Manipulating a 2D Camera - SFML Essentials - page 90

How does SFML implement a camera?
If we want to modify the default camera which comes with each sf::Window instance,
we have to tackle the sf::View class.
The View class behaves exactly like a typical camera—limiting what the player can see in
the world by a set of parameters. This is how we create and use View :
The constructor of the View class takes a single FloatRect parameter, which sets the
desired view area of the world. If we have a bigger view area, its contents are scaled down
to fit in the window, and vice versa. In this example, the area matches the window size, so
it does not change how objects are rendered.
Finally, when we have everything in View configured, we need to tell the window to use it
by calling RenderWindow::setView() . This copies over the view in the Render-
Window object, so we don't need to keep the original view alive, as we do with resources
such as Texture .
Now, let's see what the View class can actually do.