give access to reverse action members, and calculate symmetric score according to...

[germs.git] / src / models.cpp

diff --git a/src/models.cpp b/src/models.cpp
index 9c13090647ca294bebf752405e6f10a245a83b0c..9e6c2c36e9750245738d3604ff3e0aaf2a5e5196 100644 (file)
--- a/src/models.cpp
+++ b/src/models.cpp
@@ -38,7 +38,15 @@ const char* ModelImpl::name(){
 
 
 double X::score(const SortAction& sa, const GeneOrder& go){
-       return 1;
+       const ReverseAction* ra = dynamic_cast<const ReverseAction*>(&sa.impl());
+
+       if (ra){
+               int l1 = go.size()/2 - ra->i();
+               int l2 = ra->j() - go.size()/2;
+               double C = abs(l1 - l2)/static_cast<double>(go.size());
+               return 1/(C+1);
+       }
+       return -1;
 }
 const char* X::name(){
        return "X";