Prevent divide by zero (#2106)

This forces all explosions to damage entities within the 1 node
range. If that needs to be disabled, the damage_radius needs to
be set to 0.

.vscode/settings.json

@@ -1,10 +0,0 @@
-{
-    "Lua.diagnostics.globals": [
-        "minetest",
-        "ItemStack",
-        "vector",
-        "VoxelManip",
-        "VoxelArea",
-        "PseudoRandom"
-    ]
-}

README.txt

@@ -2,4 +2,43 @@ Minetest Game mod: tnt
 ======================
 See license.txt for license information.
 
-This is just tnt logic extracted
+Authors of source code
+----------------------
+PilzAdam (MIT)
+ShadowNinja (MIT)
+sofar (sofar@foo-projects.org) (MIT)
+Various Minetest developers and contributors (MIT)
+
+Authors of media (textures)
+---------------------------
+BlockMen (CC BY-SA 3.0):
+All textures not mentioned below.
+
+ShadowNinja (CC BY-SA 3.0):
+tnt_smoke.png
+
+Wuzzy (CC BY-SA 3.0):
+All gunpowder textures except tnt_gunpowder_inventory.png.
+
+sofar (sofar@foo-projects.org) (CC BY-SA 3.0):
+tnt_blast.png
+
+Introduction
+------------
+This mod adds TNT to Minetest. TNT is a tool to help the player
+in mining.
+
+How to use the mod:
+Craft gunpowder by placing coal and gravel in the crafting area.
+The gunpowder can be used to craft TNT or as fuse for TNT.
+To craft TNT place items like this:
+-- wood - gunpowder -- wood -
+gunpowder gunpowder gunpowder
+-- wood - gunpowder -- wood -
+
+There are different ways to blow up TNT:
+  1. Hit it with a torch.
+  2. Hit a gunpowder fuse that leads to a TNT block with a torch or flint-and-steel.
+  3. Activate it with mesecons (fastest way).
+
+Be aware of the damage radius of 6 blocks!

depends.txt

@@ -0,0 +1,3 @@
+default
+fire
+

init.lua

@@ -1,11 +1,22 @@
--- tnt/init.lua
-
 tnt = {}
 
+-- Default to enabled when in singleplayer
+local enable_tnt = minetest.settings:get_bool("enable_tnt")
+if enable_tnt == nil then
+	enable_tnt = minetest.is_singleplayer()
+end
+
+-- loss probabilities array (one in X will be lost)
+local loss_prob = {}
+
+loss_prob["default:cobble"] = 3
+loss_prob["default:dirt"] = 4
+
+local tnt_radius = tonumber(minetest.settings:get("tnt_radius") or 3)
 
 -- Fill a list with data for content IDs, after all nodes are registered
 local cid_data = {}
-minetest.register_on_mods_loaded(function()
+minetest.after(0, function()
 	for name, def in pairs(minetest.registered_nodes) do
 		cid_data[minetest.get_content_id(name)] = {
 			name = name,
@@ -47,8 +58,8 @@ local function eject_drops(drops, pos, radius)
 			local obj = minetest.add_item(drop_pos, dropitem)
 			if obj then
 				obj:get_luaentity().collect = true
-				obj:set_acceleration({x = 0, y = -10, z = 0})
+				obj:setacceleration({x = 0, y = -10, z = 0})
-				obj:set_velocity({x = math.random(-3, 3),
+				obj:setvelocity({x = math.random(-3, 3),
 						y = math.random(0, 10),
 						z = math.random(-3, 3)})
 			end
@@ -60,7 +71,7 @@ end
 local function add_drop(drops, item)
 	item = ItemStack(item)
 	local name = item:get_name()
-	if math.random(1, 4) > 1 then
+	if loss_prob[name] ~= nil and math.random(1, loss_prob[name]) == 1 then
 		return
 	end
 
@@ -74,7 +85,11 @@ end
 
 local basic_flame_on_construct -- cached value
 local function destroy(drops, npos, cid, c_air, c_fire,
-		on_blast_queue, on_construct_queue, ignore_on_blast, owner)
+		on_blast_queue, on_construct_queue,
+		ignore_protection, ignore_on_blast, owner)
+	if not ignore_protection and minetest.is_protected(npos, owner) then
+		return cid
+	end
 
 	local def = cid_data[cid]
 
