Change license to LGPLv2/later, as agreed major contributors

README.txt

@@ -8,36 +8,43 @@ in the Minetest Engine.
 The Minetest Engine can be found in:
   https://github.com/celeron55/minetest/
 
-This has been tested to work with the version tagged 0.4.dev-20120326.
+Compatibility
+--------------
+The minetest_game github master HEAD is generally compatible with the github
+master HEAD of minetest.
+
+Additionally, when the minetest engine is tagged to be a certain version (eg.
+0.4.dev-20120326), minetest_game is tagged with the version too.
+
+When stable releases are made, minetest_game is packaged and made available in
+  https://github.com/celeron55/minetest_game/downloads
+and in case the repository has grown too much, it may be reset. In that sense,
+this is not a "real" git repository. (Package maintainers please note!)
 
 License of source code
 ----------------------
 Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+See README.txt in each mod directory for information about other authors.
 
 This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+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 General Public License for more details.
+GNU Lesser General Public License for more details.
 
-You should have received a copy of the GNU General Public License along
+You should have received a copy of the GNU Lesser General Public License along
 with this program; if not, write to the Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 License of media (textures and sounds)
 --------------------------------------
 Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+See README.txt in each mod directory for information about other authors.
 
 Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)                                 
 http://creativecommons.org/licenses/by-sa/3.0/
   
-Authors of media files
------------------------
-Everything not mentioned in here - Perttu Ahola <celeron55@gmail.com>
-default_grass_footstep.{1,2,3}.ogg - Modified versions of sounds by kddekadenz/Dogers
-default_dig_crumbly.{1,2}.ogg - Modified versions of sounds by kddekadenz/Dogers
-

mods/bucket/README.txt

@@ -0,0 +1,26 @@
+Minetest 0.4 mod: bucket
+=========================
+
+License of source code:
+-----------------------
+Copyright (C) 2011-2012 Kahrl <kahrl@gmx.net>
+Copyright (C) 2011-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+http://www.gnu.org/licenses/gpl-2.0.html
+
+License of media (textures and sounds)
+--------------------------------------
+Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)                                 
+http://creativecommons.org/licenses/by-sa/3.0/
+
+Authors of media files
+-----------------------
+Everything not listed in here:
+Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+

mods/bucket/init.lua

@@ -1,5 +1,5 @@
--- bucket (Minetest 0.4 mod)
--- A bucket, which can pick up water and lava
+-- Minetest 0.4 mod: bucket
+-- See README.txt for licensing and other information.
 
 minetest.register_alias("bucket", "bucket:bucket_empty")
 minetest.register_alias("bucket_water", "bucket:bucket_water")

mods/default/README.txt

@@ -0,0 +1,64 @@
+Minetest 0.4 mod: default
+==========================
+
+License of source code:
+-----------------------
+Copyright (C) 2011-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+http://www.gnu.org/licenses/gpl-2.0.html
+
+License of media (textures and sounds)
+--------------------------------------
+Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)                                 
+http://creativecommons.org/licenses/by-sa/3.0/
+
+Authors of media files
+-----------------------
+Everything not listed in here:
+Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+Originating from work by kddekadenz/Dogers:
+  default_grass_footstep.{1,2,3}.ogg
+  default_dig_crumbly.{1,2}.ogg
+
+Cisoun's WTFPL texture pack:
+  default_chest_front.png
+  default_chest_lock.png
+  default_chest_side.png
+  default_chest_top.png
+  default_cobble.png
+  default_dirt.png
+  default_grass.png
+  default_grass_side.png
+  default_jungletree.png
+  default_jungletree_top.png
+  default_lava.png
+  default_leaves.png
+  default_mossycobble.png
+  default_sand.png
+  default_sapling.png
+  default_sign_wall.png
+  default_stone.png
+  default_tool_mesepick.png
+  default_tool_steelpick.png
+  default_tool_steelshovel.png
+  default_tool_steelsword.png
+  default_tool_stonepick.png
+  default_tool_stoneshovel.png
+  default_tool_woodpick.png
+  default_tool_woodshovel.png
+  default_tree.png
+  default_tree_top.png
+  default_water.png
+
+Originating from G4JC's Almost MC Texture Pack:
+  default_wood.png
+  default_torch.png
+  default_torch_on_ceiling.png
+  default_torch_on_floor.png
+  

mods/default/leafdecay.lua

@@ -0,0 +1,92 @@
+-- minetest/default/leafdecay.lua
+
+-- To enable leaf decay for a node, add it to the "leafdecay" group.
+--
+-- The rating of the group determines how far from a node in the group "tree"
+-- the node can be without decaying.
+--
+-- If param2 of the node is ~= 0, the node will always be preserved. Thus, if
+-- the player places a node of that kind, you will want to set param2=1 or so.
+
+default.leafdecay_trunk_cache = {}
+default.leafdecay_enable_cache = true
+-- Spread the load of finding trunks
+default.leafdecay_trunk_find_allow_accumulator = 0
+
+minetest.register_globalstep(function(dtime)
+	local finds_per_second = 5000
+	default.leafdecay_trunk_find_allow_accumulator =
+			math.floor(dtime * finds_per_second)
+end)
+
+minetest.register_abm({
+	nodenames = {"group:leafdecay"},
+	neighbors = {"air", "group:liquid"},
+	-- A low interval and a high inverse chance spreads the load
+	interval = 2,
+	chance = 5,
+
+	action = function(p0, node, _, _)
+		--print("leafdecay ABM at "..p0.x..", "..p0.y..", "..p0.z..")")
+		local do_preserve = false
+		local d = minetest.registered_nodes[node.name].groups.leafdecay
+		if not d or d == 0 then
+			--print("not groups.leafdecay")
+			return
+		end
+		local n0 = minetest.env:get_node(p0)
+		if n0.param2 ~= 0 then
+			--print("param2 ~= 0")
+			return
+		end
+		local p0_hash = nil
+		if default.leafdecay_enable_cache then
+			p0_hash = minetest.hash_node_position(p0)
+			local trunkp = default.leafdecay_trunk_cache[p0_hash]
+			if trunkp then
+				local n = minetest.env:get_node(trunkp)
+				local reg = minetest.registered_nodes[n.name]
+				-- Assume ignore is a trunk, to make the thing work at the border of the active area
+				if n.name == "ignore" or (reg.groups.tree and reg.groups.tree ~= 0) then
+					--print("cached trunk still exists")
+					return
+				end
+				--print("cached trunk is invalid")
+				-- Cache is invalid
+				table.remove(default.leafdecay_trunk_cache, p0_hash)
+			end
+		end
+		if default.leafdecay_trunk_find_allow_accumulator <= 0 then
+			return
+		end
+		default.leafdecay_trunk_find_allow_accumulator =
+				default.leafdecay_trunk_find_allow_accumulator - 1
+		-- Assume ignore is a trunk, to make the thing work at the border of the active area
+		local p1 = minetest.env:find_node_near(p0, d, {"ignore", "group:tree"})
+		if p1 then
+			do_preserve = true
+			if default.leafdecay_enable_cache then
+				--print("caching trunk")
+				-- Cache the trunk
+				default.leafdecay_trunk_cache[p0_hash] = p1
+			end
+		end
+		if not do_preserve then
+			-- Drop stuff other than the node itself
+			itemstacks = minetest.get_node_drops(n0.name)
+			for _, itemname in ipairs(itemstacks) do
+				if itemname ~= n0.name then
+					local p_drop = {
+						x = p0.x - 0.5 + math.random(),
+						y = p0.y - 0.5 + math.random(),
+						z = p0.z - 0.5 + math.random(),
+					}
+					minetest.env:add_item(p_drop, itemname)
+				end
+			end
+			-- Remove node
+			minetest.env:remove_node(p0)
+		end
+	end
+})
+

