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luascript.cpp
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luascript.cpp
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////////////////////////////////////////////////////////////////////////
// OpenTibia - an opensource roleplaying game
////////////////////////////////////////////////////////////////////////
// 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 3 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, see <http://www.gnu.org/licenses/>.
////////////////////////////////////////////////////////////////////////
#include "otpch.h"
#include "luascript.h"
#include "scriptmanager.h"
#include <boost/filesystem.hpp>
#include <boost/any.hpp>
#include <iostream>
#include <iomanip>
#include "player.h"
#include "item.h"
#include "teleport.h"
#include "town.h"
#include "house.h"
#include "housetile.h"
#include "database.h"
#include "iologindata.h"
#include "ioban.h"
#include "iomapserialize.h"
#include "talkaction.h"
#include "spells.h"
#include "combat.h"
#include "condition.h"
#include "baseevents.h"
#include "monsters.h"
#include "raids.h"
#include "configmanager.h"
#include "vocation.h"
#include "status.h"
#include "game.h"
#include "chat.h"
extern Game g_game;
extern Monsters g_monsters;
extern Chat g_chat;
extern ConfigManager g_config;
extern Spells* g_spells;
extern TalkActions* g_talkActions;
enum
{
EVENT_ID_LOADING = 1,
EVENT_ID_USER = 1000,
};
ScriptEnviroment::AreaMap ScriptEnviroment::m_areaMap;
uint32_t ScriptEnviroment::m_lastAreaId = 0;
ScriptEnviroment::CombatMap ScriptEnviroment::m_combatMap;
uint32_t ScriptEnviroment::m_lastCombatId = 0;
ScriptEnviroment::ConditionMap ScriptEnviroment::m_conditionMap;
uint32_t ScriptEnviroment::m_lastConditionId = 0;
ScriptEnviroment::ConditionMap ScriptEnviroment::m_tempConditionMap;
ScriptEnviroment::ThingMap ScriptEnviroment::m_globalMap;
ScriptEnviroment::StorageMap ScriptEnviroment::m_storageMap;
ScriptEnviroment::TempItemListMap ScriptEnviroment::m_tempItems;
ScriptEnviroment::ScriptEnviroment()
{
m_lastUID = 70000;
m_loaded = true;
reset();
}
ScriptEnviroment::~ScriptEnviroment()
{
for(CombatMap::iterator it = m_combatMap.begin(); it != m_combatMap.end(); ++it)
delete it->second;
m_combatMap.clear();
for(AreaMap::iterator it = m_areaMap.begin(); it != m_areaMap.end(); ++it)
delete it->second;
m_areaMap.clear();
for(ConditionMap::iterator it = m_conditionMap.begin(); it != m_conditionMap.end(); ++it)
delete it->second;
m_conditionMap.clear();
reset();
}
void ScriptEnviroment::reset()
{
m_scriptId = m_callbackId = 0;
m_timerEvent = false;
m_realPos = Position();
m_interface = NULL;
for(TempItemListMap::iterator mit = m_tempItems.begin(); mit != m_tempItems.end(); ++mit)
{
ItemList itemList = mit->second;
for(ItemList::iterator it = itemList.begin(); it != itemList.end(); ++it)
{
if((*it)->getParent() == VirtualCylinder::virtualCylinder)
g_game.freeThing(*it);
}
}
m_tempItems.clear();
for(DBResultMap::iterator it = m_tempResults.begin(); it != m_tempResults.end(); ++it)
{
if(it->second)
it->second->free();
}
m_tempResults.clear();
for(ConditionMap::iterator it = m_tempConditionMap.begin(); it != m_tempConditionMap.end(); ++it)
delete it->second;
