TemporarySummon.cpp

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/*
* This file is part of Project SkyFire https://www.projectskyfire.org.
* See LICENSE.md file for Copyright information
*/
 
#include "CreatureAI.h"
#include "Log.h"
#include "ObjectAccessor.h"
#include "ObjectMgr.h"
#include "Pet.h"
#include "Player.h"
#include "TemporarySummon.h"
 
TempSummon::TempSummon(SummonPropertiesEntry const* properties, Unit* owner, bool isWorldObject) :
    Creature(isWorldObject), m_Properties(properties), m_type(TempSummonType::TEMPSUMMON_MANUAL_DESPAWN),
    m_timer(0), m_lifetime(0), m_summonerGUID(owner ? owner->GetGUID() : 0)
{
    m_unitTypeMask |= UNIT_MASK_SUMMON;
}
 
Unit* TempSummon::GetSummoner() const
{
    return m_summonerGUID ? ObjectAccessor::GetUnit(*this, m_summonerGUID) : NULL;
}
 
Creature* TempSummon::GetSummonerCreatureBase() const
{
    return m_summonerGUID ? ObjectAccessor::GetCreature(*this, m_summonerGUID) : NULL;
}
 
void TempSummon::Update(uint32 diff)
{
    Creature::Update(diff);
 
    if (m_deathState == DeathState::DEAD)
    {
        UnSummon();
        return;
    }
    switch (m_type)
    {
        case TempSummonType::TEMPSUMMON_MANUAL_DESPAWN:
            break;
        case TempSummonType::TEMPSUMMON_TIMED_DESPAWN:
        {
            if (m_timer <= diff)
            {
                UnSummon();
                return;
            }
 
            m_timer -= diff;
            break;
        }
        case TempSummonType::TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT:
        {
            if (!IsInCombat())
            {
                if (m_timer <= diff)
                {
                    UnSummon();
                    return;
                }
 
                m_timer -= diff;
            }
            else if (m_timer != m_lifetime)
                m_timer = m_lifetime;
 
            break;
        }
 
        case TempSummonType::TEMPSUMMON_CORPSE_TIMED_DESPAWN:
        {
            if (m_deathState == DeathState::CORPSE)
            {
                if (m_timer <= diff)
                {
                    UnSummon();
                    return;
                }
 
                m_timer -= diff;
            }
            break;
        }
        case TempSummonType::TEMPSUMMON_CORPSE_DESPAWN:
        {
            // if m_deathState is DEAD, CORPSE was skipped
            if (m_deathState == DeathState::CORPSE || m_deathState == DeathState::DEAD)
            {
                UnSummon();
                return;
            }
 
            break;
        }
        case TempSummonType::TEMPSUMMON_DEAD_DESPAWN:
        {
            if (m_deathState == DeathState::DEAD)
            {
                UnSummon();
                return;
            }
            break;
        }
        case TempSummonType::TEMPSUMMON_TIMED_OR_CORPSE_DESPAWN:
        {
            // if m_deathState is DEAD, CORPSE was skipped
            if (m_deathState == DeathState::CORPSE || m_deathState == DeathState::DEAD)
            {
                UnSummon();
                return;
            }
 
            if (!IsInCombat())
            {
                if (m_timer <= diff)
                {
                    UnSummon();
                    return;
                }
                else
                    m_timer -= diff;
            }
            else if (m_timer != m_lifetime)
                m_timer = m_lifetime;
            break;
        }
        case TempSummonType::TEMPSUMMON_TIMED_OR_DEAD_DESPAWN:
        {
            // if m_deathState is DEAD, CORPSE was skipped
            if (m_deathState == DeathState::DEAD)
            {
                UnSummon();
                return;
            }
 
            if (!IsInCombat() && IsAlive())
            {
                if (m_timer <= diff)
                {
                    UnSummon();
                    return;
                }
                else
                    m_timer -= diff;
            }
            else if (m_timer != m_lifetime)
                m_timer = m_lifetime;
            break;
        }
        default:
            UnSummon();
            SF_LOG_ERROR("entities.unit", "Temporary summoned creature (entry: %u) have unknown type %u of ", GetEntry(), uint32(m_type));
            break;
    }
}
 
void TempSummon::InitStats(uint32 duration)
{
    ASSERT(!IsPet());
 
    m_timer = duration;
    m_lifetime = duration;
 
    if (m_type == TempSummonType::TEMPSUMMON_MANUAL_DESPAWN)
        m_type = (duration == 0) ? TempSummonType::TEMPSUMMON_DEAD_DESPAWN : TempSummonType::TEMPSUMMON_TIMED_DESPAWN;
 
    Unit* owner = GetSummoner();
 
    if (owner && IsTrigger() && m_spells[0])
    {
        setFaction(owner->getFaction());
        SetLevel(owner->getLevel());
        if (owner->GetTypeId() == TypeID::TYPEID_PLAYER)
            m_ControlledByPlayer = true;
    }
 
    if (!m_Properties)
        return;
 
    if (owner)
    {
        int32 slot = m_Properties->Slot;
        if (slot > 0)
        {
            if (owner->m_SummonSlot[slot] && owner->m_SummonSlot[slot] != GetGUID())
            {
                Creature* oldSummon = GetMap()->GetCreature(owner->m_SummonSlot[slot]);
                if (oldSummon && oldSummon->IsSummon())
                    oldSummon->ToTempSummon()->UnSummon();
            }
            owner->m_SummonSlot[slot] = GetGUID();
        }
    }
 
    if (m_Properties->Faction)
        setFaction(m_Properties->Faction);
    else if (IsVehicle() && owner) // properties should be vehicle
        setFaction(owner->getFaction());
}
 
