Add xpanes for the snow map

mods/mtg/xpanes/README.txt

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+Minetest Game mod: xpanes
+=========================
+See license.txt for license information.
+
+Authors of source code
+----------------------
+Originally by xyz (MIT)
+BlockMen (MIT)
+sofar (MIT)
+Various Minetest Game developers and contributors (MIT)
+
+Authors of media (textures)
+---------------------------
+xyz (CC BY-SA 3.0):
+  All textures not mentioned below.
+
+Gambit (CC BY-SA 3.0):
+  xpanes_bar.png
+
+paramat (CC BY-SA 3.0):
+  xpanes_bar_top.png
+
+Krock (CC0 1.0):
+  xpanes_edge.png
+
+TumeniNodes (CC BY-SA 3.0):
+  xpanes_door_steel_bar.png
+  xpanes_item_steel_bar.png
+  xpanes_trapdoor_steel_bar.png
+  xpanes_trapdoor_steel_bar_side.png
+  xpanes_steel_bar_door_close.ogg
+  xpanes_steel_bar_door_open.ogg

mods/mtg/xpanes/init.lua

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+-- xpanes/init.lua
+
+-- Load support for MT game translation.
+local S = minetest.get_translator("xpanes")
+
+
+local function is_pane(pos)
+	return minetest.get_item_group(minetest.get_node(pos).name, "pane") > 0
+end
+
+local function connects_dir(pos, name, dir)
+	local aside = vector.add(pos, minetest.facedir_to_dir(dir))
+	if is_pane(aside) then
+		return true
+	end
+
+	local connects_to = minetest.registered_nodes[name].connects_to
+	if not connects_to then
+		return false
+	end
+	local list = minetest.find_nodes_in_area(aside, aside, connects_to)
+
+	if #list > 0 then
+		return true
+	end
+
+	return false
+end
+
+local function swap(pos, node, name, param2)
+	if node.name == name and node.param2 == param2 then
+		return
+	end
+
+	minetest.swap_node(pos, {name = name, param2 = param2})
+end
+
+local function update_pane(pos)
+	if not is_pane(pos) then
+		return
+	end
+	local node = minetest.get_node(pos)
+	local name = node.name
+	if name:sub(-5) == "_flat" then
+		name = name:sub(1, -6)
+	end
+
+	local any = node.param2
+	local c = {}
+	local count = 0
+	for dir = 0, 3 do
+		c[dir] = connects_dir(pos, name, dir)
+		if c[dir] then
+			any = dir
+			count = count + 1
+		end
+	end
+
+	if count == 0 then
+		swap(pos, node, name .. "_flat", any)
+	elseif count == 1 then
+		swap(pos, node, name .. "_flat", (any + 1) % 4)
+	elseif count == 2 then
+		if (c[0] and c[2]) or (c[1] and c[3]) then
+			swap(pos, node, name .. "_flat", (any + 1) % 4)
+		else
+			swap(pos, node, name, 0)
+		end
+	else
+		swap(pos, node, name, 0)
+	end
+end
+
+minetest.register_on_placenode(function(pos, node)
+	if minetest.get_item_group(node, "pane") then
+		update_pane(pos)
+	end
+	for i = 0, 3 do
+		local dir = minetest.facedir_to_dir(i)
+		update_pane(vector.add(pos, dir))
+	end
+end)
+
+minetest.register_on_dignode(function(pos)
+	for i = 0, 3 do
+		local dir = minetest.facedir_to_dir(i)
+		update_pane(vector.add(pos, dir))
+	end
+end)
+
+xpanes = {}
+function xpanes.register_pane(name, def)
+	for i = 1, 15 do
+		minetest.register_alias("xpanes:" .. name .. "_" .. i, "xpanes:" .. name .. "_flat")
+	end
+
+	local flatgroups = table.copy(def.groups)
+	flatgroups.pane = 1
+	minetest.register_node(":xpanes:" .. name .. "_flat", {
+		description = def.description,
+		drawtype = "nodebox",
+		paramtype = "light",
+		is_ground_content = false,
+		sunlight_propagates = true,
+		inventory_image = def.inventory_image,
+		wield_image = def.wield_image,
+		paramtype2 = "facedir",
+		tiles = {
+			def.textures[3],
+			def.textures[3],
+			def.textures[3],
+			def.textures[3],
+			def.textures[1],
+			def.textures[1]
+		},
+		groups = flatgroups,
+		drop = "xpanes:" .. name .. "_flat",
+		sounds = def.sounds,
+		use_texture_alpha = def.use_texture_alpha and "blend" or "clip",
+		node_box = {
+			type = "fixed",
+			fixed = {{-1/2, -1/2, -1/32, 1/2, 1/2, 1/32}},
+		},
+		selection_box = {
+			type = "fixed",
+			fixed = {{-1/2, -1/2, -1/32, 1/2, 1/2, 1/32}},
+		},
+		connect_sides = { "left", "right" },
+	})
+
+	local groups = table.copy(def.groups)
+	groups.pane = 1
