Files
mod-ale/LuaEngine.h
Patman64 31470c2cf7 Allow scripting of instances w/ persistent data
Some fixes for TC and changes overall

Pass map object to hook via function arguments

The map object is no longer stored inside the instance data table.

Fix mistake in base64 decoder

It was failing whenever it encountered a '=' character, which is
completely valid.

Make ElunaInstanceAI::Load always load something

When it failed to load data, it was leaving nothing on the stack. Since
subsequent code expected Load to always load something, this was causing
issues.

Now, when Load fails to load anything, it just leaves a new empty table on
the stack.

Also: the error messages for Load have been improved.

Modify lua-marshal to allow saving of functions/userdata.

Some additional code was needed to save functions due to the inclusion of
a reference to _ENV within their upvalues (since Lua 5.2).

During encoding, a placeholder is left where the _ENV reference would be.
During decoding, a reference to the current _G is swapped with the
placeholder.

Make ElunaInstanceAI::Load re-initialize if data failed to load.

Also improve error messages by not including the raw data.

Improve storage format of upvalues

Instead of storing the upvalues by name, store by index. A wrapper is
still used in case the upvalue is nil, to prevent holes in the upvalues table.

A special field in the upvalues table, "E", is used to store the index of
the _ENV reference (if there was one). A reference to the current globals
table is set as the upvalue upon decoding.

Remove wrapping from upvalue storing, instead save amount of upvalues
2015-08-01 00:35:41 +03:00

