src/game/GridNotifiers.h

   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 #ifndef MANGOS_GRIDNOTIFIERS_H
  20 #define MANGOS_GRIDNOTIFIERS_H
  21
  22 #include "ObjectGridLoader.h"
  23 #include "ByteBuffer.h"
  24 #include "UpdateData.h"
  25 #include <iostream>
  26
  27 #include "Corpse.h"
  28 #include "Object.h"
  29 #include "DynamicObject.h"
  30 #include "GameObject.h"
  31 #include "Player.h"
  32 #include "Unit.h"
  33
  34 class Player;
  35 //class Map;
  36
  37 namespace MaNGOS
  38 {
  39
  40     struct MANGOS_DLL_DECL PlayerNotifier
  41     {
  42         explicit PlayerNotifier(Player &pl) : i_player(pl) {}
  43         void Visit(PlayerMapType &);
  44         template<class SKIP> void Visit(GridRefManager<SKIP> &) {}
  45         Player &i_player;
  46     };
  47
  48     struct MANGOS_DLL_DECL VisibleNotifier
  49     {
  50         Player &i_player;
  51         UpdateData i_data;
  52         UpdateDataMapType i_data_updates;
  53         Player::ClientGUIDs i_clientGUIDs;
  54         std::set<WorldObject*> i_visibleNow;
  55
  56         explicit VisibleNotifier(Player &player) : i_player(player),i_clientGUIDs(player.m_clientGUIDs) {}
  57         template<class T> void Visit(GridRefManager<T> &m);
  58         void Visit(PlayerMapType &);
  59         void Notify(void);
  60     };
  61
  62     struct MANGOS_DLL_DECL VisibleChangesNotifier
  63     {
  64         WorldObject &i_object;
  65
  66         explicit VisibleChangesNotifier(WorldObject &object) : i_object(object) {}
  67         template<class T> void Visit(GridRefManager<T> &) {}
  68         void Visit(PlayerMapType &);
  69     };
  70
  71     struct MANGOS_DLL_DECL GridUpdater
  72     {
  73         GridType &i_grid;
  74         uint32 i_timeDiff;
  75         GridUpdater(GridType &grid, uint32 diff) : i_grid(grid), i_timeDiff(diff) {}
  76
  77         template<class T> void updateObjects(GridRefManager<T> &m)
  78         {
  79             for(typename GridRefManager<T>::iterator iter = m.begin(); iter != m.end(); ++iter)
  80                 iter->getSource()->Update(i_timeDiff);
  81         }
  82
  83         void Visit(PlayerMapType &m) { updateObjects<Player>(m); }
  84         void Visit(CreatureMapType &m){ updateObjects<Creature>(m); }
  85         void Visit(GameObjectMapType &m) { updateObjects<GameObject>(m); }
  86         void Visit(DynamicObjectMapType &m) { updateObjects<DynamicObject>(m); }
  87         void Visit(CorpseMapType &m) { updateObjects<Corpse>(m); }
  88     };
  89
  90     struct MANGOS_DLL_DECL MessageDeliverer
  91     {
  92         Player &i_player;
  93         WorldPacket *i_message;
  94         bool i_toSelf;
  95         MessageDeliverer(Player &pl, WorldPacket *msg, bool to_self) : i_player(pl), i_message(msg), i_toSelf(to_self) {}
  96         void Visit(PlayerMapType &m);
  97         template<class SKIP> void Visit(GridRefManager<SKIP> &) {}
  98     };
  99
 100     struct MANGOS_DLL_DECL ObjectMessageDeliverer
 101     {
 102         uint32 i_phaseMask;
 103         WorldPacket *i_message;
 104         explicit ObjectMessageDeliverer(WorldObject& obj, WorldPacket *msg)
 105             : i_phaseMask(obj.GetPhaseMask()), i_message(msg) {}
 106         void Visit(PlayerMapType &m);
 107         template<class SKIP> void Visit(GridRefManager<SKIP> &) {}
 108     };
 109
 110     struct MANGOS_DLL_DECL MessageDistDeliverer
 111     {
 112         Player &i_player;
 113         WorldPacket *i_message;
 114         bool i_toSelf;
 115         bool i_ownTeamOnly;
 116         float i_dist;
 117
 118         MessageDistDeliverer(Player &pl, WorldPacket *msg, float dist, bool to_self, bool ownTeamOnly)
 119             : i_player(pl), i_message(msg), i_toSelf(to_self), i_ownTeamOnly(ownTeamOnly), i_dist(dist) {}
 120         void Visit(PlayerMapType &m);
 121         template<class SKIP> void Visit(GridRefManager<SKIP> &) {}
 122     };
 123
 124     struct MANGOS_DLL_DECL ObjectMessageDistDeliverer
 125     {
 126         WorldObject &i_object;
 127         WorldPacket *i_message;
 128         float i_dist;
 129         ObjectMessageDistDeliverer(WorldObject &obj, WorldPacket *msg, float dist) : i_object(obj), i_message(msg), i_dist(dist) {}
 130         void Visit(PlayerMapType &m);
 131         template<class SKIP> void Visit(GridRefManager<SKIP> &) {}
 132     };
 133
 134     struct MANGOS_DLL_DECL ObjectUpdater
 135     {
