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Inform is an authoring system for creating works of Interactive Fiction.

Overview Edit

Inform is a design system and programming language, and while they share the same name, Inform 6 and Inform 7 have different approaches to syntax and design principles. The main relation is that Inform 7 uses Inform 6 to compile into glulx or z-code, by mapping syntax onto Inform 6 structures behind the scenes.

Inform 6 Edit

Inform 6 (I6) was released in 1996 as a complete recoding of the Inform Compiler, and has grown to be a stable product over the years. It's a classic programming language, much in the same way TADS is, with a clear C-like syntax. Unlike TADS, I6 compiles for the Z-machine, which was the engine used to run Infocom's classic IF titles. This means that I6 games can be run on a very wide variety of platforms thanks to third-party interpreters. Later versions can also compile to Glulx, which is another engine developed to address the shortcomings of the Z-machine.

Inform 7 Edit

The beta release of Inform 7 was announced on April 30, 2006, and presented as a radical new approach to writing Interactive Fiction. It uses declarative language, that can for the most part be read as english, to manipulate a world model built upon relational algebra. It has a custom-built IDE, flavors of which is available for MicroSoft Windows, Mac OS X and Linux.

Developing Edit

AIF Libraries Edit

Several attempts have been made at writing libraries (or extensions, in Inform parlance) for supporting AIF concepts in Inform 7. Two of these are being actively developed and maintained today:

Documentation Edit

Inform 7 have extensive documentation available in the IDE; here are some other good sources of documentation.

See Also Edit

  • ADRIFT: Another popular authoring system for (A)IF.
  • TADS: Another popular authoring system for (A)IF.
  • Twine: Another popular authoring system for (A)IF.