
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cand_info voronoi_candidate(heptagon *h) {
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cand_info ci;
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ci.best = 999999; ci.bqty = 0;
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for(int i=0; i<h->type; i++) {
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heptagon *ho = createStep(h, i);
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int ri = h->c.spin(i);
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auto hoa = ho->alt;
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if(hoa && hoa->alt) {
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auto relspin = altmap::relspin(hoa);
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/* we want ho->move(ri) which is hoa->move(ri - relspin) */
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int dir = gmod(ri - relspin, hoa->type);
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heptagon *hoa1 = createStep(hoa, dir);
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if(!hoa1->alt) hoa1->alt = hoa->alt;
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auto dist = hoa1->distance;
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if(dist < ci.best) {
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ci.best = dist;
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ci.bqty = 0;
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}
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if(dist == ci.best && ci.candidate != hoa1) {
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ci.bqty++;
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ci.candidate = hoa1;
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int rb = hoa->c.spin(dir);
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/* hoa1->alt->move(rb) is h->move(rb+relspin to compute) */
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altmap::relspin(ci.candidate) = gmod(i - rb, ci.candidate->type);
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}
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}
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else ci.free_dirs.push_back(i);
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}
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return ci;
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}
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void extend_altmap_voronoi(heptagon *h) {
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if(h->alt) return;
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auto ci = voronoi_candidate(h);
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if(ci.bqty == 0) {
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new_voronoi_root(h, -30, hrand(h->type), laBarrier, laBarrier);
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return;
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}
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else if(ci.bqty > 0 && isize(ci.free_dirs)) {
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auto& expansion = get_expansion();
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ld growth = expansion.get_growth();
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ld odds = pow(growth, ci.candidate->distance) * isize(ci.free_dirs);
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if(hrandf() < odds / (1 + odds)) {
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new_voronoi_root(h, ci.candidate->distance - 1, hrand_elt(ci.free_dirs), horodisk_land[ci.candidate->alt], horodisk_last_land[ci.candidate->alt]);
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return;
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}
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}
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h->alt = ci.candidate;
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}
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EX pair<heptagon*, int> get_voronoi_winner(cell *c) {
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if(c == c->master->c7) {
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extend_altmap_voronoi(c->master);
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auto ci = voronoi_candidate(c->master);
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if(ci.bqty == 1) return { ci.candidate->alt, ci.best };
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else return { nullptr, ci.best };
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}
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else if(!BITRUNCATED) return get_voronoi_winner(c->master->c7);
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else {
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vector<heptagon*> nearh;
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for(int i=0; i<c->type; i++) {
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c->cmove(i);
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if(c->move(i)->master->c7 == c->move(i)) nearh.push_back(c->move(i)->master);
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}
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for(auto h: nearh) extend_altmap_voronoi(h);
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for(auto h: nearh) if(!h->alt) return { nullptr, 0 };
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pair<heptagon*, int> best = {nullptr, 999999};
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int bqty = 0;
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for(auto h: nearh) {
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vector<int> dists;
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for(auto h1: nearh) {
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if(h == h1) dists.push_back(h->alt->distance);
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else {
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for(int i=0; i<h->type; i++) if(h->cmove(i) == h1) {
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auto ha1 = createStep(h->alt, gmod(i - altmap::relspin(h->alt), h->type));
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dists.push_back(ha1->distance);
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}
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}
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}
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sort(dists.begin(), dists.end());
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int gdist;
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if(dists.back() == dists[0]) gdist = dists[0] - 1;
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else if(dists.back() == dists[0] + 2) gdist = dists[0] + 1;
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else gdist = dists[0];
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if(gdist < best.second) {
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best.second = gdist; bqty = 0;
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}
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if(gdist == best.second) {
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bqty++;
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if(bqty == 1 || best.first == h->alt->alt) best.first = h->alt->alt;
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else best.first = nullptr;
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}
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}
