The output of serpent.block may change if a table in the global table is copied using table.deepcopy Steps to reproduce: - create a table that may change with /c global.t = { item_counts = {50, 50, 50, 50, 32, [31] = 50, [32] = 50, [33] = 50, [34] = 50, [35] = 50, [36] = 50, [37] = 32} } - save the ...

Most of the things in the editor makes sense and easy to discover by clicking on things and trying it out. But I'm far from alone with being stumped about how to place tiles on out-of-map tiles. Doing it like how GIMP does would help a lot (see image below). gimp.png PS: I might have been unclear, b...

I tested it on 0.17.62 just now and they don't all move to the centre. Is this fixed for the next version or something? (groups still stay stuck on the shore, save is one tick before one of the groups that get stuck spawns.)

OMG. What a dumb hidden modifier. Why doesn't the interface tell you to "hold shift to place over out-of-map"?

Well, it is what they say. If a user can't find a feature it doesn't exist.

Edit: Worst of all is that I searched for this and somehow missed it being already reported.

Using the tile editing in paint brush mode you can place out-of-map tiles (black void) but you can't paint any normal tiles back over it. But you can use the flood fill on them, including outside the map bounds (which lags a lot and creates a weird situation where there's land but the mini-map doesn...

I've made a Discord bot that monitors the multiplayer games list and sends updates when a specific ones disappears or reappears from the list. Summed up in one picture: upbot.png You can add it to your own Discord server with this link . It's currently very basic in functionality. You can add the Fa...

I'm making a Discord bot for notifying when Factorio servers go offline and I noticed multiplayer.factorio.com has a nice api for discovering servers. Can I periodically query it, say once a minute in order to make my bot work?

This issue has not been fixed. When the server sends a 10kb ServerToClientHeartbeat message in 0.17.59 it still shows the same behavior where the client endlessly request it be resent in full but the full message is never received by the client.

I'm not too sure how much this a bug or not, but when I spawned unit groups and set_command on it to attack area spawn it randomly fails. See the attached save. After one tick the unit group is spawned and the command is set (set_moving is also done, but not doing does not affect the outcome). One t...

The pathfinder for biters treat cliffs as something that can be walked through if the path around is too long or there isn't any path to the target due to cliffs then they will just path straight through them. See attached image. This get especially bad if game.map_settings.path_finder.general_entit...

slippycheeze it's nice that you want to provide insightful information on the pitfalls of network programming, but I think you're missing a vital piece of information. The Factorio protocol fragments messages larger than about 500 bytes, no UDP packet greater than about 510 bytes is ever sent by eit...

When I export a newly created upgrade planner with no slots set and then import it again it prints the following error to the console. Error while importing string: Value must be a list or dictionary in property tree at ROOT.upgrade_planner.settings.mappers Steps to reproduce - Create an empty upgra...

When UDP packets are received they are placed into a receive queue by the network layer. The size of this queue varies by system. On Windows 7 this is controlled by a network layer called AFD (Ancillary Function Driver for Winsock) and defaults to 8192 bytes. When packets are read from the socket th...

Oh, I missed that one, but I still think this is really confusing. The error message would make more sense if it said "--use-server-whitelist must be set when --server-whitelist is set" it didn't occur to me that these where command line options. But what I really find objectionable with the whiteli...

When configuring Factorio servers it's easy to make a typo, or use the wrong name for a setting. When you start the server there's no feedback on whether everything in config was understood. This leads to problems that could have easily been avoided if the server admin was made aware of the mistake....

Using the --server-whitelist command line parameter on Linux headless causes it to fail with the message 0.522 Error Main.cpp:662: use-server-whitelist must be set when server-whitelist is set. use-server-whitelist is undocumented. There's enable-whitelist in config.ini, but setting either of these ...

There's currently a clusterio event that's being tested that uses train teleportation to transfer items between servers. It uses scenario modding and automated server commands to accomplish this. The test server I'm able to reproduce this problem with is called [Gridlock Test Cluster] Westeros. When...

When trying out 0.17, the existing blueprint library from 0.16 is migrated to a new format if you change anything in it. This causes it to become unreadable in 0.16 (see attached image). This is bad, as steam users that want to try out 0.17, but then go back to 0.16 is likely to lose their 0.16 blue...

There was a time when I cared deeply for my achievements. But then one day I joined a multiplayer server and a saw a couple of them just fly by me without ever giving me the chance to earn them (yes this was before the time limit was introduced.) It left a sour taste. Some time later I finished the ...

When running headless Factorio on my Arch Linux server located on LAN the "Server is not responding" dialog appears for a few seconds every half minute or so when I connect to it. Looking at the packet capture from the server, a DNS lookup to pingpong1.factorio.com happens before every time the serv...