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Core/AI: Actually accurately reproduce the logic from before 8499434 that determines what summons start following on appearance. Third time's the charm?

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Closes #23513.

(cherry picked from commit 3cdf27494f)
(cherry picked from commit 63383da36e)
This commit is contained in:
Treeston
2019-06-26 01:04:27 +02:00
committed by Shauren
parent eda6e5c316
commit c9d52c9547
1 changed files with 41 additions and 16 deletions
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57
src/server/game/AI/CreatureAI.cpp
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@@ -159,25 +159,50 @@ void CreatureAI::TriggerAlert(Unit const* who) const
me->GetMotionMaster()->MoveDistract(5 * IN_MILLISECONDS, me->GetAbsoluteAngle(who));
}
// adapted from logic in Spell:EFfectSummonType before commit 8499434
static bool ShouldFollowOnSpawn(SummonPropertiesEntry const* properties)
{
// Summons without SummonProperties are generally scripted summons that don't belong to any owner
if (!properties)
return false;
switch (properties->Control)
{
case SUMMON_CATEGORY_PET:
return true;
case SUMMON_CATEGORY_WILD:
case SUMMON_CATEGORY_ALLY:
case SUMMON_CATEGORY_UNK:
if (properties->GetFlags().HasFlag(SummonPropertiesFlags::JoinSummonerSpawnGroup))
return true;
switch (SummonTitle(properties->Title))
{
case SummonTitle::Pet:
case SummonTitle::Guardian:
case SummonTitle::Runeblade:
case SummonTitle::Minion:
case SummonTitle::Companion:
return true;
default:
return false;
}
default:
return false;
}
}
void CreatureAI::JustAppeared()
{
// Filter which type of summons apply the following follow handling
if (!me->IsSummon())
return;
// Summons without SummonProperties are generally scripted summons that don't belong to any owner
TempSummon* summon = me->ToTempSummon();
if (!summon->m_Properties || (summon->m_Properties->Control != SUMMON_CATEGORY_UNK && summon->m_Properties->Control != SUMMON_CATEGORY_PET))
return;
// Not applied to vehicles
if (summon->GetVehicle())
return;
if (Unit* owner = summon->GetCharmerOrOwner())
if (TempSummon* summon = me->ToTempSummon())
{
summon->GetMotionMaster()->Clear();
summon->GetMotionMaster()->MoveFollow(owner, PET_FOLLOW_DIST, summon->GetFollowAngle());
// Only apply this to specific types of summons
if (!summon->GetVehicle() && ShouldFollowOnSpawn(summon->m_Properties))
{
if (Unit* owner = summon->GetCharmerOrOwner())
{
summon->GetMotionMaster()->Clear();
summon->GetMotionMaster()->MoveFollow(owner, PET_FOLLOW_DIST, summon->GetFollowAngle());
}
}
}
}