173 lines
4.2 KiB
C++
173 lines
4.2 KiB
C++
/**
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* MaNGOS is a full featured server for World of Warcraft, supporting
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* the following clients: 1.12.x, 2.4.3, 3.3.5a, 4.3.4a and 5.4.8
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*
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* Copyright (C) 2005-2023 MaNGOS <https://getmangos.eu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* World of Warcraft, and all World of Warcraft or Warcraft art, images,
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* and lore are copyrighted by Blizzard Entertainment, Inc.
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*/
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#include "Camera.h"
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#include "GridNotifiersImpl.h"
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#include "CellImpl.h"
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#include "Log.h"
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#include "Errors.h"
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#include "Player.h"
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Camera::Camera(Player* pl) : m_owner(*pl), m_source(pl)
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{
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m_source->GetViewPoint().Attach(this);
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}
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Camera::~Camera()
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{
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// view of camera should be already reseted to owner (RemoveFromWorld -> Event_RemovedFromWorld -> ResetView)
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MANGOS_ASSERT(m_source == &m_owner);
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// for symmetry with constructor and way to make viewpoint's list empty
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m_source->GetViewPoint().Detach(this);
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}
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void Camera::ReceivePacket(WorldPacket* data)
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{
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m_owner.SendDirectMessage(data);
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}
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void Camera::UpdateForCurrentViewPoint()
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{
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m_gridRef.unlink();
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if (GridType* grid = m_source->GetViewPoint().m_grid)
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{
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grid->AddWorldObject(this);
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}
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UpdateVisibilityForOwner();
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}
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void Camera::SetView(WorldObject* obj, bool update_far_sight_field /*= true*/)
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{
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MANGOS_ASSERT(obj);
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if (m_source == obj)
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{
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return;
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}
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if (!m_owner.IsInMap(obj))
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{
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sLog.outError("Camera::SetView, viewpoint is not in map with camera's owner");
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return;
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}
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if (!obj->isType(TypeMask(TYPEMASK_DYNAMICOBJECT | TYPEMASK_UNIT)))
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{
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sLog.outError("Camera::SetView, viewpoint type is not available for client");
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return;
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}
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// detach and deregister from active objects if there are no more reasons to be active
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m_source->GetViewPoint().Detach(this);
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if (!m_source->IsActiveObject())
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{
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m_source->GetMap()->RemoveFromActive(m_source);
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}
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m_source = obj;
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if (!m_source->IsActiveObject())
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{
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m_source->GetMap()->AddToActive(m_source);
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}
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m_source->GetViewPoint().Attach(this);
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if (update_far_sight_field)
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{
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m_owner.SetGuidValue(PLAYER_FARSIGHT, (m_source == &m_owner ? ObjectGuid() : m_source->GetObjectGuid()));
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}
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UpdateForCurrentViewPoint();
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}
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void Camera::Event_ViewPointVisibilityChanged()
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{
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if (!m_owner.HaveAtClient(m_source))
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{
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ResetView();
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}
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}
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void Camera::ResetView(bool update_far_sight_field /*= true*/)
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{
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SetView(&m_owner, update_far_sight_field);
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}
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void Camera::Event_AddedToWorld()
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{
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GridType* grid = m_source->GetViewPoint().m_grid;
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MANGOS_ASSERT(grid);
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grid->AddWorldObject(this);
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UpdateVisibilityForOwner();
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}
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void Camera::Event_RemovedFromWorld()
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{
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if (m_source == &m_owner)
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{
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m_gridRef.unlink();
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return;
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}
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ResetView();
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}
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void Camera::Event_Moved()
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{
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m_gridRef.unlink();
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m_source->GetViewPoint().m_grid->AddWorldObject(this);
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}
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void Camera::UpdateVisibilityOf(WorldObject* target)
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{
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m_owner.UpdateVisibilityOf(m_source, target);
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}
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void Camera::UpdateVisibilityOf(WorldObject* target, UpdateData& data, std::set<WorldObject*>& vis)
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{
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m_owner.UpdateVisibilityOf(m_source, target, data, vis);
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}
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void Camera::UpdateVisibilityForOwner()
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{
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MaNGOS::VisibleNotifier notifier(*this);
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Cell::VisitAllObjects(m_source, notifier, m_source->GetMap()->GetVisibilityDistance(), false);
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notifier.Notify();
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}
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//////////////////
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ViewPoint::~ViewPoint()
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{
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if (!m_cameras.empty())
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{
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sLog.outError("ViewPoint destructor called, but some cameras referenced to it");
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}
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}
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