objects = {}

textitem = nil

enabled = true
waittime = 0

function onShipEnteredZone(ship, zone, zoneType, zoneId)
  if waittime <= 0 then
    if enabled then
      enabled = false
      textitem:setText("OFF")
      for index, object in ipairs(objects) do
        object:setVel(0, 0)
      end
    else
      textitem:setText("ON")
      enabled = true
    end
    textitem:setGeom(textitem:getGeom())  -- this line is to properly send packUpdate to clients
    waittime = 500
  end
end

function onTick(timePassed)
  if waittime >= 0 then
    waittime = waittime - timePassed
  end

  if enabled then
    for index, object in ipairs(objects) do
      vel = object:getVel()
      pos = object:getLoc()
      a = math.atan2(pos.x, pos.y)
      object:setVel(vel.x - math.cos(a) * 2 * timePassed, vel.y + math.sin(a) * 2 * timePassed)
    end
  end
end

function main()
  for a = 1, 100 do
    objects[a] = ResourceItem.new()
    objects[a]:setLoc(math.cos(a * 2.3) * (400 + a), math.sin(a * 2.3) * (400 + a))
    levelgen:addItem(objects[a])
    a=a+1
  end

  textitem = TextItem.new()
  textitem:setText("ON")
  textitem:setGeom(-175, 190, -50, 190)
  levelgen:addItem(textitem)

  enabled = true
  waittime = 0
  subscribe(Event.tick)
  subscribe(Event.ShipEnteredZone)
end