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luascript.cpp
12947 lines (11375 loc) · 337 KB
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luascript.cpp
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/**
* The Forgotten Server - a free and open-source MMORPG server emulator
* Copyright (C) 2015 Mark Samman <mark.samman@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "otpch.h"
#include <boost/range/adaptor/reversed.hpp>
#include "luascript.h"
#include "chat.h"
#include "player.h"
#include "item.h"
#include "game.h"
#include "house.h"
#include "housetile.h"
#include "protocolstatus.h"
#include "combat.h"
#include "spells.h"
#include "condition.h"
#include "monsters.h"
#include "baseevents.h"
#include "iologindata.h"
#include "configmanager.h"
#include "town.h"
#include "vocation.h"
#include "teleport.h"
#include "ban.h"
#include "mounts.h"
#include "databasemanager.h"
#include "bed.h"
#include "monster.h"
#include "scheduler.h"
#include "raids.h"
#include "databasetasks.h"
extern Chat* g_chat;
extern Game g_game;
extern Monsters g_monsters;
extern ConfigManager g_config;
extern Vocations g_vocations;
extern Spells* g_spells;
enum {
EVENT_ID_LOADING = 1,
EVENT_ID_USER = 1000,
};
ScriptEnvironment::ThingMap ScriptEnvironment::m_globalMap;
ScriptEnvironment::DBResultMap ScriptEnvironment::m_tempResults;
uint32_t ScriptEnvironment::m_lastResultId = 0;
ScriptEnvironment::TempItemListMap ScriptEnvironment::m_tempItems;
LuaEnvironment g_luaEnvironment;
ScriptEnvironment::ScriptEnvironment()
{
m_curNpc = nullptr;
resetEnv();
m_lastUID = 70000;
}
ScriptEnvironment::~ScriptEnvironment()
{
resetEnv();
}
void ScriptEnvironment::resetEnv()
{
m_scriptId = 0;
m_callbackId = 0;
m_timerEvent = false;
m_interface = nullptr;
m_localMap.clear();
m_tempResults.clear();
auto it = m_tempItems.find(this);
if (it == m_tempItems.end()) {
return;
}
ItemList& itemList = it->second;
for (Item* item : itemList) {
if (item->getParent() == VirtualCylinder::virtualCylinder) {
g_game.ReleaseItem(item);
}
}
itemList.clear();
}
bool ScriptEnvironment::setCallbackId(int32_t callbackId, LuaScriptInterface* scriptInterface)
{
if (m_callbackId != 0) {
//nested callbacks are not allowed
if (m_interface) {
m_interface->reportErrorFunc("Nested callbacks!");
}
return false;
}
m_callbackId = callbackId;
m_interface = scriptInterface;
return true;
}
void ScriptEnvironment::getEventInfo(int32_t& scriptId, std::string& desc, LuaScriptInterface*& scriptInterface, int32_t& callbackId, bool& timerEvent) const
{
scriptId = m_scriptId;
desc = m_eventdesc;
scriptInterface = m_interface;
callbackId = m_callbackId;
timerEvent = m_timerEvent;
}
void ScriptEnvironment::addUniqueThing(Thing* thing)
{
Item* item = thing->getItem();
if (!item) {
return;
}
uint16_t uniqueId = item->getUniqueId();
if (uniqueId != 0) {
auto it = m_globalMap.find(uniqueId);
if (it == m_globalMap.end()) {
m_globalMap[uniqueId] = thing;
} else {
std::cout << "Duplicate uniqueId " << uniqueId << std::endl;
}
}
}
void ScriptEnvironment::removeUniqueThing(Thing* thing)
{
Item* item = thing->getItem();
if (!item) {
return;
}
uint16_t uniqueId = item->getUniqueId();
if (uniqueId != 0) {
auto it = m_globalMap.find(uniqueId);
if (it != m_globalMap.end()) {
m_globalMap.erase(it);
}
}
}
uint32_t ScriptEnvironment::addThing(Thing* thing)
{
if (!thing || thing->isRemoved()) {
return 0;
}
Creature* creature = thing->getCreature();
