PB&J Pup.

Replace possibly trademarked artwork with royalty free and
OK for commercial use artwork.

The Pup appears by default but does not alias the Nyan Cat nodes
away. For that you will have to enable the setting. A settingtypes.txt
is provided to make that really easy. This allows people to get
an out-of-tree mod and not have their Nyan nodes disappear.

The mod can also be disabled entirely this way for those who don't
want it.

There's some eatser eggs in here as well. Instead of making the
nodes burnable, they are edible, and make you bark and howl. And
perhaps something else too.

mods/nyancat/README.txt

-Minetest Game mod: nyancat
-==========================
-See license.txt for license information.
-
-Authors of source code
-----------------------
-Originally by celeron55, Perttu Ahola <celeron55@gmail.com> (LGPL 2.1)
-Various Minetest developers and contributors (LGPL 2.1)
-
-Authors of media files
-----------------------
-VanessaE (CC BY-SA 3.0):
-  nyancat_front.png
-  nyancat_back.png
-  nyancat_side.png
-  nyancat_rainbow.png

mods/nyancat/init.lua

-minetest.register_node("nyancat:nyancat", {
-	description = "Nyan Cat",
-	tiles = {"nyancat_side.png", "nyancat_side.png", "nyancat_side.png",
-		"nyancat_side.png", "nyancat_back.png", "nyancat_front.png"},
-	paramtype = "light",
-	light_source = default.LIGHT_MAX,
-	paramtype2 = "facedir",
-	groups = {cracky = 2},
-	is_ground_content = false,
-	legacy_facedir_simple = true,
-	sounds = default.node_sound_defaults(),
-})
-
-minetest.register_node("nyancat:nyancat_rainbow", {
-	description = "Nyan Cat Rainbow",
-	tiles = {
-		"nyancat_rainbow.png^[transformR90",
-		"nyancat_rainbow.png^[transformR90",
-		"nyancat_rainbow.png"
-	},
-	paramtype = "light",
-	light_source = default.LIGHT_MAX,
-	paramtype2 = "facedir",
-	groups = {cracky = 2},
-	is_ground_content = false,
-	sounds = default.node_sound_defaults(),
-})
-
-minetest.register_craft({
-	type = "fuel",
-	recipe = "nyancat:nyancat",
-	burntime = 1,
-})
-
-minetest.register_craft({
-	type = "fuel",
-	recipe = "nyancat:nyancat_rainbow",
-	burntime = 1,
-})
-
-nyancat = {}
-
-function nyancat.place(pos, facedir, length)
-	if facedir > 3 then
-		facedir = 0
-	end
-	local tailvec = minetest.facedir_to_dir(facedir)
-	local p = {x = pos.x, y = pos.y, z = pos.z}
-	minetest.set_node(p, {name = "nyancat:nyancat", param2 = facedir})
-	for i = 1, length do
-		p.x = p.x + tailvec.x
-		p.z = p.z + tailvec.z
-		minetest.set_node(p, {name = "nyancat:nyancat_rainbow", param2 = facedir})
-	end
-end
-
-function nyancat.generate(minp, maxp, seed)
-	local height_min = -31000
-	local height_max = -32
-	if maxp.y < height_min or minp.y > height_max then
-		return
-	end
-	local y_min = math.max(minp.y, height_min)
-	local y_max = math.min(maxp.y, height_max)
-	local volume = (maxp.x - minp.x + 1) * (y_max - y_min + 1) * (maxp.z - minp.z + 1)
-	local pr = PseudoRandom(seed + 9324342)
-	local max_num_nyancats = math.floor(volume / (16 * 16 * 16))
-	for i = 1, max_num_nyancats do
-		if pr:next(0, 1000) == 0 then
-			local x0 = pr:next(minp.x, maxp.x)
-			local y0 = pr:next(minp.y, maxp.y)
-			local z0 = pr:next(minp.z, maxp.z)
-			local p0 = {x = x0, y = y0, z = z0}
-			nyancat.place(p0, pr:next(0, 3), pr:next(3, 15))
-		end
-	end
-end
-
-minetest.register_on_generated(function(minp, maxp, seed)
-	nyancat.generate(minp, maxp, seed)
-end)
-
--- Legacy
-minetest.register_alias("default:nyancat", "nyancat:nyancat")
-minetest.register_alias("default:nyancat_rainbow", "nyancat:nyancat_rainbow")
-minetest.register_alias("nyancat", "nyancat:nyancat")
-minetest.register_alias("nyancat_rainbow", "nyancat:nyancat_rainbow")
-default.make_nyancat = nyancat.place
-default.generate_nyancats = nyancat.generate

mods/nyancat/license.txt

-License of source code
-----------------------
-
-GNU Lesser General Public License, version 2.1
-Copyright (C) 2011-2016 celeron55, Perttu Ahola <celeron55@gmail.com>
-Copyright (C) 2012-2016 Various Minetest developers and contributors
-
-This program 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 program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
-without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-See the GNU Lesser General Public License for more details:
-https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
-
-
-Licenses of media (textures)
-----------------------------
-
-Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
-Copyright (C) 2012-2016 VanessaE
-
-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/pbj_pup/init.lua

