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

local player = Players.LocalPlayer
local camera = workspace.CurrentCamera
local mouse = player:GetMouse()

local cameraPart = nil
local watching = false
local placingCamera = false
local attachingCamera = false

--// GUI
local gui = Instance.new("ScreenGui")
gui.Name = "CameraGui"
gui.ResetOnSpawn = false
gui.Parent = player:WaitForChild("PlayerGui")

local frame = Instance.new("Frame")
frame.Size = UDim2.new(0, 240, 0, 200)
frame.Position = UDim2.new(0, 20, 0.5, -100)
frame.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
frame.BorderSizePixel = 0
frame.Parent = gui

local corner = Instance.new("UICorner")
corner.CornerRadius = UDim.new(0, 10)
corner.Parent = frame

--// Create button
local function createButton(text, y, color)

	local button = Instance.new("TextButton")

	button.Size = UDim2.new(1, -20, 0, 40)
	button.Position = UDim2.new(0, 10, 0, y)

	button.Text = text
	button.TextColor3 = Color3.new(1, 1, 1)
	button.TextSize = 16

	button.BackgroundColor3 = color
	button.BorderSizePixel = 0

	button.Parent = frame

	local buttonCorner = Instance.new("UICorner")
	buttonCorner.CornerRadius = UDim.new(0, 8)
	buttonCorner.Parent = button

	return button
end

--// Buttons
local setupButton = createButton(
	"Set Up Camera",
	10,
	Color3.fromRGB(50, 120, 220)
)

local unanchorButton = createButton(
	"Unanchor Camera",
	55,
	Color3.fromRGB(180, 100, 40)
)

local attachButton = createButton(
	"Attach Camera",
	100,
	Color3.fromRGB(120, 80, 180)
)

local watchButton = createButton(
	"Watch Camera: OFF",
	145,
	Color3.fromRGB(80, 80, 80)
)

--------------------------------------------------
-- SET UP CAMERA
--------------------------------------------------

setupButton.MouseButton1Click:Connect(function()

	placingCamera = not placingCamera
	attachingCamera = false

	if placingCamera then

		setupButton.Text = "TAP A PART"
		setupButton.BackgroundColor3 = Color3.fromRGB(220, 150, 40)

	else

		setupButton.Text = "Set Up Camera"
		setupButton.BackgroundColor3 = Color3.fromRGB(50, 120, 220)

	end

end)

--------------------------------------------------
-- UNANCHOR CAMERA
--------------------------------------------------

unanchorButton.MouseButton1Click:Connect(function()

	if not cameraPart then

		unanchorButton.Text = "SET UP CAMERA FIRST!"

		task.wait(1.5)

		unanchorButton.Text = "Unanchor Camera"

		return
	end

	-- Remove existing welds
	for _, object in ipairs(cameraPart:GetChildren()) do

		if object:IsA("WeldConstraint") then
			object:Destroy()
		end

	end

	cameraPart.Anchored = false

	unanchorButton.Text = "Camera Unanchored!"
	unanchorButton.BackgroundColor3 = Color3.fromRGB(40, 170, 80)

	task.wait(1)

	unanchorButton.Text = "Unanchor Camera"
	unanchorButton.BackgroundColor3 = Color3.fromRGB(180, 100, 40)

end)

--------------------------------------------------
-- ATTACH CAMERA
--------------------------------------------------

attachButton.MouseButton1Click:Connect(function()

	if not cameraPart then

		attachButton.Text = "SET UP CAMERA FIRST!"

		task.wait(1.5)

		attachButton.Text = "Attach Camera"

		return
	end

	attachingCamera = not attachingCamera
	placingCamera = false

	if attachingCamera then

		attachButton.Text = "TAP ANY PART"
		attachButton.BackgroundColor3 = Color3.fromRGB(220, 150, 40)

	else

		attachButton.Text = "Attach Camera"
		attachButton.BackgroundColor3 = Color3.fromRGB(120, 80, 180)

	end

end)

--------------------------------------------------
-- WORLD CLICK
--------------------------------------------------

mouse.Button1Down:Connect(function()

