Fix incorrect calculation of armor rating (Bug #3754)

apps/openmw/mwclass/armor.cpp

@@ -231,8 +231,8 @@ namespace MWClass
                 typeText = "#{sHeavy}";
         }
 
-        text += "\n#{sArmorRating}: " + MWGui::ToolTips::toString(getEffectiveArmorRating(ptr,
+        text += "\n#{sArmorRating}: " + MWGui::ToolTips::toString(static_cast<int>(getEffectiveArmorRating(ptr,
-            MWMechanics::getPlayer()));
+            MWMechanics::getPlayer())));
 
         int remainingHealth = getItemHealth(ptr);
         text += "\n#{sCondition}: " + MWGui::ToolTips::toString(remainingHealth) + "/"
@@ -277,7 +277,7 @@ namespace MWClass
         return record->mId;
     }
 
-    int Armor::getEffectiveArmorRating(const MWWorld::ConstPtr &ptr, const MWWorld::Ptr &actor) const
+    float Armor::getEffectiveArmorRating(const MWWorld::ConstPtr &ptr, const MWWorld::Ptr &actor) const
     {
         const MWWorld::LiveCellRef<ESM::Armor> *ref = ptr.get<ESM::Armor>();
 
@@ -290,7 +290,7 @@ namespace MWClass
         if(ref->mBase->mData.mWeight == 0)
             return ref->mBase->mData.mArmor;
         else
-            return ref->mBase->mData.mArmor * armorSkill / iBaseArmorSkill;
+            return ref->mBase->mData.mArmor * armorSkill / static_cast<float>(iBaseArmorSkill);
     }
 
     std::pair<int, std::string> Armor::canBeEquipped(const MWWorld::ConstPtr &ptr, const MWWorld::Ptr &npc) const

apps/openmw/mwclass/armor.hpp

@@ -84,7 +84,7 @@ namespace MWClass
             virtual bool canSell (const MWWorld::ConstPtr& item, int npcServices) const;
 
             /// Get the effective armor rating, factoring in the actor's skills, for the given armor.
-            virtual int getEffectiveArmorRating(const MWWorld::ConstPtr& armor, const MWWorld::Ptr& actor) const;
+            virtual float getEffectiveArmorRating(const MWWorld::ConstPtr& armor, const MWWorld::Ptr& actor) const;
     };
 }
 

apps/openmw/mwclass/npc.cpp

@@ -1085,14 +1085,14 @@ namespace MWClass
         float fUnarmoredBase2 = store.find("fUnarmoredBase2")->getFloat();
         int unarmoredSkill = stats.getSkill(ESM::Skill::Unarmored).getModified();
 
-        int ratings[MWWorld::InventoryStore::Slots];
+        float ratings[MWWorld::InventoryStore::Slots];
         for(int i = 0;i < MWWorld::InventoryStore::Slots;i++)
         {
             MWWorld::ContainerStoreIterator it = invStore.getSlot(i);
             if (it == invStore.end() || it->getTypeName() != typeid(ESM::Armor).name())
             {
                 // unarmored
-                ratings[i] = static_cast<int>((fUnarmoredBase1 * unarmoredSkill) * (fUnarmoredBase2 * unarmoredSkill));
+                ratings[i] = (fUnarmoredBase1 * unarmoredSkill) * (fUnarmoredBase2 * unarmoredSkill);
             }
             else
             {

apps/openmw/mwworld/class.cpp

@@ -482,7 +482,7 @@ namespace MWWorld
         return -1;
     }
 
-    int Class::getEffectiveArmorRating(const ConstPtr &armor, const Ptr &actor) const
+    float Class::getEffectiveArmorRating(const ConstPtr &armor, const Ptr &actor) const
     {
         throw std::runtime_error("class does not support armor ratings");
     }

apps/openmw/mwworld/class.hpp

@@ -353,7 +353,7 @@ namespace MWWorld
             virtual int getPrimaryFactionRank (const MWWorld::ConstPtr& ptr) const;
 
             /// Get the effective armor rating, factoring in the actor's skills, for the given armor.
-            virtual int getEffectiveArmorRating(const MWWorld::ConstPtr& armor, const MWWorld::Ptr& actor) const;
+            virtual float getEffectiveArmorRating(const MWWorld::ConstPtr& armor, const MWWorld::Ptr& actor) const;
     };
 }
 

apps/openmw/mwworld/inventorystore.cpp

@@ -245,7 +245,7 @@ void MWWorld::InventoryStore::autoEquip (const MWWorld::Ptr& actor)
     static float fUnarmoredBase2 = store.find("fUnarmoredBase2")->getFloat();
     int unarmoredSkill = stats.getSkill(ESM::Skill::Unarmored).getModified();
 
-    float unarmoredRating = static_cast<int>((fUnarmoredBase1 * unarmoredSkill) * (fUnarmoredBase2 * unarmoredSkill));
+    float unarmoredRating = (fUnarmoredBase1 * unarmoredSkill) * (fUnarmoredBase2 * unarmoredSkill);
 
     TSlots slots_;
     initSlots (slots_);