m_tempConditionMap.clear();
m_localMap.clear();
}
bool ScriptEnviroment::saveGameState()
{
if(!g_config.getBool(ConfigManager::SAVE_GLOBAL_STORAGE))
return true;
Database* db = Database::getInstance();
DBQuery query;
query << "DELETE FROM `global_storage` WHERE `world_id` = " << g_config.getNumber(ConfigManager::WORLD_ID) << ";";
if(!db->executeQuery(query.str()))
return false;
DBInsert query_insert(db);
query_insert.setQuery("INSERT INTO `global_storage` (`key`, `world_id`, `value`) VALUES ");
for(StorageMap::const_iterator it = m_storageMap.begin(); it != m_storageMap.end(); ++it)
{
char buffer[25 + it->second.length()];
sprintf(buffer, "%u, %u, %s", it->first, g_config.getNumber(ConfigManager::WORLD_ID), db->escapeString(it->second).c_str());
if(!query_insert.addRow(buffer))
return false;
}
return query_insert.execute();
}
bool ScriptEnviroment::loadGameState()
{
Database* db = Database::getInstance();
DBResult* result;
DBQuery query;
query << "SELECT `key`, `value` FROM `global_storage` WHERE `world_id` = " << g_config.getNumber(ConfigManager::WORLD_ID) << ";";
if((result = db->storeQuery(query.str())))
{
do
m_storageMap[result->getDataInt("key")] = result->getDataString("value");
while(result->next());
result->free();
}
query.str("");
return true;
}
bool ScriptEnviroment::setCallbackId(int32_t callbackId, LuaInterface* interface)
{
if(!m_callbackId)
{
m_callbackId = callbackId;
m_interface = interface;
return true;
}
//nested callbacks are not allowed
if(m_interface)
m_interface->errorEx("Nested callbacks!");
return false;
}
void ScriptEnviroment::getInfo(int32_t& scriptId, std::string& desc, LuaInterface*& interface, int32_t& callbackId, bool& timerEvent)
{
scriptId = m_scriptId;
desc = m_event;
interface = m_interface;
callbackId = m_callbackId;
timerEvent = m_timerEvent;
}
void ScriptEnviroment::addUniqueThing(Thing* thing)
{
Item* item = thing->getItem();
if(!item || !item->getUniqueId())
return;
if(m_globalMap[item->getUniqueId()])
{
if(item->getActionId() != 2000) //scripted quest system
std::clog << "Duplicate uniqueId " << item->getUniqueId() << std::endl;
}
else
m_globalMap[item->getUniqueId()] = thing;
}
void ScriptEnviroment::removeUniqueThing(Thing* thing)
{
Item* item = thing->getItem();
if(!item || !item->getUniqueId())
return;
ThingMap::iterator it = m_globalMap.find(item->getUniqueId());
if(it != m_globalMap.end())
m_globalMap.erase(it);
}
uint32_t ScriptEnviroment::addThing(Thing* thing)
{
if(!thing || thing->isRemoved())
return 0;
for(ThingMap::iterator it = m_localMap.begin(); it != m_localMap.end(); ++it)
{
if(it->second == thing)
return it->first;
}
if(Creature* creature = thing->getCreature())
{
m_localMap[creature->getID()] = thing;
return creature->getID();
}
if(Item* item = thing->getItem())
{
uint32_t tmp = item->getUniqueId();
if(tmp)
{
m_localMap[tmp] = thing;
return tmp;
}
}
while(m_localMap.find(m_lastUID) != m_localMap.end())
++m_lastUID;
m_localMap[m_lastUID] = thing;
return m_lastUID;
}
void ScriptEnviroment::insertThing(uint32_t uid, Thing* thing)
{
if(!m_localMap[uid])
m_localMap[uid] = thing;
else
std::clog << "[Error - ScriptEnviroment::insertThing] Thing uid already taken" << std::endl;
}
Thing* ScriptEnviroment::getThingByUID(uint32_t uid)
{
Thing* tmp = m_localMap[uid];
