src/game/DynamicObject.cpp

   1 /*
   2  * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include "Common.h"
  20 #include "UpdateMask.h"
  21 #include "Opcodes.h"
  22 #include "World.h"
  23 #include "ObjectAccessor.h"
  24 #include "Database/DatabaseEnv.h"
  25 #include "GridNotifiers.h"
  26 #include "CellImpl.h"
  27 #include "GridNotifiersImpl.h"
  28 #include "SpellMgr.h"
  29
  30 DynamicObject::DynamicObject() : WorldObject(), m_isActiveObject(false)
  31 {
  32     m_objectType |= TYPEMASK_DYNAMICOBJECT;
  33     m_objectTypeId = TYPEID_DYNAMICOBJECT;
  34
  35     m_updateFlag = (UPDATEFLAG_HIGHGUID | UPDATEFLAG_HAS_POSITION);
  36
  37     m_valuesCount = DYNAMICOBJECT_END;
  38 }
  39
  40 void DynamicObject::AddToWorld()
  41 {
  42     ///- Register the dynamicObject for guid lookup
  43     if(!IsInWorld())
  44         ObjectAccessor::Instance().AddObject(this);
  45
  46     Object::AddToWorld();
  47 }
  48
  49 void DynamicObject::RemoveFromWorld()
  50 {
  51     ///- Remove the dynamicObject from the accessor
  52     if(IsInWorld())
  53         ObjectAccessor::Instance().RemoveObject(this);
  54
  55     Object::RemoveFromWorld();
  56 }
  57
  58 bool DynamicObject::Create( uint32 guidlow, Unit *caster, uint32 spellId, uint32 effIndex, float x, float y, float z, int32 duration, float radius )
  59 {
  60     WorldObject::_Create(guidlow, HIGHGUID_DYNAMICOBJECT, caster->GetPhaseMask());
  61     SetMap(caster->GetMap());
  62     Relocate(x, y, z, 0);
  63
  64     if(!IsPositionValid())
  65     {
  66         sLog.outError("DynamicObject (spell %u eff %u) not created. Suggested coordinates isn't valid (X: %f Y: %f)",spellId,effIndex,GetPositionX(),GetPositionY());
  67         return false;
  68     }
  69
  70     SetEntry(spellId);
  71     SetFloatValue( OBJECT_FIELD_SCALE_X, 1 );
  72     SetUInt64Value( DYNAMICOBJECT_CASTER, caster->GetGUID() );
  73     SetUInt32Value( DYNAMICOBJECT_BYTES, 0x00000001 );
  74     SetUInt32Value( DYNAMICOBJECT_SPELLID, spellId );
  75     SetFloatValue( DYNAMICOBJECT_RADIUS, radius);
  76     SetFloatValue( DYNAMICOBJECT_POS_X, x );
  77     SetFloatValue( DYNAMICOBJECT_POS_Y, y );
  78     SetFloatValue( DYNAMICOBJECT_POS_Z, z );
  79     SetUInt32Value( DYNAMICOBJECT_CASTTIME, getMSTime() );  // new 2.4.0
  80
  81     m_aliveDuration = duration;
  82     m_radius = radius;
  83     m_effIndex = effIndex;
  84     m_spellId = spellId;
  85
  86     // set to active for far sight case
  87     if(SpellEntry const* spellEntry = sSpellStore.LookupEntry(spellId))
  88         m_isActiveObject = IsSpellHaveEffect(spellEntry,SPELL_EFFECT_ADD_FARSIGHT);
  89
  90     return true;
  91 }
  92
  93 Unit* DynamicObject::GetCaster() const
  94 {
  95     // can be not found in some cases
  96     return ObjectAccessor::GetUnit(*this, GetCasterGUID());
  97 }
  98
  99 void DynamicObject::Update(uint32 p_time)
 100 {
 101     // caster can be not in world at time dynamic object update, but dynamic object not yet deleted in Unit destructor
 102     Unit* caster = GetCaster();
 103     if(!caster)
 104     {
 105         Delete();
 106         return;
 107     }
 108
 109     bool deleteThis = false;
 110
 111     if(m_aliveDuration > int32(p_time))
 112         m_aliveDuration -= p_time;
 113     else
 114         deleteThis = true;
 115
 116     // have radius and work as persistent effect
 117     if(m_radius)
 118     {
 119         // TODO: make a timer and update this in larger intervals
 120         CellPair p(MaNGOS::ComputeCellPair(GetPositionX(), GetPositionY()));
 121         Cell cell(p);
 122         cell.data.Part.reserved = ALL_DISTRICT;
 123         cell.SetNoCreate();
 124
 125         MaNGOS::DynamicObjectUpdater notifier(*this, caster);
 126
 127         TypeContainerVisitor<MaNGOS::DynamicObjectUpdater, WorldTypeMapContainer > world_object_notifier(notifier);
 128         TypeContainerVisitor<MaNGOS::DynamicObjectUpdater, GridTypeMapContainer > grid_object_notifier(notifier);
 129
 130         CellLock<GridReadGuard> cell_lock(cell, p);
 131         cell_lock->Visit(cell_lock, world_object_notifier, *GetMap());
 132         cell_lock->Visit(cell_lock, grid_object_notifier,  *GetMap());
 133     }
 134
 135     if(deleteThis)
 136     {
 137         caster->RemoveDynObjectWithGUID(GetGUID());
 138         Delete();
 139     }
 140 }
 141
 142 void DynamicObject::Delete()
 143 {
 144     SendObjectDeSpawnAnim(GetGUID());
 145     AddObjectToRemoveList();
 146 }
 147
 148 void DynamicObject::Delay(int32 delaytime)
 149 {
 150     m_aliveDuration -= delaytime;
 151     for(AffectedSet::iterator iunit= m_affected.begin(); iunit != m_affected.end(); ++iunit)
 152         if (*iunit)
 153             (*iunit)->DelayAura(m_spellId, m_effIndex, delaytime);
 154 }
 155
 156 bool DynamicObject::isVisibleForInState(Player const* u, WorldObject const* viewPoint, bool inVisibleList) const
 157 {
 158     if(!IsInWorld() || !u->IsInWorld())
 159         return false;
 160
 161     // always seen by owner
 162     if(GetCasterGUID()==u->GetGUID())
 163         return true;
 164
 165     // normal case
 166     return IsWithinDistInMap(viewPoint, World::GetMaxVisibleDistanceForObject() + (inVisibleList ? World::GetVisibleObjectGreyDistance() : 0.0f), false);
 167 }