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	Advtrains mod for minetest.	orwell

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	Commit message (Collapse)	Author	Age
*	Update interlocking manual	orwell96	2019-01-15
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*	Signs (static signals)	orwell96	2018-12-08
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*	Shunt signals (not exactly Ks), along with fixes in other components that ↵	orwell96	2018-12-08
| | | |	those rely on
*	Complete Ks Main signals	orwell96	2018-10-26
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*	Actually allow what manual promises (setting IP on non-assigned signals)	orwell96	2018-10-17
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*	Update manual again	orwell96	2018-10-15
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*	Improve route programming:	orwell96	2018-10-07
| | | | | | |	- Formspec for TCBs instead of unhandy chatcommands - Ability to advance route over the next secction without punching end - Better visualization - Ability to route into dead-end sections
*	Add interlocking guide/manual, silence debug outputs	orwell96	2018-09-14
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*	Interlocking: Create demo signals, signal API and model for TCB configurer node	orwell96	2018-06-19
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*	Create models for Ks signals	orwell96	2018-06-14
| | | |	Degrotate doesn't work for meshes (why?), so all I've done was pretty useless...
*	Add Andrew's Cross	orwell96	2017-04-27
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*	Redo rail models	orwell96	2017-03-12
| | | |	Use multiple textures for slope objects, include mbb's rail textures and make curves and switches look better. Also add cable template.
*	Update manual and include everything in repo	orwell96	2017-03-09
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*	Remove blend1 files cluttering the assets directory	orwell96	2017-03-08
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*	Add ceiling-mounted signal	orwell96	2017-02-28
| | | |	This is the wall signal as ceiling variant. Because the trackdb can only save 4 rotation values, we need a ceiling version of this.
*	add wallmounted light signal	orwell96	2017-02-03
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*	Create new models and textures for japanese train	orwell96	2017-01-24
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*	Update manual	orwell96	2017-01-18
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*	Add detailed steam engine contributed by mbb and Krokoschlange	orwell96	2017-01-17
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*	Add animation for steam engine	orwell96	2017-01-17
| | | |	I needed to completely rewrite the animation because irrlicht couldn't handle the animation NathanS created.
*	Model, animate, texture and integrate new subway wagon	orwell96	2017-01-17
| | | |	engine follows!
*	Download recent contributions and put them into the assets directory	orwell96	2017-01-17
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*	Add fancy passenger wagon	orwell96	2017-01-06
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*	Restructure mod directory	orwell96	2017-01-04

generated by cgit v1.2.3 (git 2.39.1) at 2025-01-03 11:00:45 +0000

--[[
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

advtrains.TRAIN_MAX_WAGONS = 20
-- Limit on the maximum number of wagons that may be in a train

-- ==========================================================================

-- 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},