API documentation: node metadata and inventories

This updates the texture according to the style currently used in Minetest Game.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,20 @@
+---
+name: Bug report
+about: Report a problem within technic
+title: ''
+labels: Bug
+assignees: ''
+
+---
+
+Technic has no main developer and largely depends on
+user-provided Pull Requests. It will take a while until
+even important issues are noticed.
+Please consider proposing a PR directly.
+_______________________________________________
+
+
+**Bug description**
+
+
+**Steps to reproduce this issue**

.github/workflows/check-release.yml

@@ -0,0 +1,11 @@
+on: [push, pull_request]
+name: Check & Release
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: lint
+        uses: Roang-zero1/factorio-mod-luacheck@master
+        with:
+          luacheckrc_url: ""

.luacheckrc

@@ -0,0 +1,40 @@
+unused_args = false
+allow_defined_top = true
+max_line_length = 150
+-- Allow shadowed variables (callbacks in callbacks)
+redefined = false
+
+globals = {
+    "technic", "minetest",
+    "srcstack",
+}
+
+read_globals = {
+    string = {fields = {"split", "trim"}},
+    table = {fields = {"copy", "getn"}},
+
+    "intllib", "VoxelArea",
+    "default", "stairsplus",
+
+    "PseudoRandom", "ItemStack",
+    "mg", "tubelib", "vector",
+
+    "moretrees", "bucket",
+    "unified_inventory", "digilines",
+
+    "pipeworks", "screwdriver",
+    "VoxelManip", "unifieddyes",
+
+    "Settings", "mesecon",
+    "digiline_remote",
+
+    "protector", "isprotect",
+    "homedecor_expect_infinite_stacks",
+    
+    "craftguide", "i3"
+}
+
+-- Loop warning
+files["technic/machines/other/frames.lua"].ignore = { "" }
+-- Long lines
+files["technic_cnc/cnc_api.lua"].ignore = { "" }

LICENSE.txt

@@ -0,0 +1,16 @@
+Minetest Mod: technic
+Copyright (C) 2012-2022  RealBadAngel and contributors
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

README.md

@@ -1,23 +1,55 @@
-Technic
-=======
+# Technic
+
+[![Build status](https://github.com/minetest-mods/technic/workflows/Check%20&%20Release/badge.svg)](https://github.com/minetest-mods/technic/actions)
+[![License](https://img.shields.io/badge/license-LGPLv2.0%2B-purple.svg)](https://www.gnu.org/licenses/old-licenses/lgpl-2.0.en.html)
+
+This Minetest modpack adds machinery and automation procedure content to your
+world. A few notable features:
+
+  * Electric circuits
+  * Automated material processing (ores, wood, ...)
+  * Extended chest functionalities
+
+## Dependencies
+
+  * Minetest 5.0.0 or newer
+  * [Minetest Game](https://github.com/minetest/minetest_game/)
+  * [mesecons](https://github.com/minetest-mods/mesecons) -> signalling events
+  * [pipeworks](https://github.com/mt-mods/pipeworks) -> automation of item transport
+  * [moreores](https://github.com/minetest-mods/moreores/) -> additional ores
+  * [basic_materials](https://github.com/mt-mods/basic_materials) -> basic craft items
+  * Supports [moretrees](https://github.com/mt-mods/moretrees) -> rubber trees
+  * Consult `depends.txt` or `mod.conf` of each mod for further dependency information.
+
+
+## FAQ
+
+The modpack is explained in the **[Manual](manual.md)** included in this repository.
+Machine and tool descriptions can be found on the **[GitHub Wiki](https://github.com/minetest-mods/technic/wiki)**.
+
+1. My technic circuit doesn't work. No power is distributed.
+    * Make sure you have a switching station connected.
+2. My wires do not connect to the machines.
+    * Each machine type requires its own cable type. If you do not have a
+      matching circuit, consider using a "Supply Converter" for simplicity.
+
+For modders: **[Technic Lua API](technic/doc/api.md)**
+
+
+## License
+
+Unless otherwise stated, all components of this modpack are licensed under the
+[LGPLv2 or later](LICENSE.txt). See also the individual mod folders for their
+secondary/alternate licenses, if any.
+
+
+### Credits
+
+Contributors in alphabetical order:
 
-Credits for contributing to the project (in alphabetical order):
   * kpoppel
   * Nekogloop
   * Nore/Ekdohibs
   * ShadowNinja
   * VanessaE
   * And many others...
-
-FAQ
----
-
-1. My technic circuit doesn't work.  No power is distrubuted.
-  * A: Make sure you have a switching station connected.
-
-License
--------
-
-Unless otherwise stated, all components of this modpack are licensed under the
-LGPL, V2 or later.  See also the individual mod folders for their
-secondary/alternate licenses, if any.

concrete/depends.txt

@@ -1,4 +0,0 @@
-default
-basic_materials
-intllib?
-moreblocks?

concrete/init.lua

@@ -16,13 +16,6 @@ for i = 32, 63 do
 			"technic:concrete_post_with_platform")
 end
 
-local steel_ingot
-if minetest.get_modpath("technic_worldgen") then
-	steel_ingot = "technic:carbon_steel_ingot"
-else
-	steel_ingot = "default:steel_ingot"
-end
-
 minetest.register_craft({
 	output = 'technic:concrete_post_platform 6',
 	recipe = {

concrete/locale/ja.txt

@@ -0,0 +1,9 @@
+# technic_concrete japanese translation
+# technic_concreteの日本語への翻訳
+# by damiemk
+
+Rebar = 鉄筋
+Concrete Block = コンクリートのブロック
+Blast-resistant Concrete Block = 耐爆性コンクリートのブロック
+Concrete Post Platform = コンクリートのプラットフォーム
+Concrete Post = コンクリートポスト

extranodes/depends.txt

@@ -1,9 +0,0 @@
-default
-technic_worldgen
-basic_materials
-concrete
-unifieddyes?
-intllib?
-moreblocks?
-steel?
-streetsmod?

extranodes/init.lua

@@ -27,6 +27,12 @@ if minetest.get_modpath("moreblocks") then
 		tiles={"technic_granite.png"},
 	})
 
+	stairsplus:register_all("technic", "granite_bricks", "technic:granite_bricks", {
+		description=S("Granite Bricks"),
+		groups={cracky=1, not_in_creative_inventory=1},
+		tiles={"technic_granite_bricks.png"},
+	})
+
 	stairsplus:register_all("technic", "concrete", "technic:concrete", {
 		description=S("Concrete"),
 		groups={cracky=3, not_in_creative_inventory=1},
@@ -57,36 +63,47 @@ if minetest.get_modpath("moreblocks") then
 		tiles={"technic_stainless_steel_block.png"},
 	})
 
-	function register_technic_stairs_alias(modname, origname, newmod, newname)
-		minetest.register_alias(modname .. ":slab_" .. origname, newmod..":slab_" .. newname)
-		minetest.register_alias(modname .. ":slab_" .. origname .. "_inverted", newmod..":slab_" .. newname .. "_inverted")
-		minetest.register_alias(modname .. ":slab_" .. origname .. "_wall", newmod..":slab_" .. newname .. "_wall")
-		minetest.register_alias(modname .. ":slab_" .. origname .. "_quarter", newmod..":slab_" .. newname .. "_quarter")
-		minetest.register_alias(modname .. ":slab_" .. origname .. "_quarter_inverted", newmod..":slab_" .. newname .. "_quarter_inverted")
-		minetest.register_alias(modname .. ":slab_" .. origname .. "_quarter_wall", newmod..":slab_" .. newname .. "_quarter_wall")
-		minetest.register_alias(modname .. ":slab_" .. origname .. "_three_quarter", newmod..":slab_" .. newname .. "_three_quarter")
-		minetest.register_alias(modname .. ":slab_" .. origname .. "_three_quarter_inverted", newmod..":slab_" .. newname .. "_three_quarter_inverted")
-		minetest.register_alias(modname .. ":slab_" .. origname .. "_three_quarter_wall", newmod..":slab_" .. newname .. "_three_quarter_wall")
-		minetest.register_alias(modname .. ":stair_" .. origname, newmod..":stair_" .. newname)
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_inverted", newmod..":stair_" .. newname .. "_inverted")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_wall", newmod..":stair_" .. newname .. "_wall")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_wall_half", newmod..":stair_" .. newname .. "_wall_half")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_wall_half_inverted", newmod..":stair_" .. newname .. "_wall_half_inverted")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_half", newmod..":stair_" .. newname .. "_half")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_half_inverted", newmod..":stair_" .. newname .. "_half_inverted")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_right_half", newmod..":stair_" .. newname .. "_right_half")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_right_half_inverted", newmod..":stair_" .. newname .. "_right_half_inverted")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_wall_half", newmod..":stair_" .. newname .. "_wall_half")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_wall_half_inverted", newmod..":stair_" .. newname .. "_wall_half_inverted")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_inner", newmod..":stair_" .. newname .. "_inner")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_inner_inverted", newmod..":stair_" .. newname .. "_inner_inverted")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_outer", newmod..":stair_" .. newname .. "_outer")
-		minetest.register_alias(modname .. ":stair_" .. origname .. "_outer_inverted", newmod..":stair_" .. newname .. "_outer_inverted")
-		minetest.register_alias(modname .. ":panel_" .. origname .. "_bottom", newmod..":panel_" .. newname .. "_bottom")
-		minetest.register_alias(modname .. ":panel_" .. origname .. "_top", newmod..":panel_" .. newname .. "_top")
-		minetest.register_alias(modname .. ":panel_" .. origname .. "_vertical", newmod..":panel_" .. newname .. "_vertical")
-		minetest.register_alias(modname .. ":micro_" .. origname .. "_bottom", newmod..":micro_" .. newname .. "_bottom")
-		minetest.register_alias(modname .. ":micro_" .. origname .. "_top", newmod..":micro_" .. newname .. "_top")
+	function register_technic_stairs_alias(origmod, origname, newmod, newname)
+		local func = minetest.register_alias
+		local function remap(kind, suffix)
+			-- Old: stairsplus:slab_concrete_wall
+			-- New:    technic:slab_concrete_wall
+			func(("%s:%s_%s%s"):format(origmod, kind, origname, suffix),
+				("%s:%s_%s%s"):format(newmod, kind, newname, suffix))
+		end
+
+		-- Slabs
+		remap("slab", "")
+		remap("slab", "_inverted")
+		remap("slab", "_wall")
+		remap("slab", "_quarter")
+		remap("slab", "_quarter_inverted")
+		remap("slab", "_quarter_wall")
+		remap("slab", "_three_quarter")
+		remap("slab", "_three_quarter_inverted")
+		remap("slab", "_three_quarter_wall")
+
+		-- Stairs
+		remap("stair", "")
+		remap("stair", "_inverted")
+		remap("stair", "_wall")
+		remap("stair", "_wall_half")
+		remap("stair", "_wall_half_inverted")
+		remap("stair", "_half")
+		remap("stair", "_half_inverted")
+		remap("stair", "_right_half")
+		remap("stair", "_right_half_inverted")
+		remap("stair", "_inner")
+		remap("stair", "_inner_inverted")
+		remap("stair", "_outer")
+		remap("stair", "_outer_inverted")
+
+		-- Other
+		remap("panel", "_bottom")
+		remap("panel", "_top")
+		remap("panel", "_vertical")
+		remap("micro", "_bottom")
+		remap("micro", "_top")
 	end
 
 	register_technic_stairs_alias("stairsplus", "concrete", "technic", "concrete")

extranodes/locale/ja.txt

@@ -0,0 +1,8 @@
+# technic_extranodes japanese translation
+# technic_extranodesの日本語への翻訳
+# by damiemk
+
+Marble = 大理石
+Marble Bricks = 大理石のレンガ
+Granite = 花崗岩
+Concrete = コンクリート

manual.md

@@ -1,354 +1,241 @@
-Minetest technic modpack user manual
-====================================
+# Technic User Manual
 
-The technic modpack extends the Minetest game with many new elements,
-mainly constructable machines and tools.  It is a large modpack, and
-tends to dominate gameplay when it is used.  This manual describes how
-to use the technic modpack, mainly from a player's perspective.
+The technic modpack extends Minetest Game (shipped with Minetest by default)
+with many new elements, mainly constructable machines and tools. This manual
+describes how to use the modpack, mainly from a player's perspective.
 
-The technic modpack depends on some other modpacks:
-
-*   the basic Minetest game
-*   mesecons, which supports the construction of logic systems based on
-    signalling elements
-*   pipeworks, which supports the automation of item transport
-*   moreores, which provides some additional ore types
-*   basic_materials, which provides some basic craft items
-
-This manual doesn't explain how to use these other modpacks, which have
-their own manuals:
+Documentation of the mod dependencies can be found here:
 
 *   [Minetest Game Documentation](https://wiki.minetest.net/Main_Page)
 *   [Mesecons Documentation](http://mesecons.net/items.html)
-*   [Pipeworks Documentation](https://gitlab.com/VanessaE/pipeworks/-/wikis/home)
+*   [Pipeworks Documentation](https://github.com/mt-mods/pipeworks/wiki/)
 *   [Moreores Forum Post](https://forum.minetest.net/viewtopic.php?t=549)
 *   [Basic materials Repository](https://gitlab.com/VanessaE/basic_materials)
 
-Recipes for constructable items in technic are generally not guessable,
-and are also not specifically documented here.  You should use a
-craft guide mod to look up the recipes in-game.  For the best possible
-guidance, use the unified\_inventory mod, with which technic registers
-its specialised recipe types.
+## 1.0 Recipes
 
-substances
-----------
+Recipes for items registered by technic are not specifically documented here.
+Please consult a craft guide mod to look up the recipes in-game.
 
-### ore ###
+**Recommended mod:** [Unified Inventory](https://github.com/minetest-mods/unified_inventory)
 
-The technic mod makes extensive use of not just the default ores but also
-some that are added by mods.  You will need to mine for all the ore types
-in the course of the game.  Each ore type is found at a specific range of
-elevations, and while the ranges mostly overlap, some have non-overlapping
-ranges, so you will ultimately need to mine at more than one elevation
-to find all the ores.  Also, because one of the best elevations to mine
-at is very deep, you will be unable to mine there early in the game.
+## 2.0 Substances
 
-Elevation is measured in meters, relative to a reference plane that
-is not quite sea level.  (The standard sea level is at an elevation
-of about +1.4.)  Positive elevations are above the reference plane and
-negative elevations below.  Because elevations are always described this
-way round, greater numbers when higher, we avoid the word "depth".
+### 2.1 Ores
 
-The ores that matter in technic are coal, iron, copper, tin, zinc,
-chromium, uranium, silver, gold, mithril, mese, and diamond.
+Technic registers a few ores which are needed to craft machines or items.
+Each ore type is found at a specific range of elevations so you will
+ultimately need to mine at more than one elevation to find all the ores.
 
-Coal is part of the basic Minetest game.  It is found from elevation
-+64 downwards, so is available right on the surface at the start of
-the game, but it is far less abundant above elevation 0 than below.
-It is initially used as a fuel, driving important machines in the early
-part of the game.  It becomes less important as a fuel once most of your
-machines are electrically powered, but burning fuel remains a way to
-generate electrical power.  Coal is also used, usually in dust form, as
-an ingredient in alloying recipes, wherever elemental carbon is required.
+Elevation (Y axis) is measured in meters. The reference is usually at sea
+level. Ores can generally be found more commonly by going downwards to -1000m.
 
-Iron is part of the basic Minetest game.  It is found from elevation
-+2 downwards, and its abundance increases in stages as one descends,
-reaching its maximum from elevation -64 downwards.  It is a common metal,
-used frequently as a structural component.  In technic, unlike the basic
-game, iron is used in multiple forms, mainly alloys based on iron and
-including carbon (coal).
+Note ¹: *These ores are provided by Minetest Game. See [Ores](https://wiki.minetest.net/Ores#Ores_overview) for a rough overview*
 
-Copper is part of the basic Minetest game (having migrated there from
-moreores).  It is found from elevation -16 downwards, but is more abundant
-from elevation -64 downwards.  It is a common metal, used either on its
-own for its electrical conductivity, or as the base component of alloys.
+Note ²: *These ores are provided by moreores. TODO: Add reference link*
+
+#### Chromium
+Use: stainless steel
+
+Generated below: -100m, more commonly below -200m
+
+#### Coal ¹
+Use: Fuel, alloy as carbon
+
+Burning coal is a way to generate electrical power. Coal is also used,
+usually in dust form, as an ingredient in alloying recipes, wherever
+elemental carbon is required.
+
+#### Copper ¹
+Copper is a common metal, used either on its own for its electrical
+conductivity, or as the base component of alloys.
 Although common, it is very heavily used, and most of the time it will
 be the material that most limits your activity.
 
-Tin is part of the basic Minetest game (having migrated there from
-moreores).  It is found from elevation +8 downwards, with no
-elevation-dependent variations in abundance beyond that point.
-It is a common metal.  Its main use in pure form is as a component
-of electrical batteries.  Apart from that its main purpose is
-as the secondary ingredient in bronze (the base being copper), but bronze
-is itself little used.  Its abundance is well in excess of its usage,
-so you will usually have a surplus of it.
+#### Diamond ¹
+Use: mainly for cutting machines
 
-Zinc is supplied by technic.  It is found from elevation +2 downwards,
-with no elevation-dependent variations in abundance beyond that point.
-It is a common metal.  Its main use is as the secondary ingredient
-in brass (the base being copper), but brass is itself little used.
-Its abundance is well in excess of its usage, so you will usually have
-a surplus of it.
+Diamond is a precious gemstone. It is used moderately, mainly for reasons
+connected to its extreme hardness.
 
-Chromium is supplied by technic.  It is found from elevation -100
-downwards, with no elevation-dependent variations in abundance beyond
-that point.  It is a moderately common metal.  Its main use is as the
-secondary ingredient in stainless steel (the base being iron).
+#### Gold ¹
+Use: various
 
-Uranium is supplied by technic.  It is found only from elevation -80 down
-to -300; using it therefore requires one to mine above elevation -300 even
-though deeper mining is otherwise more productive.  It is a moderately
-common metal, useful only for reasons related to radioactivity: it forms
-the fuel for nuclear reactors, and is also one of the best radiation
-shielding materials available.  It is not difficult to find enough uranium
-ore to satisfy these uses.  Beware that the ore is slightly radioactive:
-it will slightly harm you if you stand as close as possible to it.
-It is safe when more than a meter away or when mined.
+Generated below: -64m, more commonly below -256m
 
-Silver is supplied by the moreores mod.  It is found from elevation -2
-downwards, with no elevation-dependent variations in abundance beyond
-that point.  It is a semi-precious metal.  It is little used, being most
-notably used in electrical items due to its conductivity, being the best
-conductor of all the pure elements.
+Gold is a precious metal. It is most notably used in electrical items due to
+its combination of good conductivity and corrosion resistance.
 
-Gold is part of the basic Minetest game (having migrated there from
-moreores).  It is found from elevation -64 downwards, but is more
-abundant from elevation -256 downwards.  It is a precious metal.  It is
-little used, being most notably used in electrical items due to its
-combination of good conductivity (third best of all the pure elements)
-and corrosion resistance.
+#### Iron ¹
+Use: multiple, mainly for alloys with carbon (coal).
 
-Mithril is supplied by the moreores mod.  It is found from elevation
--512 downwards, the deepest ceiling of any minable substance, with
-no elevation-dependent variations in abundance beyond that point.
-It is a rare precious metal, and unlike all the other metals described
-here it is entirely fictional, being derived from J. R. R. Tolkien's
+#### Lead
+Use: batteries, HV nuclear reactor layout
+
+Generated below: 16m, more common below -128m
+
+#### Mese ¹
+Use: various
+
+Mese is a precious gemstone, and unlike diamond it is entirely fictional.
+It is used in small quantities, wherever some magic needs to be imparted.
+
+#### Mithril ²
+Use: chests
+
+Generated below: -512m, evenly common
+
+Mithril is a fictional ore, being derived from J. R. R. Tolkien's
 Middle-Earth setting.  It is little used.
 
-Mese is part of the basic Minetest game.  It is found from elevation
--64 downwards.  The ore is more abundant from elevation -256 downwards,
-and from elevation -1024 downwards there are also occasional blocks of
-solid mese (each yielding as much mese as nine blocks of ore).  It is a
-precious gemstone, and unlike diamond it is entirely fictional.  It is
-used in many recipes, though mainly not in large quantities, wherever
-some magical quality needs to be imparted.
+#### Silver ²
+Use: conductors
 
-Diamond is part of the basic Minetest game (having migrated there from
-technic).  It is found from elevation -128 downwards, but is more abundant
-from elevation -256 downwards.  It is a precious gemstone.  It is used
-moderately, mainly for reasons connected to its extreme hardness.
+Generated below: -2m, evenly common
 
-### rock ###
+Silver is a semi-precious metal and is the best conductor of all the pure elements.
 
-In addition to the ores, there are multiple kinds of rock that need to be
-mined in their own right, rather than for minerals.  The rock types that
-matter in technic are standard stone, desert stone, marble, and granite.
+#### Tin ¹
+Use: batteries, bronze
 
-Standard stone is part of the basic Minetest game.  It is extremely
-common.  As in the basic game, when dug it yields cobblestone, which can
-be cooked to turn it back into standard stone.  Cobblestone is used in
-recipes only for some relatively primitive machines.  Standard stone is
-used in a couple of machine recipes.  These rock types gain additional
-significance with technic because the grinder can be used to turn them
-into dirt and sand.  This, especially when combined with an automated
-cobblestone generator, can be an easier way to acquire sand than
-collecting it where it occurs naturally.
+Tin is a common metal but is used rarely. Its abundance is well in excess
+of its usage, so you will usually have a surplus of it.
 
-Desert stone is part of the basic Minetest game.  It is found specifically
-in desert biomes, and only from elevation +2 upwards.  Although it is
-easily accessible, therefore, its quantity is ultimately quite limited.
-It is used in a few recipes.
+#### Uranium
+Use: nuclear reactor fuel
 
-Marble is supplied by technic.  It is found in dense clusters from
-elevation -50 downwards.  It has mainly decorative use, but also appears
-in one machine recipe.
+Depth: -80m until -300m, more commonly between -100m and -200m
 
-Granite is supplied by technic.  It is found in dense clusters from
-elevation -150 downwards.  It is much harder to dig than standard stone,
-so impedes mining when it is encountered.  It has mainly decorative use,
-but also appears in a couple of machine recipes.
+It is a moderately common metal, useful only for reasons related to radioactivity:
+it forms the fuel for nuclear reactors, and is also one of the best radiation
+shielding materials available.
 
