fix(Core/Loot): properly save and load from DB loot from items (#6151)

- Closes #5472
- Closes https://github.com/chromiecraft/chromiecraft/issues/456

data/sql/updates/pending_db_characters/rev_1622403654219554600.sql

@@ -0,0 +1,9 @@
+INSERT INTO `version_db_characters` (`sql_rev`) VALUES ('1622403654219554600');
+
+ALTER TABLE `item_loot_storage`
+ADD COLUMN `follow_loot_rules` TINYINT UNSIGNED NOT NULL AFTER `randomSuffix`,
+ADD COLUMN `freeforall` TINYINT UNSIGNED NOT NULL AFTER `follow_loot_rules`,
+ADD COLUMN `is_blocked` TINYINT UNSIGNED NOT NULL AFTER `freeforall`,
+ADD COLUMN `is_counted` TINYINT UNSIGNED NOT NULL AFTER `is_blocked`,
+ADD COLUMN `is_underthreshold` TINYINT UNSIGNED NOT NULL AFTER `is_counted`,
+ADD COLUMN `needs_quest` TINYINT UNSIGNED NOT NULL AFTER `is_underthreshold`; 

src/server/database/Database/Implementation/CharacterDatabase.cpp

@@ -509,9 +509,9 @@ void CharacterDatabaseConnection::DoPrepareStatements()
     PrepareStatement(CHAR_DEL_CHAR_ACTION_EXCEPT_SPEC, "DELETE FROM character_action WHERE spec<>? AND guid = ?", CONNECTION_ASYNC);
 
     // Items that hold loot or money
-    PrepareStatement(CHAR_SEL_ITEMCONTAINER_ITEMS, "SELECT containerGUID, itemid, count, randomPropertyId, randomSuffix FROM item_loot_storage", CONNECTION_SYNCH);
+    PrepareStatement(CHAR_SEL_ITEMCONTAINER_ITEMS, "SELECT containerGUID, itemid, count, randomPropertyId, randomSuffix, follow_loot_rules, freeforall, is_blocked, is_counted, is_underthreshold, needs_quest FROM item_loot_storage", CONNECTION_SYNCH);
     PrepareStatement(CHAR_DEL_ITEMCONTAINER_SINGLE_ITEM, "DELETE FROM item_loot_storage WHERE containerGUID = ? AND itemid = ? AND count = ? LIMIT 1", CONNECTION_ASYNC);
-    PrepareStatement(CHAR_INS_ITEMCONTAINER_SINGLE_ITEM, "INSERT INTO item_loot_storage (containerGUID, itemid, count, randomPropertyId, randomSuffix) VALUES (?, ?, ?, ?, ?)", CONNECTION_ASYNC);
+    PrepareStatement(CHAR_INS_ITEMCONTAINER_SINGLE_ITEM, "INSERT INTO item_loot_storage (containerGUID, itemid, count, randomPropertyId, randomSuffix, follow_loot_rules, freeforall, is_blocked, is_counted, is_underthreshold, needs_quest) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)", CONNECTION_ASYNC);
     PrepareStatement(CHAR_DEL_ITEMCONTAINER_CONTAINER, "DELETE FROM item_loot_storage WHERE containerGUID = ?", CONNECTION_ASYNC);
 
     // Calendar

src/server/game/Entities/Player/Player.cpp

@@ -9379,7 +9379,7 @@ void Player::SendLoot(ObjectGuid guid, LootType loot_type)
         // Xinef: Store container id
         loot->containerGUID = item->GetGUID();
 
-        if (!item->m_lootGenerated && !sLootItemStorage->LoadStoredLoot(item))
+        if (!item->m_lootGenerated && !sLootItemStorage->LoadStoredLoot(item, this))
         {
             item->m_lootGenerated = true;
             loot->clear();

src/server/game/Loot/LootItemStorage.cpp

@@ -41,7 +41,8 @@ void LootItemStorage::LoadStorageFromDB()
         Field* fields = result->Fetch();
 