529 lines
22 KiB
C++

/*
* Copyright (C) 2010 - 2015 Eluna Lua Engine <http://emudevs.com/>
* This program is free software licensed under GPL version 3
* Please see the included DOCS/LICENSE.md for more information
*/
#ifndef _LUA_ENGINE_H
#define _LUA_ENGINE_H
#include "Common.h"
#include "SharedDefines.h"
#include "DBCEnums.h"
#include "Group.h"
#include "Item.h"
#ifndef TRINITY
#include "Player.h"
#endif
#include "Weather.h"
#include "World.h"
#include "Hooks.h"
#include "ElunaUtility.h"
extern "C"
{
#include "lua.h"
};
#ifdef TRINITY
struct ItemTemplate;
typedef BattlegroundTypeId BattleGroundTypeId;
#else
struct ItemPrototype;
typedef ItemPrototype ItemTemplate;
typedef SpellEffectIndex SpellEffIndex;
struct SpellEntry;
typedef SpellEntry SpellInfo;
#ifdef CLASSIC
typedef int Difficulty;
#endif
#endif
struct AreaTriggerEntry;
class AuctionHouseObject;
struct AuctionEntry;
#ifdef TRINITY
class Battleground;
typedef Battleground BattleGround;
#endif
class Channel;
class Corpse;
class Creature;
class CreatureAI;
class GameObject;
#ifdef TRINITY
class GameObjectAI;
#endif
class Guild;
class Group;
#ifdef TRINITY
class InstanceScript;
typedef InstanceScript InstanceData;
#else
class InstanceData;
#endif
class ElunaInstanceAI;
class Item;
class Pet;
class Player;
class Quest;
class Spell;
class SpellCastTargets;
#ifdef TRINITY
class TempSummon;
#else
class TemporarySummon;
typedef TemporarySummon TempSummon;
#endif
// class Transport;
class Unit;
class Weather;
class WorldPacket;
#ifndef CLASSIC
#ifndef TBC
#ifdef TRINITY
class Vehicle;
#else
class VehicleInfo;
typedef VehicleInfo Vehicle;
#endif
#endif
#endif
struct lua_State;
class EventMgr;
class ElunaObject;
template<typename T> class ElunaTemplate;
template<typename K> class BindingMap;
template<typename T> struct EventKey;
template<typename T> struct EntryKey;
template<typename T> struct UniqueObjectKey;
struct LuaScript
{
std::string fileext;
std::string filename;
std::string filepath;
std::string modulepath;
};
#define ELUNA_OBJECT_STORE "Eluna Object Store"
#define LOCK_ELUNA Eluna::Guard __guard(Eluna::GetLock())
class Eluna
{
public:
typedef std::list<LuaScript> ScriptList;
#ifdef TRINITY
typedef std::recursive_mutex LockType;
typedef std::lock_guard<LockType> Guard;
#else
typedef ACE_Recursive_Thread_Mutex LockType;
typedef ACE_Guard<LockType> Guard;
#endif
private:
static bool reload;
static bool initialized;
static LockType lock;
// Lua script locations
static ScriptList lua_scripts;
static ScriptList lua_extensions;
// Lua script folder path
static std::string lua_folderpath;
// lua path variable for require() function
static std::string lua_requirepath;
uint32 event_level;
// When a hook pushes arguments to be passed to event handlers
// this is used to keep track of how many arguments were pushed.
uint8 push_counter;
bool enabled;
// Map from instance ID -> Lua table ref
std::unordered_map<uint32, int> instanceDataRefs;
// Map from map ID -> Lua table ref
std::unordered_map<uint32, int> continentDataRefs;
Eluna();
~Eluna();
// Prevent copy
Eluna(Eluna const&);
Eluna& operator=(const Eluna&);
void OpenLua();
void CloseLua();
void DestroyBindStores();
void CreateBindStores();
bool ExecuteCall(int params, int res);
void InvalidateObjects();
// Use ReloadEluna() to make eluna reload
// This is called on world update to reload eluna
static void _ReloadEluna();
static void LoadScriptPaths();
static void GetScripts(std::string path);
static void AddScriptPath(std::string filename, const std::string& fullpath);
static int StackTrace(lua_State *_L);
static void Report(lua_State* _L);
// Some helpers for hooks to call event handlers.
// The bodies of the templates are in HookHelpers.h, so if you want to use them you need to #include "HookHelpers.h".
template<typename K1, typename K2> int SetupStack(BindingMap<K1>* bindings1, BindingMap<K2>* bindings2, const K1& key1, const K2& key2, int number_of_arguments);
int CallOneFunction(int number_of_functions, int number_of_arguments, int number_of_results);
void CleanUpStack(int number_of_arguments);
template<typename T> void ReplaceArgument(T value, uint8 index);
