Method freshenActivePart

source/base/StarAnimatedPartSet.cpp:264–311

}

void AnimatedPartSet::freshenActivePart(Part& part) {
  if (part.activePartDirty) {
    // First reset all the active part information assuming that no state type
    // x state match exists.
    auto& activePart = part.activePart;
    activePart.activeState = {};
    activePart.properties = part.partProperties;

    // Then go through each of the state types and states and look for a part
    // state match in order of priority.
    for (auto& stateTypePair : m_stateTypes) {
      auto const& stateTypeName = stateTypePair.first;
      auto& stateType = stateTypePair.second;

      // Skip disabled state types
      if (!stateType.enabled)
        continue;

      auto partStateType = part.partStates.ptr(stateTypeName);
      if (!partStateType)
        continue;

      auto const& stateName = stateType.activeState.stateName;
      auto partState = partStateType->ptr(stateName);
      if (!partState)
        continue;

      // If we have a partState match, then set the active state information.
      freshenActiveState(stateType);
      activePart.activeState = stateType.activeState;
      unsigned frame = stateType.activeState.frame;

      // Then set the part state data, as well as any part state frame data if
      // the current frame is within the list size.
      activePart.properties.merge(partState->partStateProperties, true);

      for (auto const& pair : partState->partStateFrameProperties) {
        if (frame < pair.second.size())
          activePart.properties[pair.first] = pair.second.get(frame);
      }

      // Each part can only have one state type x state match, so we are done.
      break;
    }

    part.activePartDirty = false;
  }
}

}