renderbug/src/animations/SolidAnimation.cpp

#include "SolidAnimation.h"
#include "../Static.h"

SolidAnimation::SolidAnimation() : Figment("Solid", Task::Stopped) {
}

void SolidAnimation::randomize() {
    m_isRandom = true;
    m_blobs.forEach([](Blob& blob) {
        blob.setPos(random(140));
        blob.setBrightness(random(255));
        if (random(255) % 2) {
          blob.setVelocity(-1);
        }
    });
}

void SolidAnimation::handleEvent(const InputEvent& evt) {
    if (evt.intent == InputEvent::SetColor) {
        CRGB nextColor = evt.asRGB();
        m_red.set(nextColor.red);
        m_green.set(nextColor.green);
        m_blue.set(nextColor.blue);
        m_changePct.set(0, 255);
        m_prevColor = m_curColor;
        m_curColor = nextColor;
        m_horizontal = !m_horizontal;
    } else if (evt.intent == InputEvent::Beat) {
        m_isRandom = false;
    }
}

void SolidAnimation::loop() {
    if (!m_isRandom) {
        randomize();
    }
    m_red.update(15);
    m_green.update(15);
    m_blue.update(15);
    EVERY_N_MILLIS(16) {
      m_changePct.update(12);
    }
    EVERY_N_MILLIS(6) {
        CRGB rgb{m_red, m_green, m_blue};
        CHSV hsv = rgb2hsv_approximate(rgb);
        m_blobs.forEach([=](Blob& blob) {
            blob.setHue(hsv.hue);
            blob.setSaturation(hsv.saturation);
        });
        m_blobs.update();
    }
}

#include <Perfcounter.h>

void SolidAnimation::render(Display* dpy) const {
    PerfCounter _("solidRender");
    CRGB color(m_red.value(), m_green.value(), m_blue.value());
    uint8_t frame = ease8InOutApprox(m_changePct);
    if (frame == 255) {
      Surface(dpy, {0, 0}, {255, 255}) = color;
    } else {
      uint8_t cutoff = (frame / 2);
      uint8_t rotation = m_horizontal ? 0 : 128;
      Surface(dpy, {0, 0}, {128 - cutoff, 255}, rotation) = m_prevColor;
      Surface(dpy, {128 - cutoff, 0}, {128 + cutoff, 255}, rotation) = color;
      Surface(dpy, {128 + cutoff, 0}, {255, 255}, rotation) = m_prevColor;
    }
    m_blobs.render(dpy);
}
STATIC_ALLOC(SolidAnimation);
STATIC_TASK(SolidAnimation);