draw()

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

overridevirtual

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 45 of file pacifica.h.

                                   {
    CRGB *leds = ctx.leds;
    uint32_t now = ctx.now;
    if (leds == nullptr || mNumLeds == 0) {
        return;
    }
 
    // Update the hue each time through the loop
    uint32_t ms = now;
    uint32_t deltams = ms - sLastms;
    sLastms = ms;
    uint16_t speedfactor1 = beatsin16(3, 179, 269);
    uint16_t speedfactor2 = beatsin16(4, 179, 269);
    uint32_t deltams1 = (deltams * speedfactor1) / 256;
    uint32_t deltams2 = (deltams * speedfactor2) / 256;
    uint32_t deltams21 = (deltams1 + deltams2) / 2;
    sCIStart1 += (deltams1 * beatsin88(1011, 10, 13));
    sCIStart2 -= (deltams21 * beatsin88(777, 8, 11));
    sCIStart3 -= (deltams1 * beatsin88(501, 5, 7));
    sCIStart4 -= (deltams2 * beatsin88(257, 4, 6));
 
    // Clear out the LED array to a dim background blue-green
    fill_solid(leds, mNumLeds, CRGB(2, 6, 10));
 
    // Render each of four layers, with different scales and speeds, that vary
    // over time
    pacifica_one_layer(leds, pacifica_palette_1, sCIStart1,
                       beatsin16(3, 11 * 256, 14 * 256), beatsin8(10, 70, 130),
                       0 - beat16(301));
    pacifica_one_layer(leds, pacifica_palette_2, sCIStart2,
                       beatsin16(4, 6 * 256, 9 * 256), beatsin8(17, 40, 80),
                       beat16(401));
    pacifica_one_layer(leds, pacifica_palette_3, sCIStart3, 6 * 256,
                       beatsin8(9, 10, 38), 0 - beat16(503));
    pacifica_one_layer(leds, pacifica_palette_3, sCIStart4, 5 * 256,
                       beatsin8(8, 10, 28), beat16(601));
 
    // Add brighter 'whitecaps' where the waves lines up more
    pacifica_add_whitecaps(leds);
 
    // Deepen the blues and greens a bit
    pacifica_deepen_colors(leds);
}

References beat16(), beatsin16(), beatsin8(), beatsin88(), fill_solid(), fl::_DrawContext::leds, leds, fl::Fx::mNumLeds, fl::_DrawContext::now, pacifica_add_whitecaps(), pacifica_deepen_colors(), pacifica_one_layer(), pacifica_palette_1, pacifica_palette_2, pacifica_palette_3, sCIStart1, sCIStart2, sCIStart3, sCIStart4, and sLastms.

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