Add fireflies mod

mods/fireflies/README.txt

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+Minetest Game mod: fireflies
+============================
+Adds fireflies to the world on mapgen, which can then be caught in a net and placed in
+bottles to provide light.
+
+Authors of source code
+----------------------
+Shara RedCat (MIT)
+
+Authors of media (textures)
+---------------------------
+Shara RedCat (CC BY-SA 3.0):
+  fireflies_firefly.png
+  fireflies_firefly_animated.png
+  fireflies_bugnet.png
+  fireflies_bottle.png
+  fireflies_bottle_animated.png
+
+fireflies_bugnet.png is modified from a texture by tenplus1 (CC0)
+
+fireflies_bottle.png and fireflies_bottle_animated.png are
+modified from a texture by Vanessa Ezekowitz (CC BY-SA 3.0)

mods/fireflies/init.lua

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+-- firefly/init.lua
+
+-- Load support for MT game translation.
+local S = minetest.get_translator("fireflies")
+
+-- Legacy compatibility, when pointabilities don't exist, pointable is set to true.
+local pointable_compat = not minetest.features.item_specific_pointabilities
+
+minetest.register_node("fireflies:firefly", {
+	description = S("Firefly"),
+	drawtype = "plantlike",
+	tiles = {{
+		name = "fireflies_firefly_animated.png",
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 16,
+			aspect_h = 16,
+			length = 1.5
+		},
+	}},
+	inventory_image = "fireflies_firefly.png",
+	wield_image =  "fireflies_firefly.png",
+	waving = 1,
+	paramtype = "light",
+	sunlight_propagates = true,
+	buildable_to = true,
+	walkable = false,
+	pointable = pointable_compat,
+	groups = {catchable = 1},
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.1, -0.1, -0.1, 0.1, 0.1, 0.1},
+	},
+	light_source = 6,
+	floodable = true,
+	on_construct = function(pos)
+		minetest.get_node_timer(pos):start(1)
+	end,
+	on_timer = function(pos, elapsed)
+		if minetest.get_node_light(pos) > 11 then
+			minetest.set_node(pos, {name = "fireflies:hidden_firefly"})
+		end
+		minetest.get_node_timer(pos):start(30)
+	end
+})
+
+minetest.register_node("fireflies:hidden_firefly", {
+	description = S("Hidden Firefly"),
+	drawtype = "airlike",
+	inventory_image = "fireflies_firefly.png^default_invisible_node_overlay.png",
+	wield_image =  "fireflies_firefly.png^default_invisible_node_overlay.png",
+	paramtype = "light",
+	sunlight_propagates = true,
+	walkable = false,
+	pointable = false,
+	diggable = false,
+	buildable_to = true,
+	drop = "",
+	groups = {not_in_creative_inventory = 1},
+	floodable = true,
+	on_construct = function(pos)
+		minetest.get_node_timer(pos):start(1)
+	end,
+	on_timer = function(pos, elapsed)
+		if minetest.get_node_light(pos) <= 11 then
+			minetest.set_node(pos, {name = "fireflies:firefly"})
+		end
+		minetest.get_node_timer(pos):start(30)
+	end
+})
+
+
+-- bug net
+minetest.register_tool("fireflies:bug_net", {
+	description = S("Bug Net"),
+	inventory_image = "fireflies_bugnet.png",
+	pointabilities = {nodes = {["group:catchable"] = true}},
+	tool_capabilities = {
+		groupcaps = {
+			catchable = { maxlevel = 1, uses = 256, times = { [1] = 0, [2] = 0, [3] = 0 } }
+		},
+	},
+})
+
+minetest.register_craft( {
+	output = "fireflies:bug_net",
+	recipe = {
+		{"farming:string", "farming:string"},
+		{"farming:string", "farming:string"},
+		{"group:stick", ""}
+	}
+})
+
+
+-- firefly in a bottle
+minetest.register_node("fireflies:firefly_bottle", {
+	description = S("Firefly in a Bottle"),
+	inventory_image = "fireflies_bottle.png",
+	wield_image = "fireflies_bottle.png",
+	tiles = {{
+		name = "fireflies_bottle_animated.png",
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 16,
+			aspect_h = 16,
+			length = 1.5
+		},
+	}},
+	drawtype = "plantlike",
+	paramtype = "light",
+	sunlight_propagates = true,
+	light_source = 9,
