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arb:: improved plain floor shapes

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Zeno Rogue 2020-11-01 11:30:55 +01:00
parent 2ccd0fab9c
commit c828934f89
1 changed files with 42 additions and 0 deletions
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42
floorshapes.cpp
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@ -423,6 +423,48 @@ void geometry_information::generate_floorshapes_for(int id, cell *c, int siid, i
for(int i=0; i<cor; i++) cornerlist.push_back(hpxy(0,0));
}
}
else if(arb::in()) {
vector<hyperpoint> actual;
for(int j=0; j<cor; j++)
actual.push_back(get_corner_position(c, j));
ld min_dist = 1e3;
for(int j=0; j<cor; j++)
for(int k=0; k<j; k++) {
ld dist = hdist(actual[j], actual[k]);
if(dist > 1e-6 && dist < min_dist)
min_dist = dist;
}
ld dist = min_dist * (1 - 3 / sca);
ld area = 0;
for(int j=0; j<cor; j++) {
hyperpoint current = kleinize(actual[j]);
hyperpoint last = kleinize(actual[j?j-1:cor-1]);
area += current[0] * last[1] - last[0] * current[1];
}
if(area < 0) dist = -dist;
for(int j=0; j<cor; j++) {
hyperpoint last = actual[j?j-1:cor-1];
hyperpoint current = actual[j];
hyperpoint next = actual[j<cor-1?j+1:0];
auto T = gpushxto0(current);
last = T * last;
next = T * next;
hyperpoint a = rspintox(last) * ypush0(dist);
hyperpoint b = rspintox(last) * xpush(hdist0(last)) * ypush0(dist);
hyperpoint c = rspintox(next) * ypush0(-dist);
hyperpoint d = rspintox(next) * xpush(hdist0(next)) * ypush0(-dist);
hyperpoint h = linecross(a, b, c, d);
cornerlist.push_back(rgpushxto0(current) * h);
}
}
else {
for(int j=0; j<cor; j++)