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notknot:: optimized by improved loop recording

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This commit is contained in:
Zeno Rogue 2021-03-25 11:41:24 +01:00
parent 693f95f3b4
commit ade0eb2456
1 changed files with 90 additions and 82 deletions
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172
rogueviz/notknot.cpp
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@ -410,7 +410,9 @@ struct hrmap_notknot : hrmap {
unify.emplace_back(a, b);
};
bool make_loop(ucover* u, int loopcount, const vector<int>& looplist) {
map<heptagon*, vector<vector<int> > > uloops;
bool collapse_loop(ucover* u, int loopcount, const vector<int>& looplist) {
auto ux = u;
for(int iter=0; iter<loopcount; iter++)
for(int w: looplist) {
@ -420,9 +422,34 @@ struct hrmap_notknot : hrmap {
add_to_unify(u, ux);
return true;
};
bool verify_loop(ucover* u, int loopcount, const vector<int>& looplist) {
auto ux = u;
for(int iter=0; iter<loopcount; iter++)
for(int w: looplist) {
ux = gen_adj(ux, w);
if(ux->iswall()) return false;
}
return true;
}
set<heptagon*> analyzed;
void record_loop(ucover* u, int loopcount, const vector<int>& looplist) {
vector<int> repeated;
for(int l=0; l<loopcount; l++)
for(auto v: looplist) repeated.push_back(v);
uloops[u->where].push_back(repeated);
};
void record_loop_if_nowall(ucover* u, int loopcount, const vector<int>& looplist) {
if(verify_loop(u, loopcount, looplist))
record_loop(u, loopcount, looplist);
}
void record_loop_verify(ucover* u, int loopcount, const vector<int>& looplist, const hr_exception& ex) {
if(!verify_loop(u, loopcount, looplist)) throw ex;
record_loop(u, loopcount, looplist);
}
transmatrix adj(ucover *u, int k) {
dynamicval<eGeometry> g(geometry, base);
dynamicval<hrmap*> m(currentmap, euc);
@ -447,15 +474,15 @@ struct hrmap_notknot : hrmap {
void unify_homotopies(ucover *u) {
/* unify homotopies */
if(base == gNil) {
make_loop(u, 1, {0, 2, 3, 5});
make_loop(u, 1, {1, 2, 4, 5});
make_loop(u, 1, {0, 1, 3, 4, 2});
collapse_loop(u, 1, {0, 2, 3, 5});
collapse_loop(u, 1, {1, 2, 4, 5});
collapse_loop(u, 1, {0, 1, 3, 4, 2});
return;
}
if(base == gCubeTiling) {
make_loop(u, 1, {0, 1, 3, 4});
make_loop(u, 1, {0, 2, 3, 5});
make_loop(u, 1, {1, 2, 4, 5});
collapse_loop(u, 1, {0, 1, 3, 4});
collapse_loop(u, 1, {0, 2, 3, 5});
collapse_loop(u, 1, {1, 2, 4, 5});
return;
}
@ -492,16 +519,8 @@ struct hrmap_notknot : hrmap {
}
}
map<heptagon*, vector<vector<int> > > uloops;
void unify_loops_general(ucover *u) {
int t = u->where->type;
if(uloops.count(u->where)) {
for(auto& ul: uloops[u->where])
make_loop(u, loop, ul);
return;
}
uloops[u->where] = {};
for(int i=0; i<t; i++) {
auto u1 = gen_adj(u, i);
if(u1->nowall()) continue;
@ -540,8 +559,7 @@ struct hrmap_notknot : hrmap {
println(hlog, "path = ", path);
}
uloops[u->where].push_back(path);
make_loop(u, loop, path);
record_loop_verify(u, loop, path, hr_exception("wall in loops_general"));
}
else {
camefrom[at->where] = ldir;
@ -575,33 +593,22 @@ struct hrmap_notknot : hrmap {
if(base_map == "" && base == gNil) {
special = true;
make_loop(u, loop, {0, 0, 2, 2, 2, 3, 3, 5, 5, 5});
if(u->where->zebraval & 16)
for(int dir: {0,1,2}) {
auto ux = u;
for(int iter=0; iter<nilv::nilperiod[dir]; iter++) {
ux = gen_adj(ux, dir);
if(ux->state != 0) goto next_dir;
}
println(hlog, "succeeded in direction ", dir);
add_to_unify(u, ux);
next_dir: ;
record_loop_if_nowall(u, loop, {0, 0, 2, 2, 2, 3, 3, 5, 5, 5});
if(u->where->zebraval & 16) {
for(int dir: {0,1,2})
