control.lua

script.on_init(function(event)
  if remote.interfaces['freeplay'] then
    local created_items = remote.call('freeplay', 'get_created_items')
    created_items['landfill'] = 1000
    created_items['stone'] = 250
    created_items['log'] = 200
    created_items["iron-plate"] = 1000
    created_items["copper-plate"] = 500
    created_items["transport-belt"] = 100
    created_items["burner-inserter"] = 50
    created_items['py-tank-1000'] = 1
    created_items['py-tank-3000'] = 1
    created_items['py-tank-5000'] = 1
    created_items['py-tank-8000'] = 1
    created_items["stone-furnace"] = 1
    created_items["py-sinkhole"] = 2
    created_items["multiblade-turbine-mk01"] = 1
    if script.active_mods["pyhardmode"] then
      if script.active_mods["configurable-valves"] then
        created_items["configurable-valve"] = 6
      end
      if script.active_mods["valves"] then
        created_items["valves-overflow"] = 3
        created_items["valves-top_up"] = 3
      end
    end
    remote.call('freeplay', 'set_created_items', created_items)
  end
end)

script.on_event(defines.events.on_player_created, function(event)
  local player = game.players[event.player_index]
  if not player.valid then return end
  local nauvis = game.surfaces["nauvis"]
  if not nauvis then return end
  local elevation = game.surfaces["nauvis"].map_gen_settings.property_expression_names.elevation
	if elevation ~= "pyblock_classic" and elevation ~= "pyblock_island" and elevation ~= "pyblock_archipeligo" then
		player.print {"messages.pyblock-warning-no-preset"}
  end
  player.print {"messages.pyblock-intro"}
end)

-- landfill generation script
script.on_event(defines.events.on_chunk_generated, function (event)
  local tiles = event.surface.find_tiles_filtered{
    area = event.area,
    collision_mask = "water_tile",
    invert = true
  }
  local to_replace = {}
  for _, tile in pairs(tiles) do
    to_replace[#to_replace+1] = {
      position = tile.position,
      name = "landfill"
    }
  end
  -- set as landfill
  event.surface.set_tiles(
    to_replace
  )
  -- set water as hidden tile
  for _, tile in pairs(to_replace) do
    event.surface.set_hidden_tile(tile.position, "water")
  end
end)