NPC Follow

local NPC = workspace.Dummy
function getClosestPlayer()
    local closest_player, closest_distance = nil, 200
    for i, player in pairs(workspace:GetChildren()) do
        if player:FindFirstChild("Humanoid") and player ~= NPC then
            local distance = (NPC.PrimaryPart.Position - player.PrimaryPart.Position).Magnitude
            if distance < closest_distance then
                closest_player = player
                closest_distance = distance
            end
        end
    end
    return closest_player, closest_distance
end
while true do
    local player, distance = getClosestPlayer()
    if player and distance > 10 then
        NPC.Humanoid:MoveTo(player.PrimaryPart.Position)
        local stopped
        NPC.Humanoid.MoveToFinished:Connect(function()
            stopped = true
        end)
        repeat
            local distance = (NPC.PrimaryPart.Position-player.PrimaryPart.Position).Magnitude
            if distance < 10 then
                NPC.Humanoid:MoveTo((NPC.HumanoidRootPart.CFrame*CFrame.new(0,0,-3)).p)
                break
            end
            wait()
        until stopped == true
    else
        wait(1)
    end

end