local player = game.Players.LocalPlayer
local Terrain = workspace.Terrain

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

local frame = Instance.new("Frame")
frame.Size = UDim2.new(0, 220, 0, 480)
frame.Position = UDim2.new(0, 30, 0.3, 0)
frame.Active = true
frame.Draggable = true
frame.BorderSizePixel = 0
frame.Parent = gui

-- Rainbow background for main menu (loops smoothly and stays when dragged)
task.spawn(function()
	while frame and frame.Parent do
		for h = 0, 1, 0.01 do
			frame.BackgroundColor3 = Color3.fromHSV(h, 1, 1)
			wait(0.03)
		end
	end
end)

local buttons = {}

local function setButtonsEnabled(enabled)
	for _, btn in ipairs(buttons) do
		btn.Active = enabled
		btn.AutoButtonColor = enabled
		btn.TextColor3 = enabled and Color3.new(1, 1, 1) or Color3.fromRGB(150, 150, 150)
	end
end

local function makeButton(text, posY, action)
	local btn = Instance.new("TextButton")
	btn.Size = UDim2.new(1, -20, 0, 30)
	btn.Position = UDim2.new(0, 10, 0, posY)
	btn.Text = text
	btn.Font = Enum.Font.GothamBold
	btn.TextSize = 16
	btn.TextColor3 = Color3.new(1, 1, 1)
	btn.BackgroundColor3 = Color3.fromRGB(20, 20, 20)
	btn.BorderSizePixel = 0
	btn.Parent = frame
	btn.MouseButton1Click:Connect(action)
	table.insert(buttons, btn)
	return btn
end

-- Variables for water spammer state
local waterSpammerRunning = false
local waterSpammerTask

-- Add Water Button
makeButton("Add Water", 10, function()
	local char = player.Character
	local root = char and char:FindFirstChild("HumanoidRootPart")
	if root then
		local region = Region3.new(
			root.Position - Vector3.new(10, 4, 10),
			root.Position + Vector3.new(10, 0, 10)
		):ExpandToGrid(4)
		Terrain:FillRegion(region, 4, Enum.Material.Water)
	end
end)

-- Water Spammer Button
makeButton("Water Spammer", 50, function()
	if waterSpammerRunning then return end
	waterSpammerRunning = true
	waterSpammerTask = task.spawn(function()
		while waterSpammerRunning do
			local char = player.Character
			local root = char and char:FindFirstChild("HumanoidRootPart")
			if not root then break end

			local center = root.Position

			for x = -20, 20, 4 do
				for z = -20, 20, 4 do
					local pos = Vector3.new(center.X + x, center.Y - 4, center.Z + z)
					local region = Region3.new(pos, pos + Vector3.new(4, 4, 4)):ExpandToGrid(4)
					Terrain:FillRegion(region, 4, Enum.Material.Water)
				end
			end

			task.wait(0.2)
		end
	end)
end)

-- Stretchy Mode Button
makeButton("Stretchy Mode", 90, function()
	local char = player.Character
	if not char then return end
	for _, part in pairs(char:GetDescendants()) do
		if part:IsA("BasePart") then
			part.Size = part.Size * Vector3.new(2, 6, 2)
		end
	end
end)

-- Speedy Button
makeButton("Speedy", 130, function()
	local hum = player.Character and player.Character:FindFirstChildOfClass("Humanoid")
	if hum then
		hum.WalkSpeed = math.min(hum.WalkSpeed * 2, 500)
	end
end)

-- Reset Button
makeButton("Reset", 170, function()
	waterSpammerRunning = false
	if waterSpammerTask then
		task.cancel(waterSpammerTask)
		waterSpammerTask = nil
	end
	Terrain:Clear()
	local hum = player.Character and player.Character:FindFirstChildOfClass("Humanoid")
	if hum then
		hum.Health = 0
	end
	setButtonsEnabled(false)
end)

-- Fling Yourself Button
makeButton("Fling Yourself", 210, function()
	local root = player.Character and player.Character:FindFirstChild("HumanoidRootPart")
	if root then
		local bv = Instance.new("BodyVelocity")
		bv.Velocity = Vector3.new(0, 9999999999, 0)
		bv.MaxForce = Vector3.new(1e9, 1e9, 1e9)
		bv.Parent = root
		game:GetService("Debris"):AddItem(bv, 1)
	end
end)

-- DO NOT CLICK Button
makeButton("DO NOT CLICK", 250, function()
	local root = player.Character and player.Character:FindFirstChild("HumanoidRootPart")
	if root then
		local bv = Instance.new("BodyVelocity")
		bv.Velocity = Vector3.new(0, 9999999999, 0)
		bv.MaxForce = Vector3.new(1e9, 1e9, 1e9)
		bv.Parent = root
		game:GetService("Debris"):AddItem(bv, 1)
		task.wait(5)
		game:Shutdown()
	end
end)

-- Close Button (X)
local closeBtn = Instance.new("TextButton")
closeBtn.Size = UDim2.new(0, 25, 0, 25)
closeBtn.Position = UDim2.new(1, -30, 0, 5)
closeBtn.Text = "X"
closeBtn.Font = Enum.Font.GothamBold
closeBtn.TextSize = 16
closeBtn.BackgroundColor3 = Color3.fromRGB(40, 40, 40)
closeBtn.TextColor3 = Color3.new(1, 1, 1)
closeBtn.BorderSizePixel = 0
closeBtn.Parent = frame
closeBtn.MouseButton1Click:Connect(function()
	frame.Visible = false
	opGuiFrame.Visible = false
end)

-- OP GUI frame (initially hidden)
local opGuiFrame = Instance.new("Frame")
opGuiFrame.Size = UDim2.new(0, 160, 0, 90)
opGuiFrame.Position = UDim2.new(0, 260, 0.3, 0)
opGuiFrame.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
opGuiFrame.BorderSizePixel = 0
opGuiFrame.Visible = false
opGuiFrame.Parent = gui

-- Rainbow background for OP GUI
task.spawn(function()
	while opGuiFrame and opGuiFrame.Parent do
		for h = 0, 1, 0.02 do
			opGuiFrame.BackgroundColor3 = Color3.fromHSV(h, 1, 1)
			task.wait(0.02)
		end
	end
end)

local opButtons = {}

local function opMakeButton(text, posY, action)
	local btn = Instance.new("TextButton")
	btn.Size = UDim2.new(1, -20, 0, 30)
	btn.Position = UDim2.new(0, 10, 0, posY)
	btn.Text = text
	btn.Font = Enum.Font.GothamBold
	btn.TextSize = 16
	btn.TextColor3 = Color3.new(1, 1, 1)
	btn.BackgroundColor3 = Color3.fromRGB(25, 25, 25)
	btn.BorderSizePixel = 0
	btn.Parent = opGuiFrame
	btn.MouseButton1Click:Connect(action)
	table.insert(opButtons, btn)
	return btn
end

-- Size Up button
opMakeButton("Size Up", 10, function()
	local char = player.Character
	if not char then return end
	for _, part in pairs(char:GetDescendants()) do
		if part:IsA("BasePart") then
			part.Size = part.Size * 1.2
		end
	end
end)

-- Size Down button
opMakeButton("Size Down", 50, function()
	local char = player.Character
	if not char then return end
	for _, part in pairs(char:GetDescendants()) do
		if part:IsA("BasePart") then
			part.Size = part.Size * 0.8
		end
	end
end)

-- OP GUI toggle button
local opGuiBtn = makeButton("OP GUI🔥🔥 (may be buggy)", 290, function()
	opGuiFrame.Visible = not opGuiFrame.Visible
end)