// Helper function, to process a slave list
void CreatureLinkingHolder::ProcessSlaveGuidList(CreatureLinkingEvent eventType, Creature* pSource, uint32 flag, uint16 searchRange, GuidList& slaveGuidList, Unit* pEnemy)
{
if (!flag)
return;
for (GuidList::iterator slave_itr = slaveGuidList.begin(); slave_itr != slaveGuidList.end();)
{
Creature* pSlave = pSource->GetMap()->GetCreature(*slave_itr);
if (!pSlave)
{
// Remove old guid first
slaveGuidList.erase(slave_itr++);
continue;
}
++slave_itr;
// Ignore Pets
if (pSlave->IsPet())
continue;
// Handle single slave
if (IsSlaveInRangeOfBoss(pSlave, pSource, searchRange))
ProcessSlave(eventType, pSource, flag, pSlave, pEnemy);
}
}
// This function lets a slave refollow his master
bool CreatureLinkingHolder::TryFollowMaster(Creature* pCreature)
{
CreatureLinkingInfo const* pInfo = sCreatureLinkingMgr.GetLinkedTriggerInformation(pCreature);
if (!pInfo || !(pInfo->linkingFlag & FLAG_FOLLOW))
return false;
Creature* pMaster = NULL;
if (pInfo->mapId != INVALID_MAP_ID) // entry case
{
BossGuidMapBounds finds = m_masterGuid.equal_range(pInfo->masterId);
for (BossGuidMap::iterator itr = finds.first; itr != finds.second; ++itr)
{
pMaster = pCreature->GetMap()->GetCreature(itr->second);
if (pMaster && IsSlaveInRangeOfBoss(pCreature, pMaster, pInfo->searchRange))
break;
}
}
else // guid case
{
CreatureData const* masterData = sObjectMgr.GetCreatureData(pInfo->masterDBGuid);
CreatureInfo const* cInfo = ObjectMgr::GetCreatureTemplate(masterData->id);
pMaster = pCreature->GetMap()->GetCreature(ObjectGuid(cInfo->GetHighGuid(), cInfo->Entry, pInfo->masterDBGuid));
}
if (pMaster && pMaster->isAlive())
{
SetFollowing(pCreature, pMaster);
return true;
}
return false;
}
/** Worker function to check if a spawning condition is met
*
* This function is used directly from above function, and for recursive use
* in case of recursive use it is used only on _map with information of lowGuid.
*
* @param lowGuid (only relevant in case of recursive uses) -- db-guid of the npc that is checked
* @param _map Map on which things are checked
* @param pInfo (only shipped in case of initial use) -- used as marker of first use, also in first use filled directly
* @param sx, sy (spawn position of the checked npc with initial use)
*/
bool CreatureLinkingHolder::CanSpawn(uint32 lowGuid, Map* _map, CreatureLinkingInfo const* pInfo, float sx, float sy) const
{
if (!pInfo) // Prepare data for recursive use
{
CreatureData const* data = sObjectMgr.GetCreatureData(lowGuid);
if (!data)
return true;
pInfo = sCreatureLinkingMgr.GetLinkedTriggerInformation(data->id, lowGuid, data->mapid);
if (!pInfo)
return true;
// Has lowGuid npc actually spawning linked?
if (!sCreatureLinkingMgr.IsSpawnedByLinkedMob(pInfo))
return true;
sx = data->posX; // Fill position data
sy = data->posY;
}
if (pInfo->searchRange == 0) // Map wide case
{
if (!pInfo->masterDBGuid)
return false; // This should never happen
if (pInfo->linkingFlag & FLAG_CANT_SPAWN_IF_BOSS_DEAD)
return IsRespawnReady(pInfo->masterDBGuid, _map);
else if (pInfo->linkingFlag & FLAG_CANT_SPAWN_IF_BOSS_ALIVE)
return !IsRespawnReady(pInfo->masterDBGuid, _map);
else
return true;
}
// Search for nearby master
BossGuidMapBounds finds = m_masterGuid.equal_range(pInfo->masterId);
for (BossGuidMap::const_iterator itr = finds.first; itr != finds.second; ++itr)
{
Creature* pMaster = _map->GetCreature(itr->second);
if (pMaster && IsSlaveInRangeOfBoss(pMaster, sx, sy, pInfo->searchRange))
{
if (pInfo->linkingFlag & FLAG_CANT_SPAWN_IF_BOSS_DEAD)
return pMaster->IsAlive();
else if (pInfo->linkingFlag & FLAG_CANT_SPAWN_IF_BOSS_ALIVE)
return !pMaster->IsAlive();
else
return true;
}
}
return true; // local boss does not exist - spawn
}
// This function lets a slave refollow his master
bool CreatureLinkingHolder::TryFollowMaster(Creature* pCreature)
{
CreatureLinkingInfo const* pInfo = sCreatureLinkingMgr.GetLinkedTriggerInformation(pCreature);
if (!pInfo || !(pInfo->linkingFlag & FLAG_FOLLOW))
return false;
BossGuidMapBounds finds = m_masterGuid.equal_range(pInfo->masterId);
for (BossGuidMap::iterator itr = finds.first; itr != finds.second; ++itr)
{
Creature* pMaster = pCreature->GetMap()->GetCreature(itr->second);
if (pMaster && pMaster->isAlive() && IsSlaveInRangeOfBoss(pCreature, pMaster, pInfo->searchRange))
{
SetFollowing(pCreature, pMaster);
return true;
}
