Car wheels turn inwards in play mode

Unity Engine
1

Hi,
I hope this is the right section. I’ve been trying to make some cars driveable. The problem with these cars is that their forward direction is set to Y instead of Z so the cars go forwards when I reverse and they go backwards when I accelerate. It is fixed by making the car GameObject a child object of an empty GameObject and rotating the car GameObject by 180 degrees. This rotation affects the wheels too, but only in play mode.

This is in editor mode:

1164×654 208 KB

and this is in play mode:

1161×654 211 KB

Any suggestions how to fix it so that the wheels don’t turn in? Thanks in advance for any reply.

2271884–153184–CarController.cs (13.6 KB)
2271884–153185–CarUserControl.cs (905 Bytes)

2

How are you moving the cars? Can you post the script?

3

I’m using a modified version of the CarController and CarUserControl scripts from the Standars Assets. I added them to the OP.

4

Try rotating the WheelColliders 180° on their y axis.

5

I tried that but they remain the same. It’s like the wheels locked to the same rotation as the car object.

Edit: interchanging the wheels seems to solve it. Now the wheels turn in in editor mode and look normal in play mode, but I’m sure that there is a more professional way to solve it, so I’m open to other ideas.

6

I normally just change the scripts if I’m using transform.translate or something like that so they are vector3.back for going forward etc

7

I see what you mean, that could work but I’m not quite sure where to change the script. I think the CalculateRevs method should be rewritten, I checked the documentation about the vector3.back, but I’m just way too new to coding and I can’t find out how to rewrite it to work properly (trust me I tried, I had pretty weird results, when I didn’t get errors). If you could help me a little further I would really appreciate it.

8

Sorry, that script sounds waaaaaay more complicated (calculate revs before calculating movement force?) than I’m up to. I’m just starting to code this year myself so atm I just play around with the simple bits. As a rule I don’t use other people’s scripts unless I understand everything they are doing as that way I know I will be able to tweak it as needed. Normally I just play around with building my own. It’s slow but I know what each bit is doing.

9

Maybe find where the keys are being called & swap them around e.g if they are using the arrow keys find where it is using keycode.downarrow & change it to up & vice versa

10

Oh, so you are a beginner too :). Well, it is a good approach to learn and most of the time I try to write my own scripts, it just seemed easier to grab the scripts from the Standars Assets. Probably I will never be able to write a physics script like that, but I wouldn’t have any problem with it if the cars had the right forward direction in the first place… Anyway, thank you for your time and help, I really appreciate it.