         StoredLootItemList& itemList = lootItemStore[ObjectGuid::Create<HighGuid::Item>(fields[0].GetUInt32())];
-        itemList.push_back(StoredLootItem(fields[1].GetUInt32(), fields[2].GetUInt32(), fields[3].GetInt32(), fields[4].GetUInt32()));
+        itemList.push_back(StoredLootItem(fields[1].GetUInt32(), fields[2].GetUInt32(), fields[3].GetInt32(), fields[4].GetUInt32(), fields[5].GetBool(),
+            fields[6].GetBool(), fields[7].GetBool(), fields[8].GetBool(), fields[9].GetBool(), fields[10].GetBool()));
 
         ++count;
     } while (result->NextRow());
@@ -79,14 +80,21 @@ void LootItemStorage::AddNewStoredLoot(Loot* loot, Player* /*player*/)
     // Gold at first
     if (loot->gold)
     {
-        itemList.push_back(StoredLootItem(0, loot->gold, 0, 0));
+        itemList.push_back(StoredLootItem(0, loot->gold, 0, 0, false, false, false, false, false, false));
 
+        uint8 index = 0;
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_ITEMCONTAINER_SINGLE_ITEM);
-        stmt->setUInt32(0, loot->containerGUID.GetCounter());
-        stmt->setUInt32(1, 0);
-        stmt->setUInt32(2, loot->gold);
-        stmt->setInt32(3, 0);
-        stmt->setUInt32(4, 0);
+        stmt->setUInt32(index++, loot->containerGUID.GetCounter());
+        stmt->setUInt32(index++, 0);
+        stmt->setUInt32(index++, loot->gold);
+        stmt->setInt32(index++, 0);
+        stmt->setUInt32(index++, 0);
+        stmt->setBool(index++, false);
+        stmt->setBool(index++, false);
+        stmt->setBool(index++, false);
+        stmt->setBool(index++, false);
+        stmt->setBool(index++, false);
+        stmt->setBool(index++, false);
         trans->Append(stmt);
     }
 
@@ -104,22 +112,36 @@ void LootItemStorage::AddNewStoredLoot(Loot* loot, Player* /*player*/)
             if (!itemTemplate || itemTemplate->IsCurrencyToken())
                 continue;
 
-            itemList.push_back(StoredLootItem(li->itemid, li->count, li->randomPropertyId, li->randomSuffix));
+            itemList.push_back(StoredLootItem(li->itemid, li->count, li->randomPropertyId, li->randomSuffix, li->follow_loot_rules, li->freeforall, li->is_blocked, li->is_counted,
+                li->is_underthreshold, li->needs_quest));
 
+            uint8 index = 0;
             stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_ITEMCONTAINER_SINGLE_ITEM);
-            stmt->setUInt32(0, loot->containerGUID.GetCounter());
-            stmt->setUInt32(1, li->itemid);
-            stmt->setUInt32(2, li->count);
-            stmt->setInt32 (3, li->randomPropertyId);
-            stmt->setUInt32(4, li->randomSuffix);
+            stmt->setUInt32(index++, loot->containerGUID.GetCounter());
+            stmt->setUInt32(index++, li->itemid);
+            stmt->setUInt32(index++, li->count);
+            stmt->setInt32 (index++, li->randomPropertyId);
+            stmt->setUInt32(index++, li->randomSuffix);
+            stmt->setBool(index++, li->follow_loot_rules);
+            stmt->setBool(index++, li->freeforall);
+            stmt->setBool(index++, li->is_blocked);
+            stmt->setBool(index++, li->is_counted);
+            stmt->setBool(index++, li->is_underthreshold);
+            stmt->setBool(index++, li->needs_quest);
             trans->Append(stmt);
         }
 
     CharacterDatabase.CommitTransaction(trans);
 }
 
-bool LootItemStorage::LoadStoredLoot(Item* item)
+bool LootItemStorage::LoadStoredLoot(Item* item, Player* player)
 {
+    ItemTemplate const* proto = sObjectMgr->GetItemTemplate(item->GetEntry());
+    if (!proto)
+    {
+        return false;
+    }
+
     Loot* loot = &item->loot;
     LootItemContainer::iterator itr = lootItemStore.find(loot->containerGUID);
     if (itr == lootItemStore.end())
@@ -134,22 +156,47 @@ bool LootItemStorage::LoadStoredLoot(Item* item)
             continue;
         }
 
