61 lines
1.6 KiB
Lua
61 lines
1.6 KiB
Lua
--[[
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Hyperloop Mod
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=============
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Copyright (C) 2017-2019 Joachim Stolberg
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LGPLv2.1+
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See LICENSE.txt for more information
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mod storage and data integrity
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]]--
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-- for lazy programmers
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local S = function(pos) if pos then return minetest.pos_to_string(pos) end end
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local P = minetest.string_to_pos
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local M = minetest.get_meta
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hyperloop.Stations = hyperloop.Network:new()
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hyperloop.Elevators = hyperloop.Network:new()
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-- Check all nodes on the map and delete useless data base entries
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local function check_data_base()
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-- used for VM get_node
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local tube = tubelib2.Tube:new({})
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hyperloop.Stations:filter(function(pos)
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local _,node = tube:get_node(pos)
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return node.name == "hyperloop:station" or node.name == "hyperloop:junction"
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end)
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hyperloop.Elevators:filter(function(pos)
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local _,node = tube:get_node(pos)
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return node.name == "hyperloop:elevator_bottom"
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end)
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end
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local storage = minetest.get_mod_storage()
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hyperloop.Stations:deserialize(storage:get_string("Stations"))
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hyperloop.Elevators:deserialize(storage:get_string("Elevators"))
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local function update_mod_storage()
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minetest.log("action", "[Hyperloop] Store data...")
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storage:set_string("Stations", hyperloop.Stations:serialize())
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storage:set_string("Elevators", hyperloop.Elevators:serialize())
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-- store data each hour
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minetest.after(60*60, update_mod_storage)
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minetest.log("action", "[Hyperloop] Data stored")
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end
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minetest.register_on_shutdown(function()
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update_mod_storage()
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end)
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-- delete data base entries without corresponding nodes
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--minetest.after(5, check_data_base)
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-- store data after one hour
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minetest.after(60*60, update_mod_storage)
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