mods/default/mapgen.lua

@@ -0,0 +1,275 @@
+-- minetest/default/mapgen.lua
+
+--
+-- Aliases for map generator outputs
+--
+
+minetest.register_alias("mapgen_air", "air")
+minetest.register_alias("mapgen_stone", "default:stone")
+minetest.register_alias("mapgen_tree", "default:tree")
+minetest.register_alias("mapgen_leaves", "default:leaves")
+minetest.register_alias("mapgen_apple", "default:apple")
+minetest.register_alias("mapgen_water_source", "default:water_source")
+minetest.register_alias("mapgen_dirt", "default:dirt")
+minetest.register_alias("mapgen_sand", "default:sand")
+minetest.register_alias("mapgen_gravel", "default:gravel")
+minetest.register_alias("mapgen_clay", "default:clay")
+minetest.register_alias("mapgen_lava_source", "default:lava_source")
+minetest.register_alias("mapgen_cobble", "default:cobble")
+minetest.register_alias("mapgen_mossycobble", "default:mossycobble")
+minetest.register_alias("mapgen_dirt_with_grass", "default:dirt_with_grass")
+minetest.register_alias("mapgen_junglegrass", "default:junglegrass")
+minetest.register_alias("mapgen_stone_with_coal", "default:stone_with_coal")
+minetest.register_alias("mapgen_stone_with_iron", "default:stone_with_iron")
+minetest.register_alias("mapgen_mese", "default:mese")
+minetest.register_alias("mapgen_desert_sand", "default:desert_sand")
+minetest.register_alias("mapgen_desert_stone", "default:desert_stone")
+
+--
+-- Ore generation
+--
+
+local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, chunk_size, ore_per_chunk, height_min, height_max)
+	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)
+	local num_chunks = math.floor(chunks_per_volume * volume)
+	local inverse_chance = math.floor(chunk_size*chunk_size*chunk_size / ore_per_chunk)
+	--print("generate_ore num_chunks: "..dump(num_chunks))
+	for i=1,num_chunks do
+		local y0 = pr:next(y_min, y_max-chunk_size+1)
+		if y0 >= height_min and y0 <= height_max then
+			local x0 = pr:next(minp.x, maxp.x-chunk_size+1)
+			local z0 = pr:next(minp.z, maxp.z-chunk_size+1)
+			local p0 = {x=x0, y=y0, z=z0}
+			for x1=0,chunk_size-1 do
+			for y1=0,chunk_size-1 do
+			for z1=0,chunk_size-1 do
+				if pr:next(1,inverse_chance) == 1 then
+					local x2 = x0+x1
+					local y2 = y0+y1
+					local z2 = z0+z1
+					local p2 = {x=x2, y=y2, z=z2}
+					if minetest.env:get_node(p2).name == wherein then
+						minetest.env:set_node(p2, {name=name})
+					end
+				end
+			end
+			end
+			end
+		end
+	end
+	--print("generate_ore done")
+end
+
+function default.make_papyrus(pos, size)
+	for y=0,size-1 do
+		local p = {x=pos.x, y=pos.y+y, z=pos.z}
+		minetest.env:set_node(p, {name="default:papyrus"})
+	end
+end
+
+function default.make_cactus(pos, size)
+	for y=0,size-1 do
+		local p = {x=pos.x, y=pos.y+y, z=pos.z}
+		minetest.env:set_node(p, {name="default:cactus"})
+	end
+end
+
+-- facedir: 0/1/2/3 (head node facedir value)
+-- length: length of rainbow tail
+function default.make_nyancat(pos, facedir, length)
+	local tailvec = {x=0, y=0, z=0}
+	if facedir == 0 then
+		tailvec.z = 1
+	elseif facedir == 1 then
+		tailvec.x = 1
+	elseif facedir == 2 then
+		tailvec.z = -1
+	elseif facedir == 3 then
+		tailvec.x = -1
+	else
+		print("default.make_nyancat(): Invalid facedir: "+dump(facedir))
+		facedir = 0
+		tailvec.z = 1
+	end
+	local p = {x=pos.x, y=pos.y, z=pos.z}
+	minetest.env:set_node(p, {name="default:nyancat", param2=facedir})
+	for i=1,length do
+		p.x = p.x + tailvec.x
+		p.z = p.z + tailvec.z
+		minetest.env:set_node(p, {name="default:nyancat_rainbow"})
+	end
+end
+
+function generate_nyancats(seed, minp, maxp)
+	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}
+			default.make_nyancat(p0, pr:next(0,3), pr:next(3,15))
+		end
+	end
+end
+
+minetest.register_on_generated(function(minp, maxp, seed)
+	-- Generate regular ores
+	generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+0, 1/8/8/8,    3, 8, -31000,  64)
+	generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/12/12/12, 2, 3,    -15,   2)
+	generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+2, 1/9/9/9,    3, 5,    -63, -16)
+	generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+3, 1/7/7/7,    3, 5, -31000, -64)
+	generate_ore("default:mese",            "default:stone", minp, maxp, seed+4, 1/16/16/16, 2, 3,   -127, -64)
+	generate_ore("default:mese",            "default:stone", minp, maxp, seed+5, 1/9/9/9,    3, 5, -31000,-128)
+	
+	generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+7, 1/24/24/24, 6,27, -31000,  0)
+	generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+6, 1/24/24/24, 6,27, -31000, -64)
+
+	if maxp.y >= 2 and minp.y <= 0 then
+		-- Generate clay
+		-- Assume X and Z lengths are equal
+		local divlen = 4
+		local divs = (maxp.x-minp.x)/divlen+1;
+		for divx=0+1,divs-1-1 do
