map scroll

mapscroll.cpp

auto panMapLeft  = [&mapView] (float speed, float time) { mapView.move(-speed * time, 0.f); };
auto panMapRight = [&mapView] (float speed, float time) { mapView.move(speed * time, 0.f);  };
auto panMapUp    = [&mapView] (float speed, float time) { mapView.move(0.f, -speed * time); };
auto panMapDown  = [&mapView] (float speed, float time) { mapView.move(0.f, speed * time);  };

// Map scroll
float mapScrollSpeed     = 1000.f; // The speed of the scrolling
if (event.type == sf::Event::KeyPressed)
{
    // Pan left
    if (event.key.code == sf::Keyboard::A) panMapLeft(mapScrollSpeed, elapsedTime.asSeconds());
    // Pan right
    if (event.key.code == sf::Keyboard::D) panMapRight(mapScrollSpeed, elapsedTime.asSeconds());
    // Pan up
    if (event.key.code == sf::Keyboard::W) panMapUp(mapScrollSpeed, elapsedTime.asSeconds());
    // Pan up
    if (event.key.code == sf::Keyboard::S) panMapDown(mapScrollSpeed, elapsedTime.asSeconds());
}