Spookier version of Halloween Eyes
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TripleWhy
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148
wled00/FX.cpp
148
wled00/FX.cpp
@ -2600,9 +2600,27 @@ uint16_t mode_twinklecat()
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static const char _data_FX_MODE_TWINKLECAT[] PROGMEM = "Twinklecat@!,Twinkle rate,,,,Cool;;!";
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//inspired by https://www.tweaking4all.com/hardware/arduino/adruino-led-strip-effects/#LEDStripEffectBlinkingHalloweenEyes
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uint16_t mode_halloween_eyes()
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{
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enum class eyeState : uint8_t {
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initializeOn = 0,
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on,
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blink,
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initializeOff,
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off,
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count
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};
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struct EyeData {
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eyeState state;
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uint8 color;
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uint16_t startPos;
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uint16_t duration;
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uint32_t startTime;
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uint8_t blinkDuration;
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uint32_t blinkStartTime;
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};
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if (SEGLEN == 1) return mode_static();
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const uint16_t maxWidth = strip.isMatrix ? SEGMENT.virtualWidth() : SEGLEN;
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const uint16_t HALLOWEEN_EYE_SPACE = MAX(2, strip.isMatrix ? SEGMENT.virtualWidth()>>4: SEGLEN>>5);
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@ -2610,57 +2628,109 @@ uint16_t mode_halloween_eyes()
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uint16_t eyeLength = (2*HALLOWEEN_EYE_WIDTH) + HALLOWEEN_EYE_SPACE;
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if (eyeLength >= maxWidth) return mode_static(); //bail if segment too short
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if (!SEGENV.allocateData(sizeof(EyeData))) return mode_static(); //allocation failed
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EyeData& data = *reinterpret_cast<EyeData*>(SEGENV.data);
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if (!SEGMENT.check2) SEGMENT.fill(SEGCOLOR(1)); //fill background
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uint8_t state = SEGENV.aux1 >> 8;
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uint16_t stateTime = SEGENV.call;
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if (stateTime == 0) stateTime = 2000;
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data.state = static_cast<eyeState>(static_cast<uint8_t>(data.state) % static_cast<uint8_t>(eyeState::count));
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uint16_t duration = data.duration;
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duration = max(uint16_t{1u}, duration);
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const uint32_t elapsedTime = strip.now - data.startTime;
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if (state == 0) { //spawn eyes
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SEGENV.aux0 = random16(0, maxWidth - eyeLength - 1); //start pos
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SEGENV.aux1 = random8(); //color
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if (strip.isMatrix) SEGMENT.offset = random16(SEGMENT.virtualHeight()-1); // a hack: reuse offset since it is not used in matrices
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state = 1;
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}
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switch (data.state) {
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case eyeState::initializeOn: {
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data.startPos = random16(0, maxWidth - eyeLength - 1);
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data.color = random8();
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if (strip.isMatrix) SEGMENT.offset = random16(SEGMENT.virtualHeight()-1); // a hack: reuse offset since it is not used in matrices
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duration = 128u + random16(SEGMENT.intensity*64u);
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data.duration = duration;
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data.state = eyeState::on;
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[[fallthrough]];
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}
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case eyeState::on: {
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uint16_t start2ndEye = data.startPos + HALLOWEEN_EYE_WIDTH + HALLOWEEN_EYE_SPACE;
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duration = min(duration, static_cast<uint16_t>(128u + (SEGMENT.intensity*64u)));
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if (state < 2) { //fade eyes
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uint16_t startPos = SEGENV.aux0;
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uint16_t start2ndEye = startPos + HALLOWEEN_EYE_WIDTH + HALLOWEEN_EYE_SPACE;
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uint32_t fadestage = (strip.now - SEGENV.step)*255 / stateTime;
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if (fadestage > 255) fadestage = 255;
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uint32_t c = color_blend(SEGMENT.color_from_palette(SEGENV.aux1 & 0xFF, false, false, 0), SEGCOLOR(1), fadestage);
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for (int i = 0; i < HALLOWEEN_EYE_WIDTH; i++) {
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if (strip.isMatrix) {
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SEGMENT.setPixelColorXY(startPos + i, SEGMENT.offset, c);
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SEGMENT.setPixelColorXY(start2ndEye + i, SEGMENT.offset, c);
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} else {
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SEGMENT.setPixelColor(startPos + i, c);
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SEGMENT.setPixelColor(start2ndEye + i, c);
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constexpr uint32_t minimumOnTimeBegin = 1024u;
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constexpr uint32_t minimumOnTimeEnd = 1024u;
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const uint32_t fadeInAnimationState = elapsedTime * static_cast<uint32_t>(256*8) / duration;
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const uint32_t backgroundColor = SEGCOLOR(1);
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const uint32_t eyeColor = SEGMENT.color_from_palette(data.color, false, false, 0);
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uint32_t c = eyeColor;