+		for divz=0+1,divs-1-1 do
+			local cx = minp.x + math.floor((divx+0.5)*divlen)
+			local cz = minp.z + math.floor((divz+0.5)*divlen)
+			if minetest.env:get_node({x=cx,y=1,z=cz}).name == "default:water_source" and
+					minetest.env:get_node({x=cx,y=0,z=cz}).name == "default:sand" then
+				local is_shallow = true
+				local num_water_around = 0
+				if minetest.env:get_node({x=cx-divlen*2,y=1,z=cz+0}).name == "default:water_source" then
+					num_water_around = num_water_around + 1 end
+				if minetest.env:get_node({x=cx+divlen*2,y=1,z=cz+0}).name == "default:water_source" then
+					num_water_around = num_water_around + 1 end
+				if minetest.env:get_node({x=cx+0,y=1,z=cz-divlen*2}).name == "default:water_source" then
+					num_water_around = num_water_around + 1 end
+				if minetest.env:get_node({x=cx+0,y=1,z=cz+divlen*2}).name == "default:water_source" then
+					num_water_around = num_water_around + 1 end
+				if num_water_around >= 2 then
+					is_shallow = false
+				end	
+				if is_shallow then
+					for x1=-divlen,divlen do
+					for z1=-divlen,divlen do
+						if minetest.env:get_node({x=cx+x1,y=0,z=cz+z1}).name == "default:sand" then
+							minetest.env:set_node({x=cx+x1,y=0,z=cz+z1}, {name="default:clay"})
+						end
+					end
+					end
+				end
+			end
+		end
+		end
+		-- Generate papyrus
+		local perlin1 = minetest.env:get_perlin(354, 3, 0.7, 100)
+		-- Assume X and Z lengths are equal
+		local divlen = 8
+		local divs = (maxp.x-minp.x)/divlen+1;
+		for divx=0,divs-1 do
+		for divz=0,divs-1 do
+			local x0 = minp.x + math.floor((divx+0)*divlen)
+			local z0 = minp.z + math.floor((divz+0)*divlen)
+			local x1 = minp.x + math.floor((divx+1)*divlen)
+			local z1 = minp.z + math.floor((divz+1)*divlen)
+			-- Determine papyrus amount from perlin noise
+			local papyrus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 45 - 20)
+			-- Find random positions for papyrus based on this random
+			local pr = PseudoRandom(seed+1)
+			for i=0,papyrus_amount do
+				local x = pr:next(x0, x1)
+				local z = pr:next(z0, z1)
+				if minetest.env:get_node({x=x,y=1,z=z}).name == "default:dirt_with_grass" and
+						minetest.env:find_node_near({x=x,y=1,z=z}, 1, "default:water_source") then
+					default.make_papyrus({x=x,y=2,z=z}, pr:next(2, 4))
+				end
+			end
+		end
+		end
+		-- Generate cactuses
+		local perlin1 = minetest.env:get_perlin(230, 3, 0.6, 100)
+		-- Assume X and Z lengths are equal
+		local divlen = 16
+		local divs = (maxp.x-minp.x)/divlen+1;
+		for divx=0,divs-1 do
+		for divz=0,divs-1 do
+			local x0 = minp.x + math.floor((divx+0)*divlen)
+			local z0 = minp.z + math.floor((divz+0)*divlen)
+			local x1 = minp.x + math.floor((divx+1)*divlen)
+			local z1 = minp.z + math.floor((divz+1)*divlen)
+			-- Determine cactus amount from perlin noise
+			local cactus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 6 - 3)
+			-- Find random positions for cactus based on this random
+			local pr = PseudoRandom(seed+1)
+			for i=0,cactus_amount do
+				local x = pr:next(x0, x1)
+				local z = pr:next(z0, z1)
+				-- Find ground level (0...15)
+				local ground_y = nil
+				for y=30,0,-1 do
+					if minetest.env:get_node({x=x,y=y,z=z}).name ~= "air" then
+						ground_y = y
+						break
+					end
+				end
+				-- If desert sand, make cactus
+				if ground_y and minetest.env:get_node({x=x,y=ground_y,z=z}).name == "default:desert_sand" then
+					default.make_cactus({x=x,y=ground_y+1,z=z}, pr:next(3, 4))
+				end
+			end
+		end
+		end
+		-- Generate dry shrubs
+		local perlin1 = minetest.env:get_perlin(329, 3, 0.6, 100)
+		-- Assume X and Z lengths are equal
+		local divlen = 16
+		local divs = (maxp.x-minp.x)/divlen+1;
+		for divx=0,divs-1 do
+		for divz=0,divs-1 do
+			local x0 = minp.x + math.floor((divx+0)*divlen)
+			local z0 = minp.z + math.floor((divz+0)*divlen)
+			local x1 = minp.x + math.floor((divx+1)*divlen)
+			local z1 = minp.z + math.floor((divz+1)*divlen)
+			-- Determine cactus amount from perlin noise
+			local cactus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 5 + 0)
+			-- Find random positions for cactus based on this random
+			local pr = PseudoRandom(seed+1)
+			for i=0,cactus_amount do
+				local x = pr:next(x0, x1)
+				local z = pr:next(z0, z1)
+				-- Find ground level (0...15)
+				local ground_y = nil
+				for y=30,0,-1 do
+					if minetest.env:get_node({x=x,y=y,z=z}).name ~= "air" then
+						ground_y = y
+						break
+					end
+				end
+				-- If desert sand, make cactus
+				if ground_y and minetest.env:get_node({x=x,y=ground_y,z=z}).name == "default:desert_sand" then
+					minetest.env:set_node({x=x,y=ground_y+1,z=z}, {name="default:dry_shrub"})
+				end
+			end
+		end
+		end
+	end
+
+	-- Generate nyan cats
+	generate_nyancats(seed, minp, maxp)
+end)
+

