pitrix/src/effect_tv_static.cpp

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#include "effect_tv_static.h"
void TvStaticEffect::loop(uint16_t ms) {
uint8_t dark_position = (millis() % settings.effects.tv_static.black_bar_speed) * _window->width / settings.effects.tv_static.black_bar_speed;
for (uint8_t y=0; y<_window->height; y++) {
uint8_t row_dark_position = (dark_position + y/3) % _window->width;
for (uint8_t x=0; x<_window->width; x++) {
uint8_t brightness = random8();
uint8_t darkening = 0;
uint8_t distance = x - row_dark_position;
if (distance == 0) darkening = random8(192, 255);
else if (distance == 1) darkening = random8(128, 255);
else if (distance == 2) darkening = random8(92, 192);
else if (distance == 3) darkening = random8(32, 128);
if (darkening > brightness) brightness = 0;
else brightness -= darkening;
CRGB color(brightness, brightness, brightness);
_window->setPixel(x, y, &color);
}
}
}
bool TvStaticEffect::can_be_shown_with_clock() { return true; }
TvStaticEffect::~TvStaticEffect() {
delete _window;
}