WIP: settings, color picker and stuff

zephr_math.c

@@ -84,3 +84,26 @@ Color mult_color(Color color, float amount) {
   return result;
 }
 
+Color hsv2rgb(float h, float s, float v) {
+  float c = v * s;
+  float x = (float)(c * (1 - fabs(fmod(h / 60.0, 2) - 1)));
+  float m = v - c;
+
+  float r, g, b;
+
+  if (h >= 0 && h < 60) {
+    r = c, g = x, b = 0;
+  } else if (h >= 60 && h < 120) {
+    r = x, g = c, b = 0;
+  } else if (h >= 120 && h < 180) {
+    r = 0, g = c, b = x;
+  } else if (h >= 180 && h < 240) {
+    r = 0, g = x, b = c;
+  } else if (h >= 240 && h < 300) {
+    r = x, g = 0, b = c;
+  } else {
+    r = c, g = 0, b = x;
+  }
+
+  return (Color){(u8)((r + m) * 255), (u8)((g + m) * 255), (u8)((b + m) * 255), 255};
+}