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if (fadeInAnimationState < 256u) {
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c = color_blend(backgroundColor, eyeColor, fadeInAnimationState);
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} else if (elapsedTime > minimumOnTimeBegin) {
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const uint32_t remainingTime = (elapsedTime >= duration) ? 0u : (duration - elapsedTime);
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if (remainingTime > minimumOnTimeEnd) {
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if (random8() < 4u)
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{
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c = backgroundColor;
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data.state = eyeState::blink;
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data.blinkDuration = random8(8, 128);
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data.blinkStartTime = strip.now;
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}
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}
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}
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if (c != backgroundColor) {
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for (int i = 0; i < HALLOWEEN_EYE_WIDTH; i++) {
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if (strip.isMatrix) {
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SEGMENT.setPixelColorXY(data.startPos + i, SEGMENT.offset, c);
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SEGMENT.setPixelColorXY(start2ndEye + i, SEGMENT.offset, c);
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} else {
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SEGMENT.setPixelColor(data.startPos + i, c);
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SEGMENT.setPixelColor(start2ndEye + i, c);
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}
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}
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}
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break;
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}
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case eyeState::blink: {
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const uint32_t elapsedBlinkTime = strip.now - data.blinkStartTime;
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if (elapsedBlinkTime >= data.blinkDuration) {
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data.state = eyeState::on;
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}
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break;
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}
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case eyeState::initializeOff: {
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const uint16_t eyeOffTimeBase = SEGMENT.speed*128u;
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duration = eyeOffTimeBase + random16(eyeOffTimeBase);
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data.duration = duration;
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data.state = eyeState::off;
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[[fallthrough]];
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}
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case eyeState::off: {
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const uint16_t eyeOffTimeBase = SEGMENT.speed*128u;
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duration = min(duration, static_cast<uint16_t>(2u * eyeOffTimeBase));
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break;
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}
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case eyeState::count: {
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data.state = eyeState::initializeOn;
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break;
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}
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}
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if (strip.now - SEGENV.step > stateTime) {
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state++;
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if (state > 2) state = 0;
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if (state < 2) {
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stateTime = 100 + SEGMENT.intensity*10; //eye fade time
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} else {
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uint16_t eyeOffTimeBase = (256 - SEGMENT.speed)*10;
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stateTime = eyeOffTimeBase + random16(eyeOffTimeBase);
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if (elapsedTime > duration) {
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switch (data.state) {
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case eyeState::initializeOn:
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case eyeState::on:
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case eyeState::blink:
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data.state = eyeState::initializeOff;
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break;
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case eyeState::initializeOff:
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case eyeState::off:
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case eyeState::count:
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default:
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data.state = eyeState::initializeOn;
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break;
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}
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SEGENV.step = strip.now;
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SEGENV.call = stateTime;
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data.startTime = strip.now;
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}
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SEGENV.aux1 = (SEGENV.aux1 & 0xFF) + (state << 8); //save state
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return FRAMETIME;
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}
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static const char _data_FX_MODE_HALLOWEEN_EYES[] PROGMEM = "Halloween Eyes@Duration,Eye fade time,,,,,Overlay;!,!;!;12";
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static const char _data_FX_MODE_HALLOWEEN_EYES[] PROGMEM = "Halloween Eyes@Eye off time,Eye on time,,,,,Overlay;!,!;!;12";
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//Speed slider sets amount of LEDs lit, intensity sets unlit
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@ -1261,7 +1261,7 @@ void WS2812FX::service() {
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Segment::modeBlend(false); // unset semaphore
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}
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#endif
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if (seg.mode != FX_MODE_HALLOWEEN_EYES) seg.call++;
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seg.call++;
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if (seg.transitional && delay > FRAMETIME) delay = FRAMETIME; // force faster updates during transition
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}
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