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Code Issues Releases Wiki Activity

'siblings' patterns on spheres

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Zeno Rogue
2017-12-03 18:24:34 +01:00
parent 3c600d7d6b
commit dadbbf244f
2 changed files with 104 additions and 40 deletions
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57
cell.cpp
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@@ -85,6 +85,8 @@ int spherecells() {
if(S7 == 1) return 1;
return 12;
}
vector<int> siblings;
struct hrmap_spherical : hrmap {
heptagon *dodecahedron[12];
@@ -102,10 +104,15 @@ struct hrmap_spherical : hrmap {
h.alt = NULL;
h.cdata = NULL;
h.spintable = 0;
h.fieldval = i;
for(int i=0; i<S7; i++) h.move[i] = NULL;
h.c7 = newCell(S7, &h);
}
for(int i=0; i<S7; i++) {
if(S7 == 5)
siblings = {1, 0, 10, 4, 3, 8, 9, 11, 5, 6, 2, 7};
else
siblings = {1, 0, 3, 2, 5, 4};
for(int i=0; i<S7; i++) {
dodecahedron[0]->move[i] = dodecahedron[i+1];
dodecahedron[0]->setspin(i, 0);
dodecahedron[i+1]->move[0] = dodecahedron[0];
@@ -1540,3 +1547,51 @@ int getHemisphere(cell *c, int which) {
}
}
struct sphereinfo {
int id;
int dir;
bool reflect;
};
sphereinfo valsphere(cell *c) {
sphereinfo si;
if(ctof(c)) {
int d = c->master->fieldval;
si.id = (d < siblings[d]) ? 0 : 1;
for(int i=0; i<S7; i++) {
int di = c->master->move[i]->fieldval;
if(di == siblings[d]) si.dir = i;
}
si.reflect = false;
}
else {
int ids = 0, tids = 0, td = 0;
for(int i=0; i<S3; i++) {
int d = c->mov[i*2]->master->fieldval;
ids |= (1<<d); tids += d;
}
for(int i=0; i<S3; i++) {
int d = c->mov[i*2]->master->fieldval;
if(ids & (1<<siblings[d])) td += d;
}
if(td) {
si.id = 4;
for(int i=0; i<S3; i++) {
int d = c->mov[i*2]->master->fieldval;
if(!(ids & (1<<siblings[d]))) si.dir = 2*i;
}
si.reflect = false;
}
else {
si.id = 8;
si.dir = 0; // whatever
sphereinfo si2 = valsphere(c->mov[0]);
int di = si2.dir - c->spin(0);
di %= S7;
if(di<0) di += S7;
si.reflect = di > S7/2;
}
}
return si;
}