if (creature) {
return creature->getID();
}
Item* item = thing->getItem();
if (item) {
uint16_t uid = item->getUniqueId();
if (uid > 0) {
bool isOnTile = false;
const Cylinder* parent = item->getParent();
if (item->getTile() == parent) {
isOnTile = true;
} else if (parent) {
const Container* parentContainer = parent->getContainer();
if (parentContainer && parentContainer->getID() == ITEM_BROWSEFIELD) {
isOnTile = true;
}
}
if (isOnTile) {
if (m_localMap.find(uid) != m_localMap.end()) {
return uid;
}
m_localMap[uid] = thing;
return uid;
}
}
}
for (const auto& it : m_localMap) {
if (it.second == thing) {
return it.first;
}
}
m_localMap[++m_lastUID] = thing;
return m_lastUID;
}
void ScriptEnvironment::insertThing(uint32_t uid, Thing* thing)
{
if (m_localMap.find(uid) == m_localMap.end()) {
m_localMap[uid] = thing;
} else {
std::cout << std::endl << "Lua Script Error: Thing uid already taken.";
}
}
Thing* ScriptEnvironment::getThingByUID(uint32_t uid)
{
if (uid >= 0x10000000) {
return g_game.getCreatureByID(uid);
}
auto it = m_localMap.find(uid);
if (it != m_localMap.end()) {
Thing* thing = it->second;
if (thing && !thing->isRemoved()) {
return thing;
}
}
it = m_globalMap.find(uid);
if (it != m_globalMap.end()) {
Thing* thing = it->second;
if (thing && !thing->isRemoved()) {
return thing;
}
}
return nullptr;
}
Item* ScriptEnvironment::getItemByUID(uint32_t uid)
{
Thing* thing = getThingByUID(uid);
if (!thing) {
return nullptr;
}
return thing->getItem();
}
Container* ScriptEnvironment::getContainerByUID(uint32_t uid)
{
Item* item = getItemByUID(uid);
if (!item) {
return nullptr;
}
return item->getContainer();
}
void ScriptEnvironment::removeItemByUID(uint32_t uid)
{
auto 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);
}
}
void ScriptEnvironment::addTempItem(ScriptEnvironment* env, Item* item)
{
m_tempItems[env].push_back(item);
}
void ScriptEnvironment::removeTempItem(Item* item)
{
for (auto& it : m_tempItems) {
ItemList& itemList = it.second;
auto it_ = std::find(itemList.begin(), itemList.end(), item);
if (it_ != itemList.end()) {
itemList.erase(it_);
break;
}
}
}
uint32_t ScriptEnvironment::addResult(DBResult_ptr res)
{
m_tempResults[++m_lastResultId] = res;
return m_lastResultId;
}
bool ScriptEnvironment::removeResult(uint32_t id)
{
auto it = m_tempResults.find(id);
if (it == m_tempResults.end()) {
return false;
}
m_tempResults.erase(it);
return true;
}
DBResult_ptr ScriptEnvironment::getResultByID(uint32_t id)
{
auto it = m_tempResults.find(id);
if (it == m_tempResults.end()) {
return nullptr;
}
return it->second;
}
std::string LuaScriptInterface::getErrorDesc(ErrorCode_t code)
{
switch (code) {
case LUA_ERROR_PLAYER_NOT_FOUND: return "Player 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: return "Bad error code";
}
}
ScriptEnvironment LuaScriptInterface::m_scriptEnv[16];
int32_t LuaScriptInterface::m_scriptEnvIndex = -1;
LuaScriptInterface::LuaScriptInterface(const std::string& interfaceName)
{
m_eventTableRef = -1;
m_luaState = nullptr;
m_interfaceName = interfaceName;
if (!g_luaEnvironment.getLuaState()) {
g_luaEnvironment.initState();
}
}
LuaScriptInterface::~LuaScriptInterface()
{
closeState();
}
bool LuaScriptInterface::reInitState()
{
g_luaEnvironment.clearCombatObjects(this);
g_luaEnvironment.clearAreaObjects(this);
closeState();
return initState();
}
/// Same as lua_pcall, but adds stack trace to error strings in called function.
