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feat(Core/Loot): Add Rate.Drop.Item.GroupAmount to increase loot generated from loot groups (#16220)

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* Adds the `Rate.Drop.Item.GroupAmount` setting to the world config. Causes top-level loot groups to drop multiple items. Does not affect references.

* Don't multiply a group if a quest item gets selected. Avoids strange situations like Arcanist Doan having three hearts.

* Resolve syntax error.

* Fix whitespace

* Fix code style issue
This commit is contained in:
Keller (KJack)
2023-05-14 06:26:12 -04:00
committed by GitHub
parent 89acad2145
commit 7fcb57e5ab
5 changed files with 56 additions and 19 deletions
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22
src/server/apps/worldserver/worldserver.conf.dist
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@@ -2267,7 +2267,20 @@ Rate.Drop.Item.Artifact = 1
Rate.Drop.Item.Referenced = 1
Rate.Drop.Money = 1
# RewardBonusMoney
# Rate.Drop.Item.ReferencedAmount
# Description: Multiplier for referenced loot amount. Makes many raid bosses (and others) drop additional loot.
# Default: 1
Rate.Drop.Item.ReferencedAmount = 1
#
# Rate.Drop.Item.GroupAmount
# Description: Multiplier for grouped items. Makes many dungeon bosses (and others) drop additional loot.
# Default: 1
Rate.Drop.Item.GroupAmount = 1
# Rate.RewardBonusMoney
# Description: Allows to further tweak the amount of extra money rewarded by quests when the player
# is at MaxPlayerLevel (this amount is specified in quest_template.RewardBonusMoney).
# NOTE: the final amount will also affected by Rate.Drop.Money
@@ -2331,13 +2344,6 @@ Rate.BuyValue.Item.Legendary = 1
Rate.BuyValue.Item.Artifact = 1
Rate.BuyValue.Item.Heirloom = 1
#
# Rate.Drop.Item.ReferencedAmount
# Description: Multiplier for referenced loot amount.
# Default: 1
Rate.Drop.Item.ReferencedAmount = 1
#
# Rate.XP.Kill
# Rate.XP.Quest

47
src/server/game/Loot/LootMgr.cpp
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@@ -100,7 +100,7 @@ public:
bool HasQuestDrop(LootTemplateMap const& store) const; // True if group includes at least 1 quest drop entry
bool HasQuestDropForPlayer(Player const* player, LootTemplateMap const& store) const;
// The same for active quests of the player
void Process(Loot& loot, Player const* player, LootStore const& lootstore, uint16 lootMode) const; // Rolls an item from the group (if any) and adds the item to the loot
void Process(Loot& loot, Player const* player, LootStore const& lootstore, uint16 lootMode, uint16 nonRefIterationsLeft) const; // Rolls an item from the group (if any) and adds the item to the loot
float RawTotalChance() const; // Overall chance for the group (without equal chanced items)
float TotalChance() const; // Overall chance for the group
@@ -570,7 +570,8 @@ bool Loot::FillLoot(uint32 lootId, LootStore const& store, Player* lootOwner, bo
items.reserve(MAX_NR_LOOT_ITEMS);
quest_items.reserve(MAX_NR_QUEST_ITEMS);
tab->Process(*this, store, lootMode, lootOwner); // Processing is done there, callback via Loot::AddItem()
// Initial group is 0, top level set to True
tab->Process(*this, store, lootMode, lootOwner, 0, true); // Processing is done there, callback via Loot::AddItem()
sScriptMgr->OnAfterLootTemplateProcess(this, tab, store, lootOwner, personal, noEmptyError, lootMode);
@@ -1413,7 +1414,7 @@ void LootTemplate::LootGroup::CopyConditions(ConditionList /*conditions*/)
}
// Rolls an item from the group (if any takes its chance) and adds the item to the loot
void LootTemplate::LootGroup::Process(Loot& loot, Player const* player, LootStore const& store, uint16 lootMode) const
void LootTemplate::LootGroup::Process(Loot& loot, Player const* player, LootStore const& store, uint16 lootMode, uint16 nonRefIterationsLeft) const
{
if (LootStoreItem const* item = Roll(loot, player, store, lootMode))
{
@@ -1426,7 +1427,9 @@ void LootTemplate::LootGroup::Process(Loot& loot, Player const* player, LootStor
uint32 maxcount = uint32(float(item->maxcount) * sWorld->getRate(RATE_DROP_ITEM_REFERENCED_AMOUNT));
sScriptMgr->OnAfterRefCount(player, loot, rate, lootMode, const_cast<LootStoreItem*>(item), maxcount, store);
for (uint32 loop = 0; loop < maxcount; ++loop) // Ref multiplicator
Referenced->Process(loot, store, lootMode, player, item->groupid);
// This reference needs to be processed further, but it is marked isTopLevel=false so that any groups inside
// the reference are not multiplied by Rate.Drop.Item.GroupAmount
Referenced->Process(loot, store, lootMode, player, item->groupid, false);
}
}
else
@@ -1434,6 +1437,14 @@ void LootTemplate::LootGroup::Process(Loot& loot, Player const* player, LootStor
// Plain entries (not a reference, not grouped)
sScriptMgr->OnBeforeDropAddItem(player, loot, rate, lootMode, const_cast<LootStoreItem*>(item), store);
loot.AddItem(*item); // Chance is already checked, just add
// If we still have non-ref runs to do for this group AND this item wasn't a reference,
// recursively call this function to produce more items for this group.
// However, if this is a quest item we shouldn't multiply this group.
if (nonRefIterationsLeft > 1 && !item->needs_quest)
{
this->Process(loot, player, store, lootMode, nonRefIterationsLeft-1);
}
}
}
}
@@ -1665,7 +1676,7 @@ bool LootTemplate::CopyConditions(LootItem* li, uint32 conditionLootId) const
}
// Rolls for every item in the template and adds the rolled items the the loot
void LootTemplate::Process(Loot& loot, LootStore const& store, uint16 lootMode, Player const* player, uint8 groupId) const
void LootTemplate::Process(Loot& loot, LootStore const& store, uint16 lootMode, Player const* player, uint8 groupId, bool isTopLevel) const
{
bool rate = store.IsRatesAllowed();
@@ -1677,7 +1688,15 @@ void LootTemplate::Process(Loot& loot, LootStore const& store, uint16 lootMode,
if (!Groups[groupId - 1])
return;
Groups[groupId - 1]->Process(loot, player, store, lootMode);
// Rate.Drop.Item.GroupAmount is only in effect for the top loot template level
if (isTopLevel)
{
Groups[groupId - 1]->Process(loot, player, store, lootMode, sWorld->getRate(RATE_DROP_ITEM_GROUP_AMOUNT));
}
else
{
Groups[groupId - 1]->Process(loot, player, store, lootMode, 0);
}
return;
}
@@ -1687,7 +1706,6 @@ void LootTemplate::Process(Loot& loot, LootStore const& store, uint16 lootMode,
LootStoreItem* item = *i;
if (!(item->lootmode & lootMode)) // Do not add if mode mismatch
continue;
if (!item->Roll(rate, player, loot, store))
continue; // Bad luck for the entry
@@ -1700,7 +1718,8 @@ void LootTemplate::Process(Loot& loot, LootStore const& store, uint16 lootMode,
uint32 maxcount = uint32(float(item->maxcount) * sWorld->getRate(RATE_DROP_ITEM_REFERENCED_AMOUNT));
sScriptMgr->OnAfterRefCount(player, loot, rate, lootMode, item, maxcount, store);
for (uint32 loop = 0; loop < maxcount; ++loop) // Ref multiplicator
Referenced->Process(loot, store, lootMode, player, item->groupid);
// we're no longer in the top level, so isTopLevel is false
Referenced->Process(loot, store, lootMode, player, item->groupid, false);
}
else
{
@@ -1713,7 +1732,17 @@ void LootTemplate::Process(Loot& loot, LootStore const& store, uint16 lootMode,
// Now processing groups
for (LootGroups::const_iterator i = Groups.begin(); i != Groups.end(); ++i)
if (LootGroup* group = *i)
group->Process(loot, player, store, lootMode);
{
// Rate.Drop.Item.GroupAmount is only in effect for the top loot template level
if (isTopLevel)
{
group->Process(loot, player, store, lootMode, sWorld->getRate(RATE_DROP_ITEM_GROUP_AMOUNT));
}
else
{
group->Process(loot, player, store, lootMode, 0);
}
}
}
// True if template includes at least 1 quest drop entry

