Browsing Russian translation

111.

Because fix_rollback changes the functionality of menus and imagemaps, it is advisable to reflect this in the appearance. To do this, it is important to understand how the widget states of the menu buttons are changed. There are two modes that can be selected through the :var:`config.fix_rollback_without_choice` option.

112.

The default option will set the chosen option to "selected", thereby activating the style properties with the "selected\_" prefix. All other buttons will be made insensitive and show using the properties with the "insensitive\_" prefix. Effectively this leaves the menu with a single selectable choice.

113.

When the :var:`config.fix_rollback_without_choice` option is set to False, all buttons are made insensitive. This means that the chosen option will use the "selected_insensitive\_" prefix for the style properties while the other buttons use properties with the "insensitive\_" prefix.

114.

Fixed Rollback and Custom Screens

115.

When writing custom Python routines that must play nice with the fix_rollback system there are a few simple things to know. First of all the :func:`renpy.in_fixed_rollback` function can be used to determine whether the game is currently in fixed rollback state. Second, when in fixed rollback state, :func:`ui.interact` will always return the supplied roll_forward data regardless of what action was performed. This effectively means that when the :func:`ui.interact`/:func:`renpy.checkpoint` functions are used, most of the work is done.

116.

To simplify the creation of custom screens, two actions are provided to help with the most common uses. The :func:`ui.ChoiceReturn` action returns the value when the button it is attached to is clicked. The :func:`ui.ChoiceJump` action can be used to jump to a script label. However, this action only works properly when the screen is called trough a ``call screen`` statement.

117.

Example::

118.

Rollback-blocking and -fixing Functions

119.

Prevents the game from rolling back to before the current statement.

120.

Prevents the user from changing decisions made before the current statement.