int32_t LuaScriptInterface::protectedCall(lua_State* L, int32_t nargs, int32_t nresults)
{
int32_t error_index = lua_gettop(L) - nargs;
lua_pushcfunction(L, luaErrorHandler);
lua_insert(L, error_index);
int32_t ret = lua_pcall(L, nargs, nresults, error_index);
lua_remove(L, error_index);
return ret;
}
int32_t LuaScriptInterface::loadFile(const std::string& file, Npc* npc /* = nullptr*/)
{
//loads file as a chunk at stack top
int32_t ret = luaL_loadfile(m_luaState, file.c_str());
if (ret != 0) {
m_lastLuaError = popString(m_luaState);
return -1;
}
//check that it is loaded as a function
if (!isFunction(m_luaState, -1)) {
return -1;
}
m_loadingFile = file;
if (!reserveScriptEnv()) {
return -1;
}
ScriptEnvironment* env = getScriptEnv();
env->setScriptId(EVENT_ID_LOADING, this);
env->setNpc(npc);
//execute it
ret = protectedCall(m_luaState, 0, 0);
if (ret != 0) {
reportError(nullptr, popString(m_luaState));
resetScriptEnv();
return -1;
}
resetScriptEnv();
return 0;
}
int32_t LuaScriptInterface::getEvent(const std::string& eventName)
{
//get our events table
lua_rawgeti(m_luaState, LUA_REGISTRYINDEX, m_eventTableRef);
if (!isTable(m_luaState, -1)) {
lua_pop(m_luaState, 1);
return -1;
}
//get current event function pointer
lua_getglobal(m_luaState, eventName.c_str());
if (!isFunction(m_luaState, -1)) {
lua_pop(m_luaState, 2);
return -1;
}
//save in our events table
lua_pushvalue(m_luaState, -1);
lua_rawseti(m_luaState, -3, m_runningEventId);
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_runningEventId] = m_loadingFile + ":" + eventName;
return m_runningEventId++;
}
int32_t LuaScriptInterface::getMetaEvent(const std::string& globalName, const std::string& eventName)
{
//get our events table
lua_rawgeti(m_luaState, LUA_REGISTRYINDEX, m_eventTableRef);
if (!isTable(m_luaState, -1)) {
lua_pop(m_luaState, 1);
return -1;
}
//get current event function pointer
lua_getglobal(m_luaState, globalName.c_str());
lua_getfield(m_luaState, -1, eventName.c_str());
if (!isFunction(m_luaState, -1)) {
lua_pop(m_luaState, 3);
return -1;
}
//save in our events table
lua_pushvalue(m_luaState, -1);
lua_rawseti(m_luaState, -4, m_runningEventId);
lua_pop(m_luaState, 1);
//reset global value of this event
lua_pushnil(m_luaState);
lua_setfield(m_luaState, -2, eventName.c_str());
lua_pop(m_luaState, 2);
m_cacheFiles[m_runningEventId] = m_loadingFile + ":" + globalName + "@" + eventName;
return m_runningEventId++;
}
const std::string& LuaScriptInterface::getFileById(int32_t scriptId)
{
if (scriptId == EVENT_ID_LOADING) {
return m_loadingFile;
}
auto it = m_cacheFiles.find(scriptId);
if (it == m_cacheFiles.end()) {
static const std::string& unk = "(Unknown scriptfile)";
return unk;
}
return it->second;
}
std::string LuaScriptInterface::getStackTrace(const std::string& error_desc)
{
lua_getglobal(m_luaState, "debug");
if (!isTable(m_luaState, -1)) {
lua_pop(m_luaState, 1);
return error_desc;
}
lua_getfield(m_luaState, -1, "traceback");
if (!isFunction(m_luaState, -1)) {
lua_pop(m_luaState, 2);
return error_desc;
}
lua_replace(m_luaState, -2);
pushString(m_luaState, error_desc);
lua_call(m_luaState, 1, 1);