+
+--[[
+
+  Minetest's official Peanut Butter & Jelly Pup mod
+
+]]--
+
+local enable = minetest.setting_getbool("pbj_pup_enable")
+if enable == false then
+	return
+end
+
+local function howl(ttl, player)
+	if not player then
+		return
+	end
+	ttl = ttl - 15
+	if ttl < 0 then
+		return
+	end
+
+	minetest.sound_play("pbj_pup_howl", {object = player, loop = false})
+	minetest.do_item_eat(5, nil, ItemStack("pbj_pup:pbj_pup"), player, nil)
+
+	minetest.after(15, howl, ttl, player)
+end
+
+--
+-- nodes
+--
+minetest.register_node("pbj_pup:pbj_pup", {
+	description = "PB&J Pup",
+	tiles = {
+		"pbj_pup_sides.png",
+		"pbj_pup_jelly.png",
+		"pbj_pup_sides.png",
+		"pbj_pup_sides.png",
+		"pbj_pup_back.png",
+		"pbj_pup_front.png"
+	},
+	paramtype = "light",
+	light_source = default.LIGHT_MAX,
+	paramtype2 = "facedir",
+	groups = {cracky = 2},
+	is_ground_content = false,
+	legacy_facedir_simple = true,
+	sounds = default.node_sound_defaults(),
+	stack_max = 1,
+	on_use = function(itemstack, user, pointed_thing)
+		howl(300, user)
+		itemstack:take_item()
+		return itemstack
+	end,
+})
+
+minetest.register_node("pbj_pup:pbj_pup_candies", {
+	description = "PB&J Pup Candies",
+	tiles = {{
+		name = "pbj_pup_candies_animated.png",
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 16,
+			aspect_h = 16,
+			length = 1.6
+		}
+	}},
+	paramtype = "light",
+	light_source = default.LIGHT_MAX,
+	paramtype2 = "facedir",
+	groups = {cracky = 2},
+	is_ground_content = false,
+	stack_max = 5,
+	sounds = default.node_sound_defaults(),
+	on_use = function(itemstack, user, pointed_thing)
+		minetest.do_item_eat(5, nil, itemstack, user, pointed_thing)
+		minetest.sound_play("pbj_pup_barks", {object = user, loop = false})
+		itemstack:take_item()
+		return itemstack
+	end,
+})
+
+--
+-- mapgen
+--
+local gen = minetest.setting_getbool("pbj_pup_generate")
+if gen == nil or gen then
+	local function place(pos, facedir, length)
+		if facedir > 3 then
+			facedir = 0
+		end
+		local tailvec = minetest.facedir_to_dir(facedir)
+		local p = {x = pos.x, y = pos.y, z = pos.z}
+		minetest.set_node(p, {name = "pbj_pup:pbj_pup", param2 = facedir})
+		for i = 1, length do
+			p.x = p.x + tailvec.x
+			p.z = p.z + tailvec.z
+			minetest.set_node(p, {name = "pbj_pup:pbj_pup_candies", param2 = facedir})
+		end
+	end
+
+	local function generate(minp, maxp, seed)
+		local height_min = -31000
+		local height_max = -32
+		if maxp.y < height_min or minp.y > height_max then
+			return
+		end
+		local y_min = math.max(minp.y, height_min)
+		local y_max = math.min(maxp.y, height_max)
+		local volume = (maxp.x - minp.x + 1) * (y_max - y_min + 1) * (maxp.z - minp.z + 1)
+		local pr = PseudoRandom(seed + 9324342)
+		local max_num = math.floor(volume / (16 * 16 * 16))
+		for i = 1, max_num do
+			if pr:next(0, 1000) == 0 then
+				local x0 = pr:next(minp.x, maxp.x)
+				local y0 = pr:next(minp.y, maxp.y)
+				local z0 = pr:next(minp.z, maxp.z)
+				local p0 = {x = x0, y = y0, z = z0}
+				place(p0, pr:next(0, 3), pr:next(3, 15))
+			end
+		end
+	end
+
+	minetest.register_on_generated(generate)
+end
+--
+-- compat
+--
+
+if minetest.setting_getbool("pbj_pup_alias_nyancat") then
+	minetest.register_alias("default:nyancat", "pbj_pup:pbj_pup")
+	minetest.register_alias("default:nyancat_rainbow","pbj_pup:pbj_pup_candies")
+	minetest.register_alias("nyancat", "pbj_pup:pbj_pup")
+	minetest.register_alias("nyancat_rainbow", "pbj_pup:pbj_pup_candies")
+	minetest.register_alias("nyancat:nyancat", "pbj_pup:pbj_pup")
+	minetest.register_alias("nyancat:nyancat_rainbow", "pbj_pup:pbj_pup_candies")
+end

mods/pbj_pup/license.md

+
+## PB&J Pup
+
+PB&J Pup is a parody on the "Nyan Cat" TM toasted poptart meme.
+
+
+## License and Copyright
+
+(C) 2017 Vanessa Ezekowitz, Auke Kok, celeron55
+
+ * All Code: LGPL-2.1+
+ * All Images: CC-BY-4.0
+
+
+## Sounds
+
+ * `pbj_pup_barks.ogg`:
+   Artist: Tomlija <tshesound@gmail.com>
+   License: CC-BY-3.0
+   Url: http://freesound.org/people/Tomlija/sounds/97392/
+
+ * `pbj_pup_howl.ogg`:
+   Copyright 2013 Iwan Gabovitch (qubodup)
+   License: CC-BY-3.0
+   Url: http://freesound.org/people/qubodup/sounds/193394/
+

settingtypes.txt

@@ -43,3 +43,13 @@ share_bones_time (Bone share time) int 1200 0
 
 #    Replaces old stairs with new ones. Only required for older worlds.
 enable_stairs_replace_abm (Replace old stairs) bool false
+
+#    Enable the PB&J Pup mod entirely
+pbj_pup_enable (Enable PB&J pup mod) bool true
+
+#    Generate PB&J Pup blocks in the world
+pbj_pup_generate (Generate PBJ Pup blocks in world) bool true
+
+#    Let the PB&J Pup mod replace Nyan Cat nodes
+pbj_pup_alias_nyancat (Replace Nyan Cat blocks) bool false
+