Method drawImpl

src/fl/fx/2d/flowfield.cpp.hpp:434–471

}

void FlowFieldFloat::drawImpl(DrawContext context, u32 dt_ms, u32 t_ms) {
    float dt = dt_ms * 0.001f;
    float t = t_ms * 0.001f;

    flowPrepare(t);
    switch (mParams.emitter_mode) {
    case 0:
        emitLissajousLine(t);
        break;
    case 1:
        emitOrbitalDots(t);
        break;
    case 2:
        emitLissajousLine(t);
        emitOrbitalDots(t);
        break;
    default:
        emitLissajousLine(t);
        break;
    }
    flowAdvect(dt);

    int w = (int)getWidth();
    int h = (int)getHeight();
    for (int y = 0; y < h; y++) {
        for (int x = 0; x < w; x++) {
            int ledIdx = mXyMap.mapToIndex(x, y);
            int i = idx(y, x);
            context.leds.data()[ledIdx].r = f2u8(mR[i]);
            context.leds.data()[ledIdx].g = f2u8(mG[i]);
            context.leds.data()[ledIdx].b = f2u8(mB[i]);
        }
    }

    if (mParams.show_flow_vectors) {
        drawFlowVectors(context.leds);
    }
}

} // namespace fl