[10052] Camera System

(based on SilverIce's repo commit 4f2f4ab + next 3 more) Signed-off-by: VladimirMangos <vladimir@getmangos.com>
2025-12-23 16:37:03 +00:00 · 2010-06-12 05:00:09 +04:00 · 2010-06-12 05:00:09 +04:00 · e427ce80cc
commit e427ce80cc
parent f520c9b1e0
27 changed files with 515 additions and 207 deletions
--- a/src/game/Camera.cpp
+++ b/src/game/Camera.cpp
@ -0,0 +1,134 @@
+#include "Camera.h"
+#include "GridNotifiersImpl.h"
+#include "CellImpl.h"
+#include "Log.h"
+#include "Errors.h"
+#include "Player.h"
+
+Camera::Camera(Player* pl) : m_owner(*pl), m_source(pl)
+{
+    m_source->GetViewPoint().Attach(this);
+}
+
+Camera::~Camera()
+{
+    // view of camera should be already reseted to owner (RemoveFromWorld -> Event_RemovedFromWorld -> ResetView)
+    ASSERT(m_source == &m_owner);	
+
+    // for symmetry with constructor and way to make viewpoint's list empty
+    m_source->GetViewPoint().Detach(this);
+}
+
+void Camera::ReceivePacket(WorldPacket *data)
+{
+    m_owner.SendDirectMessage(data);
+}
+
+void Camera::UpdateForCurrentViewPoint()
+{
+    m_gridRef.unlink();
+
+    if (GridType* grid = m_source->GetViewPoint().m_grid)
+        grid->AddWorldObject(this);
+
+    m_owner.SetUInt64Value(PLAYER_FARSIGHT, (m_source == &m_owner ? 0 : m_source->GetGUID()));
+    UpdateVisibilityForOwner();
+}
+
+void Camera::SetView(WorldObject *obj)
+{
+    ASSERT(obj);
+
+    if (!m_owner.IsInMap(obj))
+    {
+        sLog.outError("Camera::SetView, viewpoint is not in map with camera's owner");
+        return;
+    }
+
+    if (!obj->isType(TYPEMASK_DYNAMICOBJECT | TYPEMASK_UNIT))
+    {
+        sLog.outError("Camera::SetView, viewpoint type is not available for client");
+        return;
+    }
+
+    m_source->GetViewPoint().Detach(this);
+    m_source = obj;
+    m_source->GetViewPoint().Attach(this);
+
+    UpdateForCurrentViewPoint();
+}
+
+void Camera::Event_ViewPointVisibilityChanged()
+{
+    if (!m_owner.HaveAtClient(m_source))
+        ResetView();
+}
+
+void Camera::ResetView()
+{
+    m_source->GetViewPoint().Detach(this);
+    m_source = &m_owner;
+    m_source->GetViewPoint().Attach(this);
+
+    UpdateForCurrentViewPoint();
+}
+
+void Camera::Event_AddedToWorld()
+{
+    GridType* grid = m_source->GetViewPoint().m_grid;
+    ASSERT(grid);
+    grid->AddWorldObject(this);
+
+    UpdateVisibilityForOwner();
+}
+
+void Camera::Event_RemovedFromWorld()
+{
+    if (m_source == &m_owner)
+    {
+        m_gridRef.unlink();
+        return;
+    }
+
+    ResetView();
+}
+
+void Camera::Event_Moved()
+{
+    m_gridRef.unlink();
+    m_source->GetViewPoint().m_grid->AddWorldObject(this);
+}
+
+void Camera::UpdateVisibilityOf(WorldObject* target)
+{
+    m_owner.UpdateVisibilityOf(m_source, target);
+}
+
+template<class T>
+void Camera::UpdateVisibilityOf(T * target, UpdateData &data, std::set<WorldObject*>& vis)
+{
+    m_owner.template UpdateVisibilityOf<T>(m_source, target,data,vis);
+}
+
+template void Camera::UpdateVisibilityOf(Player*        , UpdateData& , std::set<WorldObject*>& );
+template void Camera::UpdateVisibilityOf(Creature*      , UpdateData& , std::set<WorldObject*>& );
+template void Camera::UpdateVisibilityOf(Corpse*        , UpdateData& , std::set<WorldObject*>& );
+template void Camera::UpdateVisibilityOf(GameObject*    , UpdateData& , std::set<WorldObject*>& );
+template void Camera::UpdateVisibilityOf(DynamicObject* , UpdateData& , std::set<WorldObject*>& );
+
+void Camera::UpdateVisibilityForOwner()
+{
+    MaNGOS::VisibleNotifier notifier(*this);
+    Cell::VisitAllObjects(m_source, notifier, m_source->GetMap()->GetVisibilityDistance(), false);
+    notifier.Notify();
+}
+
+//////////////////
+
+ViewPoint::~ViewPoint()
+{
+    if (!m_cameras.empty())
+    {
+        sLog.outError("ViewPoint destructor called, but some cameras referenced to it");
+    }
+}