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feat(Core/Spell): implement SPELL_ATTR2_CHAIN_FROM_CASTER (#22515)

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Co-authored-by: Shauren <shauren.trinity@gmail.com>
This commit is contained in:
Jelle Meeus
2025-07-29 05:36:36 -07:00
committed by GitHub
parent a77bd19104
commit 98eda3684d
2 changed files with 12 additions and 15 deletions
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25
src/server/game/Spells/Spell.cpp
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@@ -2238,21 +2238,15 @@ void Spell::SearchChainTargets(std::list<WorldObject*>& targets, uint32 chainTar
if (isBouncingFar)
searchRadius *= chainTargets;
WorldObject* chainSource = m_spellInfo->HasAttribute(SPELL_ATTR2_CHAIN_FROM_CASTER) ? m_caster : target;
std::list<WorldObject*> tempTargets;
SearchAreaTargets(tempTargets, searchRadius, target, m_caster, objectType, selectType, condList);
SearchAreaTargets(tempTargets, searchRadius, chainSource, m_caster, objectType, selectType, condList);
tempTargets.remove(target);
// remove targets which are always invalid for chain spells
// for some spells allow only chain targets in front of caster (swipe for example)
if (!isBouncingFar)
{
for (std::list<WorldObject*>::iterator itr = tempTargets.begin(); itr != tempTargets.end();)
{
std::list<WorldObject*>::iterator checkItr = itr++;
if (!m_caster->HasInArc(static_cast<float>(M_PI), *checkItr))
tempTargets.erase(checkItr);
}
}
tempTargets.remove_if([this](WorldObject* target) { return !m_caster->HasInArc(static_cast<float>(M_PI), target); });
while (chainTargets)
{
@@ -2267,7 +2261,7 @@ void Spell::SearchChainTargets(std::list<WorldObject*>& targets, uint32 chainTar
if (Unit* unit = (*itr)->ToUnit())
{
uint32 deficit = unit->GetMaxHealth() - unit->GetHealth();
if (deficit > maxHPDeficit && target->IsWithinDist(unit, jumpRadius) && target->IsWithinLOSInMap(unit, VMAP::ModelIgnoreFlags::M2))
if (deficit > maxHPDeficit && chainSource->IsWithinDist(unit, jumpRadius) && chainSource->IsWithinLOSInMap(unit, VMAP::ModelIgnoreFlags::M2))
{
foundItr = itr;
maxHPDeficit = deficit;
@@ -2282,19 +2276,22 @@ void Spell::SearchChainTargets(std::list<WorldObject*>& targets, uint32 chainTar
{
if (foundItr == tempTargets.end())
{
if ((!isBouncingFar || target->IsWithinDist(*itr, jumpRadius)) && target->IsWithinLOSInMap(*itr, VMAP::ModelIgnoreFlags::M2))
if ((!isBouncingFar || chainSource->IsWithinDist(*itr, jumpRadius)) && chainSource->IsWithinLOSInMap(*itr, VMAP::ModelIgnoreFlags::M2))
foundItr = itr;
}
else if (target->GetDistanceOrder(*itr, *foundItr) && target->IsWithinLOSInMap(*itr, VMAP::ModelIgnoreFlags::M2))
else if (chainSource->GetDistanceOrder(*itr, *foundItr) && chainSource->IsWithinLOSInMap(*itr, VMAP::ModelIgnoreFlags::M2))
foundItr = itr;
}
}
// not found any valid target - chain ends
if (foundItr == tempTargets.end())
break;
target = *foundItr;
if (!m_spellInfo->HasAttribute(SPELL_ATTR2_CHAIN_FROM_CASTER))
chainSource = *foundItr;
targets.push_back(*foundItr);
tempTargets.erase(foundItr);
targets.push_back(target);
--chainTargets;
}
}