+	walkable = false,
+	groups = {vessel = 1, dig_immediate = 3, attached_node = 1},
+	selection_box = {
+		type = "fixed",
+		fixed = {-0.25, -0.5, -0.25, 0.25, 0.3, 0.25}
+	},
+	sounds = default.node_sound_glass_defaults(),
+	on_rightclick = function(pos, node, player, itemstack, pointed_thing)
+		local lower_pos = {x = pos.x, y = pos.y + 1, z = pos.z}
+		if minetest.is_protected(pos, player:get_player_name()) or
+				minetest.get_node(lower_pos).name ~= "air" then
+			return
+		end
+
+		local upper_pos = {x = pos.x, y = pos.y + 2, z = pos.z}
+		local firefly_pos
+
+		if not minetest.is_protected(upper_pos, player:get_player_name()) and
+				minetest.get_node(upper_pos).name == "air" then
+			firefly_pos = upper_pos
+		elseif not minetest.is_protected(lower_pos, player:get_player_name()) then
+			firefly_pos = lower_pos
+		end
+
+		if firefly_pos then
+			minetest.set_node(pos, {name = "vessels:glass_bottle"})
+			minetest.set_node(firefly_pos, {name = "fireflies:firefly"})
+			minetest.get_node_timer(firefly_pos):start(1)
+		end
+	end
+})
+
+minetest.register_craft( {
+	output = "fireflies:firefly_bottle",
+	recipe = {
+		{"fireflies:firefly"},
+		{"vessels:glass_bottle"}
+	}
+})
+
+
+-- register fireflies as decorations
+
+if minetest.get_mapgen_setting("mg_name") == "v6" then
+
+	minetest.register_decoration({
+		name = "fireflies:firefly_low",
+		deco_type = "simple",
+		place_on = "default:dirt_with_grass",
+		place_offset_y = 2,
+		sidelen = 80,
+		fill_ratio = 0.0002,
+		y_max = 31000,
+		y_min = 1,
+		decoration = "fireflies:hidden_firefly",
+	})
+
+	minetest.register_decoration({
+		name = "fireflies:firefly_high",
+		deco_type = "simple",
+		place_on = "default:dirt_with_grass",
+		place_offset_y = 3,
+		sidelen = 80,
+		fill_ratio = 0.0002,
+		y_max = 31000,
+		y_min = 1,
+		decoration = "fireflies:hidden_firefly",
+	})
+
+else
+
+	minetest.register_decoration({
+		name = "fireflies:firefly_low",
+		deco_type = "simple",
+		place_on = {
+			"default:dirt_with_grass",
+			"default:dirt_with_coniferous_litter",
+			"default:dirt_with_rainforest_litter",
+			"default:dirt"
+		},
+		place_offset_y = 2,
+		sidelen = 80,
+		fill_ratio = 0.0005,
+		biomes = {
+			"deciduous_forest",
+			"coniferous_forest",
+			"rainforest",
+			"rainforest_swamp"
+		},
+		y_max = 31000,
+		y_min = -1,
+		decoration = "fireflies:hidden_firefly",
+	})
+
+	minetest.register_decoration({
+		name = "fireflies:firefly_high",
+		deco_type = "simple",
+		place_on = {
+			"default:dirt_with_grass",
+			"default:dirt_with_coniferous_litter",
+			"default:dirt_with_rainforest_litter",
+			"default:dirt"
+		},
+		place_offset_y = 3,
+		sidelen = 80,
+		fill_ratio = 0.0005,
+		biomes = {
+			"deciduous_forest",
+			"coniferous_forest",
+			"rainforest",
+			"rainforest_swamp"
+		},
+		y_max = 31000,
+		y_min = -1,
+		decoration = "fireflies:hidden_firefly",
+	})
+
+end
+
+
+-- get decoration IDs
+local firefly_low = minetest.get_decoration_id("fireflies:firefly_low")
+local firefly_high = minetest.get_decoration_id("fireflies:firefly_high")
+
+minetest.set_gen_notify({decoration = true}, {firefly_low, firefly_high})
+
+-- start nodetimers
+minetest.register_on_generated(function(minp, maxp, blockseed)
+	local gennotify = minetest.get_mapgen_object("gennotify")
+	local poslist = {}
+
+	for _, pos in ipairs(gennotify["decoration#"..firefly_low] or {}) do
+		local firefly_low_pos = {x = pos.x, y = pos.y + 3, z = pos.z}
+		table.insert(poslist, firefly_low_pos)
+	end
+	for _, pos in ipairs(gennotify["decoration#"..firefly_high] or {}) do
+		local firefly_high_pos = {x = pos.x, y = pos.y + 4, z = pos.z}
+		table.insert(poslist, firefly_high_pos)
+	end
+
+	if #poslist ~= 0 then
+		for i = 1, #poslist do
+			local pos = poslist[i]
+			minetest.get_node_timer(pos):start(1)
+		end
+	end
+end)

