// Hyperbolic Rogue -- regular honeycombs // Copyright (C) 2011-2019 Zeno Rogue, see 'hyper.cpp' for details /** \file reg3.cpp * \brief regular honeycombs * * works with spherical and hyperbolic ones -- Euclidean cubic tiling implemented in euclid.cpp * includes non-quotient spaces as well as field quotient and elliptic spaces * hyperbolic honeycombs rely on binary:: to deal with floating point errors (just like archimedean) */ #include "hyper.h" namespace hr { #if MAXMDIM >= 4 namespace binary { void build_tmatrix(); void virtualRebaseSimple(heptagon*& base, transmatrix& at); int celldistance3(heptagon *c1, heptagon *c2); hyperpoint deparabolic3(hyperpoint h); } EX namespace reg3 { #if HDR inline short& altdist(heptagon *h) { return h->emeraldval; } #endif map close_distances; EX int bucketer(ld x) { return int(x * 10 + 100000.5) - 100000; } EX int bucketer(hyperpoint h) { return bucketer(h[0]) + 1000 * bucketer(h[1]) + 1000000 * bucketer(h[2]); } int loop, face; EX vector cellshape; vector vertices_only; EX transmatrix spins[12], adjmoves[12]; EX ld adjcheck; EX ld strafedist; EX bool dirs_adjacent[16][16]; template ld binsearch(ld dmin, ld dmax, const T& f) { for(int i=0; i<200; i++) { ld d = (dmin + dmax) / 2; if(f(d)) dmax = d; else dmin = d; } return dmin; } EX void generate() { if(S7 == 4) face = 3; if(S7 == 6) face = 4; if(S7 == 12) face = 5; if(S7 == 8) face = 3; /* icosahedron not implemented */ loop = ginf[geometry].tiling_name[5] - '0'; println(hlog, "face = ", face, " loop = ", loop, " S7 = ", S7); /* dual_angle : the angle between two face centers in the dual cell */ ld dual_angle = binsearch(0, M_PI, [&] (ld d) { hyperpoint h0 = cpush(0, 1) * C0; hyperpoint h1 = cspin(0, 1, d) * h0; hyperpoint h2 = cspin(1, 2, 2*M_PI/loop) * h1; return hdist(h0, h1) > hdist(h1, h2); }); /* angle_between_faces : the distance between two face centers of cells */ ld angle_between_faces = binsearch(0, M_PI, [&] (ld d) { hyperpoint h0 = cpush(0, 1) * C0; hyperpoint h1 = cspin(0, 1, d) * h0; hyperpoint h2 = cspin(1, 2, 2*M_PI/face) * h1; return hdist(h0, h1) > hdist(h1, h2); }); if(S7 == 8) { angle_between_faces = min(angle_between_faces, M_PI - angle_between_faces); /* 24-cell is a special case because it is the only one with '4' in the middle of the Schlaefli symbol. */ /* The computations above assume 3 */ hyperpoint h1 = hpxy3(.5,.5,.5); hyperpoint h2 = hpxy3(.5,.5,-.5); dual_angle = hdist(h1, h2); } println(hlog, "angle between faces = ", angle_between_faces); println(hlog, "dual angle = ", dual_angle); ld inp_length = binsearch(0, 1.55, [&] (ld d) { hyperpoint h = xpush(-d) * spin(2*M_PI/face) * xpush0(d); ld alpha = M_PI - atan2(-h[1], h[0]); return (alpha < dual_angle / 2) ? hyperbolic : sphere; }); println(hlog, "inp length = ", inp_length); ld edge_length = hdist(xpush0(inp_length), spin(2*M_PI/face) * xpush0(inp_length)); if(S7 == 8) edge_length = hdist(normalize(hpxyz3(1,1,0,0)), normalize(hpxyz3(1,0,1,0))); println(hlog, "edge length = ", edge_length); /* frontal face direction */ hyperpoint h0 = xtangent(1); /* three faces adjacent to frontal face direction */ hyperpoint h1 = cspin(0, 1, angle_between_faces) * h0; hyperpoint h2 = cspin(1, 2, 2*M_PI/face) * h1; hyperpoint h3 = cspin(1, 2, -2*M_PI/face) * h1; /* directions of vertices [h0,h1,h2] and [h0,h1,h3] */ hyperpoint dir_v2 = S7 == 8 ? (h1 + h2) : (h0 + h1 + h2); hyperpoint dir_v3 = S7 == 8 ? (h1 + h3) : (h0 + h1 + h3); println(hlog, "dir_v2 = ", dir_v2); println(hlog, "dir_v3 = ", dir_v3); dir_v2 = tangent_length(dir_v2, 1); dir_v3 = tangent_length(dir_v3, 1); println(hlog, "S7 = ", S7); println(hlog, "dir_v2 = ", dir_v2); println(hlog, "dir_v3 = ", dir_v3); /* the distance from cell center to cell vertex */ ld vertex_distance; if(cgflags & qIDEAL) { vertex_distance = 13; } else { vertex_distance = binsearch(0, M_PI, [&] (ld d) { // sometimes breaks in elliptic dynamicval g(geometry, elliptic ? gCell120 : geometry); hyperpoint v2 = direct_exp(dir_v2 * d, iTable); hyperpoint v3 = direct_exp(dir_v3 * d, iTable); return hdist(v2, v3) >= edge_length; }); } println(hlog, "vertex_distance = ", vertex_distance); /* actual vertex */ hyperpoint v2 = direct_exp(dir_v2 * vertex_distance, iTable); hyperpoint mid = Hypc; for(int i=0; i known(perm_group, false); known[0] = true; for(int a=0; a .1 && hdist(h, corner3) > .1 && abs(hdist(h, corner0)-hdist(corner0, corner1)) < .1) cornerx = h; println(hlog, "corner0 = ", corner0); println(hlog, "corner1 = ", corner1); println(hlog, "corner3 = ", corner3); println(hlog, "cornerx = ", cornerx); transmatrix adj = Id, iadj = Id; geometry = g; reg3::generate(); cyclers.clear(); println(hlog, "S7 = ", S7); if(S7 == 12) { transmatrix resmatrix; set_column(resmatrix, 0, corner0); set_column(resmatrix, 1, corner1); set_column(resmatrix, 2, corner3); set_column(resmatrix, 3, cornerx); transmatrix transformer; set_column(transformer, 0, C0); set_column(transformer, 1, tC0(reg3::adjmoves[0])); set_column(transformer, 2, tC0(reg3::adjmoves[1])); set_column(transformer, 3, tC0(reg3::adjmoves[2])); transmatrix cav = resmatrix * inverse(transformer); println(hlog, "cav = ", cav); println(hlog, "cav * C0 = ", cav * C0); set seen_matrices; set seen_codes; seek(seen_matrices, seen_codes, Id, 0, corner0); for(int x: seen_codes) cyclers.push_back(x); perm_group = isize(cyclers); adj = cav; iadj = inverse(cav); } else { for(int i=0; i (S7); allh[i]->c7 = newCell(S7, allh[i]); allh[i]->fieldval = i; allh[i]->zebraval = 0; allh[i]->alt = NULL; acells.push_back(allh[i]->c7); } println(hlog, "finding tmatrices..."); tmatrices.resize(cells); for(int i=0; imove(d) = allh[code_to_cell[tmul2]]; allh[i]->c7->move(d) = allh[i]->move(d)->c7; tmatrices[i].push_back(reg3::adjmoves[d] * iadj * fullmatrices[s] * adj); found++; } } if(found != 1) println(hlog, "bad found: ", i, "/", d, "/", found); // println(hlog, "tmatrix(",i,",",d,") = ", tmatrices[i][d]); } } println(hlog, "setting spin..."); for(int i=0; imove(d)->move(e) == allh[i]) { allh[i]->c.setspin(d, e, false); allh[i]->c7->c.setspin(d, e, false); } create_patterns(); } set plane; void make_plane(cellwalker cw) { if(plane.count(cw)) return; plane.insert(cw); for(int i=0; i g(geometry, S7 == 12 ? gField534 : gField435); // also, strafe