+	groups.not_in_creative_inventory = 1
+	minetest.register_node(":xpanes:" .. name, {
+		drawtype = "nodebox",
+		paramtype = "light",
+		is_ground_content = false,
+		sunlight_propagates = true,
+		description = def.description,
+		tiles = {
+			def.textures[3],
+			def.textures[3],
+			def.textures[1]
+		},
+		groups = groups,
+		drop = "xpanes:" .. name .. "_flat",
+		sounds = def.sounds,
+		use_texture_alpha = def.use_texture_alpha and "blend" or "clip",
+		node_box = {
+			type = "connected",
+			fixed = {{-1/32, -1/2, -1/32, 1/32, 1/2, 1/32}},
+			connect_front = {{-1/32, -1/2, -1/2, 1/32, 1/2, -1/32}},
+			connect_left = {{-1/2, -1/2, -1/32, -1/32, 1/2, 1/32}},
+			connect_back = {{-1/32, -1/2, 1/32, 1/32, 1/2, 1/2}},
+			connect_right = {{1/32, -1/2, -1/32, 1/2, 1/2, 1/32}},
+		},
+		connects_to = {"group:pane", "group:stone", "group:glass", "group:wood", "group:tree"},
+	})
+
+	minetest.register_craft({
+		output = "xpanes:" .. name .. "_flat 16",
+		recipe = def.recipe
+	})
+end
+
+xpanes.register_pane("pane", {
+	description = S("Glass Pane"),
+	textures = {"default_glass.png", "", "xpanes_edge.png"},
+	inventory_image = "default_glass.png",
+	wield_image = "default_glass.png",
+	sounds = default.node_sound_glass_defaults(),
+	groups = {snappy=2, cracky=3, oddly_breakable_by_hand=3},
+	recipe = {
+		{"default:glass", "default:glass", "default:glass"},
+		{"default:glass", "default:glass", "default:glass"}
+	}
+})
+
+xpanes.register_pane("obsidian_pane", {
+	description = S("Obsidian Glass Pane"),
+	textures = {"default_obsidian_glass.png", "", "xpanes_edge_obsidian.png"},
+	inventory_image = "default_obsidian_glass.png",
+	wield_image = "default_obsidian_glass.png",
+	sounds = default.node_sound_glass_defaults(),
+	groups = {snappy=2, cracky=3},
+	recipe = {
+		{"default:obsidian_glass", "default:obsidian_glass", "default:obsidian_glass"},
+		{"default:obsidian_glass", "default:obsidian_glass", "default:obsidian_glass"}
+	}
+})
+
+xpanes.register_pane("bar", {
+	description = S("Steel Bars"),
+	textures = {"xpanes_bar.png", "", "xpanes_bar_top.png"},
+	inventory_image = "xpanes_bar.png",
+	wield_image = "xpanes_bar.png",
+	groups = {cracky=2},
+	sounds = default.node_sound_metal_defaults(),
+	recipe = {
+		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"}
+	}
+})
+
+minetest.register_lbm({
+	name = "xpanes:gen2",
+	nodenames = {"group:pane"},
+	action = function(pos, node)
+		update_pane(pos)
+		for i = 0, 3 do
+			local dir = minetest.facedir_to_dir(i)
+			update_pane(vector.add(pos, dir))
+		end
+	end
+})
+
+-- Register steel bar doors and trapdoors
+
+if minetest.get_modpath("doors") then
+
+	doors.register("xpanes:door_steel_bar", {
+		tiles = {{name = "xpanes_door_steel_bar.png", backface_culling = true}},
+		description = S("Steel Bar Door"),
+		inventory_image = "xpanes_item_steel_bar.png",
+		protected = true,
+		groups = {node = 1, cracky = 1, level = 2},
+		sounds = default.node_sound_metal_defaults(),
+		sound_open = "xpanes_steel_bar_door_open",
+		sound_close = "xpanes_steel_bar_door_close",
+		gain_open = 0.15,
+		gain_close = 0.13,
+		recipe = {
+			{"xpanes:bar_flat", "xpanes:bar_flat"},
+			{"xpanes:bar_flat", "xpanes:bar_flat"},
+			{"xpanes:bar_flat", "xpanes:bar_flat"},
+		},
+	})
+
+	doors.register_trapdoor("xpanes:trapdoor_steel_bar", {
+		description = S("Steel Bar Trapdoor"),
+		inventory_image = "xpanes_trapdoor_steel_bar.png",
+		wield_image = "xpanes_trapdoor_steel_bar.png",
+		tile_front = "xpanes_trapdoor_steel_bar.png",
+		tile_side = "xpanes_trapdoor_steel_bar_side.png",
+		protected = true,
+		groups = {node = 1, cracky = 1, level = 2, door = 1},
+		sounds = default.node_sound_metal_defaults(),
+		sound_open = "xpanes_steel_bar_door_open",
+		sound_close = "xpanes_steel_bar_door_close",
+		gain_open = 0.15,
+		gain_close = 0.13,
+	})
+
+	minetest.register_craft({
+		output = "xpanes:trapdoor_steel_bar",
+		recipe = {
+			{"xpanes:bar_flat", "xpanes:bar_flat"},
+			{"xpanes:bar_flat", "xpanes:bar_flat"},
+		}
+	})
+end

