Fix getDistance not detecting references in inactive cells properly

apps/openmw/mwscript/interpretercontext.cpp

@@ -378,12 +378,20 @@ namespace MWScript
 
     float InterpreterContext::getDistance (const std::string& name, const std::string& id) const
     {
-        const MWWorld::Ptr ref2 = getReference (id, false, false);
+        // NOTE: id may be empty, indicating an implicit reference
+
+        MWWorld::Ptr ref2;
+
+        if (id.empty())
+            ref2 = getReference("", true, true);
+        else
+            ref2 = MWBase::Environment::get().getWorld()->searchPtr(id, true);
+
         // If either actor is in a non-active cell, return a large value (just like vanilla)
         if (ref2.isEmpty())
             return std::numeric_limits<float>().max();
 
-        const MWWorld::Ptr ref = getReference (name, false, false);
+        const MWWorld::Ptr ref = MWBase::Environment::get().getWorld()->searchPtr(name, true);
         if (ref.isEmpty())
             return std::numeric_limits<float>().max();
 

apps/openmw/mwscript/interpretercontext.hpp

@@ -118,6 +118,7 @@ namespace MWScript
             virtual void stopScript (const std::string& name);
 
             virtual float getDistance (const std::string& name, const std::string& id = "") const;
+            ///< @note if \a id is empty, assumes an implicit reference
 
             bool hasBeenActivated (const MWWorld::Ptr& ptr);
             ///< \attention Calling this function for the right reference will mark the action as