Core/Phases: implemented new commands:

.npc set phase
.npc set phasegroup
- implemented saving creature phasing to database

src/server/game/Entities/Object/Object.cpp

@@ -1286,7 +1286,7 @@ void MovementInfo::OutDebug()
 WorldObject::WorldObject(bool isWorldObject) : WorldLocation(), LastUsedScriptID(0),
 m_name(""), m_isActive(false), m_isWorldObject(isWorldObject), m_zoneScript(NULL),
 m_transport(NULL), m_currMap(NULL), m_InstanceId(0),
-m_phaseMask(PHASEMASK_NORMAL), m_notifyflags(0), m_executed_notifies(0)
+m_phaseMask(PHASEMASK_NORMAL), _dbPhase(0), m_notifyflags(0), m_executed_notifies(0)
 {
     m_serverSideVisibility.SetValue(SERVERSIDE_VISIBILITY_GHOST, GHOST_VISIBILITY_ALIVE | GHOST_VISIBILITY_GHOST);
     m_serverSideVisibilityDetect.SetValue(SERVERSIDE_VISIBILITY_GHOST, GHOST_VISIBILITY_ALIVE);
@@ -2720,11 +2720,13 @@ void WorldObject::SetPhaseMask(uint32 newPhaseMask, bool update)
 
 void WorldObject::SetInPhase(uint32 id, bool update, bool apply)
 {
-    if (apply)
-        _phases.insert(id);
-    else
-        _phases.erase(id);
-
+    if (id)
+    {
+        if (apply)
+            _phases.insert(id);
+        else
+            _phases.erase(id);
+    }
     RebuildTerrainSwaps();
 
     if (update && IsInWorld())
@@ -2743,6 +2745,16 @@ void WorldObject::CopyPhaseFrom(WorldObject* obj, bool update)
         UpdateObjectVisibility();
 }
 
+void WorldObject::ClearPhases(bool update)
+{
+    _phases.clear();
+
+    RebuildTerrainSwaps();
+
+    if (update && IsInWorld())
+        UpdateObjectVisibility();
+}
+
 bool WorldObject::IsInPhase(WorldObject const* obj) const
 {
     // PhaseId 169 is the default fallback phase