mods/doors/README.txt

@@ -0,0 +1,43 @@
+Minetest 0.4 mod: doors
+========================
+
+License of source code:
+-----------------------
+Original license text:
+--    (c) 2011 Fernando Zapata
+--    Code licensed under GNU GPLv3
+--    Content licensed under CC BY-SA 3.0
+--    2012-01-08    11:03:57
+
+There has been unsuccesful attempts to contact the original author. Thus,
+based on the intentions of the author, it is assumed that this code is
+distributable and modifiable under LGPLv2+later, under which Minetest is
+distributed.
+
+Modifications:
+  Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+http://www.gnu.org/licenses/gpl-2.0.html
+
+License of media (textures and sounds)
+--------------------------------------
+Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)                                 
+http://creativecommons.org/licenses/by-sa/3.0/
+
+Authors of media files
+-----------------------
+Everything not listed in here:
+Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+From the original zlpdoors mod by Fernando Zapata:
+  door_wood_a.png
+  door_wood_a_r.png
+  door_wood_b.png
+  door_wood_b_r.png
+  door_wood.png
+  

mods/doors/depends.txt

@@ -1,2 +1 @@
 default
-

mods/doors/init.lua

@@ -0,0 +1,205 @@
+-- Minetest 0.4 mod: doors
+-- See README.txt for licensing and other information.
+--------------------------------------------------------------------------------
+
+local WALLMX = 3
+local WALLMZ = 5
+local WALLPX = 2
+local WALLPZ = 4
+
+--------------------------------------------------------------------------------
+
+minetest.register_alias('door', 'doors:door_wood')
+minetest.register_alias('door_wood', 'doors:door_wood')
+
+minetest.register_node( 'doors:door_wood', {
+	description         = 'Wooden Door',
+	drawtype            = 'signlike',
+	tile_images         = { 'door_wood.png' },
+	inventory_image     = 'door_wood.png',
+	wield_image         = 'door_wood.png',
+	paramtype2          = 'wallmounted',
+	selection_box       = { type = 'wallmounted' },
+	groups              = { choppy=2, dig_immediate=2 },
+})
+
+minetest.register_craft( {
+	output              = 'doors:door_wood',
+	recipe = {
+		{ 'default:wood', 'default:wood' },
+		{ 'default:wood', 'default:wood' },
+		{ 'default:wood', 'default:wood' },
+	},
+})
+
+minetest.register_craft({
+	type = 'fuel',
+	recipe = 'doors:door_wood',
+	burntime = 30,
+})
+
+minetest.register_node( 'doors:door_wood_a_c', {
+	Description         = 'Top Closed Door',
+	drawtype            = 'signlike',
+	tile_images         = { 'door_wood_a.png' },
+	inventory_image     = 'door_wood_a.png',
+	paramtype           = 'light',
+	paramtype2          = 'wallmounted',
+	walkable            = true,
+	selection_box       = { type = "wallmounted", },
+	groups              = { choppy=2, dig_immediate=2 },
+	legacy_wallmounted  = true,
+	drop                = 'doors:door_wood',
+})
+
+minetest.register_node( 'doors:door_wood_b_c', {
+	Description         = 'Bottom Closed Door',
+	drawtype            = 'signlike',
+	tile_images         = { 'door_wood_b.png' },
+	inventory_image     = 'door_wood_b.png',
+	paramtype           = 'light',
+	paramtype2          = 'wallmounted',
+	walkable            = true,
+	selection_box       = { type = "wallmounted", },
+	groups              = { choppy=2, dig_immediate=2 },
+	legacy_wallmounted  = true,
+	drop                = 'doors:door_wood',
+})
+
+minetest.register_node( 'doors:door_wood_a_o', {
+	Description         = 'Top Open Door',
+	drawtype            = 'signlike',
+	tile_images         = { 'door_wood_a_r.png' },
+	inventory_image     = 'door_wood_a_r.png',
+	paramtype           = 'light',
+	paramtype2          = 'wallmounted',
+	walkable            = false,
+	selection_box       = { type = "wallmounted", },
+	groups              = { choppy=2, dig_immediate=2 },
+	legacy_wallmounted  = true,
+	drop                = 'doors:door_wood',
+})
+
+minetest.register_node( 'doors:door_wood_b_o', {
+	Description         = 'Bottom Open Door',
+	drawtype            = 'signlike',
+	tile_images         = { 'door_wood_b_r.png' },
+	inventory_image     = 'door_wood_b_r.png',
+	paramtype           = 'light',
+	paramtype2          = 'wallmounted',
+	walkable            = false,
+	selection_box       = { type = "wallmounted", },
+	groups              = { choppy=2, dig_immediate=2 },
+	legacy_wallmounted  = true,
+	drop                = 'doors:door_wood',
+})
+
+--------------------------------------------------------------------------------
+
+local round = function( n )
+	if n >= 0 then
+		return math.floor( n + 0.5 )
+	else
+		return math.ceil( n - 0.5 )
+	end
+end
+
+local on_door_placed = function( pos, node, placer )
+	if node.name ~= 'doors:door_wood' then return end
+
+	upos = { x = pos.x, y = pos.y - 1, z = pos.z }
+	apos = { x = pos.x, y = pos.y + 1, z = pos.z }
+	und = minetest.env:get_node( upos )
+	abv = minetest.env:get_node( apos )
+
+	dir = placer:get_look_dir()
+
+	if     round( dir.x ) == 1  then
+		newparam = WALLMX
+	elseif round( dir.x ) == -1 then
+		newparam = WALLPX
+	elseif round( dir.z ) == 1  then
+		newparam = WALLMZ
+	elseif round( dir.z ) == -1 then
+		newparam = WALLPZ
+	end
+
+	if und.name == 'air' then
+		minetest.env:add_node( pos,  { name = 'doors:door_wood_a_c', param2 = newparam } )
+		minetest.env:add_node( upos, { name = 'doors:door_wood_b_c', param2 = newparam } )
+	elseif abv.name == 'air' then
+		minetest.env:add_node( pos,  { name = 'doors:door_wood_b_c', param2 = newparam } )
+		minetest.env:add_node( apos, { name = 'doors:door_wood_a_c', param2 = newparam } )
+	else
+		minetest.env:remove_node( pos )
+		placer:get_inventory():add_item( "main", 'doors:door_wood' )
+		minetest.chat_send_player( placer:get_player_name(), 'not enough space' )
+	end
+end
+
+local on_door_punched = function( pos, node, puncher )
+	if string.find( node.name, 'doors:door_wood' ) == nil then return end
+
+	upos = { x = pos.x, y = pos.y - 1, z = pos.z }
+	apos = { x = pos.x, y = pos.y + 1, z = pos.z }
+
+	if string.find( node.name, '_c', -2 ) ~= nil then
+		if     node.param2 == WALLPX then
+			newparam = WALLMZ
+		elseif node.param2 == WALLMZ then
+			newparam = WALLMX
+		elseif node.param2 == WALLMX then
+			newparam = WALLPZ
+		elseif node.param2 == WALLPZ then
+			newparam = WALLPX
+		end
+	elseif string.find( node.name, '_o', -2 ) ~= nil then
+		if     node.param2 == WALLMZ then
+			newparam = WALLPX
+		elseif node.param2 == WALLMX then
+			newparam = WALLMZ
+		elseif node.param2 == WALLPZ then
+			newparam = WALLMX
+		elseif node.param2 == WALLPX then
+			newparam = WALLPZ
+		end
+	end
+
+	if ( node.name == 'doors:door_wood_a_c' ) then
+		minetest.env:add_node( pos,  { name = 'doors:door_wood_a_o', param2 = newparam } )
+		minetest.env:add_node( upos, { name = 'doors:door_wood_b_o', param2 = newparam } )
+
+	elseif ( node.name == 'doors:door_wood_b_c' ) then
+		minetest.env:add_node( pos,  { name = 'doors:door_wood_b_o', param2 = newparam } )
+		minetest.env:add_node( apos, { name = 'doors:door_wood_a_o', param2 = newparam } )
+
+	elseif ( node.name == 'doors:door_wood_a_o' ) then
+		minetest.env:add_node( pos,  { name = 'doors:door_wood_a_c', param2 = newparam } )
+		minetest.env:add_node( upos, { name = 'doors:door_wood_b_c', param2 = newparam } )
+
+	elseif ( node.name == 'doors:door_wood_b_o' ) then
+		minetest.env:add_node( pos,  { name = 'doors:door_wood_b_c', param2 = newparam } )
+		minetest.env:add_node( apos, { name = 'doors:door_wood_a_c', param2 = newparam } )
+
+	end
+end
+
+local on_door_digged = function( pos, node, digger )
+	upos = { x = pos.x, y = pos.y - 1, z = pos.z }
+	apos = { x = pos.x, y = pos.y + 1, z = pos.z }
+
+	if ( node.name == 'doors:door_wood_a_c' ) or ( node.name == 'doors:door_wood_a_o' ) then
+		minetest.env:remove_node( upos )
+	elseif ( node.name == 'doors:door_wood_b_c' ) or ( node.name == 'doors:door_wood_b_o' ) then
+		minetest.env:remove_node( apos )
+	end
+end
+
+--------------------------------------------------------------------------------
+
+minetest.register_on_placenode( on_door_placed )
+minetest.register_on_punchnode( on_door_punched )
+minetest.register_on_dignode( on_door_digged )
+
+--------------------------------------------------------------------------------
+