@@ -137,24 +152,26 @@ end
 local function entity_physics(pos, radius, drops)
 	local objs = minetest.get_objects_inside_radius(pos, radius)
 	for _, obj in pairs(objs) do
-		local obj_pos = obj:get_pos()
+		local obj_pos = obj:getpos()
 		local dist = math.max(1, vector.distance(pos, obj_pos))
 
 		local damage = (4 / dist) * radius
 		if obj:is_player() then
+			-- currently the engine has no method to set
+			-- player velocity. See #2960
+			-- instead, we knock the player back 1.0 node, and slightly upwards
 			local dir = vector.normalize(vector.subtract(obj_pos, pos))
-			local moveoff = vector.multiply(dir, 2 / dist * radius)
+			local moveoff = vector.multiply(dir, dist + 1.0)
-			obj:add_player_velocity(moveoff)
+			local newpos = vector.add(pos, moveoff)
+			newpos = vector.add(newpos, {x = 0, y = 0.2, z = 0})
+			obj:setpos(newpos)
 
 			obj:set_hp(obj:get_hp() - damage)
 		else
-			local luaobj = obj:get_luaentity()
-
-			-- object might have disappeared somehow
-			if luaobj then
 			local do_damage = true
 			local do_knockback = true
 			local entity_drops = {}
+			local luaobj = obj:get_luaentity()
 			local objdef = minetest.registered_entities[luaobj.name]
 
 			if objdef and objdef.on_blast then
@@ -162,8 +179,8 @@ local function entity_physics(pos, radius, drops)
 			end
 
 			if do_knockback then
-					local obj_vel = obj:get_velocity()
+				local obj_vel = obj:getvelocity()
-					obj:set_velocity(calc_velocity(pos, obj_pos,
+				obj:setvelocity(calc_velocity(pos, obj_pos,
 						obj_vel, radius * 10))
 			end
 			if do_damage then
@@ -179,14 +196,85 @@ local function entity_physics(pos, radius, drops)
 			end
 		end
 	end
+end
+
+local function add_effects(pos, radius, drops)
+	minetest.add_particle({
+		pos = pos,
+		velocity = vector.new(),
+		acceleration = vector.new(),
+		expirationtime = 0.4,
+		size = radius * 10,
+		collisiondetection = false,
+		vertical = false,
+		texture = "tnt_boom.png",
+		glow = 15,
+	})
+	minetest.add_particlespawner({
+		amount = 64,
+		time = 0.5,
+		minpos = vector.subtract(pos, radius / 2),
+		maxpos = vector.add(pos, radius / 2),
+		minvel = {x = -10, y = -10, z = -10},
+		maxvel = {x = 10, y = 10, z = 10},
+		minacc = vector.new(),
+		maxacc = vector.new(),
+		minexptime = 1,
+		maxexptime = 2.5,
+		minsize = radius * 3,
+		maxsize = radius * 5,
+		texture = "tnt_smoke.png",
+	})
+
+	-- we just dropped some items. Look at the items entities and pick
+	-- one of them to use as texture
+	local texture = "tnt_blast.png" --fallback texture
+	local most = 0
+	for name, stack in pairs(drops) do
+		local count = stack:get_count()
+		if count > most then
+			most = count
+			local def = minetest.registered_nodes[name]
+			if def and def.tiles and def.tiles[1] then
+				texture = def.tiles[1]
+			end
+		end
+	end
+
+	minetest.add_particlespawner({
+		amount = 64,
+		time = 0.1,
+		minpos = vector.subtract(pos, radius / 2),
+		maxpos = vector.add(pos, radius / 2),
+		minvel = {x = -3, y = 0, z = -3},
+		maxvel = {x = 3, y = 5,  z = 3},
+		minacc = {x = 0, y = -10, z = 0},
+		maxacc = {x = 0, y = -10, z = 0},
+		minexptime = 0.8,
+		maxexptime = 2.0,
+		minsize = radius * 0.66,
+		maxsize = radius * 2,
+		texture = texture,
+		collisiondetection = true,
+	})
+end
+
+function tnt.burn(pos, nodename)
+	local name = nodename or minetest.get_node(pos).name
+	local def = minetest.registered_nodes[name]
+	if not def then
+		return
+	elseif def.on_ignite then
+		def.on_ignite(pos)
+	elseif minetest.get_item_group(name, "tnt") > 0 then
+		minetest.swap_node(pos, {name = name .. "_burning"})
+		minetest.sound_play("tnt_ignite", {pos = pos})
+		minetest.get_node_timer(pos):start(1)
 	end
 end
 