template<typename K1, typename K2> void CallAllFunctions(BindingMap<K1>* bindings1, BindingMap<K2>* bindings2, const K1& key1, const K2& key2);
template<typename K1, typename K2> bool CallAllFunctionsBool(BindingMap<K1>* bindings1, BindingMap<K2>* bindings2, const K1& key1, const K2& key2, bool default_value = false);
// Same as above but for only one binding instead of two.
// `key` is passed twice because there's no NULL for references, but it's not actually used if `bindings2` is NULL.
template<typename K> int SetupStack(BindingMap<K>* bindings, const K& key, int number_of_arguments)
{
return SetupStack<K, K>(bindings, NULL, key, key, number_of_arguments);
}
template<typename K> void CallAllFunctions(BindingMap<K>* bindings, const K& key)
{
CallAllFunctions<K, K>(bindings, NULL, key, key);
}
template<typename K> bool CallAllFunctionsBool(BindingMap<K>* bindings, const K& key, bool default_value = false)
{
return CallAllFunctionsBool<K, K>(bindings, NULL, key, key, default_value);
}
// Non-static pushes, to be used in hooks.
// These just call the correct static version with the main thread's Lua state.
void Push() { Push(L); ++push_counter; }
void Push(const long long value) { Push(L, value); ++push_counter; }
void Push(const unsigned long long value) { Push(L, value); ++push_counter; }
void Push(const long value) { Push(L, value); ++push_counter; }
void Push(const unsigned long value) { Push(L, value); ++push_counter; }
void Push(const int value) { Push(L, value); ++push_counter; }
void Push(const unsigned int value) { Push(L, value); ++push_counter; }
void Push(const bool value) { Push(L, value); ++push_counter; }
void Push(const float value) { Push(L, value); ++push_counter; }
void Push(const double value) { Push(L, value); ++push_counter; }
void Push(const std::string& value) { Push(L, value); ++push_counter; }
void Push(const char* value) { Push(L, value); ++push_counter; }
template<typename T>
void Push(T const* ptr) { Push(L, ptr); ++push_counter; }
public:
static Eluna* GEluna;
lua_State* L;
EventMgr* eventMgr;
BindingMap< EventKey<Hooks::ServerEvents> >* ServerEventBindings;
BindingMap< EventKey<Hooks::PlayerEvents> >* PlayerEventBindings;
BindingMap< EventKey<Hooks::GuildEvents> >* GuildEventBindings;
BindingMap< EventKey<Hooks::GroupEvents> >* GroupEventBindings;
BindingMap< EventKey<Hooks::VehicleEvents> >* VehicleEventBindings;
BindingMap< EventKey<Hooks::BGEvents> >* BGEventBindings;
BindingMap< EntryKey<Hooks::PacketEvents> >* PacketEventBindings;
BindingMap< EntryKey<Hooks::CreatureEvents> >* CreatureEventBindings;
BindingMap< EntryKey<Hooks::GossipEvents> >* CreatureGossipBindings;
BindingMap< EntryKey<Hooks::GameObjectEvents> >* GameObjectEventBindings;
BindingMap< EntryKey<Hooks::GossipEvents> >* GameObjectGossipBindings;
BindingMap< EntryKey<Hooks::ItemEvents> >* ItemEventBindings;
BindingMap< EntryKey<Hooks::GossipEvents> >* ItemGossipBindings;
BindingMap< EntryKey<Hooks::GossipEvents> >* PlayerGossipBindings;
BindingMap< EntryKey<Hooks::InstanceEvents> >* MapEventBindings;
BindingMap< EntryKey<Hooks::InstanceEvents> >* InstanceEventBindings;
BindingMap< UniqueObjectKey<Hooks::CreatureEvents> >* CreatureUniqueBindings;
static void Initialize();
static void Uninitialize();
// This function is used to make eluna reload
static void ReloadEluna() { LOCK_ELUNA; reload = true; }
static LockType& GetLock() { return lock; };
static bool IsInitialized() { return initialized; }
// Static pushes, can be used by anything, including methods.
static void Push(lua_State* luastate); // nil
static void Push(lua_State* luastate, const long long);
static void Push(lua_State* luastate, const unsigned long long);
static void Push(lua_State* luastate, const long);
static void Push(lua_State* luastate, const unsigned long);
static void Push(lua_State* luastate, const int);
static void Push(lua_State* luastate, const unsigned int);
static void Push(lua_State* luastate, const bool);
static void Push(lua_State* luastate, const float);
static void Push(lua_State* luastate, const double);
static void Push(lua_State* luastate, const std::string&);
static void Push(lua_State* luastate, const char*);
static void Push(lua_State* luastate, Object const* obj);
