A self-calibrating analog clock! The module to the left side detects sun-up via the accumulator (first chargeup is ignored so construction order doesn't impact the numbers) The calibration module then detects the day length and adjusts the start time, and the indicator starts rotating! Self-Calibrat...

I was working on a scheme to detect a train stopped at a closed signal in order to trigger logic, by reading a signal just ahead of the closed signal going red... except it never went red... The right hand signal is permanently closed via logic for this example. The test train is pathing to a temp s...

If there's an open stop elsewhere, the train would simply path to it and carry on. So closing the isolated stop should kick the train back to the load stop. Even just blinking it closed for one tick would be sufficient I'd expect. The real trick will be not closing it if there is a train actually on...

Good to know that fiddling with train limits won't help and why.

I may be able to swing a track isolation detection circuit and close the stop to prevent lockups on the main network. Can't do anything if the train has committed to the final offramp, but that is to be expected.

The picture should hopefully explain it. Can anyone shed some light on the train-brain logic of why it is doing what it is doing so I can design a workaround? Train was on its way, then the station becomes inaccessible (track destroyed). Note: There are still accessible stops, but they are all close...

I spent a few days thinking about how you could multiplex multiple digits with fewer than M combinators. The divide by each, and each modulo 10 part came to me, and I'll use that to save almost 40% on my ETA digit generation :) But I gave up on the display segment compression bit. Turns out I was to...

This does come up in game for Space Exploration mod. Whenever a ship is launched and the contents are cloned to the travel surface, all of our combinator computers get rebooted. Observations: When power is cut, combinators retain their outputs. Even when not connected to any network, the powered-dow...

(Reproduced unmodded, build 59155, linux64) 1) Lay track 2) Add a gate on the track 3) Move train onto gate 4) Clone region. 5) Train evaporates on paste. Ideally, the cloning process should copy the current state of the gate (i.e. lowered) so that the train can be placed as well. This is an issue f...

Inspiration struck and over the last week I made a stock compatible 32 character alphanumeric display with individually addressable colours. (Forget the receiver dish logic and wire your own messages in. Perhaps even make a scrolling marquee since that only requires a simple bit shift with this syst...

for the record, it's not never. run the game sped up and you'll see. I did check. Stops do not get treated like signals according to empirical testing, and no other pathing rules on the wiki's list care about ticks. After 10 minutes of waiting, the train did not repath through (A) + (B) while the b...

I'm certainly not expecting suggestions from random people such as myself to be implemented without consideration. There are already existing rules of very similar nature in existence, as I quoted, so the devs clearly believe this sort of thing is appropriate in general, and it is not impossible. In...

What to keep here in mind is that Factorio doesn’t take the train length into account. It could lead to stupid situations, when the train is longer and tries to go through the circle and back, but now blocking the whole circle and itself. Adjusted formatting. Going into the roundabout cannot block ...

TL;DR Trains can get into a permanently waiting situation which is fairly easy to path out of with existing rules tweaked. What ? #1 1) When pathfinding inside a chain signal sequence, the train's currently occupied block should not be discounted from consideration due to being reserved. 0.17.38: W...

This is a constraint which prevents trains from changing a path while in the intersection when their old path had a valid signal reservations to quit intersection and the new path would go through intersection in a way it would not be able to reserve all the signals required to leave an intersectio...

Ah, that makes sense, thanks. Edit: Although in this case, there is a valid path that avoids the other trains, just not avoiding its own reserved block in the turnaround. I would like to suggest as improvement having the time based penalty applied to trains waiting at stops in addition to trains wai...

Two stops not in schdule have a higher penalty than one with a stoped train. NaB. Dude. What happened to "When a train performs path finding while in a chain signal sequence, the pathfinding will have a constraint to not go through reserved block before exiting the chain sequence."? That'...

Yes. The pathing train has no stops in the area and is heading out to the wider world (originally after delivering my character a load of underground pipes via a temporary stop) The stopped train has been parked for a few minutes and will not likely leave for many minutes more. Meanwhile there is a ...

From the Wiki: 0.17.38: When a train performs path finding while in a chain signal sequence, the pathfinding will have a constraint to not go through reserved block before exiting the chain sequence. This solves a problem of train intersections being possible to be deadlocked even with proper chain ...

I found that resource patches aren't really a big concern. I did set up core drills to get an infinite supply early on though :D Perhaps the biggest way to speed things up from the way my play though has gone so far would be to be more wasteful of human life, and explore more aggressively. :D More c...

When they first appeared, stepping over walls, puddles and acid pools was my primary use case for spidertrons. It did require a pretty high APM to run a disco laser dance party with a squad of spiders and not lose any, but they had a decent expected lifetime regardless. That's no longer possible, si...