 136         uint32 i_timeDiff;
 137         explicit ObjectUpdater(const uint32 &diff) : i_timeDiff(diff) {}
 138         template<class T> void Visit(GridRefManager<T> &m);
 139         void Visit(PlayerMapType &) {}
 140         void Visit(CorpseMapType &) {}
 141         void Visit(CreatureMapType &);
 142     };
 143
 144     template<class T>
 145         struct MANGOS_DLL_DECL ObjectAccessorNotifier
 146     {
 147         T *& i_object;
 148
 149         uint64 i_id;
 150         ObjectAccessorNotifier(T * &obj, uint64 id) : i_object(obj), i_id(id)
 151         {
 152             i_object = NULL;
 153         }
 154
 155         void Visit(GridRefManager<T> &m )
 156         {
 157             if( i_object == NULL )
 158             {
 159                 GridRefManager<T> *iter = m.find(i_id);
 160                 if( iter != m.end() )
 161                 {
 162                     assert( iter->second != NULL );
 163                     i_object = iter->second;
 164                 }
 165             }
 166         }
 167
 168         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 169     };
 170
 171     struct MANGOS_DLL_DECL PlayerRelocationNotifier
 172     {
 173         Player &i_player;
 174         PlayerRelocationNotifier(Player &pl) : i_player(pl) {}
 175         template<class T> void Visit(GridRefManager<T> &) {}
 176         void Visit(PlayerMapType &);
 177         void Visit(CreatureMapType &);
 178     };
 179
 180     struct MANGOS_DLL_DECL CreatureRelocationNotifier
 181     {
 182         Creature &i_creature;
 183         CreatureRelocationNotifier(Creature &c) : i_creature(c) {}
 184         template<class T> void Visit(GridRefManager<T> &) {}
 185         #ifdef WIN32
 186         template<> void Visit(PlayerMapType &);
 187         #endif
 188     };
 189
 190     struct MANGOS_DLL_DECL DynamicObjectUpdater
 191     {
 192         DynamicObject &i_dynobject;
 193         Unit* i_check;
 194         DynamicObjectUpdater(DynamicObject &dynobject, Unit* caster) : i_dynobject(dynobject)
 195         {
 196             i_check = caster;
 197             Unit* owner = i_check->GetOwner();
 198             if(owner)
 199                 i_check = owner;
 200         }
 201
 202         template<class T> inline void Visit(GridRefManager<T>  &) {}
 203         #ifdef WIN32
 204         template<> inline void Visit<Player>(PlayerMapType &);
 205         template<> inline void Visit<Creature>(CreatureMapType &);
 206         #endif
 207
 208         void VisitHelper(Unit* target);
 209     };
 210
 211     // SEARCHERS & LIST SEARCHERS & WORKERS
 212
 213     // WorldObject searchers & workers
 214
 215     template<class Check>
 216         struct MANGOS_DLL_DECL WorldObjectSearcher
 217     {
 218         uint32 i_phaseMask;
 219         WorldObject* &i_object;
 220         Check &i_check;
 221
 222         WorldObjectSearcher(WorldObject const* searcher, WorldObject* & result, Check& check)
 223             : i_phaseMask(searcher->GetPhaseMask()), i_object(result),i_check(check) {}
 224
 225         void Visit(GameObjectMapType &m);
 226         void Visit(PlayerMapType &m);
 227         void Visit(CreatureMapType &m);
 228         void Visit(CorpseMapType &m);
 229         void Visit(DynamicObjectMapType &m);
 230
 231         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 232     };
 233
 234     template<class Check>
 235         struct MANGOS_DLL_DECL WorldObjectListSearcher
 236     {
 237         uint32 i_phaseMask;
 238         std::list<WorldObject*> &i_objects;
 239         Check& i_check;
 240
 241         WorldObjectListSearcher(WorldObject const* searcher, std::list<WorldObject*> &objects, Check & check)
 242             : i_phaseMask(searcher->GetPhaseMask()), i_objects(objects),i_check(check) {}
 243
 244         void Visit(PlayerMapType &m);
 245         void Visit(CreatureMapType &m);
 246         void Visit(CorpseMapType &m);
 247         void Visit(GameObjectMapType &m);
 248         void Visit(DynamicObjectMapType &m);
 249
 250         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 251     };
 252
 253     template<class Do>
 254         struct MANGOS_DLL_DECL WorldObjectWorker
 255     {
 256         uint32 i_phaseMask;
 257         Do const& i_do;
 258
 259         WorldObjectWorker(WorldObject const* searcher, Do const& _do)
 260             : i_phaseMask(searcher->GetPhaseMask()), i_do(_do) {}
 261
