src/game/MapManager.cpp

   1 /*
   2  * Copyright (C) 2005-2008 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 "MapManager.h"
  20 #include "InstanceSaveMgr.h"
  21 #include "Policies/SingletonImp.h"
  22 #include "Database/DatabaseEnv.h"
  23 #include "Log.h"
  24 #include "ObjectAccessor.h"
  25 #include "Transports.h"
  26 #include "GridDefines.h"
  27 #include "MapInstanced.h"
  28 #include "DestinationHolderImp.h"
  29 #include "World.h"
  30 #include "CellImpl.h"
  31 #include "Corpse.h"
  32 #include "ObjectMgr.h"
  33
  34 #define CLASS_LOCK MaNGOS::ClassLevelLockable<MapManager, ZThread::Mutex>
  35 INSTANTIATE_SINGLETON_2(MapManager, CLASS_LOCK);
  36 INSTANTIATE_CLASS_MUTEX(MapManager, ZThread::Mutex);
  37
  38 extern GridState* si_GridStates[];                          // debugging code, should be deleted some day
  39
  40 MapManager::MapManager() : i_gridCleanUpDelay(sWorld.getConfig(CONFIG_INTERVAL_GRIDCLEAN))
  41 {
  42     i_timer.SetInterval(sWorld.getConfig(CONFIG_INTERVAL_MAPUPDATE));
  43 }
  44
  45 MapManager::~MapManager()
  46 {
  47     for(MapMapType::iterator iter=i_maps.begin(); iter != i_maps.end(); ++iter)
  48         delete iter->second;
  49
  50     for(TransportSet::iterator i = m_Transports.begin(); i != m_Transports.end(); ++i)
  51         delete *i;
  52
  53     Map::DeleteStateMachine();
  54 }
  55
  56 void
  57 MapManager::Initialize()
  58 {
  59     Map::InitStateMachine();
  60
  61     // debugging code, should be deleted some day
  62     {
  63         for(int i=0;i<MAX_GRID_STATE; i++)
  64         {
  65             i_GridStates[i] = si_GridStates[i];
  66         }
  67         i_GridStateErrorCount = 0;
  68     }
  69
  70     InitMaxInstanceId();
  71 }
  72
  73 // debugging code, should be deleted some day
  74 void MapManager::checkAndCorrectGridStatesArray()
  75 {
  76     bool ok = true;
  77     for(int i=0;i<MAX_GRID_STATE; i++)
  78     {
  79         if(i_GridStates[i] != si_GridStates[i])
  80         {
  81             sLog.outError("MapManager::checkGridStates(), GridState: si_GridStates is currupt !!!");
  82             ok = false;
  83             si_GridStates[i] = i_GridStates[i];
  84         }
  85         #ifdef MANGOS_DEBUG
  86         // inner class checking only when compiled with debug
  87         if(!si_GridStates[i]->checkMagic())
  88         {
  89             ok = false;
  90             si_GridStates[i]->setMagic();
  91         }
  92         #endif
  93     }
  94     if(!ok)
  95         ++i_GridStateErrorCount;
  96     if(i_GridStateErrorCount > 2)
  97         assert(false);                                      // force a crash. Too many errors
  98 }
  99
 100 Map*
 101 MapManager::_GetBaseMap(uint32 id)
 102 {
 103     Map *m = _findMap(id);
 104
 105     if( m == NULL )
 106     {
 107         Guard guard(*this);
 108
 109         const MapEntry* entry = sMapStore.LookupEntry(id);
 110         if (entry && entry->Instanceable())
 111         {
 112             m = new MapInstanced(id, i_gridCleanUpDelay);
 113         }
 114         else
 115         {
 116             m = new Map(id, i_gridCleanUpDelay, 0, 0);
 117         }
 118         i_maps[id] = m;
 119     }
 120
 121     assert(m != NULL);
 122     return m;
 123 }
 124
 125 Map* MapManager::GetMap(uint32 id, const WorldObject* obj)
 126 {
 127     //if(!obj->IsInWorld()) sLog.outError("GetMap: called for map %d with object (typeid %d, guid %d, mapid %d, instanceid %d) who is not in world!", id, obj->GetTypeId(), obj->GetGUIDLow(), obj->GetMapId(), obj->GetInstanceId());
 128     Map *m = _GetBaseMap(id);
 129
 130     if (m && obj && m->Instanceable()) m = ((MapInstanced*)m)->GetInstance(obj);
 131
 132     return m;
 133 }
 134
 135 Map* MapManager::FindMap(uint32 mapid, uint32 instanceId)
 136 {
 137     Map *map = FindMap(mapid);
 138     if(!map) return NULL;
 139     if(!map->Instanceable()) return instanceId == 0 ? map : NULL;
 140     return ((MapInstanced*)map)->FindMap(instanceId);
