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fix the 2d drift animation #3816

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merged 1 commit into from
Mar 12, 2024
Merged

fix the 2d drift animation #3816

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7 changes: 5 additions & 2 deletions wled00/FX.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -5011,14 +5011,17 @@ uint16_t mode_2DDrift() { // By: Stepko https://editor.soulmateli
const uint16_t cols = SEGMENT.virtualWidth();
const uint16_t rows = SEGMENT.virtualHeight();

const uint16_t colsCenter = (cols>>1) + (cols%2);
const uint16_t rowsCenter = (rows>>1) + (rows%2);

SEGMENT.fadeToBlackBy(128);
const uint16_t maxDim = MAX(cols, rows)/2;
unsigned long t = strip.now / (32 - (SEGMENT.speed>>3));
unsigned long t_20 = t/20; // softhack007: pre-calculating this gives about 10% speedup
for (float i = 1; i < maxDim; i += 0.25) {
float angle = radians(t * (maxDim - i));
uint16_t myX = (cols>>1) + (uint16_t)(sin_t(angle) * i) + (cols%2);
uint16_t myY = (rows>>1) + (uint16_t)(cos_t(angle) * i) + (rows%2);
uint16_t myX = colsCenter + (sin_t(angle) * i);
uint16_t myY = rowsCenter + (cos_t(angle) * i);
SEGMENT.setPixelColorXY(myX, myY, ColorFromPalette(SEGPALETTE, (i * 20) + t_20, 255, LINEARBLEND));
}
SEGMENT.blur(SEGMENT.intensity>>3);
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