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|
--[[
Advanced Trains - Minetest Mod
Copyright (C) 2016-2020 Moritz Blei (orwell96) and contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
]]
local lot = os.clock()
minetest.log("action", "[advtrains] Loading...")
-- There is no need to support 0.4.x anymore given that the compatitability with it is already broken by 1bb1d825f46af3562554c12fba35a31b9f7973ff
attrans = minetest.get_translator ("advtrains")
--advtrains
advtrains = {trains={}, player_to_train_mapping={}}
-- =======================Development/debugging settings=====================
-- DO NOT USE FOR NORMAL OPERATION
local DUMP_DEBUG_SAVE = false
-- dump the save files in human-readable format into advtrains_DUMP
local GENERATE_ATRICIFIAL_LAG = false
local HOW_MANY_LAG = 1.0
-- Simulate a higher server step interval, as it occurs when the server is on high load
advtrains.IGNORE_WORLD = false
-- Run advtrains without respecting the world map
-- - No world collision checks occur
-- - The NDB forcibly places all nodes stored in it into the world regardless of the world's content.
-- - Rails do not set the 'attached_node' group
-- This mode can be useful for debugging/testing a world without the map data available
-- In this case, choose 'singlenode' as mapgen
local NO_SAVE = false
-- Do not save any data to advtrains save files
-- ==========================================================================
-- Use a global slowdown factor to slow down train movements. Now a setting
advtrains.DTIME_LIMIT = tonumber(minetest.settings:get("advtrains_dtime_limit")) or 0.2
advtrains.SAVE_INTERVAL = tonumber(minetest.settings:get("advtrains_save_interval")) or 60
--Constant for maximum connection value/division of the circle
AT_CMAX = 16
-- get wagon loading range
advtrains.wagon_load_range = tonumber(minetest.settings:get("advtrains_wagon_load_range"))
if not advtrains.wagon_load_range then
advtrains.wagon_load_range = tonumber(minetest.settings:get("active_block_range"))*16
end
--pcall
local no_action=false
local function reload_saves()
atwarn("Restoring saved state in 1 second...")
no_action=true
advtrains.lock_path_inval = false
--read last save state and continue, as if server was restarted
for aoi, le in pairs(minetest.luaentities) do
if le.is_wagon then
le.object:remove()
end
end
minetest.after(1, function()
advtrains.load()
atwarn("Reload successful!")
advtrains.ndb.restore_all()
end)
end
advtrains.modpath = minetest.get_modpath("advtrains")
--Advtrains dump (special treatment of pos and sigd)
function atdump(t, intend)
local str
if type(t)=="table" then
if t.x and t.y and t.z then
str=minetest.pos_to_string(t)
elseif t.p and t.s then -- interlocking sigd
str="S["..minetest.pos_to_string(t.p).."/"..t.s.."]"
elseif advtrains.lines and t.s and t.m then -- RwT
str=advtrains.lines.rwt.to_string(t)
else
str="{"
local intd = (intend or "") .. " "
for k,v in pairs(t) do
if type(k)~="string" or not string.match(k, "^path[_]?") then
-- do not print anything path-related
str = str .. "\n" .. intd .. atdump(k, intd) .. " = " ..atdump(v, intd)
end
end
str = str .. "\n" .. (intend or "") .. "}"
end
elseif type(t)=="boolean" then
if t then
str="true"
else
str="false"
end
elseif type(t)=="function" then
str="<function>"
elseif type(t)=="userdata" then
str="<userdata>"
else
str=""..t
end
return str
end
function advtrains.print_concat_table(a)
local str=""
local stra=""
local t
for i=1,20 do
t=a[i]
if t==nil then
stra=stra.."nil "
else
str=str..stra
stra=""
str=str..atdump(t).." "
end
end
return str
end
atprint=function() end
atlog=function(t, ...)
local text=advtrains.print_concat_table({t, ...})
minetest.log("action", "[advtrains]"..text)
end
atwarn=function(t, ...)
local text=advtrains.print_concat_table({t, ...})
minetest.log("warning", "[advtrains]"..text)
minetest.chat_send_all("[advtrains] -!- "..text)
end
sid=function(id) if id then return string.sub(id, -6) end end
--ONLY use this function for temporary debugging. for consistent debug prints use atprint
atdebug=function(t, ...)
local text=advtrains.print_concat_table({t, ...})
minetest.log("action", "[advtrains]"..text)
minetest.chat_send_all("[advtrains]"..text)
end
if minetest.settings:get_bool("advtrains_enable_debugging") then
atprint=function(t, ...)
