This change puts a serious damper in my plans to max out SPM on a "waterless" world. I'd be limited to a few dozen spidertrons and couldn't replace them if they died.

Hex floats are really only helpful for debugging purposes. 17 decimal digits is enough to guarantee being able to round trip back to the same float. The only hard part about it is trying to know when rounding to 16 digits will also round trip back to the same number. My code above gets kinda close, ...

LuaPlayer.build_from_cursor now has a mirror parameter but it doesn't seem to function for blueprints. I think making that work for blueprints would be the best way to resolve this issue for us.

Whether this section is active. This can only be written to when the section is manual. The GUI lets players toggle the active member of logistic points for all types except circuit-controlled. It would be nice if the API access could also set the active member for types transitional_request_contro...

I think that should be possible if users unchecked the "Use different mod settings per save". But that may have unintended consequences for other mods/ this mod. I wish there was an option to specify that the setting should always be synchronized for things like user interface preferences ...

I'm pretty sure they should be available at get_logistic_points(defines.logistic_member_index.logistic_container).sections, but when I try that it's an empty table even for a roboport that has multiple non-empty sections.

I looked into how printf works and it has a bunch of stuff to handle full precision with multiprecision numbers. It seemed like it would actually be pretty slow, so I decided I'd try my hand at it: #include <iostream> #include <cmath> //precondition: pos points to somewhere in a buffer that has at /...

Ok, I got nerd sniped by this one. At first I thought the decimals were just the exact representation of a double that was actually used... but they're not. They all seem to be exactly a tenth/fifth of a number that's exactly representable as double. For the numbers to come out like this, the double...

I can confirm Sir Fendi's findings:
Before: After: Result:

When a mod's on_init handler fails from creating a save file from the gui it gets reported and prevents the new save from being played. When a save game is created via the --create command line flag, the error is reported via stdout. However, the save game file is still created and the error does no...

To clarify we already have player.start_selection. We'd just like to be able to control where the end of the selection is too. That could be with a new command specific to selection tool manipulation, or a command that could set the player's cursor position that we could call before player.start_sel...

you can modify the whole surface's solar output. https://lua-api.factorio.com/latest/cla ... multiplier
This is probably the only meaningful way to modify the output anyway, as large number of independently fluctuating random variables would just average out.

I'm wondering if there's any way to set the end point for a selection tool. In the API there's LuaPlayer.start_selection which allows you to modify or start the selection of a selection tool, but it always completes at the current cursor position, which doesn't seem to be modifiable even through Lua...

There's also a freeplay interface for setting the starting items if you want to use that.

You can check in base/scenarios/freeplay/freeplay.lua for how to call it.

I realize this is 7 years old but for future people who might stumble upon this, there's now: FMTK

I think that's the least hacky method:

SE seems to do something similar with their spaceship clamps which are a constant combinator and a electric pole. The electric pole has an placeableby of an se-struct-generic-clamp-east item, but that item has nil for it's place result. Blueprints handle making the ghosts, and then the mod calls rev...

there should be very few differences to run on Windows Therein lies the problem. My python and node programs worked fine on Linux, but crashed on windows if they attempted to write to the stdin pipe after Factorio was running for about 80ms. So, I think that's when Factorio does something confusing...

Thanks. I thought it would be a better fit for the wiki, but I didn't really know how to submit a request for information on the wiki.

I've been debugging an issue with communicating to stdin on windows for a few days now and would love some insight. I was surprised to learn that the in-game console commands are available over stdin while running a headless server. I haven't really found much official documentation on it other than...