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yap-6.3/Logtalk/examples/bricks/NOTES
pmoura 20dcf89f9a Logtalk 2.21.5 files.
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2004-11-03 00:13:01 +00:00

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=================================================================
Logtalk - Object oriented extension to Prolog
Release 2.21.5
Copyright (c) 1998-2004 Paulo Moura. All Rights Reserved.
=================================================================
To load all entities in this example compile and load the loader file:
| ?- logtalk_load(loader).
You will need to load the objects in the roots and relations examples.
You will also need to load the following files in the library directory:
events_loader, types_loader, metapredicates_loader, and hierarchies_loader.
Alternatively, you may load the library all_loader file to load all library
entities.
This folder contains an example of representation and handling of
relations using events. We have instances of class brick and a binary
brick_stack relation between the bricks. Every time we move a brick, we
want the bricks on top of it to move along. If we break the stack by
moving a middle brick, we want to automatically destroy the
corresponding relation tuple.
It's instructive to use the event debugger in the Logtalk library (loader
file debugging_loader.lgt) to better understand this example. Set spy points
in all brick instances and then activate the debugger.