-### rubber ###
+Keep a safety distance of a meter to avoid being harmed by radiation.
 
+#### Zinc
+Use: brass
+
+Generated below: 2m, more commonly below -32m
+
+Zinc only has a few uses but is a common metal.
+
+
+### 2.2 Rocks
+
+This section describes the rock types added by technic. Further rock types
+are supported by technic machines. These can be processed using the grinder:
+
+ * Stone (plain)
+ * Cobblestone
+ * Desert Stone
+
+#### Marble
+Depth: -50m, evenly common
+
+Marble is found in dense clusters and has mainly decorative use, but also
+appears in one machine recipe.
+
+#### Granite
+Depth: -150m, evenly common
+
+Granite is found in dense clusters and is much harder to dig than standard
+stone. It has mainly decorative use, but also appears in a couple of
+machine recipes.
+
+#### Sulfur
+Uses: battery box
+
+Sulur is generated around some lava patches (caves).
+
+
+### 2.3 Rubber
 Rubber is a biologically-derived material that has industrial uses due
 to its electrical resistivity and its impermeability.  In technic, it
 is used in a few recipes, and it must be acquired by tapping rubber trees.
 
-If you have the moretrees mod installed, the rubber trees you need
-are those defined by that mod.  If not, technic supplies a copy of the
-moretrees rubber tree.
+Rubber trees are provided by technic if the moretrees mod is not present.
 
-Extracting rubber requires a specific tool, a tree tap.  Using the tree
-tap (by left-clicking) on a rubber tree trunk block extracts a lump of
-raw latex from the trunk.  Each trunk block can be repeatedly tapped for
-latex, at intervals of several minutes; its appearance changes to show
-whether it is currently ripe for tapping.  Each tree has several trunk
-blocks, so several latex lumps can be extracted from a tree in one visit.
+Extract raw latex from rubber using the "Tree Tap" tool. Punch/left-click the
+tool on a rubber tree trunk to extract a lump of raw latex from the trunk.
+Emptied trunks will regenerate at intervals of several minutes, which can be
+observed by its appearance.
 
-Raw latex isn't used directly.  It must be vulcanized to produce finished
-rubber.  This can be performed by alloying the latex with coal dust.
+To obtain rubber from latex, alloy latex with coal dust.
 
-### metal ###
+## 3.0 Metal processing
+Generally, each metal can exist in five forms:
 
-Many of the substances important in technic are metals, and there is
-a common pattern in how metals are handled.  Generally, each metal can
-exist in five forms: ore, lump, dust, ingot, and block.  With a couple of
-tricky exceptions in mods outside technic, metals are only *used* in dust,
-ingot, and block forms.  Metals can be readily converted between these
-three forms, but can't be converted from them back to ore or lump forms.
+ * ore -> stone containing the lump
+ * lump -> draw metal obtained by digging ("nuggets")
+ * dust -> grinder output
+ * ingot -> melted/cooked lump or dust
+ * block -> placeable node
 
-As in the basic Minetest game, a "lump" of metal is acquired directly by
-digging ore, and will then be processed into some other form for use.
-A lump is thus more akin to ore than to refined metal.  (In real life,
-metal ore rarely yields lumps ("nuggets") of pure metal directly.
-More often the desired metal is chemically bound into the rock as an
-oxide or some other compound, and the ore must be chemically processed
-to yield pure metal.)
+Metals can be converted between dust, ingot and block, but can't be converted
+from them back to ore or lump forms.
 
-Not all metals occur directly as ore.  Generally, elemental metals (those
-consisting of a single chemical element) occur as ore, and alloys (those
-consisting of a mixture of multiple elements) do not.  In fact, if the
-fictional mithril is taken to be elemental, this pattern is currently
-followed perfectly.  (It is not clear in the Middle-Earth setting whether
-mithril is elemental or an alloy.)  This might change in the future:
-in real life some alloys do occur as ore, and some elemental metals
-rarely occur naturally outside such alloys.  Metals that do not occur
-as ore also lack the "lump" form.
+### Grinding
+Ores can be processed as follows:
 
-The basic Minetest game offers a single way to refine metals: cook a lump
-in a furnace to produce an ingot.  With technic this refinement method
-still exists, but is rarely used outside the early part of the game,
-because technic offers a more efficient method once some machines have
-been built.  The grinder, available only in electrically-powered forms,
-can grind a metal lump into two piles of metal dust.  Each dust pile
-can then be cooked into an ingot, yielding two ingots from one lump.
-This doubling of material value means that you should only cook a lump
-directly when you have no choice, mainly early in the game when you
-haven't yet built a grinder.
+ * ore -> lump (digging) -> ingot (melting)
+ * ore -> lump (digging) -> 2x dust (grinding) -> 2x ingot (melting)
 
-An ingot can also be ground back to (one pile of) dust.  Thus it is always
-possible to convert metal between ingot and dust forms, at the expense
-of some energy consumption.  Nine ingots of a metal can be crafted into
-a block, which can be used for building.  The block can also be crafted
-back to nine ingots.  Thus it is possible to freely convert metal between
-ingot and block forms, which is convenient to store the metal compactly.
-Every metal has dust, ingot, and block forms.
+At the expense of some energy consumption, the grinder can extract more material
+from the lump, resulting in 2x dust which can be melted to two ingots in total.
 
-Alloying recipes in which a metal is the base ingredient, to produce a
-metal alloy, always come in two forms, using the metal either as dust
-or as an ingot.  If the secondary ingredient is also a metal, it must
-be supplied in the same form as the base ingredient.  The output alloy
-is also returned in the same form.  For example, brass can be produced
-by alloying two copper ingots with one zinc ingot to make three brass
-ingots, or by alloying two piles of copper dust with one pile of zinc
-dust to make three piles of brass dust.  The two ways of alloying produce
-equivalent results.
+### Alloying
+Input: two ingredients of the same form - lump or dust
 
-### iron and its alloys ###
+Output: resulting alloy, as an ingot
 
-Iron forms several important alloys.  In real-life history, iron was the
-second metal to be used as the base component of deliberately-constructed
-alloys (the first was copper), and it was the first metal whose working
-required processes of any metallurgical sophistication.  The game
-mechanics around iron broadly imitate the historical progression of
-processes around it, rather than the less-varied modern processes.
+Example: 2x copper ingots + 1x zinc ingot -> 3x brass ingot (alloying)
 
-The two-component alloying system of iron with carbon is of huge
-importance, both in the game and in real life.  The basic Minetest game
-doesn't distinguish between these pure iron and these alloys at all,
-but technic introduces a distinction based on the carbon content, and
-renames some items of the basic game accordingly.
+Note that grinding before alloying is the preferred method to gain more output.
 
-The iron/carbon spectrum is represented in the game by three metal
-substances: wrought iron, carbon steel, and cast iron.  Wrought iron
-has low carbon content (less than 0.25%), resists shattering, and
-is easily welded, but is relatively soft and susceptible to rusting.
-In real-life history it was used for rails, gates, chains, wire, pipes,
-fasteners, and other purposes.  Cast iron has high carbon content
-(2.1% to 4%), is especially hard, and resists corrosion, but is
-relatively brittle, and difficult to work.  Historically it was used
-to build large structures such as bridges, and for cannons, cookware,
-and engine cylinders.  Carbon steel has medium carbon content (0.25%
-to 2.1%), and intermediate properties: moderately hard and also tough,
-somewhat resistant to corrosion.  In real life it is now used for most
-of the purposes previously satisfied by wrought iron and many of those
-of cast iron, but has historically been especially important for its
-use in swords, armor, skyscrapers, large bridges, and machines.
+#### iron and its alloys
 
-In real-life history, the first form of iron to be refined was
-wrought iron, which is nearly pure iron, having low carbon content.
-It was produced from ore by a low-temperature furnace process (the
-"bloomery") in which the ore/iron remains solid and impurities (slag)
-are progressively removed by hammering ("working", hence "wrought").
-This began in the middle East, around 1800 BCE.
+Historically iron was the first metal whose working required processes of any
+metallurgical sophistication. The mod's mechanics around iron broadly imitate
+the historical progression of processes around it to get more variety.
 
-Historically, the next forms of iron to be refined were those of high
-carbon content.  This was the result of the development of a more
-sophisticated kind of furnace, the blast furnace, capable of reaching
-higher temperatures.  The real advantage of the blast furnace is that it
-melts the metal, allowing it to be cast straight into a shape supplied by
-a mould, rather than having to be gradually beaten into the desired shape.
-A side effect of the blast furnace is that carbon from the furnace's fuel
-is unavoidably incorporated into the metal.  Normally iron is processed
-twice through the blast furnace: once producing "pig iron", which has
-very high carbon content and lots of impurities but lower melting point,
-casting it into rough ingots, then remelting the pig iron and casting it
-into the final moulds.  The result is called "cast iron".  Pig iron was
-first produced in China around 1200 BCE, and cast iron later in the 5th
-century BCE.  Incidentally, the Chinese did not have the bloomery process,
-so this was their first iron refining process, and, unlike the rest of
-the world, their first wrought iron was made from pig iron rather than
-directly from ore.
+Notable alloys:
 
-Carbon steel, with intermediate carbon content, was developed much later,
-in Europe in the 17th century CE.  It required a more sophisticated
-process, because the blast furnace made it extremely difficult to achieve
-a controlled carbon content.  Tweaks of the blast furnace would sometimes
-produce an intermediate carbon content by luck, but the first processes to
-reliably produce steel were based on removing almost all the carbon from
-pig iron and then explicitly mixing a controlled amount of carbon back in.
+ * Wrought iron: <0.25% carbon
+     * Resists shattering but is relatively soft.
+     * Known since: 1800 BC (approx.)
+ * Cast iron: 2.1% to 4% carbon.
+     * Especially hard and rather corrosion-resistant
+     * Known since: 1200 BC (approx.)
+ * Carbon steel: 0.25% to 2.1% carbon.
+     * Intermediate of the two above.
+     * Known since: 1600 AD (approx.)
 
-In the game, the bloomery process is represented by ordinary cooking
-or grinding of an iron lump.  The lump represents unprocessed ore,
-and is identified only as "iron", not specifically as wrought iron.
-This standard refining process produces dust or an ingot which is
-specifically identified as wrought iron.  Thus the standard refining
-process produces the (nearly) pure metal.
+Technic introduces a distinction based on the carbon content, and renames some
+items of the basic game accordingly. Iron and Steel are now distinguished.
 
-Cast iron is trickier.  You might expect from the real-life notes above
-that cooking an iron lump (representing ore) would produce pig iron that
-can then be cooked again to produce cast iron.  This is kind of the case,
-but not exactly, because as already noted cooking an iron lump produces
-wrought iron.  The game doesn't distinguish between low-temperature
-and high-temperature cooking processes: the same furnace is used not
-just to cast all kinds of metal but also to cook food.  So there is no
-distinction between cooking processes to produce distinct wrought iron
-and pig iron.  But repeated cooking *is* available as a game mechanic,
-and is indeed used to produce cast iron: re-cooking a wrought iron ingot
-produces a cast iron ingot.  So pig iron isn't represented in the game as
-a distinct item; instead wrought iron stands in for pig iron in addition
-to its realistic uses as wrought iron.
+Notable references:
 
-Carbon steel is produced by a more regular in-game process: alloying
-wrought iron with coal dust (which is essentially carbon).  This bears
-a fair resemblance to the historical development of carbon steel.
-This alloying recipe is relatively time-consuming for the amount of
-material processed, when compared against other alloying recipes, and
-carbon steel is heavily used, so it is wise to alloy it in advance,
-when you're not waiting for it.
+ * https://en.wikipedia.org/wiki/Iron
+ * https://en.wikipedia.org/wiki/Stainless_steel
+ * ... plus many more.
 
-There are additional recipes that permit all three of these types of iron
-to be converted into each other.  Alloying carbon steel again with coal
-dust produces cast iron, with its higher carbon content.  Cooking carbon
-steel or cast iron produces wrought iron, in an abbreviated form of the
-bloomery process.
+Processes:
 
-There's one more iron alloy in the game: stainless steel.  It is managed
-in a completely regular manner, created by alloying carbon steel with
-chromium.
+ * Iron -> Wrought iron (melting)
+ * Wrought iron -> Cast iron (melting)
+ * Wrought iron + coal dust -> Carbon steel (alloying)
+ * Carbon steel + coal dust -> Cast iron (alloying)
+ * Carbon steel + chromium -> Stainless steel (alloying)
 
-### uranium enrichment ###
+Reversible processes:
+
+ * Cast iron -> Wrought iron (melting)
+ * Carbon steel -> Wrought iron (melting)
+
+Check your preferred crafting guide for more information.
+
+
+### Uranium enrichment
 
 When uranium is to be used to fuel a nuclear reactor, it is not
 sufficient to merely isolate and refine uranium metal.  It is necessary
@@ -523,35 +410,15 @@ a post and adjacent concrete block.
 industrial processes
 --------------------
 
-### alloying ###
+### Alloying
 
-In technic, alloying is a way of combining items to create other items,
-distinct from standard crafting.  Alloying always uses inputs of exactly
-two distinct types, and produces a single output.  Like cooking, which
-takes a single input, it is performed using a powered machine, known
-generically as an "alloy furnace".  An alloy furnace always has two
-input slots, and it doesn't matter which way round the two ingredients
-are placed in the slots.  Many alloying recipes require one or both
-slots to contain a stack of more than one of the ingredient item: the
-quantity required of each ingredient is part of the recipe.
+In Technic, alloying is a way of combining items to create other items,
+distinct from standard crafting. Alloying always uses inputs of exactly
+two distinct types, and produces a single output.
 
-As with the furnaces used for cooking, there are multiple kinds of alloy
-furnace, powered in different ways.  The most-used alloy furnaces are
-electrically powered.  There is also an alloy furnace that is powered
-by directly burning fuel, just like the basic cooking furnace.  Building
-almost any electrical machine, including the electrically-powered alloy
-furnaces, requires a machine casing component, one ingredient of which
-is brass, an alloy.  It is therefore necessary to use the fuel-fired
-alloy furnace in the early part of the game, on the way to building
-electrical machinery.
+Check your preferred crafting guide for more information.
 
-Alloying recipes are mainly concerned with metals.  These recipes
-combine a base metal with some other element, most often another metal,
-to produce a new metal.  This is discussed in the section on metal.
-There are also a few alloying recipes in which the base ingredient is
-non-metallic, such as the recipe for the silicon wafer.
-
-### grinding, extracting, and compressing ###
+### Grinding, extracting, and compressing
 
 Grinding, extracting, and compressing are three distinct, but very
 similar, ways of converting one item into another.  They are all quite
@@ -625,57 +492,17 @@ metal alloys.  This can only be done using the dust form of the alloy.
 It recovers both components of binary metal/metal alloys.  It can't
 recover the carbon from steel or cast iron.
 
-chests
+Chests
 ------
 
-The technic mod replaces the basic Minetest game's single type of
-chest with a range of chests that have different sizes and features.
-The chest types are identified by the materials from which they are made;
-the better chests are made from more exotic materials.  The chest types
-form a linear sequence, each being (with one exception noted below)
-strictly more powerful than the preceding one.  The sequence begins with
-the wooden chest from the basic game, and each later chest type is built
-by upgrading a chest of the preceding type.  The chest types are:
+See [GitHub Wiki / Chests](https://github.com/minetest-mods/technic/wiki/Chests)
 
-1.  wooden chest: 8&times;4 (32) slots
-2.  iron chest: 9&times;5 (45) slots
-3.  copper chest: 12&times;5 (60) slots
-4.  silver chest: 12&times;6 (72) slots
-5.  gold chest: 15&times;6 (90) slots
-6.  mithril chest: 15&times;6 (90) slots
+Features of extended chests:
 
-The iron and later chests have the ability to sort their contents,
-when commanded by a button in their interaction forms.  Item types are
-sorted in the same order used in the unified\_inventory craft guide.
-The copper and later chests also have an auto-sorting facility that can
-be enabled from the interaction form.  An auto-sorting chest automatically
-sorts its contents whenever a player closes the chest.  The contents will
-then usually be in a sorted state when the chest is opened, but may not
-be if pneumatic tubes have operated on the chest while it was closed,
-or if two players have the chest open simultaneously.
+ * Larger storage space
+ * Labelling
+ * Advanced item sorting
 
-The silver and gold chests, but not the mithril chest, have a built-in
-sign-like capability.  They can be given a textual label, which will
-be visible when hovering over the chest.  The gold chest, but again not
-the mithril chest, can be further labelled with a colored patch that is
-visible from a moderate distance.
-
-The mithril chest is currently an exception to the upgrading system.
-It has only as many inventory slots as the preceding (gold) type, and has
-fewer of the features.  It has no feature that other chests don't have:
-it is strictly weaker than the gold chest.  It is planned that in the
-future it will acquire some unique features, but for now the only reason
-to use it is aesthetic.
-
-The size of the largest chests is dictated by the maximum size
-of interaction form that the game engine can successfully display.
-If in the future the engine becomes capable of handling larger forms,
-by scaling them to fit the screen, the sequence of chest sizes will
-likely be revised.
-
-As with the chest of the basic Minetest game, each chest type comes
-in both locked and unlocked flavors.  All of the chests work with the
-pneumatic tubes of the pipeworks mod.
 
 radioactivity
 -------------
@@ -813,115 +640,44 @@ so the positioning of holes in each layer must still be considered.
 Tricky shine paths can also be addressed by just keeping players out of
 the dangerous area.
 
-electrical power
-----------------
+## Electrical power
 
-Most machines in technic are electrically powered.  To operate them it is
-necessary to construct an electrical power network.  The network links
-together power generators and power-consuming machines, connecting them
-using power cables.
+Electrical networks in Technic are defined by a single tier (see below)
+and consist of:
 
-There are three tiers of electrical networking: low voltage (LV),
-medium voltage (MV), and high voltage (HV).  Each network must operate
-at a single voltage, and most electrical items are specific to a single
-voltage.  Generally, the machines of higher tiers are more powerful,
-but consume more energy and are more expensive to build, than machines
-of lower tiers.  It is normal to build networks of all three tiers,
-in ascending order as one progresses through the game, but it is not
-strictly necessary to do this.  Building HV equipment requires some parts
-that can only be manufactured using electrical machines, either LV or MV,
-so it is not possible to build an HV network first, but it is possible
-to skip either LV or MV on the way to HV.
+ * 1x Switching Station (central management unit)
+     * Any further stations are disabled automatically
+ * Electricity producers (PR)
+ * Electricity consumers/receivers (RE)
+ * Accumulators/batteries (BA)
 
-Each voltage has its own cable type, with distinctive insulation.  Cable
-segments connect to each other and to compatible machines automatically.
-Incompatible electrical items don't connect.  All non-cable electrical
-items must be connected via cable: they don't connect directly to each
-other.  Most electrical items can connect to cables in any direction,
-but there are a couple of important exceptions noted below.
+### Tiers
 
-To be useful, an electrical network must connect at least one power
-generator to at least one power-consuming machine.  In addition to these
-items, the network must have a "switching station" in order to operate:
-no energy will flow without one.  Unlike most electrical items, the
-switching station is not voltage-specific: the same item will manage
-a network of any tier.  However, also unlike most electrical items,
-it is picky about the direction in which it is connected to the cable:
-the cable must be directly below the switching station.
+ * LV: Low Voltage. Low material costs but is slower.
+ * MV: Medium Voltage. Higher processing speed.
+ * HV: High Voltage. High material costs but is the fastest.
 
-Hovering over a network's switching station will show the aggregate energy
-supply and demand, which is useful for troubleshooting.  Electrical energy
-is measured in "EU", and power (energy flow) in EU per second (EU/s).
-Energy is shifted around a network instantaneously once per second.
+Tiers can be converted from one to another using the Supply Converter node.
+Its top connects to the input, the bottom to the output network. Configure
+the input power by right-clicking it.
 
-In a simple network with only generators and consumers, if total
-demand exceeds total supply then no energy will flow, the machines
-will do nothing, and the generators' output will be lost.  To handle
-this situation, it is recommended to add a battery box to the network.
-A battery box will store generated energy, and when enough has been
-stored to run the consumers for one second it will deliver it to the
-consumers, letting them run part-time.  It also stores spare energy
-when supply exceeds demand, to let consumers run full-time when their
-demand occasionally peaks above the supply.  More battery boxes can
-be added to cope with larger periods of mismatched supply and demand,
-such as those resulting from using solar generators (which only produce
-energy in the daytime).
+### Machine upgrade slots
 
-When there are electrical networks of multiple tiers, it can be appealing
-to generate energy on one tier and transfer it to another.  The most
-direct way to do this is with the "supply converter", which can be
-directly wired into two networks.  It is another tier-independent item,
-and also particular about the direction of cable connections: it must
-have the cable of one network directly above, and the cable of another
-network directly below.  The supply converter demands 10000 EU/s from
-the network above, and when this network gives it power it supplies 9000
-EU/s to the network below.  Thus it is only 90% efficient, unlike most of
-the electrical system which is 100% efficient in moving energy around.
-To transfer more than 10000 EU/s between networks, connect multiple
-supply converters in parallel.
+Generally, machines of MV and HV tiers have two upgrade slots.
+Only specific items will have any upgrading effect. The occupied slots do
+count, but not the actual stack size.
 
-powered machines
-----------------
+**Type 1: Energy upgrade**
 
-### powered machine tiers ###
+Consists of any battery item. Reduces the machine's power consumption
+regardless the charge of the item.
 
-Each powered machine takes its power in some specific form, being
-either fuel-fired (burning fuel directly) or electrically powered at
-some specific voltage.  There is a general progression through the
-game from using fuel-fired machines to electrical machines, and to
-higher electrical voltages.  The most important kinds of machine come
-in multiple variants that are powered in different ways, so the earlier
-ones can be superseded.  However, some machines are only available for
-a specific power tier, so the tier can't be entirely superseded.
+**Type 2: Tube upgrade**
 
-### powered machine upgrades ###
+Consists of a control logic unit item. Ejects processed items into pneumatic
+tubes for quicker processing.
 
