Core/Spell: added some helpers to SpellInfo to reduce code duplication

Source/Game/Entities/StatSystem.cs

@@ -1479,14 +1479,7 @@ namespace Game.Entities
 
             expertise += GetTotalAuraModifier(AuraType.ModExpertise, aurEff =>
             {
-                // item neutral spell
-                if ((int)aurEff.GetSpellInfo().EquippedItemClass == -1)
-                    return true;
-                // item dependent spell
-                else if (weapon != null && weapon.IsFitToSpellRequirements(aurEff.GetSpellInfo()))
-                    return true;
-
-                return false;
+                return aurEff.GetSpellInfo().IsItemFitToSpellRequirements(weapon);
             });
 
             if (expertise < 0)

Source/Game/Spells/Spell.cs

@@ -55,25 +55,7 @@ namespace Game.Spells
             m_needComboPoints = m_spellInfo.NeedsComboPoints();
 
             // Get data for type of attack
-            switch (m_spellInfo.DmgClass)
-            {
-                case SpellDmgClass.Melee:
-                    if (m_spellInfo.HasAttribute(SpellAttr3.ReqOffhand))
-                        m_attackType = WeaponAttackType.OffAttack;
-                    else
-                        m_attackType = WeaponAttackType.BaseAttack;
-                    break;
-                case SpellDmgClass.Ranged:
-                    m_attackType = m_spellInfo.IsRangedWeaponSpell() ? WeaponAttackType.RangedAttack : WeaponAttackType.BaseAttack;
-                    break;
-                default:
-                    // Wands
-                    if (m_spellInfo.HasAttribute(SpellAttr2.AutorepeatFlag))
-                        m_attackType = WeaponAttackType.RangedAttack;
-                    else
-                        m_attackType = WeaponAttackType.BaseAttack;
-                    break;
-            }
+            m_attackType = info.GetAttackType();
 
             m_spellSchoolMask = m_spellInfo.GetSchoolMask();           // Can be override for some spell (wand shoot for example)
 
@@ -6252,32 +6234,35 @@ namespace Game.Spells
             // check weapon presence in slots for main/offhand weapons
             if (!Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreEquippedItemRequirement) && m_spellInfo.EquippedItemClass >= 0)
             {
-                // main hand weapon required
-                if (m_spellInfo.HasAttribute(SpellAttr3.MainHand))
+                var weaponCheck = new Func<WeaponAttackType, SpellCastResult>(attackType =>
                 {
-                    Item item = m_caster.ToPlayer().GetWeaponForAttack(WeaponAttackType.BaseAttack);
+                    Item item = m_caster.ToPlayer().GetWeaponForAttack(attackType);
 
                     // skip spell if no weapon in slot or broken
-                    if (item == null || item.IsBroken())
+                    if (!item || item.IsBroken())
                         return SpellCastResult.EquippedItemClass;
 
                     // skip spell if weapon not fit to triggered spell
                     if (!item.IsFitToSpellRequirements(m_spellInfo))
                         return SpellCastResult.EquippedItemClass;
+
+                    return SpellCastResult.SpellCastOk;
+                });
+
+                // main hand weapon required
+                if (m_spellInfo.HasAttribute(SpellAttr3.MainHand))
+                {
+                    SpellCastResult mainHandResult = weaponCheck(WeaponAttackType.BaseAttack);
+                    if (mainHandResult != SpellCastResult.SpellCastOk)
+                        return mainHandResult;
                 }
 
                 // offhand hand weapon required
                 if (m_spellInfo.HasAttribute(SpellAttr3.ReqOffhand))
                 {
-                    Item item = m_caster.ToPlayer().GetWeaponForAttack(WeaponAttackType.OffAttack);
-
-                    // skip spell if no weapon in slot or broken
-                    if (item == null || item.IsBroken())
-                        return SpellCastResult.EquippedItemClass;
-
-                    // skip spell if weapon not fit to triggered spell
-                    if (!item.IsFitToSpellRequirements(m_spellInfo))
-                        return SpellCastResult.EquippedItemClass;
+                    SpellCastResult offHandResult = weaponCheck(WeaponAttackType.OffAttack);
+                    if (offHandResult != SpellCastResult.SpellCastOk)
+                        return offHandResult;
                 }
             }
 

Source/Game/Spells/SpellInfo.cs

@@ -634,6 +634,45 @@ namespace Game.Spells
             return !(HasAttribute(SpellAttr1.NoThreat) || HasAttribute(SpellAttr3.NoInitialAggro));
         }
 
+        public WeaponAttackType GetAttackType()
+        {
+            WeaponAttackType result;
+            switch (DmgClass)
+            {
+                case SpellDmgClass.Melee:
+                    if (HasAttribute(SpellAttr3.ReqOffhand))
+                        result = WeaponAttackType.OffAttack;
+                    else
+                        result = WeaponAttackType.BaseAttack;
+                    break;
+                case SpellDmgClass.Ranged:
+                    result = IsRangedWeaponSpell() ? WeaponAttackType.RangedAttack : WeaponAttackType.BaseAttack;
+                    break;
+                default:
+                    // Wands
+                    if (IsAutoRepeatRangedSpell())
+                        result = WeaponAttackType.RangedAttack;
+                    else
+                        result = WeaponAttackType.BaseAttack;
+                    break;
+            }
+
+            return result;
+        }
+
+        public bool IsItemFitToSpellRequirements(Item item)
+        {
+            // item neutral spell
+            if (EquippedItemClass == ItemClass.None)
+                return true;
+
+            // item dependent spell
+            if (item && item.IsFitToSpellRequirements(this))
+                return true;
+
+            return false;
+        }
+
         public bool IsAffected(SpellFamilyNames familyName, FlagArray128 familyFlags)
         {
             if (familyName == 0)