 262         void Visit(GameObjectMapType &m)
 263         {
 264             for(GameObjectMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
 265                 if(itr->getSource()->InSamePhase(i_phaseMask))
 266                     i_do(itr->getSource());
 267         }
 268
 269         void Visit(PlayerMapType &m)
 270         {
 271             for(PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
 272                 if(itr->getSource()->InSamePhase(i_phaseMask))
 273                     i_do(itr->getSource());
 274         }
 275         void Visit(CreatureMapType &m)
 276         {
 277             for(CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
 278                 if(itr->getSource()->InSamePhase(i_phaseMask))
 279                     i_do(itr->getSource());
 280         }
 281
 282         void Visit(CorpseMapType &m)
 283         {
 284             for(CorpseMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
 285                 if(itr->getSource()->InSamePhase(i_phaseMask))
 286                     i_do(itr->getSource());
 287         }
 288
 289         void Visit(DynamicObjectMapType &m)
 290         {
 291             for(DynamicObjectMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
 292                 if(itr->getSource()->InSamePhase(i_phaseMask))
 293                     i_do(itr->getSource());
 294         }
 295
 296         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 297     };
 298
 299     // Gameobject searchers
 300
 301     template<class Check>
 302         struct MANGOS_DLL_DECL GameObjectSearcher
 303     {
 304         uint32 i_phaseMask;
 305         GameObject* &i_object;
 306         Check &i_check;
 307
 308         GameObjectSearcher(WorldObject const* searcher, GameObject* & result, Check& check)
 309             : i_phaseMask(searcher->GetPhaseMask()), i_object(result),i_check(check) {}
 310
 311         void Visit(GameObjectMapType &m);
 312
 313         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 314     };
 315
 316     // Last accepted by Check GO if any (Check can change requirements at each call)
 317     template<class Check>
 318         struct MANGOS_DLL_DECL GameObjectLastSearcher
 319     {
 320         uint32 i_phaseMask;
 321         GameObject* &i_object;
 322         Check& i_check;
 323
 324         GameObjectLastSearcher(WorldObject const* searcher, GameObject* & result, Check& check)
 325             : i_phaseMask(searcher->GetPhaseMask()), i_object(result), i_check(check) {}
 326
 327         void Visit(GameObjectMapType &m);
 328
 329         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 330     };
 331
 332     template<class Check>
 333         struct MANGOS_DLL_DECL GameObjectListSearcher
 334     {
 335         uint32 i_phaseMask;
 336         std::list<GameObject*> &i_objects;
 337         Check& i_check;
 338
 339         GameObjectListSearcher(WorldObject const* searcher, std::list<GameObject*> &objects, Check & check)
 340             : i_phaseMask(searcher->GetPhaseMask()), i_objects(objects), i_check(check) {}
 341
 342         void Visit(GameObjectMapType &m);
 343
 344         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 345     };
 346
 347     // Unit searchers
 348
 349     // First accepted by Check Unit if any
 350     template<class Check>
 351         struct MANGOS_DLL_DECL UnitSearcher
 352     {
 353         uint32 i_phaseMask;
 354         Unit* &i_object;
 355         Check & i_check;
 356
 357         UnitSearcher(WorldObject const* searcher, Unit* & result, Check & check)
 358             : i_phaseMask(searcher->GetPhaseMask()), i_object(result),i_check(check) {}
 359
 360         void Visit(CreatureMapType &m);
 361         void Visit(PlayerMapType &m);
 362
 363         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 364     };
 365
 366     // Last accepted by Check Unit if any (Check can change requirements at each call)
 367     template<class Check>
 368         struct MANGOS_DLL_DECL UnitLastSearcher
 369     {
 370         uint32 i_phaseMask;
 371         Unit* &i_object;
 372         Check & i_check;
 373
 374         UnitLastSearcher(WorldObject const* searcher, Unit* & result, Check & check)
 375             : i_phaseMask(searcher->GetPhaseMask()), i_object(result),i_check(check) {}
 376
 377         void Visit(CreatureMapType &m);
 378         void Visit(PlayerMapType &m);
 379
 380         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 381     };
