ForceField Unable to Prevent Damage

[seemerollingnowudont (SeChae)]

1. What do you want to achieve? Honestly the main thing I want to do is just make my character take no damage when they reach a certain hp number (basically shows they are “knocked”). My way of working around this (because I saw it was impossible to do that (have a humanoid take no damage) from a similar post on dev forums) was using a forcefield but the forcefield doesn’t work.

2. What is the issue? As I previously stated, the forcefield doesn’t work or do the job of preventing damage. I included a video for you which goes over the code at the end which you probably don’t need to see because I pasted it in here.
   Dropbox - Health.rbxl - Roblox Studio.mp4 - Simplify your life

3. What solutions have you tried so far? Quite frankly I am so confused because isn’t a forcefield supposed to prevent damage to the humanoid according to the documentation on it? I tried many things such as adding in an if statement and a damage variable but to no avail. I previously even had a zombie spawner model but figured it took damage by taking away from my health explaining why the forcefield wasn’t working but I guess I was wrong.

-- Quick kill script I made in workspace --
local part = script.Parent
local db = true


part.Touched:Connect(function(otherpart, damage)
	local humanoid = otherpart.Parent:FindFirstChild("Humanoid")
	if humanoid then
		if not otherpart.Parent:FindFirstChild("force") and db == true then
			db = false
			humanoid:TakeDamage(5)
			task.wait(0.5)
			db = true
		end
	end
end)

-- Server Script in ScriptService --
local rs = game:GetService("ReplicatedStorage")
local peel = rs.peel

local function fuse(player, charac, humanoid)
	local animateScript = charac:WaitForChild("Animate")
	local animation1 = animateScript.idle:WaitForChild("Animation1")
	animation1.AnimationId = "rbxassetid://14237514199"
	local animation2 = animateScript.idle:WaitForChild("Animation2")
	animation2.AnimationId = "rbxassetid://14237514199"
	humanoid.WalkSpeed = 0.5
	humanoid.JumpPower = 0
	humanoid.AutoRotate = false
end

peel.OnServerEvent:Connect(fuse)

-- Local Script in ScreenGUI -- 
local rs = game:GetService("ReplicatedStorage")
local peel = rs.peel

local player = game.Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local hum = character:WaitForChild("Humanoid")

local function giveForcefield()
		local forceField = Instance.new("ForceField")
		forceField.Visible = true
		forceField.Parent = character
end

hum.HealthChanged:Connect(function(health)
	if health <= 80 then
		local forceField = Instance.new("ForceField")
		forceField.Name = "force"
		forceField.Visible = true
		forceField.Parent = character
		peel:FireServer(character, hum)
	end
	local screenui = script.Parent
	local hpbar  = screenui.Frame.hpbar
	local hp = health / hum.MaxHealth
	hpbar:TweenSize(UDim2.new(hp,0,1,0), Enum.EasingDirection.Out, Enum.EasingStyle.Quad, 0.5)
	task.wait(0.1)
end)

Thank you for the help in advance!

[Katrist]

It’s because you’re adding the forcefield on the client, so other server scripts won’t be able to see it.

Change your local script to this:

--//Services
local Players = game:GetService("Players")
local rs = game:GetService("ReplicatedStorage")

--//Variables
local player = Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local hum = character:WaitForChild("Humanoid")
local peel = rs.peel

--//Functions
hum.HealthChanged:Connect(function(health)
	if health <= 80 then
		peel:FireServer(character, hum)
	end
	
	local screenui = script.Parent
	local hpbar  = screenui.Frame.hpbar
	local hp = health / hum.MaxHealth
	hpbar:TweenSize(UDim2.new(hp,0,1,0), Enum.EasingDirection.Out, Enum.EasingStyle.Quad, 0.5)
	task.wait(0.1)
end)

And the server script to this:

--//Services
local rs = game:GetService("ReplicatedStorage")

--//Variables
local peel = rs.peel

--//Functions
local function fuse(player, charac, humanoid)
	local forceField = Instance.new("ForceField")
	forceField.Name = "force"
	forceField.Visible = true
	forceField.Parent = character
	
	task.delay(5, forceField.Destroy, forceField)
	
	local animateScript = charac:WaitForChild("Animate")
	
	local animation1 = animateScript.idle:WaitForChild("Animation1")
	animation1.AnimationId = "rbxassetid://14237514199"
	
	local animation2 = animateScript.idle:WaitForChild("Animation2")
	animation2.AnimationId = "rbxassetid://14237514199"
	
	humanoid.WalkSpeed = 0.5
	humanoid.JumpPower = 0
	humanoid.AutoRotate = false
end

peel.OnServerEvent:Connect(fuse)

(5 is the amount of time the forcefield will last for)

[seemerollingnowudont (SeChae)]

Oh my days, I am so dumb… Thank you so much it worked!

[Katrist]

No problem, it was only a small issue. Have a good day!