368 lines
11 KiB
C++
368 lines
11 KiB
C++
// Hyperbolic Rogue -- rule generator
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// Copyright (C) 2011-2021 Zeno Rogue, see 'hyper.cpp' for details
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/** \file rulegen3.cpp
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* \brief An algorithm to create strict tree rules for arb tessellations -- 3D parts
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*/
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#include "hyper.h"
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namespace hr {
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EX namespace rulegen {
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struct road_shortcut_trie_vertex {
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set<vector<int>> backpaths;
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map<int, shared_ptr<struct road_shortcut_trie_vertex>> children;
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};
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EX map<int, shared_ptr<struct road_shortcut_trie_vertex>> road_shortcuts;
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int qroad;
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map<int, int> qroad_for;
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map<tcell*, int> qroad_memo;
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EX void add_road_shortcut(tcell *s, tcell *t) {
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shared_ptr<road_shortcut_trie_vertex> u;
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vector<int> tpath;
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if(!road_shortcuts.count(s->id)) road_shortcuts[s->id] = make_shared<road_shortcut_trie_vertex>();
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u = road_shortcuts[s->id];
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while(true) {
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// println(hlog, s, " dist=", s->dist, " parent = ", s->parent_dir, " vs ", t, " dist=", t->dist, " parent = ", t->parent_dir);
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if(s == t) {
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reverse(tpath.begin(), tpath.end());
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auto& ba = u->backpaths;
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if(!ba.count(tpath)) qroad++, qroad_for[s->id]++;
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ba.insert(tpath);
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return;
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}
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if(s->dist >= t->dist) {
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twalker sw = s;
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get_parent_dir(sw);
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if(s->parent_dir == MYSTERY) throw hr_exception("unknown parent_dir (s) in add_road_shortcut");
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if(!u->children.count(s->parent_dir)) u->children[s->parent_dir] = make_shared<road_shortcut_trie_vertex>();
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u = u->children[s->parent_dir];
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s = s->move(s->parent_dir);
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}
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if(t->dist > s->dist) {
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twalker tw = t;
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get_parent_dir(tw);
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if(t->parent_dir == MYSTERY) throw hr_exception("unknown parent_dir (t) in add_road_shortcut");
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tpath.push_back(t->c.spin(t->parent_dir));
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t = t->move(t->parent_dir);
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}
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}
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}
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EX int newcon;
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EX void apply_road_shortcut(tcell *s) {
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auto& mem = qroad_memo[s];
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if(mem == qroad_for[s->id]) return;
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mem = qroad_for[s->id];
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shared_ptr<road_shortcut_trie_vertex> u;
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if(!road_shortcuts.count(s->id)) return;
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u = road_shortcuts[s->id];
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int q = tcellcount;
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while(true) {
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for(auto& v: u->backpaths) {
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auto s1 = s;
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for(auto x: v) {
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s1 = s1->cmove(x);
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be_solid(s1);
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}
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}
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twalker s0 = s; get_parent_dir(s0);
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if(!u->children.count(s->parent_dir)) break;
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u = u->children[s->parent_dir];
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s = s->move(s->parent_dir);
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}
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static int qmax = 0;
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newcon += tcellcount - q;
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if(tcellcount > q + qmax) println(hlog, "road shortcuts created ", qmax = tcellcount-q, " new connections");
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}
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/** next roadsign ID -- they start at -100 and go downwards */
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int next_roadsign_id = -100;
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/** get the ID of a roadsign path */
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EX map<vector<int>, int> roadsign_id;
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EX int get_roadsign(twalker what) {
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int dlimit = what.at->dist - 1;
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tcell *s = what.at, *t = what.peek();
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apply_road_shortcut(s);
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vector<int> result;
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while(s->dist > dlimit) {
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twalker s0 = s;
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get_parent_dir(s0);
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if(s->parent_dir == MYSTERY) throw hr_exception("parent_dir unknown");
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result.push_back(s->parent_dir); s = s->move(s->parent_dir);
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result.push_back(s->dist - dlimit);
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}
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vector<int> tail;
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while(t->dist > dlimit) {
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twalker t0 = t;
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get_parent_dir(t0);
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if(t->parent_dir == MYSTERY) throw hr_exception("parent_dir unknown");
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tail.push_back(t->dist - dlimit);
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tail.push_back(t->c.spin(t->parent_dir));
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t = t->move(t->parent_dir);
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}
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map<tcell*, int> visited;
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queue<tcell*> vqueue;
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auto visit = [&] (tcell *c, int dir) {
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if(visited.count(c)) return;
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visited[c] = dir;
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vqueue.push(c);
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};
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visit(s, MYSTERY);
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while(true) {
