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Conditional Backdrops

version 1 by John Clemens

An extension to allow rules for determining the presence of backdrops. (Functions only with versions of Inform prior to 5T18; however, from 5T18 Inform is able to do this natively. See the section on Moving Backdrops in the Changes chapter.)

You can do three things here:

1. Download this extension,
2. View its documentation, or
3. View its source code.