worked on disjkstra and a*

grid/Grid.h

@@ -152,6 +152,11 @@ public:
 		return (hashes.find(uid) != hashes.end());
 	}
 
+	/** get a list of all nodes within the graph */
+	const std::vector<T>& getNodes() const {
+		return nodes;
+	}
+
 	/** get the center-node the given Point belongs to */
 	const T& getNodeFor(const GridPoint& p) {
 		const UID uid = getUID(p);