return popString(m_luaState);
}
void LuaScriptInterface::reportError(const char* function, const std::string& error_desc, bool stack_trace/* = false*/)
{
int32_t scriptId;
int32_t callbackId;
bool timerEvent;
std::string event_desc;
LuaScriptInterface* scriptInterface;
getScriptEnv()->getEventInfo(scriptId, event_desc, scriptInterface, callbackId, timerEvent);
std::cout << std::endl << "Lua Script Error: ";
if (scriptInterface) {
std::cout << '[' << scriptInterface->getInterfaceName() << "] " << std::endl;
if (timerEvent) {
std::cout << "in a timer event called from: " << std::endl;
}
if (callbackId) {
std::cout << "in callback: " << scriptInterface->getFileById(callbackId) << std::endl;
}
std::cout << scriptInterface->getFileById(scriptId) << std::endl;
}
if (!event_desc.empty()) {
std::cout << "Event: " << event_desc << std::endl;
}
if (function) {
std::cout << function << "(). ";
}
if (stack_trace && scriptInterface) {
std::cout << scriptInterface->getStackTrace(error_desc) << std::endl;
} else {
std::cout << error_desc << std::endl;
}
}
bool LuaScriptInterface::pushFunction(int32_t functionId)
{
lua_rawgeti(m_luaState, LUA_REGISTRYINDEX, m_eventTableRef);
if (!isTable(m_luaState, -1)) {
return false;
}
lua_rawgeti(m_luaState, -1, functionId);
lua_replace(m_luaState, -2);
return isFunction(m_luaState, -1);
}
bool LuaScriptInterface::initState()
{
m_luaState = g_luaEnvironment.getLuaState();
if (!m_luaState) {
return false;
}
lua_newtable(m_luaState);
m_eventTableRef = luaL_ref(m_luaState, LUA_REGISTRYINDEX);
m_runningEventId = EVENT_ID_USER;
return true;
}
bool LuaScriptInterface::closeState()
{
if (!g_luaEnvironment.getLuaState() || !m_luaState) {
return false;
}
m_cacheFiles.clear();
if (m_eventTableRef != -1) {
luaL_unref(m_luaState, LUA_REGISTRYINDEX, m_eventTableRef);
m_eventTableRef = -1;
}
m_luaState = nullptr;
return true;
}
int32_t LuaScriptInterface::luaErrorHandler(lua_State* L)
{
const std::string& errorMessage = popString(L);
pushString(L, getScriptEnv()->getScriptInterface()->getStackTrace(errorMessage));
return 1;
}
bool LuaScriptInterface::callFunction(int32_t params)
{
bool result = false;
int32_t size = lua_gettop(m_luaState);
if (protectedCall(m_luaState, params, 1) != 0) {
LuaScriptInterface::reportError(nullptr, LuaScriptInterface::getString(m_luaState, -1));
} else {
result = LuaScriptInterface::getBoolean(m_luaState, -1);
}
lua_pop(m_luaState, 1);
if ((lua_gettop(m_luaState) + params + 1) != size) {
LuaScriptInterface::reportError(nullptr, "Stack size changed!");
}
resetScriptEnv();
return result;
}
void LuaScriptInterface::callVoidFunction(int32_t params)
{
int32_t size = lua_gettop(m_luaState);
if (protectedCall(m_luaState, params, 0) != 0) {
LuaScriptInterface::reportError(nullptr, LuaScriptInterface::popString(m_luaState));
}
if ((lua_gettop(m_luaState) + params + 1) != size) {
LuaScriptInterface::reportError(nullptr, "Stack size changed!");
}
resetScriptEnv();
}
void LuaScriptInterface::pushVariant(lua_State* L, const LuaVariant& var)
{
lua_createtable(L, 0, 2);
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: {
