Don't create a CharacterController for objects with no animations

apps/openmw/mwmechanics/objects.cpp

@@ -29,7 +29,8 @@ void Objects::addObject(const MWWorld::Ptr& ptr)
     removeObject(ptr);
 
     MWRender::Animation *anim = MWBase::Environment::get().getWorld()->getAnimation(ptr);
-    if(anim) mObjects.insert(std::make_pair(ptr, new CharacterController(ptr, anim)));
+    if (anim && anim->hasAnimSources())
+        mObjects.insert(std::make_pair(ptr, new CharacterController(ptr, anim)));
 }
 
 void Objects::removeObject(const MWWorld::Ptr& ptr)

apps/openmw/mwrender/animation.cpp

@@ -565,6 +565,11 @@ namespace MWRender
         }
     }
 
+    bool Animation::hasAnimSources() const
+    {
+        return !mAnimSources.empty();
+    }
+
     void Animation::clearAnimSources()
     {
         mStates.clear();

apps/openmw/mwrender/animation.hpp

@@ -341,6 +341,8 @@ public:
     Animation(const MWWorld::Ptr &ptr, osg::ref_ptr<osg::Group> parentNode, Resource::ResourceSystem* resourceSystem);
     virtual ~Animation();
 
+    bool hasAnimSources() const;
+
     MWWorld::ConstPtr getPtr() const;
 
     /// Set active flag on the object skeleton, if one exists.