Add pd_client that works with SWI-Prolog

Since SWI-Prolog provides a different socket interface.

1 files changed, 28 insertions, 0 deletions

diff --git a/pd_client_swipl.pl b/pd_client_swipl.pl
new file mode 100644
index 0000000..1739be7
--- /dev/null
+++ b/pd_client_swipl.pl
@@ -0,0 +1,28 @@
+start(Module):-start(Module, localhost).
+start(Module, Host):-start(Module, Host, 8068).
+
+start(Module, Host, Port):-
+	tcp_socket(Socket),
+	tcp_connect(Socket, Host:Port, StreamIn, StreamOut),
+	launch(Module, StreamIn, StreamOut),
+	tcp_close_socket(Socket).
+
+launch(Module, StreamIn, StreamOut) :-
+	atom_concat('rules/', Module, Path), consult(Path),
+	do(StreamIn, StreamOut, Module, [], []).
+
+do(_,  _, _, _, [e|_]) :- !.
+do(StreamIn, StreamOut, Module, ModuleState, Hist) :-
+	call(Module, Hist, ModuleDecision, ModuleState, NewModuleState),
+	write(StreamOut, ModuleDecision), flush_output(StreamOut),
+	format('Own choose:\t~w\n', [ModuleDecision]),
+	loop(StreamIn, StreamOut, Module, NewModuleState, Hist).
+
+loop(StreamIn, StreamOut, Module, ModuleState, Hist) :-
+	get_code(StreamIn, ChoiceCode), byte_to_atom(ChoiceCode, Choice),
+	format('Opponent chose:\t~w\n', [Choice]),
+	do(StreamIn, StreamOut, Module, ModuleState, [Choice|Hist]).
+
+% -1 = EOF
+byte_to_atom(-1, e):-!.
+byte_to_atom(Byte, Atom):-atom_codes(Atom, [Byte]).