message: Minor code formatting.
diff: #include "Structure.h"
  +
  class AirShaft: public Structure
  {
  public:
  - AirShaft(): Structure(constants::AIR_SHAFT, "structures/air_shaft.sprite", CLASS_TUBE), _ug(false)
  + AirShaft(): Structure(constants::AIR_SHAFT, "structures/air_shaft.sprite", CLASS_TUBE)
  {
  sprite().play(constants::STRUCTURE_STATE_OPERATIONAL);
  maxAge(400);
  @@ -16,20 +17,13 @@ public:
  }
  - virtual ~AirShaft()
  - {
  - }
  + virtual ~AirShaft() {}
  void ug() { sprite().play(constants::STRUCTURE_STATE_OPERATIONAL_UG); }
  - virtual void forced_state_change(StructureState _s)
  - {
  - if (_ug)
  - return;
  - }
  + virtual void forced_state_change(StructureState _s) { if (_ug) { return; } }
  protected:
  private:
  -
  - bool _ug;
  + bool _ug = false;
  };
  