 382
 383     // All accepted by Check units if any
 384     template<class Check>
 385         struct MANGOS_DLL_DECL UnitListSearcher
 386     {
 387         uint32 i_phaseMask;
 388         std::list<Unit*> &i_objects;
 389         Check& i_check;
 390
 391         UnitListSearcher(WorldObject const* searcher, std::list<Unit*> &objects, Check & check)
 392             : i_phaseMask(searcher->GetPhaseMask()), i_objects(objects),i_check(check) {}
 393
 394         void Visit(PlayerMapType &m);
 395         void Visit(CreatureMapType &m);
 396
 397         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 398     };
 399
 400     // Creature searchers
 401
 402     template<class Check>
 403         struct MANGOS_DLL_DECL CreatureSearcher
 404     {
 405         uint32 i_phaseMask;
 406         Creature* &i_object;
 407         Check & i_check;
 408
 409         CreatureSearcher(WorldObject const* searcher, Creature* & result, Check & check)
 410             : i_phaseMask(searcher->GetPhaseMask()), i_object(result),i_check(check) {}
 411
 412         void Visit(CreatureMapType &m);
 413
 414         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 415     };
 416
 417     // Last accepted by Check Creature if any (Check can change requirements at each call)
 418     template<class Check>
 419         struct MANGOS_DLL_DECL CreatureLastSearcher
 420     {
 421         uint32 i_phaseMask;
 422         Creature* &i_object;
 423         Check & i_check;
 424
 425         CreatureLastSearcher(WorldObject const* searcher, Creature* & result, Check & check)
 426             : i_phaseMask(searcher->GetPhaseMask()), i_object(result),i_check(check) {}
 427
 428         void Visit(CreatureMapType &m);
 429
 430         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 431     };
 432
 433     template<class Check>
 434         struct MANGOS_DLL_DECL CreatureListSearcher
 435     {
 436         uint32 i_phaseMask;
 437         std::list<Creature*> &i_objects;
 438         Check& i_check;
 439
 440         CreatureListSearcher(WorldObject const* searcher, std::list<Creature*> &objects, Check & check)
 441             : i_phaseMask(searcher->GetPhaseMask()), i_objects(objects),i_check(check) {}
 442
 443         void Visit(CreatureMapType &m);
 444
 445         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 446     };
 447
 448     // Player searchers
 449
 450     template<class Check>
 451     struct MANGOS_DLL_DECL PlayerSearcher
 452     {
 453         uint32 i_phaseMask;
 454         Player* &i_object;
 455         Check & i_check;
 456
 457         PlayerSearcher(WorldObject const* searcher, Player* & result, Check & check)
 458             : i_phaseMask(searcher->GetPhaseMask()), i_object(result),i_check(check) {}
 459
 460         void Visit(PlayerMapType &m);
 461
 462         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 463     };
 464
 465     template<class Do>
 466     struct MANGOS_DLL_DECL PlayerWorker
 467     {
 468         uint32 i_phaseMask;
 469         Do& i_do;
 470
 471         PlayerWorker(WorldObject const* searcher, Do& _do)
 472             : i_phaseMask(searcher->GetPhaseMask()), i_do(_do) {}
 473
 474         void Visit(PlayerMapType &m)
 475         {
 476             for(PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
 477                 if(itr->getSource()->InSamePhase(i_phaseMask))
 478                     i_do(itr->getSource());
 479         }
 480
 481         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 482     };
 483
 484     template<class Do>
 485     struct MANGOS_DLL_DECL PlayerDistWorker
 486     {
 487         WorldObject const* i_searcher;
 488         float i_dist;
 489         Do& i_do;
 490
 491         PlayerDistWorker(WorldObject const* searcher, float _dist, Do& _do)
 492             : i_searcher(searcher), i_dist(_dist), i_do(_do) {}
 493
 494         void Visit(PlayerMapType &m)
 495         {
 496             for(PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
 497                 if(itr->getSource()->InSamePhase(i_searcher) && itr->getSource()->GetDistance(i_searcher) <= i_dist)
 498                     i_do(itr->getSource());
 499         }
 500
 501         template<class NOT_INTERESTED> void Visit(GridRefManager<NOT_INTERESTED> &) {}
 502     };
 503
 504     // CHECKS && DO classes
 505
 506     // WorldObject check classes
 507     class CannibalizeObjectCheck