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if(vqueue.empty()) throw hr_exception("vqueue empty");
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tcell *c = vqueue.front();
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if(c == t) break;
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vqueue.pop();
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for(int i=0; i<c->type; i++)
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if(c->move(i) && c->move(i)->dist <= dlimit)
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visit(c->move(i), c->c.spin(i));
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}
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while(t != s) {
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add_road_shortcut(s, t);
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int d = visited.at(t);
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tail.push_back(t->dist - dlimit);
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tail.push_back(t->c.spin(d));
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t = t->move(d);
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}
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reverse(tail.begin(), tail.end());
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for(auto t: tail) result.push_back(t);
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if(roadsign_id.count(result)) return roadsign_id[result];
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return roadsign_id[result] = next_roadsign_id--;
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}
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map<pair<int, int>, vector<pair<int, int>> > all_edges;
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EX vector<pair<int, int>>& check_all_edges(twalker cw, analyzer_state* a, int id) {
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auto& ae = all_edges[{cw.at->id, cw.spin}];
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if(ae.empty()) {
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set<tcell*> seen;
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vector<pair<twalker, transmatrix> > visited;
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vector<pair<int, int>> ae1;
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auto visit = [&] (twalker tw, const transmatrix& T, int id, int dir) {
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if(seen.count(tw.at)) return;
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seen.insert(tw.at);
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auto& sh0 = currentmap->get_cellshape(tcell_to_cell[cw.at]);
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auto& sh1 = currentmap->get_cellshape(tcell_to_cell[tw.at]);
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int common = 0;
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vector<hyperpoint> kleinized;
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vector<hyperpoint> rotated;
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for(auto v: sh0.vertices_only) kleinized.push_back(kleinize(sh0.from_cellcenter * v));
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for(auto w: sh1.vertices_only) rotated.push_back(kleinize(T*sh1.from_cellcenter * w));
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for(auto v: kleinized)
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for(auto w: rotated)
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if(sqhypot_d(MDIM, v-w) < 1e-6)
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common++;
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if(flags & w_vertex_edges) {
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if(common < 1) { ae1.emplace_back(id, dir); return; }
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}
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else {
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if(common < 2) { ae1.emplace_back(id, dir); return; }
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}
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visited.emplace_back(tw, T);
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ae.emplace_back(id, dir);
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};
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visit(cw, Id, -1, -1);
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for(int i=0; i<isize(visited); i++) {
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auto tw = visited[i].first;
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for(int j=0; j<tw.at->type; j++) {
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visit(tw + j + wstep, visited[i].second * currentmap->adj(tcell_to_cell[tw.at], (tw+j).spin), i, j);
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}
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}
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if(flags & w_ae_extra_step) for(auto p: ae1) ae.push_back(p);
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println(hlog, "for ", tie(cw.at->id, cw.spin), " generated all_edges structure: ", ae, " of size ", isize(ae));
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}
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return ae;
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}
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EX void cleanup3() {
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all_edges.clear();
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roadsign_id.clear();
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next_roadsign_id = -100;
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}
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int last_qroad;
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EX void check_road_shortcuts() {
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println(hlog, "road shortcuts = ", qroad, " treestates = ", isize(treestates), " roadsigns = ", next_roadsign_id);
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if(qroad > last_qroad) {
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println(hlog, "qroad_for = ", qroad_for);
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println(hlog, "newcon = ", newcon, " tcellcount = ", tcellcount); newcon = 0;
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clear_codes();
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last_qroad = qroad;
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roadsign_id.clear();
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next_roadsign_id = -100;
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throw rulegen_retry("new road shortcuts");
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}
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}
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void genhoneycomb(string fname) {
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if(WDIM != 3) throw hr_exception("genhoneycomb not in honeycomb");
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int qc = isize(t_origin);
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vector<short> data;
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string side_data;
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map<int, vector<int>> rev_roadsign_id;
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for(auto& rs: roadsign_id) rev_roadsign_id[rs.second] = rs.first;
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int N = isize(treestates);
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using classdata = pair<vector<int>, int>;
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vector<classdata> nclassify(N);
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for(int i=0; i<N; i++) nclassify[i] = {{0}, i};
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int numclass = 1;
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while(true) {
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println(hlog, "N = ", N, " numclass = ", numclass);
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for(int i=0; i<N; i++) {
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auto& ts = treestates[i];
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for(int j=0; j<isize(ts.rules); j++) {
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int j1 = gmod(j - ts.giver.spin, isize(ts.rules));
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auto r = ts.rules[j1];
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if(r < 0) nclassify[i].first.push_back(r);
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else nclassify[i].first.push_back(nclassify[r].first[0]);
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}
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}
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sort(nclassify.begin(), nclassify.end());
