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Update WS2812FX.cpp

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viknet365 2018-11-20 20:32:21 +01:00 • committed by GitHub
parent a3bef49124
commit 03a33790e1
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wled00/WS2812FX.cpp
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@ -2548,3 +2548,31 @@ uint16_t WS2812FX::mode_lake() {
}
return 33;
}
// meteor effect
// send a meteor from begining to to the end of the strip with a trail that randomly decay.
// adapted from https://www.tweaking4all.com/hardware/arduino/adruino-led-strip-effects/#LEDStripEffectMeteorRain
uint16_t WS2812FX::mode_meteor() {
byte meteorSize=1+(256-SEGMENT.intensity)/16;
uint32_t led_offset = SEGMENT_RUNTIME.counter_mode_step;
uint16_t i = SEGMENT.start + led_offset;
byte meteorTrailDecay=SEGMENT.intensity;
// fade all leds to colors[1] in LEDs one step
for (uint16_t i = SEGMENT.start; i <= SEGMENT.stop; i++) {
if (random(10)>5) {
setPixelColor(i,color_blend(getPixelColor(i),SEGMENT.colors[1],meteorTrailDecay));
}
}
// draw meteor
for(int j = 0; j < meteorSize; j++) {
if( ( SEGMENT.start + j < SEGMENT.stop) ) {
setPixelColor(i+j, SEGMENT.colors[0]);
}
}
SEGMENT_RUNTIME.counter_mode_step = (SEGMENT_RUNTIME.counter_mode_step + 1) % (SEGMENT_LENGTH);
return SPEED_FORMULA_L;
}