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Core/Spells: add correct checking for dispeling errors. Fixes spammable cleanse.

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This commit is contained in:
Kandera
2012-03-15 10:56:56 -04:00
parent 84891377b5
commit 01bc6c483b
4 changed files with 62 additions and 39 deletions
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src/server/game/Spells/SpellEffects.cpp
+2 -39
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@@ -2536,7 +2536,6 @@ void Spell::EffectLearnSpell(SpellEffIndex effIndex)
}
typedef std::list< std::pair<uint32, uint64> > DispelList;
typedef std::list< std::pair<Aura*, uint8> > DispelChargesList;
void Spell::EffectDispel(SpellEffIndex effIndex)
{
if (effectHandleMode != SPELL_EFFECT_HANDLE_HIT_TARGET)
@@ -2545,48 +2544,12 @@ void Spell::EffectDispel(SpellEffIndex effIndex)
if (!unitTarget)
return;
DispelChargesList dispel_list;
// Create dispel mask by dispel type
uint32 dispel_type = m_spellInfo->Effects[effIndex].MiscValue;
uint32 dispelMask = SpellInfo::GetDispelMask(DispelType(dispel_type));
// we should not be able to dispel diseases if the target is affected by unholy blight
if (dispelMask & (1 << DISPEL_DISEASE) && unitTarget->HasAura(50536))
dispelMask &= ~(1 << DISPEL_DISEASE);
Unit::AuraMap const& auras = unitTarget->GetOwnedAuras();
for (Unit::AuraMap::const_iterator itr = auras.begin(); itr != auras.end(); ++itr)
{
Aura* aura = itr->second;
AuraApplication * aurApp = aura->GetApplicationOfTarget(unitTarget->GetGUID());
if (!aurApp)
continue;
// don't try to remove passive auras
if (aura->IsPassive())
continue;
if (aura->GetSpellInfo()->GetDispelMask() & dispelMask)
{
if (aura->GetSpellInfo()->Dispel == DISPEL_MAGIC)
{
// do not remove positive auras if friendly target
// negative auras if non-friendly target
if (aurApp->IsPositive() == unitTarget->IsFriendlyTo(m_caster))
continue;
}
// The charges / stack amounts don't count towards the total number of auras that can be dispelled.
// Ie: A dispel on a target with 5 stacks of Winters Chill and a Polymorph has 1 / (1 + 1) -> 50% chance to dispell
// Polymorph instead of 1 / (5 + 1) -> 16%.
bool dispel_charges = aura->GetSpellInfo()->AttributesEx7 & SPELL_ATTR7_DISPEL_CHARGES;
uint8 charges = dispel_charges ? aura->GetCharges() : aura->GetStackAmount();
if (charges > 0)
dispel_list.push_back(std::make_pair(aura, charges));
}
}
DispelChargesList dispel_list;
unitTarget->GetDispellableAuraList(m_caster, dispelMask, dispel_list);
if (dispel_list.empty())
return;