	--------------------------------------------------
	-- PLACE CAMERA
	--------------------------------------------------

	if placingCamera then

		local target = mouse.Target

		if not target or not target:IsA("BasePart") then
			return
		end

		-- Delete old camera
		if cameraPart then
			cameraPart:Destroy()
		end

		-- Create camera
		cameraPart = Instance.new("Part")

		cameraPart.Name = "PlayerCamera"
		cameraPart.Size = Vector3.new(1, 1, 1)

		cameraPart.Transparency = 1

		cameraPart.Anchored = true

		cameraPart.CanCollide = false
		cameraPart.CanTouch = false
		cameraPart.CanQuery = false

		cameraPart.CFrame = CFrame.new(mouse.Hit.Position)

		cameraPart.Parent = workspace

		-- Point camera toward player
		local character = player.Character

		if character then

			local root = character:FindFirstChild("HumanoidRootPart")

			if root then

				cameraPart.CFrame = CFrame.lookAt(
					mouse.Hit.Position,
					root.Position
				)

			end
		end

		placingCamera = false

		setupButton.Text = "Camera Set!"
		setupButton.BackgroundColor3 = Color3.fromRGB(40, 170, 80)

		task.wait(1)

		setupButton.Text = "Set Up Camera"
		setupButton.BackgroundColor3 = Color3.fromRGB(50, 120, 220)

		return
	end

	--------------------------------------------------
	-- ATTACH CAMERA
	--------------------------------------------------

	if attachingCamera then

		local target = mouse.Target

		if not target or not target:IsA("BasePart") then
			return
		end

		-- Don't attach to itself
		if target == cameraPart then
			return
		end

		-- IMPORTANT:
		-- We NO LONGER check target.Anchored.
		-- Anchored AND unanchored parts are allowed.

		-- Remove previous welds
		for _, object in ipairs(cameraPart:GetChildren()) do

			if object:IsA("WeldConstraint") then
				object:Destroy()
			end

		end

		-- Put camera at the clicked location
		cameraPart.CFrame = CFrame.new(mouse.Hit.Position)

		-- Camera must be unanchored for welding
		cameraPart.Anchored = false

		-- Create weld
		local weld = Instance.new("WeldConstraint")

		weld.Name = "CameraAttachment"

		weld.Part0 = cameraPart
		weld.Part1 = target

		weld.Parent = cameraPart

		attachingCamera = false

		attachButton.Text = "Camera Attached!"
		attachButton.BackgroundColor3 = Color3.fromRGB(40, 170, 80)

		task.wait(1)

		attachButton.Text = "Attach Camera"
		attachButton.BackgroundColor3 = Color3.fromRGB(120, 80, 180)

		return
	end

end)

--------------------------------------------------
-- WATCH CAMERA
--------------------------------------------------

watchButton.MouseButton1Click:Connect(function()

	if not cameraPart then

		watchButton.Text = "SET UP CAMERA FIRST!"

		task.wait(1.5)

		watchButton.Text = "Watch Camera: OFF"

		return
	end

	watching = not watching

	if watching then

		watchButton.Text = "Watch Camera: ON"
		watchButton.BackgroundColor3 = Color3.fromRGB(40, 170, 80)

		camera.CameraType = Enum.CameraType.Scriptable

	else

		watchButton.Text = "Watch Camera: OFF"
		watchButton.BackgroundColor3 = Color3.fromRGB(80, 80, 80)

		camera.CameraType = Enum.CameraType.Custom

		local character = player.Character

		if character then

			local humanoid =
				character:FindFirstChildOfClass("Humanoid")

			if humanoid then
				camera.CameraSubject = humanoid
			end

		end

	end

end)

--------------------------------------------------
-- CAMERA FOLLOW
--------------------------------------------------

RunService.RenderStepped:Connect(function()

	if watching and cameraPart and cameraPart.Parent then

		camera.CFrame = cameraPart.CFrame

	end

end)

--------------------------------------------------
-- RESPAWN
--------------------------------------------------

player.CharacterAdded:Connect(function(character)

	if not watching then

		local humanoid = character:WaitForChild("Humanoid")

		camera.CameraType = Enum.CameraType.Custom
		camera.CameraSubject = humanoid

	end

end)