message: Extract common sprite().play call out of Tube::setAnimationState()
diff: @@ -19,26 +19,26 @@ public:
  maxAge(400);
  - setAnimationState();
  + sprite().play(getAnimationName());
  }
  private:
  - void setAnimationState()
  + const std::string& getAnimationName()
  {
  if (mUnderground)
  {
  if (connectorDirection() == ConnectorDir::CONNECTOR_INTERSECTION)
  {
  - sprite().play(constants::UG_TUBE_INTERSECTION);
  + return constants::UG_TUBE_INTERSECTION;
  }
  else if (connectorDirection() == ConnectorDir::CONNECTOR_RIGHT)
  {
  - sprite().play(constants::UG_TUBE_RIGHT);
  + return constants::UG_TUBE_RIGHT;
  }
  else if (connectorDirection() == ConnectorDir::CONNECTOR_LEFT)
  {
  - sprite().play(constants::UG_TUBE_LEFT);
  + return constants::UG_TUBE_LEFT;
  }
  else
  {
  @@ -49,15 +49,15 @@ private:
  {
  if (connectorDirection() == ConnectorDir::CONNECTOR_INTERSECTION)
  {
  - sprite().play(constants::AG_TUBE_INTERSECTION);
  + return constants::AG_TUBE_INTERSECTION;
  }
  else if (connectorDirection() == ConnectorDir::CONNECTOR_RIGHT)
  {
  - sprite().play(constants::AG_TUBE_RIGHT);
  + return constants::AG_TUBE_RIGHT;
  }
  else if (connectorDirection() == ConnectorDir::CONNECTOR_LEFT)
  {
  - sprite().play(constants::AG_TUBE_LEFT);
  + return constants::AG_TUBE_LEFT;
  }
  else
  {
  