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

local player = Players.LocalPlayer
local camera = workspace.CurrentCamera

local gui = nil
local connection = nil
local isEnabled = false

local function getSyncPairs(realObj, cloneObj, pairsTable)
    if realObj:IsA("BasePart") and cloneObj:IsA("BasePart") then
        cloneObj.Anchored = true
        table.insert(pairsTable, {real = realObj, clone = cloneObj})
    end
    
    local realChildren = realObj:GetChildren()
    local cloneChildren = cloneObj:GetChildren()

    local cloneMap = {}
    for _, child in ipairs(cloneChildren) do
        local key = child.Name .. child.ClassName
        if not cloneMap[key] then cloneMap[key] = {} end
        table.insert(cloneMap[key], child)
    end
    for _, child in ipairs(realChildren) do
        local key = child.Name .. child.ClassName
        if cloneMap[key] and #cloneMap[key] > 0 then
            local matchedClone = table.remove(cloneMap[key], 1)
            getSyncPairs(child, matchedClone, pairsTable)
        end
    end
end

local function togglePerfectGreenScreen()
    isEnabled = not isEnabled
    
    if isEnabled then
        local character = player.Character
        if not character or not character:FindFirstChild("HumanoidRootPart") then
            isEnabled = false
            return
        end
        
        gui = Instance.new("ScreenGui")
        gui.Name = "PerfectChromaKey"
        gui.IgnoreGuiInset = true
        gui.ResetOnSpawn = false
        gui.DisplayOrder = 99999
        local bg = Instance.new("Frame")
        bg.Size = UDim2.fromScale(1, 1)
        bg.BackgroundColor3 = Color3.fromRGB(0, 255, 0)
        bg.BorderSizePixel = 0
        bg.Parent = gui
        
        local vpf = Instance.new("ViewportFrame")
        vpf.Size = UDim2.fromScale(1, 1)
        vpf.BackgroundTransparency = 1
        vpf.Ambient = Color3.fromRGB(200, 200, 200)  Keeps the character well-lit
        vpf.Parent = bg
        
        local vpfCamera = Instance.new("Camera")
        vpf.CurrentCamera = vpfCamera
        vpfCamera.Parent = vpf
        

        character.Archivable = true
        local clone = character:Clone()

        for _, desc in ipairs(clone:GetDescendants()) do
            if desc:IsA("Script") or desc:IsA("LocalScript") then
                desc:Destroy()
            end
        end
        local syncPairs = {}
        getSyncPairs(character, clone, syncPairs)
        
        clone.Parent = vpf
        gui.Parent = player:WaitForChild("PlayerGui")
    
        connection = RunService.RenderStepped:Connect(function()

            if not player.Character or not player.Character.Parent then
                togglePerfectGreenScreen()
                return
            end
            

            vpfCamera.CFrame = camera.CFrame
            vpfCamera.FieldOfView = camera.FieldOfView
            
            for _, pair in ipairs(syncPairs) do
                if pair.real and pair.clone and pair.real.Parent then
                    pair.clone.CFrame = pair.real.CFrame
                end
            end
        end)
        
    else

        if connection then
            connection:Disconnect()
            connection = nil
        end
        if gui then
            gui:Destroy()
            gui = nil
        end
    end
end

UserInputService.InputBegan:Connect(function(input, gameProcessed)
    if gameProcessed then return end
    if input.KeyCode == Enum.KeyCode.F3 then
        togglePerfectGreenScreen()
    end
end)