Use default initializers for WorldModel members

apps/openmw/mwworld/worldmodel.cpp

@@ -155,8 +155,6 @@ MWWorld::WorldModel::WorldModel(const MWWorld::ESMStore& store, ESM::ReadersCach
     , mReaders(readers)
     , mIdCache(std::clamp(Settings::Manager::getInt("pointers cache size", "Cells"), 40, 1000),
           { ESM::RefId::sEmpty, nullptr })
-    , mIdCacheIndex(0)
-    , mPtrIndexUpdateCounter(0)
 {
 }
 

apps/openmw/mwworld/worldmodel.hpp

@@ -45,7 +45,10 @@ namespace MWWorld
         mutable std::map<std::string, CellStore, Misc::StringUtils::CiComp> mInteriors;
         mutable std::map<std::pair<int, int>, CellStore> mExteriors;
         IdCache mIdCache;
-        std::size_t mIdCacheIndex;
+        std::size_t mIdCacheIndex = 0;
+        std::unordered_map<ESM::RefNum, Ptr> mPtrIndex;
+        std::size_t mPtrIndexUpdateCounter = 0;
+        ESM::RefNum mLastGeneratedRefnum;
 
         WorldModel(const WorldModel&);
         WorldModel& operator=(const WorldModel&);
@@ -58,10 +61,6 @@ namespace MWWorld
 
         void writeCell(ESM::ESMWriter& writer, CellStore& cell) const;
 
-        std::unordered_map<ESM::RefNum, Ptr> mPtrIndex;
-        size_t mPtrIndexUpdateCounter;
-        ESM::RefNum mLastGeneratedRefnum;
-
     public:
         void clear();