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author | David Madison <dmadison@users.noreply.github.com> | 2022-01-03 00:25:43 +0300 |
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committer | David Madison <dmadison@users.noreply.github.com> | 2022-01-03 00:25:43 +0300 |
commit | dd30fd9143ca2eefaf68d29e5c72e8849e2a7c43 (patch) | |
tree | 7aa43b01ddecf1ac517b864ffd05ce1d60a795c8 /src/colorutils.cpp | |
parent | f2da89411b1180398e204ca8c8522845706954f1 (diff) |
Add reversing option to fill_circular functions
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) } } |