function SendPollutionStats()
  if options.enablePollution then
    local pollutionParts = {}
    pollutionParts[#pollutionParts + 1] = "---pollution-stats---\n"
    for _, surface in pairs(game.surfaces) do
      local surface_name = surface.name

      local pollution_input = game.surfaces[surface_name].pollution_statistics.input_counts
      local pollution_output = game.surfaces[surface_name].pollution_statistics.output_counts

      if surface.platform ~= nil then
        surface_name = surface.platform.name
      end

      for name, stat in pairs(pollution_input) do
        pollutionParts[#pollutionParts + 1] = ("%s:in:%s:%d"):format(surface_name, name, stat)
      end

      for name, stat in pairs(pollution_output) do
        pollutionParts[#pollutionParts + 1] = ("%s:out:%s:%d"):format(surface_name, name, stat)
      end
    end
    helpers.send_udp(udpAddress, table.concat(pollutionParts, "\n"), serverIndex)
  end
end

function SendKillStats()
  if options.enableKills then
    local killParts = {}
    killParts[#killParts + 1] = "---kill-stats---\n"
    for _, surface in pairs(game.surfaces) do
      local surface_name = surface.name

      local kill_input = game.forces["player"].get_kill_count_statistics(surface_name).input_counts
      local kill_output = game.forces["player"].get_kill_count_statistics(surface_name).output_counts

      if surface.platform ~= nil then
        surface_name = surface.platform.name
      end

      for name, stat in pairs(kill_input) do
        killParts[#killParts + 1] = ("%s:in:%s:%d"):format(surface_name, name, stat)
      end

      for name, stat in pairs(kill_output) do
        killParts[#killParts + 1] = ("%s:out:%s:%d"):format(surface_name, name, stat)
      end
    end
    helpers.send_udp(udpAddress, table.concat(killParts, "\n"), serverIndex)
  end
end

function GetEvolution()
  local evolutionParts = {}
  local playerForce = game.forces["player"]
  evolutionParts[#evolutionParts + 1] = "---evolution-stats---\n"
  for _, surface in pairs(game.surfaces) do
    evolutionParts[#evolutionParts + 1] = ("%s:%d:%d:%d:%d"):format(
      surface.name,
      playerForce.get_evolution_factor(surface),
      playerForce.get_evolution_factor_by_pollution(surface),
      playerForce.get_evolution_factor_by_time(surface),
      playerForce.get_evolution_factor_by_killing_spawners(surface))
  end
  return table.concat(evolutionParts, "\n")
end