Method Paint

examples/LuminescentGrand/shared/Painter.cpp:99–163

void Painter::Paint(uint32_t now_ms,
                    uint32_t delta_ms,
                    VisState vis_state,
                    KeyboardState* keyboard,
                    LedRopeInterface* light_rope) {
  for (int i = 0; i < KeyboardState::kNumKeys; ++i) {
    Key& key = keyboard->mKeys[i];
    
    const float time_delta_ms = static_cast<float>(now_ms - key.mEventTime);
        
    const float lum = CalcLuminance(time_delta_ms, keyboard->mSustainPedal, key, i);
    const float sat = CalcSaturation(time_delta_ms, key.mCurrColor, key.mOn);

    //if (key.mIdx == 56) {
    //  dprint("lum: "); dprint(lum*255.f); dprint(" sat:"); dprintln(sat*255.f);
    //}
    
    key.mCurrColor.v_ = lum;
    key.mCurrColor.s_ = sat;

    // Removing this line breaks one of the visualizers...
    // TODO: Figure out a cleaner solution.
    light_rope->Set(i, key.mCurrColor.ToRGB());
  }

  LedColumns led_columns = LedLayoutArray();

  switch (vis_state) {
    case Painter::kBlockNote: {
      light_rope->DrawSequentialRepeat(kNumLightsPerNote);
      break;
    }
    case Painter::kColumnNote: {
      light_rope->DrawRepeat(led_columns.array, kNumKeys);
      break;
    }
    case Painter::kVUNote: {
      PaintVuNotes(now_ms, *keyboard, led_columns.array, kNumKeys, light_rope);
      break; 
    }
    case Painter::kVUMidNote: {
      PaintVuMidNotesFade(delta_ms, *keyboard, led_columns.array, kNumKeys, light_rope);
      break;
    }
    
    case Painter::kVegas: { // aka "vegas mode?"
      VegasVisualizer(*keyboard, led_columns.array, kNumKeys, light_rope);
      break;
    }
    
    case Painter::kBrightSurprise: {
      PaintBrightSurprise(*keyboard, led_columns.array, kNumKeys, light_rope);
      break;
    }
    
    case Painter::kVUSpaceInvaders: {
      PaintVuSpaceInvaders(now_ms, *keyboard, led_columns.array, kNumKeys, light_rope);
      break;