 508     {
 509         public:
 510             CannibalizeObjectCheck(Unit* funit, float range) : i_funit(funit), i_range(range) {}
 511             bool operator()(Player* u)
 512             {
 513                 if( i_funit->IsFriendlyTo(u) || u->isAlive() || u->isInFlight() )
 514                     return false;
 515
 516                 if(i_funit->IsWithinDistInMap(u, i_range) )
 517                     return true;
 518
 519                 return false;
 520             }
 521             bool operator()(Corpse* u);
 522             bool operator()(Creature* u)
 523             {
 524                 if( i_funit->IsFriendlyTo(u) || u->isAlive() || u->isInFlight() ||
 525                     (u->GetCreatureTypeMask() & CREATURE_TYPEMASK_HUMANOID_OR_UNDEAD)==0)
 526                     return false;
 527
 528                 if(i_funit->IsWithinDistInMap(u, i_range) )
 529                     return true;
 530
 531                 return false;
 532             }
 533             template<class NOT_INTERESTED> bool operator()(NOT_INTERESTED*) { return false; }
 534         private:
 535             Unit* const i_funit;
 536             float i_range;
 537     };
 538
 539     // WorldObject do classes
 540
 541     class RespawnDo
 542     {
 543         public:
 544             RespawnDo() {}
 545             void operator()(Creature* u) const { u->Respawn(); }
 546             void operator()(GameObject* u) const { u->Respawn(); }
 547             void operator()(WorldObject*) const {}
 548             void operator()(Corpse*) const {}
 549     };
 550
 551     // GameObject checks
 552
 553     class GameObjectFocusCheck
 554     {
 555         public:
 556             GameObjectFocusCheck(Unit const* unit,uint32 focusId) : i_unit(unit), i_focusId(focusId) {}
 557             bool operator()(GameObject* go) const
 558             {
 559                 if(go->GetGOInfo()->type != GAMEOBJECT_TYPE_SPELL_FOCUS)
 560                     return false;
 561
 562                 if(go->GetGOInfo()->spellFocus.focusId != i_focusId)
 563                     return false;
 564
 565                 float dist = go->GetGOInfo()->spellFocus.dist;
 566
 567                 return go->IsWithinDistInMap(i_unit, dist);
 568             }
 569         private:
 570             Unit const* i_unit;
 571             uint32 i_focusId;
 572     };
 573
 574     // Find the nearest Fishing hole and return true only if source object is in range of hole
 575     class NearestGameObjectFishingHole
 576     {
 577         public:
 578             NearestGameObjectFishingHole(WorldObject const& obj, float range) : i_obj(obj), i_range(range) {}
 579             bool operator()(GameObject* go)
 580             {
 581                 if(go->GetGOInfo()->type == GAMEOBJECT_TYPE_FISHINGHOLE && go->isSpawned() && i_obj.IsWithinDistInMap(go, i_range) && i_obj.IsWithinDistInMap(go, go->GetGOInfo()->fishinghole.radius))
 582                 {
 583                     i_range = i_obj.GetDistance(go);
 584                     return true;
 585                 }
 586                 return false;
 587             }
 588             float GetLastRange() const { return i_range; }
 589         private:
 590             WorldObject const& i_obj;
 591             float  i_range;
 592
 593             // prevent clone
 594             NearestGameObjectFishingHole(NearestGameObjectFishingHole const&);
 595     };
 596
 597     // Success at unit in range, range update for next check (this can be use with GameobjectLastSearcher to find nearest GO)
 598     class NearestGameObjectEntryInObjectRangeCheck
 599     {
 600         public:
 601             NearestGameObjectEntryInObjectRangeCheck(WorldObject const& obj,uint32 entry, float range) : i_obj(obj), i_entry(entry), i_range(range) {}
 602             bool operator()(GameObject* go)
 603             {
 604                 if(go->GetEntry() == i_entry && i_obj.IsWithinDistInMap(go, i_range))
 605                 {
 606                     i_range = i_obj.GetDistance(go);        // use found GO range as new range limit for next check
 607                     return true;
 608                 }
 609                 return false;
 610             }
 611             float GetLastRange() const { return i_range; }
 612         private:
 613             WorldObject const& i_obj;
 614             uint32 i_entry;
 615             float  i_range;
 616
 617             // prevent clone this object