}
return false;
}
// Function to check if a passive spawning condition is met
bool CreatureLinkingHolder::CanSpawn(Creature* pCreature)
{
CreatureLinkingInfo const* pInfo = sCreatureLinkingMgr.GetLinkedTriggerInformation(pCreature);
if (!pInfo)
return true;
if (pInfo->searchRange == 0) // Map wide case
{
if (!pInfo->masterDBGuid)
return false; // This should never happen
if (pInfo->linkingFlag & FLAG_CANT_SPAWN_IF_BOSS_DEAD)
return pCreature->GetMap()->GetPersistentState()->GetCreatureRespawnTime(pInfo->masterDBGuid) == 0;
else if (pInfo->linkingFlag & FLAG_CANT_SPAWN_IF_BOSS_ALIVE)
return pCreature->GetMap()->GetPersistentState()->GetCreatureRespawnTime(pInfo->masterDBGuid) > 0;
else
return true;
}
// Search for nearby master
BossGuidMapBounds finds = m_masterGuid.equal_range(pInfo->masterId);
for (BossGuidMap::iterator itr = finds.first; itr != finds.second; ++itr)
{
Creature* pMaster = pCreature->GetMap()->GetCreature(itr->second);
if (pMaster && IsSlaveInRangeOfBoss(pCreature, pMaster, pInfo->searchRange))
{
if (pInfo->linkingFlag & FLAG_CANT_SPAWN_IF_BOSS_DEAD)
return pMaster->isAlive();
else if (pInfo->linkingFlag & FLAG_CANT_SPAWN_IF_BOSS_ALIVE)
return !pMaster->isAlive();
else
return true;
}
}
return true; // local boss does not exist - spawn
}
// Function to process actions for linked NPCs
void CreatureLinkingHolder::DoCreatureLinkingEvent(CreatureLinkingEvent eventType, Creature* pSource, Unit* pEnemy /* = NULL*/)
{
// This check will be needed in reload case
if (!sCreatureLinkingMgr.IsLinkedEventTrigger(pSource))
return;
// Ignore atypic behaviour
if (pSource->IsControlledByPlayer())
return;
if (eventType == LINKING_EVENT_AGGRO && !pEnemy)
return;
uint32 eventFlagFilter = 0;
uint32 reverseEventFlagFilter = 0;
switch (eventType)
{
case LINKING_EVENT_AGGRO: eventFlagFilter = EVENT_MASK_ON_AGGRO; reverseEventFlagFilter = FLAG_TO_AGGRO_ON_AGGRO; break;
case LINKING_EVENT_EVADE: eventFlagFilter = EVENT_MASK_ON_EVADE; reverseEventFlagFilter = FLAG_TO_RESPAWN_ON_EVADE; break;
case LINKING_EVENT_DIE: eventFlagFilter = EVENT_MASK_ON_DIE; reverseEventFlagFilter = 0; break;
case LINKING_EVENT_RESPAWN: eventFlagFilter = EVENT_MASK_ON_RESPAWN; reverseEventFlagFilter = FLAG_FOLLOW; break;
}
// Process Slaves (by entry)
HolderMapBounds bounds = m_holderMap.equal_range(pSource->GetEntry());
for (HolderMap::iterator itr = bounds.first; itr != bounds.second; ++itr)
ProcessSlaveGuidList(eventType, pSource, itr->second.linkingFlag & eventFlagFilter, itr->second.searchRange, itr->second.linkedGuids, pEnemy);
// Process Slaves (by guid)
bounds = m_holderGuidMap.equal_range(pSource->GetGUIDLow());
for (HolderMap::iterator itr = bounds.first; itr != bounds.second; ++itr)
ProcessSlaveGuidList(eventType, pSource, itr->second.linkingFlag & eventFlagFilter, itr->second.searchRange, itr->second.linkedGuids, pEnemy);
// Process Master
if (CreatureLinkingInfo const* pInfo = sCreatureLinkingMgr.GetLinkedTriggerInformation(pSource))
{
if (pInfo->linkingFlag & reverseEventFlagFilter)
{
Creature* pMaster = NULL;
if (pInfo->mapId != INVALID_MAP_ID) // entry case
{
BossGuidMapBounds finds = m_masterGuid.equal_range(pInfo->masterId);
for (BossGuidMap::iterator itr = finds.first; itr != finds.second; ++itr)
{
pMaster = pSource->GetMap()->GetCreature(itr->second);
if (pMaster && IsSlaveInRangeOfBoss(pSource, pMaster, pInfo->searchRange))
break;
}
}
else // guid case
{
CreatureData const* masterData = sObjectMgr.GetCreatureData(pInfo->masterDBGuid);
CreatureInfo const* cInfo = ObjectMgr::GetCreatureTemplate(masterData->id);
pMaster = pSource->GetMap()->GetCreature(ObjectGuid(cInfo->GetHighGuid(), cInfo->Entry, pInfo->masterDBGuid));
}
if (pMaster)
{
switch (eventType)
{
case LINKING_EVENT_AGGRO:
if (pMaster->IsControlledByPlayer())
return;
if (pMaster->isInCombat())
pMaster->SetInCombatWith(pEnemy);
else
pMaster->AI()->AttackStart(pEnemy);
break;
case LINKING_EVENT_EVADE:
if (!pMaster->isAlive())
pMaster->Respawn();
break;
case LINKING_EVENT_RESPAWN:
if (pMaster->isAlive())
SetFollowing(pSource, pMaster);
}
}
}
}
}
// Function to check if a slave belongs to a boss by range-issue
bool CreatureLinkingHolder::IsSlaveInRangeOfBoss(Creature const* pSlave, Creature const* pBoss, uint16 searchRange) const
{
float sX, sY, sZ;
pSlave->GetRespawnCoord(sX, sY, sZ);
return IsSlaveInRangeOfBoss(pBoss, sX, sY, searchRange);
}
