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Fixed cooling of ignition area.

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This commit is contained in:
Blaz Kristan 2022-09-02 23:27:54 +02:00
parent c4a261f2d2
commit 3287eef0f1
1 changed files with 9 additions and 4 deletions
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13
wled00/FX.cpp
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@ -1982,9 +1982,14 @@ uint16_t mode_fire_2012()
// Step 1. Cool down every cell a little
for (int i = 0; i < SEGLEN; i++) {
uint8_t cool = (((20 + SEGMENT.speed/3) * 16) / SEGLEN);
uint8_t temp = qsub8(heat[i], random8(0, cool + 2));
heat[i] = (temp==0 && i<ignition) ? random8(1,16) : temp; // prevent ignition area from becoming black
uint8_t cool = random8((((20 + SEGMENT.speed/3) * 16) / SEGLEN)+2);
uint8_t minTemp = 0;
if (i<ignition) {
cool /= (ignition-i); // ignition area cools slower
minTemp = 4*(ignition-i) + 8; // and should not become black
}
uint8_t temp = qsub8(heat[i], cool);
heat[i] = i<ignition && temp<minTemp ? minTemp : temp; // prevent ignition area from becoming black
}
// Step 2. Heat from each cell drifts 'up' and diffuses a little
@ -2001,7 +2006,7 @@ uint16_t mode_fire_2012()
// Step 4. Map from heat cells to LED colors
for (int j = 0; j < SEGLEN; j++) {
SEGMENT.setPixelColor(indexToVStrip(j, stripNr), ColorFromPalette(SEGPALETTE, heat[j], 255, NOBLEND));
SEGMENT.setPixelColor(indexToVStrip(j, stripNr), ColorFromPalette(SEGPALETTE, MIN(heat[j],240), 255, NOBLEND));
}
}
};