DynamicObject.cpp

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/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "DynamicObject.h"
#include "Common.h"
#include "GameTime.h"
#include "Log.h"
#include "Map.h"
#include "ObjectAccessor.h"
#include "PhasingHandler.h"
#include "Player.h"
#include "ScriptMgr.h"
#include "SpellAuras.h"
#include "SpellInfo.h"
#include "SpellMgr.h"
#include "Transport.h"
#include "Unit.h"
#include "UpdateData.h"
 
DynamicObject::DynamicObject(bool isWorldObject) : WorldObject(isWorldObject),
 _aura(nullptr), _removedAura(nullptr), _caster(nullptr), _duration(0), _isViewpoint(false)
{
 m_objectType |= TYPEMASK_DYNAMICOBJECT;
 m_objectTypeId = TYPEID_DYNAMICOBJECT;
 
 m_updateFlag.Stationary = true;
}
 
DynamicObject::~DynamicObject()
{
 // make sure all references were properly removed
 ASSERT(!_aura);
 ASSERT(!_caster);
 ASSERT(!_isViewpoint);
 delete _removedAura;
}
 
void DynamicObject::AddToWorld()
{
 if (!IsInWorld())
 {
 GetMap()->GetObjectsStore().Insert<DynamicObject>(GetGUID(), this);
 WorldObject::AddToWorld();
 BindToCaster();
 }
}
 
void DynamicObject::RemoveFromWorld()
{
 if (IsInWorld())
 {
 if (_isViewpoint)
 RemoveCasterViewpoint();
 
 if (_aura)
 RemoveAura();
 
 // dynobj could get removed in Aura::RemoveAura
 if (!IsInWorld())
 return;
 
 UnbindFromCaster();
 WorldObject::RemoveFromWorld();
 GetMap()->GetObjectsStore().Remove<DynamicObject>(GetGUID());
 }
}
 
bool DynamicObject::CreateDynamicObject(ObjectGuid::LowType guidlow, Unit* caster, SpellInfo const* spell, Position const& pos, float radius, DynamicObjectType type, SpellCastVisual spellVisual)
{
 SetMap(caster->GetMap());
 Relocate(pos);
 if (!IsPositionValid())
 {
 TC_LOG_ERROR("misc", "DynamicObject (spell {}) not created. Suggested coordinates isn't valid (X: {} Y: {})", spell->Id, GetPositionX(), GetPositionY());
 return false;
 }
 
 WorldObject::_Create(ObjectGuid::Create<HighGuid::DynamicObject>(GetMapId(), spell->Id, guidlow));
 PhasingHandler::InheritPhaseShift(this, caster);
 
 UpdatePositionData();
 SetZoneScript();
 
 SetEntry(spell->Id);
 SetObjectScale(1.0f);
 auto dynamicObjectData = m_values.ModifyValue(&DynamicObject::m_dynamicObjectData);
 SetUpdateFieldValue(dynamicObjectData.ModifyValue(&UF::DynamicObjectData::Caster), caster->GetGUID());
 SetUpdateFieldValue(dynamicObjectData.ModifyValue(&UF::DynamicObjectData::Type), type);
 SetUpdateFieldValue(dynamicObjectData.ModifyValue(&UF::DynamicObjectData::SpellVisual).ModifyValue(&UF::SpellCastVisual::SpellXSpellVisualID), spellVisual.SpellXSpellVisualID);
 SetUpdateFieldValue(dynamicObjectData.ModifyValue(&UF::DynamicObjectData::SpellVisual).ModifyValue(&UF::SpellCastVisual::ScriptVisualID), spellVisual.ScriptVisualID);
 SetUpdateFieldValue(dynamicObjectData.ModifyValue(&UF::DynamicObjectData::SpellID), spell->Id);
 SetUpdateFieldValue(dynamicObjectData.ModifyValue(&UF::DynamicObjectData::Radius), radius);
 SetUpdateFieldValue(dynamicObjectData.ModifyValue(&UF::DynamicObjectData::CastTime), GameTime::GetGameTimeMS());
 
 if (IsStoredInWorldObjectGridContainer())
 setActive(true); //must before add to map to be put in world container
 
 TransportBase* transport = caster->GetTransport();
 if (transport)
 {
 float x, y, z, o;
 pos.GetPosition(x, y, z, o);
 transport->CalculatePassengerOffset(x, y, z, &o);
 m_movementInfo.transport.pos.Relocate(x, y, z, o);
 
 // This object must be added to transport before adding to map for the client to properly display it
 transport->AddPassenger(this);
 }
 
 if (!GetMap()->AddToMap(this))
 {
 // Returning false will cause the object to be deleted - remove from transport
 if (transport)
 transport->RemovePassenger(this);
 return false;
 }
 
 return true;
}
 
void DynamicObject::Update(uint32 p_time)
{
 // caster has to be always available and in the same map
 ASSERT(_caster);
 ASSERT(_caster->GetMap() == GetMap());
 
 bool expired = false;
 
 if (_aura)
 {
 if (!_aura->IsRemoved())
 _aura->UpdateOwner(p_time, this);
 
