summaryrefslogtreecommitdiff
path: root/rules/tit42tat.pl
diff options
context:
space:
mode:
authorBenjamin Franzke <benjaminfranzke@googlemail.com>2012-11-08 13:17:20 +0100
committerBenjamin Franzke <benjaminfranzke@googlemail.com>2012-11-08 13:17:20 +0100
commit553e4655f2227783051d5ea7fba65d9135310ad4 (patch)
treedf7ddbc67de4cef8c0eda917c76233ddc63d3feb /rules/tit42tat.pl
parentf22d7a9894d530fa2f8ceaeff3a8a52746ad7a1c (diff)
downloadwbs-553e4655f2227783051d5ea7fba65d9135310ad4.tar.gz
wbs-553e4655f2227783051d5ea7fba65d9135310ad4.tar.bz2
wbs-553e4655f2227783051d5ea7fba65d9135310ad4.zip
Prisoners Dilemma: Move rules to subdirectory
Diffstat (limited to 'rules/tit42tat.pl')
-rw-r--r--rules/tit42tat.pl5
1 files changed, 5 insertions, 0 deletions
diff --git a/rules/tit42tat.pl b/rules/tit42tat.pl
new file mode 100644
index 0000000..281bc4d
--- /dev/null
+++ b/rules/tit42tat.pl
@@ -0,0 +1,5 @@
+% Select distraction only if opponents both last decision were to distract.
+% See: http://en.wikipedia.org/wiki/Tit_for_tat#Tit_for_two_tats
+
+tit42tat([d,d|_],d,_,_):-!.
+tit42tat(_,c,_,_).