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rogueviz::flocking:: slides added

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Zeno Rogue 2021-04-07 14:49:20 +02:00
parent ab3bb1b378
commit d35085bad5
1 changed files with 103 additions and 1 deletions
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104
rogueviz/flocking.cpp
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@ -519,7 +519,109 @@ namespace flocking {
printf("done\n");
}
auto hooks = addHook(hooks_args, 100, readArgs);
void set_follow() {
follow = (1+follow) % 3;
addMessage("following: " + follow_names[follow]);
}
void flock_slide(tour::presmode mode, int _N, reaction_t t) {
using namespace tour;
setCanvas(mode, '0');
if(mode == pmStart) {
t();
slide_backup(rogueviz::vertex_shape, 3);
N = _N; start_game(); init();
}
if(mode == pmKey) set_follow();
}
auto hooks = addHook(hooks_args, 100, readArgs)
+ addHook(rogueviz::pres::hooks_build_rvtour, 187, [] (string s, vector<tour::slide>& v) {
if(s != "mixed") return;
using namespace tour;
string cap = "flocking simulation/";
string help = "\n\nPress '5' to make the camera follow boids, or 'o' to change more parameters.";
v.push_back(slide{
cap+"Euclidean flocking", 10, LEGAL::NONE | QUICKGEO,
"This is an Euclidean flocking simulation. Boids move according to the following rules:\n\n"
"- separation: they avoid running into other boids\n"
"- alignment: steer toward the average heading of local flockmates\n"
"- cohesion: steer toward the average position of local flockmates\n\n"
"In the Euclidean space, these rules will cause all the boids to align, and fly in the same direction in a nice flock."+help
,
[] (presmode mode) {
flock_slide(mode, 50, [] {
set_geometry(gEuclid);
set_variation(eVariation::bitruncated);
auto& T0 = euc::eu_input.user_axes;
restorers.push_back([] { euc::build_torus3(); });
slide_backup(euc::eu_input);
T0[0][0] = T0[1][1] = 3;
T0[1][0] = T0[0][1] = 0;
euc::eu_input.twisted = 0;
euc::build_torus3();
});
}});
v.push_back(slide{
cap+"spherical flocking", 10, LEGAL::NONE | QUICKGEO,
"Same parameters, but in spherical geometry.\n\n"
"Since parallel lines work differently, the boids do not align that nicely. "
"However, the curvature helps them to maintain a coherent flock."
+help
,
[] (presmode mode) {
flock_slide(mode, 50, [] {
set_geometry(gSphere);
set_variation(eVariation::bitruncated);
});
}});
v.push_back(slide{
cap+"Hyperbolic flocking", 10, LEGAL::NONE | QUICKGEO,
"Same parameters, but the geometry is hyperbolic. Our boids fly in the Klein quartic.\n"
"This time, negative curvature prevents our boids from maintaining a coherent flock."
+help
,
[] (presmode mode) {
flock_slide(mode, 50, [] {
set_geometry(gKleinQuartic);
set_variation(eVariation::bitruncated);
});
}});
v.push_back(slide{
cap+"Hyperbolic flocking again", 10, LEGAL::NONE | QUICKGEO,
"Our boids still fly in the Klein quartic, but now the parameters are changed to "
"make the alignment and cohesion stronger."
,
[] (presmode mode) {
slide_url(mode, 't', "Twitter link", "https://twitter.com/ZenoRogue/status/1064660283581505536");
flock_slide(mode, 50, [] {
set_geometry(gKleinQuartic);
set_variation(eVariation::bitruncated);
slide_backup(align_factor, 2);
slide_backup(align_range, 2);
slide_backup(coh_factor, 2);
});
}});
v.push_back(slide{
cap+"Hyperbolic flocking in 3D", 10, LEGAL::NONE | QUICKGEO,
"Let's try a three-dimensional hyperbolic manifold. Alignment and cohesion are strong again."
,
[] (presmode mode) {
slide_url(mode, 'y', "YouTube link", "https://www.youtube.com/watch?v=kng_4lE0uzo");
flock_slide(mode, 50, [] {
set_geometry(gSpace534);
field_quotient_3d(5, 0x72414D0C);
slide_backup(align_factor, 2);
slide_backup(align_range, 2);
slide_backup(coh_factor, 2);
slide_backup(vid.grid, true);
slide_backup(follow_dist, 1);
});
}});
});
#endif
}