Go to the first, previous, next, last section, table of contents.

## Feedback and Control

The interface should provide visible feedback for every successful unit action initiated directly by the player, but it need not do so for failures, unless they are serious. It is better to prevent nonsensical input, for instance by disabling menus and control panel items. Simple interfaces such as for character terminals will have to relax these rules somewhat.

Interfaces should enable/disable display of lighting conditions.

Go to the first, previous, next, last section, table of contents.