-- ESP GUI Script (Place in StarterPlayerScripts or use an executor)
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local TweenService = game:GetService("TweenService")

local LocalPlayer = Players.LocalPlayer
local Camera = workspace.CurrentCamera

-- Create ScreenGui
local ScreenGui = Instance.new("ScreenGui")
ScreenGui.Name = "ESP"
ScreenGui.Parent = LocalPlayer:WaitForChild("PlayerGui")
ScreenGui.ResetOnSpawn = false

-- ESP Settings
local ESP_CONFIG = {
    BOX_COLOR = Color3.fromRGB(255, 0, 0),
    BOX_TRANSPARENCY = 0.7,
    TEXT_COLOR = Color3.fromRGB(255, 255, 255),
    TEXT_SIZE = 14,
    DISTANCE_COLOR = Color3.fromRGB(0, 255, 0),
    UPDATE_RATE = 1/60 -- 60 FPS
}

-- Player ESP data table
local ESP_DATA = {}

-- Create ESP elements for a player
local function createESP(player)
    local data = {}
    
    -- Main box
    data.Box = Instance.new("Frame")
    data.Box.Size = UDim2.new(0, 0, 0, 0)
    data.Box.Position = UDim2.new(0, 0, 0, 0)
    data.Box.BackgroundColor3 = ESP_CONFIG.BOX_COLOR
    data.Box.BorderSizePixel = 0
    data.Box.Parent = ScreenGui
    
    local BoxCorner = Instance.new("UICorner")
    BoxCorner.CornerRadius = UDim.new(0, 2)
    BoxCorner.Parent = data.Box
    
    local BoxStroke = Instance.new("UIStroke")
    BoxStroke.Color = Color3.fromRGB(255, 255, 255)
    BoxStroke.Thickness = 2
    BoxStroke.Transparency = 0.5
    BoxStroke.Parent = data.Box
    
    -- Distance text
    data.DistanceLabel = Instance.new("TextLabel")
    data.DistanceLabel.Size = UDim2.new(1, 4, 0, 20)
    data.DistanceLabel.Position = UDim2.new(0.5, 0, 0, -25)
    data.DistanceLabel.BackgroundTransparency = 1
    data.DistanceLabel.Text = ""
    data.DistanceLabel.TextColor3 = ESP_CONFIG.DISTANCE_COLOR
    data.DistanceLabel.TextScaled = true
    data.DistanceLabel.Font = Enum.Font.GothamBold
    data.DistanceLabel.TextStrokeTransparency = 0
    data.DistanceLabel.TextStrokeColor3 = Color3.fromRGB(0, 0, 0)
    data.DistanceLabel.Parent = data.Box
    
    -- Player name text
    data.NameLabel = Instance.new("TextLabel")
    data.NameLabel.Size = UDim2.new(1, 4, 0, 18)
    data.NameLabel.Position = UDim2.new(0.5, 0, 1, 2)
    data.NameLabel.BackgroundTransparency = 1
    data.NameLabel.Text = player.Name
    data.NameLabel.TextColor3 = ESP_CONFIG.TEXT_COLOR
    data.NameLabel.TextScaled = true
    data.NameLabel.Font = Enum.Font.Gotham
    data.NameLabel.TextStrokeTransparency = 0
    data.NameLabel.TextStrokeColor3 = Color3.fromRGB(0, 0, 0)
    data.NameLabel.Parent = data.Box
    
    ESP_DATA[player] = data
end

-- Remove ESP for a player
local function removeESP(player)
    if ESP_DATA[player] then
        for _, child in pairs(ESP_DATA[player]:GetChildren()) do
            child:Destroy()
        end
        ESP_DATA[player].Box:Destroy()
        ESP_DATA[player] = nil
    end
end

-- Update ESP position and visibility
local function updateESP()
    for player, data in pairs(ESP_DATA) do
        if player.Parent and player.Character and player.Character:FindFirstChild("HumanoidRootPart") and player.Character:FindFirstChild("Humanoid") then
            local character = player.Character
            local humanoidRootPart = character.HumanoidRootPart
            local humanoid = character.Humanoid
            
            -- Check if player is alive
            if humanoid.Health > 0 then
                -- Convert 3D position to 2D screen position
                local screenPoint, onScreen = Camera:WorldToViewportPoint(humanoidRootPart.Position)
                
                if onScreen then
                    -- Calculate distance
                    local distance = math.floor((LocalPlayer.Character.HumanoidRootPart.Position - humanoidRootPart.Position).Magnitude)
                    
                    -- Get character size
                    local head = character:FindFirstChild("Head")
                    local sizeY = head and head.Size.Y or 2
                    local sizeX = sizeY * 0.5
                    
                    -- Calculate box size based on distance
                    local boxWidth = math.clamp(2000 / distance, 800, 3000)
                    local boxHeight = boxWidth * 1.8
                    
                    -- Position and size box
                    data.Box.Size = UDim2.new(0, boxWidth, 0, boxHeight)
                    data.Box.Position = UDim2.new(0, screenPoint.X - boxWidth/2, 0, screenPoint.Y - boxHeight/2)
                    
                    -- Update distance text
                    data.DistanceLabel.Text = distance .. " studs"
                    
                    -- Fade based on distance
                    local alpha = math.clamp(1 - (distance / 1000), 0.3, 1)
                    data.Box.BackgroundTransparency = 1 - alpha * ESP_CONFIG.BOX_TRANSPARENCY
                    data.BoxStroke.Transparency = 1 - alpha * 0.5
                    data.DistanceLabel.TextTransparency = 1 - alpha
                    data.NameLabel.TextTransparency = 1 - alpha
                    
                    data.Box.Visible = true
                else
                    data.Box.Visible = false
                end
            else
                data.Box.Visible = false
            end
        else
            data.Box.Visible = false
        end
    end
end

-- Handle player joining
local function onPlayerAdded(player)
    player.CharacterAdded:Connect(function()
        wait(1) -- Wait for character to fully load
        createESP(player)
    end)
    
    -- Create ESP for existing character
    if player.Character then
        createESP(player)
    end
end

-- Handle player leaving
local function onPlayerRemoving(player)
    removeESP(player)
end

-- Initialize ESP for all players
for _, player in pairs(Players:GetPlayers()) do
    if player ~= LocalPlayer then
        onPlayerAdded(player)
    end
end

-- Connect events
Players.PlayerAdded:Connect(onPlayerAdded)
Players.PlayerRemoving:Connect(onPlayerRemoving)

-- Update loop
RunService.Heartbeat:Connect(updateESP)

-- Toggle keybind (optional - Press 'E' to toggle ESP)
local espEnabled = true
UserInputService = game:GetService("UserInputService")
UserInputService.InputBegan:Connect(function(input, gameProcessed)
    if gameProcessed then return end
    
    if input.KeyCode == Enum.KeyCode.E then
        espEnabled = not espEnabled
        ScreenGui.Enabled = espEnabled
        
        for _, data in pairs(ESP_DATA) do
            data.Box.Visible = espEnabled
        end
    end
end)

print("ESP GUI Loaded! Press 'E' to toggle on/off")