if(tmp && !tmp->isRemoved())
return tmp;
tmp = m_globalMap[uid];
if(tmp && !tmp->isRemoved())
return tmp;
if(uid >= 0x10000000)
{
tmp = g_game.getCreatureByID(uid);
if(tmp && !tmp->isRemoved())
{
m_localMap[uid] = tmp;
return tmp;
}
}
return NULL;
}
Item* ScriptEnviroment::getItemByUID(uint32_t uid)
{
if(Thing* tmp = getThingByUID(uid))
{
if(Item* item = tmp->getItem())
return item;
}
return NULL;
}
Container* ScriptEnviroment::getContainerByUID(uint32_t uid)
{
if(Item* tmp = getItemByUID(uid))
{
if(Container* container = tmp->getContainer())
return container;
}
return NULL;
}
Creature* ScriptEnviroment::getCreatureByUID(uint32_t uid)
{
if(Thing* tmp = getThingByUID(uid))
{
if(Creature* creature = tmp->getCreature())
return creature;
}
return NULL;
}
Player* ScriptEnviroment::getPlayerByUID(uint32_t uid)
{
if(Thing* tmp = getThingByUID(uid))
{
if(Creature* creature = tmp->getCreature())
{
if(Player* player = creature->getPlayer())
return player;
}
}
return NULL;
}
void ScriptEnviroment::removeThing(uint32_t uid)
{
ThingMap::iterator it;
it = m_localMap.find(uid);
if(it != m_localMap.end())
m_localMap.erase(it);
it = m_globalMap.find(uid);
if(it != m_globalMap.end())
m_globalMap.erase(it);
}
uint32_t ScriptEnviroment::addCombatArea(CombatArea* area)
{
uint32_t newAreaId = m_lastAreaId + 1;
m_areaMap[newAreaId] = area;
m_lastAreaId++;
return newAreaId;
}
CombatArea* ScriptEnviroment::getCombatArea(uint32_t areaId)
{
AreaMap::const_iterator it = m_areaMap.find(areaId);
if(it != m_areaMap.end())
return it->second;
return NULL;
}
uint32_t ScriptEnviroment::addCombatObject(Combat* combat)
{
uint32_t newCombatId = m_lastCombatId + 1;
m_combatMap[newCombatId] = combat;
m_lastCombatId++;
return newCombatId;
}
Combat* ScriptEnviroment::getCombatObject(uint32_t combatId)
{
CombatMap::iterator it = m_combatMap.find(combatId);
if(it != m_combatMap.end())
return it->second;
return NULL;
}
uint32_t ScriptEnviroment::addConditionObject(Condition* condition)
{
m_conditionMap[++m_lastConditionId] = condition;
return m_lastConditionId;
}
uint32_t ScriptEnviroment::addTempConditionObject(Condition* condition)
{
m_conditionMap[++m_lastConditionId] = condition;
return m_lastConditionId;
}
Condition* ScriptEnviroment::getConditionObject(uint32_t conditionId)
{
ConditionMap::iterator it = m_conditionMap.find(conditionId);
if(it != m_conditionMap.end())
return it->second;
it = m_tempConditionMap.find(conditionId);
if(it != m_tempConditionMap.end())
return it->second;
return NULL;
}
void ScriptEnviroment::addTempItem(ScriptEnviroment* env, Item* item)
{
m_tempItems[env].push_back(item);
}
void ScriptEnviroment::removeTempItem(ScriptEnviroment* env, Item* item)
{
ItemList itemList = m_tempItems[env];
ItemList::iterator it = std::find(itemList.begin(), itemList.end(), item);
if(it != itemList.end())
itemList.erase(it);
}
void ScriptEnviroment::removeTempItem(Item* item)
{
for(TempItemListMap::iterator mit = m_tempItems.begin(); mit != m_tempItems.end(); ++mit)
{
ItemList itemList = mit->second;
ItemList::iterator it = std::find(itemList.begin(), itemList.end(), item);
if(it != itemList.end())
itemList.erase(it);
}
}
uint32_t ScriptEnviroment::addResult(DBResult* res)
{
uint32_t lastId = 0;
