local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local LocalPlayer = Players.LocalPlayer

local NPC_FOLDER = workspace:WaitForChild("NPCs")
local highlightEnabled = false
local aimlockEnabled = false
local guiVisible = true
local HIGHLIGHT_NAME = "NoWrongSoundHighlight"

local ScreenGui = Instance.new("ScreenGui")
ScreenGui.Name = "NPCToolsGUI"
ScreenGui.Parent = LocalPlayer:WaitForChild("PlayerGui")

local MainFrame = Instance.new("Frame")
MainFrame.Size = UDim2.new(0, 200, 0, 120)
MainFrame.Position = UDim2.new(0, 20, 0, 20)
MainFrame.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
MainFrame.BorderSizePixel = 0
MainFrame.Parent = ScreenGui
MainFrame.Active = true
MainFrame.Draggable = true

local Title = Instance.new("TextLabel")
Title.Size = UDim2.new(1, 0, 0, 20)
Title.Position = UDim2.new(0, 0, 0, 0)
Title.BackgroundTransparency = 1
Title.Text = "NPC Tools"
Title.TextColor3 = Color3.fromRGB(255, 255, 255)
Title.Font = Enum.Font.SourceSansBold
Title.TextSize = 18
Title.Parent = MainFrame

local HighlightButton = Instance.new("TextButton")
HighlightButton.Size = UDim2.new(0, 160, 0, 40)
HighlightButton.Position = UDim2.new(0, 20, 0, 30)
HighlightButton.BackgroundColor3 = Color3.fromRGB(255, 50, 50)
HighlightButton.TextColor3 = Color3.fromRGB(255, 255, 255)
HighlightButton.Text = "Highlight: OFF"
HighlightButton.Parent = MainFrame

local AimButton = Instance.new("TextButton")
AimButton.Size = UDim2.new(0, 160, 0, 40)
AimButton.Position = UDim2.new(0, 20, 0, 75)
AimButton.BackgroundColor3 = Color3.fromRGB(50, 50, 255)
AimButton.TextColor3 = Color3.fromRGB(255, 255, 255)
AimButton.Text = "Aimlock: OFF"
AimButton.Parent = MainFrame

local HideButton = Instance.new("TextButton")
HideButton.Size = UDim2.new(0, 50, 0, 20)
HideButton.Position = UDim2.new(1, -55, 0, 0)
HideButton.BackgroundColor3 = Color3.fromRGB(100, 100, 100)
HideButton.TextColor3 = Color3.fromRGB(255, 255, 255)
HideButton.Text = "Hide"
HideButton.Parent = MainFrame

local function qualifies(model)
	if not model:IsA("Model") then return false end
	for _, d in ipairs(model:GetDescendants()) do
		if d:IsA("Sound") and d.Name == "Wrong" then
			return false
		end
	end
	return true
end

local function addHighlight(model)
	if model:FindFirstChild(HIGHLIGHT_NAME) then return end
	local highlight = Instance.new("Highlight")
	highlight.Name = HIGHLIGHT_NAME
	highlight.Adornee = model
	highlight.FillColor = Color3.fromRGB(255, 0, 0)
	highlight.OutlineColor = Color3.fromRGB(255, 255, 255)
	highlight.FillTransparency = 0.45
	highlight.Parent = model
end

local function removeHighlight(model)
	local h = model:FindFirstChild(HIGHLIGHT_NAME)
	if h then h:Destroy() end
end

local function updateModel(model)
	if highlightEnabled and qualifies(model) then
		addHighlight(model)
	else
		removeHighlight(model)
	end
end

local function watchModel(model)
	if not model:IsA("Model") then return end
	updateModel(model)
	model.DescendantAdded:Connect(function() updateModel(model) end)
	model.DescendantRemoving:Connect(function() updateModel(model) end)
end

for _, obj in ipairs(NPC_FOLDER:GetDescendants()) do
	if obj:IsA("Model") then watchModel(obj) end
end

NPC_FOLDER.DescendantAdded:Connect(function(obj)
	if obj:IsA("Model") then watchModel(obj) end
end)

local function getClosestNPC()
	local char = LocalPlayer.Character
	if not char or not char:FindFirstChild("HumanoidRootPart") then return nil end
	local hrp = char.HumanoidRootPart
	local closest
	local closestDist = math.huge
	for _, npc in ipairs(NPC_FOLDER:GetChildren()) do
		if npc:IsA("Model") and qualifies(npc) and npc:FindFirstChild("HumanoidRootPart") then
			local dist = (hrp.Position - npc.HumanoidRootPart.Position).Magnitude
			if dist < closestDist then
				closest = npc
				closestDist = dist
			end
		end
	end
	return closest
end

RunService.RenderStepped:Connect(function()
	if aimlockEnabled then
		local target = getClosestNPC()
		if target and target:FindFirstChild("HumanoidRootPart") then
			local camera = workspace.CurrentCamera
			local dir = (target.HumanoidRootPart.Position - camera.CFrame.Position).Unit
			camera.CFrame = CFrame.new(camera.CFrame.Position, camera.CFrame.Position + dir)
		end
	end
end)

HighlightButton.MouseButton1Click:Connect(function()
	highlightEnabled = not highlightEnabled
	HighlightButton.Text = "Highlight: " .. (highlightEnabled and "ON" or "OFF")
	for _, npc in ipairs(NPC_FOLDER:GetDescendants()) do
		if npc:IsA("Model") then updateModel(npc) end
	end
end)

AimButton.MouseButton1Click:Connect(function()
	aimlockEnabled = not aimlockEnabled
	AimButton.Text = "Aimlock: " .. (aimlockEnabled and "ON" or "OFF")
end)

HideButton.MouseButton1Click:Connect(function()
	guiVisible = not guiVisible
	MainFrame.Visible = guiVisible
	HideButton.Text = guiVisible and "Hide" or "Show"
end)