-        LootItem li;
-        li.itemid = it2->itemid;
-        li.count = it2->count;
-        li.follow_loot_rules = false;
-        li.freeforall = false;
-        li.is_blocked = false;
-        li.is_counted = false;
-        li.is_underthreshold = false;
-        li.is_looted = false;
-        li.needs_quest = false;
-        li.randomPropertyId = it2->randomPropertyId;
-        li.randomSuffix = it2->randomSuffix;
-        li.rollWinnerGUID = ObjectGuid::Empty;
+        if (LootTemplate const* lt = LootTemplates_Item.GetLootFor(item->GetEntry()))
+        {
+            LootItem li;
+            li.itemid = it2->itemid;
+            li.count = it2->count;
+            li.follow_loot_rules = it2->follow_loot_rules;
+            li.freeforall = it2->freeforall;
+            li.is_blocked = it2->is_blocked;
+            li.is_counted = it2->is_counted;
+            li.is_underthreshold = it2->is_underthreshold;
+            li.is_looted = false;
+            li.needs_quest = it2->needs_quest;
+            li.randomPropertyId = it2->randomPropertyId;
+            li.randomSuffix = it2->randomSuffix;
+            li.rollWinnerGUID = ObjectGuid::Empty;
 
-        loot->items.push_back(li);
-        loot->unlootedCount++;
+            // Copy the extra loot conditions from the item in the loot template
+            lt->CopyConditions(&li);
+
+            if (li.needs_quest)
+            {
+                loot->quest_items.push_back(li);
+            }
+            else
+            {
+                loot->items.push_back(li);
+            }
+
+            // non-conditional one-player only items are counted here,
+            // free for all items are counted in FillFFALoot(),
+            // non-ffa conditionals are counted in FillNonQuestNonFFAConditionalLoot()
+            if ((!li.needs_quest && li.conditions.empty() && !(proto->Flags & ITEM_FLAG_MULTI_DROP)) || li.is_counted)
+            {
+                ++loot->unlootedCount;
+            }
+        }
+    }
+
+    if (loot->unlootedCount)
+    {
+        loot->FillNotNormalLootFor(player, true);
     }
 
     // Mark the item if it has loot so it won't be generated again on open

src/server/game/Loot/LootItemStorage.h

@@ -13,14 +13,21 @@ Xinef
 
 struct StoredLootItem
 {
-    StoredLootItem(uint32 i, uint32 c, int32 ri, uint32 rs) :
-        itemid(i), count(c), randomPropertyId(ri), randomSuffix(rs) { }
+    StoredLootItem(uint32 i, uint32 c, int32 ri, uint32 rs, bool follow_loot_rules, bool freeforall, bool is_blocked, bool is_counted, bool is_underthreshold, bool needs_quest) :
+        itemid(i), count(c), randomPropertyId(ri), randomSuffix(rs), follow_loot_rules(follow_loot_rules), freeforall(freeforall), is_blocked(is_blocked),
+        is_counted(is_counted), is_underthreshold(is_underthreshold), needs_quest(needs_quest) { }
 
     // If itemid == 0 - money amount is stored in count value
     uint32 itemid;
     uint32 count;
     int32 randomPropertyId;
     uint32 randomSuffix;
+    bool follow_loot_rules;
+    bool freeforall;
+    bool is_blocked;
+    bool is_counted;
+    bool is_underthreshold;
+    bool needs_quest;
 };
 
 typedef std::list<StoredLootItem> StoredLootItemList;
@@ -39,7 +46,7 @@ public:
     void RemoveEntryFromDB(ObjectGuid containerGUID, uint32 itemid, uint32 count);
 
     void AddNewStoredLoot(Loot* loot, Player* player);
-    bool LoadStoredLoot(Item* item);
+    bool LoadStoredLoot(Item* item, Player* player);
 
     void RemoveStoredLootItem(ObjectGuid containerGUID, uint32 itemid, uint32 count, Loot* loot);
     void RemoveStoredLootMoney(ObjectGuid containerGUID, Loot* loot);

src/server/game/Loot/LootMgr.cpp

@@ -1375,18 +1375,93 @@ void LootTemplate::CopyConditions(ConditionList conditions)
             group->CopyConditions(conditions);
 }
 
