Moving platforms to move player

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#1

I’m trying to make moving platforms that player can jump between, but it’s glitching the player when they jump/land

local LastPlatformCFrame

local Params = RaycastParams.new()
Params.FilterType = Enum.RaycastFilterType.Exclude

function MoveComponent:HeartbeatUpdate()
	local Character = Player.Character
	if not Character then
		return
	end

	local HumanoidRootPart = Character:FindFirstChild("HumanoidRootPart")
	if not HumanoidRootPart then
		return
	end

	Params.FilterDescendantsInstances = { Character }

	local Raycast = workspace:Raycast(HumanoidRootPart.CFrame.Position, Vector3.new(0, -3, 0), Params)
	if not Raycast then
		return
	end

	local Hit = Raycast.Instance
	if Hit and Hit.Name == "Platform" then
		if LastPlatformCFrame == nil then
			LastPlatformCFrame = Hit.CFrame
		end

		local Relative = Hit.CFrame * LastPlatformCFrame:Inverse()

		LastPlatformCFrame = Hit.CFrame

		HumanoidRootPart.CFrame = Relative * HumanoidRootPart.CFrame
	else
		LastPlatformCFrame = nil
	end
end
#2

i think you could fix this by only doing the raycast if the player isnt jumping

#3

I’m not sure what’s going on. Here are some things to consider:

  • Raycasting 3 downwards from the HRP is exactly the length of the hip height + the offset from the HRP. It might be important to have a slight tolerance (e.g. 3.05).
  • It’s probably better to reset the LastPlatformCFrame when the Hit changes (in addition to when there is no Hit). This could be done by comparing the current hit with a “LastHit” variable.
  • Make sure your code is run from the client.
  • Another note is that your code doesn’t stick the player if their center is off the platform. It might be good to add a few more raycasts or use a shape cast in the future.

Edit:

The problem is probably that LastPlatformCFrame isn’t being reset when the Raycast doesn’t hit anything (the if not Raycast then return end). I think this causes the code to use the difference between the last platform and the new platform and apply that to the character.

So to fix this just add a LastPlatformCFrame = nil before returning there.