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Train physics
Posted: Tue Apr 03, 2018 10:58 am
by 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.
Re: Train physics
Posted: Tue Apr 03, 2018 11:51 am
by DaveMcW
Re: Train physics
Posted: Wed Apr 04, 2018 8:13 am
by Wackerstamfer
Yeah, seen that. It's however not exact.
We'll run some tests...
Re: Train physics
Posted: Wed Apr 04, 2018 10:56 am
by 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.
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