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fix(Scripts/World): Emerald Dragon's Dream Fog should chase switch ta… (#12728)

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…rgets once reaching their chase target
This commit is contained in:
Skjalf
2022-08-15 04:03:36 -03:00
committed by GitHub
parent b7b882367e
commit 523d4fbb08
1 changed files with 86 additions and 26 deletions
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112
src/server/scripts/World/boss_emerald_dragons.cpp
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@@ -22,6 +22,7 @@
#include "Spell.h"
#include "SpellAuraEffects.h"
#include "SpellScript.h"
#include "TaskScheduler.h"
//
// Emerald Dragon NPCs and IDs (kept here for reference)
@@ -34,6 +35,9 @@ enum EmeraldDragonNPC
DRAGON_LETHON = 14888,
DRAGON_EMERISS = 14889,
DRAGON_TAERAR = 14890,
GUID_DRAGON = 1,
GUID_FOG_TARGET = 2
};
//
@@ -144,6 +148,14 @@ struct emerald_dragonAI : public WorldBossAI
}
}
void JustSummoned(Creature* summon) override
{
if (summon->GetEntry() == NPC_DREAM_FOG)
{
summon->AI()->SetGUID(me->GetGUID(), GUID_DRAGON);
}
}
void UpdateAI(uint32 diff) override
{
if (!UpdateVictim())
@@ -172,13 +184,66 @@ public:
struct npc_dream_fogAI : public ScriptedAI
{
npc_dream_fogAI(Creature* creature) : ScriptedAI(creature)
{
}
npc_dream_fogAI(Creature* creature) : ScriptedAI(creature) { }
void Reset() override
{
_roamTimer = 0;
ScheduleEvents();
}
void ScheduleEvents()
{
_scheduler.CancelAll();
_scheduler.Schedule(1s, [this](TaskContext context)
{
// Chase target, but don't attack - otherwise just roam around
if (Unit* chaseTarget = GetRandomUnitFromDragonThreatList())
{
me->GetMotionMaster()->Clear();
me->GetMotionMaster()->MoveFollow(chaseTarget, 0.02f, 0.0f);
_targetGUID = chaseTarget->GetGUID();
context.Repeat(15s, 30s);
}
else
{
me->GetMotionMaster()->Clear();
me->GetMotionMaster()->MoveRandom(25.0f);
context.Repeat(2500ms);
}
// Seeping fog movement is slow enough for a player to be able to walk backwards and still outpace it
me->SetWalk(true);
me->SetSpeed(MOVE_WALK, 0.75f);
});
}
void SetGUID(ObjectGuid guid, int32 type) override
{
if (type == GUID_DRAGON)
{
_dragonGUID = guid;
}
else if (type == GUID_FOG_TARGET)
{
if (guid == _targetGUID)
{
ScheduleEvents();
}
}
}
Unit* GetRandomUnitFromDragonThreatList()
{
if (Creature* dragon = ObjectAccessor::GetCreature(*me, _dragonGUID))
{
if (dragon->GetAI())
{
return dragon->GetAI()->SelectTarget(SelectTargetMethod::Random, 0, 0.0f, true);
}
}
return nullptr;
}
void UpdateAI(uint32 diff) override
@@ -186,31 +251,13 @@ public:
if (!UpdateVictim())
return;
if (!_roamTimer)
{
// Chase target, but don't attack - otherwise just roam around
if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 0.0f, true))
{
_roamTimer = urand(15000, 30000);
me->GetMotionMaster()->Clear(false);
me->GetMotionMaster()->MoveChase(target, 0.2f);
}
else
{
_roamTimer = 2500;
me->GetMotionMaster()->Clear(false);
me->GetMotionMaster()->MoveRandom(25.0f);
}
// Seeping fog movement is slow enough for a player to be able to walk backwards and still outpace it
me->SetWalk(true);
me->SetSpeed(MOVE_WALK, 0.75f);
}
else
_roamTimer -= diff;
_scheduler.Update(diff);
}
private:
uint32 _roamTimer;
ObjectGuid _targetGUID;
ObjectGuid _dragonGUID;
TaskScheduler _scheduler;
};
CreatureAI* GetAI(Creature* creature) const override
@@ -614,6 +661,7 @@ public:
++_stage;
}
}
void ExecuteEvent(uint32 eventId) override
{
switch (eventId)
@@ -692,6 +740,17 @@ public:
{
PrepareSpellScript(spell_dream_fog_sleep_SpellScript);
void HandleEffect(SpellEffIndex /*effIndex*/)
{
if (Unit* caster = GetCaster())
{
if (Unit* target = GetHitUnit())
{
caster->GetAI()->SetGUID(target->GetGUID(), GUID_FOG_TARGET);
}
}
}
void FilterTargets(std::list<WorldObject*>& targets)
{
targets.remove_if(Acore::UnitAuraCheck(true, SPELL_SLEEP));
@@ -699,6 +758,7 @@ public:
void Register() override
{
OnEffectHitTarget += SpellEffectFn(spell_dream_fog_sleep_SpellScript::HandleEffect, EFFECT_0, SPELL_EFFECT_APPLY_AURA);
OnObjectAreaTargetSelect += SpellObjectAreaTargetSelectFn(spell_dream_fog_sleep_SpellScript::FilterTargets, EFFECT_0, TARGET_UNIT_DEST_AREA_ENEMY);
}
};