local time_delay = 20000  -- millisecond delay, i.e. 20 seconds

function invisible_wall2_init( e )
	Hide( e )
end

local time_to_activate = nil
	 
function invisible_wall2_main( e )
	if time_to_activate == nil then
		time_to_activate = g_Time + time_delay
		return
	end
	
	if g_Time > time_to_activate then
		CollisionOff( e )
		time_to_activate = math.huge
	end
end