-- Get services
local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Player = Players.LocalPlayer

-- Remote reference
local DamageRemote = ReplicatedStorage:WaitForChild("Remotes"):WaitForChild("Damage")

-- Create GUI
local screenGui = Instance.new("ScreenGui")
screenGui.Name = "DamageGui"
screenGui.ResetOnSpawn = false  -- WON'T disappear on death
screenGui.Parent = Player:WaitForChild("PlayerGui")

local frame = Instance.new("Frame")
frame.Size = UDim2.new(0, 300, 0, 250)
frame.Position = UDim2.new(0.5, -150, 0.5, -125)
frame.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
frame.BorderSizePixel = 0
frame.Parent = screenGui

-- Make frame draggable
frame.Active = true
frame.Draggable = true

-- Title label
local titleLabel = Instance.new("TextLabel")
titleLabel.Text = "Electron Central"
titleLabel.Size = UDim2.new(1, 0, 0, 40)
titleLabel.Position = UDim2.new(0, 0, 0, 0)
titleLabel.BackgroundColor3 = Color3.fromRGB(45, 45, 45)
titleLabel.TextColor3 = Color3.fromRGB(255, 255, 255)
titleLabel.Font = Enum.Font.SourceSansBold
titleLabel.TextSize = 22
titleLabel.Parent = frame

-- Input for class
local classBox = Instance.new("TextBox")
classBox.PlaceholderText = "Enter Class (e.g., Vortex)"
classBox.Size = UDim2.new(1, -20, 0, 35)
classBox.Position = UDim2.new(0, 10, 0, 50)
classBox.BackgroundColor3 = Color3.fromRGB(40, 40, 40)
classBox.TextColor3 = Color3.fromRGB(255, 255, 255)
classBox.TextSize = 18
classBox.ClearTextOnFocus = false
classBox.Parent = frame

-- Input for boss name
local bossBox = Instance.new("TextBox")
bossBox.PlaceholderText = "Enter Boss Name (e.g., Percolalpha)"
bossBox.Size = UDim2.new(1, -20, 0, 35)
bossBox.Position = UDim2.new(0, 10, 0, 95)
bossBox.BackgroundColor3 = Color3.fromRGB(40, 40, 40)
bossBox.TextColor3 = Color3.fromRGB(255, 255, 255)
bossBox.TextSize = 18
bossBox.ClearTextOnFocus = false
bossBox.Parent = frame

-- Start button
local startButton = Instance.new("TextButton")
startButton.Text = "Start"
startButton.Size = UDim2.new(1, -20, 0, 35)
startButton.Position = UDim2.new(0, 10, 0, 140)
startButton.BackgroundColor3 = Color3.fromRGB(60, 180, 75)
startButton.TextColor3 = Color3.fromRGB(255, 255, 255)
startButton.TextSize = 18
startButton.Parent = frame

-- Stop button
local stopButton = Instance.new("TextButton")
stopButton.Text = "Stop"
stopButton.Size = UDim2.new(1, -20, 0, 35)
stopButton.Position = UDim2.new(0, 10, 0, 185)
stopButton.BackgroundColor3 = Color3.fromRGB(220, 50, 50)
stopButton.TextColor3 = Color3.fromRGB(255, 255, 255)
stopButton.TextSize = 18
stopButton.Parent = frame

-- Control variable
local running = false

-- Start button logic
startButton.MouseButton1Click:Connect(function()
	if running then return end
	running = true

	local className = classBox.Text
	local bossName = bossBox.Text

	if className == "" or bossName == "" then
		warn("Please enter both class and boss names.")
		running = false
		return
	end

	-- Get boss from workspace and damage
	local boss
	local humanoid
	local success, err = pcall(function()
		boss = workspace:WaitForChild("Characters"):WaitForChild("Enemies"):WaitForChild(bossName, 5)
		humanoid = boss:WaitForChild("Humanoid", 5)
	end)

	if not success or not boss or not humanoid then
		warn("Could not find boss or humanoid: " .. (err or "unknown error"))
		running = false
		return
	end

	local args = {
		humanoid,
		className,
		{}
	}

	-- Damage loop
	task.spawn(function()
		while running and humanoid and humanoid.Health > 0 do
			DamageRemote:FireServer(unpack(args))
			task.wait(0.01)
		end
	end)
end)

-- Stop button logic
stopButton.MouseButton1Click:Connect(function()
	running = false
end)