-Some machines have inventory slots that are used to upgrade them in
-some way.  Generally, machines of MV and HV tiers have two upgrade slots,
-and machines of lower tiers (fuel-fired and LV) do not.  Any item can
-be placed in an upgrade slot, but only specific items will have any
-upgrading effect.  It is possible to have multiple upgrades of the same
-type, but this can't be achieved by stacking more than one upgrade item
-in one slot: it is necessary to put the same kind of item in more than one
-upgrade slot.  The ability to upgrade machines is therefore very limited.
-Two kinds of upgrade are currently possible: an energy upgrade and a
-tube upgrade.
-
-An energy upgrade consists of a battery item, the same kind of battery
-that serves as a mobile energy store.  The effect of an energy upgrade
-is to improve in some way the machine's use of electrical energy, most
-often by making it use less energy.  The upgrade effect has no relation
-to energy stored in the battery: the battery's charge level is irrelevant
-and will not be affected.
-
-A tube upgrade consists of a control logic unit item.  The effect of a
-tube upgrade is to make the machine able, or more able, to eject items
-it has finished with into pneumatic tubes.  The machines that can take
-this kind of upgrade are in any case capable of accepting inputs from
-pneumatic tubes.  These upgrades are essential in using powered machines
-as components in larger automated systems.
-
-### tubes with powered machines ###
+### Machines + Tubes (pipeworks)
 
 Generally, powered machines of MV and HV tiers can work with pneumatic
 tubes, and those of lower tiers cannot.  (As an exception, the fuel-fired

modpack.conf

@@ -1 +1,3 @@
 name = technic
+description = technic
+min_minetest_version = 5.0

settingtypes.txt

@@ -0,0 +1,9 @@
+#    Safety feature for the chainsaw tool aimed to prevent cutting structures
+#    built by players.
+#
+#    Trunk nodes generated by mapgen have a rotation of '0' whereas manually
+#    placed trunks usually have another value. However, some mods might generate
+#    trees with rotation != 0, which renders the chainsaw useless on them.
+#
+#    Disabling this feature will sacrifice safety for convenience.
+technic_safe_chainsaw (Chainsaw safety feature) bool true

technic/README.md

@@ -1,21 +1,23 @@
-Technic
-=======
+# Technic (main mod)
 
-License
--------
+
+## License
+
+### Code
 
 Copyright (C) 2012-2014 Maciej Kasatkin (RealBadAngel)
 
 Technic chests code is licensed under the GNU LGPLv2+.
 
-Texture licenses:
+
+### Textures
 
 BlockMen modified by Zefram (CC BY-SA 3.0):
   * technic_chernobylite_block.png
   * technic_corium_flowing_animated.png
   * technic_corium_source_animated.png
 
-celeron55 (Perttu Ahola) modified by Zefram (CC BY-SA 3.0):
+celeron55 (Perttu Ahola) modified by Zefram modified by The4codeblocks (The4spaceconstants elsewhere) (CC BY-SA 3.0):
   * technic_bucket_corium.png
 
 sdzen (Elise Staudter) (CC BY-SA 3.0):
@@ -24,15 +26,29 @@ sdzen (Elise Staudter) (CC BY-SA 3.0):
 leftshift (CC BY-SA 3.0):
   * technic_river_water_can.png
 
+Neuromancer vis Minetest Game (CC BY-SA 3.0)
+ * `technic_*_electric_furnace_*.png` (derived)
+
+[LB Photo Realism Reload](https://www.curseforge.com/minecraft/texture-packs/lb-photo-realism-reload) (CC 0)
+ * `technic_geothermal_*.png` (derived)
+ * `technic_water_mill_*.png` (derived)
+ * `technic_*_alloy_furnace_*.png` (derived)
+ * `technic_*_compressor_*.png` (derived)
+ * `technic_*_grinder_*.png` (derived)
+
 RealBadAngel: (WTFPL)
   * Everything else.
 
-CC BY-SA 3.0: <http://creativecommons.org/licenses/by-sa/3.0/>
 
-Sound licenses:
+### Sounds
 
 veikk0 (Veikko Mäkelä) (CC BY-SA 4.0):
   * technic_hv_nuclear_reactor_siren_danger_loop.ogg
     * Derived from "Nuclear alarm.wav" by Freesound.org user rene___ from <https://freesound.org/people/rene___/sounds/56778/>. Originally licensed under CC0 1.0 <https://creativecommons.org/publicdomain/zero/1.0/>
 
-CC BY-SA 4.0: <https://creativecommons.org/licenses/by-sa/4.0/>
+
+### References
+
+CC BY-SA 3.0: http://creativecommons.org/licenses/by-sa/3.0/
+
+CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/

technic/crafts.lua

@@ -7,6 +7,13 @@ minetest.clear_craft({
 	type = "shapeless",
 	output = "default:bronze_ingot"
 })
+-- Restore recipe for bronze block to ingots
+minetest.register_craft({
+	output = "default:bronze_ingot 9",
+	recipe = {
+		{"default:bronzeblock"}
+	}
+})
 
 -- Accelerator tube
 if pipeworks.enable_accelerator_tube then
@@ -167,7 +174,6 @@ minetest.register_craft({
 	},
 })
 
-
 minetest.register_craft({
 	output = "default:dirt 2",
 	type = "shapeless",
@@ -179,3 +185,25 @@ minetest.register_craft({
 		"group:sand",
 	},
 })
+
+minetest.register_craft({
+	output = "technic:rubber_goo",
+	type = "shapeless",
+	recipe = {
+		"technic:raw_latex",
+		"default:coal_lump",
+		"default:coal_lump",
+		"default:coal_lump",
+		"default:coal_lump",
+		"default:coal_lump",
+		"default:coal_lump",
+		"default:coal_lump",
+		"default:coal_lump",
+	},
+})
+
+minetest.register_craft({
+	output = "technic:rubber",
+	type = "cooking",
+	recipe = "technic:rubber_goo",
+})

technic/depends.txt

@@ -1,14 +0,0 @@
-default
-pipeworks
-technic_worldgen
-basic_materials
-bucket?
-screwdriver?
-mesecons?
-mesecons_mvps?
-digilines?
-digiline_remote?
-intllib?
-unified_inventory?
-vector_extras?
-dye?

technic/doc/api.md

@@ -1,41 +1,208 @@
-This file is fairly incomplete. Help is welcome.
+# technic API
 
-Tiers
------
-The tier is a string, currently `"LV"`, `"MV"` and `"HV"` are supported.
+This file documents the functions within the technic modpack for use in mods.
 
-Network
--------
-The network is the cable with the connected machine nodes. Currently the
-switching station handles the network activity.
+[Switch to plaintext format](https://raw.githubusercontent.com/minetest-mods/technic/master/technic/doc/api.md)
+
+**Undocumented API may change at any time.**
+
+
+## Tiers
+Tier are network types. List of pre-registered tiers:
+
+* `"LV"`, Low Voltage
+* `"MV"`, Medium Voltage
+* `"HV"`, High Voltage
+
+Available functions:
+
+* `technic.register_tier(tier, description)`
+	* Registers a network type (tier)
+	* `tier`: string, short name (ex. `LV`)
+	* `description`: string, long name (ex. `Low Voltage`)
+	* See also `tiers`
+
+
+## Cables
+* `technic.register_cable(tier, size)`
+	* Registers an existing node as cable
+	* `tier`: string
+	* `size`: number, visual size of the wire
+* `technic.get_cable_tier(nodename)`
+	* Retrieves the tier assigned to the provided node name
+	* `nodename`: string, name of the node
+	* Returns the tier (string) or `nil`
+* `technic.is_tier_cable(nodename, tier)`
+	* Tells whether the node `nodename` is the cable of the tier `tier`.
+	* Short version of `technic.get_cable_tier(nodename) == tier`
+* `technic.register_cable_tier(nodename, tier)`
+	* Register user defined cable to list of known tier cables.
+	* `nodename`: string, name of the node
+	* `tier`: string, tier name
+
+
+## Machines
+The machine type indicates the direction of power flow.
+List of pre-registered machine types:
+
+* `technic.receiver = "RE"`: consumes energy. e.g. grinder
+* `technic.producer = "PR"`: provides energy. e.g. solar panel
+* `technic.producer_receiver = "PR_RE"` supply converter
+* `technic.battery  = "BA"`: stores energy. e.g. LV battery box
+
+Available functions:
+
+* `technic.register_base_machine(data)`
+	* Registers a new node and defines the underlying machine behaviour. `data` fields:
+	* `tier`: string, see #Tiers
+	* `typename`: string, equivalent to the processing type registered
+	  by `technic.register_recipe`. Examples: `"cooking"` `"alloy"`
+	* `machine_name`: string, node name
+	* `machine_desc`: string, node description
+	* `demand`: table, EU consumption values for each upgrade level.
+	  Up to three indices. Index 1 == no upgrade. Example: `{3000, 2000, 1000}`.
+	* `upgrade`: (boolean), whether to add upgrade slots
+	* `modname`: (string), mod origin
+	* `tube`: (boolean), whether the machine has Pipeworks connectivity
+	* `can_insert`: (func), see Pipeworks documentation
+		* Accepts all inputs by default, if `tube = 1`
+		* See also: `technic.can_insert_unique_stack`
+	* `insert_object`: (func), see Pipeworks documentation
+		* Accepts all inputs by default, if `tube = 1`
+		* See also: `technic.insert_object_unique_stack`
+	* `connect_sides`: (table), see Lua API documentation. Defaults to all directions but front.
+* `technic.register_machine(tier, nodename, machine_type)`
+	* Register an existing node as machine, bound to the network tier
+	* `tier`: string, see #Tiers
+	* `nodename`: string, node name
+	* `machine_type`: string, following options are possible:
+		* `technic.receiver = "RE"`: Consumes energy
+		* `technic.producer = "PR"`: Provides energy
+		* `technic.battery = "BA"`: Energy storage
+	* See also `Machine types`
+* `technic.handle_machine_upgrades(meta)`
+	* Retrieves the count of `upgrade1` and `upgrade2` items.
+	* Use the returned values to improve the capabilities of a machine.
+	  As a rule of thumb, each upgrade should result in a 10% improvement.
+	* Return values:
+		* `EU_upgrade`: integer, to improve power consumption or capacity
+		* `tube_upgrade`: integer, to speed up pipeworks item actions
+
+### Inventory actions and lists
+
+If a node is registered as a technic machine, the following node inventory
+lists have a defined purpose because stack movement functions depend on them.
+
+* `src`: input slot of any size
+* `dst`: output slot of any size
+* `upgrade1`: optional, 1x1 slot for machine upgrades
+* `upgrade2`: optional, same as `upgrade1`.
+
+These functions protect access to the aforementioned inventory lists:
+
+* `technic.machine_inventory_put(...)`
+	* Helper for `<nodedef>.allow_metadata_inventory_put`
+* `technic.machine_inventory_take(...)`
+	* Helper for `<nodedef>.allow_metadata_inventory_take`
+* `technic.machine_inventory_move(...)`
+	* Helper for `<nodedef>.allow_metadata_inventory_move`
+
+### pipeworks helper functions
+
+* `technic.default_can_insert(pos, node, stack, direction)`
+	* Returns boolean, whether the stack fits.
+* `technic.can_insert_unique_stack(pos, node, stack, direction)`
+	* Is based on `technic.default_can_insert`
+* `technic.insert_object_unique_stack(pos, node, stack, direction)`
+	* Functions for the parameters `can_insert` and `insert_object` to avoid
+	  filling multiple inventory slots with same type of item.
+
+### Recipes
+
+* `technic.register_recipe_type(typename, recipedef)`
+	* Registers a new recipe type used for machine processing
+	* `typename`: string, name of the recipe type
+	* Fields of `recipedef`:
+		* `description`: string, descriptor of the recipe type
+		* `input_size`: (numeric), count of input ItemStacks. default 1
+		* `output_size`: (numeric), count of output ItemStacks. default 1
+* `technic.register_recipe(recipe)`
+	* Registers a individual input/output recipe. Fields of `recipe`:
+	* `input`: table, integer-indexed list of input ItemStacks.
+	* `output`: table/ItemStack, single output or list of output ItemStacks.
+	* `time`: numeric, process time in seconds.
+* `technic.get_recipe(typename, items)`
+	* `typename`: string, see `technic.register_recipe_type`
+	* `items`: table, integer-indexed list of input ItemStacks.
+	* Returns: `recipe` table on success, `nil` otherwise
+
+
+The following functions can be used to register recipes for
+a specific machine type:
+
+* Centrifuge
+	* `technic.register_separating_recipe(recipe)`
+* Compressor
+	* `technic.register_compressor_recipe(recipe)`
+* Furnaces (electric, normal)
+	* `minetest.register_recipe(recipe)`
+* Extractor
+	* `technic.register_extractor_recipe(recipe)`
+* Freezer
+	* `technic.register_freezer_recipe(recipe)`
+* Grinder
+	* `technic.register_grinder_recipe(recipe)`
+
+
+## Tools
+* `technic.register_power_tool(itemname, max_charge)`
+	* Register or configure the maximal charge held by an existing item
+	* `craftitem`: string, item or node name
+	* `max_charge`: number, maximal EU capacity
+
+
+## Helper functions
+Unsorted functions:
 
-Helper functions
-----------------
 * `technic.EU_string(num)`
-	* Converts num to a human-readable string (see pretty_num)
+	* Converts num to a human-readable string (see `pretty_num`)
 	  and adds the `EU` unit
 	* Use this function when showing players energy values
 * `technic.pretty_num(num)`
 	* Converts the number `num` to a human-readable string with SI prefixes
-* `technic.swap_node(pos, nodename)`
-	* Same as `mintest.swap_node` but it only changes the nodename.
-	* It uses `minetest.get_node` before swapping to ensure the new nodename
-	  is not the same as the current one.
-* `technic.get_or_load_node(pos)`
-	* If the mapblock is loaded, it returns the node at pos,
-	  else it loads the chunk and returns `nil`.
+* `technic.config:get(name)`
+	* Some configuration function
+* `technic.tube_inject_item(pos, start_pos, velocity, item)`
+	* Same as `pipeworks.tube_inject_item`
+
+### Energy modifiers
 * `technic.set_RE_wear(itemstack, item_load, max_charge)`
-	* If the `wear_represents` field in the item's nodedef is
-	  `"technic_RE_charge"`, this function does nothing.
+	* Modifies the power tool wear of the given itemstack
+	* `itemstack`: ItemStack to modify
+	* `item_load`: number, used energy in EU
+	* `max_charge`: number, maximal EU capacity of the tool
+	* The itemdef field `wear_represents` must be set to `"technic_RE_charge"`,
+	  otherwise this function will do nothing.
+	* Returns the modified itemstack
 * `technic.refill_RE_charge(itemstack)`
 	* This function fully recharges an RE chargeable item.
 	* If `technic.power_tools[itemstack:get_name()]` is `nil` (or `false`), this
 	  function does nothing, else that value is the maximum charge.
 	* The itemstack metadata is changed to contain the charge.
-* `technic.is_tier_cable(nodename, tier)`
-	* Tells whether the node `nodename` is the cable of the tier `tier`.
-* `technic.get_cable_tier(nodename)`
-	* Returns the tier of the cable `nodename` or `nil`.
+* `technic.get_charge(itemstack)`
+	* Returns the charge and max charge of the given itemstack.
+	* If the itemstack is not an RE chargeable item, both return values will be zero.
+* `technic.set_charge(itemstack, charge)`
+	* Modifies the charge of the given itemstack.
+
+### Node manipulation
+* `technic.get_or_load_node(pos)`
+	* If the mapblock is loaded, it returns the node at pos,
+	  else it loads the chunk and returns `nil`.
+* `technic.swap_node(pos, nodename)`
+	* Same as `mintest.swap_node` but it only changes the nodename.
+	* It uses `minetest.get_node` before swapping to ensure the new nodename
+	  is not the same as the current one.
 * `technic.trace_node_ray(pos, dir, range)`
 	* Returns an iteration function (usable in the for loop) to iterate over the
 	  node positions along the specified ray.
@@ -43,95 +210,111 @@ Helper functions
 * `technic.trace_node_ray_fat(pos, dir, range)`
 	* Like `technic.trace_node_ray` but includes extra positions near the ray.
 	* The node ray functions are used for mining lasers.
-* `technic.config:get(name)`
-	* Some configuration function
-* `technic.tube_inject_item(pos, start_pos, velocity, item)`
-	* Same as `pipeworks.tube_inject_item`
 
-Registration functions
-----------------------
-* `technic.register_power_tool(itemname, max_charge)`
-	* Same as `technic.power_tools[itemname] = max_charge`
-	* This function makes the craftitem `itemname` chargeable.
-* `technic.register_machine(tier, nodename, machine_type)`
-	* Same as `technic.machines[tier][nodename] = machine_type`
-	* Currently this is requisite to make technic recognize your node.
-	* See also `Machine types`
-* `technic.register_tier(tier)`
-	* Same as `technic.machines[tier] = {}`
-	* See also `tiers`
 
-### Specific machines
-* `technic.register_solar_array(data)`
-	* data is a table
-* `technic.can_insert_unique_stack(pos, node, stack, direction)`
-* `technic.insert_object_unique_stack(pos, node, stack, direction)`
-	* Functions for the parameters `can_insert` and `insert_object` to avoid
-	  filling multiple inventory slots with same type of item.
+## Item Definition fields
+Groups:
 
-Used itemdef fields
--------------------
-* groups:
-	* `technic_<ltier> = 1` ltier is a tier in small letters; this group makes
-	  the node connect to the cable(s) of the right tier.
-	* `technic_machine = 1` Currently used for
-* `connect_sides`
-	* In addition to the default use (see lua_api.txt), this tells where the
-	  machine can be connected.
-#
-#
-* `technic_run(pos, node)`
-	* This function is currently used to update the node.
+* `technic_<tier> = 1`
+	* Makes the node connect to the cables of the matching tier name
+	* `<tier>`: name of the tier, in lowercase (ex. `lv`)
+* `technic_machine = 1`
+	* UNRELIABLE. Indicates whether the item or node belongs to technic
+* `connect_sides = {"top", "left", ...}`
+	* Extends the Luanti API. Indicates where the machine can be connected.
+
+Additional definition fields:
+
+* `<itemdef>.wear_represents = "string"`
+	* Specifies how the tool wear level is handled. Available modes:
+		* `"mechanical_wear"`: represents physical damage
+		* `"technic_RE_charge"`: represents electrical charge
+* `<itemdef>.technic_run = function(pos, node) ...`
+	* This callback is used to update the node.
 	  Modders have to manually change the information about supply etc. in the
 	  node metadata.
+	* Technic-registered machines use this callback by default.
+* `<itemdef>.technic_disabled_machine_name = "string"`
+	* Specifies the machine's node name to use when it's not connected connected to a network
+* `<itemdef>.technic_on_disable = function(pos, node) ...`
+	* This callback is run when the machine is no longer connected to a technic-powered network.
+* `<itemdef>.technic_get_charge = function(itemstack) ...`
+	* Optional callback to overwrite the default charge behaviour.
+	* `itemstack`: ItemStack, the tool to analyse
+	* Return values:
+		* `charge`: Electrical charge of the tool
+		* `max_charge`: Upper charge limit
+	* Etc. `local charge, maxcharge = itemdef.technic_get_charge(itemstack)`
+* `<itemdef>.technic_set_charge = function(itemstack, charge) ...`
+	* Optional callback to overwrite the default charge behaviour.
+	* `itemstack`: ItemStack, the tool to update
+	* `charge`: numeric, value between `0` and `max_charge`
 
-Machine types
--------------
-There are currently following types:
-* `technic.receiver = "RE"` e.g. grinder
-* `technic.producer = "PR"` e.g. solar panel
-* `technic.producer_receiver = "PR_RE"` supply converter
-* `technic.battery  = "BA"` e.g. LV batbox
 
-Switching Station
------------------
-The switching station is the center of all power distribution on an electric
-network.
-
-The station collects power from sources (PR), distributes it to sinks (RE),
-and uses the excess/shortfall to charge and discharge batteries (BA).
-
-For now, all supply and demand values are expressed in kW.
-
-It works like this:
- All PR,BA,RE nodes are indexed and tagged with the switching station.
-The tagging is a workaround to allow more stations to be built without allowing
-a cheat with duplicating power.
- All the RE nodes are queried for their current EU demand. Those which are off
-would require no or a small standby EU demand, while those which are on would
-require more.
-If the total demand is less than the available power they are all updated with
-the demand number.
-If any surplus exists from the PR nodes the batteries will be charged evenly
-with this.
-If the total demand requires draw on the batteries they will be discharged
-evenly.
-
-If the total demand is more than the available power all RE nodes will be shut
-down. We have a brown-out situation.
-
-Hence for now all the power distribution logic resides in this single node.
-
-### Node meta usage
+## Node Metadata fields
 Nodes connected to the network will have one or more of these parameters as meta
 data:
-	* `<LV|MV|HV>_EU_supply` : Exists for PR and BA node types.
-	This is the EU value supplied by the node. Output
-	* `<LV|MV|HV>_EU_demand` : Exists for RE and BA node types.
-	This is the EU value the node requires to run. Output
-	* `<LV|MV|HV>_EU_input`  : Exists for RE and BA node types.
-	This is the actual EU value the network can give the node. Input
 
-The reason the LV|MV|HV type is prepended to meta data is because some machine
-could require several supplies to work.
-This way the supplies are separated per network.
+* `<tier>_EU_supply` - direction: output
+	* For nodes registered as `PR` or `BA` tier
+	* This is the EU value supplied by the node.
+* `<tier>_EU_demand` - direction: output
+	* For nodes registered as `RE` or `BA` tier
+	* This is the EU value the node requires to run.
+* `<tier>_EU_input` - direction: input
+	* For nodes registered as `RE` or `BA` tier
+	* This is the actual EU value the network can give the node.
+
+`<tier>` corresponds to the tier name registered using
+`technic.register_tier` (ex. `LV`). It is possible for the machine to depend on
+multiple tiers (or networks).
+
+Furthermore, the following fields are reserved for machines:
+
+* `public`: integer, optional.
+	* Controls the behaviour of the `technic.machine_inventory_*` helper functions.
+	* `0` (default): Inventory lists are protected according to `core.is_protected`.
+	* `1`: Inventory lists are accessible to everyone.
+	  Except for: `upgrade1`, `upgrade2`.
+* `splitstacks`: integer, optional.
+    * Defines the behaviour of technic-specific insertion functions, commonly used
+      for pipeworks compatibility.
+    * `0` (default): entire stacks will be inserted.
+    * `1`: Insert one item (i.e. stack size 1) at a time.
+* `tube_time`: internal counter for outgoing tube items.
+
+
+## Manual: Network basics
+
+The switching station is the center of all power distribution on an electric
+network. This node is used to calculate the power supply of the network and
+to distribute the power across nodes.
+
+The switching station is the center of all electricity distribution. It collects
+power from sources (PR), distributes it to sinks (RE), and uses the
+excess/shortfall to charge and discharge batteries (BA).
+
+As a thumb of rule, "EU" (energy unit) values are expressed in kW.
+
+Network functionality:
+
+1. All PR, BA, RE nodes are indexed and tagged with one switching station.
+   The tagging is a workaround to allow more stations to be built without allowing
+   a cheat with duplicating power.
+2. All the RE nodes are queried for their current EU demand.
+   If the total demand is less than the available power they are all updated
+   with the demand number.
+3. BA nodes are evenly charged from energy surplus.
+4. Excess power draw will discharge batteries evenly.
+5. If the total demand is more than the available power all RE nodes will be shut
+   down. We have a brown-out situation.
+
+## Deprecated functions
+
+Following functions are either no longer used by technic, or are planned to
+be removed soon. Please update mods depending on technic accordingly.
+
+ * `technic.get_RE_item_load`
+    * Scales the tool wear to a certain numeric range
+ * `technic.set_RE_item_load`
+    * Scales a certain numeric range to the tool wear

technic/helpers.lua

@@ -65,15 +65,26 @@ function technic.swap_node(pos, name)
 end
 
 
+--- Returns the meta of an item
+-- Gets overridden when legacy.lua is loaded
+function technic.get_stack_meta(itemstack)
+	return itemstack:get_meta()
+end
+
+--- Same as technic.get_stack_meta for cans
+function technic.get_stack_meta_cans(itemstack)
+	return itemstack:get_meta()
+end
+
+
 --- Fully charge RE chargeable item.
 -- Must be defined early to reference in item definitions.
 function technic.refill_RE_charge(stack)
 	local max_charge = technic.power_tools[stack:get_name()]
 	if not max_charge then return stack end
+	local meta = technic.get_stack_meta(stack)
+	meta:set_int("technic:charge", max_charge)
 	technic.set_RE_wear(stack, max_charge, max_charge)
-	local meta = minetest.deserialize(stack:get_metadata()) or {}
-	meta.charge = max_charge
-	stack:set_metadata(minetest.serialize(meta))
 	return stack
 end
 