static void Push(lua_State* luastate, WorldObject const* obj);
static void Push(lua_State* luastate, Unit const* unit);
static void Push(lua_State* luastate, Pet const* pet);
static void Push(lua_State* luastate, TempSummon const* summon);
template<typename T>
static void Push(lua_State* luastate, T const* ptr)
{
ElunaTemplate<T>::Push(luastate, ptr);
}
/*
* Returns `true` if Eluna has instance data for `map`.
*/
bool HasInstanceData(Map const* map);
/*
* Use the top element of the stack as the instance data table for `map`,
* then pops it off the stack.
*/
void CreateInstanceData(Map const* map);
/*
* Retrieve the instance data for the `Map` scripted by `ai` and push it
* onto the stack.
*
* An `ElunaInstanceAI` is needed because the instance data might
* not exist (i.e. Eluna has been reloaded).
*
* In that case, the AI is "reloaded" (new instance data table is created
* and loaded with the last known save state, and `Load`/`Initialize`
* hooks are called).
*/
void PushInstanceData(lua_State* L, ElunaInstanceAI* ai, bool incrementCounter = true);
void RunScripts();
bool ShouldReload() const { return reload; }
bool IsEnabled() const { return enabled && IsInitialized(); }
bool HasLuaState() const { return L != NULL; }
int Register(lua_State* L, uint8 reg, uint32 entry, uint64 guid, uint32 instanceId, uint32 event_id, int functionRef, uint32 shots);
// Checks
template<typename T> static T CHECKVAL(lua_State* luastate, int narg);
template<typename T> static T CHECKVAL(lua_State* luastate, int narg, T def)
{
return lua_isnoneornil(luastate, narg) ? def : CHECKVAL<T>(luastate, narg);
}
template<typename T> static T* CHECKOBJ(lua_State* luastate, int narg, bool error = true)
{
return ElunaTemplate<T>::Check(luastate, narg, error);
}
static ElunaObject* CHECKTYPE(lua_State* luastate, int narg, const char *tname, bool error = true);
CreatureAI* GetAI(Creature* creature);
InstanceData* GetInstanceData(Map* map);
void FreeInstanceId(uint32 instanceId);
/* Custom */
void OnTimedEvent(int funcRef, uint32 delay, uint32 calls, WorldObject* obj);
bool OnCommand(Player* player, const char* text);
void OnWorldUpdate(uint32 diff);
void OnLootItem(Player* pPlayer, Item* pItem, uint32 count, uint64 guid);
void OnLootMoney(Player* pPlayer, uint32 amount);
void OnFirstLogin(Player* pPlayer);
void OnEquip(Player* pPlayer, Item* pItem, uint8 bag, uint8 slot);
void OnRepop(Player* pPlayer);
void OnResurrect(Player* pPlayer);
void OnQuestAbandon(Player* pPlayer, uint32 questId);
void OnLearnTalents(Player* pPlayer, uint32 talentId, uint32 talentRank, uint32 spellid);
InventoryResult OnCanUseItem(const Player* pPlayer, uint32 itemEntry);
void OnLuaStateClose();
void OnLuaStateOpen();
bool OnAddonMessage(Player* sender, uint32 type, std::string& msg, Player* receiver, Guild* guild, Group* group, Channel* channel);
/* Item */
bool OnDummyEffect(Unit* pCaster, uint32 spellId, SpellEffIndex effIndex, Item* pTarget);
bool OnQuestAccept(Player* pPlayer, Item* pItem, Quest const* pQuest);
bool OnUse(Player* pPlayer, Item* pItem, SpellCastTargets const& targets);
bool OnItemUse(Player* pPlayer, Item* pItem, SpellCastTargets const& targets);
bool OnItemGossip(Player* pPlayer, Item* pItem, SpellCastTargets const& targets);
bool OnExpire(Player* pPlayer, ItemTemplate const* pProto);
bool OnRemove(Player* pPlayer, Item* item);
void HandleGossipSelectOption(Player* pPlayer, Item* item, uint32 sender, uint32 action, const std::string& code);
/* Creature */
bool OnDummyEffect(Unit* pCaster, uint32 spellId, SpellEffIndex effIndex, Creature* pTarget);
bool OnGossipHello(Player* pPlayer, Creature* pCreature);
bool OnGossipSelect(Player* pPlayer, Creature* pCreature, uint32 sender, uint32 action);
bool OnGossipSelectCode(Player* pPlayer, Creature* pCreature, uint32 sender, uint32 action, const char* code);
bool OnQuestAccept(Player* pPlayer, Creature* pCreature, Quest const* pQuest);
bool OnQuestReward(Player* pPlayer, Creature* pCreature, Quest const* pQuest, uint32 opt);
uint32 GetDialogStatus(Player* pPlayer, Creature* pCreature);
bool OnSummoned(Creature* creature, Unit* summoner);
bool UpdateAI(Creature* me, const uint32 diff);
