28 lines
1.0 KiB
C++
28 lines
1.0 KiB
C++
#include "effects/tv_static.h"
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void TvStaticEffect::loop(uint16_t ms) {
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//uint8_t dark_position = (millis() % settings.effects.tv_static.black_bar_speed) * _window->width / settings.effects.tv_static.black_bar_speed;
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accum88 dark_position = (beat16(settings.effects.tv_static.black_bar_speed) * _window->width) >> 8;
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for (uint8_t y=0; y<_window->height; y++) {
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accum88 row_dark_position = (dark_position + (y<<8)/3) % (_window->width<<8);
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for (uint8_t x=0; x<_window->width; x++) {
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uint8_t brightness = random8();
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uint8_t darkening = 0;
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accum88 distance = (x<<8) - row_dark_position;
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if (distance < 256) darkening = random8(distance, 255);
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else if (distance < (4<<8)) darkening = random8(distance >> 2, 255);
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if (darkening > brightness) brightness = 0;
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else brightness -= darkening;
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CRGB color(brightness, brightness, brightness);
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_window->setPixel(x, y, &color);
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}
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}
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}
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bool TvStaticEffect::can_be_shown_with_clock() { return true; }
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TvStaticEffect::~TvStaticEffect() {
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delete _window;
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}
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