@@ -83,7 +94,7 @@ function technic.get_or_load_node(pos)
 	local node = minetest.get_node_or_nil(pos)
 	if node then return node end
 	local vm = VoxelManip()
-	local MinEdge, MaxEdge = vm:read_from_map(pos, pos)
+	local _, _ = vm:read_from_map(pos, pos)
 	return nil
 end
 

technic/init.lua

@@ -1,7 +1,11 @@
--- Minetest 0.4.7 mod: technic
 -- namespace: technic
 -- (c) 2012-2013 by RealBadAngel <mk@realbadangel.pl>
 
+if not minetest.get_translator then
+	error("[technic] Your Minetest version is no longer supported."
+		.. " (version < 5.0.0)")
+end
+
 local load_start = os.clock()
 
 technic = rawget(_G, "technic") or {}
@@ -16,7 +20,17 @@ technic.modpath = modpath
 if rawget(_G, "intllib") then
 	technic.getter = intllib.Getter()
 else
-	technic.getter = function(s,a,...)if a==nil then return s end a={a,...}return s:gsub("(@?)@(%(?)(%d+)(%)?)",function(e,o,n,c)if e==""then return a[tonumber(n)]..(o==""and c or"")else return"@"..o..n..c end end) end
+	-- Intllib copypasta: TODO replace with the client-side translation API
+	technic.getter = function(s,a,...)
+		if a==nil then return s end
+		a={a,...}
+		return s:gsub("(@?)@(%(?)(%d+)(%)?)", function(e,o,n,c)
+			if e==""then
+				return a[tonumber(n)]..(o==""and c or"")
+			end
+			return "@"..o..n..c
+		end)
+	end
 end
 local S = technic.getter
 

technic/items.lua

@@ -134,6 +134,11 @@ minetest.register_node("technic:machine_casing", {
 	sounds = default.node_sound_stone_defaults(),
 })
 
+minetest.register_craftitem("technic:rubber_goo", {
+	description = S("Rubber Goo"),
+	inventory_image = "technic_rubber_goo.png",
+})
+
 for p = 0, 35 do
 	local nici = (p ~= 0 and p ~= 7 and p ~= 35) and 1 or nil
 	local psuffix = p == 7 and "" or p

technic/legacy.lua

@@ -39,3 +39,40 @@ for i = 0, 64 do
 	minetest.register_alias("technic:lv_cable"..i, "technic:lv_cable")
 end
 
+-- Item meta
+
+-- Meta keys that have changed
+technic.legacy_meta_keys = {
+	["charge"] = "technic:charge",
+}
+
+-- Converts legacy itemstack metadata string to itemstack meta and returns the ItemStackMetaRef
+function technic.get_stack_meta(itemstack)
+	local meta = itemstack:get_meta()
+	local legacy_string = meta:get("") -- Get deprecated metadata
+	if legacy_string then
+		local legacy_table = minetest.deserialize(legacy_string)
+		if legacy_table then
+			local table = meta:to_table()
+			for k, v in pairs(legacy_table) do
+				table.fields[technic.legacy_meta_keys[k] or k] = v
+			end
+			meta:from_table(table)
+		end
+		meta:set_string("", "") -- Remove deprecated metadata
+	end
+	return meta
+end
+
+-- Same as technic.get_stack_meta for cans.
+-- (Cans didn't store a serialized table in the legacy metadata string, but just a number.)
+function technic.get_stack_meta_cans(itemstack)
+	local meta = itemstack:get_meta()
+	local legacy_string = meta:get("") -- Get deprecated metadata
+	if legacy_string then
+		meta:set_string("can_level", legacy_string)
+		meta:set_string("", "") -- Remove deprecated metadata
+		return meta
+	end
+	return meta
+end

technic/machines/HV/forcefield.lua

@@ -112,10 +112,13 @@ local function set_forcefield_formspec(meta)
 	else
 		formspec = formspec.."button[0,1;5,1;mesecon_mode_0;"..S("Controlled by Mesecon Signal").."]"
 	end
+	-- TODO: String replacement with %s will stop working with client-side translations
 	if meta:get_int("enabled") == 0 then
-		formspec = formspec.."button[0,1.75;5,1;enable;"..S("%s Disabled"):format(S("%s Forcefield Emitter"):format("HV")).."]"
+		formspec = formspec.."button[0,1.75;5,1;enable;"..
+			S("%s Disabled"):format(S("%s Forcefield Emitter"):format("HV")).."]"
 	else
-		formspec = formspec.."button[0,1.75;5,1;disable;"..S("%s Enabled"):format(S("%s Forcefield Emitter"):format("HV")).."]"
+		formspec = formspec.."button[0,1.75;5,1;disable;"..
+			S("%s Enabled"):format(S("%s Forcefield Emitter"):format("HV")).."]"
 	end
 	meta:set_string("formspec", formspec)
 end

technic/machines/HV/nuclear_reactor.lua

@@ -31,24 +31,26 @@ minetest.register_craft({
 })
 
 local function make_reactor_formspec(meta)
-	local f = "size[8,9]"..
-	"label[0,0;"..S("Nuclear Reactor Rod Compartment").."]"..
-	"list[current_name;src;2,1;3,2;]"..
-	"list[current_player;main;0,5;8,4;]"..
-	"listring[]"..
-	"button[5.5,1.5;2,1;start;Start]"..
-	"checkbox[5.5,2.5;autostart;automatic Start;"..meta:get_string("autostart").."]"
+	local f =
+		"formspec_version[4]"..
+		"size[10.75,10.75]"..
+		"label[0.2,0.4;"..S("Nuclear Reactor Rod Compartment").."]"..
+		"list[current_name;src;1.5,1;3,2;]"..
+		"list[current_player;main;0.5,5.5;8,4;]"..
+		"listring[]"..
+		"button[5.7,1;2,1;start;Start]"..
+		"checkbox[5.7,2.75;autostart;automatic Start;"..meta:get_string("autostart").."]"
 	if not digiline_remote_path then
 		return f
 	end
 	local digiline_enabled = meta:get_string("enable_digiline")
-	f = f.."checkbox[0.5,2.8;enable_digiline;Enable Digiline;"..digiline_enabled.."]"
+	f = f.."checkbox[1.5,3.75;enable_digiline;Enable Digiline channel;"..digiline_enabled.."]"
 	if digiline_enabled ~= "true" then
 		return f
 	end
 	return f..
-		"button_exit[4.6,3.69;2,1;save;Save]"..
-		"field[1,4;4,1;remote_channel;Digiline Remote Channel;${remote_channel}]"
+		"field[2,4.2;4.25,1;remote_channel;;${remote_channel}]" ..
+		"button_exit[6.5,4.2;2,1;save;Save]"
 end
 
 local SS_OFF = 0
@@ -140,8 +142,11 @@ of a lead layer it will be converted to a lead layer.
 --]]
 local function reactor_structure_badness(pos)
 	local vm = VoxelManip()
+
+	-- Blast-resistant Concrete Block layer outer positions
 	local pos1 = vector.subtract(pos, 3)
 	local pos2 = vector.add(pos, 3)
+
 	local MinEdge, MaxEdge = vm:read_from_map(pos1, pos2)
 	local data = vm:get_data()
 	local area = VoxelArea:new({MinEdge=MinEdge, MaxEdge=MaxEdge})
@@ -157,16 +162,19 @@ local function reactor_structure_badness(pos)
 	for z = pos1.z, pos2.z do
 	for y = pos1.y, pos2.y do
 	for x = pos1.x, pos2.x do
+		-- In the entire volume, make sure there is:
 		local cid = data[area:index(x, y, z)]
 		if x == pos1.x or x == pos2.x or
 		   y == pos1.y or y == pos2.y or
 		   z == pos1.z or z == pos2.z then
+			-- r=3 : Blast-resistant Concrete Block shell
 			if cid == c_blast_concrete then
 				blast_layer = blast_layer + 1
 			end
 		elseif x == pos1.x+1 or x == pos2.x-1 or
 		       y == pos1.y+1 or y == pos2.y-1 or
 		       z == pos1.z+1 or z == pos2.z-1 then
+			-- r=2 : Lead Block shell
 			if cid == c_lead then
 				lead_layer = lead_layer + 1
 			elseif cid == c_steel then
@@ -175,6 +183,7 @@ local function reactor_structure_badness(pos)
 		elseif x == pos1.x+2 or x == pos2.x-2 or
 		       y == pos1.y+2 or y == pos2.y-2 or
 		       z == pos1.z+2 or z == pos2.z-2 then
+			-- r=1 : Water cooling
 			if cid == c_water_source or cid == c_water_flowing then
 				water_layer = water_layer + 1
 			end
@@ -184,6 +193,8 @@ local function reactor_structure_badness(pos)
 	end
 
 	if steel_layer >= 96 then
+		-- Legacy: convert stainless steel to lead
+		-- Why don't we accept both without conversion?
 		for z = pos1.z+1, pos2.z-1 do
 		for y = pos1.y+1, pos2.y-1 do
 		for x = pos1.x+1, pos2.x-1 do
@@ -206,6 +217,7 @@ local function reactor_structure_badness(pos)
 	if water_layer > 25 then water_layer = 25 end
 	if lead_layer > 96 then lead_layer = 96 end
 	if blast_layer > 216 then blast_layer = 216 end
+	-- Amount of missing blocks
 	return (25 - water_layer) + (96 - lead_layer) + (216 - blast_layer)
 end
 
@@ -217,24 +229,33 @@ end
 
 
 local function start_reactor(pos, meta)
+	local correct_fuel_count = 6
+	local msg_fuel_missing = "Error: You need to insert " .. correct_fuel_count .. " pieces of Uranium Fuel."
+
 	if minetest.get_node(pos).name ~= "technic:hv_nuclear_reactor_core" then
-		return false
+		return msg_fuel_missing
 	end
 	local inv = meta:get_inventory()
 	if inv:is_empty("src") then
-		return false
+		return msg_fuel_missing
 	end
 	local src_list = inv:get_list("src")
-	local correct_fuel_count = 0
+	local fuel_count = 0
 	for _, src_stack in pairs(src_list) do
 		if src_stack and src_stack:get_name() == fuel_type then
-			correct_fuel_count = correct_fuel_count + 1
+			fuel_count = fuel_count + 1
 		end
 	end
-	-- Check that the reactor is complete and has the correct fuel
-	if correct_fuel_count ~= 6 or reactor_structure_badness(pos) ~= 0 then
-		return false
+	-- Check that the has the correct fuel
+	if fuel_count ~= correct_fuel_count then
+		return msg_fuel_missing
 	end
+
+	-- Check that the reactor is complete
+	if reactor_structure_badness(pos) ~= 0 then
+		return "Error: The power plant seems to be built incorrectly."
+	end
+
 	meta:set_int("burn_time", 1)
 	technic.swap_node(pos, "technic:hv_nuclear_reactor_core_active")
 	meta:set_int("HV_EU_supply", power_supply)
@@ -242,7 +263,8 @@ local function start_reactor(pos, meta)
 		src_stack:take_item()
 		inv:set_stack("src", idx, src_stack)
 	end
-	return true
+
+	return nil
 end
 
 
@@ -281,13 +303,13 @@ local function run(pos, node)
 					"fuel used", 6, true)
 		end
 		if meta:get_string("autostart") == "true" then
-			if start_reactor(pos, meta) then
+			if not start_reactor(pos, meta) then
 				return
 			end
 		end
 		meta:set_int("HV_EU_supply", 0)
 		meta:set_int("burn_time", 0)
-		meta:set_string("infotext", S("%s Idle"):format(reactor_desc))
+		meta:set_string("infotext", S("@1 Idle", reactor_desc))
 		technic.swap_node(pos, "technic:hv_nuclear_reactor_core")
 		meta:set_int("structure_accumulated_badness", 0)
 		siren_clear(pos, meta)
@@ -313,11 +335,11 @@ local nuclear_reactor_receive_fields = function(pos, formname, fields, sender)
 		meta:set_string("remote_channel", fields.remote_channel)
 	end
 	if fields.start then
-		local b = start_reactor(pos, meta)
-		if b then
+		local start_error_msg = start_reactor(pos, meta)
+		if not start_error_msg then
 			minetest.chat_send_player(player_name, "Start successful")
 		else
-			minetest.chat_send_player(player_name, "Error")
+			minetest.chat_send_player(player_name, start_error_msg)
 		end
 	end
 	if fields.autostart then
@@ -385,11 +407,11 @@ local digiline_remote_def = function(pos, channel, msg)
 			melt_down_reactor(pos)
 		end
 	elseif msg.command == "start" then
-		local b = start_reactor(pos, meta)
-		if b then
+		local start_error_msg = start_reactor(pos, meta)
+		if not start_error_msg then
 			digiline_remote.send_to_node(pos, channel, "Start successful", 6, true)
 		else
-			digiline_remote.send_to_node(pos, channel, "Error", 6, true)
+			digiline_remote.send_to_node(pos, channel, start_error_msg, 6, true)
 		end
 	end
 end
@@ -455,7 +477,7 @@ minetest.register_node("technic:hv_nuclear_reactor_core_active", {
 	technic_run = run,
 	technic_on_disable = function(pos, node)
 		local timer = minetest.get_node_timer(pos)
-        	timer:start(1)
+		timer:start(1)
         end,
 	on_timer = function(pos, node)
 		local meta = minetest.get_meta(pos)

technic/machines/HV/quarry.lua

@@ -47,14 +47,19 @@ local function set_quarry_demand(meta)
 	local radius = meta:get_int("size")
 	local diameter = radius*2 + 1
 	local machine_name = S("%s Quarry"):format("HV")
-	if meta:get_int("enabled") == 0 or meta:get_int("purge_on") == 1 then
-		meta:set_string("infotext", S(meta:get_int("purge_on") == 1 and "%s purging cache" or "%s Disabled"):format(machine_name))
+	local do_purge = meta:get_int("purge_on") == 1
+	if meta:get_int("enabled") == 0 or do_purge then
+		local infotext = do_purge and
+			S("%s purging cache") or S("%s Disabled")
+		meta:set_string("infotext", infotext:format(machine_name))
 		meta:set_int("HV_EU_demand", 0)
 	elseif meta:get_int("dug") == diameter*diameter * (quarry_dig_above_nodes+1+quarry_max_depth) then
 		meta:set_string("infotext", S("%s Finished"):format(machine_name))
 		meta:set_int("HV_EU_demand", 0)
 	else
-		meta:set_string("infotext", S(meta:get_int("HV_EU_input") >= quarry_demand and "%s Active" or "%s Unpowered"):format(machine_name))
+		local infotext = meta:get_int("HV_EU_input") >= quarry_demand
+			and S("%s Active") or S("%s Unpowered")
+		meta:set_string("infotext", infotext:format(machine_name))
 		meta:set_int("HV_EU_demand", quarry_demand)
 	end
 end
@@ -105,6 +110,40 @@ local function quarry_handle_purge(pos)
 	end
 end
 
+-- Determines whether the quarry can dig the node at "pos"
+-- "startpos" is located a few nodes above the quarry in South West direction (X-, Z-)
+-- Returns the node to dig (to avoid double minetest.get_node lookup)
+local function quarry_can_dig_node(startpos, pos, quarry_owner)
+	if minetest.is_protected(pos, quarry_owner) then
+		return nil
+	end
+
+	local node = technic.get_or_load_node(pos) or minetest.get_node(pos)
+	local def = minetest.registered_nodes[node.name] or {diggable=false}
+	-- doors mod among other thing does NOT like a nil digger...
+	local fakedigger = pipeworks.create_fake_player({
+		name = quarry_owner
+	})
+	if not def.diggable or (def.can_dig and not def.can_dig(pos, fakedigger)) then
+		return nil
+	end
+
+	-- Find airlike nodes on top of the current node. The entire Y column must be free.
+	for ay = pos.y+1, startpos.y do
+		local checkpos = {x=pos.x, y=ay, z=pos.z}
+		local checknode = technic.get_or_load_node(checkpos) or minetest.get_node(checkpos)
+
+		local cdef = minetest.registered_nodes[checknode.name] or {}
+		local is_kind_of_gas = cdef.buildable_to and cdef.sunlight_propagates and not cdef.walkable
+			and not cdef.diggable and (cdef.drawtype == "airlike" or cdef.drawtype == "glasslike")
+		if not is_kind_of_gas then
+			return nil
+		end
+	end
+
+	return node
+end
+
 local function quarry_run(pos, node)
 	local meta = minetest.get_meta(pos)
 	local inv = meta:get_inventory()
@@ -148,35 +187,11 @@ local function quarry_run(pos, node)
 				vector.new(0, -ry, 0)),
 				vector.multiply(pdir, rp)),
 				vector.multiply(qdir, rq))
-			local can_dig = true
-			if can_dig and minetest.is_protected and minetest.is_protected(digpos, owner) then
-				can_dig = false
-			end
-			local dignode
-			if can_dig then
-				dignode = technic.get_or_load_node(digpos) or minetest.get_node(digpos)
-				local dignodedef = minetest.registered_nodes[dignode.name] or {diggable=false}
-				-- doors mod among other thing does NOT like a nil digger...
-				local fakedigger = pipeworks.create_fake_player({
-					name = owner
-				})
-				if not dignodedef.diggable or (dignodedef.can_dig and not dignodedef.can_dig(digpos, fakedigger)) then
-					can_dig = false
-				end
-			end
 
-			if can_dig then
-				for ay = startpos.y, digpos.y+1, -1 do
-					local checkpos = {x=digpos.x, y=ay, z=digpos.z}
-					local checknode = technic.get_or_load_node(checkpos) or minetest.get_node(checkpos)
-					if checknode.name ~= "air" then
-						can_dig = false
-						break
-					end
-				end
-			end
 			nd = nd + 1
-			if can_dig then
+
+			local dignode = quarry_can_dig_node(startpos, digpos, owner)
+			if dignode then
 				minetest.remove_node(digpos)
 				local drops = minetest.get_node_drops(dignode.name, "")
 				for _, dropped_item in ipairs(drops) do

technic/machines/LV/geothermal.lua

@@ -27,7 +27,7 @@ minetest.register_craftitem("technic:geothermal", {
 local check_node_around = function(pos)
 	local node = minetest.get_node(pos)
 	if node.name == "default:water_source" or node.name == "default:water_flowing" then return 1 end
-	if node.name == "default:lava_source"  or node.name == "default:lava_flowing"  then return 2 end	
+	if node.name == "default:lava_source"  or node.name == "default:lava_flowing"  then return 2 end
 	return 0
 end
 

technic/machines/LV/grinder.lua

@@ -9,5 +9,25 @@ minetest.register_craft({
 	}
 })
 
