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

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

-- Fallback settings if not set
getgenv().Settings = getgenv().Settings or {
    Fov = 100, -- Circle radius
    FovCircle = true,
    Hitbox = "Head"
}

-- Drawing Circle Setup (Matches reference image)
local Circle = Drawing.new("Circle")
Circle.Thickness = 1
Circle.Color = Color3.new(0, 0, 0) -- Black ring
Circle.Transparency = 1            -- Fully visible border
Circle.Filled = false              -- Transparent inside
Circle.ZIndex = 2
Circle.Visible = true

-- Get Closest Target Within FOV
local function GetClosest(Fov)
    local Target, Closest = nil, math.huge
    for _, v in ipairs(Players:GetPlayers()) do
        if v ~= LocalPlayer and v.Character and v.Character:FindFirstChild("HumanoidRootPart") then
            local screenPos, onScreen = Camera:WorldToScreenPoint(v.Character.HumanoidRootPart.Position)
            if onScreen then
                local dist = (Vector2.new(screenPos.X, screenPos.Y) - Vector2.new(Camera.ViewportSize.X / 2, Camera.ViewportSize.Y / 2)).Magnitude
                if dist < Closest and dist <= Fov then
                    Closest = dist
                    Target = v
                end
            end
        end
    end
    return Target
end

-- Update circle position and find target
local Target
RunService.RenderStepped:Connect(function()
    local center = Vector2.new(Camera.ViewportSize.X / 2, Camera.ViewportSize.Y / 2)
    Circle.Position = center
    Circle.Radius = getgenv().Settings.Fov
    Circle.Visible = getgenv().Settings.FovCircle

    Target = GetClosest(getgenv().Settings.Fov)
end)

-- Aimbot Hook Logic
local Old
Old = hookmetamethod(game, "__namecall", function(Self, ...)
    local Args = { ... }
    local Method = getnamecallmethod()

    if not checkcaller() and Method == "FireServer" then
        if Self.Name == "0+." then
            Args[1].MessageWarning = {}
            Args[1].MessageError = {}
            Args[1].MessageOutput = {}
            Args[1].MessageInfo = {}
        elseif Self.Name == "RemoteEvent" and Args[2] == "Bullet" then
            if Target and Target.Character and Target.Character:FindFirstChild(getgenv().Settings.Hitbox) then
                local Hitbox = Target.Character[getgenv().Settings.Hitbox]
                Args[3] = Target.Character
                Args[4] = Hitbox
                Args[5] = Hitbox.Position
            end
        end
    end

    return Old(Self, unpack(Args))
end)