75392e54c7
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@757 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
38 lines
598 B
Plaintext
38 lines
598 B
Plaintext
:- object(shape,
|
|
instantiates(abstract_class),
|
|
specializes(object)).
|
|
|
|
|
|
:- info([
|
|
author is 'Paulo Moura',
|
|
version is 1.0,
|
|
date is 2003/2/3,
|
|
comment is 'Generic geometric shape.']).
|
|
|
|
|
|
:- public(color/1).
|
|
|
|
:- mode(color(?atom), zero_or_one).
|
|
|
|
:- info(color/1, [
|
|
comment is 'Shape color.',
|
|
argnames is ['Color']]).
|
|
|
|
|
|
:- public(position/2).
|
|
|
|
:- mode(position(?integer, ?integer), zero_or_one).
|
|
|
|
:- info(position/2, [
|
|
comment is 'Shape position.',
|
|
argnames is ['X', 'Y']]).
|
|
|
|
|
|
color(red). % default shape color
|
|
|
|
|
|
position(0, 0). % default shape position
|
|
|
|
|
|
:- end_object.
|