mods/fireflies/license.txt

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+License of source code
+----------------------
+
+The MIT License (MIT)
+Copyright (c) 2018 Shara RedCat
+
+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) 2018 Shara RedCat
+
+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/fireflies/locale/fireflies.bg.tr

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+# textdomain: fireflies
+Firefly=Светулка
+Hidden Firefly=Скрита светулка
+Bug Net=Сак за насекоми
+Firefly in a Bottle=Светулка в буркан

mods/fireflies/locale/fireflies.da.tr

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+# textdomain: fireflies
+Firefly=Ildflue
+Hidden Firefly=Gemt ildflue
+Bug Net=Insektnet
+Firefly in a Bottle=Ildflue i en flaske

mods/fireflies/locale/fireflies.de.tr

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+# textdomain: fireflies
+Firefly=Glühwürmchen
+Hidden Firefly=Verborgenes Glühwürmchen
+Bug Net=Insektennetz
+Firefly in a Bottle=Glühwürmchen in einer Flasche

mods/fireflies/locale/fireflies.eo.tr

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+# textdomain: fireflies
+Firefly=Lampiro
+Hidden Firefly=Kaŝita lampiro
+Bug Net=Insekta reto
+Firefly in a Bottle=Lampiro en botelo

mods/fireflies/locale/fireflies.es.tr

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+# textdomain: fireflies
+Firefly=Luciérnaga
+Hidden Firefly=Luciérnaga oculta
+Bug Net=Red de insectos
+Firefly in a Bottle=Luciérnaga en botella

mods/fireflies/locale/fireflies.eu.tr

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+# textdomain: fireflies
+Firefly=Ipurtargia
+Hidden Firefly=Ezkutuk ipurtargi
+Bug Net=Intsektu-sarea
+Firefly in a Bottle=Ipurtargia botilan

mods/fireflies/locale/fireflies.fr.tr

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+# textdomain: fireflies
+Firefly=Luciole
+Hidden Firefly=Luciole cachée
+Bug Net=Filet à papillon
+Firefly in a Bottle=Luciole en bouteille

mods/fireflies/locale/fireflies.hu.tr

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+# textdomain: fireflies
+Firefly=Szentjánosbogár
+Hidden Firefly=Rejtett szentjánosbogár
+Bug Net=Rovarháló
+Firefly in a Bottle=Szentjánosbogár egy palackban

mods/fireflies/locale/fireflies.id.tr

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+# textdomain: fireflies
+Firefly=Kunang-Kunang
+Hidden Firefly=Kunang-Kunang Tersembunyi
+Bug Net=Jaring Serangga
+Firefly in a Bottle=Kunang-Kunang dalam Botol

