src/StarterGui/SettingsGUI.client.lua

-- src/StarterGui/SettingsGUI.client.lua
local Players = game:GetService("Players")
local UserInputService = game:GetService("UserInputService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local SoundService = game:GetService("SoundService")

local player = Players.LocalPlayer

local screenGui = Instance.new("ScreenGui")
screenGui.Name = "SettingsGUI"
screenGui.ResetOnSpawn = false
screenGui.Parent = player:WaitForChild("PlayerGui")

local mainFrame = Instance.new("Frame")
mainFrame.Name = "SettingsFrame"
mainFrame.Size = UDim2.new(0, 350, 0, 300)
mainFrame.Position = UDim2.new(0.5, -175, 0.5, -150)
mainFrame.BackgroundColor3 = Color3.fromRGB(25, 28, 35)
mainFrame.BackgroundTransparency = 0.05
mainFrame.BorderSizePixel = 0
mainFrame.Visible = false
mainFrame.Parent = screenGui

local corner = Instance.new("UICorner")
corner.CornerRadius = UDim.new(0, 12)
corner.Parent = mainFrame

local stroke = Instance.new("UIStroke")
stroke.Color = Color3.fromRGB(120, 120, 140)
stroke.Thickness = 2
stroke.Parent = mainFrame

local titleBar = Instance.new("Frame")
titleBar.Size = UDim2.new(1, 0, 0, 38)
titleBar.BackgroundColor3 = Color3.fromRGB(60, 60, 80)
titleBar.BorderSizePixel = 0
titleBar.Parent = mainFrame

local titleCorner = Instance.new("UICorner")
titleCorner.CornerRadius = UDim.new(0, 12)
titleCorner.Parent = titleBar

local titleLabel = Instance.new("TextLabel")
titleLabel.Size = UDim2.new(1, -50, 1, 0)
titleLabel.Position = UDim2.new(0, 15, 0, 0)
titleLabel.BackgroundTransparency = 1
titleLabel.Text = "Settings"
titleLabel.TextColor3 = Color3.new(1, 1, 1)
titleLabel.TextScaled = true
titleLabel.Font = Enum.Font.GothamBold
titleLabel.TextXAlignment = Enum.TextXAlignment.Left
titleLabel.Parent = titleBar

local closeBtn = Instance.new("TextButton")
closeBtn.Size = UDim2.new(0, 28, 0, 28)
closeBtn.Position = UDim2.new(1, -33, 0, 5)
closeBtn.BackgroundColor3 = Color3.fromRGB(180, 50, 50)
closeBtn.Text = "X"
closeBtn.TextColor3 = Color3.new(1, 1, 1)
closeBtn.TextScaled = true
closeBtn.Font = Enum.Font.GothamBold
closeBtn.Parent = titleBar

local closeCorner = Instance.new("UICorner")
closeCorner.CornerRadius = UDim.new(0, 6)
closeCorner.Parent = closeBtn

closeBtn.MouseButton1Click:Connect(function()
	mainFrame.Visible = false
end)

-- Slider builder
local function createSlider(parent, label, yPos, initial, callback)
	local sliderFrame = Instance.new("Frame")
	sliderFrame.Size = UDim2.new(1, -30, 0, 40)
	sliderFrame.Position = UDim2.new(0, 15, 0, yPos)
	sliderFrame.BackgroundTransparency = 1
	sliderFrame.Parent = parent

	local nameLabel = Instance.new("TextLabel")
	nameLabel.Size = UDim2.new(0.4, 0, 0, 20)
	nameLabel.BackgroundTransparency = 1
	nameLabel.Text = label
	nameLabel.TextColor3 = Color3.new(1, 1, 1)
	nameLabel.TextScaled = true
	nameLabel.Font = Enum.Font.GothamMedium
	nameLabel.TextXAlignment = Enum.TextXAlignment.Left
	nameLabel.Parent = sliderFrame

	local trackBg = Instance.new("Frame")
	trackBg.Size = UDim2.new(0.55, 0, 0, 8)
	trackBg.Position = UDim2.new(0.4, 0, 0.5, -4)
	trackBg.BackgroundColor3 = Color3.fromRGB(40, 40, 50)
	trackBg.BorderSizePixel = 0
	trackBg.Parent = sliderFrame

	local trackCorner = Instance.new("UICorner")
	trackCorner.CornerRadius = UDim.new(0, 4)
	trackCorner.Parent = trackBg

	local fill = Instance.new("Frame")
	fill.Size = UDim2.new(initial, 0, 1, 0)
	fill.BackgroundColor3 = Color3.fromRGB(80, 140, 220)
	fill.BorderSizePixel = 0
	fill.Parent = trackBg

	local fillCorner = Instance.new("UICorner")
	fillCorner.CornerRadius = UDim.new(0, 4)
	fillCorner.Parent = fill

	local valueLabel = Instance.new("TextLabel")
	valueLabel.Size = UDim2.new(0, 30, 0, 20)
	valueLabel.Position = UDim2.new(0.96, 0, 0.5, -10)
	valueLabel.BackgroundTransparency = 1
	valueLabel.Text = tostring(math.floor(initial * 100)) .. "%"
	valueLabel.TextColor3 = Color3.fromRGB(180, 180, 200)
	valueLabel.TextScaled = true
	valueLabel.Font = Enum.Font.Gotham
	valueLabel.Parent = sliderFrame

	local dragging = false
	trackBg.InputBegan:Connect(function(input)
		if input.UserInputType == Enum.UserInputType.MouseButton1 then
			dragging = true
		end
	end)
	trackBg.InputEnded:Connect(function(input)
		if input.UserInputType == Enum.UserInputType.MouseButton1 then
			dragging = false
		end
	end)

	UserInputService.InputChanged:Connect(function(input)
		if dragging and input.UserInputType == Enum.UserInputType.MouseMovement then
			local absPos = trackBg.AbsolutePosition.X
			local absSize = trackBg.AbsoluteSize.X
			local relative = math.clamp((input.Position.X - absPos) / absSize, 0, 1)
			fill.Size = UDim2.new(relative, 0, 1, 0)
			valueLabel.Text = tostring(math.floor(relative * 100)) .. "%"
			callback(relative)
		end
	end)
end

-- Volume sliders
createSlider(mainFrame, "Master Volume", 50, 0.8, function(v)
	SoundService.AmbientReverb = Enum.ReverbType.NoReverb
	-- Adjust all sound groups
	for _, group in pairs(SoundService:GetChildren()) do
		if group:IsA("SoundGroup") then
			group.Volume = v
		end
	end
end)

createSlider(mainFrame, "SFX Volume", 100, 1.0, function(v)
	local sfx = SoundService:FindFirstChild("SFX")
	if sfx then sfx.Volume = v end
end)

createSlider(mainFrame, "Ambient Volume", 150, 0.3, function(v)
	local ambient = SoundService:FindFirstChild("Ambient")
	if ambient then ambient.Volume = v end
end)

createSlider(mainFrame, "Graphics Quality", 200, 0.8, function(v)
	local qualityLevel = math.clamp(math.floor(v * 10) + 1, 1, 10)
	settings().Rendering.QualityLevel = Enum.QualityLevel:GetEnumItems()[qualityLevel] or Enum.QualityLevel.Automatic
end)

-- Toggle with ESC/O key
UserInputService.InputBegan:Connect(function(input, gameProcessed)
	if gameProcessed then return end
	if input.KeyCode == Enum.KeyCode.O then
		mainFrame.Visible = not mainFrame.Visible
	end
end)