if (!Aur->IsPassive() && !Aur->IsPersistent())
{
for (AuraMap::iterator i2 = m_Auras.lower_bound(spair); i2 != m_Auras.upper_bound(spair);)
{
Aura* aur2 = i2->second;
if (aur2 && !stackModified && aur2->GetId() == Aur->GetId())
{
// Non stackable and capped auras do not allow stacking
if (!(aurSpellInfo->StackAmount && uint32(aur2->GetStackAmount()) < aurSpellInfo->StackAmount))
{
// Do not let the stack size exceed the maximum stack limit
// Instead of adding a new stack, just set the duration time
// we need to use time from Aur because of diminishing effects
aur2->SetAuraDuration(Aur->GetAuraMaxDuration());
aur2->UpdateAuraDuration();
if (IsPositiveSpell(Aur->GetSpellProto()->Id))
{
delete Aur;
return false;
}
break;
}

// Allow mongoose procs from different weapon stacks
if (Aur->GetId() == 28093 || Aur->GetId() == 20007 && Aur->GetCastItemGUID() != i2->second->GetCastItemGUID())
{ i2++; continue; }

// Increment aura's stack, one stack per one call
Aur->SetStackAmount(aur2->GetStackAmount()+1);
stackModified = true;

// Existing aura will be replaced with the newly created one
RemoveAura(i2,AURA_REMOVE_BY_STACK);
i2 = m_Auras.lower_bound(spair);
continue;
}
++i2;
}
}

if (!Aur->IsPassive() && !Aur->IsPersistent())
{
for (AuraMap::iterator i2 = m_Auras.lower_bound(spair); i2 != m_Auras.upper_bound(spair);)
{
Aura* aur2 = i2->second;
if (aur2->GetCasterGUID() == Aur->GetCasterGUID())
{
if (!stackModified)
{
// replace aura if next will > spell StackAmount
if (aurSpellInfo->StackAmount)
{
// prevent adding stack more than once
stackModified=true;
Aur->SetStackAmount(aur2->GetStackAmount());
if (Aur->GetStackAmount() < aurSpellInfo->StackAmount)
Aur->SetStackAmount(Aur->GetStackAmount()+1);
}

// Allow mongoose procs from different weapon stacks
if (Aur->GetId() == 28093 || Aur->GetId() == 20007)
{
if (Aur->GetCastItemGUID() != i2->second->GetCastItemGUID())
{
i2++;
continue;
}
}

RemoveAura(i2,AURA_REMOVE_BY_STACK);
i2 = m_Auras.lower_bound(spair);
continue;
}
}
switch(aurSpellInfo->EffectApplyAuraName[Aur->GetEffIndex()])
{
// DOT or HOT from different casters will stack
case SPELL_AURA_PERIODIC_DAMAGE:
case SPELL_AURA_PERIODIC_HEAL:
case SPELL_AURA_PERIODIC_TRIGGER_SPELL:
case SPELL_AURA_PERIODIC_ENERGIZE:
case SPELL_AURA_PERIODIC_MANA_LEECH:
case SPELL_AURA_PERIODIC_LEECH:
case SPELL_AURA_POWER_BURN_MANA:
case SPELL_AURA_OBS_MOD_MANA:
case SPELL_AURA_OBS_MOD_HEALTH:
++i2;
continue;
}
RemoveAura(i2,AURA_REMOVE_BY_STACK);
i2=m_Auras.lower_bound(spair);
continue;
}
}