2.6.2 to 3.0.0 Event

[HeinzK]

//while (pWindow->pollEvent(Event))
while (const std::optional Event = pWindow->pollEvent())
{
  //if (Event.type == sf::Event::Closed)
  if (Event->is<sf::Event::Closed>())
  {
    pWindow->close();   //> Und raus ..:

  }

  //if (Event.type == sf::Event::GainedFocus)
  if (Event->is<sf::Event::GainedFocus>())     //> a) ???:
  { .. }

  //if (Event.type == sf::Event::LostFocus)
  if (Event->is<sf::Event::LostFocus>())       //> b) ???:
  { .. }

  //if (Event.type == sf::Event::MouseWheelScrolled)
  if (Event->is<sf::Event::MouseWheelScrolled>())
  {
    #ifdef ZWIANER_VERSION_K
      pMaus->SetlMausMoveZpp((long)Event.mouseWheelScroll.delta);  //> c) ???:
    #endif
  }

  ..
}

.. what must I do by a) b) c) ..

[eXpl0it3r]

I recommend to check the updated tutorial for event handling, since it comes with example code for each event type (e.g. MouseWheelScrolled).

You can use event->is<T>() if you're not interested in any of the event data or the event doesn't have any data, otherwise you can use event->getIf<T>() to get the event data.

You may also want to use else if so you don't have to check all the event types.

//while (pWindow->pollEvent(Event))
while (const std::optional Event = pWindow->pollEvent())
{
  //if (Event.type == sf::Event::Closed)
  if (Event->is<sf::Event::Closed>())
  {
    pWindow->close();   //> Und raus ..:

  }

  //if (Event.type == sf::Event::GainedFocus)
  else if (Event->is<sf::Event::GainedFocus>())     //> a) ???:
  { .. }

  //if (Event.type == sf::Event::LostFocus)
  else if (Event->is<sf::Event::LostFocus>())       //> b) ???:
  { .. }

  //if (Event.type == sf::Event::MouseWheelScrolled)
  else if (const auto* mouseWheelScrolled = Event->getIf<sf::Event::MouseWheelScrolled>())
  {
    #ifdef ZWIANER_VERSION_K
      pMaus->SetlMausMoveZpp((long)mouseWheelScrolled->delta);  //> c) ???:
    #endif
  }

  ..
}