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authorBenjamin Franzke <benjaminfranzke@googlemail.com>2012-11-12 10:37:23 +0100
committerBenjamin Franzke <benjaminfranzke@googlemail.com>2012-11-12 10:37:23 +0100
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Prisoners Dilemma: Add parameter description to modules
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% Select distraction only if opponents both last decision were to distract.
% See: http://en.wikipedia.org/wiki/Tit_for_tat#Tit_for_two_tats
+% Syntax: tit42tat(+history, -choice, +state_in, -state_out)
+
tit42tat([d,d|_],d,_,_):-!.
tit42tat(_,c,_,_).