Combinator which can read entity

[DirtyBitch]

It would be awesome to have combinator which can read neigbour entity like a SINGLE train wagon or a car or a tank and output it on wire.

[DaleStan]

You're looking for https://mods.factorio.com/mods/Optera/I ... y%20Sensor

[ptx0]

You're looking for https://mods.factorio.com/mods/Optera/I ... y%20Sensor

mods have to implement this in a really performance intensive manner, but the base game could implement it as a part of the entity update.

[Optera]

You're looking for https://mods.factorio.com/mods/Optera/I ... y%20Sensor

mods have to implement this in a really performance intensive manner, but the base game could implement it as a part of the entity update.

Yes, polling trains (in manual mode) and cars really hurt performance. That's why IS has an option to only read automatic trains, which is a fair bit better than polling every n ticks.
Reading entire trains from train stops though is the way to go.

[ptx0]

Yes, polling trains (in manual mode) and cars really hurt performance. That's why IS has an option to only read automatic trains, which is a fair bit better than polling every n ticks.
Reading entire trains from train stops though is the way to go.

or use a buffer box at each wagon and measure that - it'll indicate when one is empty and the others aren't

doesn't it poll every n ticks even for automatic trains?

[Optera]

doesn't it poll every n ticks even for automatic trains?

Technically yes, but it reads from a cached entity and doesn't have to run find_entities to see if the thing is still there.