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hsv color definition

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Zeno Rogue 2024-05-27 13:53:01 +02:00
parent 937a291485
commit 03c549b010
1 changed files with 10 additions and 3 deletions
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13
util.cpp
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@ -537,9 +537,7 @@ color_t part_to_col(array<ld, 4> parts) {
color_t res;
for(int i=0; i<4; i++) {
ld v = parts[i];
if(v < 0) part(res, i) = 0;
else if(v > 1) part(res, i) = 255;
else part(res, i) = int(v * 255 + .5);
part(res, i) = clamp(int(v * 255 + .5), 0, 255);
}
return res;
}
@ -579,6 +577,15 @@ color_t exp_parser::parsecolor(int prio) {
force_eat(")");
return part_to_col(parts);
}
if(eat("hsv(")) {
ld hue = rparse();
ld sat = eat(",") ? rparse() : 1;
ld value = eat(",") ? rparse() : 1;
ld alpha = eat(",") ? rparse() : 1;
color_t col = (rainbow_color(sat, hue) << 8) | 0xFF;
if(value < 1) col = gradient(0, col, 0, value, 1);
if(alpha < 1) part(col, 0) = clamp(alpha * 255, 0, 255);
}
if(eat("lerp(")) {
color_t a = parsecolor();
force_eat(",");