Alan Interactive Fiction Language

Adventure Writing for Everyone

BUG: "undo" as a response to "Quit?" undid the wrong command in some cases.
BUG: verb bodies in outer nested locations did not get executed.
Prohibited locating actors into containers.
BUG: aggregating over things in restricted containers did not consider the class restriction so did not find e.g. attributes defined for that class.
BUG: In loops with an "In <CONTAINER>" filter this did not restrict the class to the classes taken by the container.
BUG: Isa expressions and loop filters did a general lookup for the class name, so would find e.g. default syntax parameters.
BUG: WinArun could try to restore from an empty file reference in some cases.
BUG: If a multiple or omnipotent indicator was used for one syntax which shared a common prefix (starting with the same verb e.g.) would sometimes miss the indicator. Changed this to make an indicator implicitly apply to all syntaxes with the same prefix.
Extensive refactoring of the sources and Makefiles.
Removed support for the Metrowerks (old Mac) compiler.

Bug: UNDO directly after restart would crash.
Bug: scheduled events imminent to run would get lost after undo (typically the ones scheduled After 0)
Bug: checksum calculation to work with pre-alpha5 games

Feature: nested locations, by locating locations in each other you can create nested scopes. You can even do this during run-time, perhaps a tool to create vehicles? Read more in the manual.
Allowed more general expressions in Locate At statement and Isa expressions.
Now generates an IFID as per The Babel Treaty.
Rules are now also run immediately after the game is set-up.
Bug: Fixed a few problems with "open" verbs in the library.
Bug: added inherited reference attributes could sometimes cause a crash.
A pronoun in player input, matching multiple parameters, now gives an error message.
Bug: An empty container clause terminated by a full stop would cause random errors caused by uninitialized data.
Bug: Renaming the WinArun interpreter to a game name would crash on game save.
Bug: Negative integer literals would cause a system error.
Bug: Full lists of multiply nested imported files would print incorrectly.

Fixed a problem with multi-parameter syntaxes which allowed multiple parameters in positions which where not the last.
RESTART did not clear the buffer so continued command could be executed as the first after a restart.
Alpha interpreters will now warn if attempting to run games produced with beta or release compilers.
Made WinArun set window title to game name even if the game was opened from the game open dialog.

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"If I was to write a new text adventure I wouldn't bother with any other authoring system. Alan is just that much easier."

Felix Pleșoianu

Changes in V3.0alpha7