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DayZ 1.09 Experimental - Cars take too much damage at low speed impacts
Reviewed, NormalPublic

Description

Cars seem to take way too much damage at low speed impacts in this patch. I hit a road sign with my Olga doing no more than 25 kmph, engine ended up at yellow with both front wheels, battery, radiator and spark plug ruined. I found new parts, drove a few more miles, overcompensated after a turn and nudged another roadsign doing absolutely no more than 15-20 kmph - but the car was ruined. Now, maybe it was practically ruined already after the first crash - that I could have accepted - but again both wheels, battery, radiator and sparkplug were ruined....

Please take a look at the damage/speed coefficents for vehicle impacts, something doesn't seem quite right. Either vehicles take too much damage from impacts at low speed or their health (or whatever it is called for cars) has been reduced somehow.

Details

Severity
Major
Resolution
Open
Reproducibility
Always
Operating System
Windows 10 x64
Category
Balancing
Steps To Reproduce

Assemble car, drive into a road sign doing about 20-25 kmph. See the result...

Additional Information

Only observed with Olga since that was the car I had assembled.

Event Timeline

Beavis created this task.Aug 27 2020, 11:37 PM
Beavis added a comment.EditedNov 4 2020, 7:35 PM

In 1.10 this is still an issue.

Seriously I cannot imagine it to be intentional. Yesterday I bumped into a roadsign with my Sarka after a lag spike, doing no more than 15-20 kmph. Both front wheels, front doors, hood and radiator went straight from pristine to ruined. Since it was a Sarka the engine was still fine though, but you REALLY have to look at the damage multipliers for vehicles. This is beyond silly, in real life this extent of damage would be expected after slamming into a stone wall in 50 kmph or so...

And why do wheels take damage from bumping into a roadsign?

How it could reasonably be balanced: (damage from one crash)

1-10 kmph - NO damage
11-20 slight damage to body depending on point of impact. (~from pristine to worn)
21-30 more body damage, radiator damage (~damaged)
31-40 severe body and radiator damage, some wheel damage (~badly damaged)
41-50 catastrophic body and radiator damage (~ruined, engine itself repairable on the sturdier cars)
51+ car totalled

From what I've seen damage to players is better balanced although I nearly passed out from nudging that roadsign, which is a bit excessive. I have been involved in traffic accidents a couple of times irl, you're not knocked senseless at impacts around 20-30 kmph...

Beavis added a comment.Nov 4 2020, 7:41 PM

Footnote - the overly squishy cars are especially punishing because of how easy it is to crash due to lag and server stutter. Until vehicle simulation stability is better you might want to consider making cars a lot tougher to compensate. Players do not enjoy spending time and blood to get a car going and then seeing it get wasted after five minutes due to a lag spike...

Beavis added a subscriber: Geez.EditedSun, Sep 12, 5:48 PM

This is STILL an issue in 1.14 Experimental (and of course 1.13 Stable).

Please @Geez would it be possible to somehow bump this up in the list of priorities for some kind of temporary fix in 1.14? Vehicles are extremely fragile to bein with - far too fragile to be honest. So, with the fact that even the tiniest bit of lag makes it difficult to avoid collisions, due to the car suddenly gaining speed or shifting sideways or manouvering input becoming exaggerated due to input or server side lag, you REALLY ought to make vehicles way more robust until the underlying vehicle physics issues are fixed.

It can take hours to assemble a working vehicle while a millisecond of lag can ruin it. Hitting a road sign doing about 10-15 should NOT leave you with ruined radiator, tires etc...

The above issues force most community servers to use No-Vehicle-Damage mods that instead turn cars into indestructible tanks, which is no fun either. Just give cars some more hit points and increase the impact speed before the cars actually start taking damage.

(On my own servers I use a tiny but efficient mod to achieve this, it simply reduces the damage taken by vehicles and their passengers by a set percentage and applies a threshold amount of damage needed before any damage is applied. So, small low-speed impacts do not become catastrophic while crashing at high speeds is still fatal.)

honestly I still think there should be some form of maximum damage done, maximum damage for example 40% of the total damage the car can take, whenever you bug the car it would only suffer 40% of the total damage instead of automatically destroying it, ie you would have 3 bugcrashs until the car destroys.

Fix for this in the latest 1.14 experimental build seems to be working. Crashed my Ada into a car wreck doing about 20 kmph today and it was NOT totalled! I didn't want to sacrifice my ride to see where collisions start doing significant damage, but definitely progress here. Thanks guys!

Geez changed the task status from New to Reviewed.Thu, Sep 16, 10:57 AM

Fix for this in the latest 1.14 experimental build seems to be working. Crashed my Ada into a car wreck doing about 20 kmph today and it was NOT totalled! I didn't want to sacrifice my ride to see where collisions start doing significant damage, but definitely progress here. Thanks guys!

We are glad to hear that some of the changes released with the experimental patch has improved the situation, please let us know in case there are any issues still.

Regards,
Geez