static int read_persistent(lua_State *state, PersistentDataItem ref, bool create)
{
if (!ref.isValid())
{
lua_pushnil(state);
lua_pushstring(state, "entry not found");
return 2;
}
if (create)
lua_createtable(state, 0, 4);
lua_pushvalue(state, lua_upvalueindex(1));
lua_setmetatable(state, -2);
lua_pushinteger(state, ref.entry_id());
lua_setfield(state, -2, "entry_id");
lua_pushstring(state, ref.key().c_str());
lua_setfield(state, -2, "key");
lua_pushstring(state, ref.val().c_str());
lua_setfield(state, -2, "value");
lua_createtable(state, PersistentDataItem::NumInts, 0);
for (int i = 0; i < PersistentDataItem::NumInts; i++)
{
lua_pushinteger(state, ref.ival(i));
lua_rawseti(state, -2, i+1);
}
lua_setfield(state, -2, "ints");
return 1;
}
bool World::DeletePersistentData(const PersistentDataItem &item)
{
int id = item.raw_id();
if (id > -100)
return false;
if (!BuildPersistentCache())
return false;
stl::vector<df::historical_figure*> &hfvec = df::historical_figure::get_vector();
auto eqrange = persistent_index.equal_range(item.key());
for (auto it2 = eqrange.first; it2 != eqrange.second; )
{
auto it = it2; ++it2;
if (it->second != -id)
continue;
persistent_index.erase(it);
int idx = binsearch_index(hfvec, id);
if (idx >= 0) {
delete hfvec[idx];
hfvec.erase(hfvec.begin()+idx);
}
return true;
}
return false;
}
static PersistentDataItem persistent_by_struct(lua_State *state, int idx)
{
lua_getfield(state, idx, "entry_id");
int id = lua_tointeger(state, -1);
lua_pop(state, 1);
PersistentDataItem ref = Core::getInstance().getWorld()->GetPersistentData(id);
if (ref.isValid())
{
lua_getfield(state, idx, "key");
const char *str = lua_tostring(state, -1);
if (!str || str != ref.key())
luaL_argerror(state, idx, "inconsistent id and key");
lua_pop(state, 1);
}
return ref;
}
