temp commit

Co-authored-by: David Lechner <[email protected]>
pybricks · Sep 5, 2022 · 14c82b6 · 14c82b6
1 parent 3b7e902
commit 14c82b6
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/lib/pbio/src/color/util.c b/lib/pbio/src/color/util.c
@@ -8,7 +8,7 @@ int32_t sin_deg_branch0(int32_t x) {
 }
 
 // integer sine approximation from degrees to (-10000, 10000)
-int32_t sin_deg(int32_t x) {
+static int32_t sin_deg(int32_t x) {
     x = x % 360;
     if (x < 90) {
         return sin_deg_branch0(x);
@@ -22,11 +22,16 @@ int32_t sin_deg(int32_t x) {
     return -sin_deg_branch0(360 - x);
 }
 
-int32_t cos_deg(int32_t x) {
+static int32_t cos_deg(int32_t x) {
     return sin_deg(x + 90);
 }
 
-// gets squared cartesian distance between hsv colors mapped into a chroma-lightness-bicone
+/**
+ * Gets squared Cartesian distance between HSV colors mapped into a chroma-lightness-bicone.
+ * @param [in]  hsv_a    The first HSV color.
+ * @param [in]  hsv_b    The second HSV color.
+ * @returns              This distance (0 to ???).
+ */
 int32_t pbio_get_bicone_cost(const pbio_color_hsv_t *hsv_a, const pbio_color_hsv_t *hsv_b) {
 
     int32_t a_h = hsv_a->h;