Method VegasVisualizer

examples/LuminescentGrand/shared/Painter.cpp:361–407

}

void Painter::VegasVisualizer(const KeyboardState& keyboard,
                              const int* led_column_table, int led_column_table_length,
                              LedRopeInterface* led_rope) {
 
 led_rope->RawBeginDraw();
                           
 uint32_t skipped_lights = 0;
 for (int i = 0; i < led_column_table_length; ++i) {
    const Key& key = keyboard.mKeys[i];
    uint32_t painted_lights = 0;
    
    // % of lights that are active.
    const float active_lights_factor = led_column_table[i] * fl::sqrt(key.mCurrColor.v_);
    const float inactive_lights_factor = 1.0f - active_lights_factor;
    const float taper_point_1 = inactive_lights_factor / 2.0f;
    const float taper_point_2 = taper_point_1 + active_lights_factor; 
    
    const int taper_idx_1 = static_cast<int>(fl::floor(taper_point_1 * led_column_table[i]));
    const int taper_idx_2 = static_cast<int>(fl::floor(taper_point_2 * led_column_table[i]));
    
    const Color3i c = key.mCurrColor.ToRGB();
    
    for (int i = 0; i < taper_idx_1 / 2; ++i) {
      led_rope->RawDrawPixel(Color3i::Black());
      painted_lights++;
    }
    
    int length = taper_idx_2 - taper_idx_1;
    for (int i = 0; i < fl::min(200, length); ++i) {
      led_rope->RawDrawPixel(c);
      painted_lights++;
    }

    length = led_column_table[i] - taper_idx_2;
    for (int i = 0; i < length; ++i) {
      led_rope->RawDrawPixel(Color3i::Black());
      painted_lights++;
    }
    skipped_lights += fl::max(0, static_cast<int32_t>(led_column_table[i]) - static_cast<int32_t>(painted_lights));
  }
  
  for (uint32_t i = 0; i < skipped_lights; ++i) {
    led_rope->RawDrawPixel(Color3i::Black());
  }

  led_rope->RawCommitDraw();
}

void Painter::PaintBrightSurprise(
    const KeyboardState& keyboard,