while(m_tempResults.find(lastId) != m_tempResults.end())
lastId++;
m_tempResults[lastId] = res;
return lastId;
}
bool ScriptEnviroment::removeResult(uint32_t id)
{
DBResultMap::iterator it = m_tempResults.find(id);
if(it == m_tempResults.end())
return false;
if(it->second)
it->second->free();
m_tempResults.erase(it);
return true;
}
DBResult* ScriptEnviroment::getResultByID(uint32_t id)
{
DBResultMap::iterator it = m_tempResults.find(id);
if(it != m_tempResults.end())
return it->second;
return NULL;
}
bool ScriptEnviroment::getStorage(const uint32_t key, std::string& value) const
{
StorageMap::const_iterator it = m_storageMap.find(key);
if(it != m_storageMap.end())
{
value = it->second;
return true;
}
value = "-1";
return false;
}
void ScriptEnviroment::streamVariant(std::stringstream& stream, const std::string& local, const LuaVariant& var)
{
if(!local.empty())
stream << "local " << local << " = {" << std::endl;
stream << "type = " << var.type;
switch(var.type)
{
case VARIANT_NUMBER:
stream << "," << std::endl << "number = " << var.number;
break;
case VARIANT_STRING:
stream << "," << std::endl << "string = \"" << var.text << "\"";
break;
case VARIANT_TARGETPOSITION:
case VARIANT_POSITION:
{
stream << "," << std::endl;
streamPosition(stream, "pos", var.pos);
break;
}
case VARIANT_NONE:
default:
break;
}
if(!local.empty())
stream << std::endl << "}" << std::endl;
}
void ScriptEnviroment::streamThing(std::stringstream& stream, const std::string& local, Thing* thing, uint32_t id/* = 0*/)
{
if(!local.empty())
stream << "local " << local << " = {" << std::endl;
if(thing && thing->getItem())
{
const Item* item = thing->getItem();
if(!id)
id = addThing(thing);
stream << "uid = " << id << "," << std::endl;
stream << "itemid = " << item->getID() << "," << std::endl;
if(item->hasSubType())
stream << "type = " << item->getSubType() << "," << std::endl;
else
stream << "type = 0," << std::endl;
stream << "actionid = " << item->getActionId() << std::endl;
}
else if(thing && thing->getCreature())
{
const Creature* creature = thing->getCreature();
if(!id)
id = creature->getID();
stream << "uid = " << id << "," << std::endl;
stream << "itemid = 1," << std::endl;
if(creature->getPlayer())
stream << "type = 1," << std::endl;
else if(creature->getMonster())
stream << "type = 2," << std::endl;
else
stream << "type = 3," << std::endl;
if(const Player* player = creature->getPlayer())
stream << "actionid = " << player->getGUID() << "," << std::endl;
else
stream << "actionid = 0" << std::endl;
}
else
{
stream << "uid = 0," << std::endl;
stream << "itemid = 0," << std::endl;
stream << "type = 0," << std::endl;
stream << "actionid = 0" << std::endl;
}
if(!local.empty())
stream << "}" << std::endl;
}
void ScriptEnviroment::streamPosition(std::stringstream& stream, const std::string& local, const Position& position, uint32_t stackpos)
{
if(!local.empty())
stream << "local " << local << " = {" << std::endl;
stream << "x = " << position.x << "," << std::endl;
stream << "y = " << position.y << "," << std::endl;
stream << "z = " << position.z << "," << std::endl;
stream << "stackpos = " << stackpos << std::endl;
if(!local.empty())
stream << "}" << std::endl;
}
void ScriptEnviroment::streamOutfit(std::stringstream& stream, const std::string& local, const Outfit_t& outfit)