 // _aura may be set to null in Aura::UpdateOwner call
 if (_aura && (_aura->IsRemoved() || _aura->IsExpired()))
 expired = true;
 }
 else
 {
 if (GetDuration() > int32(p_time))
 _duration -= p_time;
 else
 expired = true;
 }
 
 if (expired)
 Remove();
 else
 sScriptMgr->OnDynamicObjectUpdate(this, p_time);
}
 
void DynamicObject::Remove()
{
 if (IsInWorld())
 AddObjectToRemoveList();
}
 
int32 DynamicObject::GetDuration() const
{
 if (!_aura)
 return _duration;
 else
 return _aura->GetDuration();
}
 
void DynamicObject::SetDuration(int32 newDuration)
{
 if (!_aura)
 _duration = newDuration;
 else
 _aura->SetDuration(newDuration);
}
 
void DynamicObject::Delay(int32 delaytime)
{
 SetDuration(GetDuration() - delaytime);
}
 
void DynamicObject::SetAura(Aura* aura)
{
 ASSERT(!_aura && aura);
 _aura = aura;
}
 
void DynamicObject::RemoveAura()
{
 ASSERT(_aura && !_removedAura);
 _removedAura = _aura;
 _aura = nullptr;
 if (!_removedAura->IsRemoved())
 _removedAura->_Remove(AURA_REMOVE_BY_DEFAULT);
}
 
void DynamicObject::SetCasterViewpoint()
{
 if (Player* caster = _caster->ToPlayer())
 {
 caster->SetViewpoint(this, true);
 _isViewpoint = true;
 }
}
 
void DynamicObject::RemoveCasterViewpoint()
{
 if (Player* caster = _caster->ToPlayer())
 {
 caster->SetViewpoint(this, false);
 _isViewpoint = false;
 }
}
 
uint32 DynamicObject::GetFaction() const
{
 ASSERT(_caster);
 return _caster->GetFaction();
}
 
void DynamicObject::BindToCaster()
{
 ASSERT(!_caster);
 _caster = ObjectAccessor::GetUnit(*this, GetCasterGUID());
 ASSERT(_caster);
 ASSERT(_caster->GetMap() == GetMap());
 _caster->_RegisterDynObject(this);
}
 
void DynamicObject::UnbindFromCaster()
{
 ASSERT(_caster);
 _caster->_UnregisterDynObject(this);
 _caster = nullptr;
}
 
SpellInfo const* DynamicObject::GetSpellInfo() const
{
 return sSpellMgr->GetSpellInfo(GetSpellId(), GetMap()->GetDifficultyID());
}
 
void DynamicObject::BuildValuesCreate(ByteBuffer* data, Player const* target) const
{
 UF::UpdateFieldFlag flags = GetUpdateFieldFlagsFor(target);
 std::size_t sizePos = data->wpos();
 *data << uint32(0);
 *data << uint8(flags);
 m_objectData->WriteCreate(*data, flags, this, target);
 m_dynamicObjectData->WriteCreate(*data, flags, this, target);
 data->put<uint32>(sizePos, data->wpos() - sizePos - 4);
}
 
void DynamicObject::BuildValuesUpdate(ByteBuffer* data, Player const* target) const
{
 UF::UpdateFieldFlag flags = GetUpdateFieldFlagsFor(target);
 std::size_t sizePos = data->wpos();
 *data << uint32(0);
 *data << uint32(m_values.GetChangedObjectTypeMask());
 
 if (m_values.HasChanged(TYPEID_OBJECT))
 m_objectData->WriteUpdate(*data, flags, this, target);
 
 if (m_values.HasChanged(TYPEID_DYNAMICOBJECT))
 m_dynamicObjectData->WriteUpdate(*data, flags, this, target);
 
 data->put<uint32>(sizePos, data->wpos() - sizePos - 4);
}
 
void DynamicObject::BuildValuesUpdateForPlayerWithMask(UpdateData* data, UF::ObjectData::Mask const& requestedObjectMask,
 UF::DynamicObjectData::Mask const& requestedDynamicObjectMask, Player const* target) const
{
 UpdateMask<NUM_CLIENT_OBJECT_TYPES> valuesMask;
 if (requestedObjectMask.IsAnySet())
 valuesMask.Set(TYPEID_OBJECT);
 
 if (requestedDynamicObjectMask.IsAnySet())
 valuesMask.Set(TYPEID_DYNAMICOBJECT);
 
 ByteBuffer& buffer = PrepareValuesUpdateBuffer(data);
 std::size_t sizePos = buffer.wpos();
 buffer << uint32(0);
 buffer << uint32(valuesMask.GetBlock(0));
 
 if (valuesMask[TYPEID_OBJECT])
 m_objectData->WriteUpdate(buffer, requestedObjectMask, true, this, target);
 
 if (valuesMask[TYPEID_DYNAMICOBJECT])
 m_dynamicObjectData->WriteUpdate(buffer, requestedDynamicObjectMask, true, this, target);
 
 buffer.put<uint32>(sizePos, buffer.wpos() - sizePos - 4);
 
 data->AddUpdateBlock();
}
 
void DynamicObject::ValuesUpdateForPlayerWithMaskSender::operator()(Player const* player) const
{
 UpdateData udata(Owner->GetMapId());
 WorldPacket packet;
 
 Owner->BuildValuesUpdateForPlayerWithMask(&udata, ObjectMask.GetChangesMask(), DynamicObjectMask.GetChangesMask(), player);
 
 udata.BuildPacket(&packet);
 player->SendDirectMessage(&packet);
}
 
void DynamicObject::ClearUpdateMask(bool remove)
{
 m_values.ClearChangesMask(&DynamicObject::m_dynamicObjectData);
 Object::ClearUpdateMask(remove);
}