-local function tnt_explode(pos, radius, ignore_on_blast, owner, explode_center)
+local function tnt_explode(pos, radius, ignore_protection, ignore_on_blast, owner, explode_center)
 	pos = vector.round(pos)
-	if radius < 1 then
-		return
-	end
 	-- scan for adjacent TNT nodes first, and enlarge the explosion
 	local vm1 = VoxelManip()
 	local p1 = vector.subtract(pos, 2)
@@ -195,8 +283,9 @@ local function tnt_explode(pos, radius, ignore_on_blast, owner, explode_center)
 	local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
 	local data = vm1:get_data()
 	local count = 0
-	local c_tnt
+	local c_tnt = minetest.get_content_id("tnt:tnt")
-	local c_tnt_boom = minetest.get_content_id("tnt:boom_center")
+	local c_tnt_burning = minetest.get_content_id("tnt:tnt_burning")
+	local c_tnt_boom = minetest.get_content_id("tnt:boom")
 	local c_air = minetest.get_content_id("air")
 	-- make sure we still have explosion even when centre node isnt tnt related
 	if explode_center then
@@ -208,7 +297,7 @@ local function tnt_explode(pos, radius, ignore_on_blast, owner, explode_center)
 		local vi = a:index(pos.x - 2, y, z)
 		for x = pos.x - 2, pos.x + 2 do
 			local cid = data[vi]
-			if cid == c_tnt or cid == c_tnt_boom then
+			if cid == c_tnt or cid == c_tnt_boom or cid == c_tnt_burning then
 				count = count + 1
 				data[vi] = c_air
 			end
@@ -221,7 +310,7 @@ local function tnt_explode(pos, radius, ignore_on_blast, owner, explode_center)
 	vm1:write_to_map()
 
 	-- recalculate new radius
-	radius = math.floor(radius * count^1/3)
+	radius = math.floor(radius * math.pow(count, 1/3))
 
 	-- perform the explosion
 	local vm = VoxelManip()
@@ -235,16 +324,9 @@ local function tnt_explode(pos, radius, ignore_on_blast, owner, explode_center)
 	local drops = {}
 	local on_blast_queue = {}
 	local on_construct_queue = {}
-	--check if mod fire is active
-	local fire_mod = minetest.get_modpath("fire")
-	if fire_mod ~= nil then
 	basic_flame_on_construct = minetest.registered_nodes["fire:basic_flame"].on_construct
-		c_fire = minetest.get_content_id("fire:basic_flame")
-	else
-		basic_flame_on_construct = function() end
-		c_fire = c_air
-	end
 
