ItemStack read_item(lua_State *L, int index)
{
if(index < 0)
index = lua_gettop(L) + 1 + index;
if(lua_isnil(L, index))
{
return ItemStack();
}
else if(lua_isuserdata(L, index))
{
// Convert from LuaItemStack
LuaItemStack *o = LuaItemStack::checkobject(L, index);
return o->getItem();
}
else if(lua_isstring(L, index))
{
// Convert from itemstring
std::string itemstring = lua_tostring(L, index);
IItemDefManager *idef = get_server(L)->idef();
try
{
ItemStack item;
item.deSerialize(itemstring, idef);
return item;
}
catch(SerializationError &e)
{
infostream<<"WARNING: unable to create item from itemstring"
<<": "<<itemstring<<std::endl;
return ItemStack();
}
}
else if(lua_istable(L, index))
{
// Convert from table
IItemDefManager *idef = get_server(L)->idef();
std::string name = getstringfield_default(L, index, "name", "");
int count = getintfield_default(L, index, "count", 1);
int wear = getintfield_default(L, index, "wear", 0);
std::string metadata = getstringfield_default(L, index, "metadata", "");
return ItemStack(name, count, wear, metadata, idef);
}
else
{
throw LuaError(L, "Expecting itemstack, itemstring, table or nil");
}
}
ItemStack read_item(lua_State* L, int index,Server* srv)
{
if(index < 0)
index = lua_gettop(L) + 1 + index;
if(lua_isnil(L, index))
{
return ItemStack();
}
else if(lua_isuserdata(L, index))
{
// Convert from LuaItemStack
LuaItemStack *o = LuaItemStack::checkobject(L, index);
return o->getItem();
}
else if(lua_isstring(L, index))
{
// Convert from itemstring
std::string itemstring = lua_tostring(L, index);
IItemDefManager *idef = srv->idef();
try
{
ItemStack item;
item.deSerialize(itemstring, idef);
return item;
}
catch(SerializationError &e)
{
warningstream<<"unable to create item from itemstring"
<<": "<<itemstring<<std::endl;
return ItemStack();
}
}
else if(lua_istable(L, index))
{
// Convert from table
IItemDefManager *idef = srv->idef();
std::string name = getstringfield_default(L, index, "name", "");
int count = getintfield_default(L, index, "count", 1);
int wear = getintfield_default(L, index, "wear", 0);
ItemStack istack(name, count, wear, idef);
lua_getfield(L, index, "metadata");
// Support old metadata format by checking type
int fieldstable = lua_gettop(L);
if (lua_istable(L, fieldstable)) {
lua_pushnil(L);
while (lua_next(L, fieldstable) != 0) {
// key at index -2 and value at index -1
std::string key = lua_tostring(L, -2);
size_t value_len;
const char *value_cs = lua_tolstring(L, -1, &value_len);
std::string value(value_cs, value_len);
istack.metadata.setString(name, value);
lua_pop(L, 1); // removes value, keeps key for next iteration
}
} else {
// BACKWARDS COMPATIBLITY
std::string value = getstringfield_default(L, index, "metadata", "");
istack.metadata.setString("", value);
}
lua_getfield(L, index, "meta");
fieldstable = lua_gettop(L);
if (lua_istable(L, fieldstable)) {
lua_pushnil(L);
while (lua_next(L, fieldstable) != 0) {
// key at index -2 and value at index -1
std::string key = lua_tostring(L, -2);
size_t value_len;
const char *value_cs = lua_tolstring(L, -1, &value_len);
std::string value(value_cs, value_len);
istack.metadata.setString(name, value);
lua_pop(L, 1); // removes value, keeps key for next iteration
}
}
return istack;
} else {
throw LuaError("Expecting itemstack, itemstring, table or nil");
}
}
