Hoverboard Drift (L-R)

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#1

Hello!

I was making a hoverboard and basically I’m not really a physics person…

Can someone help me figure out why this is drifting (when I turn left and right) and how to fix it? (this also happens sometimes when it’s just going straight, like in the video).

Thanks in advance!

local Humanoid = Character:WaitForChild("Humanoid")

local RunService = game:GetService("RunService")
local Connection = nil

local HoverboardSeat = nil
local Attachment = nil
local VectorForce = nil
local Orientation = nil
local AlignOrientation = nil

local RaycastParamaters = nil
local RayOffset = Vector3.new(0, -8, 0)
local RayVelocity = 0.2

local ThrustMin = 600
local Thrust = 2000

local Drag = 0.008
local Counter = 0.004

local AniamtionTrack = Humanoid:WaitForChild("Animator"):LoadAnimation(workspace.Hoverboard:WaitForChild("Hovering"))
AniamtionTrack.Priority = Enum.AnimationPriority.Idle

local function Loop(DeltaTime)
	local RayTarget = HoverboardSeat.Position + RayOffset + HoverboardSeat.AssemblyLinearVelocity * RayVelocity
	local RaycastResult = workspace:Raycast(HoverboardSeat.Position, RayTarget - HoverboardSeat.Position, RaycastParamaters)
	
	if not RaycastResult then
		VectorForce.Force = Vector3.new(0, ThrustMin, 0)
		
	else
		local Magnitude = (RaycastResult.Position - RayTarget).Magnitude
		
		VectorForce.Force = Vector3.new(0, ThrustMin + Magnitude * Thrust, 0)
	end
	
	local Velocity = HoverboardSeat.CFrame:VectorToObjectSpace(HoverboardSeat.AssemblyLinearVelocity)
	
	if Velocity.Magnitude > 0 then
		VectorForce.Force -= Velocity.Unit * (Drag * Velocity.Magnitude ^ 2)
		
	else
		VectorForce.Force = Vector3.zero
	end
	
	Orientation *= CFrame.fromOrientation(0, -HoverboardSeat.SteerFloat * HoverboardSeat.TurnSpeed * DeltaTime, 0)
	
	local Tilt = CFrame.fromOrientation(-HoverboardSeat.ThrottleFloat * HoverboardSeat.Torque, 0, -HoverboardSeat.SteerFloat * HoverboardSeat.Torque)
	local CounterX = math.clamp(-HoverboardSeat.AssemblyLinearVelocity.Z * Counter, -HoverboardSeat.Torque, HoverboardSeat.Torque)
	local CounterZ = math.clamp(-HoverboardSeat.AssemblyLinearVelocity.X * Counter, -HoverboardSeat.Torque, HoverboardSeat.Torque)
	local CounterOrientation = CFrame.fromOrientation(CounterX, 0, CounterZ)
	
	AlignOrientation.CFrame = CounterOrientation * Orientation * Tilt
end

local function Seated(Active, Seat)
	if not Active then
		if Connection then
			Connection:Disconnect()
			Connection = nil
			
			Attachment:Destroy()
			VectorForce:Destroy()
			AlignOrientation:Destroy()
			AniamtionTrack:Stop()
		end
	
	elseif Seat.Name == "Hoverboard" then
		HoverboardSeat = Seat
		
		VectorForce = Instance.new("VectorForce")
		Attachment = Instance.new("Attachment", Seat)
		
		VectorForce.Force = Vector3.zero
		VectorForce.ApplyAtCenterOfMass = true
		VectorForce.Attachment0 = Attachment
		VectorForce.Parent = Seat
		
		Orientation = CFrame.fromMatrix(Vector3.zero, Seat.CFrame.LookVector:Cross(Vector3.yAxis), Vector3.yAxis)
		
		AlignOrientation = Instance.new("AlignOrientation")
		AlignOrientation.Mode = Enum.OrientationAlignmentMode.OneAttachment
		AlignOrientation.CFrame = Orientation
		AlignOrientation.Attachment0 = Attachment
		AlignOrientation.Parent = Seat
		
		RaycastParamaters = RaycastParams.new()
		RaycastParamaters.FilterType = Enum.RaycastFilterType.Exclude
		RaycastParamaters.FilterDescendantsInstances = {Character, Seat:FindFirstAncestorOfClass("Model")}
		
		AniamtionTrack:Play()
		
		Connection = RunService.PostSimulation:Connect(Loop)
	end
end

Humanoid.Seated:Connect(Seated)
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