added getEquipmentSlots function to MWWorld::Class hierarchy

apps/openmw/mwworld/class.cpp

@@ -127,6 +127,11 @@ namespace MWWorld
         return Ogre::Vector3 (0, 0, 0);
     }
 
+    std::pair<std::vector<int>, bool> Class::getEquipmentSlots (const Ptr& pt) const
+    {
+        return std::make_pair (std::vector<int>(), false);
+    }
+
     const Class& Class::get (const std::string& key)
     {
         std::map<std::string, boost::shared_ptr<Class> >::const_iterator iter = sClasses.find (key);

apps/openmw/mwworld/class.hpp

@@ -3,6 +3,7 @@
 
 #include <map>
 #include <string>
+#include <vector>
 
 #include <boost/shared_ptr.hpp>
 
@@ -142,6 +143,12 @@ namespace MWWorld
             ///< Return desired movement vector (determined based on movement settings,
             /// stance and stats).
 
+            virtual std::pair<std::vector<int>, bool> getEquipmentSlots (const Ptr& pt) const;
+            ///< \return first: Return IDs of the slot this object can be equipped in; second: can object
+            /// stay stacked when equipped?
+            ///
+            /// Default implementation: return (empty vector, false).
+
             static const Class& get (const std::string& key);
             ///< If there is no class for this \a key, an exception is thrown.