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asonov:: relative_matrix

This commit is contained in:
Zeno Rogue 2019-11-15 00:26:00 +01:00
parent cd023e982e
commit 2b4f4bd29e
1 changed files with 15 additions and 10 deletions
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25
asonov.cpp
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@ -57,7 +57,6 @@ EX void prepare() {
A[1][0] = 1;
A[1][1] = 2;
// if(true) {
double det = hr::det(A);
if(det != 1) { printf("wrong det\n"); return; }
@ -97,17 +96,23 @@ EX void prepare() {
straighten = inverse(build_matrix(asonov::tx/2, asonov::ty/2, asonov::tz/2, C0));
}
transmatrix coord_to_matrix(coord c, coord zero) {
transmatrix T = Id;
while(zero[2] != c[2]) {
int z = szgmod(c[2] - zero[2], period_z);
if(z > 0) zero = zero.up(), T = eupush(tz) * eupush(ty/2) * T;
else zero = zero.down(), T = eupush(-ty/2) * eupush(-tz) * T;
}
return T * eupush(tx * szgmod(c[0]-zero[0], period_xy) + ty * szgmod(c[1]-zero[1], period_xy));
}
EX transmatrix adjmatrix(int i) {
dynamicval<int> pxy(period_xy, 64);
dynamicval<int> pz(period_z, 64);
coord c = coord(0,0,0).addmove(i);
if(c[0] > period_xy/2) c[0] -= period_xy;
if(c[1] > period_xy/2) c[1] -= period_xy;
if(c[2] > period_z/2) c[2] -= period_z;
transmatrix T = eupush(tz * c[2]) * eupush(tx * c[0] + ty * c[1]);;
if(i < 4) return T * eupush(ty/2);
if(i >= 6 && i < 10) return eupush(-ty/2) * T;
return T;
coord zero(0,0,0);
coord c = zero.addmove(i);
return coord_to_matrix(c, zero);
}
struct hrmap_asonov : hrmap {
@ -149,7 +154,7 @@ struct hrmap_asonov : hrmap {
virtual transmatrix relative_matrix(heptagon *h2, heptagon *h1) override {
for(int a=0; a<S7; a++) if(h2 == h1->move(a)) return adjmatrix(a);
return Id;
return coord_to_matrix(coords[h2], coords[h1]);
}
void draw() override {