needs currentmap dynamicval c(currentmap, this); if(S7 == 12) { // Emerald in 534 cell *a = gamestart(); cell *b = a; for(cell *c: allcells()) if(hr::celldistance(a, c) == 5) { b = c; break; } for(cell *c: allcells()) if(hr::celldistance(a, c) > hr::celldistance(b, c)) c->master->zebraval |= 1; // Vineyard in 534 b = (cellwalker(a, 0) + wstep + rev + wstep).at; for(cell *c: allcells()) if(hr::celldistance(a, c) == hr::celldistance(b, c)) c->master->zebraval |= 2; } if(S7 == 6) { // Emerald in 534 cell *a = gamestart(); for(cell *c: allcells()) if(hr::celldistance(a, c) > 3) c->master->zebraval |= 1; // Vineyard in 435 make_plane(cellwalker(gamestart(), 0)); println(hlog, "plane size = ", isize(plane)); set plane_indices; for(auto cw: plane) plane_indices.insert(cw.at->master->fieldval); set nwi; for(int i=0; imaster->fieldval)) ok = false; } if(ok) nwi.insert(i); } int gpow = 0; for(int i: nwi) { int pw = 1; int at = i; while(true) { at = currfp_gmul(at, i); if(!nwi.count(at)) break; pw++; } if(pw == 4) gpow = i; } int u = 0; for(int a=0; a<5; a++) { for(int o: plane_indices) { int j = code_to_cell[currfp_gmul(u, cell_to_code[o])]; allcells()[j]->master->zebraval |= 2; } u = currfp_gmul(u, gpow); } } } void draw() override { sphereflip = Id; // for(int i=0; i(p); transmatrix V = get<1>(p); dynamicval b(band_shift, get<2>(p)); bandfixer bf(V); dq::drawqueue.pop(); cell *c = h->c7; if(!do_draw(c, V)) continue; drawcell(c, V, 0, false); if(wallopt && isWall3(c) && isize(dq::drawqueue) > 1000) continue; for(int d=0; dmove(d), V * tmatrices[h->fieldval][d]); } } transmatrix relative_matrix(heptagon *h2, heptagon *h1) override { if(h1 == h2) return Id; int d = hr::celldistance(h2->c7, h1->c7); for(int a=0; amove(a)->c7, h2->c7) < d) return tmatrices[h1->fieldval][a] * relative_matrix(h2, h1->move(a)); println(hlog, "error in hrmap_field3:::relative_matrix"); return Id; } heptagon *getOrigin() override { return allh[0]; } vector& allcells() override { return acells; } vector get_vertices(cell* c) override { return vertices_only; } }; struct hrmap_reg3 : hrmap { heptagon *origin; hrmap *binary_map; hrmap_quotient3 *quotient_map; unordered_map> reg_gmatrix; unordered_map > > altmap; vector spherecells; vector& allcells() override { if(sphere) return spherecells; return hrmap::allcells(); } hrmap_reg3() { generate(); origin = tailored_alloc (S7); heptagon& h = *origin; h.s = hsOrigin; h.cdata = NULL; h.alt = NULL; h.distance = 0; h.fieldval = 0; h.c7 = newCell(S7, origin); if(sphere) spherecells.push_back(h.c7); worst_error1 = 0, worst_error2 = 0; dynamicval cr(currentmap, this); heptagon *alt = NULL; transmatrix T = Id; binary_map = nullptr; quotient_map = nullptr; #if CAP_FIELD if(geometry == gSpace344) { quotient_map = new hrmap_from_crystal; h.zebraval = quotient_map->allh[0]->zebraval; } if(hyperbolic && !