Move some levelup logic from mwgui to mwmechanics

apps/openmw/mwgui/levelupdialog.cpp

@@ -173,12 +173,7 @@ namespace MWGui
                     attribute.setBase(100);
             }
 
-            // "When you gain a level, in addition to increasing three primary attributes, your Health
-            // will automatically increase by 10% of your Endurance attribute. If you increased Endurance this level,
-            // the Health increase is calculated from the increased Endurance"
-            creatureStats.increaseLevelHealthBonus (creatureStats.getAttribute(ESM::Attribute::Endurance).getBase() * 0.1f);
-
-            creatureStats.setLevel (creatureStats.getLevel()+1);
+            creatureStats.levelUp();
             pcStats.levelUp ();
 
             MWBase::Environment::get().getWindowManager()->removeGuiMode (GM_Levelup);

apps/openmw/mwmechanics/creaturestats.cpp

@@ -18,14 +18,24 @@ namespace MWMechanics
             mAiSettings[i] = 0;
     }
 
-    void CreatureStats::increaseLevelHealthBonus (float value)
+    float CreatureStats::getLevelHealthBonus () const
     {
-        mLevelHealthBonus += value;
+        return mLevelHealthBonus;
     }
 
-    float CreatureStats::getLevelHealthBonus () const
+    void CreatureStats::levelUp()
     {
-        return mLevelHealthBonus;
+        const MWWorld::Store<ESM::GameSetting> &gmst =
+            MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>();
+
+        const int endurance = getAttribute(ESM::Attribute::Endurance).getBase();
+
+        // "When you gain a level, in addition to increasing three primary attributes, your Health
+        // will automatically increase by 10% of your Endurance attribute. If you increased Endurance this level,
+        // the Health increase is calculated from the increased Endurance"
+        mLevelHealthBonus += endurance * gmst.find("fLevelUpHealthEndMult")->getFloat();
+
+        mLevel++;
     }
 
     const AiSequence& CreatureStats::getAiSequence() const

apps/openmw/mwmechanics/creaturestats.hpp

@@ -95,10 +95,10 @@ namespace MWMechanics
         float getFatigueTerm() const;
         ///< Return effective fatigue
 
-        // small hack to allow the fact that Health permanently increases by 10% of endurance on each level up
-        void increaseLevelHealthBonus(float value);
         float getLevelHealthBonus() const;
 
+        void levelUp();
+
         bool isDead() const;
 
         bool hasDied() const;