bool EnterCombat(Creature* me, Unit* target);
bool DamageTaken(Creature* me, Unit* attacker, uint32& damage);
bool JustDied(Creature* me, Unit* killer);
bool KilledUnit(Creature* me, Unit* victim);
bool JustSummoned(Creature* me, Creature* summon);
bool SummonedCreatureDespawn(Creature* me, Creature* summon);
bool MovementInform(Creature* me, uint32 type, uint32 id);
bool AttackStart(Creature* me, Unit* target);
bool EnterEvadeMode(Creature* me);
bool AttackedBy(Creature* me, Unit* attacker);
bool JustRespawned(Creature* me);
bool JustReachedHome(Creature* me);
bool ReceiveEmote(Creature* me, Player* player, uint32 emoteId);
bool CorpseRemoved(Creature* me, uint32& respawnDelay);
bool MoveInLineOfSight(Creature* me, Unit* who);
bool SpellHit(Creature* me, Unit* caster, SpellInfo const* spell);
bool SpellHitTarget(Creature* me, Unit* target, SpellInfo const* spell);
bool SummonedCreatureDies(Creature* me, Creature* summon, Unit* killer);
bool OwnerAttackedBy(Creature* me, Unit* attacker);
bool OwnerAttacked(Creature* me, Unit* target);
void On_Reset(Creature* me);
/* GameObject */
bool OnDummyEffect(Unit* pCaster, uint32 spellId, SpellEffIndex effIndex, GameObject* pTarget);
bool OnGameObjectUse(Player* pPlayer, GameObject* pGameObject);
bool OnGossipHello(Player* pPlayer, GameObject* pGameObject);
bool OnGossipSelect(Player* pPlayer, GameObject* pGameObject, uint32 sender, uint32 action);
bool OnGossipSelectCode(Player* pPlayer, GameObject* pGameObject, uint32 sender, uint32 action, const char* code);
bool OnQuestAccept(Player* pPlayer, GameObject* pGameObject, Quest const* pQuest);
bool OnQuestReward(Player* pPlayer, GameObject* pGameObject, Quest const* pQuest, uint32 opt);
uint32 GetDialogStatus(Player* pPlayer, GameObject* pGameObject);
#ifndef CLASSIC
#ifndef TBC
void OnDestroyed(GameObject* pGameObject, Player* pPlayer);
void OnDamaged(GameObject* pGameObject, Player* pPlayer);
#endif
#endif
void OnLootStateChanged(GameObject* pGameObject, uint32 state);
void OnGameObjectStateChanged(GameObject* pGameObject, uint32 state);
void UpdateAI(GameObject* pGameObject, uint32 diff);
void OnSpawn(GameObject* gameobject);
/* Packet */
bool OnPacketSend(WorldSession* session, WorldPacket& packet);
void OnPacketSendAny(Player* player, WorldPacket& packet, bool& result);
void OnPacketSendOne(Player* player, WorldPacket& packet, bool& result);
bool OnPacketReceive(WorldSession* session, WorldPacket& packet);
void OnPacketReceiveAny(Player* player, WorldPacket& packet, bool& result);
void OnPacketReceiveOne(Player* player, WorldPacket& packet, bool& result);
/* Player */
void OnPlayerEnterCombat(Player* pPlayer, Unit* pEnemy);
void OnPlayerLeaveCombat(Player* pPlayer);
void OnPVPKill(Player* pKiller, Player* pKilled);
void OnCreatureKill(Player* pKiller, Creature* pKilled);
void OnPlayerKilledByCreature(Creature* pKiller, Player* pKilled);
void OnLevelChanged(Player* pPlayer, uint8 oldLevel);
void OnFreeTalentPointsChanged(Player* pPlayer, uint32 newPoints);
void OnTalentsReset(Player* pPlayer, bool noCost);
void OnMoneyChanged(Player* pPlayer, int32& amount);
void OnGiveXP(Player* pPlayer, uint32& amount, Unit* pVictim);
void OnReputationChange(Player* pPlayer, uint32 factionID, int32& standing, bool incremental);
void OnDuelRequest(Player* pTarget, Player* pChallenger);
void OnDuelStart(Player* pStarter, Player* pChallenger);
void OnDuelEnd(Player* pWinner, Player* pLoser, DuelCompleteType type);
bool OnChat(Player* pPlayer, uint32 type, uint32 lang, std::string& msg);
bool OnChat(Player* pPlayer, uint32 type, uint32 lang, std::string& msg, Group* pGroup);
bool OnChat(Player* pPlayer, uint32 type, uint32 lang, std::string& msg, Guild* pGuild);
bool OnChat(Player* pPlayer, uint32 type, uint32 lang, std::string& msg, Channel* pChannel);
bool OnChat(Player* pPlayer, uint32 type, uint32 lang, std::string& msg, Player* pReceiver);
void OnEmote(Player* pPlayer, uint32 emote);
void OnTextEmote(Player* pPlayer, uint32 textEmote, uint32 emoteNum, uint64 guid);
void OnSpellCast(Player* pPlayer, Spell* pSpell, bool skipCheck);
void OnLogin(Player* pPlayer);
void OnLogout(Player* pPlayer);
void OnCreate(Player* pPlayer);
void OnDelete(uint32 guid);