(cgflags & qIDEAL)) { quotient_map = new hrmap_field3; h.zebraval = quotient_map->allh[0]->zebraval; } #endif if(hyperbolic) { dynamicval g(geometry, gBinary3); binary::build_tmatrix(); alt = tailored_alloc (S7); alt->s = hsOrigin; alt->emeraldval = 0; alt->zebraval = 0; alt->distance = 0; alt->alt = alt; alt->cdata = NULL; alt->c7 = NULL; binary_map = binary::new_alt_map(alt); T = xpush(.01241) * spin(1.4117) * xpush(0.1241) * cspin(0, 2, 1.1249) * xpush(0.07) * Id; } reg_gmatrix[origin] = make_pair(alt, T); altmap[alt].emplace_back(origin, T); celllister cl(origin->c7, 4, 100000, NULL); for(cell *c: cl.lst) { hyperpoint h = tC0(relative_matrix(c->master, origin)); close_distances[bucketer(h)] = cl.getdist(c); } } ld worst_error1, worst_error2; heptagon *getOrigin() override { return origin; } void fix_distances(heptagon *h, heptagon *h2) { vector to_fix; auto fix_pair = [&] (heptagon *h, heptagon *h2) { if(!h2) return; if(h->distance > h2->distance+1) { h->distance = h2->distance + 1; to_fix.push_back(h); } else if(h2->distance > h->distance+1) { h2->distance = h->distance + 1; to_fix.push_back(h2); } if(h->alt && h->alt == h2->alt) { if(altdist(h) > altdist(h2) + 1) { altdist(h) = altdist(h2) + 1; to_fix.push_back(h); } else if (altdist(h2) > altdist(h) + 1) { altdist(h2) = altdist(h) + 1; to_fix.push_back(h2); } } }; if(!h2) to_fix = {h}; else fix_pair(h, h2); for(int i=0; imove(j)); } } #define DEB 0 heptagon *counterpart(heptagon *h) { return quotient_map->allh[h->fieldval]; } heptagon *create_step(heptagon *parent, int d) override { auto& p1 = reg_gmatrix[parent]; if(DEB) println(hlog, "creating step ", parent, ":", d, ", at ", p1.first, tC0(p1.second)); heptagon *alt = p1.first; #if CAP_FIELD transmatrix T = p1.second * (quotient_map ? quotient_map->tmatrices[parent->fieldval][d] : adjmoves[d]); #else transmatrix T = p1.second * adjmoves[d]; #endif transmatrix T1 = T; if(hyperbolic) { dynamicval g(geometry, gBinary3); dynamicval cm(currentmap, binary_map); binary::virtualRebaseSimple(alt, T); } fixmatrix(T); auto hT = tC0(T); if(DEB) println(hlog, "searching at ", alt, ":", hT); if(DEB) for(auto& p2: altmap[alt]) println(hlog, "for ", tC0(p2.second), " intval is ", intval(tC0(p2.second), hT)); ld err; for(auto& p2: altmap[alt]) if((err = intval(tC0(p2.second), hT)) < 1e-3) { if(err > worst_error1) println(hlog, format("worst_error1 = %lg", double(worst_error1 = err))); // println(hlog, "YES found in ", isize(altmap[alt])); if(DEB) println(hlog, "-> found ", p2.first); int fb = 0; hyperpoint old = T * (inverse(T1) * tC0(p1.second)); #if CAP_FIELD if(quotient_map) { p2.first->c.connect(counterpart(parent)->c.spin(d), parent, d, false); fix_distances(p2.first, parent); return p2.first; } #endif for(int d2=0; d2 worst_error2) println(hlog, format("worst_error2 = %lg", double(worst_error2 = err))); if(p2.first->move(d2)) println(hlog, "error: repeated edge"); p2.first->c.connect(d2, parent, d, false); fix_distances(p2.first, parent); fb++; } } if(fb != 1) { println(hlog, "found fb = ", fb); println(hlog, old); for(int d2=0; d2c.connect(d, parent, d, false); return parent; } return p2.first; } if(DEB) println(hlog, "-> not found"); int d2 = 0, fv = isize(reg_gmatrix); #if CAP_FIELD if(quotient_map) { auto cp = counterpart(parent); d2 = cp->c.spin(d); fv = cp->c.move(d)->fieldval; } #endif heptagon *created = tailored_alloc (S7); created->c7 = newCell(S7, created); if(sphere) spherecells.push_back(created->c7); created->alt = NULL; created->cdata = NULL; #if CAP_FIELD if(quotient_map) { created->zebraval = quotient_map->allh[fv]->zebraval; } else #endif created->zebraval = hrand(10); created->fieldval = fv; created->distance = parent->distance + 1; fixmatrix(T); reg_gmatrix[created] = make_pair(alt, T); altmap[alt].emplace_back(created, T); created->c.connect(d2, parent, d, false); return created; } ~hrmap_reg3() { if(binary_map) { dynamicval g(geometry, gBinary3); delete binary_map; } if(quotient_map) delete quotient_map; clearfrom(origin); } map reducers; void link_alt(const cellwalker& hs) override { auto h = hs.at->master; altdist(h) = 0; if(h->alt->s != hsOrigin) reducers[h] = hs.spin; } void generateAlts(heptagon* h, int levs, bool link_cdata) override { if(reducers.count(h)) { heptspin hs(h, reducers[h]); reducers.erase(h); hs += wstep; hs += rev; altdist(hs.at) = altdist(h) - 1; hs.at->alt = h->alt; reducers[hs.at] = hs.spin; fix_distances(hs.at, NULL); } for(int i=0; icmove(i); if(h2->alt == NULL) { h2->alt = h->alt; altdist(h2) = altdist(h) + 1; fix_distances(h2, NULL); } } } void draw() override { sphereflip = Id; // for(int i=0; i(p); transmatrix V = get<1>(p); dynamicval b(band_shift, get<2>(p)); bandfixer bf(V); dq::drawqueue.pop(); cell *c = h->c7; if(!do_draw(c, V)) continue; drawcell(c, V, 0, false); if(wallopt && isWall3(c) && isize(dq::drawqueue) > 1000) continue; for(int i=0; imove(i)) { #if CAP_FIELD if(quotient_map) dq::enqueue(h->move(i), V * quotient_map->tmatrices[h->fieldval][i]); else #endif dq::enqueue(h->move(i), V * relative_matrix(h->move(i), h)); } } } transmatrix relative_matrix(heptagon *h2, heptagon *h1) override { auto p1 = reg_gmatrix[h1]; auto p2 = reg_gmatrix[h2]; transmatrix T = Id; if(hyperbolic) { dynamicval g(geometry, gBinary3); dynamicval cm(currentmap, binary_map); T = binary_map->relative_matrix(p2.first, p1.first); } return inverse(p1.second) * T * p2.second; } vector get_vertices(cell* c) override { return vertices_only; } }; EX hrmap* new_map() { if(quotient) return new hrmap_field3; return new hrmap_reg3; } hrmap_reg3* regmap() { return ((hrmap_reg3*) currentmap); } EX int celldistance(cell *c1, cell *c2) { if(c1 == c2) return 0; if(c1 == currentmap->gamestart()) return c2->master->distance; if(c2 == currentmap->gamestart()) return c1->master->distance; auto r = regmap(); hyperpoint h = tC0(r->relative_matrix(c1->master, c2->master)); int b = bucketer(h); if(close_distances.count(b)) return close_distances[b]; dynamicval g(geometry, gBinary3); return 20 + binary::celldistance3(r->reg_gmatrix[c1->master].first, r->reg_gmatrix[c2->master].first); } EX bool pseudohept(cell *c) { auto m = regmap(); if(sphere) { hyperpoint h = tC0(m->relative_matrix(c->master, regmap()->origin)); if(S7 == 12) { hyperpoint h1 = cspin(0, 1, atan2(16, 69) + M_PI/4) * h; for(int i=0; i<4; i++) if(abs(abs(h1[i]) - .5) > .01) return false; return true; } if(S7 == 8) return h[3] >= .99 || h[3] <= -.99 || abs(h[3]) < .01; if(loop == 3 && face == 3 && S7 == 4) return c == m->gamestart(); if(loop == 4 && face == 3) return