diff options
Diffstat (limited to 'src/colorutils.cpp')
| -rw-r--r-- | src/colorutils.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/colorutils.cpp b/src/colorutils.cpp index 16cf855d..941f4686 100644 --- a/src/colorutils.cpp +++ b/src/colorutils.cpp @@ -62,7 +62,7 @@ void fill_rainbow( struct CHSV * targetArray, int numToFill, } -void fill_rainbow_circular(struct CRGB* targetArray, int numToFill, uint8_t initialhue) +void fill_rainbow_circular(struct CRGB* targetArray, int numToFill, uint8_t initialhue, bool reversed) { if (numToFill == 0) return; // avoiding div/0 @@ -76,12 +76,13 @@ void fill_rainbow_circular(struct CRGB* targetArray, int numToFill, uint8_t init for (int i = 0; i < numToFill; ++i) { targetArray[i] = hsv; - hueOffset += hueChange; // increase precise offset + if (reversed) hueOffset -= hueChange; + else hueOffset += hueChange; hsv.hue = initialhue + (uint8_t)(hueOffset >> 8); // assign new hue with precise offset (as 8-bit) } } -void fill_rainbow_circular(struct CHSV* targetArray, int numToFill, uint8_t initialhue) +void fill_rainbow_circular(struct CHSV* targetArray, int numToFill, uint8_t initialhue, bool reversed) { if (numToFill == 0) return; // avoiding div/0 @@ -95,7 +96,8 @@ void fill_rainbow_circular(struct CHSV* targetArray, int numToFill, uint8_t init for (int i = 0; i < numToFill; ++i) { targetArray[i] = hsv; - hueOffset += hueChange; // increase precise offset + if (reversed) hueOffset -= hueChange; + else hueOffset += hueChange; hsv.hue = initialhue + (uint8_t)(hueOffset >> 8); // assign new hue with precise offset (as 8-bit) } } |