int NpcScriptInterface::luagetDistanceTo(lua_State* L)
{
//getDistanceTo(uid)
ScriptEnvironment* env = getScriptEnv();
Npc* npc = env->getNpc();
if (!npc) {
reportErrorFunc(getErrorDesc(LUA_ERROR_THING_NOT_FOUND));
lua_pushnil(L);
return 1;
}
uint32_t uid = getNumber<uint32_t>(L, -1);
Thing* thing = env->getThingByUID(uid);
if (!thing) {
reportErrorFunc(getErrorDesc(LUA_ERROR_THING_NOT_FOUND));
lua_pushnil(L);
return 1;
}
const Position& thingPos = thing->getPosition();
const Position& npcPos = npc->getPosition();
if (npcPos.z != thingPos.z) {
lua_pushnumber(L, -1);
} else {
int32_t dist = std::max<int32_t>(Position::getDistanceX(npcPos, thingPos), Position::getDistanceY(npcPos, thingPos));
lua_pushnumber(L, dist);
}
return 1;
}
int32_t NpcScriptInterface::luaGetNpcName(lua_State* L)
{
//getNpcName()
ScriptEnvironment* env = getScriptEnv();
Npc* npc = env->getNpc();
if (npc) {
LuaScriptInterface::pushString(L, npc->getName());
} else {
pushBoolean(L, false);
}
return 1;
}
int32_t NpcScriptInterface::luaSetNpcFocus(lua_State* L)
{
//doNpcSetCreatureFocus(cid)
uint32_t cid = popNumber(L);
ScriptEnvironment* env = getScriptEnv();
Npc* npc = env->getNpc();
if (npc) {
npc->setCreatureFocus(g_game.getCreatureByID(cid));
}
return 0;
}
int32_t NpcScriptInterface::luaActionTurn(lua_State* L)
{
//selfTurn(direction)
Direction dir = (Direction)popNumber(L);
ScriptEnvironment* env = getScriptEnv();
Npc* npc = env->getNpc();
if (npc) {
npc->doTurn(dir);
}
return 0;
}
int32_t NpcScriptInterface::luaSelfGetPos(lua_State* L)
{
//selfGetPosition()
ScriptEnvironment* env = getScriptEnv();
Npc* npc = env->getNpc();
if (npc) {
Position pos = npc->getPosition();
pushPosition(L, pos);
} else {
lua_pushnil(L);
}
return 1;
}
int32_t NpcScriptInterface::luaCloseShopWindow(lua_State* L)
{
//closeShopWindow(cid)
ScriptEnvironment* env = getScriptEnv();
Player* player = g_game.getPlayerByID(popNumber(L));
if (!player) {
reportErrorFunc(getErrorDesc(LUA_ERROR_PLAYER_NOT_FOUND));
pushBoolean(L, false);
return 1;
}
Npc* npc = env->getNpc();
if (!npc) {
reportErrorFunc(getErrorDesc(LUA_ERROR_CREATURE_NOT_FOUND));
pushBoolean(L, false);
return 1;
}
int32_t buyCallback;
int32_t sellCallback;
Npc* merchant = player->getShopOwner(buyCallback, sellCallback);
//Check if we actually have a shop window with this player.
if (merchant == npc) {
player->sendCloseShop();
if (buyCallback != -1) {
luaL_unref(L, LUA_REGISTRYINDEX, buyCallback);
}
if (sellCallback != -1) {
luaL_unref(L, LUA_REGISTRYINDEX, sellCallback);
}
player->setShopOwner(NULL, -1, -1);
npc->removeShopPlayer(player);
}
pushBoolean(L, true);
return 1;
}
int32_t NpcScriptInterface::luaGetNpcPos(lua_State* L)
{
//getNpcPos()
ScriptEnvironment* env = getScriptEnv();
Position pos(0, 0, 0);
uint32_t stackpos = 0;
Npc* npc = env->getNpc();
if (npc) {
pos = npc->getPosition();
stackpos = npc->getParent()->__getIndexOfThing(npc);
}
pushPosition(L, pos, stackpos);
return 1;
}
int32_t NpcScriptInterface::luaGetNpcParameter(lua_State* L)
{
//getNpcParameter(paramKey)
std::string paramKey = popString(L);
ScriptEnvironment* env = getScriptEnv();
Npc* npc = env->getNpc();
if (npc) {
auto it = npc->m_parameters.find(paramKey);
if (it != npc->m_parameters.end()) {
LuaScriptInterface::pushString(L, it->second);
} else {
lua_pushnil(L);
}
} else {
lua_pushnil(L);
}
return 1;
}
int32_t NpcScriptInterface::luaActionFollow(lua_State* L)
{
//selfFollow(cid)
uint32_t cid = popNumber(L);
ScriptEnvironment* env = getScriptEnv();
Player* player = g_game.getPlayerByID(cid);
if (cid != 0 && !player) {
pushBoolean(L, false);
return 1;
}
Npc* npc = env->getNpc();
if (!npc) {
pushBoolean(L, false);
return 1;
}
bool result = npc->setFollowCreature(player, true);
pushBoolean(L, result);
return 1;
}
int32_t NpcScriptInterface::luaOpenShopWindow(lua_State* L)
{
//openShopWindow(cid, items, onBuy callback, onSell callback)
int32_t buyCallback = -1;
int32_t sellCallback = -1;
std::list<ShopInfo> items;
Player* player = NULL;
ScriptEnvironment* env = getScriptEnv();
Npc* npc = env->getNpc();
if (lua_isfunction(L, -1) == 0) {
lua_pop(L, 1); // skip it - use default value
} else {
sellCallback = popCallback(L);
}
if (lua_isfunction(L, -1) == 0) {
lua_pop(L, 1); // skip it - use default value
} else {
buyCallback = popCallback(L);
}
if (lua_istable(L, -1) == 0) {
reportError(__FUNCTION__, "item list is not a table.");
pushBoolean(L, false);
return 1;
}
lua_pushnil(L);
while (lua_next(L, -2) != 0) {
ShopInfo item;
item.itemId = popField<uint32_t>(L, "id");
item.subType = popField<int32_t>(L, "subType");
if (item.subType == 0) {
item.subType = popField<int32_t>(L, "subtype");
}
item.buyPrice = popField<uint32_t>(L, "buy");
item.sellPrice = popField<uint32_t>(L, "sell");
item.realName = popFieldString(L, "name");
items.push_back(item);
lua_pop(L, 1);
}
lua_pop(L, 1);
player = g_game.getPlayerByID(popNumber(L));
if (!player) {
reportErrorFunc(getErrorDesc(LUA_ERROR_PLAYER_NOT_FOUND));
pushBoolean(L, false);
return 1;
}
//Close any eventual other shop window currently open.
player->closeShopWindow(false);
if (!npc) {
reportErrorFunc(getErrorDesc(LUA_ERROR_CREATURE_NOT_FOUND));
pushBoolean(L, false);
return 1;
}
npc->addShopPlayer(player);
player->setShopOwner(npc, buyCallback, sellCallback);
player->openShopWindow(npc, items);
pushBoolean(L, true);
return 1;
}