abs(h[3]) > .9; if(loop == 3 && face == 4) return abs(h[3]) > .9; if(loop == 5 && face == 3) return abs(h[3]) > .99 || abs(h[0]) > .99 || abs(h[1]) > .99 || abs(h[2]) > .99; } // chessboard pattern in 534 if(geometry == gSpace534) return c->master->distance & 1; if(geometry == gField534) return hr::celldistance(c, currentmap->gamestart()) & 1; if(geometry == gCrystal344) return false; if(hyperbolic) { heptagon *h = m->reg_gmatrix[c->master].first; return (h->zebraval == 1) && (h->distance & 1); } return false; } #endif EX void generate_cellrotations() { auto &cr = cgi.cellrotations; if(isize(cr)) return; for(int a=0; a 0.01) continue; vector perm(S7); for(int x=0; xreg_gmatrix[c->master].second); h = binary::deparabolic3(h); return regmap()->reg_gmatrix[c->master].first->distance * log(2) - h[0]; } unordered_map, int> memo; bool cdd; int celldistance(cell *c1, cell *c2) { if(memo.count(make_pair(c1, c2))) return memo[make_pair(c1, c2)]; if(c1 == c2) return 0; vector v[2]; v[0].push_back(c1); v[1].push_back(c2); int steps = 0; map visited; visited[c1] = 1; visited[c2] = 2; while(true) { if(cdd) { println(hlog, "state ", steps, "/",isize(v[0]), "/", isize(v[1])); println(hlog, " A: ", v[0]); println(hlog, " B: ", v[1]); } for(int i: {0,1}) { vector new_v; for(cell *c: v[i]) forCellCM(cn, c) if(adistance(cn) < adistance(c)) { auto &vi = visited[cn]; if((vi&3) == 0) { vi = 4 * (steps+1); vi |= (1<> ca1, ca2; int b1 = 4*steps-4; int b2 = ((vi>>2)<<2) - 4; for(auto p: visited) { if(cdd) println(hlog, p); int ps = p.second & 3; if(ps == 1+i && p.second >= b1) ca1.emplace_back(p.first, p.second/4); if(ps == 2-i && p.second >= b2 && p.second <= b2+8) ca2.emplace_back(p.first, p.second/4); } int bound = 1<<16; for(auto p1: ca1) for(auto p2: ca2) { hyperpoint h = tC0(relative_matrix(p1.first->master, p2.first->master)); int b = bucketer(h); if(close_distances.count(b)) { int d = close_distances[b] + p1.second + p2.second; if(cdd) println(hlog, "candidate: close=", close_distances[b], p1, p2, "; h = ", h); if(d < bound) bound = d; } else if(cdd) println(hlog, "bucket missing"); } return memo[make_pair(c1, c2)] = bound; return bound; } } v[i] = std::move(new_v); } steps++; } } cellwalker target; int tsteps; int dist_alt(cell *c) { if(!target.at) { target = cellwalker(currentmap->gamestart(), 0); tsteps = 0; for(int i=0; i<30; i++) target += wstep, target += rev, tsteps++; } if(specialland == laCamelot) return reg3::celldistance(c, target.at); else { int d = reg3::celldistance(c, target.at) - tsteps; if(d < 10) target += wstep, target += rev, tsteps++; return d; } } #endif // Construct a cellwalker in direction j from cw.at, such that its direction is as close // as possible to cw.spin. Assume that j and cw.spin are adjacent #if MAXMDIM >= 4 EX cellwalker strafe(cellwalker cw, int j) { hyperpoint hfront = tC0(adjmoves[cw.spin]); transmatrix T = currentmap->relative_matrix(cw.at->cmove(j)->master, cw.at->master); for(int i=0; ic.spin(j)) if(hdist(hfront, T * tC0(adjmoves[i])) < strafedist + .01) return cellwalker(cw.at->move(j), i); println(hlog, "incorrect strafe"); exit(1); } EX } #endif }