[Bug Fix] Disallow multiple augments in same item. (#1916)

- Disallows multiple augments via #augmentitem or otherwise.
- Added ItemInstance::ContainsAugmentByID(item_id) helper method for finding an augment in an item instance.

common/emu_constants.h

@@ -381,4 +381,11 @@ enum Invisibility : uint8 {
 	Special = 255
 };
 
+enum AugmentActions : int {
+	Insert,
+	Remove,
+	Swap,
+	Destroy
+};
+
 #endif /*COMMON_EMU_CONSTANTS_H*/

common/item_instance.cpp

@@ -689,6 +689,25 @@ bool EQ::ItemInstance::IsAugmented()
 	return false;
 }
 
+bool EQ::ItemInstance::ContainsAugmentByID(uint32 item_id)
+{
+	if (!m_item || !m_item->IsClassCommon()) {
+		return false;
+	}
+
+	if (!item_id) {
+		return false;
+	}
+	
+	for (uint8 augment_slot = invaug::SOCKET_BEGIN; augment_slot <= invaug::SOCKET_END; ++augment_slot) {
+		if (GetAugmentItemID(augment_slot) == item_id) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
 // Has attack/delay?
 bool EQ::ItemInstance::IsWeapon() const
 {
@@ -1706,4 +1725,4 @@ EvolveInfo::EvolveInfo(uint32 first, uint8 max, bool allkills, uint32 L2, uint32
 
 EvolveInfo::~EvolveInfo() {
 
-}
+}

common/item_instance.h

@@ -132,6 +132,7 @@ namespace EQ
 		void DeleteAugment(uint8 slot);
 		ItemInstance* RemoveAugment(uint8 index);
 		bool IsAugmented();
+		bool ContainsAugmentByID(uint32 item_id);
 		ItemInstance* GetOrnamentationAug(int32 ornamentationAugtype) const;
 		bool UpdateOrnamentationInfo();
 		static bool CanTransform(const ItemData *ItemToTry, const ItemData *Container, bool AllowAll = false);

common/ruletypes.h

@@ -744,6 +744,7 @@ RULE_BOOL(Inventory, EnforceAugmentWear, true, "Forces augment wear slot validat
 RULE_BOOL(Inventory, DeleteTransformationMold, true, "False if you want mold to last forever")
 RULE_BOOL(Inventory, AllowAnyWeaponTransformation, false, "Weapons can use any weapon transformation")
 RULE_BOOL(Inventory, TransformSummonedBags, false, "Transforms summoned bags into disenchanted ones instead of deleting")
+RULE_BOOL(Inventory, AllowMultipleOfSameAugment, false, "Allows multiple of the same augment to be placed in an item via #augmentitem or MQ2, set to true to allow")
 RULE_CATEGORY_END()
 
 RULE_CATEGORY(Client)