mods/experimental/init.lua

@@ -1,652 +0,0 @@
---
--- Experimental things
---
-
--- For testing random stuff
-
-experimental = {}
-
-timers_to_add = {}
-timers = {}
-minetest.register_globalstep(function(dtime)
-  for indes, timer in ipairs(timers_to_add) do
-    table.insert(timers, timer)
-  end
-  timers_to_add = {}
-  for index, timer in ipairs(timers) do
-    timer.time = timer.time - dtime
-    if timer.time <= 0 then
-      timer.func()
-      timers[index] = nil
-    end
-  end
-end)
-
-after = function(time, func)
-  table.insert(timers_to_add, {time=time, func=func})
-end
-
---[[
-stepsound = -1
-function test_sound()
-	print("test_sound")
-	stepsound = minetest.sound_play("default_grass_footstep", {gain=1.0})
-	after(2.0, test_sound)
-	--after(0.1, test_sound_stop)
-end
-function test_sound_stop()
-	print("test_sound_stop")
-	minetest.sound_stop(stepsound)
-	after(2.0, test_sound)
-end
-test_sound()
---]]
-
-function on_step(dtime)
-	-- print("experimental on_step")
-	--[[
-	objs = minetest.env:get_objects_inside_radius({x=0,y=0,z=0}, 10)
-	for k, obj in pairs(objs) do
-		name = obj:get_player_name()
-		if name then
-			print(name.." at "..dump(obj:getpos()))
-			print(name.." dir: "..dump(obj:get_look_dir()))
-			print(name.." pitch: "..dump(obj:get_look_pitch()))
-			print(name.." yaw: "..dump(obj:get_look_yaw()))
-		else
-			print("Some object at "..dump(obj:getpos()))
-		end
-	end
-	--]]
-	--[[
-	if experimental.t1 == nil then
-		experimental.t1 = 0
-	end
-	experimental.t1 = experimental.t1 + dtime
-	if experimental.t1 >= 2 then
-		experimental.t1 = experimental.t1 - 2
-		minetest.log("time of day is "..minetest.env:get_timeofday())
-		if experimental.day then
-			minetest.log("forcing day->night")
-			experimental.day = false
-			minetest.env:set_timeofday(0.0)
-		else
-			minetest.log("forcing night->day")
-			experimental.day = true
-			minetest.env:set_timeofday(0.5)
-		end
-		minetest.log("time of day is "..minetest.env:get_timeofday())
-	end
-	--]]
-end
-minetest.register_globalstep(on_step)
-
--- An example furnace-thing implemented in Lua
-
---[[
-minetest.register_node("experimental:luafurnace", {
-	tile_images = {"default_lava.png", "default_furnace_side.png",
-		"default_furnace_side.png", "default_furnace_side.png",
-		"default_furnace_side.png", "default_furnace_front.png"},
-	--inventory_image = "furnace_front.png",
-	inventory_image = minetest.inventorycube("default_furnace_front.png"),
-	paramtype = "facedir_simple",
-	metadata_name = "generic",
-	material = minetest.digprop_stonelike(3.0),
-})
-
-minetest.register_on_placenode(function(pos, newnode, placer)
-	if newnode.name == "experimental:luafurnace" then
-		local meta = minetest.env:get_meta(pos)
-		meta:inventory_set_list("fuel", {""})
-		meta:inventory_set_list("src", {""})
-		meta:inventory_set_list("dst", {"","","",""})
-		meta:set_inventory_draw_spec(
-			"invsize[8,9;]"
-			.."list[current_name;fuel;2,3;1,1;]"
-			.."list[current_name;src;2,1;1,1;]"
-			.."list[current_name;dst;5,1;2,2;]"
-			.."list[current_player;main;0,5;8,4;]"
-		)
-		
-		local total_cooked = 0;
-		meta:set_string("total_cooked", total_cooked)
-		meta:set_infotext("Lua Furnace: total cooked: "..total_cooked)
-	end
-end)
-
-minetest.register_abm({
-	nodenames = {"experimental:luafurnace"},
-	interval = 1.0,
-	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
-		local meta = minetest.env:get_meta(pos)
-		for i, name in ipairs({
-				"fuel_totaltime",
-				"fuel_time",
-				"src_totaltime",
-				"src_time"
-		}) do
-			if not meta:get_string(name) then
-				meta:set_string(name, 0)
-			end
-		end
-
-		local inv = meta:get_inventory()
-		
-		local fuelitem = inv:get_stack("fuel", 1):peek_item()
-		local srcitem = inv:get_stack("src", 1):peek_item()
-		--print("fuelitem="..dump(fuelitem))
-		--print("srcitem="..dump(srcitem))
-		
-		local was_active = false
-
-		local src_cooktime = -1
-		local result_stackstring = nil
-		
-		if srcitem then
-			local prop = get_item_definition(srcitem)
-			if prop and prop.cookresult_itemstring ~= "" then
-				result_stackstring = prop.cookresult_itemstring
-				src_cooktime = prop.furnace_cooktime or 3
-			end
-		end
-
-		print("src_cooktime="..dump(src_cooktime))
-		print("result_stackstring="..dump(result_stackstring))
-
-		if tonumber(meta:get_string("fuel_time")) < tonumber(meta:get_string("fuel_totaltime")) then
-			was_active = true
-			meta:set_string("fuel_time", tonumber(meta:get_string("fuel_time")) + 1)
-			meta:set_string("src_time", tonumber(meta:get_string("src_time")) + 1)
-			--print("result_stackstring="..dump(result_stackstring))
-			--print('tonumber(meta:get_string("src_time"))='..dump(tonumber(meta:get_string("src_time"))))
-			--print("src_cooktime="..dump(src_cooktime))
-			if result_stackstring and tonumber(meta:get_string("src_time")) >= src_cooktime and src_cooktime >= 0 then
-				-- Put result in "dst" list
-				success = inv:autoinsert_stackstring("dst", result_stackstring)
-				if not success then
-					print("Could not autoinsert '"..result_stackstring.."'")
-				end
-				-- If succeeded, take stuff from "src" list
-				if success then
-					srcstack = inv:get_stack("src", 1)
-					srcstack:take_item()
-					inv:set_stack("src", 1, srcstack)
-				end
-				meta:set_string("src_time", 0)
-			end
-		end
-		
-		if tonumber(meta:get_string("fuel_time")) < tonumber(meta:get_string("fuel_totaltime")) then
-			meta:set_infotext("Furnace active: "..(tonumber(meta:get_string("fuel_time"))/tonumber(meta:get_string("fuel_totaltime"))*100).."%")
-			return
-		end
-
-		local srcitem = inv:get_stack("src", 1):peek_item()
-
-		local src_cooktime = 0
-		local result_stackstring = nil
-		
-		if srcitem then
-			local prop = get_item_definition(srcitem)
-			if prop and prop.cookresult_itemstring ~= "" then
-				result_stackstring = prop.cookresult_itemstring
-				src_cooktime = prop.furnace_cooktime or 3
-			end
-		end
-
-		local fuelitem = inv:get_stack("fuel", 1):peek_item()
-
-		if not result_stackstring or not fuelitem then
-			if was_active then
-				meta:set_infotext("Furnace is empty")
-			end
-			return
-		end
-
-		local burntime = -1
-		if fuelitem then
-			local prop = get_item_definition(fuelitem)
-			if prop then
