if not game:IsLoaded() then
    game.Loaded:Wait()
end

-- Services
local Players = game:GetService("Players")
local Player = Players.LocalPlayer
local Camera = workspace.CurrentCamera
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")
local TweenService = game:GetService("TweenService")

-- ESP Settings
local settings = {
    Enabled = true,
    ShowNames = true,
    ShowOutline = true,
    ShowFill = false,
    ShowLines = false,
    TeamColor = false,
    Font = 2
}

-- ESP Storage
local ESPCache = {}

-- Create UI
local screenGui = Instance.new("ScreenGui")
screenGui.Parent = game.CoreGui
screenGui.Name = "ESPConfig"

local frame = Instance.new("Frame")
frame.Size = UDim2.new(0, 200, 0, 250) -- Increased height for instructions
frame.Position = UDim2.new(0.8, 0, 0.5, -110)
frame.BackgroundColor3 = Color3.fromRGB(40, 40, 40)
frame.BorderSizePixel = 0
frame.Active = true
frame.Draggable = true
frame.Parent = screenGui

-- Add drag handle
local dragHandle = Instance.new("TextLabel")
dragHandle.Size = UDim2.new(1, 0, 0, 20)
dragHandle.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
dragHandle.Text = "ESP Settings (Drag)"
dragHandle.TextColor3 = Color3.new(1, 1, 1)
dragHandle.Font = Enum.Font.Gotham
dragHandle.TextSize = 12
dragHandle.Parent = frame

-- Add instructions
local instructions = Instance.new("TextLabel")
instructions.Size = UDim2.new(1, -10, 0, 30)
instructions.Position = UDim2.new(0, 5, 1, -35)
instructions.BackgroundTransparency = 1
instructions.Text = "Press K to toggle\nDrag top bar to move"
instructions.TextColor3 = Color3.new(0.8, 0.8, 0.8)
instructions.Font = Enum.Font.Gotham
instructions.TextSize = 12
instructions.TextWrapped = true
instructions.Parent = frame

local function CreateToggle(text, ypos, flag)
    local toggleFrame = Instance.new("Frame")
    toggleFrame.Size = UDim2.new(1, 0, 0, 30)
    toggleFrame.Position = UDim2.new(0, 0, 0, ypos)
    toggleFrame.BackgroundTransparency = 1
    toggleFrame.Parent = frame

    local toggleButton = Instance.new("TextButton")
    toggleButton.Size = UDim2.new(0, 120, 0, 25)
    toggleButton.Position = UDim2.new(0, 10, 0, 2)
    toggleButton.Text = text
    toggleButton.TextColor3 = Color3.new(1, 1, 1)
    toggleButton.Font = Enum.Font.Gotham
    toggleButton.TextSize = 14
    toggleButton.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
    toggleButton.BorderSizePixel = 0
    toggleButton.Parent = toggleFrame

    local stateIndicator = Instance.new("Frame")
    stateIndicator.Size = UDim2.new(0, 20, 0, 20)
    stateIndicator.Position = UDim2.new(1, -30, 0, 5)
    stateIndicator.BackgroundColor3 = Color3.new(0.2, 0.2, 0.2)
    stateIndicator.BorderSizePixel = 0
    stateIndicator.Parent = toggleFrame

    toggleButton.MouseButton1Click:Connect(function()
        settings[flag] = not settings[flag]
        stateIndicator.BackgroundColor3 = settings[flag] and Color3.new(0, 1, 0) or Color3.new(0.2, 0.2, 0.2)
        UpdateAllESP()
    end)
    
    stateIndicator.BackgroundColor3 = settings[flag] and Color3.new(0, 1, 0) or Color3.new(0.2, 0.2, 0.2)
end

-- Create Toggles
CreateToggle("Enable ESP", 25, "Enabled")
CreateToggle("Show Names", 55, "ShowNames")
CreateToggle("Show Outline", 85, "ShowOutline")
CreateToggle("Show Fill", 115, "ShowFill")
CreateToggle("Show Lines", 145, "ShowLines")
CreateToggle("Team Colors", 175, "TeamColor")