+if (minetest.get_modpath('everness')) then
+	minetest.register_craft({
+		output = 'technic:lv_grinder',
+		recipe = {
+			{'everness:coral_desert_stone', 'default:diamond',        'everness:coral_desert_stone'},
+			{'everness:coral_desert_stone', 'technic:machine_casing', 'everness:coral_desert_stone'},
+			{'technic:granite',             'technic:lv_cable',       'technic:granite'},
+		}
+	})
+
+	minetest.register_craft({
+		output = 'technic:lv_grinder',
+		recipe = {
+			{'everness:forsaken_desert_stone', 'default:diamond',        'everness:forsaken_desert_stone'},
+			{'everness:forsaken_desert_stone', 'technic:machine_casing', 'everness:forsaken_desert_stone'},
+			{'technic:granite',                'technic:lv_cable',       'technic:granite'},
+		}
+	})
+end
+
 technic.register_grinder({tier="LV", demand={200}, speed=1})
 

technic/machines/LV/init.lua

@@ -22,3 +22,6 @@ dofile(path.."/extractor.lua")
 dofile(path.."/compressor.lua")
 
 dofile(path.."/music_player.lua")
+-- NEW LV LAMPS
+dofile(path.."/led.lua")
+dofile(path.."/lamp.lua")

technic/machines/LV/lamp.lua

@@ -0,0 +1,156 @@
+
+-- LV Lamp
+-- Illuminates a 7x7x3(H) volume below itself with light bright as the sun.
+
+
+local S = technic.getter
+
+local desc = S("@1 Lamp", S("LV"))
+local active_desc = S("@1 Active", desc)
+local unpowered_desc = S("@1 Unpowered", desc)
+local off_desc = S("@1 Off", desc)
+local demand = 50
+
+
+-- Invisible light source node used for illumination
+minetest.register_node("technic:dummy_light_source", {
+	description = S("Dummy light source node"),
+	inventory_image = "technic_dummy_light_source.png",
+	wield_image = "technic_dummy_light_source.png",
+	paramtype = "light",
+	drawtype = "airlike",
+	light_source = 14,
+	sunlight_propagates = true,
+	walkable = false,
+	buildable_to = true,
+	diggable = false,
+	pointable = false,
+	--drop = "",  -- Intentionally allowed to drop itself
+	groups = {not_in_creative_inventory = 1}
+})
+
+
+local function illuminate(pos, active)
+	local pos1 = {x = pos.x - 3, y = pos.y - 1, z = pos.z - 3}
+	local pos2 = {x = pos.x + 3, y = pos.y - 3, z = pos.z + 3}
+
+	local find_node = active and "air" or "technic:dummy_light_source"
+	local set_node = {name = (active and "technic:dummy_light_source" or "air")}
+
+	for _,p in pairs(minetest.find_nodes_in_area(pos1, pos2, find_node)) do
+		minetest.set_node(p, set_node)
+	end
+end
+
+local function lamp_run(pos, node)
+	local meta = minetest.get_meta(pos)
+
+	if meta:get_int("LV_EU_demand") == 0 then
+		return  -- Lamp is turned off
+	end
+
+	local eu_input = meta:get_int("LV_EU_input")
+
+	if node.name == "technic:lv_lamp_active" then
+		if eu_input < demand then
+			technic.swap_node(pos, "technic:lv_lamp")
+			meta:set_string("infotext", unpowered_desc)
+			illuminate(pos, false)
+		else
+			illuminate(pos, true)
+		end
+	elseif node.name == "technic:lv_lamp" then
+		if eu_input >= demand then
+			technic.swap_node(pos, "technic:lv_lamp_active")
+			meta:set_string("infotext", active_desc)
+			illuminate(pos, true)
+		end
+	end
+end
+
+local function lamp_toggle(pos, node, player)
+	if not player or minetest.is_protected(pos, player:get_player_name()) then
+		return
+	end
+	local meta = minetest.get_meta(pos)
+	if meta:get_int("LV_EU_demand") == 0 then
+		meta:set_string("infotext", active_desc)
+		meta:set_int("LV_EU_demand", demand)
+	else
+		illuminate(pos, false)
+		technic.swap_node(pos, "technic:lv_lamp")
+		meta:set_string("infotext", off_desc)
+		meta:set_int("LV_EU_demand", 0)
+	end
+end
+
+local common_fields = {
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {0.5,0.5,0.5,-0.5,-0.2,-0.5}
+	},
+	tiles = {
+		"technic_lv_lamp_top.png",
+		"technic_lv_lamp_bottom.png",
+		"technic_lv_lamp_side.png",
+		"technic_lv_lamp_side.png",
+		"technic_lv_lamp_side.png",
+		"technic_lv_lamp_side.png"
+	},
+	connect_sides = {"front", "back", "left", "right", "top"},
+	can_dig = technic.machine_can_dig,
+	technic_run = lamp_run,
+	on_destruct = illuminate,
+	on_rightclick = lamp_toggle
+}
+
+local ndef
+
+ndef = {
+	description = desc,
+	groups = {cracky = 2, technic_machine = 1, technic_lv = 1},
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", desc)
+		meta:set_int("LV_EU_demand", demand)
+	end
+}
+
+for k, v in pairs(common_fields) do
+	ndef[k] = v
+end
+
+minetest.register_node("technic:lv_lamp", ndef)
+
+
+ndef = {
+	description = active_desc,
+	paramtype = "light",
+	light_source = 14,
+	drop = "technic:lv_lamp",
+	groups = {cracky = 2, technic_machine = 1, technic_lv = 1, not_in_creative_inventory = 1},
+	technic_on_disable = function(pos)
+		illuminate(pos, false)
+		technic.swap_node(pos, "technic:lv_lamp")
+	end,
+}
+
+for k, v in pairs(common_fields) do
+	ndef[k] = v
+end
+
+minetest.register_node("technic:lv_lamp_active", ndef)
+
+
+technic.register_machine("LV", "technic:lv_lamp", technic.receiver)
+technic.register_machine("LV", "technic:lv_lamp_active", technic.receiver)
+
+minetest.register_craft({
+	output = "technic:lv_lamp",
+	recipe = {
+		{"default:glass", "default:glass", "default:glass"},
+		{"technic:lv_led", "technic:lv_led", "technic:lv_led"},
+		{"mesecons_materials:glue", "technic:lv_cable", "mesecons_materials:glue"},
+	}
+})

technic/machines/LV/led.lua

@@ -0,0 +1,96 @@
+-- LED
+-- Intended primarily as a core component for LED lamps.
+
+local S = technic.getter
+
+local desc = S("@1 LED", S("LV"))
+local active_desc = S("@1 Active", desc)
+local unpowered_desc = S("@1 Unpowered", desc)
+local demand = 5
+
+
+local function led_run(pos, node)
+	local meta = minetest.get_meta(pos)
+	local eu_input = meta:get_int("LV_EU_input")
+
+	if eu_input < demand and node.name == "technic:lv_led_active" then
+		technic.swap_node(pos, "technic:lv_led")
+		meta:set_string("infotext", unpowered_desc)
+	elseif eu_input >= demand and node.name == "technic:lv_led" then
+		technic.swap_node(pos, "technic:lv_led_active")
+		meta:set_string("infotext", active_desc)
+	end
+end
+
+local common_fields = {
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {0.5, 0.5, 0.5, -0.5, 0.3, -0.5}
+	},
+	tiles = {
+		"technic_lv_led_top.png",
+		"technic_lv_led.png",
+		"technic_lv_led_side.png",
+		"technic_lv_led_side2.png",
+		"technic_lv_led_side2.png",
+		"technic_lv_led_side2.png",
+	},
+
+	connect_sides = {"front", "back", "left", "right", "top", "bottom"},
+	can_dig = technic.machine_can_dig,
+	technic_run = led_run,
+}
+
+local ndef
+
+ndef = {
+	description = desc,
+	inventory_image = "technic_lv_led_inv.png",
+	sunlight_propagates = true,
+	groups = {cracky = 2, technic_machine = 1, technic_lv = 1},
+
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", desc)
+		meta:set_int("LV_EU_demand", demand)
+	end,
+}
+
+for k, v in pairs(common_fields) do
+	ndef[k] = v
+end
+
+minetest.register_node("technic:lv_led", ndef)
+
+
+ndef = {
+	description = active_desc,
+	paramtype = "light",
+	light_source = 9,
+	drop = "technic:lv_led",
+	groups = {cracky = 2, technic_machine = 1, technic_lv = 1, not_in_creative_inventory = 1},
+	technic_on_disable = function(pos)
+		technic.swap_node(pos, "technic:lv_led")
+	end,
+}
+
+for k, v in pairs(common_fields) do
+	ndef[k] = v
+end
+
+minetest.register_node("technic:lv_led_active", ndef)
+
+
+technic.register_machine("LV", "technic:lv_led", technic.receiver)
+technic.register_machine("LV", "technic:lv_led_active", technic.receiver)
+
+minetest.register_craft({
+	output = "technic:lv_led 2",
+	recipe = {
+		{"", "homedecor:plastic_sheeting", ""},
+		{"homedecor:plastic_sheeting", "technic:doped_silicon_wafer", "homedecor:plastic_sheeting"},
+		{"", "basic_materials:silver_wire", ""},
+	},
+	replacements = { {"basic_materials:silver_wire", "basic_materials:empty_spool"}, },
+})

technic/machines/LV/music_player.lua

@@ -24,7 +24,6 @@ local run = function(pos, node)
 	local meta         = minetest.get_meta(pos)
 	local eu_input     = meta:get_int("LV_EU_input")
 	local machine_name = S("%s Music Player"):format("LV")
-	local machine_node = "technic:music_player"
 	local demand       = 150
 
 	local current_track = meta:get_int("current_track")

technic/machines/LV/solar_panel.lua

@@ -51,7 +51,7 @@ minetest.register_node("technic:solar_panel", {
 		technic_machine=1, technic_lv=1},
 	connect_sides = {"bottom"},
 	sounds = default.node_sound_wood_defaults(),
-    	description = S("Small Solar %s Generator"):format("LV"),
+	description = S("Small Solar %s Generator"):format("LV"),
 	active = false,
 	drawtype = "nodebox",
 	paramtype = "light",

technic/machines/LV/water_mill.lua

@@ -29,8 +29,8 @@ end
 local run = function(pos, node)
 	local meta             = minetest.get_meta(pos)
 	local water_flow       = 0
-	local production_level = 0
-	local eu_supply        = 0
+	local production_level
+	local eu_supply
 	local max_output       = 4 * 45 -- keeping it around 180, little more than previous 150 :)
 
 	local positions = {

technic/machines/MV/hydro_turbine.lua

@@ -30,8 +30,8 @@ end
 local run = function(pos, node)
 	local meta             = minetest.get_meta(pos)
 	local water_flow       = 0
-	local production_level = 0
-	local eu_supply        = 0
+	local production_level
+	local eu_supply
 	local max_output       = 40 * 45 -- Generates 1800EU/s
 
 	local positions = {

technic/machines/MV/lighting.lua

@@ -14,20 +14,7 @@ end
 
 function technic_homedecor_node_is_owned(pos, placer)
         local ownername = false
-        if type(IsPlayerNodeOwner) == "function" then -- node_ownership mod
-                if HasOwner(pos, placer) then
-                        if not IsPlayerNodeOwner(pos, placer:get_player_name()) then
-                                if type(getLastOwner) == "function" then -- ...is an old version
-                                        ownername = getLastOwner(pos)
-                                elseif type(GetNodeOwnerName) == "function" then -- ...is a recent version
-                                        ownername = GetNodeOwnerName(pos)
-                                else
-                                        ownername = S("someone")
-                                end
-                        end
-                end
-
-        elseif type(isprotect) == "function" then -- glomie's protection mod
+        if type(isprotect) == "function" then -- glomie's protection mod
                 if not isprotect(5, pos, placer) then
                         ownername = S("someone")
                 end
@@ -45,7 +32,6 @@ function technic_homedecor_node_is_owned(pos, placer)
         end
 end
 
-local dirs1 = {20, 23, 22, 21}
 local dirs2 = {9,  18,  7, 12}
 
 local technic_homedecor_rotate_and_place = function(itemstack, placer, pointed_thing)
@@ -58,7 +44,6 @@ local technic_homedecor_rotate_and_place = function(itemstack, placer, pointed_t
 			local under = pointed_thing.under
 			local pitch = placer:get_look_pitch()
 			local pname = minetest.get_node(under).name
-			local node = minetest.get_node(above)
 			local fdir = minetest.dir_to_facedir(placer:get_look_dir())
 			local wield_name = itemstack:get_name()
 
@@ -159,7 +144,7 @@ minetest.register_node('technic:homedecor_glowlight_half_yellow_active', {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	walkable = true,
-	light_source = LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	sounds = default.node_sound_wood_defaults(),
 
 	groups = { snappy = 3, not_in_creative_inventory=1},
@@ -240,7 +225,7 @@ minetest.register_node('technic:homedecor_glowlight_quarter_yellow_active', {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	walkable = true,
-	light_source = LIGHT_MAX-1,
+	light_source = minetest.LIGHT_MAX-1,
 	sounds = default.node_sound_wood_defaults(),
 
 	groups = { snappy = 3, not_in_creative_inventory=1},
@@ -322,7 +307,7 @@ minetest.register_node('technic:homedecor_glowlight_half_white_active', {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	walkable = true,
-	light_source = LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	sounds = default.node_sound_wood_defaults(),
 
 	groups = { snappy = 3, not_in_creative_inventory=1},
@@ -403,7 +388,7 @@ minetest.register_node('technic:homedecor_glowlight_quarter_white_active', {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	walkable = true,
-	light_source = LIGHT_MAX-1,
+	light_source = minetest.LIGHT_MAX-1,
 	sounds = default.node_sound_wood_defaults(),
 
 	groups = { snappy = 3, not_in_creative_inventory=1},
@@ -484,7 +469,7 @@ minetest.register_node('technic:homedecor_glowlight_small_cube_yellow_active', {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	walkable = true,
-	light_source = LIGHT_MAX-1,
+	light_source = minetest.LIGHT_MAX-1,
 	sounds = default.node_sound_wood_defaults(),
 
 	groups = { snappy = 3, not_in_creative_inventory=1},
@@ -565,7 +550,7 @@ minetest.register_node('technic:homedecor_glowlight_small_cube_white_active', {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	walkable = true,
-	light_source = LIGHT_MAX-1,
+	light_source = minetest.LIGHT_MAX-1,
 	sounds = default.node_sound_wood_defaults(),
 
 	groups = { snappy = 3, not_in_creative_inventory=1},

technic/machines/MV/power_radiator.lua

@@ -36,7 +36,8 @@ technic.register_inductive_machine = function(name)
 end
 
 -- Appliances:
---  has_supply: pos of supply node if the appliance has a power radiator near with sufficient power for the demand else ""
+--  has_supply: pos of supply node if the appliance has a power radiator near
+--              with sufficient power for the demand else ""
 --  EU_demand: The power demand of the device.
 --  EU_charge: Actual use. set to EU_demand if active==1
 --  active: set to 1 if the device is on
@@ -177,8 +178,6 @@ minetest.register_abm({
 			-- The supply radius
 			local rad = power_radius
 
-			local meta1            = nil
-			local pos1             = {}
 			local used_charge      = 0
 
 			-- Index all nodes within supply range

technic/machines/MV/tool_workshop.lua

@@ -39,7 +39,6 @@ local run = function(pos, node)
 	local inv          = meta:get_inventory()
 	local eu_input     = meta:get_int("MV_EU_input")
 	local machine_name = S("%s Tool Workshop"):format("MV")
-	local machine_node = "technic:tool_workshop"
 
 	-- Setup meta data if it does not exist.
 	if not eu_input then
@@ -71,7 +70,7 @@ local run = function(pos, node)
 		meta:set_int("MV_EU_demand", 0)
 		return
 	end
-	
+
 	if eu_input < workshop_demand[EU_upgrade+1] then
 		meta:set_string("infotext", S("%s Unpowered"):format(machine_name))
 	elseif eu_input >= workshop_demand[EU_upgrade+1] then
@@ -105,7 +104,7 @@ minetest.register_node("technic:tool_workshop", {
 		inv:set_size("src", 1)
 		inv:set_size("upgrade1", 1)
 		inv:set_size("upgrade2", 1)
-	end,	
+	end,
 	can_dig = technic.machine_can_dig,
 	allow_metadata_inventory_put = technic.machine_inventory_put,
 	allow_metadata_inventory_take = technic.machine_inventory_take,

technic/machines/other/anchor.lua

@@ -48,20 +48,23 @@ local function forceload_on(pos, meta)
 end
 
 local function set_display(pos, meta)
+	local ESC = minetest.formspec_escape
 	meta:set_string("infotext", S(meta:get_int("enabled") ~= 0 and "%s Enabled" or "%s Disabled"):format(desc))
 	meta:set_string("formspec",
 		"size[5,3.5]"..
 		"item_image[0,0;1,1;technic:admin_anchor]"..
-		"label[1,0;"..minetest.formspec_escape(desc).."]"..
-		"label[0,1;"..minetest.formspec_escape(S("Owner:").." "..meta:get_string("owner")).."]"..
+		"label[1,0;"..ESC(desc).."]"..
+		"label[0,1;"..ESC(S("Owner:").." "..meta:get_string("owner")).."]"..
 		(meta:get_int("locked") == 0 and
-			"button[3,1;2,1;lock;"..minetest.formspec_escape(S("Unlocked")).."]" or
-			"button[3,1;2,1;unlock;"..minetest.formspec_escape(S("Locked")).."]")..
-		"field[0.25,2.3;1,1;radius;"..minetest.formspec_escape(S("Radius:"))..";"..meta:get_int("radius").."]"..
+			"button[3,1;2,1;lock;"..ESC(S("Unlocked")).."]" or
+			"button[3,1;2,1;unlock;"..ESC(S("Locked")).."]")..
+		"field[0.25,2.3;1,1;radius;"..ESC(S("Radius:"))..";"..meta:get_int("radius").."]"..
 		(meta:get_int("enabled") == 0 and
-			"button[3,2;2,1;enable;"..minetest.formspec_escape(S("Disabled")).."]" or
-			"button[3,2;2,1;disable;"..minetest.formspec_escape(S("Enabled")).."]")..
-		"label[0,3;"..minetest.formspec_escape(S("Keeping %d/%d map blocks loaded"):format(#currently_forceloaded_positions(meta), #compute_forceload_positions(pos, meta))).."]")
+			"button[3,2;2,1;enable;"..ESC(S("Disabled")).."]" or
+			"button[3,2;2,1;disable;"..ESC(S("Enabled")).."]")..
+		"label[0,3;"..ESC(S("Keeping %d/%d map blocks loaded"):format(
+			#currently_forceloaded_positions(meta), #compute_forceload_positions(pos, meta)
+		)).."]")
 end
 
 minetest.register_node("technic:admin_anchor", {
@@ -80,7 +83,8 @@ minetest.register_node("technic:admin_anchor", {
 	end,
 	can_dig = function (pos, player)
 		local meta = minetest.get_meta(pos)
-		return meta:get_int("locked") == 0 or (player and player:is_player() and player:get_player_name() == meta:get_string("owner"))
+		return meta:get_int("locked") == 0 or
+			(player and player:is_player() and player:get_player_name() == meta:get_string("owner"))
 	end,
 	on_destruct = function (pos)
 		local meta = minetest.get_meta(pos)
@@ -99,7 +103,11 @@ minetest.register_node("technic:admin_anchor", {
 			forceload_off(meta)
 			if fields.disable then meta:set_int("enabled", 0) end
 			if fields.enable then meta:set_int("enabled", 1) end
-			if fields.radius and string.find(fields.radius, "^[0-9]+$") and tonumber(fields.radius) < 256 then meta:set_int("radius", fields.radius) end
+			if fields.radius
+					and string.find(fields.radius, "^[0-9]+$")
+					and tonumber(fields.radius) < 256 then
+				meta:set_int("radius", fields.radius)
+			end
 			if meta:get_int("enabled") ~= 0 then
 				forceload_on(pos, meta)
 			end

technic/machines/other/coal_alloy_furnace.lua

@@ -77,14 +77,12 @@ minetest.register_abm({
 	action = function(pos, node, active_object_count, active_object_count_wider)
 		local meta = minetest.get_meta(pos)
 		local inv    = meta:get_inventory()
-		
+
 		if inv:get_size("src") == 1 then -- Old furnace -> convert it
 			inv:set_size("src", 2)
 			inv:set_stack("src", 2, inv:get_stack("src2", 1))
 			inv:set_size("src2", 0)
 		end
-		
-		local recipe = nil
 
 		for i, name in pairs({
 				"fuel_totaltime",

technic/machines/other/constructor.lua

@@ -88,6 +88,7 @@ minetest.register_craft({
 local function make_on(mark, length)
 	return function(pos, node)
 		local meta = minetest.get_meta(pos)
+		local owner = meta:get_string("owner")
 		local inv = meta:get_inventory()
 		local dir = vector.new()
 		if node.param2 == 3 then dir.x = 1 end
@@ -102,6 +103,9 @@ local function make_on(mark, length)
 			minetest.check_for_falling(pos)
 			for i = 1, length do
 				place_pos = vector.add(place_pos, dir)
+				if owner ~= "" and minetest.is_protected(place_pos, owner) then
+					return
+				end
 				local place_node = minetest.get_node(place_pos)
 				deploy_node(inv, "slot"..i, place_pos, place_node, node)
 			end
@@ -156,6 +160,11 @@ local function make_constructor(mark, length)
 			for i = 1, length do
 				inv:set_size("slot"..i, 1)
 			end
+			meta:set_string("owner", "?")
+		end,
+		after_place_node = function(pos, placer)
+			local meta = minetest.get_meta(pos)
+			meta:set_string("owner", (placer and placer:get_player_name() or "?"))
 		end,
 		can_dig = function(pos, player)
 			local meta = minetest.get_meta(pos)

technic/machines/other/frames.lua

@@ -1,7 +1,5 @@
 local S = technic.getter
 
-frames = {}
-
 local infinite_stacks = minetest.settings:get_bool("creative_mode")
 	and minetest.get_modpath("unified_inventory") == nil
 
@@ -90,22 +88,22 @@ local function pos_in_list(l, pos)
 	return false
 end
 
-local function table_empty(table)
-	for _, __ in pairs(table) do
+local function table_empty(what)
+	for _ in pairs(what) do
 		return false
 	end
 	return true
 end
 
-local function add_table(table, toadd)
+local function add_table(what, toadd)
 	local i = 1
 	while true do
-		o = table[i]
+		local o = what[i]
 		if o == toadd then return end
 		if o == nil then break end
 		i = i + 1
 	end
-	table[i] = toadd
+	what[i] = toadd
 end
 
 local function move_nodes_vect(poslist, vect, must_not_move, owner)
@@ -261,8 +259,8 @@ for zp = 0, 1 do
 		sunlight_propagates = true,
 
 		frame_connect_all = function(nodename)
-			l2 = {}
-			l1 = {
+			local l2 = {}
+			local l1 = {
 				{ x = -1, y = 0, z = 0 }, { x = 1, y = 0, z = 0 },
 				{ x = 0, y = -1, z = 0 }, { x = 0, y = 1, z = 0 },
 				{ x = 0, y = 0, z = -1 }, { x = 0, y = 0, z = 1 }
@@ -311,7 +309,7 @@ for zp = 0, 1 do
 			local node = minetest.get_node(pos)
 			if node.name ~= "air" then
 				if is_supported_node(node.name) then
-					obj = minetest.add_entity(pos, "technic:frame_entity")
+					local obj = minetest.add_entity(pos, "technic:frame_entity")
 					obj:get_luaentity():set_node({ name = itemstack:get_name() })
 				end
 			else
@@ -326,6 +324,7 @@ for zp = 0, 1 do
 
 		on_rightclick = function(pos, node, placer, itemstack, pointed_thing)
 			if is_supported_node(itemstack:get_name()) then
+				-- Stripped down version of "core.item_place_node"
 				if minetest.is_protected(pos, placer:get_player_name()) then
 					minetest.log("action", placer:get_player_name()
 						.. " tried to place " .. itemstack:get_name()
@@ -349,7 +348,6 @@ for zp = 0, 1 do
 				end
 
 				-- Run script hook
-				local _, callback
 				for _, callback in ipairs(minetest.registered_on_placenodes) do
 					-- Copy pos and node because callback can modify them
 					local pos_copy = { x = pos.x, y = pos.y, z = pos.z }
@@ -364,7 +362,7 @@ for zp = 0, 1 do
 					itemstack:take_item()
 				end
 
