Added state::clear()

src/symbolic/state.cpp

@@ -37,3 +37,8 @@ void State::remove_special_predicates()
     PredicateGroup<Symbol>::remove(special_predicates);
 }
 
+void State::clear()
+{
+    PredicateGroup<Symbol>::clear();
+    pddl_object_manager = PDDLObjectManager();
+}
\ No newline at end of file

src/symbolic/state.h

@@ -41,6 +41,8 @@ public:
         PredicateGroup<Symbol>(state_),
         pddl_object_manager(state_.pddl_object_manager)
         { };
+        
+    void clear();
 
     void read_from_file(std::string file_path);