-void LootTemplate::CopyConditions(LootItem* li) const
+bool LootTemplate::CopyConditions(LootItem* li) const
 {
-    // Copies the conditions list from a template item to a LootItem
     for (LootStoreItemList::const_iterator _iter = Entries.begin(); _iter != Entries.end(); ++_iter)
     {
         LootStoreItem* item = *_iter;
-        if (item->itemid != li->itemid)
+        if (item->reference)
+        {
+            if (LootTemplate const* Referenced = LootTemplates_Reference.GetLootFor(item->reference))
+            {
+                if (Referenced->CopyConditions(li))
+                {
+                    return true;
+                }
+            }
+        }
+        else
+        {
+            if (item->itemid != li->itemid)
+            {
+                continue;
+            }
+
+            li->conditions = item->conditions;
+            return true;
+        }
+    }
+
+    for (LootGroups::const_iterator groupItr = Groups.begin(); groupItr != Groups.end(); ++groupItr)
+    {
+        LootGroup* group = *groupItr;
+        if (!group)
             continue;
 
-        li->conditions = item->conditions;
-        break;
+        LootStoreItemList* itemList = group->GetExplicitlyChancedItemList();
+        for (LootStoreItemList::iterator i = itemList->begin(); i != itemList->end(); ++i)
+        {
+            LootStoreItem* item = *i;
+            if (item->reference)
+            {
+                if (LootTemplate const* Referenced = LootTemplates_Reference.GetLootFor(item->reference))
+                {
+                    if (Referenced->CopyConditions(li))
+                    {
+                        return true;
+                    }
+                }
+            }
+            else
+            {
+                if (item->itemid != li->itemid)
+                {
+                    continue;
+                }
+
+                li->conditions = item->conditions;
+                return true;
+            }
+        }
+
+        itemList = group->GetEqualChancedItemList();
+        for (LootStoreItemList::iterator i = itemList->begin(); i != itemList->end(); ++i)
+        {
+            LootStoreItem* item = *i;
+            if (item->reference)
+            {
+                if (LootTemplate const* Referenced = LootTemplates_Reference.GetLootFor(item->reference))
+                {
+                    if (Referenced->CopyConditions(li))
+                    {
+                        return true;
+                    }
+                }
+            }
+            else
+            {
+                if (item->itemid != li->itemid)
+                {
+                    continue;
+                }
+
+                li->conditions = item->conditions;
+                return true;
+            }
+        }
     }
+
+    return false;
 }
 
 // Rolls for every item in the template and adds the rolled items the the loot

src/server/game/Loot/LootMgr.h

@@ -243,7 +243,7 @@ public:
     // Rolls for every item in the template and adds the rolled items the the loot
     void Process(Loot& loot, LootStore const& store, uint16 lootMode, Player const* player, uint8 groupId = 0) const;
     void CopyConditions(ConditionList conditions);
-    void CopyConditions(LootItem* li) const;
+    bool CopyConditions(LootItem* li) const;
 
     // True if template includes at least 1 quest drop entry
     [[nodiscard]] bool HasQuestDrop(LootTemplateMap const& store, uint8 groupId = 0) const;
@@ -371,9 +371,9 @@ struct Loot
     bool hasItemForAll() const;
     bool hasItemFor(Player* player) const;
     [[nodiscard]] bool hasOverThresholdItem() const;
+    void FillNotNormalLootFor(Player* player, bool presentAtLooting);
 
 private:
-    void FillNotNormalLootFor(Player* player, bool presentAtLooting);
     QuestItemList* FillFFALoot(Player* player);
     QuestItemList* FillQuestLoot(Player* player);
     QuestItemList* FillNonQuestNonFFAConditionalLoot(Player* player, bool presentAtLooting);