{
if(!local.empty())
stream << "local " << local << " = {" << std::endl;
stream << "lookType = " << outfit.lookType << "," << std::endl;
stream << "lookTypeEx = " << outfit.lookTypeEx << "," << std::endl;
stream << "lookHead = " << outfit.lookHead << "," << std::endl;
stream << "lookBody = " << outfit.lookBody << "," << std::endl;
stream << "lookLegs = " << outfit.lookLegs << "," << std::endl;
stream << "lookFeet = " << outfit.lookFeet << "," << std::endl;
stream << "lookAddons = " << outfit.lookAddons << std::endl;
if(!local.empty())
stream << "}" << std::endl;
}
std::string LuaInterface::getError(ErrorCode_t code)
{
switch(code)
{
case LUA_ERROR_PLAYER_NOT_FOUND:
return "Player not found";
case LUA_ERROR_MONSTER_NOT_FOUND:
return "Monster not found";
case LUA_ERROR_NPC_NOT_FOUND:
return "NPC not found";
case LUA_ERROR_CREATURE_NOT_FOUND:
return "Creature not found";
case LUA_ERROR_ITEM_NOT_FOUND:
return "Item not found";
case LUA_ERROR_THING_NOT_FOUND:
return "Thing not found";
case LUA_ERROR_TILE_NOT_FOUND:
return "Tile not found";
case LUA_ERROR_HOUSE_NOT_FOUND:
return "House not found";
case LUA_ERROR_COMBAT_NOT_FOUND:
return "Combat not found";
case LUA_ERROR_CONDITION_NOT_FOUND:
return "Condition not found";
case LUA_ERROR_AREA_NOT_FOUND:
return "Area not found";
case LUA_ERROR_CONTAINER_NOT_FOUND:
return "Container not found";
case LUA_ERROR_VARIANT_NOT_FOUND:
return "Variant not found";
case LUA_ERROR_VARIANT_UNKNOWN:
return "Unknown variant type";
case LUA_ERROR_SPELL_NOT_FOUND:
return "Spell not found";
default:
break;
}
return "Invalid error code!";
}
ScriptEnviroment LuaInterface::m_scriptEnv[21];
int32_t LuaInterface::m_scriptEnvIndex = -1;
LuaInterface::LuaInterface(std::string interfaceName)
{
m_luaState = NULL;
m_interfaceName = interfaceName;
m_lastTimer = 1000;
}
LuaInterface::~LuaInterface()
{
for(LuaTimerEvents::iterator it = m_timerEvents.begin(); it != m_timerEvents.end(); ++it)
Scheduler::getInstance().stopEvent(it->second.eventId);
closeState();
}
bool LuaInterface::reInitState()
{
closeState();
return initState();
}
bool LuaInterface::loadBuffer(const std::string& text, Npc* npc/* = NULL*/)
{
//loads buffer as a chunk at stack top
int32_t ret = luaL_loadbuffer(m_luaState, text.c_str(), text.length(), "LuaInterface::loadBuffer");
if(ret)
{
m_lastError = popString(m_luaState);
error(NULL, m_lastError);
return false;
}
//check that it is loaded as a function
if(!lua_isfunction(m_luaState, -1))
return false;
m_loadingFile = text;
reserveEnv();
ScriptEnviroment* env = getEnv();
env->setScriptId(EVENT_ID_LOADING, this);
env->setNpc(npc);
//execute it
ret = lua_pcall(m_luaState, 0, 0, 0);
if(ret)
{
error(NULL, popString(m_luaState));
releaseEnv();
return false;
}
releaseEnv();
return true;
}
bool LuaInterface::loadFile(const std::string& file, Npc* npc/* = NULL*/)
{
//loads file as a chunk at stack top
int32_t ret = luaL_loadfile(m_luaState, file.c_str());
if(ret)
{
m_lastError = popString(m_luaState);
std::clog << "[Error - LuaInterface::loadFile] " << m_lastError << std::endl;
return false;
}
//check that it is loaded as a function
if(!lua_isfunction(m_luaState, -1))
return false;
m_loadingFile = file;
reserveEnv();
