Project Zomboid

Project Zomboid

Better Car Physics
 This topic has been pinned, so it's probably important
Neidmare  [developer] 15 Jan, 2023 @ 3:49am
Bug reports
If you find a bug, please let me know here.
Last edited by Neidmare; 18 Jan, 2023 @ 2:29am
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Showing 1-15 of 130 comments
Boris-XP 15 Jan, 2023 @ 10:54am 
perk Sunday Driver passed out.
Neidmare  [developer] 15 Jan, 2023 @ 11:02am 
Originally posted by Butirat:
perk Sunday Driver passed out.
I dont understand, can you explain?

Sunday driver reduces the acceleration by ~30%. Its subtle.
Last edited by Neidmare; 15 Jan, 2023 @ 11:04am
Fearne 15 Jan, 2023 @ 8:43pm 
So I manually installed it client-side and it seems to work on the server. Only problem is it wont shift up, and I made SURE that Manual Gearbox is not checked.

Update (11:56 PM): I tested it, and it seems the only one affected is the Mercedes from PI5. All his other cars work fine.

Update (2:48 AM): So, it's starting to do it with the other cars from KI5. It's alternating between not shifting out of third and losing power. The other thing is the same as it did with the Mercedes, it'll hit 2nd then bounce between 1st and 2nd gear.
Last edited by Fearne; 15 Jan, 2023 @ 11:50pm
Neidmare  [developer] 16 Jan, 2023 @ 12:24am 
Originally posted by Fearne:
So I manually installed it client-side and it seems to work on the server. Only problem is it wont shift up, and I made SURE that Manual Gearbox is not checked.

Update (11:56 PM): I tested it, and it seems the only one affected is the Mercedes from PI5. All his other cars work fine.

Update (2:48 AM): So, it's starting to do it with the other cars from KI5. It's alternating between not shifting out of third and losing power. The other thing is the same as it did with the Mercedes, it'll hit 2nd then bounce between 1st and 2nd gear.

Thanks for the report. The Mercedes models from KI5 have higher weight and a bit less HP than vanilla cars, which means they top out at a bit less than 120MPH. So not getting out of 3rd in auto-transmission is expected. Especially when the engine quality is < 100, then the engine loses some HP. In perfect conditions the cars barely make it to 4th gear from my testing.
Fearne 16 Jan, 2023 @ 12:31am 
As a follow up, for some reason, the Mercedes started to work. And the S10 from the 80's trucks was working excellent. But now the Mercedes AND the S10 are crawling. The S10 wont get out of 1st and it just hits around 20 MPH.

Update (3:43 AM): Also, lemme be a bit more clear as to what happens. So, the Mercedes bounces between 1st and 2nd gear. That's what that was doing. Then, it worked great! Now it's back to bouncing between 1st and 2nd gear.

The S10 was the one that worked PERFECT, but started losing power at 3rd gear. NOW, it wont even leave 1st, and it chugs along at like... 20 MPH.
Last edited by Fearne; 16 Jan, 2023 @ 12:43am
Neidmare  [developer] 16 Jan, 2023 @ 12:43am 
Originally posted by Fearne:
As a follow up, for some reason, the Mercedes started to work. And the S10 from the 80's trucks was working excellent. But now the Mercedes AND the S10 are crawling. The S10 wont get out of 1st and it just hits around 20 MPH.

That all seems super weird. Just tested the S10, works fine.

Just out of curiosity, is the car actually in first? You can still shift manually when automatic gears are on (to override the current gear). It could be that you accidentally pressed up or down arrow on the keyboard. Also, if you remapped the driving keybinds to the arrow keys, that could interfere as well.
Fearne 16 Jan, 2023 @ 12:45am 
Nope, I cant use Manual with the server. The buttons wont work. My fingers dont go near the Arrow keys at all, and the Shifting IS paired to those keys.

Update (3:51 AM): I rebooted the server and tested the S10. It works normal and even has power in the 4th gear. I then tried the Merc again, and it still 1st/2nd stutters. THEN I did the S10 and now it has power loss AGAIN.
Last edited by Fearne; 16 Jan, 2023 @ 12:52am
Neidmare  [developer] 16 Jan, 2023 @ 12:54am 
Originally posted by Fearne:
So I manually installed it client-side and it seems to work on the server...

Ah when you say you manually installed it, what do you mean by that? The media folder / lua code should not be copied manually, that could lead to weird things happening.
Fearne 16 Jan, 2023 @ 12:56am 
By Manually Installing it, I mean I followed the instructions of moving the files over to the folders. Every step you listed, I did it. The files are in there, moved, not copied.
Neidmare  [developer] 16 Jan, 2023 @ 1:00am 
Originally posted by Fearne:
By Manually Installing it, I mean I followed the instructions of moving the files over to the folders. Every step you listed, I did it. The files are in there, moved, not copied.

Ok very good, just making sure! Someone in the comments found out that you also have to install the mod on the server to make the manual shifting work. Could you give that a try?
Fearne 16 Jan, 2023 @ 1:03am 
I'll try to install it on the server, but I did one more test. I left the server (keeping the server running), but I went back in and only did the S10. It works perfect, has power up through 4th gear and just goes. I think there's something wrong with the Merc's that's having a lasting effect.
Neidmare  [developer] 16 Jan, 2023 @ 1:04am 
Originally posted by Fearne:
I'll try to install it on the server, but I did one more test. I left the server (keeping the server running), but I went back in and only did the S10. It works perfect, has power up through 4th gear and just goes. I think there's something wrong with the Merc's that's having a lasting effect.

Which Mercedes mod are you using? I saw that there is multiple from KI5.
Fearne 16 Jan, 2023 @ 1:08am 
The W460 SUV, the newest one with the three variants.
Fearne 16 Jan, 2023 @ 1:12am 
Update (4:11 AM): SO, I put it on the server, and I got it in Semi-Auto so I can shift. It DOES go to 3rd, but when bringing it back down, it will stutter again.

Update (4:15 AM): There's something wrong with the Merc. The S10 was going great, I did the Merc testing (above) and when I got back INTO the S10, it's got power loss and wont shift correctly.
Last edited by Fearne; 16 Jan, 2023 @ 1:16am
Neidmare  [developer] 16 Jan, 2023 @ 1:19am 
I tried to reproduce it, but locally it works fine :(

My last guess is that you maybe got an old version. I know of the behavior you describe, but I fixed it a while ago (and then it happened with every car). I dont know how this could have happened, but just do make sure its not that, can you try re-installing the mod? (as in unsubscribe, subscribe again, copy zombie folder again)
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