Core/Spell:

* Fix Spells with DmgClass SPELL_DAMAGE_CLASS_NONE
* Fix SPELL_AURA_PERIODIC_HEAL calculation
* Fix Swiftmend heal calculation
* Fix some codestyle

src/server/game/Entities/Unit/Unit.cpp

@@ -11201,7 +11201,7 @@ uint32 Unit::SpellHealingBonusDone(Unit* victim, SpellInfo const* spellProto, ui
         if (Unit* owner = GetOwner())
             return owner->SpellHealingBonusDone(victim, spellProto, healamount, damagetype, stack);
 
-    // no bonus for heal potions/bandages
+    // No bonus healing for potion spells
     if (spellProto->SpellFamilyName == SPELLFAMILY_POTION)
         return healamount;
 
@@ -11293,6 +11293,12 @@ uint32 Unit::SpellHealingBonusDone(Unit* victim, SpellInfo const* spellProto, ui
                     (spellProto->IsRangedWeaponSpell() && spellProto->DmgClass !=SPELL_DAMAGE_CLASS_MELEE) ? RANGED_ATTACK : BASE_ATTACK));
         }
     }
+    else
+    {
+        // No bonus healing for SPELL_DAMAGE_CLASS_NONE class spells by default
+        if (spellProto->DmgClass == SPELL_DAMAGE_CLASS_NONE)
+            return healamount < 0 ? 0 : healamount;
+    }
 
     // Default calculation
     if (DoneAdvertisedBenefit)
@@ -11356,11 +11362,11 @@ uint32 Unit::SpellHealingBonusTaken(Unit* caster, SpellInfo const *spellProto, u
     float TakenTotalMod = 1.0f;
 
     // Healing taken percent
-    float minval = (float)GetMaxNegativeAuraModifier(SPELL_AURA_MOD_HEALING_PCT);
+    float minval = float(GetMaxNegativeAuraModifier(SPELL_AURA_MOD_HEALING_PCT));
     if (minval)
         AddPctF(TakenTotalMod, minval);
 
-    float maxval = (float)GetMaxPositiveAuraModifier(SPELL_AURA_MOD_HEALING_PCT);
+    float maxval = float(GetMaxPositiveAuraModifier(SPELL_AURA_MOD_HEALING_PCT));
     if (maxval)
         AddPctF(TakenTotalMod, maxval);
 
@@ -11386,11 +11392,11 @@ uint32 Unit::SpellHealingBonusTaken(Unit* caster, SpellInfo const *spellProto, u
     if (damagetype == DOT)
     {
         // Healing over time taken percent
-        float minval_hot = (float)GetMaxNegativeAuraModifier(SPELL_AURA_MOD_HOT_PCT);
+        float minval_hot = float(GetMaxNegativeAuraModifier(SPELL_AURA_MOD_HOT_PCT));
         if (minval_hot)
             AddPctF(TakenTotalMod, minval_hot);
 
-        float maxval_hot = (float)GetMaxPositiveAuraModifier(SPELL_AURA_MOD_HOT_PCT);
+        float maxval_hot = float(GetMaxPositiveAuraModifier(SPELL_AURA_MOD_HOT_PCT));
         if (maxval_hot)
             AddPctF(TakenTotalMod, maxval_hot);
     }
@@ -11401,6 +11407,12 @@ uint32 Unit::SpellHealingBonusTaken(Unit* caster, SpellInfo const *spellProto, u
     float factorMod = 1.0f;
     if (bonus)
         coeff = (damagetype == DOT) ? bonus->dot_damage : bonus->direct_damage;
+    else
+    {
+        // No bonus healing for SPELL_DAMAGE_CLASS_NONE class spells by default
+        if (spellProto->DmgClass == SPELL_DAMAGE_CLASS_NONE)
+            return healamount < 0 ? 0 : healamount;
+    }
 
     // Default calculation
     if (TakenAdvertisedBenefit)

src/server/game/Spells/Auras/SpellAuraEffects.cpp

@@ -6457,7 +6457,7 @@ void AuraEffect::HandlePeriodicHealAurasTick(Unit* target, Unit* caster) const
             damage += addition;
         }
 
-        damage = caster->SpellDamageBonusDone(target, GetSpellInfo(), damage, DOT, GetBase()->GetStackAmount());
+        damage = caster->SpellHealingBonusDone(target, GetSpellInfo(), damage, DOT, GetBase()->GetStackAmount());
         damage = target->SpellHealingBonusTaken(caster, GetSpellInfo(), damage, DOT, GetBase()->GetStackAmount());
     }
 

src/server/game/Spells/SpellEffects.cpp

@@ -1560,10 +1560,7 @@ void Spell::EffectHeal(SpellEffIndex /*effIndex*/)
 
             int32 tickheal = targetAura->GetAmount();
             if (Unit* auraCaster = targetAura->GetCaster())
-            {
                 tickheal = auraCaster->SpellHealingBonusDone(unitTarget, targetAura->GetSpellInfo(), tickheal, DOT);
-                tickheal = unitTarget->SpellHealingBonusTaken(auraCaster, targetAura->GetSpellInfo(), tickheal, DOT);
-            }
             //int32 tickheal = targetAura->GetSpellInfo()->EffectBasePoints[idx] + 1;
             //It is said that talent bonus should not be included