+	local c_fire = minetest.get_content_id("fire:basic_flame")
 	for z = -radius, radius do
 	for y = -radius, radius do
 	local vi = a:index(pos.x + (-radius), pos.y + y, pos.z + z)
@@ -255,7 +337,8 @@ local function tnt_explode(pos, radius, ignore_on_blast, owner, explode_center)
 			local p = {x = pos.x + x, y = pos.y + y, z = pos.z + z}
 			if cid ~= c_air then
 				data[vi] = destroy(drops, p, cid, c_air, c_fire,
-					on_blast_queue, on_construct_queue, ignore_on_blast, owner)
+					on_blast_queue, on_construct_queue,
+					ignore_protection, ignore_on_blast, owner)
 			end
 		end
 		vi = vi + 1
@@ -306,19 +389,14 @@ end
 function tnt.boom(pos, def)
 	def = def or {}
 	def.radius = def.radius or 1
-	def.sound = def.sound or 1
 	def.damage_radius = def.damage_radius or def.radius * 2
 	local meta = minetest.get_meta(pos)
 	local owner = meta:get_string("owner")
 	if not def.explode_center then
-		minetest.set_node(pos, {name = "tnt:boom_center"})
+		minetest.set_node(pos, {name = "tnt:boom"})
 	end
-	local sound = def.sound or "tnt_explode"
+	minetest.sound_play("tnt_explode", {pos = pos, gain = 1.5, max_hear_distance = 2*64})
-	if def.sound then
+	local drops, radius = tnt_explode(pos, def.radius, def.ignore_protection,
-		minetest.sound_play(sound, {pos = pos, gain = 2.5,
-				max_hear_distance = math.min(def.radius * 20, 128)}, true)
-	end
-	local drops, radius = tnt_explode(pos, def.radius,
 			def.ignore_on_blast, owner, def.explode_center)
 	-- append entity drops
 	local damage_radius = (radius / math.max(1, def.radius)) * def.damage_radius
@@ -326,41 +404,260 @@ function tnt.boom(pos, def)
 	if not def.disable_drops then
 		eject_drops(drops, pos, radius)
 	end
+	add_effects(pos, radius, drops)
 	minetest.log("action", "A TNT explosion occurred at " .. minetest.pos_to_string(pos) ..
 		" with radius " .. radius)
 end
 
-minetest.register_node("tnt:boom_center", {
+minetest.register_node("tnt:boom", {
 	drawtype = "airlike",
-	light_source = 14,
+	light_source = default.LIGHT_MAX,
 	walkable = false,
 	drop = "",
 	groups = {dig_immediate = 3},
 	-- unaffected by explosions
 	on_blast = function() end,
-	--remove the tnt node after a while
+})
-	on_timer = function(pos, elapsed)
+
-		minetest.remove_node(pos)
+minetest.register_node("tnt:gunpowder", {
-		minetest.check_for_falling(pos)
+	description = "Gun Powder",
+	drawtype = "raillike",
+	paramtype = "light",
+	is_ground_content = false,
+	sunlight_propagates = true,
+	walkable = false,
+	tiles = {
+		"tnt_gunpowder_straight.png",
+		"tnt_gunpowder_curved.png",
+		"tnt_gunpowder_t_junction.png",
+		"tnt_gunpowder_crossing.png"
+	},
+	inventory_image = "tnt_gunpowder_inventory.png",
+	wield_image = "tnt_gunpowder_inventory.png",
+	selection_box = {
+		type = "fixed",
+		fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
+	},
+	groups = {dig_immediate = 2, attached_node = 1, flammable = 5,
+		connect_to_raillike = minetest.raillike_group("gunpowder")},
+	sounds = default.node_sound_leaves_defaults(),
+
+	on_punch = function(pos, node, puncher)
+		if puncher:get_wielded_item():get_name() == "default:torch" then
+			minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
+			minetest.log("action", puncher:get_player_name() ..
+				" ignites tnt:gunpowder at " ..
+				minetest.pos_to_string(pos))
+		end
 	end,
-	-- countdown timer
+	on_blast = function(pos, intensity)
-	on_construct = function(pos)
+		minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
-		minetest.get_node_timer(pos):start(3)
+	end,
+	on_burn = function(pos)
+		minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
+	end,
+	on_ignite = function(pos, igniter)
+		minetest.set_node(pos, {name = "tnt:gunpowder_burning"})
 	end,
 })
 
