draw()

void fl::Cylon::draw ( DrawContext context )

inlineoverridevirtual

Parameters

now	The current time in milliseconds. Fx writers are encouraged to use this instead of millis() directly as this will more deterministic behavior.

Implements fl::Fx.

Definition at line 19 of file cylon.h.

                                                         {
        if (context.leds.empty() || mNumLeds == 0) {
            return;
        }
 
        fl::span<CRGB> leds = context.leds;
 
        // Set the current LED to the current hue
        leds[position] = CHSV(hue++, 255, 255);
 
        // Fade all LEDs
        for (u16 i = 0; i < mNumLeds; i++) {
            leds[i].nscale8(fade_amount);
        }
 
        // Move the position
        if (reverse) {
            position--;
            if (position < 0) {
                position = 1;
                reverse = false;
            }
        } else {
            position++;
            if (position >= i16(mNumLeds)) {
                position = mNumLeds - 2;
                reverse = true;
            }
        }
    }

References fade_amount, fl::FL_NO_EXCEPT, hue, leds, fl::Fx::mNumLeds, position, and reverse.