75b2645e3f
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1580 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
162 lines
2.4 KiB
Plaintext
162 lines
2.4 KiB
Plaintext
=================================================================
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Logtalk - Object oriented extension to Prolog
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Release 2.27.1
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Copyright (c) 1998-2006 Paulo Moura. All Rights Reserved.
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=================================================================
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% start by loading the necessary library and support example files (if not
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% already loaded):
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| ?- logtalk_load([library(events_loader), library(types_loader), library(metapredicates_loader), library(hierarchies_loader)]).
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...
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| ?- logtalk_load(roots(loader)).
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...
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| ?- logtalk_load(relations(loader)).
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...
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% now you are ready for loading the example:
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| ?- logtalk_load(polygons(loader)).
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...
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% first create four polygons and move each one to a different position
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| ?- triangle::new(t, [position-(4, 5)]).
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yes
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| ?- square::new(s, [position-(3, 2)]).
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yes
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| ?- pentagon::new(p, [position-(7, 1)]).
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yes
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| ?- hexagon::new(h, [position-(2, 4)]).
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yes
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% create two tuples of relation concentric
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| ?- concentric::add_tuple([t, s]).
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yes
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| ?- concentric::add_tuple([p, h]).
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yes
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% check results
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| ?- concentric::tuple(Tuple), write(Tuple), nl, fail.
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[t,s]
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[p,h]
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no
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| ?- t::position(Xt, Yt), s::position(Xs, Ys), p::position(Xp, Yp), h::position(Xh, Yh).
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Xh = 7,
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Yh = 1,
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Xp = 7,
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Xs = 4,
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Xt = 4,
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Yp = 1,
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Ys = 5,
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Yt = 5
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yes
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| ?- after_event_registry::monitors(Ma).
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Ma = [concentric]
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yes
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% move triangle to a new position
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| ?- t::move(3, 3).
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yes
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% move the hexagon to a new position
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| ?- h::move(8, 4).
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yes
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% check results
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| ?- concentric::tuple(Tuple), write(Tuple), nl, fail.
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[t,s]
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[p,h]
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no
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| ?- t::position(Xt, Yt), s::position(Xs, Ys), p::position(Xp, Yp), h::position(Xh, Yh).
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Xh = 8,
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Yh = 4,
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Xp = 8,
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Xs = 3,
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Xt = 3,
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Yp = 4,
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Ys = 3,
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Yt = 3
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yes
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| ?- after_event_registry::monitors(Ma).
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Ma = [concentric]
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yes
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% create another tuple of relation concentric
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| ?- concentric::add_tuple([t, p]).
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yes
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% move the pentagon to a new position
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| ?- p::move(2, 7).
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yes
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% check results
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| ?- concentric::tuple(Tuple), write(Tuple), nl, fail.
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[t,s]
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[p,h]
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[t,p]
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no
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| ?- t::position(Xt, Yt), s::position(Xs, Ys), p::position(Xp, Yp), h::position(Xh, Yh).
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Xh = 2,
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Yh = 7,
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Xp = 2,
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Xs = 2,
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Xt = 2,
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Yp = 7,
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Ys = 7,
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Yt = 7
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yes
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| ?- after_event_registry::monitors(Monitors).
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Monitors = [concentric]
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yes
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% clean up instances, tuples and monitors
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| ?- concentric::remove_all_tuples.
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yes
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| ?- triangle::delete(t).
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yes
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| ?- square::delete(s).
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yes
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| ?- pentagon::delete(p).
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yes
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| ?- hexagon::delete(h).
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yes
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