-- ESP Functions
local function CreateESP(player)
    if ESPCache[player] then return end
    
    local esp = {
        Highlight = Instance.new("Highlight"),
        NameLabel = Drawing.new("Text"),
        Line = Drawing.new("Line"),
        Connection = nil
    }
    
    esp.Highlight.FillTransparency = 1
    esp.Highlight.OutlineTransparency = 1
    esp.Highlight.Parent = player.Character or player.CharacterAdded:Wait()
    
    esp.NameLabel.Visible = false
    esp.NameLabel.Center = true
    esp.NameLabel.Outline = true
    esp.NameLabel.Font = settings.Font
    
    esp.Line.Visible = false
    esp.Line.Thickness = 1
    
    ESPCache[player] = esp
    
    esp.Connection = RunService.RenderStepped:Connect(function()
        if not player.Character then return end
        local humanoid = player.Character:FindFirstChild("Humanoid")
        local rootPart = player.Character:FindFirstChild("HumanoidRootPart")
        
        if humanoid and rootPart then
            -- Calculate view parameters
            local headPos, headOnScreen = Camera:WorldToScreenPoint(player.Character.Head.Position)
            local rootPos, rootOnScreen = Camera:WorldToViewportPoint(rootPart.Position)
            
            -- Update Highlight
            esp.Highlight.Enabled = settings.Enabled
            esp.Highlight.FillTransparency = settings.ShowFill and 0.5 or 1
            esp.Highlight.OutlineTransparency = settings.ShowOutline and 0 or 1
            
            -- Update Colors
            local color = settings.TeamColor and player.TeamColor.Color or Color3.fromHSV(
                math.clamp((rootPart.Position - Camera.CFrame.Position).Magnitude / 500, 0, 1),
                0.75,
                1
            )
            esp.Highlight.FillColor = color
            esp.Highlight.OutlineColor = color
            
            -- Update Name
            esp.NameLabel.Visible = settings.Enabled and settings.ShowNames and headOnScreen
            if esp.NameLabel.Visible then
                esp.NameLabel.Position = Vector2.new(headPos.X, headPos.Y + 30)
                esp.NameLabel.Text = player.Name
                esp.NameLabel.Color = color
                esp.NameLabel.Size = 18
            end
            
            -- Update Line (only if player is in front of camera)
            local lineVisible = settings.Enabled and settings.ShowLines and rootPos.Z > 0
            esp.Line.Visible = lineVisible
            if lineVisible then
                esp.Line.From = Vector2.new(Camera.ViewportSize.X/2, Camera.ViewportSize.Y)
                esp.Line.To = Vector2.new(rootPos.X, rootPos.Y)
                esp.Line.Color = color
            else
                esp.Line.Visible = false
            end
        end
    end)
end

function UpdateAllESP()
    for player, esp in pairs(ESPCache) do
        esp.Highlight.Enabled = settings.Enabled
        esp.NameLabel.Visible = settings.Enabled and settings.ShowNames
        esp.Line.Visible = settings.Enabled and settings.ShowLines
    end
end

-- Player Handling
Players.PlayerAdded:Connect(function(player)
    player.CharacterAdded:Connect(function()
        CreateESP(player)
    end)
    if player.Character then
        CreateESP(player)
    end
end)

Players.PlayerRemoving:Connect(function(player)
    if ESPCache[player] then
        ESPCache[player].Connection:Disconnect()
        ESPCache[player].Highlight:Destroy()
        ESPCache[player].NameLabel:Remove()
        ESPCache[player].Line:Remove()
        ESPCache[player] = nil
    end
end)

-- Initialize
for _, player in ipairs(Players:GetPlayers()) do
    if player ~= Player then
        CreateESP(player)
    end
end

-- Toggle UI Visibility with K key
UserInputService.InputBegan:Connect(function(input)
    if input.KeyCode == Enum.KeyCode.K then
        frame.Visible = not frame.Visible
    end
end)