mouse_edge_scroll.cpp

// Map edge scrolling
if (mousePosition.x < mapScrollTreshold && mousePosition.x >= 0) {
    mapScrollSpeed += (mapScrollSpeed - mousePosition.x) * 1.5f;
    panMapLeft(mapScrollSpeed, TimePerFrame);
}

if (mousePosition.x >= window.getSize().x - mapScrollTreshold
    && mousePosition.x <= window.getSize().x) {
    mapScrollSpeed += (window.getSize().x - mousePosition.x) * 1.5f;
    panMapRight(mapScrollSpeed, TimePerFrame);
}

if (mousePosition.y < mapScrollTreshold && mousePosition.y >= 0) {
    mapScrollSpeed += (mapScrollTreshold - mousePosition.y) * 1.5f;
    panMapUp(mapScrollSpeed, TimePerFrame);
}

if (mousePosition.y >= window.getSize().y - mapScrollTreshold
    && mousePosition.y <= window.getSize().y) {
    mapScrollSpeed += (window.getSize().y - mousePosition.y) * 1.5f;
    panMapDown(mapScrollSpeed, TimePerFrame);
}