Remove some unnecessary per-frame store searches

apps/openmw/mwmechanics/actors.cpp

@@ -838,7 +838,7 @@ namespace MWMechanics
             if (ptr.getClass().isClass(ptr, "Guard") && creatureStats.getAiSequence().getTypeId() != AiPackage::TypeIdPursue && !creatureStats.getAiSequence().isInCombat())
             {
                 const MWWorld::ESMStore& esmStore = MWBase::Environment::get().getWorld()->getStore();
-                int cutoff = esmStore.get<ESM::GameSetting>().find("iCrimeThreshold")->getInt();
+                static const int cutoff = esmStore.get<ESM::GameSetting>().find("iCrimeThreshold")->getInt();
                 // Force dialogue on sight if bounty is greater than the cutoff
                 // In vanilla morrowind, the greeting dialogue is scripted to either arrest the player (< 5000 bounty) or attack (>= 5000 bounty)
                 if (   player.getClass().getNpcStats(player).getBounty() >= cutoff
@@ -846,7 +846,7 @@ namespace MWMechanics
                     && MWBase::Environment::get().getWorld()->getLOS(ptr, player)
                     && MWBase::Environment::get().getMechanicsManager()->awarenessCheck(player, ptr))
                 {
-                    static int iCrimeThresholdMultiplier = esmStore.get<ESM::GameSetting>().find("iCrimeThresholdMultiplier")->getInt();
+                    static const int iCrimeThresholdMultiplier = esmStore.get<ESM::GameSetting>().find("iCrimeThresholdMultiplier")->getInt();
                     if (player.getClass().getNpcStats(player).getBounty() >= cutoff * iCrimeThresholdMultiplier)
                         MWBase::Environment::get().getMechanicsManager()->startCombat(ptr, player);
                     else

apps/openmw/mwmechanics/creaturestats.cpp

@@ -48,8 +48,10 @@ namespace MWMechanics
         const MWWorld::Store<ESM::GameSetting> &gmst =
             MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>();
 
-        return gmst.find ("fFatigueBase")->getFloat()
-            - gmst.find ("fFatigueMult")->getFloat() * (1-normalised);
+        static const float fFatigueBase = gmst.find("fFatigueBase")->getFloat();
+        static const float fFatigueMult = gmst.find("fFatigueMult")->getFloat();
+
+        return fFatigueBase - fFatigueMult * (1-normalised);
     }
 
     const AttributeValue &CreatureStats::getAttribute(int index) const

apps/openmw/mwworld/worldimp.cpp

@@ -1009,7 +1009,8 @@ namespace MWWorld
         if (mActivationDistanceOverride >= 0)
             return static_cast<float>(mActivationDistanceOverride);
 
-        return getStore().get<ESM::GameSetting>().find("iMaxActivateDist")->getFloat() * 5 / 4;
+        static const int iMaxActivateDist = getStore().get<ESM::GameSetting>().find("iMaxActivateDist")->getInt();
+        return iMaxActivateDist * 5.f / 4.f;
     }
 
     MWWorld::Ptr World::getFacedObject()