-				burntime = prop.furnace_burntime or -1
-			end
-		end
-
-		if burntime <= 0 then
-			meta:set_infotext("Furnace out of fuel")
-			return
-		end
-
-		meta:set_string("fuel_totaltime", burntime)
-		meta:set_string("fuel_time", 0)
-		
-		local stack = inv:get_stack("fuel", 1)
-		stack:take_item()
-		inv:set_stack("fuel", 1, stack)
-	end,
-})
-minetest.register_abm({
-	nodenames = {"experimental:luafurnace"},
-	interval = 1.0,
-	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
-		local meta = minetest.env:get_meta(pos)
-		local fuellist = meta:inventory_get_list("fuel")
-		local srclist = meta:inventory_get_list("src")
-		local dstlist = meta:inventory_get_list("dst")
-		if fuellist == nil or srclist == nil or dstlist == nil then
-			return
-		end
-		_, srcitem = stackstring_take_item(srclist[1])
-		_, fuelitem = stackstring_take_item(fuellist[1])
-		if not srcitem or not fuelitem then return end
-		if fuelitem.type == "node" then
-			local prop = minetest.registered_nodes[fuelitem.name]
-			if prop == nil then return end
-			if prop.furnace_burntime < 0 then return end
-		else
-			return
-		end
-		local resultstack = nil
-		if srcitem.type == "node" then
-			local prop = minetest.registered_nodes[srcitem.name]
-			if prop == nil then return end
-			if prop.cookresult_item == "" then return end
-			resultstack = prop.cookresult_item
-		else
-			return
-		end
-
-		if resultstack == nil then
-			return
-		end
-
-		dstlist[1], success = stackstring_put_stackstring(dstlist[1], resultstack)
-		if not success then
-			return
-		end
-
-		fuellist[1], _ = stackstring_take_item(fuellist[1])
-		srclist[1], _ = stackstring_take_item(srclist[1])
-
-		meta:inventory_set_list("fuel", fuellist)
-		meta:inventory_set_list("src", srclist)
-		meta:inventory_set_list("dst", dstlist)
-
-		local total_cooked = meta:get_string("total_cooked")
-		total_cooked = tonumber(total_cooked) + 1
-		meta:set_string("total_cooked", total_cooked)
-		meta:set_infotext("Lua Furnace: total cooked: "..total_cooked)
-	end,
-})
-minetest.register_craft({
-	output = 'node "experimental:luafurnace" 1',
-	recipe = {
-		{'node "default:cobble"', 'node "default:cobble"', 'node "default:cobble"'},
-		{'node "default:cobble"', 'node "default:steel_ingot"', 'node "default:cobble"'},
-		{'node "default:cobble"', 'node "default:cobble"', 'node "default:cobble"'},
-	}
-})
---]]
-
---
--- Random stuff
---
-
---[[
-minetest.register_tool("experimental:horribletool", {
-	image = "default_lava.png",
-	basetime = 2.0
-	dt_weight = 0.2
-	dt_crackiness = 0.2
-	dt_crumbliness = 0.2
-	dt_cuttability = 0.2
-	basedurability = 50
-	dd_weight = -5
-	dd_crackiness = -5
-	dd_crumbliness = -5
-	dd_cuttability = -5
-})
---]]
-
---
--- TNT (not functional)
---
-
-minetest.register_craft({
-	output = 'experimental:tnt',
-	recipe = {
-		{'default:wood'},
-		{'default:coal_lump'},
-		{'default:wood'}
-	}
-})
-
-minetest.register_node("experimental:tnt", {
-	tile_images = {"default_tnt_top.png", "default_tnt_bottom.png",
-			"default_tnt_side.png", "default_tnt_side.png",
-			"default_tnt_side.png", "default_tnt_side.png"},
-	inventory_image = minetest.inventorycube("default_tnt_top.png",
-			"default_tnt_side.png", "default_tnt_side.png"),
-	drop = '', -- Get nothing
-	material = {
-		diggability = "not",
-	},
-})
-
-minetest.register_on_punchnode(function(p, node)
-	if node.name == "experimental:tnt" then
-		minetest.env:remove_node(p)
-		minetest.env:add_entity(p, "experimental:tnt")
-		nodeupdate(p)
-	end
-end)
-
-local TNT = {
-	-- Static definition
-	physical = true, -- Collides with things
-	-- weight = 5,
-	collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
-	visual = "cube",
-	textures = {"default_tnt_top.png", "default_tnt_bottom.png",
-			"default_tnt_side.png", "default_tnt_side.png",
-			"default_tnt_side.png", "default_tnt_side.png"},
-	-- Initial value for our timer
-	timer = 0,
-	-- Number of punches required to defuse
-	health = 1,
-	blinktimer = 0,
-	blinkstatus = true,
-}
-
--- Called when a TNT object is created
-function TNT:on_activate(staticdata)
-	print("TNT:on_activate()")
-	self.object:setvelocity({x=0, y=4, z=0})
-	self.object:setacceleration({x=0, y=-10, z=0})
-	self.object:settexturemod("^[brighten")
-	self.object:set_armor_groups({immortal=1})
-end
-
--- Called periodically
-function TNT:on_step(dtime)
-	--print("TNT:on_step()")
-	self.timer = self.timer + dtime
-	self.blinktimer = self.blinktimer + dtime
-	if self.blinktimer > 0.5 then
-		self.blinktimer = self.blinktimer - 0.5
-		if self.blinkstatus then
-			self.object:settexturemod("")
-		else
-			self.object:settexturemod("^[brighten")
-		end
-		self.blinkstatus = not self.blinkstatus
-	end
-end
-
--- Called when object is punched
-function TNT:on_punch(hitter)
-	print("TNT:on_punch()")
-	self.health = self.health - 1
-	if self.health <= 0 then
-		self.object:remove()
-		hitter:get_inventory():add_item("main", "experimental:tnt")
-		--hitter:set_hp(hitter:get_hp() - 1)
-	end
-end
-
--- Called when object is right-clicked
-function TNT:on_rightclick(clicker)
-	--pos = self.object:getpos()
-	--pos = {x=pos.x, y=pos.y+0.1, z=pos.z}
-	--self.object:moveto(pos, false)
-end
-
---print("TNT dump: "..dump(TNT))
---print("Registering TNT");
-minetest.register_entity("experimental:tnt", TNT)
-
--- Add TNT's old name also
-minetest.register_alias("TNT", "experimental:tnt")
-
---
--- The dummyball!
---
-
-minetest.register_entity("experimental:dummyball", {
-	-- Static definition
-	hp_max = 20,
-	physical = false,
-	collisionbox = {-0.4,-0.4,-0.4, 0.4,0.4,0.4},
-	visual = "sprite",
-	visual_size = {x=1, y=1},
-	textures = {"experimental_dummyball.png"},
-	spritediv = {x=1, y=3},
-	initial_sprite_basepos = {x=0, y=0},
-	-- Dynamic variables
-	phase = 0,
-	phasetimer = 0,
-
-	on_activate = function(self, staticdata)
-		minetest.log("Dummyball activated!")
-	end,
-
-	on_step = function(self, dtime)
-		self.phasetimer = self.phasetimer + dtime
-		if self.phasetimer > 2.0 then
-			self.phasetimer = self.phasetimer - 2.0
-			self.phase = self.phase + 1
-			if self.phase >= 3 then
-				self.phase = 0
-			end
-			self.object:setsprite({x=0, y=self.phase})
-			phasearmor = {
-				[0]={cracky=3},
-				[1]={crumbly=3},