-minetest.register_node("tnt:instaboom", {
+minetest.register_node("tnt:gunpowder_burning", {
-	drawtype = "airlike",
+	drawtype = "raillike",
-	light_source = 14,
+	paramtype = "light",
+	sunlight_propagates = true,
 	walkable = false,
+	light_source = 5,
+	tiles = {{
+		name = "tnt_gunpowder_burning_straight_animated.png",
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 16,
+			aspect_h = 16,
+			length = 1,
+		}
+	},
+	{
+		name = "tnt_gunpowder_burning_curved_animated.png",
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 16,
+			aspect_h = 16,
+			length = 1,
+		}
+	},
+	{
+		name = "tnt_gunpowder_burning_t_junction_animated.png",
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 16,
+			aspect_h = 16,
+			length = 1,
+		}
+	},
+	{
+		name = "tnt_gunpowder_burning_crossing_animated.png",
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 16,
+			aspect_h = 16,
+			length = 1,
+		}
+	}},
+	selection_box = {
+		type = "fixed",
+		fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
+	},
 	drop = "",
-	on_construct = function(pos)
+	groups = {
-		tnt.boom(pos, {
+		dig_immediate = 2,
-			radius = 12,
+		attached_node = 1,
-			damage_radius = 0,
+		connect_to_raillike = minetest.raillike_group("gunpowder")
-			disable_drops = true,
+	},
-			ignore_on_blast = true,
+	sounds = default.node_sound_leaves_defaults(),
-			explode_center = true,
+	on_timer = function(pos, elapsed)
+		for dx = -1, 1 do
+		for dz = -1, 1 do
+			if math.abs(dx) + math.abs(dz) == 1 then
+				for dy = -1, 1 do
+					tnt.burn({
+						x = pos.x + dx,
+						y = pos.y + dy,
+						z = pos.z + dz,
 					})
+				end
+			end
+		end
+		end
+		minetest.remove_node(pos)
+	end,
+	-- unaffected by explosions
+	on_blast = function() end,
+	on_construct = function(pos)
+		minetest.sound_play("tnt_gunpowder_burning", {pos = pos, gain = 2})
+		minetest.get_node_timer(pos):start(1)
 	end,
 })
+
+minetest.register_craft({
+	output = "tnt:gunpowder 5",
+	type = "shapeless",
+	recipe = {"default:coal_lump", "default:gravel"}
+})
+
+if enable_tnt then
+	minetest.register_craft({
+		output = "tnt:tnt",
+		recipe = {
+			{"group:wood",    "tnt:gunpowder", "group:wood"},
+			{"tnt:gunpowder", "tnt:gunpowder", "tnt:gunpowder"},
+			{"group:wood",    "tnt:gunpowder", "group:wood"}
+		}
+	})
+
+	minetest.register_abm({
+		label = "TNT ignition",
+		nodenames = {"group:tnt", "tnt:gunpowder"},
+		neighbors = {"fire:basic_flame", "default:lava_source", "default:lava_flowing"},
+		interval = 4,
+		chance = 1,
+		action = function(pos, node)
+			tnt.burn(pos, node.name)
+		end,
+	})
+end
+
+function tnt.register_tnt(def)
+	local name
+	if not def.name:find(':') then
+		name = "tnt:" .. def.name
+	else
+		name = def.name
+		def.name = def.name:match(":([%w_]+)")
+	end
+	if not def.tiles then def.tiles = {} end
+	local tnt_top = def.tiles.top or def.name .. "_top.png"
+	local tnt_bottom = def.tiles.bottom or def.name .. "_bottom.png"
+	local tnt_side = def.tiles.side or def.name .. "_side.png"
+	local tnt_burning = def.tiles.burning or def.name .. "_top_burning_animated.png"
+	if not def.damage_radius then def.damage_radius = def.radius * 2 end
+
+	if enable_tnt then
+		minetest.register_node(":" .. name, {
+			description = def.description,
+			tiles = {tnt_top, tnt_bottom, tnt_side},
+			is_ground_content = false,
+			groups = {dig_immediate = 2, mesecon = 2, tnt = 1, flammable = 5},
+			sounds = default.node_sound_wood_defaults(),
+			after_place_node = function(pos, placer)
+				if placer:is_player() then
+					local meta = minetest.get_meta(pos)
+					meta:set_string("owner", placer:get_player_name())
+				end
+			end,
+			on_punch = function(pos, node, puncher)
+				if puncher:get_wielded_item():get_name() == "default:torch" then
+					minetest.swap_node(pos, {name = name .. "_burning"})
+					minetest.registered_nodes[name .. "_burning"].on_construct(pos)
+					minetest.log("action", puncher:get_player_name() ..
+						" ignites " .. node.name .. " at " ..
+						minetest.pos_to_string(pos))
+				end
+			end,
+			on_blast = function(pos, intensity)
+				minetest.after(0.1, function()
+					tnt.boom(pos, def)
+				end)
+			end,
+			mesecons = {effector =
+				{action_on =
+					function(pos)
+						tnt.boom(pos, def)
+					end
+				}
+			},
+			on_burn = function(pos)
+				minetest.swap_node(pos, {name = name .. "_burning"})
+				minetest.registered_nodes[name .. "_burning"].on_construct(pos)
+			end,
+			on_ignite = function(pos, igniter)
+				minetest.swap_node(pos, {name = name .. "_burning"})
+				minetest.registered_nodes[name .. "_burning"].on_construct(pos)
+			end,
+		})
+	end
+
+	minetest.register_node(":" .. name .. "_burning", {
+		tiles = {
+			{
+				name = tnt_burning,
+				animation = {
+					type = "vertical_frames",
+					aspect_w = 16,
+					aspect_h = 16,
+					length = 1,
+				}
+			},
+			tnt_bottom, tnt_side
+			},
+		light_source = 5,
+		drop = "",
+		sounds = default.node_sound_wood_defaults(),
+		groups = {falling_node = 1},
+		on_timer = function(pos, elapsed)
+			tnt.boom(pos, def)
+		end,
+		-- unaffected by explosions
+		on_blast = function() end,
+		on_construct = function(pos)
+			minetest.sound_play("tnt_ignite", {pos = pos})
+			minetest.get_node_timer(pos):start(4)
+			minetest.check_for_falling(pos)
+		end,
+	})
+end
+
+tnt.register_tnt({
+	name = "tnt:tnt",
+	description = "TNT",
+	radius = tnt_radius,
+})