-				obj = minetest.add_entity(pos, "technic:frame_entity")
+				local obj = minetest.add_entity(pos, "technic:frame_entity")
 				obj:get_luaentity():set_node({ name = node.name })
 
 				return itemstack
@@ -400,21 +398,7 @@ minetest.register_entity("technic:frame_entity", {
 		local pos = vector.round(self.object:getpos())
 		frames_pos[pos_to_string(pos)] = node.name
 
-		local stack = ItemStack(node.name)
-		local itemtable = stack:to_table()
-		local itemname = nil
-
-		if itemtable then
-			itemname = stack:to_table().name
-		end
-
-		local item_texture = nil
-		local item_type = ""
-		if minetest.registered_items[itemname] then
-			item_texture = minetest.registered_items[itemname].inventory_image
-			item_type = minetest.registered_items[itemname].type
-		end
-		prop = {
+		local prop = {
 			is_visible = true,
 			textures = { node.name },
 		}
@@ -589,7 +573,7 @@ local function connected(pos, c, adj)
 end
 
 local function get_connected_nodes(pos)
-	c = { pos }
+	local c = { pos }
 	local nodename = minetest.get_node(pos).name
 	if frames_pos[pos_to_string(pos)] then
 		nodename = frames_pos[pos_to_string(pos)]
@@ -695,7 +679,7 @@ local function swap_template(pos, new)
 	local saved_node = meta:get_string("saved_node")
 	meta:set_string("saved_node", "")
 	technic.swap_node(pos, new)
-	local meta = minetest.get_meta(pos)
+	meta = minetest.get_meta(pos)
 	meta:set_string("saved_node", saved_node)
 end
 
@@ -857,7 +841,7 @@ minetest.register_node("technic:template_disabled", {
 	on_destruct = template_on_destruct,
 	after_dig_node = template_drops,
 	on_punch = function(pos, node, puncher)
-	local meta = minetest.get_meta(pos)
+	local _ = minetest.get_meta(pos)
 		swap_template(pos, "technic:template_connector")
 	end
 })

technic/machines/other/injector.lua

@@ -16,7 +16,7 @@ local function inject_items (pos)
 				if stack then
 				local item0=stack:to_table()
 				if item0 then
-					item0["count"] = "1"
+					item0["count"] = 1
 					technic.tube_inject_item(pos, pos, vector.new(0, -1, 0), item0)
 					stack:take_item(1)
 					inv:set_stack("main", i, stack)
@@ -40,7 +40,7 @@ local function inject_items (pos)
 				end
 			end
 		end
-		
+
 end
 
 minetest.register_craft({
@@ -61,6 +61,9 @@ local function set_injector_formspec(meta)
 		(is_stack and
 			"button[0,1;2,1;mode_item;"..S("Stackwise").."]" or
 			"button[0,1;2,1;mode_stack;"..S("Itemwise").."]")..
+		(meta:get_int("public") == 1 and
+			"button[2,1;2,1;mode_private;"..S("Public").."]" or
+			"button[2,1;2,1;mode_public;"..S("Private").."]")..
 		"list[current_name;main;0,2;8,2;]"..
 		"list[current_player;main;0,5;8,4;]"..
 		"listring[]"..
@@ -117,10 +120,15 @@ minetest.register_node("technic:injector", {
 		return inv:is_empty("main")
 	end,
 	on_receive_fields = function(pos, formanme, fields, sender)
+		if minetest.is_protected(pos, sender:get_player_name()) then return end
+
 		local meta = minetest.get_meta(pos)
 		if fields.mode_item then meta:set_string("mode", "single items") end
 		if fields.mode_stack then meta:set_string("mode", "whole stacks") end
 
+		if fields.mode_private then meta:set_int("public", 0) end
+		if fields.mode_public then meta:set_int("public", 1) end
+
 		if fields["fs_helpers_cycling:0:splitstacks"]
 		  or fields["fs_helpers_cycling:1:splitstacks"] then
 			if not pipeworks.may_configure(pos, sender) then return end

technic/machines/register/alloy_recipes.lua

@@ -12,14 +12,14 @@ function technic.register_alloy_recipe(data)
 end
 
 local recipes = {
-	{"technic:copper_dust 3",         "technic:tin_dust",           "technic:bronze_dust 4"},
-	{"default:copper_ingot 3",        "default:tin_ingot",          "default:bronze_ingot 4"},
-	{"technic:wrought_iron_dust",     "technic:coal_dust",          "technic:carbon_steel_dust", 3},
-	{"technic:wrought_iron_ingot",    "technic:coal_dust",          "technic:carbon_steel_ingot", 3},
-	{"technic:carbon_steel_dust",     "technic:coal_dust",          "technic:cast_iron_dust", 3},
-	{"technic:carbon_steel_ingot",    "technic:coal_dust",          "technic:cast_iron_ingot", 3},
-	{"technic:carbon_steel_dust 3",   "technic:chromium_dust",      "technic:stainless_steel_dust 4"},
-	{"technic:carbon_steel_ingot 3",  "technic:chromium_ingot",     "technic:stainless_steel_ingot 4"},
+	{"technic:copper_dust 7",         "technic:tin_dust",           "technic:bronze_dust 8", 12},
+	{"default:copper_ingot 7",        "default:tin_ingot",          "default:bronze_ingot 8", 12},
+	{"technic:wrought_iron_dust 2",   "technic:coal_dust",          "technic:carbon_steel_dust 2", 6},
+	{"technic:wrought_iron_ingot 2",  "technic:coal_dust",          "technic:carbon_steel_ingot 2", 6},
+	{"technic:carbon_steel_dust 2",   "technic:coal_dust",          "technic:cast_iron_dust 2", 6},
+	{"technic:carbon_steel_ingot 2",  "technic:coal_dust",          "technic:cast_iron_ingot 2", 6},
+	{"technic:carbon_steel_dust 4",   "technic:chromium_dust",      "technic:stainless_steel_dust 5", 7.5},
+	{"technic:carbon_steel_ingot 4",  "technic:chromium_ingot",     "technic:stainless_steel_ingot 5", 7.5},
 	{"technic:copper_dust 2",         "technic:zinc_dust",          "technic:brass_dust 3"},
 	{"default:copper_ingot 2",        "technic:zinc_ingot",         "basic_materials:brass_ingot 3"},
 	{"default:sand 2",                "technic:coal_dust 2",        "technic:silicon_wafer"},

technic/machines/register/battery_box.lua

@@ -92,7 +92,7 @@ local dirtab = {
 
 local tube = {
 	insert_object = function(pos, node, stack, direction)
-		print(minetest.pos_to_string(direction), dirtab[direction.x+2+(direction.z+2)*2], node.param2)
+		--print(minetest.pos_to_string(direction), dirtab[direction.x+2+(direction.z+2)*2], node.param2)
 		if direction.y == 1
 			or (direction.y == 0 and dirtab[direction.x+2+(direction.z+2)*2] == node.param2) then
 			return stack
@@ -106,7 +106,7 @@ local tube = {
 		end
 	end,
 	can_insert = function(pos, node, stack, direction)
-		print(minetest.pos_to_string(direction), dirtab[direction.x+2+(direction.z+2)*2], node.param2)
+		--print(minetest.pos_to_string(direction), dirtab[direction.x+2+(direction.z+2)*2], node.param2)
 		if direction.y == 1
 			or (direction.y == 0 and dirtab[direction.x+2+(direction.z+2)*2] == node.param2) then
 			return false
@@ -192,10 +192,10 @@ function technic.register_battery_box(data)
 	end
 
 	local run = function(pos, node)
-		local below = minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z})
-		local meta           = minetest.get_meta(pos)
+		local meta = minetest.get_meta(pos)
+		local network_id = tonumber(meta:get_string(tier.."_network"))
 
-		if not technic.is_tier_cable(below.name, tier) then
+		if not technic.networks[network_id] then
 			meta:set_string("infotext", S("%s Battery Box Has No Network"):format(tier))
 			return
 		end
@@ -304,15 +304,14 @@ function technic.register_battery_box(data)
 			drop = "technic:"..ltier.."_battery_box0",
 			on_construct = function(pos)
 				local meta = minetest.get_meta(pos)
-				local EU_upgrade, tube_upgrade = 0, 0
+				local EU_upgrade, _ = 0
 				if data.upgrade then
-					EU_upgrade, tube_upgrade = technic.handle_machine_upgrades(meta)
+					EU_upgrade, _ = technic.handle_machine_upgrades(meta)
 				end
 				local max_charge = data.max_charge * (1 + EU_upgrade / 10)
 				local charge = meta:get_int("internal_EU_charge")
 				local cpercent = math.floor(charge / max_charge * 100)
 				local inv = meta:get_inventory()
-				local node = minetest.get_node(pos)
 				meta:set_string("infotext", S("%s Battery Box"):format(tier))
 				meta:set_string("formspec", formspec..add_on_off_buttons(meta, ltier, cpercent))
 				meta:set_string("channel", ltier.."_battery_box"..minetest.pos_to_string(pos))
@@ -335,7 +334,6 @@ function technic.register_battery_box(data)
 			after_dig_node = technic.machine_after_dig_node,
 			on_receive_fields = function(pos, formname, fields, sender)
 				local meta = minetest.get_meta(pos)
-				local nodename = minetest.get_node(pos).name
 				if fields.edit_channel then
 					minetest.show_formspec(sender:get_player_name(),
 						"technic:battery_box_edit_channel"..minetest.pos_to_string(pos),
@@ -344,12 +342,12 @@ function technic.register_battery_box(data)
 				  or   fields["fs_helpers_cycling:0:split_dst_stacks"]
 				  or   fields["fs_helpers_cycling:1:split_src_stacks"]
 				  or   fields["fs_helpers_cycling:1:split_dst_stacks"] then
-					local meta = minetest.get_meta(pos)
+					meta = minetest.get_meta(pos)
 					if not pipeworks.may_configure(pos, sender) then return end
 					fs_helpers.on_receive_fields(pos, fields)
-					local EU_upgrade, tube_upgrade = 0, 0
+					local EU_upgrade, _ = 0
 					if data.upgrade then
-						EU_upgrade, tube_upgrade = technic.handle_machine_upgrades(meta)
+						EU_upgrade, _ = technic.handle_machine_upgrades(meta)
 					end
 					local max_charge = data.max_charge * (1 + EU_upgrade / 10)
 					local charge = meta:get_int("internal_EU_charge")
@@ -411,6 +409,25 @@ minetest.register_on_player_receive_fields(
 	end
 )
 
+function technic.get_charge(itemstack)
+	-- check if is chargable
+	local tool_name = itemstack:get_name()
+	if not technic.power_tools[tool_name] then
+		return 0, 0
+	end
+	local item_meta = technic.get_stack_meta(itemstack)
+	return item_meta:get_int("technic:charge"), technic.power_tools[tool_name]
+end
+
+function technic.set_charge(itemstack, charge)
+	local tool_name = itemstack:get_name()
+	if technic.power_tools[tool_name] then
+		technic.set_RE_wear(itemstack, charge, technic.power_tools[tool_name])
+	end
+	local item_meta = technic.get_stack_meta(itemstack)
+	item_meta:set_int("technic:charge", charge)
+end
+
 function technic.charge_tools(meta, batt_charge, charge_step)
 	local inv = meta:get_inventory()
 	if inv:is_empty("src") then
@@ -418,18 +435,18 @@ function technic.charge_tools(meta, batt_charge, charge_step)
 	end
 	local src_stack = inv:get_stack("src", 1)
 
-	local tool_name = src_stack:get_name()
-	if not technic.power_tools[tool_name] then
+	-- get callbacks
+	local src_def = src_stack:get_definition()
+	local technic_get_charge = src_def.technic_get_charge or technic.get_charge
+	local technic_set_charge = src_def.technic_set_charge or technic.set_charge
+
+	-- get tool charge
+	local tool_charge, item_max_charge = technic_get_charge(src_stack)
+	if item_max_charge==0 then
 		return batt_charge, false
 	end
-	-- Set meta data for the tool if it didn't do it itself
-	local src_meta = minetest.deserialize(src_stack:get_metadata()) or {}
-	if not src_meta.charge then
-		src_meta.charge = 0
-	end
+
 	-- Do the charging
-	local item_max_charge = technic.power_tools[tool_name]
-	local tool_charge     = src_meta.charge
 	if tool_charge >= item_max_charge then
 		return batt_charge, true
 	elseif batt_charge <= 0 then
@@ -439,9 +456,7 @@ function technic.charge_tools(meta, batt_charge, charge_step)
 	charge_step = math.min(charge_step, item_max_charge - tool_charge)
 	tool_charge = tool_charge + charge_step
 	batt_charge = batt_charge - charge_step
-	technic.set_RE_wear(src_stack, tool_charge, item_max_charge)
-	src_meta.charge = tool_charge
-	src_stack:set_metadata(minetest.serialize(src_meta))
+	technic_set_charge(src_stack, tool_charge)
 	inv:set_stack("src", 1, src_stack)
 	return batt_charge, (tool_charge == item_max_charge)
 end
@@ -452,21 +467,20 @@ function technic.discharge_tools(meta, batt_charge, charge_step, max_charge)
 	if inv:is_empty("dst") then
 		return batt_charge, false
 	end
-	local srcstack = inv:get_stack("dst", 1)
-	local toolname = srcstack:get_name()
-	if technic.power_tools[toolname] == nil then
+	local src_stack = inv:get_stack("dst", 1)
+
+	-- get callbacks
+	local src_def = src_stack:get_definition()
+	local technic_get_charge = src_def.technic_get_charge or technic.get_charge
+	local technic_set_charge = src_def.technic_set_charge or technic.set_charge
+
+	-- get tool charge
+	local tool_charge, item_max_charge = technic_get_charge(src_stack)
+	if item_max_charge==0 then
 		return batt_charge, false
 	end
-	-- Set meta data for the tool if it didn't do it itself :-(
-	local src_meta = minetest.deserialize(srcstack:get_metadata())
-	src_meta = src_meta or {}
-	if not src_meta.charge then
-		src_meta.charge = 0
-	end
 
 	-- Do the discharging
-	local item_max_charge = technic.power_tools[toolname]
-	local tool_charge     = src_meta.charge
 	if tool_charge <= 0 then
 		return batt_charge, true
 	elseif batt_charge >= max_charge then
@@ -476,10 +490,8 @@ function technic.discharge_tools(meta, batt_charge, charge_step, max_charge)
 	charge_step = math.min(charge_step, tool_charge)
 	tool_charge = tool_charge - charge_step
 	batt_charge = batt_charge + charge_step
-	technic.set_RE_wear(srcstack, tool_charge, item_max_charge)
-	src_meta.charge = tool_charge
-	srcstack:set_metadata(minetest.serialize(src_meta))
-	inv:set_stack("dst", 1, srcstack)
+	technic_set_charge(src_stack, tool_charge)
+	inv:set_stack("dst", 1, src_stack)
 	return batt_charge, (tool_charge == 0)
 end
 

technic/machines/register/cables.lua

@@ -11,6 +11,13 @@ function technic.get_cable_tier(name)
 	return cable_tier[name]
 end
 
+function technic.register_cable_tier(name, tier)
+	assert(technic.machines[tier], "Tier does not exist")
+	assert(type(name) == "string", "Invalid node name")
+
+	cable_tier[name] = tier
+end
+
 local function check_connections(pos)
 	-- Build a table of all machines
 	local machines = {}
@@ -36,84 +43,106 @@ local function check_connections(pos)
 	return connections
 end
 
-local function clear_networks(pos)
+local clear_networks
+
+local function clear_network(network_id)
+	if not network_id then
+		return
+	end
+
+	for _,v in pairs(technic.networks[network_id].all_nodes) do
+		local pos1 = minetest.hash_node_position(v)
+		technic.cables[pos1] = nil
+	end
+	local network_bckup = technic.networks[network_id]
+	technic.networks[network_id] = nil
+
+	for _,n_pos in pairs(network_bckup.PR_nodes) do
+		clear_networks(n_pos)
+	end
+	for _,n_pos in pairs(network_bckup.RE_nodes) do
+		clear_networks(n_pos)
+	end
+	for _,n_pos in pairs(network_bckup.BA_nodes) do
+		clear_networks(n_pos)
+	end
+end
+
+clear_networks = function(pos)
 	local node = minetest.get_node(pos)
 	local meta = minetest.get_meta(pos)
 	local placed = node.name ~= "air"
 	local positions = check_connections(pos)
+
 	if #positions < 1 then return end
-	local dead_end = #positions == 1
-	for _,connected_pos in pairs(positions) do
-		local net = technic.cables[minetest.hash_node_position(connected_pos)]
-		if net and technic.networks[net] then
-			if dead_end and placed then
-				-- Dead end placed, add it to the network
-				-- Get the network
-				local network_id = technic.cables[minetest.hash_node_position(positions[1])]
-				if not network_id then
-					-- We're evidently not on a network, nothing to add ourselves to
-					return
-				end
-				local sw_pos = minetest.get_position_from_hash(network_id)
-				sw_pos.y = sw_pos.y + 1
-				local network = technic.networks[network_id]
-				local tier = network.tier
 
-				-- Actually add it to the (cached) network
-				-- This is similar to check_node_subp
+	if #positions == 1 then
+		if placed then
+			-- Dead end placed, add it to the network
+			-- Get the network
+			local network_id = technic.cables[minetest.hash_node_position(positions[1])]
+			if not network_id then
+				-- We're evidently not on a network, nothing to add ourselves to
+				return
+			end
+			local network = technic.networks[network_id]
+			local tier = network.tier
+
+			-- Actually add it to the (cached) network
+			-- !! IMPORTANT: ../switching_station.lua -> check_node_subp() must be kept in sync
+			if technic.is_tier_cable(node.name, tier) then
 				technic.cables[minetest.hash_node_position(pos)] = network_id
-				pos.visited = 1
-				if technic.is_tier_cable(name, tier) then
-					table.insert(network.all_nodes,pos)
-				elseif technic.machines[tier][node.name] then
-					meta:set_string(tier.."_network",minetest.pos_to_string(sw_pos))
-					if     technic.machines[tier][node.name] == technic.producer then
-						table.insert(network.PR_nodes,pos)
-					elseif technic.machines[tier][node.name] == technic.receiver then
-						table.insert(network.RE_nodes,pos)
-					elseif technic.machines[tier][node.name] == technic.producer_receiver then
-						table.insert(network.PR_nodes,pos)
-						table.insert(network.RE_nodes,pos)
-					elseif technic.machines[tier][node.name] == "SPECIAL" and
-							(pos.x ~= sw_pos.x or pos.y ~= sw_pos.y or pos.z ~= sw_pos.z) and
-							from_below then
-						table.insert(network.SP_nodes,pos)
-					elseif technic.machines[tier][node.name] == technic.battery then
-						table.insert(network.BA_nodes,pos)
-					end
+				table.insert(network.all_nodes,pos)
+			elseif technic.machines[tier][node.name] then
+				-- Found a machine
+				local eu_type = technic.machines[tier][node.name]
+				meta:set_string(tier.."_network", string.format("%.20g", network_id))
+				meta:set_int(tier.."_EU_timeout", 2)
+				if     eu_type == technic.producer then
+					table.insert(network.PR_nodes, pos)
+				elseif eu_type == technic.receiver then
+					table.insert(network.RE_nodes, pos)
+				elseif eu_type == technic.producer_receiver then
+					table.insert(network.PR_nodes, pos)
+					table.insert(network.RE_nodes, pos)
+				elseif eu_type == technic.battery then
+					table.insert(network.BA_nodes, pos)
 				end
-			elseif dead_end and not placed then
-				-- Dead end removed, remove it from the network
-				-- Get the network
-				local network_id = technic.cables[minetest.hash_node_position(positions[1])]
-				if not network_id then
-					-- We're evidently not on a network, nothing to add ourselves to
-					return
-				end
-				local network = technic.networks[network_id]
+				-- Note: SPECIAL (i.e. switching station) is not traversed!
+			end
+		else
+			-- Dead end removed, remove it from the network
+			-- Get the network
+			local network_id = technic.cables[minetest.hash_node_position(positions[1])]
+			if not network_id then
+				-- We're evidently not on a network, nothing to add ourselves to
+				return
+			end
+			local network = technic.networks[network_id]
 
-				-- Search for and remove machine
-				technic.cables[minetest.hash_node_position(pos)] = nil
-				for tblname,table in pairs(network) do
-					if tblname ~= "tier" then
-						for machinenum,machine in pairs(table) do
-							if machine.x == pos.x
-							and machine.y == pos.y
-							and machine.z == pos.z then
-								table[machinenum] = nil
-							end
+			-- Search for and remove machine
+			technic.cables[minetest.hash_node_position(pos)] = nil
+			for tblname,table in pairs(network) do
+				if tblname ~= "tier" then
+					for machinenum,machine in pairs(table) do
+						if machine.x == pos.x
+						and machine.y == pos.y
+						and machine.z == pos.z then
+							table[machinenum] = nil
 						end
 					end
 				end
-			else
-				-- Not a dead end, so the whole network needs to be recalculated
-				for _,v in pairs(technic.networks[net].all_nodes) do
-					local pos1 = minetest.hash_node_position(v)
-					technic.cables[pos1] = nil
-				end
-				technic.networks[net] = nil
 			end
 		end
+		return
+	end
+
+	clear_network(technic.cables[minetest.hash_node_position(pos)])
+
+	for _,connected_pos in pairs(positions) do
+		local network_id = technic.cables[minetest.hash_node_position(connected_pos)]
+		-- Not a dead end, so the whole network needs to be recalculated
+		clear_network(network_id)
 	end
 end
 