 141 }
 142
 143 /*
 144     checks that do not require a map to be created
 145     will send transfer error messages on fail
 146 */
 147 bool MapManager::CanPlayerEnter(uint32 mapid, Player* player)
 148 {
 149     const MapEntry *entry = sMapStore.LookupEntry(mapid);
 150     if(!entry) return false;
 151     const char *mapName = entry->name[player->GetSession()->GetSessionDbcLocale()];
 152
 153     if(entry->map_type == MAP_INSTANCE || entry->map_type == MAP_RAID)
 154     {
 155         if (entry->map_type == MAP_RAID)
 156         {
 157             // GMs can avoid raid limitations
 158             if(!player->isGameMaster() && !sWorld.getConfig(CONFIG_INSTANCE_IGNORE_RAID))
 159             {
 160                 // can only enter in a raid group
 161                 Group* group = player->GetGroup();
 162                 if (!group || !group->isRaidGroup())
 163                 {
 164                     // probably there must be special opcode, because client has this string constant in GlobalStrings.lua
 165                     // TODO: this is not a good place to send the message
 166                     player->GetSession()->SendAreaTriggerMessage("You must be in a raid group to enter %s instance", mapName);
 167                     sLog.outDebug("MAP: Player '%s' must be in a raid group to enter instance of '%s'", player->GetName(), mapName);
 168                     return false;
 169                 }
 170             }
 171         }
 172
 173         //The player has a heroic mode and tries to enter into instance which has no a heroic mode
 174         if (!entry->SupportsHeroicMode() && player->GetDifficulty() == DIFFICULTY_HEROIC)
 175         {
 176             //Send aborted message
 177             player->SendTransferAborted(mapid, TRANSFER_ABORT_DIFFICULTY, DIFFICULTY_HEROIC);
 178             return false;
 179         }
 180
 181         if (!player->isAlive())
 182         {
 183             if(Corpse *corpse = player->GetCorpse())
 184             {
 185                 // let enter in ghost mode in instance that connected to inner instance with corpse
 186                 uint32 instance_map = corpse->GetMapId();
 187                 do
 188                 {
 189                     if(instance_map==mapid)
 190                         break;
 191
 192                     InstanceTemplate const* instance = objmgr.GetInstanceTemplate(instance_map);
 193                     instance_map = instance ? instance->parent : 0;
 194                 }
 195                 while (instance_map);
 196
 197                 if (!instance_map)
 198                 {
 199                     player->GetSession()->SendAreaTriggerMessage("You cannot enter %s while in a ghost mode", mapName);
 200                     sLog.outDebug("MAP: Player '%s' doesn't has a corpse in instance '%s' and can't enter", player->GetName(), mapName);
 201                     return false;
 202                 }
 203                 sLog.outDebug("MAP: Player '%s' has corpse in instance '%s' and can enter", player->GetName(), mapName);
 204             }
 205             else
 206             {
 207                 sLog.outDebug("Map::CanEnter - player '%s' is dead but doesn't have a corpse!", player->GetName());
 208             }
 209         }
 210
 211         // TODO: move this to a map dependent location
 212         /*if(i_data && i_data->IsEncounterInProgress())
 213         {
 214             sLog.outDebug("MAP: Player '%s' can't enter instance '%s' while an encounter is in progress.", player->GetName(), GetMapName());
 215             player->SendTransferAborted(GetId(), TRANSFER_ABORT_ZONE_IN_COMBAT);
 216             return(false);
 217         }*/
 218         return true;
 219     }
 220     else
 221         return true;
 222 }
 223
 224 void MapManager::DeleteInstance(uint32 mapid, uint32 instanceId)
 225 {
 226     Map *m = _GetBaseMap(mapid);
 227     if (m && m->Instanceable())
