Use fWortChanceValue for making ingredient/potion effects visible

apps/openmw/mwclass/ingredient.cpp

@@ -156,6 +156,9 @@ namespace MWClass
         MWMechanics::NpcStats& npcStats = MWWorld::Class::get(player).getNpcStats (player);
         int alchemySkill = npcStats.getSkill (ESM::Skill::Alchemy).getBase();
 
+        static const float fWortChanceValue =
+                MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find("fWortChanceValue")->getFloat();
+
         MWGui::Widgets::SpellEffectList list;
         for (int i=0; i<4; ++i)
         {
@@ -166,10 +169,10 @@ namespace MWClass
             params.mAttribute = ref->mBase->mData.mAttributes[i];
             params.mSkill = ref->mBase->mData.mSkills[i];
 
-            params.mKnown = ( (i == 0 && alchemySkill >= 15)
-                 || (i == 1 && alchemySkill >= 30)
-                 || (i == 2 && alchemySkill >= 45)
-                 || (i == 3 && alchemySkill >= 60));
+            params.mKnown = ( (i == 0 && alchemySkill >= fWortChanceValue)
+                 || (i == 1 && alchemySkill >= fWortChanceValue*2)
+                 || (i == 2 && alchemySkill >= fWortChanceValue*3)
+                 || (i == 3 && alchemySkill >= fWortChanceValue*4));
 
             list.push_back(params);
         }

apps/openmw/mwclass/potion.cpp

@@ -137,13 +137,14 @@ namespace MWClass
         MWMechanics::NpcStats& npcStats = MWWorld::Class::get(player).getNpcStats (player);
         int alchemySkill = npcStats.getSkill (ESM::Skill::Alchemy).getBase();
         int i=0;
+        static const float fWortChanceValue =
+                MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find("fWortChanceValue")->getFloat();
         for (MWGui::Widgets::SpellEffectList::iterator it = info.effects.begin(); it != info.effects.end(); ++it)
         {
-            /// \todo this code is duplicated from mwclass/ingredient, put it in a helper function
-            it->mKnown = ( (i == 0 && alchemySkill >= 15)
-                 || (i == 1 && alchemySkill >= 30)
-                 || (i == 2 && alchemySkill >= 45)
-                 || (i == 3 && alchemySkill >= 60));
+            it->mKnown = ( (i == 0 && alchemySkill >= fWortChanceValue)
+                 || (i == 1 && alchemySkill >= fWortChanceValue*2)
+                 || (i == 2 && alchemySkill >= fWortChanceValue*3)
+                 || (i == 3 && alchemySkill >= fWortChanceValue*4));
 
             ++i;
         }