80 lines
1.4 KiB
C++
80 lines
1.4 KiB
C++
#pragma once
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using namespace NSFastLED;
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template<int ChimeLength>
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class Chime {
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uint16_t m_pos;
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uint8_t m_speed;
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uint16_t m_hue;
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uint16_t m_saturation;
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uint16_t m_brightness;
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unsigned int m_offset;
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public:
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static const int Length = ChimeLength;
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Chime()
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: m_pos(0),
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m_speed(128),
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m_hue(210),
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m_saturation(255),
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m_brightness(255),
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m_offset(0) {}
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void setSaturation(uint8_t i) {
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m_saturation = i % 255;
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}
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void setSpeed(uint8_t i) {
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m_speed = i % 255;
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}
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void setOffset(unsigned int i) {
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m_offset = i;
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}
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void setPos(uint8_t i) {
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m_pos = i;
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}
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void setHue(uint8_t i) {
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m_hue = i % 255;
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}
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void setBrightness(uint8_t i) {
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m_brightness = i % 255;
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}
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void update() {
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m_pos += 1;
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if (random(255) > m_speed) {
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m_pos += 2;
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}
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if (m_pos > ChimeLength * 20) {
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m_pos = 0;
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m_hue += 3;
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m_hue %= 255;
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}
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}
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void render(Display* dpy) const {
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for(int i = 0; i < ChimeLength; i++) {
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if (i > m_pos) {
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dpy->pixelAt(i + m_offset) = CHSV(0, 0, 0);
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} else {
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uint8_t distance = m_pos - i;
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uint8_t brightness = scale8(quadwave8((ChimeLength / (double)distance) * 255), m_brightness);
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if (brightness <= 0.2)
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brightness = 0;
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dpy->pixelAt(VirtualCoordinates{i + m_offset, 0}) = CHSV(m_hue, min(m_saturation, brightness), brightness);
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}
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}
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}
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};
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