1 files changed, 252 insertions, 0 deletions
diff --git a/src/game/MapInstanced.cpp b/src/game/MapInstanced.cpp
new file mode 100644
index 00000000000..2ff105c2f9d
--- /dev/null
+++ b/src/game/MapInstanced.cpp
@@ -0,0 +1,252 @@
+/*
+ * Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "MapInstanced.h"
+#include "ObjectMgr.h"
+#include "MapManager.h"
+#include "BattleGround.h"
+#include "VMapFactory.h"
+#include "InstanceSaveMgr.h"
+#include "World.h"
+
+MapInstanced::MapInstanced(uint32 id, time_t expiry, uint32 aInstanceId) : Map(id, expiry, 0, 0)
+{
+    // initialize instanced maps list
+    m_InstancedMaps.clear();
+    // fill with zero
+    memset(&GridMapReference, 0, MAX_NUMBER_OF_GRIDS*MAX_NUMBER_OF_GRIDS*sizeof(uint16));
+}
+
+void MapInstanced::Update(const uint32& t)
+{
+    // take care of loaded GridMaps (when unused, unload it!)
+    Map::Update(t);
+
+    // update the instanced maps
+    InstancedMaps::iterator i = m_InstancedMaps.begin();
+
+    while (i != m_InstancedMaps.end())
+    {
+        if(i->second->CanUnload(t))
+        {
+            DestroyInstance(i);                             // iterator incremented
+        }
+        else
+        {
+            // update only here, because it may schedule some bad things before delete
+            i->second->Update(t);
+            ++i;
+        }
+    }
+}
+
+void MapInstanced::MoveAllCreaturesInMoveList()
+{
+    for (InstancedMaps::iterator i = m_InstancedMaps.begin(); i != m_InstancedMaps.end(); i++)
+    {
+        i->second->MoveAllCreaturesInMoveList();
+    }
+
+    Map::MoveAllCreaturesInMoveList();
+}
+
+void MapInstanced::RemoveAllObjectsInRemoveList()
+{
+    for (InstancedMaps::iterator i = m_InstancedMaps.begin(); i != m_InstancedMaps.end(); i++)
+    {
+        i->second->RemoveAllObjectsInRemoveList();
+    }
+
+    Map::RemoveAllObjectsInRemoveList();
+}
+
+bool MapInstanced::RemoveBones(uint64 guid, float x, float y)
+{
+    bool remove_result = false;
+
+    for (InstancedMaps::iterator i = m_InstancedMaps.begin(); i != m_InstancedMaps.end(); i++)
+    {
+        remove_result = remove_result || i->second->RemoveBones(guid, x, y);
+    }
+
+    return remove_result || Map::RemoveBones(guid,x,y);
+}
+
+void MapInstanced::UnloadAll(bool pForce)
+{
+    // Unload instanced maps
+    for (InstancedMaps::iterator i = m_InstancedMaps.begin(); i != m_InstancedMaps.end(); i++)
+        i->second->UnloadAll(pForce);
+
+    // Delete the maps only after everything is unloaded to prevent crashes
+    for (InstancedMaps::iterator i = m_InstancedMaps.begin(); i != m_InstancedMaps.end(); i++)
+        delete i->second;
+
+    m_InstancedMaps.clear();
+
+    // Unload own grids (just dummy(placeholder) grids, neccesary to unload GridMaps!)
+    Map::UnloadAll(pForce);
+}
+
+/*
+- return the right instance for the object, based on its InstanceId
+- create the instance if it's not created already
+- the player is not actually added to the instance (only in InstanceMap::Add)
+*/
+Map* MapInstanced::GetInstance(const WorldObject* obj)
+{
+    uint32 CurInstanceId = obj->GetInstanceId();
+    Map* map = NULL;
+
+    if (obj->GetMapId() == GetId() && CurInstanceId != 0)
+    {
+        // the object wants to be put in a certain instance of this map
+        map = _FindMap(CurInstanceId);
+        if(!map)
+        {
+            // For players if the instanceId is set, it's assumed they are already in a map,
+            // hence the map must be loaded. For Creatures, GameObjects etc the map must exist
+            // prior to calling GetMap, they are not allowed to create maps for themselves.
