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Passenger applying force to vehicles
Closed, ResolvedPublic


With some modded Vehicles, where the passenger is located close to wheels, inertia is applied to the vehicle on passenger enter. The force also seems to be applied while driving, leaving the feeling of a dropped anchor and making the vehicle undrivable. The Bug only occurs when vehicle is turned on/simulation for vehicle is currently working. The issue can also be reproduced without a driver at the vehicle as long as the vehicle is running when you enter it. This issue mainly seems to have effect on very small vehicles.


Operating System
Windows 10 x64
Steps To Reproduce

Enter a vehicle (with a passenger located close to a wheel) as driver, put gear in neutral, turn vehicle on, rev vehicle up and leave it while the revs are still up. Re-enter the running vehicle (at the passenger seat close to a wheel). Inertia is then making the vehicle move. Leaving the vehicle reproduces the behavior in 100% of the cases too.

Additional Information

Event Timeline

Gilni created this task.Nov 10 2022, 7:53 AM
Geez changed the task status from New to Need More Info.Nov 10 2022, 3:03 PM
Geez added a subscriber: Geez.

Hello Gilni.
Is this only a issue with the modded content?

Gilni added a comment.Nov 10 2022, 3:24 PM

The issue occurs with modded vehicles and not only with this one and not only with vehicles made by me.

This vehicle in particular was updated to meet the DayZ 1.19 requirements both in script and config. In the vehicles models no changes where made in comparison to 1.18 where the issue didnt occured.

Gilni added a comment.Nov 10 2022, 5:44 PM

After more testing i found that the impulse is applied when the person entering the vehicle is moving physically through the wheel of the running vehicle. I mean if the animation played to step into the vehicle would cause the playerbody to collide with it.

This also counts for the driver of a vehicle. If the driver collides with the wheel during the get in animation, it would even cause the steering to turn in. Used animation in this case for both driver and codriver get in is those from V3S

Gilni added a comment.Nov 22 2022, 9:49 AM

Entering a vehicle causes the character hitbox to collide with the wheels hitbox

In this video the behaviour can be seen very well. After press F to enter the Vehicle, i do not use any controls at all. I do not press A or D to change steering angle, i do not press W or S to accelerate or brake. Yet force is applied, even the wheels turn in due to the get in animation.

Gilni added a comment.Nov 22 2022, 9:52 AM

Additional information i have is that after changing the position of the coDriver proxie so it faces backwards, is higher compared to the wheels and therefor can not collide with any wheel hitbox, the problem with the codriver can be avoided. The problem with collision when entering a vehicle remains the same.

Geez changed the task status from Need More Info to Acknowledged.Nov 22 2022, 1:20 PM
lava76 added a subscriber: lava76.Jan 18 2023, 1:42 AM
Geez closed this task as Resolved.Jan 23 2023, 10:42 AM
Geez claimed this task.

Resolved in 1.20.