BodyPosition after a while no longer grips player to moving platform

[DH_SackBoy (SackBoy)]

So I posted not so long ago about how to get a player to stick/grip on a moving platform:

How to make a player stick to a moving part

Thanks for the reply. I did try the first option but I couldn’t get it to work well, and as you mentioned, I still wanted the player to move/jump. The second option was the closest I got to a solution. In that it did move the player with the platform, but once the platform was moving, I was unable to move my player or jump away from my button. I guess BodyPosition sounds ideal. I did have a play but again was unable to get it to work correctly. The examples I found required the platform to be…

I managed to get it working using BodyPosition and BodyGyro on the moving platform.
Everything seemed to be working…I could move the player on top of a directional arrow button, and that button would move the platform by setting the Position property of the BodyPosition object. I set this on a heartbeat whilst the button is being pressed, e.g.:

local targetVelocity = 5 -- Measured in studs per second.
local targetPosition = platformBodyPosition.Position
for _, direction in ipairs(directions) do
	local offset = (targetVelocity * step) * direction
	targetPosition = targetPosition + offset
end
platformBodyPosition.Position = targetPosition

When I first start moving the platform with the player on it, everything seems good (the player moves with the platform). But after a while I noticed the player slowly stops gripping the platform. The more I moved the platform back and forth with the player, the worse it eventually gets and the player starts falling off the button instead of staying on top of the button (which currently sits on top of the moving platform as shown in the screenshot)

Here are my settings:

local movingPlatform = platform.MovingPlatform
local platformBodyPosition = movingPlatform.BodyPosition
local platformBodyGyro = movingPlatform.BodyGyro

platformBodyPosition.Position = movingPlatform.Position
platformBodyPosition.MaxForce = Vector3.new(math.huge, math.huge, math.huge)
platformBodyPosition.D = 100
platformBodyPosition.P = 10000

platformBodyGyro.D = 500 
platformBodyGyro.MaxTorque = Vector3.new(math.huge, math.huge, math.huge)
platformBodyGyro.P = 3000 
platformBodyGyro.CFrame = movingPlatform.CFrame

movingPlatform.Anchored = false

So whats causing my player to eventually start to fall of the platform as opposed to moving with it? Like I said it works perfectly to begin with. But then gradually gets worse.

Thanks, really appreciate any help anybody can provide.

[BuilderBob25620 (BuilderBob)]

This has been mentioned before on occasion. I highly recommend you check out the following topic:

Jailbreak train platform system?

INFO Recently jailbreak pushed an update, which utilities the new roblox platform system with its trains. Most of you may know, its not possible to stay on the same platform when jumping, meanwhile jailbreak has fixed this somehow. PROBLEM I have no clue as to how they have achieved this, could they be moving a platform up and down as you jump? EXTRA INFO -Ive realized that this system will work on vehicles, could be only due to the fact that the player is inside. -The platform has a max …

However, the topic is relatively old and some methods have changed over time. As such, it is still updated fairly frequently with new scripts. That for for the new methods. Here is one such script:

Jailbreak train platform system?

Hey, I took a look at the thread. I looked at what worked best for me. However there were some bugs with the LastPartCFrame not being reset, so I fixed it. Here is the code optimized to work with the new Raycasting method too. Update: it can also check for HumanoidStateTypes --[[ SETUP 1. Make a LocalScript 2. Put it inside of StarterCharacterScripts 3. Make a folder in workspace and call it "MovingObjects" 4. Put all your moving objects in that folder 5. OPTIONAL, the CheckStates variable wil…

[DH_SackBoy (SackBoy)]

Thanks. I removed the BodyPosition & BodyGyro stuff. Moved the platform how I originally had it, updating its CFrame. And then used the LocalScript in the post that you linked, placed in the StarterCharacterScripts and it worked well. Thank you.