@@ -163,7 +192,7 @@ function technic.register_cable(tier, size)
 		connects_to = {"group:technic_"..ltier.."_cable",
 			"group:technic_"..ltier, "group:technic_all_tiers"},
 		on_construct = clear_networks,
-		on_destruct = clear_networks,
+		after_destruct = clear_networks,
 	})
 
 	local xyz = {
@@ -203,7 +232,7 @@ function technic.register_cable(tier, size)
 			connects_to = {"group:technic_"..ltier.."_cable",
 				"group:technic_"..ltier, "group:technic_all_tiers"},
 			on_construct = clear_networks,
-			on_destruct = clear_networks,
+			after_destruct = clear_networks,
 		}
 		def.node_box.fixed = {
 			{-size, -size, -size, size, size, size},

technic/machines/register/centrifuge_recipes.lua

@@ -11,8 +11,8 @@ function technic.register_separating_recipe(data)
 end
 
 local recipes = {
-	{ "technic:bronze_dust 4",             "technic:copper_dust 3",       "technic:tin_dust"      },
-	{ "technic:stainless_steel_dust 4",    "technic:wrought_iron_dust 3", "technic:chromium_dust" },
+	{ "technic:bronze_dust 8",             "technic:copper_dust 7",       "technic:tin_dust"      },
+	{ "technic:stainless_steel_dust 5",    "technic:wrought_iron_dust 4", "technic:chromium_dust" },
 	{ "technic:brass_dust 3",              "technic:copper_dust 2",       "technic:zinc_dust"     },
 	{ "technic:chernobylite_dust",         "default:sand",                "technic:uranium3_dust" },
 	{ "default:dirt 4",                    "default:sand",                "default:gravel",       "default:clay_lump 2"     },

technic/machines/register/common.lua

@@ -65,7 +65,7 @@ function technic.send_items(pos, x_velocity, z_velocity, output_name)
 	if output_name == nil then
 		output_name = "dst"
 	end
-	
+
 	local meta = minetest.get_meta(pos)
 	local inv = meta:get_inventory()
 	local i = 0
@@ -74,7 +74,7 @@ function technic.send_items(pos, x_velocity, z_velocity, output_name)
 		if stack then
 			local item0 = stack:to_table()
 			if item0 then
-				item0["count"] = "1"
+				item0["count"] = 1
 				technic.tube_inject_item(pos, pos, vector.new(x_velocity, 0, z_velocity), item0)
 				stack:take_item(1)
 				inv:set_stack(output_name, i, stack)
@@ -84,7 +84,6 @@ function technic.send_items(pos, x_velocity, z_velocity, output_name)
 	end
 end
 
-
 function technic.smelt_item(meta, result, speed)
 	local inv = meta:get_inventory()
 	meta:set_int("cook_time", meta:get_int("cook_time") + 1)
@@ -109,10 +108,9 @@ function technic.handle_machine_pipeworks(pos, tube_upgrade, send_function)
 	if send_function == nil then
 		send_function = technic.send_items
 	end
-	
+
 	local node = minetest.get_node(pos)
 	local meta = minetest.get_meta(pos)
-	local inv = meta:get_inventory()
 	local pos1 = vector.new(pos)
 	local x_velocity = 0
 	local z_velocity = 0

technic/machines/register/compressor_recipes.lua

@@ -8,6 +8,71 @@ function technic.register_compressor_recipe(data)
 	technic.register_recipe("compressing", data)
 end
 
+-- Defuse the default recipes, since we have
+-- the compressor to take over in a more realistic manner.
+local crafts_to_clear = {
+	"default:desert_sand",
+	"default:sand",
+	"default:silver_sand",
+}
+
+local dependent_crafts_to_clear = {
+	everness = {
+		"everness:coral_sand",
+		"everness:coral_forest_deep_ocean_sand",
+		"everness:coral_white_sand",
+		"everness:crystal_sand",
+		"everness:cursed_sand",
+		"everness:cursed_lands_deep_ocean_sand",
+		"everness:crystal_forest_deep_ocean_sand",
+		"everness:mineral_sand",
+	},
+	nether = {
+		"nether:brick",
+		"nether:brick_compressed",
+		"nether:rack",
+		"nether:rack_deep",
+	},
+}
+
+-- Add dependent recipes to main collection of
+-- recipes to be cleared if their mods are used.
+for dependency, crafts in pairs(dependent_crafts_to_clear) do
+	if minetest.get_modpath(dependency) then
+		for _, craft_entry in ipairs(crafts) do
+			table.insert(crafts_to_clear, craft_entry)
+		end
+	end
+end
+
+-- Clear recipes
+for _, craft_name in ipairs(crafts_to_clear) do
+	-- Regular bricks are 2x2 shaped, nether bricks are 3x3 shaped (irregular)
+	local is_regular = string.sub(craft_name, 1, 12) ~= "nether:brick"
+	local shaped_recipe
+
+	if is_regular then
+		shaped_recipe = {
+			{craft_name, craft_name},
+			{craft_name, craft_name},
+		}
+	else
+		shaped_recipe = {
+			{craft_name, craft_name, craft_name},
+			{craft_name, craft_name, craft_name},
+			{craft_name, craft_name, craft_name},
+		}
+	end
+
+	minetest.clear_craft({
+		type = "shaped",
+		recipe = shaped_recipe,
+	})
+end
+
+--
+-- Compile compressor recipes
+--
 local recipes = {
 	{"default:snowblock",          "default:ice"},
 	{"default:sand 2",             "default:sandstone"},
@@ -21,27 +86,36 @@ local recipes = {
 	{"technic:uranium35_ingot 5",  "technic:uranium_fuel"},
 }
 
--- defuse the default sandstone recipe, since we have the compressor to take over in a more realistic manner
-minetest.clear_craft({
-	recipe = {
-		{"default:sand", "default:sand"},
-		{"default:sand", "default:sand"},
+local dependent_recipes = {
+	everness = {
+		{"everness:coral_deep_ocean_sand 2",          "everness:coral_deep_ocean_sandstone_block"},
+		{"everness:coral_sand 2",                     "everness:coral_sandstone"},
+		{"everness:coral_white_sand 2",               "everness:coral_white_sandstone"},
+		{"everness:crystal_forest_deep_ocean_sand 2", "everness:crystal_forest_deep_ocean_sandstone_block"},
+		{"everness:crystal_sand 2",                   "everness:crystal_sandstone"},
+		{"everness:cursed_lands_deep_ocean_sand 2",   "everness:cursed_lands_deep_ocean_sandstone_block"},
+		{"everness:cursed_sand 2",                    "everness:cursed_sandstone_block"},
+		{"everness:mineral_sand 2",                   "everness:mineral_sandstone"},
 	},
-})
-minetest.clear_craft({
-	recipe = {
-		{"default:desert_sand", "default:desert_sand"},
-		{"default:desert_sand", "default:desert_sand"},
+	nether = {
+		{"nether:brick 9",				"nether:brick_compressed"},
+		{"nether:brick_compressed 9",	"nether:nether_lump"},
+		{"nether:rack",                 "nether:brick",},
+		{"nether:rack_deep",            "nether:brick_deep"},
 	},
-})
-minetest.clear_craft({
-	recipe = {
-		{"default:silver_sand", "default:silver_sand"},
-		{"default:silver_sand", "default:silver_sand"},
-	},
-})
+}
 
+-- Add dependent recipes to main recipe collection
+-- if their mods are used.
+for dependency, recipes_to_add in pairs(dependent_recipes) do
+	if minetest.get_modpath(dependency) then
+		for _, recipe_entry in ipairs(recipes_to_add) do
+			table.insert(recipes, recipe_entry)
+		end
+	end
+end
+
+-- Register compressor recipes
 for _, data in pairs(recipes) do
 	technic.register_compressor_recipe({input = {data[1]}, output = data[2]})
 end
-

technic/machines/register/generator.lua

@@ -41,9 +41,9 @@ function technic.register_generator(data)
 		"image[4,1;1,1;default_furnace_fire_bg.png]"..
 		"list[current_player;main;0,5;8,4;]"..
 		"listring[]"
-	
+
 	local desc = S("Fuel-Fired %s Generator"):format(tier)
-	
+
 	local run = function(pos, node)
 		local meta = minetest.get_meta(pos)
 		local burn_time = meta:get_int("burn_time")
@@ -162,7 +162,6 @@ function technic.register_generator(data)
 			fs_helpers.on_receive_fields(pos, fields)
 			local meta = minetest.get_meta(pos)
 			local node = minetest.get_node(pos)
-			local form = generator_formspec
 			local form_buttons = ""
 			if not string.find(node.name, ":lv_") then
 				form_buttons = fs_helpers.cycling_button(
@@ -204,15 +203,15 @@ function technic.register_generator(data)
 		technic_run = run,
 		technic_on_disable = function(pos, node)
 			local timer = minetest.get_node_timer(pos)
-        		timer:start(1)
-        	end,
+			timer:start(1)
+		end,
 		on_timer = function(pos, node)
 			local meta = minetest.get_meta(pos)
 			local node = minetest.get_node(pos)
 
 			-- Connected back?
 			if meta:get_int(tier.."_EU_timeout") > 0 then return false end
-			
+
 			local burn_time = meta:get_int("burn_time") or 0
 
 			if burn_time <= 0 then

technic/machines/register/grinder_recipes.lua

@@ -23,6 +23,8 @@ local recipes = {
 	{"technic:sulfur_lump",        "technic:sulfur_dust 2"},
 	{"default:stone",              "technic:stone_dust"},
 	{"default:sand",               "technic:stone_dust"},
+	{"default:desert_sand",        "technic:stone_dust"},
+	{"default:silver_sand",        "technic:stone_dust"},
 
 	-- Other
 	{"default:cobble",           "default:gravel"},
@@ -34,49 +36,73 @@ local recipes = {
 	{"default:ice",              "default:snowblock"},
 }
 
+local dependent_recipes = {
+	-- Sandstones
+	everness = {
+		{"everness:coral_deep_ocean_sandstone_block",			"everness:coral_deep_ocean_sand 2"},
+		{"everness:coral_sandstone",							"everness:coral_sand 2"},
+		{"everness:coral_white_sandstone",						"everness:coral_white_sand 2"},
+		{"everness:crystal_forest_deep_ocean_sandstone_block",	"everness:crystal_forest_deep_ocean_sand 2"},
+		{"everness:crystal_sandstone",							"everness:crystal_sand 2"},
+		{"everness:cursed_lands_deep_ocean_sandstone_block",	"everness:cursed_lands_deep_ocean_sand 2"},
+		{"everness:cursed_sandstone_block",						"everness:cursed_sand 2"},
+		{"everness:mineral_sandstone",							"everness:mineral_sand 2"},
+	-- Lumps and wheat
+		{"everness:pyrite_lump",	"technic:pyrite_dust 2"},
+	},
+	farming = {
+		{"farming:seed_wheat",		"farming:flour 1"},
+	},
+	gloopores = {
+		{"gloopores:alatro_lump",	"technic:alatro_dust 2"},
+		{"gloopores:kalite_lump",	"technic:kalite_dust 2"},
+		{"gloopores:arol_lump",		"technic:arol_dust 2"},
+		{"gloopores:talinite_lump",	"technic:talinite_dust 2"},
+		{"gloopores:akalin_lump",	"technic:akalin_dust 2"},
+	},
+	homedecor = {
+		{"home_decor:brass_ingot",	"technic:brass_dust 1"},
+	},
+	moreores = {
+		{"moreores:mithril_lump",	"technic:mithril_dust 2"},
+		{"moreores:silver_lump",	"technic:silver_dust 2"},
+	},
+	nether = {
+		{"nether:nether_lump",		"technic:nether_dust 2"},
+	},
+}
+
+for dependency, materials_to_add in pairs(dependent_recipes) do
+	if minetest.get_modpath(dependency) then
+		for _, material_entry in ipairs(materials_to_add) do
+			table.insert(recipes, material_entry)
+		end
+	end
+end
+
 -- defuse the sandstone -> 4 sand recipe to avoid infinite sand bugs (also consult the inverse compressor recipe)
 minetest.clear_craft({
-	recipe = {
-		{"default:sandstone"}
-	},
+	recipe = {{"default:sandstone"}},
 })
 minetest.clear_craft({
-	recipe = {
-		{"default:desert_sandstone"}
-	},
+	recipe = {{"default:desert_sandstone"}},
 })
 minetest.clear_craft({
-	recipe = {
-		{"default:silver_sandstone"}
-	},
+	recipe = {{"default:silver_sandstone"}},
 })
 
-if minetest.get_modpath("farming") then
-	table.insert(recipes, {"farming:seed_wheat",   "farming:flour 1"})
+if minetest.get_modpath("everness") then
+	minetest.clear_craft({
+		recipe = {{"everness:mineral_sandstone"}},
+	})
+	-- Currently (2024-03-09), there seem to be no reverse recipes for any of the other everness sandstones.
 end
 
-if minetest.get_modpath("moreores") then
-	table.insert(recipes, {"moreores:mithril_lump",   "technic:mithril_dust 2"})
-	table.insert(recipes, {"moreores:silver_lump",    "technic:silver_dust 2"})
-end
-
-if minetest.get_modpath("gloopores") or minetest.get_modpath("glooptest") then
-	table.insert(recipes, {"gloopores:alatro_lump",   "technic:alatro_dust 2"})
-	table.insert(recipes, {"gloopores:kalite_lump",   "technic:kalite_dust 2"})
-	table.insert(recipes, {"gloopores:arol_lump",     "technic:arol_dust 2"})
-	table.insert(recipes, {"gloopores:talinite_lump", "technic:talinite_dust 2"})
-	table.insert(recipes, {"gloopores:akalin_lump",   "technic:akalin_dust 2"})
-end
-
-if minetest.get_modpath("homedecor") then
-	table.insert(recipes, {"home_decor:brass_ingot", "technic:brass_dust 1"})
-end
-
-for _, data in pairs(recipes) do
+for _, data in ipairs(recipes) do
 	technic.register_grinder_recipe({input = {data[1]}, output = data[2]})
 end
 
--- dusts
+-- Dusts
 local function register_dust(name, ingot)
 	local lname = string.lower(name)
 	lname = string.gsub(lname, ' ', '_')
@@ -94,33 +120,57 @@ local function register_dust(name, ingot)
 	end
 end
 
--- Sorted alphibeticaly
-register_dust("Brass",           "basic_materials:brass_ingot")
-register_dust("Bronze",          "default:bronze_ingot")
-register_dust("Carbon Steel",    "technic:carbon_steel_ingot")
-register_dust("Cast Iron",       "technic:cast_iron_ingot")
-register_dust("Chernobylite",    "technic:chernobylite_block")
-register_dust("Chromium",        "technic:chromium_ingot")
-register_dust("Coal",            nil)
-register_dust("Copper",          "default:copper_ingot")
-register_dust("Lead",            "technic:lead_ingot")
-register_dust("Gold",            "default:gold_ingot")
-register_dust("Mithril",         "moreores:mithril_ingot")
-register_dust("Silver",          "moreores:silver_ingot")
-register_dust("Stainless Steel", "technic:stainless_steel_ingot")
-register_dust("Stone",           "default:stone")
-register_dust("Sulfur",          nil)
-register_dust("Tin",             "default:tin_ingot")
-register_dust("Wrought Iron",    "technic:wrought_iron_ingot")
-register_dust("Zinc",            "technic:zinc_ingot")
-if minetest.get_modpath("gloopores") or minetest.get_modpath("glooptest") then
-	register_dust("Akalin",          "glooptest:akalin_ingot")
-	register_dust("Alatro",          "glooptest:alatro_ingot")
-	register_dust("Arol",            "glooptest:arol_ingot")
-	register_dust("Kalite",          nil)
-	register_dust("Talinite",        "glooptest:talinite_ingot")
+-- Sorted alphabetically
+local dusts = {
+	{"Brass",           "basic_materials:brass_ingot"},
+	{"Bronze",          "default:bronze_ingot"},
+	{"Carbon Steel",    "technic:carbon_steel_ingot"},
+	{"Cast Iron",       "technic:cast_iron_ingot"},
+	{"Chernobylite",    "technic:chernobylite_block"},
+	{"Chromium",        "technic:chromium_ingot"},
+	{"Coal",            nil},
+	{"Copper",          "default:copper_ingot"},
+	{"Lead",            "technic:lead_ingot"},
+	{"Gold",            "default:gold_ingot"},
+	{"Mithril",         "moreores:mithril_ingot"},
+	{"Silver",          "moreores:silver_ingot"},
+	{"Stainless Steel", "technic:stainless_steel_ingot"},
+	{"Stone",           "default:stone"},
+	{"Sulfur",          nil},
+	{"Tin",             "default:tin_ingot"},
+	{"Wrought Iron",    "technic:wrought_iron_ingot"},
+	{"Zinc",            "technic:zinc_ingot"},
+}
+
+local dependent_dusts = {
+	everness = {
+		{"Pyrite",          "everness:pyrite_ingot"},
+	},
+	gloopores = {
+		{"Akalin",          "glooptest:akalin_ingot"},
+		{"Alatro",          "glooptest:alatro_ingot"},
+		{"Arol",            "glooptest:arol_ingot"},
+		{"Kalite",          nil},
+		{"Talinite",        "glooptest:talinite_ingot"},
+	},
+	nether = {
+		{"Nether",          "nether:nether_ingot"},
+	},
+}
+
+for dependency, dusts_to_add in pairs(dependent_dusts) do
+	if minetest.get_modpath(dependency) then
+		for _, dust_entry in pairs(dusts_to_add) do
+			table.insert(dusts, dust_entry)
+		end
+	end
 end
 
+for _, data in ipairs(dusts) do
+	register_dust(data[1], data[2])
+end
+
+-- Uranium
 for p = 0, 35 do
 	local nici = (p ~= 0 and p ~= 7 and p ~= 35) and 1 or nil
 	local psuffix = p == 7 and "" or p
@@ -156,6 +206,7 @@ for pa = 0, 34 do
 	end
 end
 
+-- Fuels
 minetest.register_craft({
 	type = "fuel",
 	recipe = "technic:coal_dust",

technic/machines/register/grindings.lua

@@ -1,6 +1,5 @@
 local S = technic.getter
 local moretrees = minetest.get_modpath("moretrees")
-local mesecons_materials = minetest.get_modpath("mesecons_materials")
 local dye = minetest.get_modpath("dye")
 
 -- sawdust, the finest wood/tree grinding

technic/machines/register/machine_base.lua

@@ -39,6 +39,8 @@ function technic.register_base_machine(data)
 	local tier = data.tier
 	local ltier = string.lower(tier)
 
+	data.modname = data.modname or minetest.get_current_modname()
+
 	local groups = {cracky = 2, technic_machine = 1, ["technic_"..ltier] = 1}
 	if data.tube then
 		groups.tubedevice = 1
@@ -82,7 +84,7 @@ function technic.register_base_machine(data)
 		local eu_input = meta:get_int(tier.."_EU_input")
 
 		local machine_desc_tier = machine_desc:format(tier)
-		local machine_node      = "technic:"..ltier.."_"..machine_name
+		local machine_node      = data.modname..":"..ltier.."_"..machine_name
 		local machine_demand    = data.demand
 
 		-- Setup meta data if it does not exist.
@@ -157,15 +159,15 @@ function technic.register_base_machine(data)
 		tentry = ""
 	end
 
-	minetest.register_node("technic:"..ltier.."_"..machine_name, {
+	minetest.register_node(data.modname..":"..ltier.."_"..machine_name, {
 		description = machine_desc:format(tier),
 		tiles = {
-			"technic_"..ltier.."_"..machine_name.."_top.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_bottom.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_side.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_side.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_side.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_front.png"
+			data.modname.."_"..ltier.."_"..machine_name.."_top.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_bottom.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_side.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_side.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_side.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_front.png"
 		},
 		paramtype2 = "facedir",
 		groups = groups,
@@ -207,9 +209,10 @@ function technic.register_base_machine(data)
 		after_place_node = data.tube and pipeworks.after_place,
 		after_dig_node = technic.machine_after_dig_node,
 		on_receive_fields = function(pos, formname, fields, sender)
-			local node = minetest.get_node(pos)
+			if fields.quit then return end
 			if not pipeworks.may_configure(pos, sender) then return end
 			fs_helpers.on_receive_fields(pos, fields)
+			local node = minetest.get_node(pos)
 			local meta = minetest.get_meta(pos)
 			local form_buttons = ""
 			if not string.find(node.name, ":lv_") then
@@ -227,18 +230,18 @@ function technic.register_base_machine(data)
 		end,
 	})
 
-	minetest.register_node("technic:"..ltier.."_"..machine_name.."_active",{
+	minetest.register_node(data.modname..":"..ltier.."_"..machine_name.."_active",{
 		description = machine_desc:format(tier),
 		tiles = {
-			"technic_"..ltier.."_"..machine_name.."_top.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_bottom.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_side.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_side.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_side.png"..tentry,
-			"technic_"..ltier.."_"..machine_name.."_front_active.png"
+			data.modname.."_"..ltier.."_"..machine_name.."_top.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_bottom.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_side.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_side.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_side.png"..tentry,
+			data.modname.."_"..ltier.."_"..machine_name.."_front_active.png"
 		},
 		paramtype2 = "facedir",
-		drop = "technic:"..ltier.."_"..machine_name,
+		drop = data.modname..":"..ltier.."_"..machine_name,
 		groups = active_groups,
 		connect_sides = data.connect_sides or connect_default,
 		legacy_facedir_simple = true,
@@ -249,11 +252,12 @@ function technic.register_base_machine(data)
 		allow_metadata_inventory_take = technic.machine_inventory_take,
 		allow_metadata_inventory_move = technic.machine_inventory_move,
 		technic_run = run,
-		technic_disabled_machine_name = "technic:"..ltier.."_"..machine_name,
+		technic_disabled_machine_name = data.modname..":"..ltier.."_"..machine_name,
 		on_receive_fields = function(pos, formname, fields, sender)
-			local node = minetest.get_node(pos)
+			if fields.quit then return end
 			if not pipeworks.may_configure(pos, sender) then return end
 			fs_helpers.on_receive_fields(pos, fields)
+			local node = minetest.get_node(pos)
 			local meta = minetest.get_meta(pos)
 			local form_buttons = ""
 			if not string.find(node.name, ":lv_") then
@@ -271,8 +275,8 @@ function technic.register_base_machine(data)
 		end,
 	})
 
