X-Git-Url: https://ruin.nu/git/?a=blobdiff_plain;f=src%2Fgenesorter.cpp;h=3198543fae391f4805211406a5f8f76ccf28c889;hb=HEAD;hp=1e199843a1a5ecedcbf692fc6da5117dafa4ce8e;hpb=3401199b1ce268dd6465f09abf6264592b989140;p=germs.git

diff --git a/src/genesorter.cpp b/src/genesorter.cpp
index 1e19984..3198543 100644
--- a/src/genesorter.cpp
+++ b/src/genesorter.cpp
@@ -26,16 +26,74 @@
 
 #include "genealgorithms.h"
 
+#include "model.h"
+
+#include <queue>
 using namespace std;
 
-GeneSorter::ActionList GeneSorter::sort(const GeneOrder& go){
-	return ActionList();
+struct ScoreCmp {
+	template<typename T>
+	bool operator()(T s1, T s2){
+		return s1.first < s2.first;
+	}
+};
+
+GeneSorter::ActionList GeneSorter::sort(const GeneOrder& go, const Model& m){
+	ActionList al;
+	GeneOrder temp(go);
+	size_t dist = inversionDistance(temp);
+	while(dist > 0){
+		//cout << "Distance: " << inversionDistance(temp) << " : ";
+		//copy(temp.begin(), temp.end(), ostream_iterator<int>(cout, " "));
+		//cout << endl;
+		ActionList safe = safeActions(temp);
+		if (safe.size() > 0){
+			priority_queue<pair<double,SortAction>,vector<pair<double,SortAction> >, ScoreCmp > pq;
+			for (ActionList::iterator sa = safe.begin(); sa != safe.end(); ++sa){
+				pq.push(pair<double,SortAction>(m.score(*sa,temp),*sa));
+			}
+			SortAction sa = pq.top().second;
+			sa(temp);
+			al.push_back(sa);
+			--dist;
+		}else
+			return ActionList(); //TODO: Need to handle hurdles.
+	}
+	return al;
 }
 
+
 GeneSorter::ActionList GeneSorter::safeActions(const GeneOrder& go){
 	if (countCycles(go) == go.size() - 1)
 		return ActionList();
 	ActionList al;
-	al.push_back(ActionPointer(new ReverseAction(2,3)));
+	vector<Interval> intervals = findIntervals(go);
+	priority_queue<pair<size_t,SortAction>,vector<pair<size_t,SortAction> >, ScoreCmp > pq;
+	for (size_t i = 0; i < intervals.size(); ++i){
+		if (intervals[i].oriented && intervals[i].first != intervals[i].second){
+			SortAction sa(new ReverseAction(intervals[i]));
+			size_t score = scoreAction(go,sa);
+			//cout << "Inversion: " << min(intervals[i].first,intervals[i].second) << ":" << max(intervals[i].first,intervals[i].second)-1 << " Score: " << score <<  endl;
+			pq.push(pair<size_t,SortAction>(score,sa));
+		}				
+	}
+	size_t max = pq.top().first;
+	while (pq.size() > 0 && pq.top().first >= max){
+		al.push_back(pq.top().second);
+		pq.pop();
+	}
 	return al;
 }
+
+size_t GeneSorter::scoreAction(const GeneOrder& go, SortAction& sa){
+	GeneOrder temp(go);
+	sa(temp);
+	vector<Interval> intervals = findIntervals(temp);
+	int o = 0;
+	for (vector<Interval>::iterator in = intervals.begin(); in != intervals.end(); ++in){
+		if (in->oriented)
+			++o;
+	}
+	return o;
+}
+