 618             NearestGameObjectEntryInObjectRangeCheck(NearestGameObjectEntryInObjectRangeCheck const&);
 619     };
 620
 621     class GameObjectWithDbGUIDCheck
 622     {
 623         public:
 624             GameObjectWithDbGUIDCheck(WorldObject const& obj,uint32 db_guid) : i_obj(obj), i_db_guid(db_guid) {}
 625             bool operator()(GameObject const* go) const
 626             {
 627                 return go->GetDBTableGUIDLow() == i_db_guid;
 628             }
 629         private:
 630             WorldObject const& i_obj;
 631             uint32 i_db_guid;
 632     };
 633
 634     // Unit checks
 635
 636     class MostHPMissingInRange
 637     {
 638         public:
 639             MostHPMissingInRange(Unit const* obj, float range, uint32 hp) : i_obj(obj), i_range(range), i_hp(hp) {}
 640             bool operator()(Unit* u)
 641             {
 642                 if(u->isAlive() && u->isInCombat() && !i_obj->IsHostileTo(u) && i_obj->IsWithinDistInMap(u, i_range) && u->GetMaxHealth() - u->GetHealth() > i_hp)
 643                 {
 644                     i_hp = u->GetMaxHealth() - u->GetHealth();
 645                     return true;
 646                 }
 647                 return false;
 648             }
 649         private:
 650             Unit const* i_obj;
 651             float i_range;
 652             uint32 i_hp;
 653     };
 654
 655     class FriendlyCCedInRange
 656     {
 657         public:
 658             FriendlyCCedInRange(Unit const* obj, float range) : i_obj(obj), i_range(range) {}
 659             bool operator()(Unit* u)
 660             {
 661                 if(u->isAlive() && u->isInCombat() && !i_obj->IsHostileTo(u) && i_obj->IsWithinDistInMap(u, i_range) &&
 662                     (u->isFeared() || u->isCharmed() || u->isFrozen() || u->hasUnitState(UNIT_STAT_STUNNED) || u->hasUnitState(UNIT_STAT_CONFUSED)))
 663                 {
 664                     return true;
 665                 }
 666                 return false;
 667             }
 668         private:
 669             Unit const* i_obj;
 670             float i_range;
 671     };
 672
 673     class FriendlyMissingBuffInRange
 674     {
 675         public:
 676             FriendlyMissingBuffInRange(Unit const* obj, float range, uint32 spellid) : i_obj(obj), i_range(range), i_spell(spellid) {}
 677             bool operator()(Unit* u)
 678             {
 679                 if(u->isAlive() && u->isInCombat() && !i_obj->IsHostileTo(u) && i_obj->IsWithinDistInMap(u, i_range) &&
 680                     !(u->HasAura(i_spell, 0) || u->HasAura(i_spell, 1) || u->HasAura(i_spell, 2)))
 681                 {
 682                     return true;
 683                 }
 684                 return false;
 685             }
 686         private:
 687             Unit const* i_obj;
 688             float i_range;
 689             uint32 i_spell;
 690     };
 691
 692     class AnyUnfriendlyUnitInObjectRangeCheck
 693     {
 694         public:
 695             AnyUnfriendlyUnitInObjectRangeCheck(WorldObject const* obj, Unit const* funit, float range) : i_obj(obj), i_funit(funit), i_range(range) {}
 696             bool operator()(Unit* u)
 697             {
 698                 if(u->isAlive() && i_obj->IsWithinDistInMap(u, i_range) && !i_funit->IsFriendlyTo(u))
 699                     return true;
 700                 else
 701                     return false;
 702             }
 703         private:
 704             WorldObject const* i_obj;
 705             Unit const* i_funit;
 706             float i_range;
 707     };
 708
 709     class AnyFriendlyUnitInObjectRangeCheck
 710     {
 711         public:
 712             AnyFriendlyUnitInObjectRangeCheck(WorldObject const* obj, Unit const* funit, float range) : i_obj(obj), i_funit(funit), i_range(range) {}
 713             bool operator()(Unit* u)
 714             {
 715                 if(u->isAlive() && i_obj->IsWithinDistInMap(u, i_range) && i_funit->IsFriendlyTo(u))
 716                     return true;
 717                 else
 718                     return false;
 719             }
 720         private:
 721             WorldObject const* i_obj;
 722             Unit const* i_funit;
 723             float i_range;
 724     };
 725
 726     class AnyUnitInObjectRangeCheck
 727     {
 728         public:
 729             AnyUnitInObjectRangeCheck(WorldObject const* obj, float range) : i_obj(obj), i_range(range) {}