+            sLog.outError("GetInstance: object %s(%d), typeId %d, in world %d, should be in map %d,%d but that's not loaded yet.", obj->GetName(), obj->GetGUIDLow(), obj->GetTypeId(), obj->IsInWorld(), obj->GetMapId(), obj->GetInstanceId());
+            assert(false);
+        }
+        return(map);
+    }
+    else
+    {
+        // instance not specified, find an existing or create a new one
+        if(obj->GetTypeId() != TYPEID_PLAYER)
+        {
+            sLog.outError("MAPINSTANCED: WorldObject '%u' (Entry: %u TypeID: %u) is in map %d,%d and requested base map instance of map %d, this must not happen", obj->GetGUIDLow(), obj->GetEntry(), obj->GetTypeId(), obj->GetMapId(), obj->GetInstanceId(), GetId());
+            assert(false);
+            return NULL;
+        }
+        else
+        {
+            uint32 NewInstanceId = 0;                       // instanceId of the resulting map
+            Player* player = (Player*)obj;
+
+            // TODO: battlegrounds and arenas
+
+            InstancePlayerBind *pBind = player->GetBoundInstance(GetId(), player->GetDifficulty());
+            InstanceSave *pSave = pBind ? pBind->save : NULL;
+
+            // the player's permanet player bind is taken into consideration first
+            // then the player's group bind and finally the solo bind.
+            if(!pBind || !pBind->perm)
+            {
+                InstanceGroupBind *groupBind = NULL;
+                Group *group = player->GetGroup();
+                // use the player's difficulty setting (it may not be the same as the group's)
+                if(group && (groupBind = group->GetBoundInstance(GetId(), player->GetDifficulty())))
+                    pSave = groupBind->save;
+            }
+
+            if(pSave)
+            {
+                // solo/perm/group
+                NewInstanceId = pSave->GetInstanceId();
+                map = _FindMap(NewInstanceId);
+                // it is possible that the save exists but the map doesn't
+                if(!map)
+                    map = CreateInstance(NewInstanceId, pSave, pSave->GetDifficulty());
+                return map;
+            }
+            else
+            {
+                // if no instanceId via group members or instance saves is found
+                // the instance will be created for the first time
+                NewInstanceId = MapManager::Instance().GenerateInstanceId();
+                return CreateInstance(NewInstanceId, NULL, player->GetDifficulty());
+            }
+        }
+    }
+}
+
+InstanceMap* MapInstanced::CreateInstance(uint32 InstanceId, InstanceSave *save, uint8 difficulty)
+{
+    // load/create a map
+    Guard guard(*this);
+
+    // make sure we have a valid map id
+    const MapEntry* entry = sMapStore.LookupEntry(GetId());
+    if(!entry)
+    {
+        sLog.outError("CreateInstance: no entry for map %d", GetId());
+        assert(false);
+    }
+    const InstanceTemplate * iTemplate = objmgr.GetInstanceTemplate(GetId());
+    if(!iTemplate)
+    {
+        sLog.outError("CreateInstance: no instance template for map %d", GetId());
+        assert(false);
+    }
+
+    // some instances only have one difficulty
+    if(!entry->SupportsHeroicMode()) difficulty = DIFFICULTY_NORMAL;
+
+    sLog.outDebug("MapInstanced::CreateInstance: %smap instance %d for %d created with difficulty %s", save?"":"new ", InstanceId, GetId(), difficulty?"heroic":"normal");
+
+    InstanceMap *map = new InstanceMap(GetId(), GetGridExpiry(), InstanceId, difficulty);
+    assert(map->IsDungeon());
+
+    bool load_data = save != NULL;
+    map->CreateInstanceData(load_data);
+
+    m_InstancedMaps[InstanceId] = map;
+    return map;
+}
+
+BattleGroundMap* MapInstanced::CreateBattleGround(uint32 InstanceId)
+{
+    // load/create a map
+    Guard guard(*this);
+
+    sLog.outDebug("MapInstanced::CreateBattleGround: map bg %d for %d created.", InstanceId, GetId());
+
+    BattleGroundMap *map = new BattleGroundMap(GetId(), GetGridExpiry(), InstanceId);
+    assert(map->IsBattleGroundOrArena());
+
+    m_InstancedMaps[InstanceId] = map;
+    return map;
+}
+
+void MapInstanced::DestroyInstance(uint32 InstanceId)
+{
+    InstancedMaps::iterator itr = m_InstancedMaps.find(InstanceId);
+    if(itr != m_InstancedMaps.end())
+        DestroyInstance(itr);
+}
+
+// increments the iterator after erase
+void MapInstanced::DestroyInstance(InstancedMaps::iterator &itr)
+{
+    itr->second->UnloadAll(true);
+    // should only unload VMaps if this is the last instance and grid unloading is enabled
+    if(m_InstancedMaps.size() <= 1 && sWorld.getConfig(CONFIG_GRID_UNLOAD))
+    {
+        VMAP::VMapFactory::createOrGetVMapManager()->unloadMap(itr->second->GetId());
+        // in that case, unload grids of the base map, too
+        // so in the next map creation, (EnsureGridCreated actually) VMaps will be reloaded
+        Map::UnloadAll(true);
+    }
+    // erase map
+    delete itr->second;
+    m_InstancedMaps.erase(itr++);
+}
+