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octagonal geometry and 10.0g

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Zeno Rogue
2017-10-27 20:07:58 +02:00
parent b9fe2b3ec9
commit 8a44a09de5
17 changed files with 179 additions and 106 deletions
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21
geometry.cpp
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@@ -13,12 +13,14 @@ ld tessf, crossf, hexf, hcrossf, hexhexdist;
#define ALPHA (M_PI*2/S7)
hyperpoint Crad[42];
hyperpoint Crad[6*MAX_EDGE];
transmatrix heptmove[7], hexmove[7];
transmatrix invheptmove[7], invhexmove[7];
transmatrix heptmove[MAX_EDGE], hexmove[MAX_EDGE];
transmatrix invheptmove[MAX_EDGE], invhexmove[MAX_EDGE];
transmatrix spinmatrix[84];
transmatrix spinmatrix[MAX_EDGE*12];
ld hexshift;
const transmatrix& getspinmatrix(int id) {
while(id>=S84) id -= S84;
@@ -30,11 +32,15 @@ const transmatrix& getspinmatrix(int id) {
// hexf = 0.378077 hcrossf = 0.620672 tessf = 1.090550
// hexhexdist = 0.566256
ld hcrossf7 = 0.620672;
// the distance between two hexagon centers
void precalc() {
DEBB(DF_INIT, (debugfile,"precalc\n"));
hexshift = 0;
if(euclid) return;
@@ -75,8 +81,13 @@ void precalc() {
Crad[i] = spin(2*M_PI*i/S42) * xpush(.4) * C0;
for(int d=0; d<S7; d++)
heptmove[d] = spin(-d * ALPHA) * xpush(tessf) * spin(M_PI);
hexshift = 0;
if(!AT8 && !purehepta)
hexshift = ALPHA/2 + ALPHA * ((S7-1)/2) + M_PI;
for(int d=0; d<S7; d++)
hexmove[d] = spin(-d * ALPHA) * xpush(-crossf)* spin(M_PI);
hexmove[d] = spin(hexshift-d * ALPHA) * xpush(-crossf)* spin(M_PI);
for(int d=0; d<S7; d++) invheptmove[d] = inverse(heptmove[d]);
for(int d=0; d<S7; d++) invhexmove[d] = inverse(hexmove[d]);