-				[2]={fleshy=3}
-			}
-			self.object:set_armor_groups(phasearmor[self.phase])
-		end
-	end,
-
-	on_punch = function(self, hitter)
-	end,
-})
-
-minetest.register_on_chat_message(function(name, message)
-	local cmd = "/dummyball"
-	if message:sub(0, #cmd) == cmd then
-		if not minetest.get_player_privs(name)["give"] then
-			minetest.chat_send_player(name, "you don't have permission to spawn (give)")
-			return true -- Handled chat message
-		end
-		if not minetest.get_player_privs(name)["interact"] then
-			minetest.chat_send_player(name, "you don't have permission to interact")
-			return true -- Handled chat message
-		end
-		local player = minetest.env:get_player_by_name(name)
-		if player == nil then
-			print("Unable to spawn entity, player is nil")
-			return true -- Handled chat message
-		end
-		local entityname = "experimental:dummyball"
-		local p = player:getpos()
-		p.y = p.y + 1
-		minetest.env:add_entity(p, entityname)
-		minetest.chat_send_player(name, '"'..entityname
-				..'" spawned.');
-		return true -- Handled chat message
-	end
-end)
-
---
--- A test entity for testing animated and yaw-modulated sprites
---
-
-minetest.register_entity("experimental:testentity", {
-	-- Static definition
-	physical = true, -- Collides with things
-	-- weight = 5,
-	collisionbox = {-0.7,-1.35,-0.7, 0.7,1.0,0.7},
-	--collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
-	visual = "sprite",
-	visual_size = {x=2, y=3},
-	textures = {"dungeon_master.png^[makealpha:128,0,0^[makealpha:128,128,0"},
-	spritediv = {x=6, y=5},
-	initial_sprite_basepos = {x=0, y=0},
-
-	on_activate = function(self, staticdata)
-		print("testentity.on_activate")
-		self.object:setsprite({x=0,y=0}, 1, 0, true)
-		--self.object:setsprite({x=0,y=0}, 4, 0.3, true)
-
-		-- Set gravity
-		self.object:setacceleration({x=0, y=-10, z=0})
-		-- Jump a bit upwards
-		self.object:setvelocity({x=0, y=10, z=0})
-	end,
-
-	on_punch = function(self, hitter)
-		self.object:remove()
-		hitter:add_to_inventory('craft testobject1 1')
-	end,
-})
-
---
--- More random stuff
---
-
-minetest.register_on_respawnplayer(function(player)
-	print("on_respawnplayer")
-	-- player:setpos({x=0, y=30, z=0})
-	-- return true
-end)
-
-minetest.register_on_generated(function(minp, maxp)
-	--print("on_generated: minp="..dump(minp).." maxp="..dump(maxp))
-	--cp = {x=(minp.x+maxp.x)/2, y=(minp.y+maxp.y)/2, z=(minp.z+maxp.z)/2}
-	--minetest.env:add_node(cp, {name="sand"})
-end)
-
--- Example setting get
---print("setting max_users = " .. dump(minetest.setting_get("max_users")))
---print("setting asdf = " .. dump(minetest.setting_get("asdf")))
-
-minetest.register_on_chat_message(function(name, message)
-	--[[print("on_chat_message: name="..dump(name).." message="..dump(message))
-	local cmd = "/testcommand"
-	if message:sub(0, #cmd) == cmd then
-		print(cmd.." invoked")
-		return true
-	end
-	local cmd = "/help"
-	if message:sub(0, #cmd) == cmd then
-		print("script-overridden help command")
-		minetest.chat_send_all("script-overridden help command")
-		return true
-	end]]
-end)
-
--- Grow papyrus on TNT every 10 seconds
---[[minetest.register_abm({
-	nodenames = {"TNT"},
-	interval = 10.0,
-	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
-		print("TNT ABM action")
-		pos.y = pos.y + 1
-		minetest.env:add_node(pos, {name="papyrus"})
-	end,
-})]]
-
--- Replace texts of alls signs with "foo" every 10 seconds
---[[minetest.register_abm({
-	nodenames = {"sign_wall"},
-	interval = 10.0,
-	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
-		print("ABM: Sign text changed")
-		local meta = minetest.env:get_meta(pos)
-		meta:set_text("foo")
-	end,
-})]]
-
---[[local ncpos = nil
-local ncq = 1
-local ncstuff = {
-    {2, 1, 0, 3}, {3, 0, 1, 2}, {4, -1, 0, 1}, {5, -1, 0, 1}, {6, 0, -1, 0},
-    {7, 0, -1, 0}, {8, 1, 0, 3}, {9, 1, 0, 3}, {10, 1, 0, 3}, {11, 0, 1, 2},
-    {12, 0, 1, 2}, {13, 0, 1, 2}, {14, -1, 0, 1}, {15, -1, 0, 1}, {16, -1, 0, 1},
-    {17, -1, 0, 1}, {18, 0, -1, 0}, {19, 0, -1, 0}, {20, 0, -1, 0}, {21, 0, -1, 0},
-    {22, 1, 0, 3}, {23, 1, 0, 3}, {24, 1, 0, 3}, {25, 1, 0, 3}, {10, 0, 1, 2}
-}
-local ncold = {}
-local nctime = nil
-
-minetest.register_abm({
-    nodenames = {"dirt_with_grass"},
-    interval = 100000.0,
-    chance = 1,
-    action = function(pos, node, active_object_count, active_object_count_wider)
-        if ncpos ~= nil then
-            return
-        end
-       
-        if pos.x % 16 ~= 8 or pos.z % 16 ~= 8 then
-            return
-        end
-       
-        pos.y = pos.y + 1
-        n = minetest.env:get_node(pos)
-        print(dump(n))
-        if n.name ~= "air" then
-            return
-        end
-
-        pos.y = pos.y + 2
-        ncpos = pos
-        nctime = os.clock()
-        minetest.env:add_node(ncpos, {name="nyancat"})
-    end
-})
-
-minetest.register_abm({
-    nodenames = {"nyancat"},
-    interval = 1.0,
-    chance = 1,
-    action = function(pos, node, active_object_count, active_object_count_wider)
-        if ncpos == nil then
-            return
-        end
-        if pos.x == ncpos.x and pos.y == ncpos.y and pos.z == ncpos.z then
-            clock = os.clock()
-            if clock - nctime < 0.1 then
-                return
-            end
-            nctime = clock
-           
-            s0 = ncstuff[ncq]
-            ncq = s0[1]
-            s1 = ncstuff[ncq]
-            p0 = pos
-            p1 = {x = p0.x + s0[2], y = p0.y, z = p0.z + s0[3]}
-            p2 = {x = p1.x + s1[2], y = p1.y, z = p1.z + s1[3]}
-            table.insert(ncold, 1, p0)
-            while #ncold >= 10 do
-                minetest.env:add_node(ncold[#ncold], {name="air"})
-                table.remove(ncold, #ncold)
-            end
-            minetest.env:add_node(p0, {name="nyancat_rainbow"})
-            minetest.env:add_node(p1, {name="nyancat", param1=s0[4]})
-            minetest.env:add_node(p2, {name="air"})
-            ncpos = p1
-        end
-    end,
-})--]]
-
-minetest.log("experimental modname="..dump(minetest.get_current_modname()))
-minetest.log("experimental modpath="..dump(minetest.get_modpath("experimental")))
-minetest.log("experimental worldpath="..dump(minetest.get_worldpath()))
-
--- END

