included the reduced and external mantanied fireflies mod for older engines

* the mt5 game already has a improved version of fireflies with timer nodes
  that hide the fireflies at day

mods/README.md

@@ -21,6 +21,7 @@ Most of those mods have mirror at http://git.mirror.org
 | dye                | https://codeberg.org/minenux/minetest-game-minetest | https://codeberg.org/minenux/minetest-game-minetest/commit/c7cb79422ba19c696966472942db6177c934838d | |
 | farming            | https://codeberg.org/minenux/minetest-mod-farming   | https://codeberg.org/minenux/minetest-mod-farming/commit/08c3a9b37bab5d8a0f5971b168aef412db5fc424 | [farming/README.md](farming/README.md) |
 | fire               | https://codeberg.org/minenux/minetest-mod-fire      | https://codeberg.org/minenux/minetest-mod-fire/commit/4e5f7ad55314bd9b126fb133cfc5a32fa58b20d2 | [fire/README.md](fire/README.md) |
+| fireflies          | https://codeberg.org/minenux/minetest-game-minetest | https://codeberg.org/minenux/minetest-game-minetest/commit/b5434409b6dda7a810f5ddc9a630970216204cbe | [fireflies/README.md](fireflies/README.md) |
 | flowers            | https://codeberg.org/minenux/minetest-game-minetest | https://codeberg.org/minenux/minetest-game-minetest/commit/c7cb79422ba19c696966472942db6177c934838d | |
 | give_initial_stuff | https://codeberg.org/minenux/minetest-game-minetest | https://codeberg.org/minenux/minetest-game-minetest/commit/c7cb79422ba19c696966472942db6177c934838d | |
 | killme             | https://codeberg.org/minenux/minetest-game-minetest | https://codeberg.org/minenux/minetest-game-minetest/commit/c7cb79422ba19c696966472942db6177c934838d | |

mods/fireflies/README.md

@@ -0,0 +1,27 @@
+Fireflies
+===
+
+Adds fireflies which can be caught in a net and placed in bottles for lighting
+
+Intro
+----
+
+This is a simple Minetest mod by Shara RedCat that adds fireflies to the world on mapgen, which can then be caught in a net and placed in bottles to provide light. Note that they only appear on newly generated map.
+
+This mod was originally adapted from the Hidden Worlds subgame to work with Minetest Game, and has since been added to Minetest Game itself. This version (at https://github.com/Ezhh/fireflies) is now maintained independently from the main Minetest Game version for the purpose of possible expansions to the mod which may or may not also be added to Minetest Game at a later time.
+
+Thanks to shivajiva for helping work through the original idea and for assisting with the code, and to all those who helped test this mod so far.
+
+![](screenshot.png)
+
+Compatibility
+----
+
+Please note that the current stable version of Minetest (0.4.16) is unable to position the fireflies above groundlevel. The mod is otherwise fully functional and can be used; but requires the current dev version of Minetest for optimal firefly placement. 
+
+License
+----
+
+Code for this mod is released under MIT (https://opensource.org/licenses/MIT).
+
+Please see license.txt for texture licenses.

mods/fireflies/depends.txt

@@ -0,0 +1,2 @@
+default
+vessels

mods/fireflies/description.txt

@@ -0,0 +1 @@
+Adds fireflies which can be caught in a net and placed in bottles for lighting.

mods/fireflies/init.lua

@@ -0,0 +1,173 @@
+
+-- firefly 
+minetest.register_node("fireflies:firefly", {
+	description = "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,
+	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_flood = function(pos, oldnode, newnode)
+		minetest.add_item(pos, "fireflies:firefly 1")
+	end
+})
+
+
+-- bug net
+minetest.register_tool("fireflies:bug_net", {
+	description = "Bug Net",
+	inventory_image = "fireflies_bugnet.png",
+	on_use = function(itemstack, player, pointed_thing)
+		if not pointed_thing or pointed_thing.type ~= "node" or 
+				minetest.is_protected(pointed_thing.under, player:get_player_name()) then
+			return
+		end
+		local node_name = minetest.get_node(pointed_thing.under).name
+		local inv = player:get_inventory()
+		if minetest.get_item_group(node_name, "catchable") == 1 then
+			minetest.set_node(pointed_thing.under, {name = "air"})
+			local stack = ItemStack(node_name.." 1")
+			local leftover = inv:add_item("main", stack)
+			if leftover:get_count() > 0 then
+				minetest.add_item(pointed_thing.under, node_name.." 1")
+			end	
+		end
+		if not minetest.setting_getbool("creative_mode") then
+			itemstack:add_wear(256)
+			return itemstack
+		end
+	end
+})
+
+minetest.register_craft( {
+	output = "fireflies:bug_net",
+	recipe = {
+		{"farming:string", "farming:string", ""},
+		{"farming:string", "farming:string", ""},
+		{"default:stick", "", ""}
+	}
+})
+
+
+-- firefly in a bottle
+minetest.register_node("fireflies:firefly_bottle", {
+	description = "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 = {snappy = 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"})
+		end
+	end
+})
+
+minetest.register_craft( {
+	output = "fireflies:firefly_bottle",
+	recipe = {
+		{"", "", ""},
+		{"", "fireflies:firefly", ""},
+		{"", "vessels:glass_bottle", ""}
+	}
+})
+
+
+-- register fireflies as decorations
+minetest.register_decoration({
+	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 = 0.002,
+	biomes = {
+		"deciduous_forest",
+		"coniferous_forest",
+		"rainforest",
+		"rainforest_swamp"
+	},
+	y_min = -1,
+	y_max = 31000,
+	decoration = "fireflies:firefly",
+})
+
+minetest.register_decoration({
+	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 = 0.002,
+	biomes = {
+		"deciduous_forest",
+		"coniferous_forest",
+		"rainforest",
+		"rainforest_swamp"
+	},
+	y_min = -1,
+	y_max = 31000,
+	decoration = "fireflies:firefly",
+})

mods/fireflies/license.txt

@@ -0,0 +1,45 @@
+
+Code License: MIT (https://opensource.org/licenses/MIT)
+By Shara RedCat
+
+---
+
+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.
+
+---
+
+
+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/mod.conf

@@ -0,0 +1,2 @@
+name = fireflies
+depends = default, vessels