 730             bool operator()(Unit* u)
 731             {
 732                 if(u->isAlive() && i_obj->IsWithinDistInMap(u, i_range))
 733                     return true;
 734
 735                 return false;
 736             }
 737         private:
 738             WorldObject const* i_obj;
 739             float i_range;
 740     };
 741
 742     // Success at unit in range, range update for next check (this can be use with UnitLastSearcher to find nearest unit)
 743     class NearestAttackableUnitInObjectRangeCheck
 744     {
 745         public:
 746             NearestAttackableUnitInObjectRangeCheck(WorldObject const* obj, Unit const* funit, float range) : i_obj(obj), i_funit(funit), i_range(range) {}
 747             bool operator()(Unit* u)
 748             {
 749                 if( u->isTargetableForAttack() && i_obj->IsWithinDistInMap(u, i_range) &&
 750                     !i_funit->IsFriendlyTo(u) && u->isVisibleForOrDetect(i_funit,false)  )
 751                 {
 752                     i_range = i_obj->GetDistance(u);        // use found unit range as new range limit for next check
 753                     return true;
 754                 }
 755
 756                 return false;
 757             }
 758         private:
 759             WorldObject const* i_obj;
 760             Unit const* i_funit;
 761             float i_range;
 762
 763             // prevent clone this object
 764             NearestAttackableUnitInObjectRangeCheck(NearestAttackableUnitInObjectRangeCheck const&);
 765     };
 766
 767     class AnyAoETargetUnitInObjectRangeCheck
 768     {
 769         public:
 770             AnyAoETargetUnitInObjectRangeCheck(WorldObject const* obj, Unit const* funit, float range)
 771                 : i_obj(obj), i_funit(funit), i_range(range)
 772             {
 773                 Unit const* check = i_funit;
 774                 Unit const* owner = i_funit->GetOwner();
 775                 if(owner)
 776                     check = owner;
 777                 i_targetForPlayer = ( check->GetTypeId()==TYPEID_PLAYER );
 778             }
 779             bool operator()(Unit* u)
 780             {
 781                 // Check contains checks for: live, non-selectable, non-attackable flags, flight check and GM check, ignore totems
 782                 if (!u->isTargetableForAttack())
 783                     return false;
 784                 if(u->GetTypeId()==TYPEID_UNIT && ((Creature*)u)->isTotem())
 785                     return false;
 786
 787                 if(( i_targetForPlayer ? !i_funit->IsFriendlyTo(u) : i_funit->IsHostileTo(u) )&& i_obj->IsWithinDistInMap(u, i_range))
 788                     return true;
 789
 790                 return false;
 791             }
 792         private:
 793             bool i_targetForPlayer;
 794             WorldObject const* i_obj;
 795             Unit const* i_funit;
 796             float i_range;
 797     };
 798
 799     struct AnyDeadUnitCheck
 800     {
 801         bool operator()(Unit* u) { return !u->isAlive(); }
 802     };
 803
 804     struct AnyStealthedCheck
 805     {
 806         bool operator()(Unit* u) { return u->GetVisibility()==VISIBILITY_GROUP_STEALTH; }
 807     };
 808
 809     // Creature checks
 810
 811     class InAttackDistanceFromAnyHostileCreatureCheck
 812     {
 813         public:
 814             explicit InAttackDistanceFromAnyHostileCreatureCheck(Unit* funit) : i_funit(funit) {}
 815             bool operator()(Creature* u)
 816             {
 817                 if(u->isAlive() && u->IsHostileTo(i_funit) && i_funit->IsWithinDistInMap(u, u->GetAttackDistance(i_funit)))
 818                     return true;
 819
 820                 return false;
 821             }
 822         private:
 823             Unit* const i_funit;
 824     };
 825
 826     class AnyAssistCreatureInRangeCheck
 827     {
 828         public:
 829             AnyAssistCreatureInRangeCheck(Unit* funit, Unit* enemy, float range)
 830                 : i_funit(funit), i_enemy(enemy), i_range(range)
 831             {
 832             }
 833             bool operator()(Creature* u)
 834             {
 835                 if(u == i_funit)
 836                     return false;
 837
 838                 if ( !u->CanAssistTo(i_funit, i_enemy) )
 839                     return false;
 840
 841                 // too far
 842                 if( !i_funit->IsWithinDistInMap(u, i_range) )