void TempSummon::InitSummon()
{
    Unit* owner = GetSummoner();
    if (owner)
    {
        if (owner->GetTypeId() == TypeID::TYPEID_UNIT && owner->ToCreature()->IsAIEnabled)
            owner->ToCreature()->AI()->JustSummoned(this);
        if (IsAIEnabled)
            AI()->IsSummonedBy(owner);
    }
}
 
void TempSummon::SetTempSummonType(TempSummonType type)
{
    m_type = type;
}
 
void TempSummon::UnSummon(uint32 msTime)
{
    if (msTime)
    {
        ForcedUnsummonDelayEvent* pEvent = new ForcedUnsummonDelayEvent(*this);
 
        m_Events.AddEvent(pEvent, m_Events.CalculateTime(msTime));
        return;
    }
 
    //ASSERT(!IsPet());
    if (IsPet())
    {
        ((Pet*)this)->Remove(PET_SAVE_NOT_IN_SLOT);
        ASSERT(!IsInWorld());
        return;
    }
 
    Unit* owner = GetSummoner();
    if (owner && owner->GetTypeId() == TypeID::TYPEID_UNIT && owner->ToCreature()->IsAIEnabled)
        owner->ToCreature()->AI()->SummonedCreatureDespawn(this);
 
    AddObjectToRemoveList();
}
 
bool ForcedUnsummonDelayEvent::Execute(uint64 /*e_time*/, uint32 /*p_time*/)
{
    m_owner.UnSummon();
    return true;
}
 
void TempSummon::RemoveFromWorld()
{
    if (!IsInWorld())
        return;
 
    if (m_Properties)
    {
        int32 slot = m_Properties->Slot;
        if (slot > 0)
            if (Unit* owner = GetSummoner())
                if (owner->m_SummonSlot[slot] == GetGUID())
                    owner->m_SummonSlot[slot] = 0;
    }
 
    //if (GetOwnerGUID())
    //    SF_LOG_ERROR("entities.unit", "Unit %u has owner guid when removed from world", GetEntry());
 
    Creature::RemoveFromWorld();
}
 
Minion::Minion(SummonPropertiesEntry const* properties, Unit* owner, bool isWorldObject)
    : TempSummon(properties, owner, isWorldObject), m_owner(owner)
{
    ASSERT(m_owner);
    m_unitTypeMask |= UNIT_MASK_MINION;
    m_followAngle = PET_FOLLOW_ANGLE;
    InitCharmInfo();
}
 
void Minion::InitStats(uint32 duration)
{
    TempSummon::InitStats(duration);
 
    SetReactState(REACT_PASSIVE);
 
    SetCreatorGUID(GetOwner()->GetGUID());
    setFaction(GetOwner()->getFaction());
 
    GetOwner()->SetMinion(this, true);
}
 
void Minion::RemoveFromWorld()
{
    if (!IsInWorld())
        return;
 
    GetOwner()->SetMinion(this, false);
    TempSummon::RemoveFromWorld();
}
 
bool Minion::IsGuardianPet() const
{
    return IsPet() || (m_Properties && m_Properties->Category == SUMMON_CATEGORY_PET);
}
 
Guardian::Guardian(SummonPropertiesEntry const* properties, Unit* owner, bool isWorldObject) : Minion(properties, owner, isWorldObject), m_bonusSpellDamage(0)
{
    memset(m_statFromOwner, 0, sizeof(float) * MAX_STATS);
    m_unitTypeMask |= UNIT_MASK_GUARDIAN;
    if (properties && properties->Type == SUMMON_TYPE_PET)
    {
        m_unitTypeMask |= UNIT_MASK_CONTROLABLE_GUARDIAN;
        InitCharmInfo();
    }
}
 
void Guardian::InitStats(uint32 duration)
{
    Minion::InitStats(duration);
 
    InitStatsForLevel(GetOwner()->getLevel());
 
    if (GetOwner()->GetTypeId() == TypeID::TYPEID_PLAYER && HasUnitTypeMask(UNIT_MASK_CONTROLABLE_GUARDIAN))
        m_charmInfo->InitCharmCreateSpells();
 
    SetReactState(REACT_AGGRESSIVE);
}
 
void Guardian::InitSummon()
{
    TempSummon::InitSummon();
 
    if (GetOwner()->GetTypeId() == TypeID::TYPEID_PLAYER
        && GetOwner()->GetMinionGUID() == GetGUID()
        && !GetOwner()->GetCharmGUID())
    {
        GetOwner()->ToPlayer()->CharmSpellInitialize();
    }
}
 
Puppet::Puppet(SummonPropertiesEntry const* properties, Unit* owner)
    : Minion(properties, owner, false) //maybe true?
{
    ASSERT(m_owner->GetTypeId() == TypeID::TYPEID_PLAYER);
    m_unitTypeMask |= UNIT_MASK_PUPPET;
}
 
void Puppet::InitStats(uint32 duration)
{
    Minion::InitStats(duration);
    SetLevel(GetOwner()->getLevel());
    SetReactState(REACT_PASSIVE);
}
 
void Puppet::InitSummon()
{
    Minion::InitSummon();
    if (!SetCharmedBy(GetOwner(), CHARM_TYPE_POSSESS))
        ASSERT(false);
}
 
void Puppet::Update(uint32 time)
{
    Minion::Update(time);
    //check if caster is channelling?
    if (IsInWorld())
    {
        if (!IsAlive())
        {
            UnSummon();
        }
    }
}
 
void Puppet::RemoveFromWorld()
{
    if (!IsInWorld())
        return;
 
    RemoveCharmedBy(NULL);
    Minion::RemoveFromWorld();
}