mods/mtg/xpanes/license.txt

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+License of source code
+----------------------
+
+The MIT License (MIT)
+Copyright (C) 2014-2016 xyz
+Copyright (C) 2014-2016 BlockMen
+Copyright (C) 2016 Auke Kok <sofar@foo-projects.org>
+Copyright (C) 2014-2016 Various Minetest Game developers and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this
+software and associated documentation files (the "Software"), to deal in the Software
+without restriction, including without limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of the Software, and to permit
+persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or
+substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
+For more details:
+https://opensource.org/licenses/MIT
+
+
+Licenses of media (textures)
+----------------------------
+
+Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
+Copyright (C) 2014-2016 xyz
+Copyright (C) 2013-2016 Gambit
+Copyright (C) 2016 paramat
+Copyright (C) 2019 TumeniNodes
+
+You are free to:
+Share — copy and redistribute the material in any medium or format.
+Adapt — remix, transform, and build upon the material for any purpose, even commercially.
+The licensor cannot revoke these freedoms as long as you follow the license terms.
+
+Under the following terms:
+
+Attribution — You must give appropriate credit, provide a link to the license, and
+indicate if changes were made. You may do so in any reasonable manner, but not in any way
+that suggests the licensor endorses you or your use.
+
+ShareAlike — If you remix, transform, or build upon the material, you must distribute
+your contributions under the same license as the original.
+
+No additional restrictions — You may not apply legal terms or technological measures that
+legally restrict others from doing anything the license permits.
+
+Notices:
+
+You do not have to comply with the license for elements of the material in the public
+domain or where your use is permitted by an applicable exception or limitation.
+No warranties are given. The license may not give you all of the permissions necessary
+for your intended use. For example, other rights such as publicity, privacy, or moral
+rights may limit how you use the material.
+
+For more details:
+http://creativecommons.org/licenses/by-sa/3.0/