2
src/server/game/Loot/LootMgr.h
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@@ -253,7 +253,7 @@ public:
// Adds an entry to the group (at loading stage)
void AddEntry(LootStoreItem* item);
// 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 Process(Loot& loot, LootStore const& store, uint16 lootMode, Player const* player, uint8 groupId = 0, bool isTopLevel = true) const;
void CopyConditions(ConditionList conditions);
bool CopyConditions(LootItem* li, uint32 conditionLootId = 0) const;

2
src/server/game/World/IWorld.h
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@@ -436,8 +436,8 @@ enum Rates
RATE_DROP_ITEM_LEGENDARY,
RATE_DROP_ITEM_ARTIFACT,
RATE_DROP_ITEM_REFERENCED,
RATE_DROP_ITEM_REFERENCED_AMOUNT,
RATE_DROP_ITEM_GROUP_AMOUNT,
RATE_SELLVALUE_ITEM_POOR,
RATE_SELLVALUE_ITEM_NORMAL,
RATE_SELLVALUE_ITEM_UNCOMMON,

2
src/server/game/World/World.cpp
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@@ -492,7 +492,9 @@ void World::LoadConfigSettings(bool reload)
_rate_values[RATE_DROP_ITEM_ARTIFACT] = sConfigMgr->GetOption<float>("Rate.Drop.Item.Artifact", 1.0f);
_rate_values[RATE_DROP_ITEM_REFERENCED] = sConfigMgr->GetOption<float>("Rate.Drop.Item.Referenced", 1.0f);
_rate_values[RATE_DROP_ITEM_REFERENCED_AMOUNT] = sConfigMgr->GetOption<float>("Rate.Drop.Item.ReferencedAmount", 1.0f);
_rate_values[RATE_DROP_ITEM_GROUP_AMOUNT] = sConfigMgr->GetOption<float>("Rate.Drop.Item.GroupAmount", 1.0f);
_rate_values[RATE_DROP_MONEY] = sConfigMgr->GetOption<float>("Rate.Drop.Money", 1.0f);
_rate_values[RATE_REWARD_BONUS_MONEY] = sConfigMgr->GetOption<float>("Rate.RewardBonusMoney", 1.0f);
_rate_values[RATE_XP_KILL] = sConfigMgr->GetOption<float>("Rate.XP.Kill", 1.0f);
_rate_values[RATE_XP_BG_KILL_AV] = sConfigMgr->GetOption<float>("Rate.XP.BattlegroundKillAV", 1.0f);