local fov = 40
local maxTransparency = 0.1 -- Transparência máxima dentro do círculo (0.1 = 10% de transparência)
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")
local Players = game:GetService("Players")
local Cam = game.Workspace.CurrentCamera

local FOVring = Drawing.new("Circle")
FOVring.Visible = true
FOVring.Thickness = 2
FOVring.Color = Color3.fromRGB(128, 0, 128) -- Cor roxa
FOVring.Filled = false
FOVring.Radius = fov
FOVring.Position = Cam.ViewportSize / 2

local function updateDrawings()
    local camViewportSize = Cam.ViewportSize
    FOVring.Position = camViewportSize / 2
end

local function onKeyDown(input)
    if input.KeyCode == Enum.KeyCode.Delete then
        RunService:UnbindFromRenderStep("FOVUpdate")
        FOVring:Remove()
    end
end

UserInputService.InputBegan:Connect(onKeyDown)

local function lookAt(target)
    local lookVector = (target - Cam.CFrame.Position).unit
    local newCFrame = CFrame.new(Cam.CFrame.Position, Cam.CFrame.Position + lookVector)
    Cam.CFrame = newCFrame
end

local function calculateTransparency(distance)
    -- Ajuste a transparência com base na distância do centro do círculo
    local maxDistance = fov -- A distância máxima do centro do círculo
    local transparency = (1 - (distance / maxDistance)) * maxTransparency
    return transparency
end

local function getClosestPlayerInFOV(trg_part)
    local nearest = nil
    local last = math.huge
    local playerMousePos = Cam.ViewportSize / 2

    for _, player in ipairs(Players:GetPlayers()) do
        if player ~= Players.LocalPlayer then
            local part = player.Character and player.Character:FindFirstChild(trg_part)
            if part then
                local ePos, isVisible = Cam:WorldToViewportPoint(part.Position)
                local distance = (Vector2.new(ePos.x, ePos.y) - playerMousePos).Magnitude

                if distance < last and isVisible and distance < fov then
                    last = distance
                    nearest = player
                end
            end
        end
    end

    return nearest
end

RunService.RenderStepped:Connect(function()
    updateDrawings()
    local closest = getClosestPlayerInFOV("Head")
    if closest and closest.Character:FindFirstChild("Head") then
        lookAt(closest.Character.Head.Position)
    end
    
    if closest then
        local ePos, isVisible = Cam:WorldToViewportPoint(closest.Character.Head.Position)
        local distance = (Vector2.new(ePos.x, ePos.y) - (Cam.ViewportSize / 2)).Magnitude
        FOVring.Transparency = calculateTransparency(distance)
    else
        FOVring.Transparency = 0.1 -- Mantenha completamente visível quando nenhum jogador estiver no FOV
    end
end)