int LuaVoxelManip::l_get_data(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

	LuaVoxelManip *o = checkobject(L, 1);
	bool use_buffer  = lua_istable(L, 2);

	MMVManip *vm = o->vm;

	u32 volume = vm->m_area.getVolume();

	if (use_buffer)
		lua_pushvalue(L, 2);
	else
		lua_newtable(L);

	for (u32 i = 0; i != volume; i++) {
		lua_Integer cid = vm->m_data[i].getContent();
		lua_pushinteger(L, cid);
		lua_rawseti(L, -2, i + 1);
	}

	return 1;
}