Help with making a physics based grappling gun

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#1
  1. I am trying to make a grapple hook physics based

2.I have made the grapple hook but I can’t figure out (even by looking in the dev forum) how to make it swing, video of what i want it to look like: Roblox Grappling Hook - YouTube

  1. I have tried messing with the settings and I cant figure out how to make it work

I have tried to make it a rope, changed some settings in the scripts but I can’t figure out how I can make it swing smooth. I want to make it for a parkour game

If someone can help me figure out how to make it work that would really help.

This is what I have right now:

local RunService = game:GetService("RunService")
local Players = game:GetService("Players")
local TweenService = game:GetService("TweenService")

local tool = script.Parent 
local base = tool:WaitForChild("Base")
local spring = base.Spring 
local hook = tool:WaitForChild("Hook")
local hookWeld = hook.HookWeld 
local hookReference = tool:WaitForChild("HookReference")
local messageEvent = script:WaitForChild("MessageEvent")
local activated = script:WaitForChild("Activated")

--ONLY CLIENT 
local player = nil 
local mouse = nil 
local currentTween = nil 

local GrappleGun = {}

local function toggleHumanoidGrappleState(active)
	local humanoid = player.Character and player.Character:FindFirstChild("Humanoid")
	
	if humanoid then 
		
		if active then 

		else 
		end
		
	end
end

local function clientInit()
	player = Players.LocalPlayer 
	mouse = player:GetMouse()
	
	mouse.TargetFilter = player.Character 
	
	tool.Activated:Connect(function()
		if not GrappleGun.IsActivated() and mouse.Target then 
			messageEvent:FireServer(true, mouse.Hit.Position)
			toggleHumanoidGrappleState(true)
		end 
	end)
	
	tool.Deactivated:Connect(function()
		messageEvent:FireServer(false)
		toggleHumanoidGrappleState(false)
	end)
	
	tool.Unequipped:Connect(function()
		messageEvent:FireServer(false)
		toggleHumanoidGrappleState(false)
	end)
	
end

local function serverInit()
	
	messageEvent.OnServerEvent:Connect(function(player, _activated, targetPosition)
		activated.Value = _activated
		
		if GrappleGun.IsActivated() then 
			GrappleGun.Fire(targetPosition)
		else 
			GrappleGun.Reset()
		end
		
	end)
	
end

local function init()
	if RunService:IsClient() then 
		clientInit()
	elseif RunService:IsServer() then 
		serverInit()
	end
end 

function GrappleGun.IsActivated()
	return activated.Value 
end

function GrappleGun.Fire(targetPosition)
	local initalPos = hookReference.Position 
	
	local distance = (targetPosition - initalPos).Magnitude 
	
	hookWeld.Enabled = false 
	hook.Anchored = true 
	
	wait()
	
	hook.Position = targetPosition 
	spring.FreeLength = distance 
	
	local info = TweenInfo.new(distance/100, Enum.EasingStyle.Linear)
	local tween = TweenService:Create(spring, info, {FreeLength = 75})
	
	tween:Play()
	
	currentTween = tween 
end

function GrappleGun.Reset()
	if currentTween then 
		currentTween:Cancel()
	end
	
	hook.CFrame = hookReference.CFrame
	hookWeld.Enabled = true 
	hook.Anchored = false 
	
	spring.FreeLength = 1 
end


init()
return GrappleGun
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