ScriptEnviroment* env = getEnv();
env->setScriptId(EVENT_ID_LOADING, this);
env->setNpc(npc);
//execute it
ret = lua_pcall(m_luaState, 0, 0, 0);
if(ret)
{
error(NULL, popString(m_luaState));
releaseEnv();
return false;
}
releaseEnv();
return true;
}
bool LuaInterface::loadDirectory(const std::string& dir, Npc* npc/* = NULL*/)
{
StringVec files;
for(boost::filesystem::directory_iterator it(dir), end; it != end; ++it)
{
std::string s = it->leaf();
if(!boost::filesystem::is_directory(it->status()) && (s.size() > 4 ? s.substr(s.size() - 4) : "") == ".lua")
files.push_back(s);
}
std::sort(files.begin(), files.end());
for(StringVec::iterator it = files.begin(); it != files.end(); ++it)
{
if(!loadFile(dir + (*it), npc))
return false;
}
return true;
}
int32_t LuaInterface::getEvent(const std::string& eventName)
{
//get our events table
lua_getfield(m_luaState, LUA_REGISTRYINDEX, "EVENTS");
if(!lua_istable(m_luaState, -1))
{
lua_pop(m_luaState, 1);
return -1;
}
//get current event function pointer
lua_getglobal(m_luaState, eventName.c_str());
if(!lua_isfunction(m_luaState, -1))
{
lua_pop(m_luaState, 1);
return -1;
}
//save in our events table
lua_pushnumber(m_luaState, m_runningEvent);
lua_pushvalue(m_luaState, -2);
lua_rawset(m_luaState, -4);
lua_pop(m_luaState, 2);
//reset global value of this event
lua_pushnil(m_luaState);
lua_setglobal(m_luaState, eventName.c_str());
m_cacheFiles[m_runningEvent] = m_loadingFile + ":" + eventName;
++m_runningEvent;
return m_runningEvent - 1;
}
std::string LuaInterface::getScript(int32_t scriptId)
{
const static std::string tmp = "(Unknown script file)";
if(scriptId != EVENT_ID_LOADING)
{
ScriptsCache::iterator it = m_cacheFiles.find(scriptId);
if(it != m_cacheFiles.end())
return it->second;
return tmp;
}
return m_loadingFile;
}
void LuaInterface::error(const char* function, const std::string& desc)
{
int32_t script, callback;
bool timer;
std::string event;
LuaInterface* interface;
getEnv()->getInfo(script, event, interface, callback, timer);
if(interface)
{
std::clog << std::endl << "[Error - " << interface->getName() << "] " << std::endl;
if(callback)
std::clog << "In a callback: " << interface->getScript(callback) << std::endl;
if(timer)
std::clog << (callback ? "from" : "In") << " a timer event called from: " << std::endl;
std::clog << interface->getScript(script) << std::endl << "Description: ";
}
else
std::clog << std::endl << "[Lua Error] ";
std::clog << event << std::endl;
if(function)
std::clog << "(" << function << ") ";
std::clog << desc << std::endl;
}
bool LuaInterface::pushFunction(int32_t function)
{
lua_getfield(m_luaState, LUA_REGISTRYINDEX, "EVENTS");
if(lua_istable(m_luaState, -1))
{
lua_pushnumber(m_luaState, function);
lua_rawget(m_luaState, -2);
lua_remove(m_luaState, -2);
if(lua_isfunction(m_luaState, -1))
return true;
}
return false;
}
bool LuaInterface::initState()
{
m_luaState = luaL_newstate();
if(!m_luaState)
return false;
luaL_openlibs(m_luaState);
registerFunctions();
if(!loadDirectory(getFilePath(FILE_TYPE_OTHER, "lib/"), NULL))
std::clog << "[Warning - LuaInterface::initState] Cannot load " << getFilePath(FILE_TYPE_OTHER, "lib/") << std::endl;
lua_newtable(m_luaState);
lua_setfield(m_luaState, LUA_REGISTRYINDEX, "EVENTS");