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vector<int> last = {}; int newclass = 0;
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for(int i=0; i<N; i++) {
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if(nclassify[i].first != last) {
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newclass++;
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last = nclassify[i].first;
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}
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nclassify[i].first = {newclass-1};
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}
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sort(nclassify.begin(), nclassify.end(), [] (const classdata& a, const classdata& b) { return a.second < b.second; });
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if(numclass == newclass) break;
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numclass = newclass;
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}
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vector<int> representative(numclass);
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for(int i=0; i<isize(treestates); i++) representative[nclassify[i].first[0]] = i;
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println(hlog, "Minimized rules (", numclass, " states):");
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for(int i=0; i<numclass; i++) {
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auto& ts = treestates[representative[i]];
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print(hlog, lalign(4, i), ":");
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for(int j=0; j<isize(ts.rules); j++) {
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int j1 = gmod(j - ts.giver.spin, isize(ts.rules));
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auto r =ts.rules[j1];
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if(r == DIR_PARENT) print(hlog, " P");
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else if(r >= 0) print(hlog, " ", nclassify[r].first[0]);
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else print(hlog, " S", r);
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}
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println(hlog);
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}
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println(hlog);
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vector<int> childpos;
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for(int i=0; i<numclass; i++) {
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childpos.push_back(isize(data));
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auto& ts = treestates[representative[i]];
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for(int j=0; j<isize(ts.rules); j++) {
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int j1 = gmod(j - ts.giver.spin, isize(ts.rules));
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auto r =ts.rules[j1];
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if(r == DIR_PARENT) {
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data.push_back(-1);
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side_data += ('A' + j);
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side_data += ",";
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}
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else if(r >= 0) {
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data.push_back(nclassify[r].first[0]);
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}
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else {
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data.push_back(-1);
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auto& str = rev_roadsign_id[r];
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bool next = true;
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for(auto ch: str) {
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if(next) side_data += ('a' + ch);
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next = !next;
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}
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side_data += ",";
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}
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}
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}
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childpos.push_back(isize(data));
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shstream ss;
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ss.write(ss.get_vernum());
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mapstream::save_geometry(ss);
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ss.write(fieldpattern::use_rule_fp);
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ss.write(fieldpattern::use_quotient_fp);
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ss.write(reg3::minimize_quotient_maps);
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auto& fp = currfp;
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hwrite_fpattern(ss, fp);
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vector<int> root(qc, 0);
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for(int i=0; i<qc; i++) root[i] = nclassify[get_treestate_id(t_origin[i]).second].first[0];
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println(hlog, "root = ", root);
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hwrite(ss, root);
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println(hlog, "data = ", data);
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hwrite(ss, data);
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println(hlog, "side_data = ", side_data);
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hwrite(ss, side_data);
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println(hlog, "childpos = ", childpos);
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hwrite(ss, childpos);
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println(hlog, "compress_string");
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string s = compress_string(ss.s);
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fhstream of(fname, "wb");
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print(of, s);
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}
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#if CAP_COMMANDLINE
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int readRuleArgs3() {
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using namespace arg;
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if(0) ;
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else if(argis("-gen-honeycomb")) {
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shift(); genhoneycomb(args());
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}
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else if(argis("-urq")) {
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// -urq 7 to prepare honeycomb generation
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stop_game();
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shift(); int i = argi();
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reg3::reg3_rule_available = (i & 8) ? 0 : 1;
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fieldpattern::use_rule_fp = (i & 1) ? 1 : 0;
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fieldpattern::use_quotient_fp = (i & 2) ? 1 : 0;
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reg3::minimize_quotient_maps = (i & 4) ? 1 : 0;
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}
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else if(argis("-subrule")) {
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stop_game();
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shift(); reg3::other_rule = args();
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shstream ins(decompress_string(read_file_as_string(args())));
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ins.read(ins.vernum);
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mapstream::load_geometry(ins);
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reg3::subrule = true;
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}
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else if(argis("-less-states")) {
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shift(); rulegen::less_states = argi();
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}
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else return 1;
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return 0;
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}
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auto hook3 = addHook(hooks_args, 100, readRuleArgs3);
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#endif
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}
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} |