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qtm:: rainbow colored hyperbolic

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This commit is contained in:
Zeno Rogue 2020-05-09 18:33:53 +02:00
parent 29c7faa264
commit e644ebf1ea
1 changed files with 28 additions and 2 deletions
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30
rogueviz/qtm.cpp
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@ -32,6 +32,30 @@ color_t rcolor() {
swap(part(res, 2), part(res, rand() % 3));
return res;
}
color_t rainbow_color(hyperpoint h) {
ld sat = 1 - 1 / h[2];
ld hue = atan2(h[0], h[1]) / (2 * M_PI);
hue = frac(hue);
if(hue < 0) hue++;
hue *= 6;
color_t res;
if(hue<1) res = gradient(0xFF0000, 0xFFFF00, 0, hue, 1);
else if(hue<2) res = gradient(0x00FF00, 0xFFFF00, 2, hue, 1);
else if(hue<3) res = gradient(0x00FF00, 0x00FFFF, 2, hue, 3);
else if(hue<4) res = gradient(0x0000FF, 0x00FFFF, 4, hue, 3);
else if(hue<5) res = gradient(0x0000FF, 0xFF00FF, 4, hue, 5);
else if(hue<6) res = gradient(0xFF0000, 0xFF00FF, 6, hue, 5);
println(hlog, "sat = ", sat, " hue = ", hue);
return gradient(0xFFFFFF, res, 0, sat, 1);
}
void set_cell(cell *c) {
if(hybri) {
@ -54,8 +78,10 @@ void set_cell(cell *c) {
else {
if(c->land == laHive) return;
color_t col;
if(hyperbolic)
col = rcolor();
if(hyperbolic) {
hyperpoint h = calc_relative_matrix(c, currentmap->gamestart(), C0) * C0;
col = rainbow_color(h);
}
else if(nil) {
part(col, 0) = 128 + c->master->zebraval * 50;
part(col, 1) = 128 + c->master->emeraldval * 50;