function onPlayer(player)
    while true do
        wait()
        local torso = player.Character:WaitForChild("Torso")
        if torso then
        local distance = (torso.Position - script.Parent.Position).magnitude
            if distance < 10 then
            script.Parent.Transparency=0
        else
            script.Parent.Transparency=1
        end
    end
    end
end

game.Players.PlayerAdded:connect(onPlayer)