/c
local player = game.player
local perms = game.permissions
local nowalk = perms.get_group("no-walk")
local default = perms.get_group("Default")

if not nowalk then
	nowalk = perms.create_group("no-walk")
	nowalk.set_allows_action(defines.input_action.start_walking, false)
end

local toggle_interval = 5 * 60
script.on_nth_tick(nil)

local toggle_which = false
toggle_which = (toggle_which and "group") or "permission"

if toggle_which == "group" then
	nowalk.set_allows_action(defines.input_action.start_walking, false)

	script.on_nth_tick(toggle_interval, function()
		local tick = game.tick.." "
		if player.permission_group.name == "no-walk" then
			game.print(tick.."walk")
			player.permission_group = default
		else
			game.print(tick.."no walk")
			player.permission_group = nowalk
		end
	end)
elseif toggle_which == "permission" then
	player.permission_group = nowalk

	script.on_nth_tick(toggle_interval, function()
		local walk_int = defines.input_action.start_walking
		local tick = game.tick.." "
		nowalk.set_allows_action(walk_int, not nowalk.allows_action(walk_int))
		game.print(tick.."can start walking? "..tostring(nowalk.allows_action(walk_int)))
	end)
else
	game.print("whoops, toggling neither way")
end