pitrix/src/effect_sines.cpp

#include "effect_sines.h"

SinesEffectSinus::SinesEffectSinus(Window* w) {
	_window = w;
	_frequency = random8(40)+8;
	_amplitude = random(5)+2;
	_x = random8(_window->width);
	_step = 0;
	_color = CHSV(random8(), 255, 255);
}

void SinesEffectSinus::loop(uint16_t ms) {
	_value += _frequency;
	if ((_value == 0 || _value==128) && random8(16)==0) {
		int8_t sign = _value == 0 ? -1 : +1;
		if (_x > 200) sign = -1;
		else if (_x >= _window->width) sign = 1;
		_amplitude = random(3)+2;
		_frequency = random8(40)+8;
		_color = CHSV(random8(), 255, 255);
		_x = _x - sign*_amplitude;
	}
	uint8_t x = _x + ((sin8(_value) - 128) * _amplitude / 128);
	_window->setPixel(x, 0, &_color);
}

SinesEffect::SinesEffect() {
	for (int i=0; i<EFFECT_SINES_COUNT; i++) {
		_sinus[i] = new SinesEffectSinus(window);
	}
}

SinesEffect::~SinesEffect() {
	for (int i=0; i<EFFECT_SINES_COUNT; i++) { delete _sinus[i]; }
}

boolean SinesEffect::can_be_shown_with_clock() {
	return true;
}

void SinesEffect::loop(uint16_t ms) {
	// do stuff
	if (_step++ % 4) return; // Skip 3 out of 4 steps.
	window->shift_down_and_blur();
	for (int i=0; i<EFFECT_SINES_COUNT; i++) {
		_sinus[i]->loop(ms);
	}
}