mods/fire/README.txt

@@ -0,0 +1,30 @@
+Minetest 0.4 mod: fire
+======================
+
+License of source code:
+-----------------------
+Copyright (C) 2012 Perttu Ahola (celeron55) <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+http://www.gnu.org/licenses/gpl-2.0.html
+
+License of media (textures and sounds)
+--------------------------------------
+Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)                                 
+http://creativecommons.org/licenses/by-sa/3.0/
+
+Authors of media files
+-----------------------
+Everything not listed in here:
+Copyright (C) 2012 Perttu Ahola (celeron55) <celeron55@gmail.com>
+
+fire_small.ogg sampled from:
+  http://www.freesound.org/people/dobroide/sounds/4211/
+
+fire_large.ogg sampled from:
+  http://www.freesound.org/people/Dynamicell/sounds/17548/
+

mods/fire/init.lua

@@ -0,0 +1,188 @@
+-- minetest/fire/init.lua
+
+minetest.register_node("fire:basic_flame", {
+	description = "Fire",
+	drawtype = "glasslike",
+	tile_images = {"fire_basic_flame.png"},
+	light_source = 14,
+	groups = {igniter=3,dig_immediate=3},
+	drop = '',
+	walkable = false,
+})
+
+local fire = {}
+fire.D = 6
+-- key: position hash of low corner of area
+-- value: {handle=sound handle, name=sound name}
+fire.sounds = {}
+
+function fire.get_area_p0p1(pos)
+	local p0 = {
+		x=math.floor(pos.x/fire.D)*fire.D,
+		y=math.floor(pos.y/fire.D)*fire.D,
+		z=math.floor(pos.z/fire.D)*fire.D,
+	}
+	local p1 = {
+		x=p0.x+fire.D-1,
+		y=p0.y+fire.D-1,
+		z=p0.z+fire.D-1
+	}
+	return p0, p1
+end
+
+function fire.update_sounds_around(pos)
+	local p0, p1 = fire.get_area_p0p1(pos)
+	local cp = {x=(p0.x+p1.x)/2, y=(p0.y+p1.y)/2, z=(p0.z+p1.z)/2}
+	local flames_p = minetest.env:find_nodes_in_area(p0, p1, {"fire:basic_flame"})
+	--print("number of flames at "..minetest.pos_to_string(p0).."/"
+	--		..minetest.pos_to_string(p1)..": "..#flames_p)
+	local should_have_sound = (#flames_p > 0)
+	local wanted_sound = nil
+	if #flames_p >= 9 then
+		wanted_sound = {name="fire_large", gain=1.5}
+	elseif #flames_p > 0 then
+		wanted_sound = {name="fire_small", gain=1.5}
+	end
+	local p0_hash = minetest.hash_node_position(p0)
+	local sound = fire.sounds[p0_hash]
+	if not sound then
+		if should_have_sound then
+			fire.sounds[p0_hash] = {
+				handle = minetest.sound_play(wanted_sound, {pos=cp, loop=true}),
+				name = wanted_sound.name,
+			}
+		end
+	else
+		if not wanted_sound then
+			minetest.sound_stop(sound.handle)
+			fire.sounds[p0_hash] = nil
+		elseif sound.name ~= wanted_sound.name then
+			minetest.sound_stop(sound.handle)
+			fire.sounds[p0_hash] = {
+				handle = minetest.sound_play(wanted_sound, {pos=cp, loop=true}),
+				name = wanted_sound.name,
+			}
+		end
+	end
+end
+
+function fire.on_flame_add_at(pos)
+	--print("flame added at "..minetest.pos_to_string(pos))
+	fire.update_sounds_around(pos)
+end
+
+function fire.on_flame_remove_at(pos)
+	--print("flame removed at "..minetest.pos_to_string(pos))
+	fire.update_sounds_around(pos)
+end
+
+function fire.find_pos_for_flame_around(pos)
+	return minetest.env:find_node_near(pos, 1, {"air"})
+end
+
+function fire.flame_should_extinguish(pos)
+	--return minetest.env:find_node_near(pos, 1, {"group:puts_out_fire"})
+	local p0 = {x=pos.x-2, y=pos.y, z=pos.z-2}
+	local p1 = {x=pos.x+2, y=pos.y, z=pos.z+2}
+	local ps = minetest.env:find_nodes_in_area(p0, p1, {"group:puts_out_fire"})
+	return (#ps ~= 0)
+end
+
+minetest.register_on_placenode(function(pos, newnode, placer)
+	if newnode.name == "fire:basic_flame" then
+		fire.on_flame_add_at(pos)
+	end
+end)
+
+minetest.register_on_dignode(function(pos, oldnode, digger)
+	if oldnode.name == "fire:basic_flame" then
+		fire.on_flame_remove_at(pos)
+	end
+end)
+
+-- Ignite neighboring nodes
+minetest.register_abm({
+	nodenames = {"group:flammable"},
+	neighbors = {"group:igniter"},
+	interval = 1,
+	chance = 2,
+	action = function(p0, node, _, _)
+		-- If there is water or stuff like that around flame, don't ignite
+		if fire.flame_should_extinguish(p0) then
+			return
+		end
+		local p = fire.find_pos_for_flame_around(p0)
+		if p then
+			minetest.env:set_node(p, {name="fire:basic_flame"})
+			fire.on_flame_add_at(p)
+		end
+	end,
+})
+
+-- Rarely ignite things from far
+minetest.register_abm({
+	nodenames = {"group:igniter"},
+	neighbors = {"air"},
+	interval = 2,
+	chance = 10,
+	action = function(p0, node, _, _)
+		local reg = minetest.registered_nodes[node.name]
+		if not reg or not reg.groups.igniter or reg.groups.igniter < 2 then
+			return
+		end
+		local d = reg.groups.igniter
+		local p = minetest.env:find_node_near(p0, d, {"group:flammable"})
+		if p then
+			-- If there is water or stuff like that around flame, don't ignite
+			if fire.flame_should_extinguish(p) then
+				return
+			end
+			local p2 = fire.find_pos_for_flame_around(p)
+			if p2 then
+				minetest.env:set_node(p2, {name="fire:basic_flame"})
+				fire.on_flame_add_at(p2)
+			end
+		end
+	end,
+})
+
+-- Remove flammable nodes and flame
+minetest.register_abm({
+	nodenames = {"fire:basic_flame"},
+	interval = 1,
+	chance = 2,
+	action = function(p0, node, _, _)
+		-- If there is water or stuff like that around flame, remove flame
+		if fire.flame_should_extinguish(p0) then
+			minetest.env:remove_node(p0)
+			fire.on_flame_remove_at(p0)
+			return
+		end
+		-- Make the following things rarer
+		if math.random(1,3) == 1 then
+			return
+		end
+		-- If there are no flammable nodes around flame, remove flame
+		if not minetest.env:find_node_near(p0, 1, {"group:flammable"}) then
+			minetest.env:remove_node(p0)
+			fire.on_flame_remove_at(p0)
+			return
+		end
+		if math.random(1,4) == 1 then
+			-- remove a flammable node around flame
+			local p = minetest.env:find_node_near(p0, 1, {"group:flammable"})
+			if p then
+				-- If there is water or stuff like that around flame, don't remove
+				if fire.flame_should_extinguish(p0) then
+					return
+				end
+				minetest.env:remove_node(p)
+			end
+		else
+			-- remove flame
+			minetest.env:remove_node(p0)
+			fire.on_flame_remove_at(p0)
+		end
+	end,
+})
+