Problem with linearVelocity (making fling the player)

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#1

I’m trying to make a fly script for my game but during the tests, I encountered a problem that I can’t solve : linear velocity teleport the character to absurd position (like (100000000000,1000000000000,10000000000)

I tried debugging and looking on the web but found nothing to solve my strange problem.

here’s the script (not finished at all) :

local PlayerGui = game.Players:GetPlayerFromCharacter(script.Parent).PlayerGui
local Character = script.Parent

local UIS = game.UserInputService

local HRP = Character:WaitForChild("HumanoidRootPart")

local Button = PlayerGui.ScreenGui.Frame
local FlyEnabled = false

local Attachment = Instance.new("Attachment", HRP)
local LinearVelocity = Instance.new("LinearVelocity", HRP)

LinearVelocity.Attachment0 = Attachment
LinearVelocity.MaxForce = math.huge
LinearVelocity.Enabled = false
LinearVelocity.RelativeTo = Enum.ActuatorRelativeTo.World

game["Run Service"].Heartbeat:Connect(function()
	print(Character.HumanoidRootPart.Position)
	print(HRP.AssemblyLinearVelocity)
end)



UIS.InputBegan:Connect(function(Key)
	print(LinearVelocity.VectorVelocity)
	if FlyEnabled == true then
		if Key == Enum.KeyCode.W then
			LinearVelocity.VectorVelocity = Vector3.new(0,0,1)
		end
	end
end)


local function Fly()
	
end







Button.MouseButton1Click:Connect(function()
	FlyEnabled = not FlyEnabled
	if FlyEnabled then
		LinearVelocity.Enabled = true
		Button.BackgroundColor3 = Color3.fromRGB(54, 204, 12)
	elseif not FlyEnabled then
		LinearVelocity.Enabled = false
		Button.BackgroundColor3 = Color3.fromRGB(204, 0, 0)
	end
end)

Do someone identify the problem ? Is it possible to solve it ?

Thank you !