license.txt

@@ -6,7 +6,6 @@ Copyright (C) 2014-2016 PilzAdam
 Copyright (C) 2014-2016 ShadowNinja
 Copyright (C) 2016 sofar (sofar@foo-projects.org)
 Copyright (C) 2014-2016 Various Minetest developers and contributors
-Copyright (C) 2022 BRN Systems
 
 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
@@ -28,33 +27,39 @@ For more details:
 https://opensource.org/licenses/MIT
 
 
-CC0 1.0 Universal (CC0 1.0) Public Domain Dedication 
+Licenses of media (textures)
-for audio files (found in sounds folder)
+----------------------------
-TumeniNodes
-steveygos93
-theneedle.tv
-frankelmedico
 
-No Copyright
+Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
+Copyright (C) 2014-2016 BlockMen
+Copyright (C) 2014-2016 ShadowNinja
+Copyright (C) 2015-2016 Wuzzy
+Copyright (C) 2016 sofar (sofar@foo-projects.org)
 
-The person who associated a work with this deed has dedicated the work to the public domain
+You are free to:
-by waiving all of his or her rights to the work worldwide under copyright law, including all
+Share — copy and redistribute the material in any medium or format.
-related and neighboring rights, to the extent allowed by law.
+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.
 
-You can copy, modify, distribute and perform the work, even for commercial purposes, all
+Under the following terms:
-without asking permission. See Other Information below.
 
-In no way are the patent or trademark rights of any person affected by CC0, nor are the
+Attribution — You must give appropriate credit, provide a link to the license, and
-rights that other persons may have in the work or in how the work is used, such as publicity
+indicate if changes were made. You may do so in any reasonable manner, but not in any way
-or privacy rights.
+that suggests the licensor endorses you or your use.
 
-Unless expressly stated otherwise, the person who associated a work with this deed makes no
+ShareAlike — If you remix, transform, or build upon the material, you must distribute
-warranties about the work, and disclaims liability for all uses of the work, to the fullest
+your contributions under the same license as the original.
-extent permitted by applicable law.
 
-When using or citing the work, you should not imply endorsement by the author or the affirmer.
+No additional restrictions — You may not apply legal terms or technological measures that
+legally restrict others from doing anything the license permits.
 
-This license is acceptable for Free Cultural Works.
+Notices:
-For more Information:
-https://creativecommons.org/publicdomain/zero/1.0/
 
+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/

mod.conf

@@ -1,3 +0,0 @@
-name = tnt
-description = Minetest Game mod: tnt
-optional_depends = fire