pushPosition(L, var.pos, var.pos.stackpos);
lua_setfield(L, -2, "pos");
break;
}
default:
break;
}
setMetatable(L, -1, "Variant");
}
void LuaScriptInterface::pushThing(lua_State* L, Thing* thing)
{
if (!thing) {
lua_createtable(L, 0, 4);
setField(L, "uid", 0);
setField(L, "itemid", 0);
setField(L, "actionid", 0);
setField(L, "type", 0);
return;
}
if (Item* item = thing->getItem()) {
pushUserdata<Item>(L, item);
setItemMetatable(L, -1, item);
} else if (Creature* creature = thing->getCreature()) {
pushUserdata<Creature>(L, creature);
setCreatureMetatable(L, -1, creature);
} else {
lua_pushnil(L);
}
}
void LuaScriptInterface::pushString(lua_State* L, const std::string& value)
{
lua_pushlstring(L, value.c_str(), value.length());
}
void LuaScriptInterface::pushCallback(lua_State* L, int32_t callback)
{
lua_rawgeti(L, LUA_REGISTRYINDEX, callback);
}
std::string LuaScriptInterface::popString(lua_State* L)
{
if (lua_gettop(L) == 0) {
return std::string();
}
std::string str(getString(L, -1));
lua_pop(L, 1);
return str;
}
int32_t LuaScriptInterface::popCallback(lua_State* L)
{
return luaL_ref(L, LUA_REGISTRYINDEX);
}
// Metatables
void LuaScriptInterface::setMetatable(lua_State* L, int32_t index, const std::string& name)
{
luaL_getmetatable(L, name.c_str());
lua_setmetatable(L, index - 1);
}
void LuaScriptInterface::setWeakMetatable(lua_State* L, int32_t index, const std::string& name)
{
static std::set<std::string> weakObjectTypes;
const std::string& weakName = name + "_weak";
if (weakObjectTypes.find(name) == weakObjectTypes.end()) {
luaL_getmetatable(L, name.c_str());
int32_t childMetatable = lua_gettop(L);
luaL_newmetatable(L, weakName.c_str());
int32_t metatable = lua_gettop(L);
static const std::vector<std::string> methodKeys = {"__index", "__metatable", "__eq"};
for (const std::string& metaKey : methodKeys) {
lua_getfield(L, childMetatable, metaKey.c_str());
lua_setfield(L, metatable, metaKey.c_str());
}
static const std::vector<int32_t> methodIndexes = {'h', 'p', 't'};
for (int32_t metaIndex : methodIndexes) {
lua_rawgeti(L, childMetatable, metaIndex);
lua_rawseti(L, metatable, metaIndex);
}
lua_pushnil(L);
lua_setfield(L, metatable, "__gc");
lua_remove(L, childMetatable);
weakObjectTypes.insert(name);
} else {
luaL_getmetatable(L, weakName.c_str());
}
lua_setmetatable(L, index - 1);
}
void LuaScriptInterface::setItemMetatable(lua_State* L, int32_t index, const Item* item)
{
if (item->getContainer()) {
luaL_getmetatable(L, "Container");
} else if (item->getTeleport()) {
luaL_getmetatable(L, "Teleport");
} else {
luaL_getmetatable(L, "Item");
}
lua_setmetatable(L, index - 1);
}
void LuaScriptInterface::setCreatureMetatable(lua_State* L, int32_t index, const Creature* creature)
{
if (creature->getPlayer()) {
luaL_getmetatable(L, "Player");
} else if (creature->getMonster()) {
luaL_getmetatable(L, "Monster");
} else {
luaL_getmetatable(L, "Npc");
}
lua_setmetatable(L, index - 1);
}
// Get
std::string LuaScriptInterface::getString(lua_State* L, int32_t arg)
{
size_t len;
const char* c_str = lua_tolstring(L, arg, &len);
if (!c_str || len == 0) {
return std::string();
}
