Train physics

[ejg]

Does anyone know where I can find the exact train physics (formula's) factorio is using the calculate the speed, acceleration, braking distance etc.? I only have found a lot of empirical stuff but no actual formula's describing the physics currently used.

[DaveMcW]

https://www.reddit.com/r/factorio/comme ... etermined/

[Wackerstamfer]

Yeah, seen that. It's however not exact.

We'll run some tests...

[Optera]

Derived from acceleration code:

Code: Select all

speed[t] = (speed[t-1] - min( speed[t-1]; friction/weight) + power/weight/1000) * (1 - air_resistance/(weight/1000) )

Weight, power and friction is summed across the whole train, air resistance is taken only from the front carriage.

Original post: viewtopic.php?f=66&t=53445&p=312921&hil ... la#p312921