Function camera_control_system

pub(crate) fn camera_control_system(
    state: Local<'_, UICameraState>,
    mouse_input: Res<'_, ButtonInput<MouseButton>>,
    camera: Single<'_, (&mut Transform, &mut Projection), With<UICamera>>,
    mouse_motion: Res<'_, AccumulatedMouseMotion>,
    mouse_scroll: Res<'_, AccumulatedMouseScroll>,
)

The system that controls the UI camera.

It handles moving, zooming and other functionality in response to user input.