return std::string(c_str, len);
}
Position LuaScriptInterface::getPosition(lua_State* L, int32_t arg, int32_t& stackpos)
{
Position position;
position.x = getField<uint16_t>(L, arg, "x");
position.y = getField<uint16_t>(L, arg, "y");
position.z = getField<uint8_t>(L, arg, "z");
lua_getfield(L, arg, "stackpos");
if (lua_isnil(L, -1) == 1) {
stackpos = 0;
} else {
stackpos = getNumber<int32_t>(L, -1);
}
lua_pop(L, 4);
return position;
}
Position LuaScriptInterface::getPosition(lua_State* L, int32_t arg)
{
Position position;
position.x = getField<uint16_t>(L, arg, "x");
position.y = getField<uint16_t>(L, arg, "y");
position.z = getField<uint8_t>(L, arg, "z");
lua_pop(L, 3);
return position;
}
Outfit_t LuaScriptInterface::getOutfit(lua_State* L, int32_t arg)
{
Outfit_t outfit;
outfit.lookMount = getField<uint16_t>(L, arg, "lookMount");
outfit.lookAddons = getField<uint8_t>(L, arg, "lookAddons");
outfit.lookFeet = getField<uint8_t>(L, arg, "lookFeet");
outfit.lookLegs = getField<uint8_t>(L, arg, "lookLegs");
outfit.lookBody = getField<uint8_t>(L, arg, "lookBody");
outfit.lookHead = getField<uint8_t>(L, arg, "lookHead");
outfit.lookTypeEx = getField<uint16_t>(L, arg, "lookTypeEx");
outfit.lookType = getField<uint16_t>(L, arg, "lookType");
lua_pop(L, 8);
return outfit;
}
LuaVariant LuaScriptInterface::getVariant(lua_State* L, int32_t arg)
{
LuaVariant var;
switch (var.type = getField<LuaVariantType_t>(L, arg, "type")) {
case VARIANT_NUMBER: {
var.number = getField<uint32_t>(L, arg, "number");
lua_pop(L, 2);
break;
}
case VARIANT_STRING: {
var.text = getFieldString(L, arg, "string");
lua_pop(L, 2);
break;
}
case VARIANT_POSITION:
case VARIANT_TARGETPOSITION: {
lua_getfield(L, arg, "pos");
var.pos = getPosition(L, lua_gettop(L));
lua_pop(L, 2);
break;
}
default: {
var.type = VARIANT_NONE;
lua_pop(L, 1);
break;
}
}
return var;
}
Thing* LuaScriptInterface::getThing(lua_State* L, int32_t arg)
{
Thing* thing;
if (lua_getmetatable(L, arg) != 0) {
lua_rawgeti(L, -1, 't');
switch(getNumber<uint32_t>(L, -1)) {
case LuaData_Item:
thing = getUserdata<Item>(L, arg);
break;
case LuaData_Container:
thing = getUserdata<Container>(L, arg);
break;
case LuaData_Teleport:
thing = getUserdata<Teleport>(L, arg);
break;
case LuaData_Player:
thing = getUserdata<Player>(L, arg);
break;
case LuaData_Monster:
thing = getUserdata<Monster>(L, arg);
break;
case LuaData_Npc:
thing = getUserdata<Npc>(L, arg);
break;
default:
thing = nullptr;
break;
}
lua_pop(L, 2);
} else {
thing = getScriptEnv()->getThingByUID(getNumber<uint32_t>(L, arg));
}
return thing;
}
Creature* LuaScriptInterface::getCreature(lua_State* L, int32_t arg)
{
if (isUserdata(L, arg)) {
return getUserdata<Creature>(L, arg);
}
return g_game.getCreatureByID(getNumber<uint32_t>(L, arg));
}
Player* LuaScriptInterface::getPlayer(lua_State* L, int32_t arg)
{
if (isUserdata(L, arg)) {
return getUserdata<Player>(L, arg);
}
return g_game.getPlayerByID(getNumber<uint32_t>(L, arg));
}
std::string LuaScriptInterface::getFieldString(lua_State* L, int32_t arg, const std::string& key)
{
lua_getfield(L, arg, key.c_str());
return getString(L, -1);
}
