How were the trains in Jailbreak done? [SOLVED]

Alexander_Ashford · April 27, 2019, 6:10pm

Funnily enough a similar question has been asked before on the Dev Forum:

And was answered by badcc himself:

Yep! @tyridge77 tipped me off on the idea of CFraming the Character along with train movement. I didn’t originally want to do this because it’s kind of a fake momentum feel (if train goes around corner and you jump in the air, you’ll turn with it). But it makes everything feel super smooth, so I decided to finally add. Previously I was manually calculating Velocity/RotVelocity for every anchored train part, and the character would move along with it. This broke down a bit on Xbox, something is different there.

Now at start of train update frame I raycast down and check if player is standing on train, perform train update step, and check CFrame of that same part I raycasted earlier in frame. In my code above, that’s LastTrainCF and TrainCF. This way no matter what far the update step is, character moves with it. It’s beautiful. We also have some invisible platforms in between the train cars so that the ray hits it when you jump across.

In Tyridge’s fancy train demo he also broadcasts clients relative CFrame to train base part to every other client. I’m not doing this atm. You should show them some videos of yours @tyridge77