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

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

local aimlockEnabled = false
local aimlockKey = Enum.KeyCode.Q
local fovRadius = 250 
local npcList = {}
local binding = false
local smoothness = 0 

local ScreenGui = Instance.new("ScreenGui", player.PlayerGui)
ScreenGui.Name = "DaTrack_Aim_Ultra"
ScreenGui.ResetOnSpawn = false

local FOVCircle = Instance.new("Frame", ScreenGui)
FOVCircle.Size = UDim2.new(0, fovRadius * 2, 0, fovRadius * 2)
FOVCircle.AnchorPoint = Vector2.new(0.5, 0.5)
FOVCircle.Position = UDim2.new(0.5, 0, 0.5, 0)
FOVCircle.BackgroundTransparency = 1
FOVCircle.BorderSizePixel = 1
FOVCircle.BorderColor3 = Color3.fromRGB(255, 255, 0)
FOVCircle.Visible = false
Instance.new("UICorner", FOVCircle).CornerRadius = UDim.new(1, 0)

local Main = Instance.new("Frame", ScreenGui)
Main.Size = UDim2.new(0, 160, 0, 160)
Main.Position = UDim2.new(0.02, 0, 0.15, 0)
Main.BackgroundColor3 = Color3.fromRGB(15, 15, 15)
Main.Active = true
Main.Draggable = true
Instance.new("UICorner", Main)

local function createBtn(txt, y, col)
    local b = Instance.new("TextButton", Main)
    b.Size = UDim2.new(0.9, 0, 0, 30)
    b.Position = UDim2.new(0.05, 0, 0, y)
    b.BackgroundColor3 = col
    b.Text = txt
    b.TextColor3 = Color3.new(1, 1, 1)
    b.Font = Enum.Font.Code
    Instance.new("UICorner", b)
    return b
end

local aimBtn = createBtn("LOCK: OFF", 10, Color3.fromRGB(180, 0, 0))
local bindBtn = createBtn("BIND: Q", 45, Color3.fromRGB(40, 40, 45))

local SliderBack = Instance.new("Frame", Main)
SliderBack.Size = UDim2.new(0.9, 0, 0, 20)
SliderBack.Position = UDim2.new(0.05, 0, 0, 90)
SliderBack.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
Instance.new("UICorner", SliderBack)

local SliderFill = Instance.new("Frame", SliderBack)
SliderFill.Size = UDim2.new(0, 0, 1, 0)
SliderFill.BackgroundColor3 = Color3.fromRGB(0, 120, 255)
Instance.new("UICorner", SliderFill)

local SliderLabel = Instance.new("TextLabel", SliderBack)
SliderLabel.Size = UDim2.new(1, 0, 1, 0)
SliderLabel.BackgroundTransparency = 1
SliderLabel.Text = "SMOOTH: 0"
SliderLabel.TextColor3 = Color3.new(1, 1, 1)
SliderLabel.Font = Enum.Font.Code
SliderLabel.TextSize = 12

local isSliding = false
local function updateSlider()
    local mousePos = UserInputService:GetMouseLocation().X
    local relativePos = math.clamp((mousePos - SliderBack.AbsolutePosition.X) / SliderBack.AbsoluteSize.X, 0, 1)
    SliderFill.Size = UDim2.new(relativePos, 0, 1, 0)
    smoothness = math.floor(relativePos * 100)
    SliderLabel.Text = "SMOOTH: " .. smoothness
end

SliderBack.InputBegan:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseButton1 then isSliding = true end
end)
UserInputService.InputEnded:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseButton1 then isSliding = false end
end)
UserInputService.InputChanged:Connect(function(input)
    if isSliding and input.UserInputType == Enum.UserInputType.MouseMovement then updateSlider() end
end)

local function refreshNPCs()
    local temp = {}
    for _, v in ipairs(workspace:GetDescendants()) do
        if v:IsA("Humanoid") then
            local model = v.Parent
            if model and model:IsA("Model") and not Players:GetPlayerFromCharacter(model) and model ~= player.Character then
                local targetPart = model:FindFirstChild("Head") or model:FindFirstChild("UpperTorso") or model:FindFirstChild("HumanoidRootPart")
                if targetPart then table.insert(temp, targetPart) end
            end
        end
    end
    npcList = temp
end

workspace.DescendantAdded:Connect(function(d) if d:IsA("Humanoid") then task.wait(0.5) refreshNPCs() end end)
refreshNPCs()

local function isVisible(target)
    if not player.Character then return false end
    local origin = Camera.CFrame.Position
    local dir = (target.Position - origin).Unit * (target.Position - origin).Magnitude
    local params = RaycastParams.new()
    params.FilterType = Enum.RaycastFilterType.Exclude
    params.FilterDescendantsInstances = {player.Character, Camera}
    
    local res = workspace:Raycast(origin, dir, params)
    return not res or res.Instance:IsDescendantOf(target.Parent)
end

local function getTarget()
    local closest, shortest = nil, fovRadius
    local center = Vector2.new(Camera.ViewportSize.X/2, Camera.ViewportSize.Y/2)
    
    for _, part in ipairs(npcList) do
        if part and part.Parent then
            local sPos, onScreen = Camera:WorldToViewportPoint(part.Position)
            if onScreen then
                local dist = (Vector2.new(sPos.X, sPos.Y) - center).Magnitude
                if dist < shortest and isVisible(part) then 
                    shortest = dist
                    closest = part 
                end
            end
        end
    end
    return closest
end

RunService.RenderStepped:Connect(function()
    if aimlockEnabled then
        local target = getTarget()
        if target then
            local lookAt = CFrame.new(Camera.CFrame.Position, target.Position)
            if smoothness == 0 then
                Camera.CFrame = lookAt
            else
                local weight = math.clamp(1 - (smoothness / 100), 0.01, 1)
                Camera.CFrame = Camera.CFrame:Lerp(lookAt, weight)
            end
        end
    end
end)

local function toggle()
    aimlockEnabled = not aimlockEnabled
    aimBtn.Text = aimlockEnabled and "LOCK: ON" or "LOCK: OFF"
    aimBtn.BackgroundColor3 = aimlockEnabled and Color3.fromRGB(0, 180, 0) or Color3.fromRGB(180, 0, 0)
    FOVCircle.Visible = aimlockEnabled
end

aimBtn.MouseButton1Click:Connect(toggle)
bindBtn.MouseButton1Click:Connect(function()
    binding = true
    bindBtn.Text = "..."
    bindBtn.BackgroundColor3 = Color3.fromRGB(100, 100, 100)
end)

UserInputService.InputBegan:Connect(function(i, gpe)
    if binding then
        aimlockKey = i.KeyCode
        bindBtn.Text = "BIND: " .. i.KeyCode.Name
        bindBtn.BackgroundColor3 = Color3.fromRGB(40, 40, 45)
        binding = false
    elseif not gpe and i.KeyCode == aimlockKey then 
        toggle() 
    end
end)
print("Open source/Thanks for using it 'v'")