local context=advtrains.atprint_context_tid or ""
if not context then return end
local text=advtrains.print_concat_table({t, ...})
advtrains.drb_record(context, text)
--atlog("@@",advtrains.atprint_context_tid,t,...)
end
dofile(advtrains.modpath.."/debugringbuffer.lua")
end
function assertt(var, typ)
if type(var)~=typ then
error("Assertion failed, variable has to be of type "..typ)
end
end
dofile(advtrains.modpath.."/helpers.lua");
--dofile(advtrains.modpath.."/debugitems.lua");
advtrains.meseconrules =
{{x=0, y=0, z=-1},
{x=1, y=0, z=0},
{x=-1, y=0, z=0},
{x=0, y=0, z=1},
{x=1, y=1, z=0},
{x=1, y=-1, z=0},
{x=-1, y=1, z=0},
{x=-1, y=-1, z=0},
{x=0, y=1, z=1},
{x=0, y=-1, z=1},
{x=0, y=1, z=-1},
{x=0, y=-1, z=-1},
{x=0, y=-2, z=0}}
advtrains.fpath=minetest.get_worldpath().."/advtrains"
advtrains.speed = dofile(advtrains.modpath.."/speed.lua")
dofile(advtrains.modpath.."/path.lua")
dofile(advtrains.modpath.."/trainlogic.lua")
dofile(advtrains.modpath.."/trainhud.lua")
dofile(advtrains.modpath.."/trackplacer.lua")
dofile(advtrains.modpath.."/copytool.lua")
dofile(advtrains.modpath.."/tracks.lua")
dofile(advtrains.modpath.."/occupation.lua")
dofile(advtrains.modpath.."/atc.lua")
dofile(advtrains.modpath.."/wagons.lua")
dofile(advtrains.modpath.."/protection.lua")
dofile(advtrains.modpath.."/trackdb_legacy.lua")
dofile(advtrains.modpath.."/nodedb.lua")
dofile(advtrains.modpath.."/couple.lua")
dofile(advtrains.modpath.."/signals.lua")
dofile(advtrains.modpath.."/misc_nodes.lua")
dofile(advtrains.modpath.."/crafting.lua")
dofile(advtrains.modpath.."/craft_items.lua")
dofile(advtrains.modpath.."/log.lua")
dofile(advtrains.modpath.."/passive.lua")
if mesecon then
dofile(advtrains.modpath.."/p_mesecon_iface.lua")
end
dofile(advtrains.modpath.."/lzb.lua")
--load/save
-- backup variables, used if someone should accidentally delete a sub-mod
-- As of version 4, only used once during migration from version 3 to 4
-- Since version 4, each of the mods stores a separate save file.
local MDS_interlocking, MDS_lines
advtrains.fpath=minetest.get_worldpath().."/advtrains"
dofile(advtrains.modpath.."/log.lua")
function advtrains.read_component(name)
local path = advtrains.fpath.."_"..name
minetest.log("action", "[advtrains] loading "..path)
local file, err = io.open(path, "r")
if not file then
minetest.log("warning", " Failed to read advtrains save data from file "..path..": "..(err or "Unknown Error"))
minetest.log("warning", " (this is normal when first enabling advtrains on this world)")
return
end
local tbl = minetest.deserialize(file:read("*a"))
file:close()
return tbl
end
function advtrains.avt_load()
-- check for new, split advtrains save file
local version = advtrains.read_component("version")
local tbl
if version and version == 4 then
advtrains.load_version_4()
return
-- NOTE: From here, legacy loading code!
elseif version and version == 3 then
-- we are dealing with the split-up system
minetest.log("action", "[advtrains] loading savefiles version 3")
local il_save = {
tcbs = true,
ts = true,
signalass = true,
rs_locks = true,
rs_callbacks = true,
influence_points = true,
npr_rails = true,
}
tbl={
trains = true,
wagon_save = true,
ptmap = true,
atc = true,
ndb = true,
lines = true,
version = 2,
}
for i,k in pairs(il_save) do
il_save[i] = advtrains.read_component("interlocking_"..i)
end
for i,k in pairs(tbl) do
tbl[i] = advtrains.read_component(i)
end
tbl["interlocking"] = il_save
else
local file, err = io.open(advtrains.fpath, "r")
if not file then
minetest.log("warning", " Failed to read advtrains save data from file "..advtrains.fpath..": "..(err or "Unknown Error"))
minetest.log("warning", " (this is normal when first enabling advtrains on this world)")
return
else
tbl = minetest.deserialize(file:read("*a"))
file:close()
end
end
if type(tbl) == "table" then
if tbl.version then
--congrats, we have the new save format.