m_runningEvent = EVENT_ID_USER;
return true;
}
bool LuaInterface::closeState()
{
if(!m_luaState)
return false;
m_cacheFiles.clear();
for(LuaTimerEvents::iterator it = m_timerEvents.begin(); it != m_timerEvents.end(); ++it)
{
for(std::list<int32_t>::iterator lt = it->second.parameters.begin(); lt != it->second.parameters.end(); ++lt)
luaL_unref(m_luaState, LUA_REGISTRYINDEX, *lt);
it->second.parameters.clear();
luaL_unref(m_luaState, LUA_REGISTRYINDEX, it->second.function);
}
m_timerEvents.clear();
lua_close(m_luaState);
return true;
}
void LuaInterface::executeTimer(uint32_t eventIndex)
{
LuaTimerEvents::iterator it = m_timerEvents.find(eventIndex);
if(it != m_timerEvents.end())
{
//push function
lua_rawgeti(m_luaState, LUA_REGISTRYINDEX, it->second.function);
//push parameters
for(std::list<int32_t>::reverse_iterator rt = it->second.parameters.rbegin(); rt != it->second.parameters.rend(); ++rt)
lua_rawgeti(m_luaState, LUA_REGISTRYINDEX, *rt);
//call the function
if(reserveEnv())
{
ScriptEnviroment* env = getEnv();
env->setTimerEvent();
env->setScriptId(it->second.scriptId, this);
callFunction(it->second.parameters.size());
releaseEnv();
}
else
std::clog << "[Error - LuaInterface::executeTimer] Call stack overflow." << std::endl;
//free resources
for(std::list<int32_t>::iterator lt = it->second.parameters.begin(); lt != it->second.parameters.end(); ++lt)
luaL_unref(m_luaState, LUA_REGISTRYINDEX, *lt);
it->second.parameters.clear();
luaL_unref(m_luaState, LUA_REGISTRYINDEX, it->second.function);
m_timerEvents.erase(it);
}
}
int32_t LuaInterface::handleFunction(lua_State* L)
{
lua_getfield(L, LUA_GLOBALSINDEX, "debug");
if(!lua_istable(L, -1))
{
lua_pop(L, 1);
return 1;
}
lua_getfield(L, -1, "traceback");
if(!lua_isfunction(L, -1))
{
lua_pop(L, 2);
return 1;
}
lua_pushvalue(L, 1);
lua_pushinteger(L, 2);
lua_call(L, 2, 1);
return 1;
}
bool LuaInterface::callFunction(uint32_t params)
{
int32_t size = lua_gettop(m_luaState), handler = lua_gettop(m_luaState) - params;
lua_pushcfunction(m_luaState, handleFunction);
bool result = false;
lua_insert(m_luaState, handler);
if(lua_pcall(m_luaState, params, 1, handler))
LuaInterface::error(NULL, LuaInterface::popString(m_luaState));
else
result = (int32_t)LuaInterface::popBoolean(m_luaState);
lua_remove(m_luaState, handler);
if((lua_gettop(m_luaState) + (int32_t)params + 1) != size)
LuaInterface::error(NULL, "Stack size changed!");
return result;
}
void LuaInterface::dumpStack(lua_State* L/* = NULL*/)
{
if(!L)
L = m_luaState;
int32_t stack = lua_gettop(L);
if(!stack)
return;
std::clog << "Stack size: " << stack << std::endl;
for(int32_t i = 1; i <= stack ; ++i)
std::clog << lua_typename(m_luaState, lua_type(m_luaState, -i)) << " " << lua_topointer(m_luaState, -i) << std::endl;
}
void LuaInterface::pushVariant(lua_State* L, const LuaVariant& var)
{
lua_newtable(L);
setField(L, "type", var.type);
switch(var.type)
{
case VARIANT_NUMBER:
setField(L, "number", var.number);
break;
case VARIANT_STRING:
setField(L, "string", var.text);
break;
case VARIANT_TARGETPOSITION:
case VARIANT_POSITION:
{
lua_pushstring(L, "pos");
pushPosition(L, var.pos);
pushTable(L);
break;
}
case VARIANT_NONE:
break;
}
}
void LuaInterface::pushThing(lua_State* L, Thing* thing, uint32_t id/* = 0*/)