-	technic.register_machine(tier, "technic:"..ltier.."_"..machine_name,            technic.receiver)
-	technic.register_machine(tier, "technic:"..ltier.."_"..machine_name.."_active", technic.receiver)
+	technic.register_machine(tier, data.modname..":"..ltier.."_"..machine_name,            technic.receiver)
+	technic.register_machine(tier, data.modname..":"..ltier.."_"..machine_name.."_active", technic.receiver)
 
 end -- End registration
 

technic/machines/register/recipes.lua

@@ -1,4 +1,6 @@
 local have_ui = minetest.get_modpath("unified_inventory")
+local have_cg = minetest.get_modpath("craftguide")
+local have_i3 = minetest.get_modpath("i3")
 
 technic.recipes = { cooking = { input_size = 1, output_size = 1 } }
 function technic.register_recipe_type(typename, origdata)
@@ -6,19 +8,34 @@ function technic.register_recipe_type(typename, origdata)
 	for k, v in pairs(origdata) do data[k] = v end
 	data.input_size = data.input_size or 1
 	data.output_size = data.output_size or 1
-	if have_ui and unified_inventory.register_craft_type and data.output_size == 1 then
-		unified_inventory.register_craft_type(typename, {
-			description = data.description,
-			width = data.input_size,
-			height = 1,
-		})
+	if data.output_size == 1 then
+		if have_ui and unified_inventory.register_craft_type then
+			unified_inventory.register_craft_type(typename, {
+				description = data.description,
+				width = data.input_size,
+				height = 1,
+			})
+		end
+		if have_cg and craftguide.register_craft_type then
+			craftguide.register_craft_type(typename, {
+				description = data.description,
+			})
+		end
+		if have_i3 then
+			i3.register_craft_type(typename, {
+				description = data.description,
+			})
+		end
 	end
 	data.recipes = {}
 	technic.recipes[typename] = data
 end
 
 local function get_recipe_index(items)
-	if not items or type(items) ~= "table" then return false end
+	if type(items) ~= "table" then
+		return false
+	end
+
 	local l = {}
 	for i, stack in ipairs(items) do
 		l[i] = ItemStack(stack):get_name()
@@ -39,7 +56,7 @@ local function register_recipe(typename, data)
 	else
 		data.output = ItemStack(data.output):to_string()
 	end
-	
+
 	local recipe = {time = data.time, input = {}, output = data.output}
 	local index = get_recipe_index(data.input)
 	if not index then
@@ -49,7 +66,7 @@ local function register_recipe(typename, data)
 	for _, stack in ipairs(data.input) do
 		recipe.input[ItemStack(stack):get_name()] = ItemStack(stack):get_count()
 	end
-	
+
 	technic.recipes[typename].recipes[index] = recipe
 	if have_ui and technic.recipes[typename].output_size == 1 then
 		unified_inventory.register_craft({
@@ -59,6 +76,26 @@ local function register_recipe(typename, data)
 			width = 0,
 		})
 	end
+	if (have_cg or have_i3) and technic.recipes[typename].output_size == 1 then
+		local result = data.output
+		if type(result) == "table" then
+			result = result[1]
+		end
+		if have_cg and craftguide.register_craft then
+			craftguide.register_craft({
+				type = typename,
+				result = result,
+				items = data.input,
+			})
+		end
+		if have_i3 then
+			i3.register_craft({
+				type = typename,
+				result = result,
+				items = data.input,
+			})
+		end
+	end
 end
 
 function technic.register_recipe(typename, data)

technic/machines/register/solar_array.lua

@@ -56,7 +56,6 @@ function technic.register_solar_array(data)
 		},
 		on_construct = function(pos)
 			local meta = minetest.get_meta(pos)
-			local name = minetest.get_node(pos).name
 			meta:set_int(tier.."_EU_supply", 0)
 		end,
 		technic_run = run,

technic/machines/supply_converter.lua

@@ -120,7 +120,7 @@ local run = function(pos, node, run_stage)
 		return
 	end
 
-	local remain = 0.9
+	local efficiency = 0.9
 	-- Machine information
 	local machine_name  = S("Supply Converter")
 	local meta          = minetest.get_meta(pos)
@@ -133,7 +133,6 @@ local run = function(pos, node, run_stage)
 		enabled = enabled == "1"
 	end
 	enabled = enabled and (meta:get_int("mesecon_mode") == 0 or meta:get_int("mesecon_effect") ~= 0)
-	local demand = enabled and meta:get_int("power") or 0
 
 	local pos_up        = {x=pos.x, y=pos.y+1, z=pos.z}
 	local pos_down      = {x=pos.x, y=pos.y-1, z=pos.z}
@@ -144,14 +143,37 @@ local run = function(pos, node, run_stage)
 	local to   = technic.get_cable_tier(name_down)
 
 	if from and to then
-		local input = meta:get_int(from.."_EU_input")
-		meta:set_int(from.."_EU_demand", demand)
-		meta:set_int(from.."_EU_supply", 0)
-		meta:set_int(to.."_EU_demand", 0)
-		meta:set_int(to.."_EU_supply", input * remain)
-		meta:set_string("infotext", S("@1 (@2 @3 -> @4 @5)", machine_name,
-			technic.EU_string(input), from,
-			technic.EU_string(input * remain), to))
+		-- Get the "to" network switching station for EU demand calculation
+		local network_hash = technic.cables[minetest.hash_node_position(pos_down)]
+		local network = network_hash and minetest.get_position_from_hash(network_hash)
+		local sw_pos = network and {x=network.x,y=network.y+1,z=network.z}
+		local timeout = 0
+		for tier in pairs(technic.machines) do
+			-- Supply converter must be connected to a network
+			timeout = math.max(meta:get_int(tier.."_EU_timeout"), timeout)
+		end
+		if timeout > 0 and sw_pos and minetest.get_node(sw_pos).name == "technic:switching_station" then
+			local sw_meta = minetest.get_meta(sw_pos)
+			local demand = 0
+			if enabled then
+				-- Reverse evaluate the required machine and round to a nice number
+				demand = sw_meta:get_int("ba_demand") + sw_meta:get_int("demand")
+				demand = 100 * math.ceil(demand / efficiency / 100)
+				-- Do not draw more than the limit
+				demand = math.min(demand, meta:get_int("power"))
+			end
+
+			local input = meta:get_int(from.."_EU_input") -- actual input
+			meta:set_int(from.."_EU_demand", demand) -- desired input
+			meta:set_int(from.."_EU_supply", 0)
+			meta:set_int(to.."_EU_demand", 0)
+			meta:set_int(to.."_EU_supply", input * efficiency)
+			meta:set_string("infotext", S("@1 (@2 @3 -> @4 @5)", machine_name,
+				technic.EU_string(input), from,
+				technic.EU_string(input * efficiency), to))
+		else
+			meta:set_string("infotext",S("%s Has No Network"):format(machine_name))
+		end
 	else
 		meta:set_string("infotext", S("%s Has Bad Cabling"):format(machine_name))
 		if to then

technic/machines/switching_station.lua

@@ -45,14 +45,12 @@ minetest.register_node("technic:switching_station",{
 		meta:set_string("active", 1)
 		meta:set_string("channel", "switching_station"..minetest.pos_to_string(pos))
 		meta:set_string("formspec", "field[channel;Channel;${channel}]")
-		local poshash = minetest.hash_node_position(pos)
 		technic.redundant_warn.poshash = nil
 	end,
 	after_dig_node = function(pos)
 		minetest.forceload_free_block(pos)
 		pos.y = pos.y - 1
 		minetest.forceload_free_block(pos)
-		local poshash = minetest.hash_node_position(pos)
 		technic.redundant_warn.poshash = nil
 	end,
 	on_receive_fields = function(pos, formname, fields, sender)
@@ -99,10 +97,14 @@ local function flatten(map)
 	return list
 end
 
--- Add a wire node to the LV/MV/HV network
+-- Add a node to the LV/MV/HV network
+-- Returns: indicator whether the node is new in the network
+local hash_node_position = minetest.hash_node_position
 local function add_network_node(nodes, pos, network_id)
-	local node_id = minetest.hash_node_position(pos)
-	technic.cables[node_id] = network_id
+	local node_id = hash_node_position(pos)
+	if network_id then
+		technic.cables[node_id] = network_id
+	end
 	if nodes[node_id] then
 		return false
 	end
@@ -117,39 +119,58 @@ local function add_cable_node(nodes, pos, network_id, queue)
 end
 
 -- Generic function to add found connected nodes to the right classification array
-local check_node_subp = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, pos, machines, tier, sw_pos, from_below, network_id, queue)
+-- !! IMPORTANT: register/cables.lua -> clear_networks() must be kept in sync
+local check_node_subp = function(network, pos, machines, sw_pos, from_below, network_id, queue)
 	technic.get_or_load_node(pos)
 	local name = minetest.get_node(pos).name
 
-	if technic.is_tier_cable(name, tier) then
-		add_cable_node(all_nodes, pos,network_id, queue)
-	elseif machines[name] then
-		--dprint(name.." is a "..machines[name])
-		local meta = minetest.get_meta(pos)
-		meta:set_string(tier.."_network",minetest.pos_to_string(sw_pos))
-		if     machines[name] == technic.producer then
-			add_network_node(PR_nodes, pos, network_id)
-		elseif machines[name] == technic.receiver then
-			add_network_node(RE_nodes, pos, network_id)
-		elseif machines[name] == technic.producer_receiver then
-			add_network_node(PR_nodes, pos, network_id)
-			add_network_node(RE_nodes, pos, network_id)
-		elseif machines[name] == "SPECIAL" and
-				(pos.x ~= sw_pos.x or pos.y ~= sw_pos.y or pos.z ~= sw_pos.z) and
-				from_below then
-			-- Another switching station -> disable it
-			add_network_node(SP_nodes, pos, network_id)
-			meta:set_int("active", 0)
-		elseif machines[name] == technic.battery then
-			add_network_node(BA_nodes, pos, network_id)
-		end
-
-		meta:set_int(tier.."_EU_timeout", 2) -- Touch node
+	if technic.is_tier_cable(name, network.tier) then
+		add_cable_node(network.all_nodes, pos, network_id, queue)
+		return
 	end
+
+	local eu_type = machines[name]
+	if not eu_type then
+		return
+	end
+
+	--dprint(name.." is a "..machines[name])
+	local meta = minetest.get_meta(pos)
+	-- Normal tostring() does not have enough precision, neither does meta:set_int()
+	-- Lua 5.1 bug: Cannot use hexadecimal notation for compression (see LuaJIT #911)
+	local network_str = string.format("%.20g", network_id)
+	local network_key = network.tier.."_network"
+	local m_network_str = meta:get_string(network_key)
+
+	if m_network_str == "" then
+		meta:set_string(network_key, network_str)
+	else
+		if m_network_str ~= network_str then
+			return
+		end
+	end
+
+	if     eu_type == technic.producer then
+		add_network_node(network.PR_nodes, pos)
+	elseif eu_type == technic.receiver then
+		add_network_node(network.RE_nodes, pos)
+	elseif eu_type == technic.producer_receiver then
+		add_network_node(network.PR_nodes, pos)
+		add_network_node(network.RE_nodes, pos)
+	elseif eu_type == technic.battery then
+		add_network_node(network.BA_nodes, pos)
+	elseif eu_type == "SPECIAL" and from_below and
+			not vector.equals(pos, sw_pos) then
+		-- Another switching station -> disable it
+		add_network_node(network.SP_nodes, pos)
+		meta:set_int("active", 0)
+	end
+
+	meta:set_int(network.tier.."_EU_timeout", 2) -- Touch node
 end
 
 -- Traverse a network given a list of machines and a cable type name
-local traverse_network = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, pos, machines, tier, sw_pos, network_id, queue)
+local traverse_network = function(network, pos, machines, sw_pos, network_id, queue)
 	local positions = {
 		{x=pos.x+1, y=pos.y,   z=pos.z},
 		{x=pos.x-1, y=pos.y,   z=pos.z},
@@ -158,7 +179,7 @@ local traverse_network = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_no
 		{x=pos.x,   y=pos.y,   z=pos.z+1},
 		{x=pos.x,   y=pos.y,   z=pos.z-1}}
 	for i, cur_pos in pairs(positions) do
-		check_node_subp(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, cur_pos, machines, tier, sw_pos, i == 3, network_id, queue)
+		check_node_subp(network, cur_pos, machines, sw_pos, i == 3, network_id, queue)
 	end
 end
 
@@ -169,43 +190,50 @@ local touch_nodes = function(list, tier)
 	end
 end
 
-local get_network = function(sw_pos, pos1, tier)
-	local network_id = minetest.hash_node_position(pos1)
+local get_network = function(sw_pos, cable_pos, tier)
+	local network_id = minetest.hash_node_position(cable_pos)
 	local cached = technic.networks[network_id]
 	if cached and cached.tier == tier then
+		-- Re-use cached system data
 		touch_nodes(cached.PR_nodes, tier)
 		touch_nodes(cached.BA_nodes, tier)
 		touch_nodes(cached.RE_nodes, tier)
 		for _, pos in ipairs(cached.SP_nodes) do
+			-- Disable all other switching stations (again)
 			local meta = minetest.get_meta(pos)
 			meta:set_int("active", 0)
-			meta:set_string("active_pos", minetest.serialize(sw_pos))
 		end
 		return cached.PR_nodes, cached.BA_nodes, cached.RE_nodes
 	end
-	local PR_nodes = {}
-	local BA_nodes = {}
-	local RE_nodes = {}
-	local SP_nodes = {}
-	local all_nodes = {}
+	local machines = technic.machines[tier]
+	local network = {
+		tier = tier,
+		PR_nodes = {},
+		BA_nodes = {},
+		RE_nodes = {},
+		SP_nodes = {},
+		all_nodes = {}
+	}
+	-- Traverse the network step by step starting from the node underneath the switching station
 	local queue = {}
-	add_cable_node(all_nodes, pos1, network_id, queue)
+	add_cable_node(network.all_nodes, cable_pos, network_id, queue)
 	while next(queue) do
 		local to_visit = {}
 		for _, pos in ipairs(queue) do
-			traverse_network(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes,
-					pos, technic.machines[tier], tier, sw_pos, network_id, to_visit)
+			traverse_network(network, pos, machines, sw_pos, network_id, to_visit)
 		end
 		queue = to_visit
 	end
-	PR_nodes = flatten(PR_nodes)
-	BA_nodes = flatten(BA_nodes)
-	RE_nodes = flatten(RE_nodes)
-	SP_nodes = flatten(SP_nodes)
-	all_nodes = flatten(all_nodes)
-	technic.networks[network_id] = {tier = tier, all_nodes = all_nodes, SP_nodes = SP_nodes,
-			PR_nodes = PR_nodes, RE_nodes = RE_nodes, BA_nodes = BA_nodes}
-	return PR_nodes, BA_nodes, RE_nodes
+
+	-- Convert { [hash] = pos, ... } to { pos, ... }
+	network.PR_nodes = flatten(network.PR_nodes)
+	network.BA_nodes = flatten(network.BA_nodes)
+	network.RE_nodes = flatten(network.RE_nodes)
+	network.SP_nodes = flatten(network.SP_nodes)
+	network.all_nodes = flatten(network.all_nodes)
+	technic.networks[network_id] = network
+
+	return network.PR_nodes, network.BA_nodes, network.RE_nodes
 end
 
 -----------------------------------------------
@@ -215,19 +243,17 @@ end
 technic.powerctrl_state = true
 
 minetest.register_chatcommand("powerctrl", {
-	params = "state",
+	params = "[on/off]",
 	description = "Enables or disables technic's switching station ABM",
 	privs = { basic_privs = true },
 	func = function(name, state)
-		if state == "on" then
-			technic.powerctrl_state = true
-		else
-			technic.powerctrl_state = false
-		end
+		technic.powerctrl_state = (state:trim():lower() == "on")
+		minetest.chat_send_player(name, "Technic switching station: " ..
+			(technic.powerctrl_state and "on" or "off"))
 	end
 })
 
--- Run all the nodes
+-- Run `technic_run` on all nodes in the power grid
 local function run_nodes(list, run_stage)
 	for _, pos in ipairs(list) do
 		technic.get_or_load_node(pos)
@@ -243,32 +269,23 @@ end
 
 minetest.register_abm({
 	nodenames = {"technic:switching_station"},
-	label = "Switching Station", -- allows the mtt profiler to profile this abm individually
+	label = "Switching Station", -- name for the Minetest mod profiler
 	interval   = 1,
 	chance     = 1,
 	action = function(pos, node, active_object_count, active_object_count_wider)
 		if not technic.powerctrl_state then return end
-		local meta             = minetest.get_meta(pos)
-		local meta1            = nil
-		local pos1             = {}
-		local PR_EU            = 0 -- EUs from PR nodes
-		local BA_PR_EU         = 0 -- EUs from BA nodes (discharching)
-		local BA_RE_EU         = 0 -- EUs to BA nodes (charging)
-		local RE_EU            = 0 -- EUs to RE nodes
-
-		local tier      = ""
-		local PR_nodes
-		local BA_nodes
-		local RE_nodes
+		local meta = minetest.get_meta(pos)
+		local meta1
+		local PR_nodes, BA_nodes, RE_nodes
 		local machine_name = S("Switching Station")
 
 		-- Which kind of network are we on:
-		pos1 = {x=pos.x, y=pos.y-1, z=pos.z}
+		local cable_pos = {x=pos.x, y=pos.y-1, z=pos.z}
 
 		--Disable if necessary
 		if meta:get_int("active") ~= 1 then
 			minetest.forceload_free_block(pos)
-			minetest.forceload_free_block(pos1)
+			minetest.forceload_free_block(cable_pos)
 			meta:set_string("infotext",S("%s Already Present"):format(machine_name))
 
 			local poshash = minetest.hash_node_position(pos)
@@ -280,18 +297,18 @@ minetest.register_abm({
 			return
 		end
 
-		local name = minetest.get_node(pos1).name
+		local name = minetest.get_node(cable_pos).name
 		local tier = technic.get_cable_tier(name)
 		if tier then
 			-- Forceload switching station
 			minetest.forceload_block(pos)
-			minetest.forceload_block(pos1)
-			PR_nodes, BA_nodes, RE_nodes = get_network(pos, pos1, tier)
+			minetest.forceload_block(cable_pos)
+			PR_nodes, BA_nodes, RE_nodes = get_network(pos, cable_pos, tier)
 		else
 			--dprint("Not connected to a network")
 			meta:set_string("infotext", S("%s Has No Network"):format(machine_name))
 			minetest.forceload_free_block(pos)
-			minetest.forceload_free_block(pos1)
+			minetest.forceload_free_block(cable_pos)
 			return
 		end
 
@@ -344,20 +361,16 @@ minetest.register_abm({
 		end
 		--dprint("Total RE demand:"..RE_eu_demand)
 
-		-- Get all the power from the BA nodes
-		local BA_eu_supply = 0
+		-- Batteries
+		local BA_eu_supply, BA_eu_demand = 0, 0
 		for _, pos1 in pairs(BA_nodes) do
 			meta1 = minetest.get_meta(pos1)
 			BA_eu_supply = BA_eu_supply + meta1:get_int(eu_supply_str)
-		end
-		--dprint("Total BA supply:"..BA_eu_supply)
-
-		-- Get all the demand from the BA nodes
-		local BA_eu_demand = 0
-		for _, pos1 in pairs(BA_nodes) do
-			meta1 = minetest.get_meta(pos1)
 			BA_eu_demand = BA_eu_demand + meta1:get_int(eu_demand_str)
 		end
+		-- Expose value for the supply converter
+		meta:set_int("ba_demand", BA_eu_demand)
+		--dprint("Total BA supply:"..BA_eu_supply)
 		--dprint("Total BA demand:"..BA_eu_demand)
 
 		meta:set_string("infotext", S("@1. Supply: @2 Demand: @3",
@@ -378,8 +391,8 @@ minetest.register_abm({
 		end
 
 		-- Data that will be used by the power monitor
-		meta:set_int("supply",PR_eu_supply)
-		meta:set_int("demand",RE_eu_demand)
+		meta:set_int("supply", PR_eu_supply)
+		meta:set_int("demand", RE_eu_demand)
 
 		-- If the PR supply is enough for the RE demand supply them all
 		if PR_eu_supply >= RE_eu_demand then
@@ -453,6 +466,7 @@ local function switching_station_timeout_count(pos, tier)
 	local meta = minetest.get_meta(pos)
 	local timeout = meta:get_int(tier.."_EU_timeout")
 	if timeout <= 0 then
+		meta:set_string(tier.."_network", "")
 		meta:set_int(tier.."_EU_input", 0) -- Not needed anymore <-- actually, it is for supply converter
 		return true
 	else
@@ -466,21 +480,29 @@ minetest.register_abm({
 	interval   = 1,
 	chance     = 1,
 	action = function(pos, node, active_object_count, active_object_count_wider)
+		local has_network = false
+		local technic_machine = false
 		for tier, machines in pairs(technic.machines) do
-			if machines[node.name] and switching_station_timeout_count(pos, tier) then
-				local nodedef = minetest.registered_nodes[node.name]
-				if nodedef and nodedef.technic_disabled_machine_name then
-					node.name = nodedef.technic_disabled_machine_name
-					minetest.swap_node(pos, node)
-				elseif nodedef and nodedef.technic_on_disable then
-					nodedef.technic_on_disable(pos, node)
-				end
-				if nodedef then
-					local meta = minetest.get_meta(pos)
-					meta:set_string("infotext", S("%s Has No Network"):format(nodedef.description))
+			if machines[node.name] then
+				technic_machine = true
+				if not switching_station_timeout_count(pos, tier) then
+					has_network = true
 				end
 			end
 		end
+
+		if technic_machine and not has_network then
+			local nodedef = minetest.registered_nodes[node.name]
+			local meta = minetest.get_meta(pos)
+			meta:set_string("infotext", S("%s Has No Network"):format(nodedef.description))
+			if nodedef.technic_disabled_machine_name then
+				node.name = nodedef.technic_disabled_machine_name
+				minetest.swap_node(pos, node)
+			end
+			if nodedef.technic_on_disable then
+				nodedef.technic_on_disable(pos, node)
+			end
+		end
 	end,
 })
 

technic/mod.conf

@@ -1,3 +1,3 @@
 name = technic
 depends = default, pipeworks, technic_worldgen, basic_materials
-optional_depends = bucket, screwdriver, mesecons, mesecons_mvps, digilines, digiline_remote, intllib, unified_inventory, vector_extras, dye
+optional_depends = bucket, screwdriver, mesecons, mesecons_mvps, digilines, digiline_remote, intllib, unified_inventory, vector_extras, dye, craftguide, i3, everness, nether

technic/radiation.lua

@@ -244,7 +244,6 @@ to be safe, and limits the range at which source/player interactions
 need to be considered.
 --]]
 local abdomen_offset = 1
-local cache_scaled_shielding = {}
 local rad_dmg_cutoff = 0.2
 local radiated_players = {}
 
@@ -429,7 +428,7 @@ for _, state in pairs({"flowing", "source"}) do
 		liquidtype = state,
 		liquid_alternative_flowing = "technic:corium_flowing",
 		liquid_alternative_source = "technic:corium_source",
-		liquid_viscosity = LAVA_VISC,
+		liquid_viscosity = 7, -- like lava
 		liquid_renewable = false,
 		damage_per_second = 6,
 		post_effect_color = {a=192, r=80, g=160, b=80},

technic/register.lua

@@ -44,7 +44,10 @@ end
 
 -- Wear down a tool depending on the remaining charge.
 function technic.set_RE_wear(itemstack, item_load, max_load)
-	if (minetest.registered_items[itemstack:get_name()].wear_represents or "mechanical_wear") ~= "technic_RE_charge" then return itemstack end
+	local def = minetest.registered_items[itemstack:get_name()]
+	if (def.wear_represents or "mechanical_wear") ~= "technic_RE_charge" then
+		return itemstack
+	end
 	local temp
 	if item_load == 0 then
 		temp = 0