record_loop_verify(u, nilv::nilperiod[dir], {dir}, hr_exception("16 failed"));
}
}
if(base_map == "" && base == gArnoldCat) {
if(u->where->zebraval & 16)
for(int dir: {0,4,5}) {
auto ux = u;
int steps = dir ? asonov::period_xy : asonov::period_z;
if(dir) steps *= 2;
for(int iter=0; iter<steps; iter++) {
ux = gen_adj(ux, dir);
if(ux->state != 0) goto next_dir_cat;
if(u->where->zebraval & 16) {
for(int dir: {0,4,5}) {
int steps = dir ? asonov::period_xy : asonov::period_z;
if(dir) steps *= 2;
record_loop_verify(u, steps, {dir}, hr_exception("16 failed"));
}
println(hlog, "succeeded in direction ", dir);
add_to_unify(u, ux);
next_dir_cat: ;
}
if(u->where->zebraval & 128) {
@ -633,15 +640,14 @@ struct hrmap_notknot : hrmap {
add_shift(2-p, 0, -1);
myloop.push_back(0);
if(!make_loop(u, 1, myloop))
throw hr_exception("fail");
record_loop_verify(u, 1, myloop, hr_exception("128 failed"));
}
}
}
if(base == gCubeTiling) {
special = true;
make_loop(u, loop, {0, 0, 1, 1, 3, 3, 4, 4});
record_loop_if_nowall(u, loop, {0, 0, 1, 1, 3, 3, 4, 4});
}
if(base == gCell120) {
@ -656,10 +662,13 @@ struct hrmap_notknot : hrmap {
auto ucur = u;
auto ulast = (ucover*) nullptr;
for(int step=0; step<5*loop; step++) {
vector<int> myloop;
for(int step=0; step<5; step++) {
for(int i=0; i<t; i++) {
auto ucand = ucur->ptr[i];
if(ucand && isNeighbor(ucand->where->c7, u1->where->c7) && isNeighbor(ucand->where->c7, u2->where->c7) && ucand != ulast) {
myloop.push_back(i);
ulast = ucur, ucur = ucand;
goto next_step;
}
@ -668,7 +677,7 @@ struct hrmap_notknot : hrmap {
next_step: ;
}
add_to_unify(u, ucur);
record_loop(u, loop, myloop);
fail: ;
}
}
@ -677,36 +686,9 @@ struct hrmap_notknot : hrmap {
unify_loops_general(u);
if(u->where == all[0]->where)
for(auto& lo: to_unloop)
if(!make_loop(u, 1, lo))
throw hr_exception("given loop goes through a wall");
if(loop_any && u->where == all[0]->where) {
auto us = all[0];
for(int it=1; it<loop_any; it++) {
vector<int> pathback;
auto uc = u;
while(uc->parentdir != -1) {
pathback.push_back(uc->parentdir);
us = gen_adj(us, uc->parentdir);
uc = uc->ptr[(int) uc->parentdir];
}
if(it == 1) println(hlog, "pathback = ", pathback);
for(auto& lo: to_unloop) {
record_loop_verify(u, 1, lo, hr_exception("loop-to-unloop goes through a wall"));
}
add_to_unify(us, u);
}
if(loop_any < 2 && u->where == all[0]->where) {
vector<int> pathback;
auto us = all[0];
auto uc = u;
while(uc->parentdir != -1) {
pathback.push_back(uc->parentdir);
us = gen_adj(us, uc->parentdir);
uc = uc->ptr[(int) uc->parentdir];
}
println(hlog, "pathback = ", pathback);
}
}
map<heptagon*, int> indices;
@ -792,14 +774,40 @@ struct hrmap_notknot : hrmap {
if(i > terminate_at) { u->state |= 4; continue; }
for(int k=0; k<u->where->type; k++) gen_adj(u, k);
if(!analyzed.count(u->where)) {
analyzed.insert(u->where);
unify_homotopies(u);
unify_loops(u);
}
unify_homotopies(u);
unify_loops(u);
if(!uloops.count(u->where)) {
uloops[u->where] = {};
unify_loops(u);
println(hlog, "loops recorded for ", u->where, ": ", isize(uloops[u->where]));
}
for(auto& myloop: uloops[u->where])
if(!collapse_loop(u, 1, myloop))
throw hr_exception("invalid loop recorded");
if(u->where == all[0]->where) {
vector<int> pathback;
auto uc = u;
while(uc->parentdir != -1) {
pathback.push_back(uc->parentdir);
uc = uc->ptr[(int) uc->parentdir];
}
println(hlog, "pathback = ", pathback);
if(loop_any) {
auto us = all[0];
for(int it=1; it<loop_any; it++) {
uc = u;
while(uc->parentdir != -1) {
us = gen_adj(us, uc->parentdir);
uc = uc->ptr[(int) uc->parentdir];
}
}
add_to_unify(us, u);
}
}
}
/* make the walls single-colored */