Don't use floats for the Haunt effect

Fixes #7.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

src/Kaleidoscope/LED-Stalker.cpp

@@ -92,22 +92,18 @@ namespace KaleidoscopePlugins {
 
     namespace Stalker {
 
+      cRGB Haunt::highlightColor;
+
       // Haunt
-      float Haunt::mb;
-      float Haunt::mg;
-      float Haunt::mr;
-
-      Haunt::Haunt (const cRGB highlightColor) {
-        mb = highlightColor.b / 255.0;
-        mg = highlightColor.g / 255.0;
-        mr = highlightColor.r / 255.0;
+      Haunt::Haunt (const cRGB highlightColor_) {
+        highlightColor = highlightColor_;
       }
 
       cRGB
       Haunt::compute (uint8_t step) {
-        cRGB color = {(uint8_t)min(step * mb, 255),
-                      (uint8_t)min(step * mg, 255),
-                      (uint8_t)min(step * mr, 255)};
+        cRGB color = CRGB((uint8_t)min(step * highlightColor.r / 255, 255),
+                          (uint8_t)min(step * highlightColor.g / 255, 255),
+                          (uint8_t)min(step * highlightColor.b / 255, 255));
 
         return color;
       }

src/Kaleidoscope/LED-Stalker.h

@@ -56,9 +56,8 @@ namespace KaleidoscopePlugins {
         Haunt (void *) : Haunt () {};
 
         virtual cRGB compute (uint8_t step) final;
-
       private:
-        static float mr, mg, mb;
+        static cRGB highlightColor;
       };
 
       class BlazingTrail : public StalkerEffect::ColorComputer {