Color interpolation effect

espmusicmouse/lib/ledtl/helpers/ColorConversions.h

@@ -1,3 +1,5 @@
+#pragma once
+
 #include "helpers/ColorHSV.h"
 #include "helpers/ColorRGBW.h"
 

espmusicmouse/lib/ledtl/helpers/ColorHSV.h

@@ -5,4 +5,42 @@
 struct ColorHSV
 {
   float h, s, v;
-};
+};
+
+inline ColorHSV operator*(const ColorHSV &c, float scalar)
+{
+
+  return {scalar * c.h,
+          scalar * c.s,
+          scalar * c.v};
+}
+
+inline ColorHSV operator*(float scalar, const ColorHSV &c)
+{
+  return {scalar * c.h,
+          scalar * c.s,
+          scalar * c.v};
+}
+
+inline ColorHSV operator+(const ColorHSV &c1, const ColorHSV &c2)
+{
+  return {
+      c1.h + c2.h,
+      c1.s + c2.s,
+      c1.v + c2.v};
+}
+
+inline ColorHSV interpolate(const ColorHSV &c1, const ColorHSV &c2, float f)
+{
+  return ColorHSV{
+      (1.0f - f) * c1.h + f * c2.h,
+      (1.0f - f) * c1.s + f * c2.s,
+      (1.0f - f) * c1.v + f * c2.v};
+}
+
+#ifndef PLATFORM_NATIVE
+inline void print(const char *prefix, const ColorHSV &c)
+{
+  Serial.printf("%s HSV(%f, %f, %f)\n", prefix, c.h, c.s, c.v);
+}
+#endif