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rv::pentaroll:: improved

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This commit is contained in:
Zeno Rogue 2020-09-15 20:03:49 +02:00
parent 5b280f4198
commit 02940f0276
1 changed files with 81 additions and 45 deletions
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68
rogueviz/pentaroll.cpp
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@ -10,20 +10,12 @@
namespace hr {
namespace pentaroll {
bool animated;
int args() {
using namespace arg;
if(0) ;
else if(argis("-pentaroll")) {
PHASEFROM(3);
void create_pentaroll() {
start_game();
/* 1 = animated, 0 = not animated */
shift(); animated = argi();
/* get the list of all close cells */
cell *c0 = currentmap->gamestart();
celllister cl(c0, 4, 1000, nullptr);
@ -64,12 +56,32 @@ int args() {
}
}
int args() {
using namespace arg;
if(0) ;
else if(argis("-pentaroll")) {
PHASEFROM(3);
/* 1 = animated, 0 = not animated */
shift(); animated = argi();
}
else return 1;
return 0;
}
/* currently not configurable */
/* if <1, stay closer to the center */
ld how_far = 1;
ld orig_distance = 1;
ld far_distance = 1;
auto hooks =
addHook(hooks_args, 100, args)
+ addHook(hooks_clearmemory, 40, [] () { animated = false; })
+ addHook(anims::hooks_anim, 100, [] {
if(!animated) return;
@ -79,9 +91,31 @@ auto hooks =
int tb = int(t) % cgi.face;
hyperpoint h1 = normalize(cgi.vertices_only[tb]);
hyperpoint h2 = normalize(cgi.vertices_only[(tb+1) % cgi.face]);
hyperpoint h3 = normalize(cgi.vertices_only[(tb+2) % cgi.face]);
hyperpoint m;
for(int i=0; i<cgi.face; i++) m += cgi.vertices_only[i];
m /= cgi.face;
auto normm = [&] (hyperpoint h) {
return normalize(lerp(m, h, how_far));
};
hyperpoint h1 = normm(cgi.vertices_only[tb]);
hyperpoint h2 = normm(cgi.vertices_only[(tb+1) % cgi.face]);
hyperpoint h3 = normm(cgi.vertices_only[(tb+2) % cgi.face]);
hyperpoint a = gpushxto0(h2) * h1;
hyperpoint b = gpushxto0(h2) * h3;
b = spintox(a) * b;
a = spintox(a) * a;
b[3] = 0;
println(hlog, "a = ", a);
println(hlog, "b = ", b);
b /= hypot_d(3, b);
ld angle = acos(b[0]);
println(hlog, "b = ", b);
println(hlog, "angle = ", angle / degree, " deg");
ld tf = t - floor(t);
@ -100,13 +134,15 @@ auto hooks =
/* we move the camera backward */
View = zpush(1) * View;
View = zpush(lerp(orig_distance, far_distance, frac(ticks * 1. / anims::period))) * View;
/* we also need to rotate the view to make it smooth */
View = spin(-(cgi.face == 4 ? 117 : 90) * degree * int(t)) * View;
View = spin((angle-M_PI) * int(t)) * View;
anims::moved();
});
}
}