129 lines
2.0 KiB
Plaintext
129 lines
2.0 KiB
Plaintext
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:- object(teachers).
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:- info([
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version is 1.0,
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date is 2005/5/8,
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author is 'Example by LPA; adapted to Logtalk by Paulo Moura.',
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comment is 'General attributes & methods for all teachers.']).
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:- public(print/0).
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:- info(print/0, [
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comment is 'Print teachers timetable.']).
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print :-
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nl, write('TEACHER TIMETABLE ...'), nl, nl,
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forall(extends_object(Teacher, teacher), Teacher::print),
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nl.
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:- end_object.
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:- object(teacher).
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:- info([
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version is 1.0,
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date is 2005/5/8,
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author is 'Example by LPA; adapted to Logtalk by Paulo Moura.',
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comment is 'General attributes & methods for all teachers.']).
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:- public(teach_period/1).
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:- info(teach_period/1, [
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comment is 'A period for which the teacher can be assigned.']).
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:- public(teach_subject/1).
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:- info(teach_subject/1, [
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comment is 'A subject which the teacher can teach.']).
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:- public(print/0).
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:- info(print/0, [
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comment is 'Print complete timetable from the teacher viewpoint.']).
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:- public(freetime/1).
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:- info(freetime/1, [
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comment is '.',
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argnames is ['Freetime']]).
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:- public(subject/1).
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:- info(subject/1, [
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comment is '.',
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argnames is ['Subject']]).
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teach_period(Period) :-
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\+ ::freetime(Period).
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teach_subject(Subject) :-
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::subject(Subject).
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print :-
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self(Self),
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write('TEACHER: '), write(Self), nl,
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forall(extends_object(Period, period), Period::print_teacher(Self)),
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nl.
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:- end_object.
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:- object(nicky,
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extends(teacher)).
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subject(french).
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subject(biology).
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freetime(1).
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freetime(4).
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:- end_object.
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:- object(brian,
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extends(teacher)).
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subject(maths).
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subject(music).
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:- end_object.
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:- object(dave,
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extends(teacher)).
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subject(maths).
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:- end_object.
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:- object(clive,
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extends(teacher)).
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subject(french).
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subject(prolog).
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freetime(2).
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freetime(3).
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freetime(5).
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:- end_object.
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:- object(diane,
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extends(teacher)).
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subject(accountancy).
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freetime(2).
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freetime(4).
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:- end_object.
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:- object(phil,
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extends(teacher)).
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subject(maths).
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subject('prolog++').
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freetime(3).
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:- end_object.
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