mods/mtg/xpanes/locale/template.txt

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+# textdomain: xpanes
+Glass Pane=
+Obsidian Glass Pane=
+Steel Bars=
+Steel Bar Door=
+Steel Bar Trapdoor=

mods/mtg/xpanes/locale/xpanes.bg.tr

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+# textdomain: xpanes
+Glass Pane=Стъклен прозорец
+Obsidian Glass Pane=Прозорец от обсидианово стъкло
+Steel Bars=Стоманени решетки
+Steel Bar Door=Стоманени решетки за врата
+Steel Bar Trapdoor=Стоманени решетки за капак

mods/mtg/xpanes/locale/xpanes.de.tr

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+# textdomain: xpanes
+Glass Pane=Glasscheibe
+Obsidian Glass Pane=Obsidianglasscheibe
+Steel Bars=Stahlgitter
+Steel Bar Door=Stahlgittertür
+Steel Bar Trapdoor=Stahlgitterfalltür

mods/mtg/xpanes/locale/xpanes.eo.tr

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+# textdomain: xpanes
+Glass Pane=Vitra vitraĵo
+Obsidian Glass Pane=Obsidiana vitra vitraĵo
+Steel Bars=Ŝtalaj baraĵoj
+Steel Bar Door=Ŝtala baraĵa pordo
+Steel Bar Trapdoor=Ŝtala baraĵa plankpordo

mods/mtg/xpanes/locale/xpanes.es.tr

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+# textdomain: xpanes
+Glass Pane=Panel de vidrio
+Obsidian Glass Pane=Panel de vidrio de obsidiana
+Steel Bars=Barras de acero
+Steel Bar Door=Puerta de barras de acero
+Steel Bar Trapdoor=Trampilla de barras de acero

mods/mtg/xpanes/locale/xpanes.eu.tr

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+# textdomain: xpanes
+Glass Pane=Beirazko panela
+Obsidian Glass Pane=Obsidiana-beirazko panela
+Steel Bars=Altzairuzko barrak
+Steel Bar Door=Altzairu-barrazko atea
+Steel Bar Trapdoor=Altzairu-barrazko tranpola

mods/mtg/xpanes/locale/xpanes.fr.tr

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+# textdomain: xpanes
+Glass Pane=Panneau de verre
+Obsidian Glass Pane=Panneau de verre d'obsidienne
+Steel Bars=Barreaux d'acier
+Steel Bar Door=Porte en barreaux d'acier
+Steel Bar Trapdoor=Trappe en barreaux d'acier

mods/mtg/xpanes/locale/xpanes.id.tr

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+# textdomain: xpanes
+Glass Pane=Panel Kaca
+Obsidian Glass Pane=Panel Kaca Obsidian
+Steel Bars=Batang Baja
+Steel Bar Door=Pintu Batang Baja
+Steel Bar Trapdoor=Pintu Kolong Batang Baja

mods/mtg/xpanes/locale/xpanes.it.tr

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+# textdomain: xpanes
+Glass Pane=Pannello di vetro
+Obsidian Glass Pane=Pannello di vetro d'ossidiana
+Steel Bars=Sbarre d'acciaio
+Steel Bar Door=Porta con sbarre d'acciaio
+Steel Bar Trapdoor=Botola con sbarre d'acciaio

mods/mtg/xpanes/locale/xpanes.ja.tr

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+# textdomain: xpanes
+Glass Pane=板ガラス
+Obsidian Glass Pane=黒曜石の板ガラス
+Steel Bars=鉄棒の柵
+Steel Bar Door=鉄棒のドア
+Steel Bar Trapdoor=鉄棒のトラップドア