 843                     return false;
 844
 845                 // only if see assisted creature
 846                 if( !i_funit->IsWithinLOSInMap(u) )
 847                     return false;
 848
 849                 return true;
 850             }
 851         private:
 852             Unit* const i_funit;
 853             Unit* const i_enemy;
 854             float i_range;
 855     };
 856
 857     // Success at unit in range, range update for next check (this can be use with CreatureLastSearcher to find nearest creature)
 858     class NearestCreatureEntryWithLiveStateInObjectRangeCheck
 859     {
 860         public:
 861             NearestCreatureEntryWithLiveStateInObjectRangeCheck(WorldObject const& obj,uint32 entry, bool alive, float range)
 862                 : i_obj(obj), i_entry(entry), i_alive(alive), i_range(range) {}
 863
 864             bool operator()(Creature* u)
 865             {
 866                 if(u->GetEntry() == i_entry && u->isAlive()==i_alive && i_obj.IsWithinDistInMap(u, i_range))
 867                 {
 868                     i_range = i_obj.GetDistance(u);         // use found unit range as new range limit for next check
 869                     return true;
 870                 }
 871                 return false;
 872             }
 873             float GetLastRange() const { return i_range; }
 874         private:
 875             WorldObject const& i_obj;
 876             uint32 i_entry;
 877             bool   i_alive;
 878             float  i_range;
 879
 880             // prevent clone this object
 881             NearestCreatureEntryWithLiveStateInObjectRangeCheck(NearestCreatureEntryWithLiveStateInObjectRangeCheck const&);
 882     };
 883
 884     class AnyPlayerInObjectRangeCheck
 885     {
 886     public:
 887         AnyPlayerInObjectRangeCheck(WorldObject const* obj, float range) : i_obj(obj), i_range(range) {}
 888         bool operator()(Player* u)
 889         {
 890             if(u->isAlive() && i_obj->IsWithinDistInMap(u, i_range))
 891                 return true;
 892
 893             return false;
 894         }
 895     private:
 896         WorldObject const* i_obj;
 897         float i_range;
 898     };
 899
 900     // Player checks and do
 901
 902     // Prepare using Builder localized packets with caching and send to player
 903     template<class Builder>
 904     class LocalizedPacketDo
 905     {
 906         public:
 907             explicit LocalizedPacketDo(Builder& builder) : i_builder(builder) {}
 908
 909             ~LocalizedPacketDo()
 910             {
 911                 for(size_t i = 0; i < i_data_cache.size(); ++i)
 912                     delete i_data_cache[i];
 913             }
 914             void operator()( Player* p );
 915
 916         private:
 917             Builder& i_builder;
 918             std::vector<WorldPacket*> i_data_cache;         // 0 = default, i => i-1 locale index
 919     };
 920
 921     // Prepare using Builder localized packets with caching and send to player
 922     template<class Builder>
 923     class LocalizedPacketListDo
 924     {
 925         public:
 926             typedef std::vector<WorldPacket*> WorldPacketList;
 927             explicit LocalizedPacketListDo(Builder& builder) : i_builder(builder) {}
 928
 929             ~LocalizedPacketListDo()
 930             {
 931                 for(size_t i = 0; i < i_data_cache.size(); ++i)
 932                     for(int j = 0; j < i_data_cache[i].size(); ++j)
 933                         delete i_data_cache[i][j];
 934             }
 935             void operator()( Player* p );
 936
 937         private:
 938             Builder& i_builder;
 939             std::vector<WorldPacketList> i_data_cache;
 940                                                             // 0 = default, i => i-1 locale index
 941     };
 942
 943     #ifndef WIN32
 944     template<> void PlayerRelocationNotifier::Visit<Creature>(CreatureMapType &);
 945     template<> void PlayerRelocationNotifier::Visit<Player>(PlayerMapType &);
 946     template<> void CreatureRelocationNotifier::Visit<Player>(PlayerMapType &);
 947     template<> void CreatureRelocationNotifier::Visit<Creature>(CreatureMapType &);
 948     template<> inline void DynamicObjectUpdater::Visit<Creature>(CreatureMapType &);
 949     template<> inline void DynamicObjectUpdater::Visit<Player>(PlayerMapType &);
 950     #endif
 951 }
 952 #endif