How to adjust acceleration based parameters?

Unity Engine
1

I’m making racing game and I want to implement car acceleration time, it is acceleration time 0-100 kmh
how to implement it?
for example if I have in my json data property "acceleration": 3
which means 3 seconds, so what parameters I must adjust?
Generally I mean to use physics, I’m using standard assets car prefab based custom model

And see 2 possible ways:

  • to experiment with parameters
  • or map the acceleration time from json data with some method
2

ok so I apply the same force but
for one car add smaller mass so then it accelerates faster
and for second car add higher mass so then accelerates slower
I think this is the temp solution

3

The AddForce method comes with an optional parameter “forceMode” that you can set to ForceMode.Acceleration. This makes acceleration independent of the rigidbodies mass. The mapping you need for 0-100km/h to seconds is:

acceleration = maxSpeed_kmh / 3.6f / seconds0to100

1 Like
4

yes, thanks!