Stop idle animations for non-biped creatures when attacking/moving

The idle animation wouldn't be visible anyway, since these creatures don't have animation layers. However sounds tagged in the animation would still play.

apps/openmw/mwclass/npc.cpp

@@ -1384,4 +1384,9 @@ namespace MWClass
         MWWorld::LiveCellRef<ESM::NPC> *ref = ptr.get<ESM::NPC>();
         return ref->mBase->mAiData.mFight;
     }
+
+    bool Npc::isBipedal(const MWWorld::Ptr &ptr) const
+    {
+        return true;
+    }
 }

apps/openmw/mwclass/npc.hpp

@@ -182,6 +182,8 @@ namespace MWClass
                 return true;
             }
 
+            virtual bool isBipedal (const MWWorld::Ptr &ptr) const;
+
             virtual void respawn (const MWWorld::Ptr& ptr) const;
 
             virtual void restock (const MWWorld::Ptr& ptr) const;

apps/openmw/mwmechanics/character.cpp

@@ -1586,7 +1586,14 @@ void CharacterController::update(float duration)
             clearAnimQueue();
 
         if(mAnimQueue.empty())
+        {
             idlestate = (inwater ? CharState_IdleSwim : (sneak ? CharState_IdleSneak : CharState_Idle));
+            if ((mUpperBodyState != UpperCharState_Nothing
+                    || mMovementState != CharState_None
+                    || mHitState != CharState_None)
+                    && !mPtr.getClass().isBipedal(mPtr))
+                idlestate = CharState_None;
+        }
         else if(mAnimQueue.size() > 1)
         {
             if(mAnimation->isPlaying(mAnimQueue.front().first) == false)