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return best;
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}
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}
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#if MAXMDIM >= 4
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EX int hrandom_adjacent(cellwalker cw) {
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auto& da = currentmap->dirdist(cw);
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@@ -1662,6 +1797,7 @@ EX void start_camelot(cell *c) {
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}
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EX map<heptagon*, eLand> horodisk_land;
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EX map<heptagon*, eLand> horodisk_last_land;
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EX void build_horocycles(cell *c, cell *from) {
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@@ -1674,7 +1810,7 @@ EX void build_horocycles(cell *c, cell *from) {
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// buildbigstuff
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if(ls::any_order() && bearsCamelot(c->land) && can_start_horo(c) && !bt::in() &&
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if(ls::any_order() && bearsCamelot(c->land) && can_start_horo(c) && !bt::in() && !ls::voronoi_structure() &&
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#if MAXMDIM >= 4
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!(hyperbolic && WDIM == 3 && !reg3::in_hrmap_rule_or_subrule()) &&
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#endif
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@@ -1978,6 +2114,19 @@ EX void moreBigStuff(cell *c) {
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c->wall = waSea;
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}
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if(ls::voronoi_structure()) {
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auto p = get_voronoi_winner(c);
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auto ph = p.first;
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if(ph) {
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eLand l = horodisk_land[ph];
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setland(c, l);
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if(isEquidLand(l)) c->landparam = 1-p.second;
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}
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else {
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setland(c, laBarrier);
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}
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}
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if(ls::horodisk_structure()) {
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if(have_alt(c) && masterAlt(c) <= 0) {
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gen_alt(c);
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@@ -1997,11 +2146,11 @@ EX void moreBigStuff(cell *c) {
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setland(c, laCrossroads);
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}
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extend_alt(c, laPalace, laPalace, false, PRADIUS1);
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if(!ls::hv_structure()) extend_alt(c, laPalace, laPalace, false, PRADIUS1);
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extend_alt(c, laCanvas, laCanvas);
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if(extend_alt(c, laStorms, laStorms, false) && !ls::hv_structure()) {
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if(!ls::hv_structure() && extend_alt(c, laStorms, laStorms, false)) {
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int d = celldistAlt(c);
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if(d <= -2) {
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c->wall = eubinary ? waCharged : (altmap::which(c->master->alt->alt) & 1) ? waCharged : waGrounded;
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@@ -2020,12 +2169,12 @@ EX void moreBigStuff(cell *c) {
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c->wall = waColumn;
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}
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else if(extend_alt(c, laTemple, laRlyeh) && !ls::hv_structure())
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else if(!ls::hv_structure() && extend_alt(c, laTemple, laRlyeh))
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gen_temple(c);
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if(c->land == laTemple && ls::hv_structure()) gen_temple(c);
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if(ls::hv_structure() && c->land == laTemple) gen_temple(c);
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if(extend_alt(c, laClearing, laOvergrown) && !ls::hv_structure()) {
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if(!ls::hv_structure() && extend_alt(c, laClearing, laOvergrown)) {
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if(in_single_horo(c, laClearing)) {
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c->land = laClearing, c->wall = waNone;
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}
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@@ -2033,16 +2182,21 @@ EX void moreBigStuff(cell *c) {
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c->wall = waSmallTree, c->monst = moNone, c->item = itNone, c->landparam = 1;
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}
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if(c->land == laClearing && ls::hv_structure()) {
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if(ls::horodisk_structure() && c->land == laClearing) {
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if(celldistAlt(c) >= -1)
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c->wall = waSmallTree, c->monst = moNone, c->item = itNone, c->landparam = 1;
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}
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}
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if(extend_alt(c, laMountain, laJungle) && in_single_horo(c, laMountain) && !ls::hv_structure()) {
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if(ls::voronoi_structure() && c->land == laClearing) {
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if(celldistAlt(c) == -20)
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c->wall = waSmallTree, c->monst = moNone, c->item = itNone, c->landparam = 1;
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}
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if(!ls::hv_structure() && extend_alt(c, laMountain, laJungle) && in_single_horo(c, laMountain)) {
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c->land = laMountain, c->wall = waNone;
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}
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if(!ls::horodisk_structure() && extend_alt(c, laWhirlpool, laOcean) && in_single_horo(c, laWhirlpool))
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if(!ls::hv_structure() && extend_alt(c, laWhirlpool, laOcean) && in_single_horo(c, laWhirlpool))
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c->land = laWhirlpool, c->wall = waSea, c->monst = moNone, c->item = itNone;
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}
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