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ray:: get_ms function

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This commit is contained in:
Zeno Rogue 2020-07-03 14:54:50 +02:00
parent d0823b70ec
commit dc0ec050af
1 changed files with 34 additions and 22 deletions
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56
raycaster.cpp
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@ -1058,6 +1058,34 @@ color_t color_out_of_range = 0x0F0800FF;
int gms_size;
transmatrix get_ms(cell *c, int a, bool mirror) {
int z = a ? 1 : -1;
if(c->type == 3) {
hyperpoint h =
project_on_triangle(
hybrid::get_corner(c, a, 0, z),
hybrid::get_corner(c, a, 1, z),
hybrid::get_corner(c, a, 2, z)
);
transmatrix T = rspintox(h);
if(mirror) T = T * MirrorX;
return T * xpush(-2*hdist0(h)) * spintox(h);
}
else {
hyperpoint h = Hypc;
for(int a=0; a<c->type; a++) {
hyperpoint corner = hybrid::get_corner(c, a, 0, z);
h += corner;
}
h = normalize(h);
ld d = hdist0(h);
if(h[2] > 0) d = -d;
if(mirror) return MirrorZ * zpush(2*d);
return zpush(2*d);
}
}
EX void cast() {
if(isize(cgi.raywall) > irays) reset_raycaster();
enable_raycaster();
@ -1160,28 +1188,7 @@ EX void cast() {
for(int j=0; j<c->type; j++)
ms[id+j] = hybrid::ray_iadj(c, j);
if(WDIM == 2) for(int a: {0, 1}) {
int z = a ? 1 : -1;
if(c->type == 3) {
hyperpoint h =
project_on_triangle(
hybrid::get_corner(c, a, 0, z),
hybrid::get_corner(c, a, 1, z),
hybrid::get_corner(c, a, 2, z)
);
ms[id+c->type+a] = rspintox(h) * xpush(-2*hdist0(h)) * spintox(h);
}
else {
hyperpoint h = Hypc;
for(int a=0; a<c->type; a++) {
hyperpoint corner = hybrid::get_corner(c, a, 0, z);
h += corner;
}
h = normalize(h);
ld d = hdist0(h);
if(h[2] > 0) d = -d;
ms[id+c->type+a] = zpush(2*d);
}
ms[id+c->type+a] = get_ms(c, a, false);
}
}
@ -1197,6 +1204,11 @@ EX void cast() {
ms.push_back(U);
}
if(WDIM == 2)
for(int a: {0, 1}) {
ms.push_back(get_ms(cs, a, true));
}
if(reg3::ultra_mirror_in()) {
for(auto v: cgi.ultra_mirrors)
ms.push_back(v);