void OnSave(Player* pPlayer);
void OnBindToInstance(Player* pPlayer, Difficulty difficulty, uint32 mapid, bool permanent);
void OnUpdateZone(Player* pPlayer, uint32 newZone, uint32 newArea);
void OnMapChanged(Player* pPlayer);
void HandleGossipSelectOption(Player* pPlayer, uint32 menuId, uint32 sender, uint32 action, const std::string& code);
#ifndef CLASSIC
#ifndef TBC
/* Vehicle */
void OnInstall(Vehicle* vehicle);
void OnUninstall(Vehicle* vehicle);
void OnInstallAccessory(Vehicle* vehicle, Creature* accessory);
void OnAddPassenger(Vehicle* vehicle, Unit* passenger, int8 seatId);
void OnRemovePassenger(Vehicle* vehicle, Unit* passenger);
#endif
#endif
/* AreaTrigger */
bool OnAreaTrigger(Player* pPlayer, AreaTriggerEntry const* pTrigger);
/* Weather */
void OnChange(Weather* weather, uint32 zone, WeatherState state, float grade);
/* Auction House */
void OnAdd(AuctionHouseObject* ah, AuctionEntry* entry);
void OnRemove(AuctionHouseObject* ah, AuctionEntry* entry);
void OnSuccessful(AuctionHouseObject* ah, AuctionEntry* entry);
void OnExpire(AuctionHouseObject* ah, AuctionEntry* entry);
/* Guild */
void OnAddMember(Guild* guild, Player* player, uint32 plRank);
void OnRemoveMember(Guild* guild, Player* player, bool isDisbanding);
void OnMOTDChanged(Guild* guild, const std::string& newMotd);
void OnInfoChanged(Guild* guild, const std::string& newInfo);
void OnCreate(Guild* guild, Player* leader, const std::string& name);
void OnDisband(Guild* guild);
void OnMemberWitdrawMoney(Guild* guild, Player* player, uint32& amount, bool isRepair);
void OnMemberDepositMoney(Guild* guild, Player* player, uint32& amount);
void OnItemMove(Guild* guild, Player* player, Item* pItem, bool isSrcBank, uint8 srcContainer, uint8 srcSlotId, bool isDestBank, uint8 destContainer, uint8 destSlotId);
void OnEvent(Guild* guild, uint8 eventType, uint32 playerGuid1, uint32 playerGuid2, uint8 newRank);
void OnBankEvent(Guild* guild, uint8 eventType, uint8 tabId, uint32 playerGuid, uint32 itemOrMoney, uint16 itemStackCount, uint8 destTabId);
/* Group */
void OnAddMember(Group* group, uint64 guid);
void OnInviteMember(Group* group, uint64 guid);
void OnRemoveMember(Group* group, uint64 guid, uint8 method);
void OnChangeLeader(Group* group, uint64 newLeaderGuid, uint64 oldLeaderGuid);
void OnDisband(Group* group);
void OnCreate(Group* group, uint64 leaderGuid, GroupType groupType);
/* Map */
void OnCreate(Map* map);
void OnDestroy(Map* map);
void OnPlayerEnter(Map* map, Player* player);
void OnPlayerLeave(Map* map, Player* player);
void OnUpdate(Map* map, uint32 diff);
void OnAddToWorld(Creature* creature);
void OnRemoveFromWorld(Creature* creature);
void OnAddToWorld(GameObject* gameobject);
void OnRemoveFromWorld(GameObject* gameobject);
void OnRemove(Creature* creature);
void OnRemove(GameObject* gameobject);
/* Instance */
void OnInitialize(ElunaInstanceAI* ai);
void OnLoad(ElunaInstanceAI* ai);
void OnUpdateInstance(ElunaInstanceAI* ai, uint32 diff);
void OnPlayerEnterInstance(ElunaInstanceAI* ai, Player* player);
void OnCreatureCreate(ElunaInstanceAI* ai, Creature* creature);
void OnGameObjectCreate(ElunaInstanceAI* ai, GameObject* gameobject);
bool OnCheckEncounterInProgress(ElunaInstanceAI* ai);
/* World */
void OnOpenStateChange(bool open);
void OnConfigLoad(bool reload);
void OnShutdownInitiate(ShutdownExitCode code, ShutdownMask mask);
void OnShutdownCancel();
void OnUpdate(uint32 diff);
void OnStartup();
void OnShutdown();
/* Battle Ground */
void OnBGStart(BattleGround* bg, BattleGroundTypeId bgId, uint32 instanceId);
void OnBGEnd(BattleGround* bg, BattleGroundTypeId bgId, uint32 instanceId, Team winner);
void OnBGCreate(BattleGround* bg, BattleGroundTypeId bgId, uint32 instanceId);
void OnBGDestroy(BattleGround* bg, BattleGroundTypeId bgId, uint32 instanceId);
};
template<> Unit* Eluna::CHECKOBJ<Unit>(lua_State* L, int narg, bool error);
template<> Object* Eluna::CHECKOBJ<Object>(lua_State* L, int narg, bool error);
template<> WorldObject* Eluna::CHECKOBJ<WorldObject>(lua_State* L, int narg, bool error);
template<> ElunaObject* Eluna::CHECKOBJ<ElunaObject>(lua_State* L, int narg, bool error);
#define sEluna Eluna::GEluna
#endif