LuaDataType LuaScriptInterface::getUserdataType(lua_State* L, int32_t arg)
{
if (lua_getmetatable(L, arg) == 0) {
return LuaData_Unknown;
}
lua_rawgeti(L, -1, 't');
LuaDataType type = getNumber<LuaDataType>(L, -1);
lua_pop(L, 2);
return type;
}
// Push
void LuaScriptInterface::pushBoolean(lua_State* L, bool value)
{
lua_pushboolean(L, value ? 1 : 0);
}
void LuaScriptInterface::pushPosition(lua_State* L, const Position& position, int32_t stackpos/* = 0*/)
{
lua_createtable(L, 0, 4);
setField(L, "x", position.x);
setField(L, "y", position.y);
setField(L, "z", position.z);
setField(L, "stackpos", stackpos);
setMetatable(L, -1, "Position");
}
void LuaScriptInterface::pushOutfit(lua_State* L, const Outfit_t& outfit)
{
lua_createtable(L, 0, 8);
setField(L, "lookType", outfit.lookType);
setField(L, "lookTypeEx", outfit.lookTypeEx);
setField(L, "lookHead", outfit.lookHead);
setField(L, "lookBody", outfit.lookBody);
setField(L, "lookLegs", outfit.lookLegs);
setField(L, "lookFeet", outfit.lookFeet);
setField(L, "lookAddons", outfit.lookAddons);
setField(L, "lookMount", outfit.lookMount);
}
#define registerEnum(value) { std::string enumName = #value; registerGlobalVariable(enumName.substr(enumName.find_last_of(':') + 1), value); }
#define registerEnumIn(tableName, value) { std::string enumName = #value; registerVariable(tableName, enumName.substr(enumName.find_last_of(':') + 1), value); }
void LuaScriptInterface::registerFunctions()
{
//getPlayerFlagValue(cid, flag)
lua_register(m_luaState, "getPlayerFlagValue", LuaScriptInterface::luaGetPlayerFlagValue);
//getPlayerInstantSpellCount(cid)
lua_register(m_luaState, "getPlayerInstantSpellCount", LuaScriptInterface::luaGetPlayerInstantSpellCount);
//getPlayerInstantSpellInfo(cid, index)
lua_register(m_luaState, "getPlayerInstantSpellInfo", LuaScriptInterface::luaGetPlayerInstantSpellInfo);
//getThingfromPos(pos)
lua_register(m_luaState, "getThingfromPos", LuaScriptInterface::luaGetThingfromPos);
//doPlayerAddItem(uid, itemid, <optional: default: 1> count/subtype)
//doPlayerAddItem(cid, itemid, <optional: default: 1> count, <optional: default: 1> canDropOnMap, <optional: default: 1>subtype)
//Returns uid of the created item
lua_register(m_luaState, "doPlayerAddItem", LuaScriptInterface::luaDoPlayerAddItem);
//doCreateItem(itemid, type/count, pos)
//Returns uid of the created item, only works on tiles.
lua_register(m_luaState, "doCreateItem", LuaScriptInterface::luaDoCreateItem);
//doCreateItemEx(itemid, <optional> count/subtype)
lua_register(m_luaState, "doCreateItemEx", LuaScriptInterface::luaDoCreateItemEx);
//doTileAddItemEx(pos, uid)
lua_register(m_luaState, "doTileAddItemEx", LuaScriptInterface::luaDoTileAddItemEx);
//doAddCondition(cid, condition)
lua_register(m_luaState, "doAddCondition", LuaScriptInterface::luaDoAddCondition);
//doRemoveCondition(cid, type[, subId])
lua_register(m_luaState, "doRemoveCondition", LuaScriptInterface::luaDoRemoveCondition);
//doMoveCreature(cid, direction)
lua_register(m_luaState, "doMoveCreature", LuaScriptInterface::luaDoMoveCreature);
//doSetCreatureLight(cid, lightLevel, lightColor, time)