mods/fireflies/locale/fireflies.it.tr

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+# textdomain: fireflies
+Firefly=Lucciola
+Hidden Firefly=Lucciola nascosta
+Bug Net=Retino
+Firefly in a Bottle=Lucciola imbottigliata

mods/fireflies/locale/fireflies.ja.tr

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+# textdomain: fireflies
+Firefly=ホタル
+Hidden Firefly=隠されたホタル
+Bug Net=虫取り網
+Firefly in a Bottle=ホタルの入った瓶

mods/fireflies/locale/fireflies.jbo.tr

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+# textdomain: fireflies
+Firefly=lo gusycinki
+Hidden Firefly=lo se mipri gusycinki
+Bug Net=lo cinki julne
+Firefly in a Bottle=lo gusycinki poi nenri lo botpi

mods/fireflies/locale/fireflies.lv.tr

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+# textdomain: fireflies
+Firefly=Jāņtārpiņš
+Hidden Firefly=Paslēpts jāņtārpiņš
+Bug Net=Ķeramtīkls
+Firefly in a Bottle=Jāņtārpiņš pudelē

mods/fireflies/locale/fireflies.ms.tr

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+# textdomain: fireflies
+Firefly=Kelip-Kelip
+Hidden Firefly=Kelip-Kelip Tersembunyi
+Bug Net=Jaring Pepijat
+Firefly in a Bottle=Kelip-Kelip dalam Botol

mods/fireflies/locale/fireflies.pl.tr

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+# textdomain: fireflies
+Firefly=Świetlik
+Hidden Firefly=Ukryty świetlik
+Bug Net=Siatka na owady
+Firefly in a Bottle=Świetlik w butelce

mods/fireflies/locale/fireflies.pt_BR.tr

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+# textdomain: fireflies
+Firefly=Vaga-lume
+Hidden Firefly=Vaga-lume escondido
+Bug Net=Rede de Insetos
+Firefly in a Bottle=Vaga-lume em uma garrafa

mods/fireflies/locale/fireflies.ru.tr

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+# textdomain: fireflies
+Firefly=Светлячок
+Hidden Firefly=Притаившийся светлячок
+Bug Net=Сачок
+Firefly in a Bottle=Светлячок в бутылке

mods/fireflies/locale/fireflies.sk.tr

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+# textdomain: fireflies
+Firefly=Svetluška
+Hidden Firefly=Skrytá svetluška
+Bug Net=Sieťka na hmyz
+Firefly in a Bottle=Svetluška vo fľaši

mods/fireflies/locale/fireflies.sv.tr

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+# textdomain: fireflies
+Firefly=Eldfluga
+Hidden Firefly=Gömd eldfluga
+Bug Net=Insektshåv
+Firefly in a Bottle=Eldfluga i en flaska

mods/fireflies/locale/fireflies.uk.tr

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+# textdomain: fireflies
+Firefly=Світляк
+Hidden Firefly=Світляк, що причаївся
+Bug Net=Сачок
+Firefly in a Bottle=Світляк у пляшці

mods/fireflies/locale/fireflies.zh_CN.tr

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+# textdomain: fireflies
+Firefly=萤火虫
+Hidden Firefly=隐藏的萤火虫
+Bug Net=虫网
+Firefly in a Bottle=放在瓶子里的萤火虫

mods/fireflies/locale/fireflies.zh_TW.tr

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+# textdomain: fireflies
+Firefly=螢火蟲
+Hidden Firefly=隱藏的螢火蟲
+Bug Net=蟲網
+Firefly in a Bottle=放在瓶子裡的螢火蟲

mods/fireflies/locale/template.txt

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+# textdomain: fireflies
+Firefly=
+Hidden Firefly=
+Bug Net=
+Firefly in a Bottle=

mods/fireflies/mod.conf

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+name = fireflies
+description = Minetest Game mod: fireflies
+depends = default, vessels