advtrains.trains = tbl.trains
--Save the train id into the train table to avoid having to pass id around
for id, train in pairs(advtrains.trains) do
train.id = id
end
advtrains.wagons = tbl.wagon_save
advtrains.player_to_train_mapping = tbl.ptmap or {}
advtrains.ndb.load_data_pre_v4(tbl.ndb)
advtrains.atc.load_data(tbl.atc)
if advtrains.interlocking then
advtrains.interlocking.db.load(tbl.interlocking)
else
MDS_interlocking = tbl.interlocking
end
if advtrains.lines then
advtrains.lines.load(tbl.lines)
else
MDS_lines = tbl.lines
end
--remove wagon_save entries that are not part of a train
local todel=advtrains.merge_tables(advtrains.wagon_save)
for tid, train in pairs(advtrains.trains) do
train.id = tid
for _, wid in ipairs(train.trainparts) do
todel[wid]=nil
end
end
for wid, _ in pairs(todel) do
atwarn("Removing unused wagon", wid, "from wagon_save table.")
advtrains.wagon_save[wid]=nil
end
else
--oh no, its the old one...
advtrains.trains=tbl
--load ATC
advtrains.fpath_atc=minetest.get_worldpath().."/advtrains_atc"
local file, err = io.open(advtrains.fpath_atc, "r")
if not file then
local er=err or "Unknown Error"
atprint("Failed loading advtrains atc save file "..er)
else
local tbl = minetest.deserialize(file:read("*a"))
if type(tbl) == "table" then
advtrains.atc.controllers=tbl.controllers
end
file:close()
end
--load wagon saves
advtrains.fpath_ws=minetest.get_worldpath().."/advtrains_wagon_save"
local file, err = io.open(advtrains.fpath_ws, "r")
if not file then
local er=err or "Unknown Error"
atprint("Failed loading advtrains save file "..er)
else
local tbl = minetest.deserialize(file:read("*a"))
if type(tbl) == "table" then
advtrains.wagon_save=tbl
end
file:close()
end
end
else
minetest.log("error", " Failed to deserialize advtrains save data: Not a table!")
end
-- moved from advtrains.load()
atlatc.load_pre_v4()
-- end of legacy loading code
end
function advtrains.load_version_4()
minetest.log("action", "[advtrains] loading savefiles version 4 (serialize_lib)")
--== load core ==
local at_save = serialize_lib.load_atomic(advtrains.fpath.."_core.ls")
if at_save then
advtrains.trains = at_save.trains
--Save the train id into the train table to avoid having to pass id around
for id, train in pairs(advtrains.trains) do
train.id = id
end
advtrains.wagons = at_save.wagons
advtrains.player_to_train_mapping = at_save.ptmap or {}
advtrains.atc.load_data(at_save.atc)
--remove wagon_save entries that are not part of a train
local todel=advtrains.merge_tables(advtrains.wagon_save)
for tid, train in pairs(advtrains.trains) do
train.id = tid
for _, wid in ipairs(train.trainparts) do
todel[wid]=nil
end
end
for wid, _ in pairs(todel) do
atwarn("Removing unused wagon", wid, "from wagon_save table.")
advtrains.wagon_save[wid]=nil
end
end
--== load ndb
serialize_lib.load_atomic(advtrains.fpath.."_ndb4.ls", advtrains.ndb.load_callback)
--== load interlocking ==
if advtrains.interlocking then
local il_save = serialize_lib.load_atomic(advtrains.fpath.."_interlocking.ls")
if il_save then
advtrains.interlocking.db.load(il_save)
end
end
--== load lines ==
if advtrains.lines then
local ln_save = serialize_lib.load_atomic(advtrains.fpath.."_lines.ls")
if ln_save then
advtrains.lines.load(ln_save)
end
end
--== load luaatc ==
if atlatc then
local la_save = serialize_lib.load_atomic(advtrains.fpath.."_atlatc.ls")
if la_save then
atlatc.load(la_save)
end
end
end
advtrains.save_component = function (tbl, name)
-- Saves each component of the advtrains file separately
--
-- required for now to shrink the advtrains db to overcome lua
-- limitations.
-- Note: as of version 4, only used for the "advtrains_version" file
local datastr = minetest.serialize(tbl)
if not datastr then
minetest.log("error", " Failed to serialize advtrains save data!")
return
end
local path = advtrains.fpath.."_"..name
|