mods/mtg/xpanes/locale/xpanes.jbo.tr

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+# textdomain: xpanes
+Glass Pane=lo blaci plita
+Obsidian Glass Pane=lo je'erma'ablaci blaci plita
+Steel Bars=lo gasta garna
+Steel Bar Door=lo gasta garna vrogai
+Steel Bar Trapdoor=lo gasta garna lolvrogai

mods/mtg/xpanes/locale/xpanes.lv.tr

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+# textdomain: xpanes
+Glass Pane=Stikla panelis
+Obsidian Glass Pane=Obsidiāna stikla panelis
+Steel Bars=Tērauda režģis
+Steel Bar Door=Tērauda režģa durvis
+Steel Bar Trapdoor=Tērauda režģa lūka

mods/mtg/xpanes/locale/xpanes.ms.tr

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+# textdomain: xpanes
+Glass Pane=Kaca Tingkap
+Obsidian Glass Pane=Kaca Tingkap Obsidia
+Steel Bars=Jeriji Keluli
+Steel Bar Door=Pintu Jeriji Keluli
+Steel Bar Trapdoor=Pintu Kolong Jeriji Keluli

mods/mtg/xpanes/locale/xpanes.pl.tr

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+# textdomain: xpanes
+Glass Pane=Szyba
+Obsidian Glass Pane=Obsydianowa szyba
+Steel Bars=Stalowe kraty
+Steel Bar Door=Drzwi ze stalowych krat
+Steel Bar Trapdoor=Właz ze stalowych krat

mods/mtg/xpanes/locale/xpanes.pt_BR.tr

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+# textdomain: xpanes
+Glass Pane=Painel de Vidro
+Obsidian Glass Pane=Painel de Vidro de Obsidiana
+Steel Bars=Barras de Aço
+Steel Bar Door=Porta de Barras de Aço
+Steel Bar Trapdoor=Alçapão de Barras de Aço

mods/mtg/xpanes/locale/xpanes.ru.tr

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+# textdomain: xpanes
+Glass Pane=Стеклянная панель
+Obsidian Glass Pane=Панель из обсидианового стекла
+Steel Bars=Стальная решетка
+Steel Bar Door=Стальная решётчатая дверь
+Steel Bar Trapdoor=Стальной решётчатый люк

mods/mtg/xpanes/locale/xpanes.sk.tr

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+# textdomain: xpanes
+Glass Pane=Tabuľa skla
+Obsidian Glass Pane=Tabuľa obsidiánového skla
+Steel Bars=Oceľové mreže
+Steel Bar Door=Dvere z oceľových mreží
+Steel Bar Trapdoor=Padajúce dvere z oceľových mreží

mods/mtg/xpanes/locale/xpanes.sv.tr

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+# textdomain: xpanes
+Glass Pane=Glasruta
+Obsidian Glass Pane=Obsidianglasruta
+Steel Bars=Stålgaller
+Steel Bar Door=Stålgallerdörr
+Steel Bar Trapdoor=Stålgallerfallucka

mods/mtg/xpanes/locale/xpanes.uk.tr

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+# textdomain: xpanes
+Glass Pane=Скляна панель
+Obsidian Glass Pane=Панель з обсидіанового скла
+Steel Bars=Ґрати
+Steel Bar Door=Двері з ґратами
+Steel Bar Trapdoor=Люк з ґратами

mods/mtg/xpanes/locale/xpanes.zh_CN.tr

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+# textdomain: xpanes
+Glass Pane=玻璃窗
+Obsidian Glass Pane=黑曜石玻璃窗
+Steel Bars=钢筋
+Steel Bar Door=钢筋门
+Steel Bar Trapdoor=钢筋活板门

mods/mtg/xpanes/locale/xpanes.zh_TW.tr

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+# textdomain: xpanes
+Glass Pane=玻璃窗
+Obsidian Glass Pane=黑曜石玻璃窗
+Steel Bars=鋼筋
+Steel Bar Door=鋼筋門
+Steel Bar Trapdoor=鋼筋活板門

mods/mtg/xpanes/mod.conf

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+name = xpanes
+description = Minetest Game mod: xpanes
+depends = default
+optional_depends = doors