 228         ((MapInstanced*)m)->DestroyInstance(instanceId);
 229 }
 230
 231 void MapManager::RemoveBonesFromMap(uint32 mapid, uint64 guid, float x, float y)
 232 {
 233     bool remove_result = _GetBaseMap(mapid)->RemoveBones(guid, x, y);
 234
 235     if (!remove_result)
 236     {
 237         sLog.outDebug("Bones %u not found in world. Delete from DB also.", GUID_LOPART(guid));
 238     }
 239 }
 240
 241 void
 242 MapManager::Update(time_t diff)
 243 {
 244     i_timer.Update(diff);
 245     if( !i_timer.Passed() )
 246         return;
 247
 248     ObjectAccessor::Instance().UpdatePlayers(i_timer.GetCurrent());
 249
 250     for(MapMapType::iterator iter=i_maps.begin(); iter != i_maps.end(); ++iter)
 251     {
 252         checkAndCorrectGridStatesArray();                   // debugging code, should be deleted some day
 253         iter->second->Update(i_timer.GetCurrent());
 254     }
 255
 256     ObjectAccessor::Instance().Update(i_timer.GetCurrent());
 257     for (TransportSet::iterator iter = m_Transports.begin(); iter != m_Transports.end(); ++iter)
 258         (*iter)->Update(i_timer.GetCurrent());
 259
 260     i_timer.SetCurrent(0);
 261 }
 262
 263 void MapManager::DoDelayedMovesAndRemoves()
 264 {
 265     for(MapMapType::iterator iter=i_maps.begin(); iter != i_maps.end(); ++iter)
 266         iter->second->DoDelayedMovesAndRemoves();
 267 }
 268
 269 bool MapManager::ExistMapAndVMap(uint32 mapid, float x,float y)
 270 {
 271     GridPair p = MaNGOS::ComputeGridPair(x,y);
 272
 273     int gx=63-p.x_coord;
 274     int gy=63-p.y_coord;
 275
 276     return Map::ExistMap(mapid,gx,gy) && Map::ExistVMap(mapid,gx,gy);
 277 }
 278
 279 bool MapManager::IsValidMAP(uint32 mapid)
 280 {
 281     MapEntry const* mEntry = sMapStore.LookupEntry(mapid);
 282     return mEntry && (!mEntry->IsDungeon() || objmgr.GetInstanceTemplate(mapid));
 283     // TODO: add check for battleground template
 284 }
 285
 286 void MapManager::LoadGrid(int mapid, float x, float y, const WorldObject* obj, bool no_unload)
 287 {
 288     CellPair p = MaNGOS::ComputeCellPair(x,y);
 289     Cell cell(p);
 290     GetMap(mapid, obj)->LoadGrid(cell,no_unload);
 291 }
 292
 293 void MapManager::UnloadAll()
 294 {
 295     for(MapMapType::iterator iter=i_maps.begin(); iter != i_maps.end(); ++iter)
 296         iter->second->UnloadAll(true);
 297
 298     while(!i_maps.empty())
 299     {
 300         delete i_maps.begin()->second;
 301         i_maps.erase(i_maps.begin());
 302     }
 303 }
 304
 305 void MapManager::InitMaxInstanceId()
 306 {
 307     i_MaxInstanceId = 0;
 308
 309     QueryResult *result = CharacterDatabase.Query( "SELECT MAX(id) FROM instance" );
 310     if( result )
 311     {
 312         i_MaxInstanceId = result->Fetch()[0].GetUInt32();
 313         delete result;
 314     }
 315 }
 316
 317 uint32 MapManager::GetNumInstances()
 318 {
 319     uint32 ret = 0;
 320     for(MapMapType::iterator itr = i_maps.begin(); itr != i_maps.end(); ++itr)
 321     {
 322         Map *map = itr->second;
 323         if(!map->Instanceable()) continue;
 324         MapInstanced::InstancedMaps &maps = ((MapInstanced *)map)->GetInstancedMaps();
 325         for(MapInstanced::InstancedMaps::iterator mitr = maps.begin(); mitr != maps.end(); ++mitr)
 326             if(mitr->second->IsDungeon()) ret++;
 327     }
 328     return ret;
 329 }
 330
 331 uint32 MapManager::GetNumPlayersInInstances()
 332 {
 333     uint32 ret = 0;
 334     for(MapMapType::iterator itr = i_maps.begin(); itr != i_maps.end(); ++itr)
 335     {
 336         Map *map = itr->second;
 337         if(!map->Instanceable()) continue;
 338         MapInstanced::InstancedMaps &maps = ((MapInstanced *)map)->GetInstancedMaps();
 339         for(MapInstanced::InstancedMaps::iterator mitr = maps.begin(); mitr != maps.end(); ++mitr)
 340             if(mitr->second->IsDungeon())
 341                 ret += ((InstanceMap*)mitr->second)->GetPlayers().getSize();
 342     }
 343     return ret;
 344 }