initial commit - Telemosaic by SaKeL - alpha

README.md

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+Telemosaic [telemosaic]
+=======================
+
+A Minetest mod for user-generated teleportation pads.
+
+Version: 0.5.0
+
+License:
+  Code: LGPL 2.1 (see included LICENSE file)
+  Textures: CC-BY-SA (see http://creativecommons.org/licenses/by-sa/4.0/)
+
+Report bugs or request help on the forum topic.
+
+Description
+-----------
+
+This is a mod for MineTest. It provides teleportation pads, called
+"beacons". Unlike other teleportation mods, no menus or GUIs are used;
+you set the destination with a simple "key" item. There is no
+tooltip for the destination either, so signs are recommended.
+
+Another difference is the limited default range of the beacons.
+To increase the range, you need to place "extenders" around the beacon.
+The extenders come in different colors, allowing the extenders to
+form a pretty pattern; hence the name "telemosaic".
+
+Current behavior
+----------------
+
+Beacons are created with 2 diamonds, 3 obsidian blocks, and a wooden
+door: first row diamond, door, diamond; second row the obsidian blocks.
+
+Right-clicking a beacon with a default mese crystal fragment remembers
+the position in the fragment, which turns into a telemosaic key.
+Right-clicking a second beacon with the key sets up a teleportation
+route from the second beacon to the first beacon. To set up a return
+path, right-click the second beacon with the fragment, and the first
+beacon with the resulting key again.
+
+The beacons do not need to be strictly paired this way: rings or
+star-shaped networks are also possible. Each beacon has only a
+single destination, but can itself be the destination of several
+others.
+
+Beacons will check that their destination is sane: the destination
+still needs to be a beacon, and the two nodes above it should be
+clear for walking / standing in. If your Minetest version supports
+it, the beacon will emerge the area prior to checking and teleporting.
+Emerging is merely a convenience, though.
+
+Beacons have a maximum range of 20 nodes. If the destination is
+too far away, the beacon will turn red and will not function.
+To extend the range for a beacon, place "extenders" next to it,
+within a 7x7 horizontal square centered on the beacon.
+
+Extenders come in three tiers: tier 1 extends all affected beacons
+by 5 nodes, tier 2 by 20 nodes, and tier 3 by 80 nodes. Placing
+or digging extenders will update affected beacons.
+
+Tier 1 extenders are crafted by placing an obsidian block, a wooden
+door, and another obsidian block in a horizontal row. Tier 2 extenders
+are crafted with an obsidian block in the middle, surrounded by a cross
+of four tier 1 extenders. Tier 3 extenders are crafted with an obsidian
+block surrounded by four tier 2 extenders.
+
+Extenders can be colored with any of the dyes found in the dye mod.
+Colored extenders work just like regular extenders, both for
+teleporting and for recipes. To "uncolor" an extender, dye it grey.
+
+Future plans
+------------
+
+* Particle and sound effects
+* Protected beacons (will not teleport if protected)
+
+Dependencies
+------------
+* default
+* doors
+* dye (optional)
+
+Installation
+------------
+
+Unzip the archive, rename the folder to to `bewarethedark` and
+place it in minetest/mods/
+
+(  Linux: If you have a linux system-wide installation place
+    it in ~/.minetest/mods/.  )
+
+(  If you only want this to be used in a single world, place
+    the folder in worldmods/ in your worlddirectory.  )
+
+For further information or help see:
+http://wiki.minetest.com/wiki/Installing_Mods

api.lua

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+local enable_particles = minetest.settings:get_bool("enable_particles")
+
+telemosaic = {}
+telemosaic.extender_ranges = {
+	-- not adding beacons here, since they don"t extend
+	["telemosaic:extender_one"] = 5,
+	["telemosaic:extender_two"] = 20,
+	["telemosaic:extender_three"] = 80
+}
+telemosaic.strengths = { "one", "two", "three" }
+
+function telemosaic.effect_departure(pos)
+	minetest.sound_play("telemosaic_set", {
+		pos = pos,
+		max_hear_distance = 8,
+		gain = 1
+	})
+
+	if not enable_particles then return end
+
+	minetest.add_particlespawner({
+		amount = 100,
+		time = 0.25,
+		minpos = {x=pos.x, y=pos.y+0.3, z=pos.z},
+		maxpos = {x=pos.x, y=pos.y+2, z=pos.z},
+		minvel = {x = 1,  y = -6,  z = 1},
+		maxvel = {x = -1, y = -1, z = -1},
+		minacc = {x = 0, y = -2, z = 0},
+		maxacc = {x = 0, y = -6, z = 0},
+		minexptime = 0.1,
+		maxexptime = 1,
+		minsize = 0.5,
+		maxsize = 1.5,
+		texture = "telemosaic_particle_departure.png^[transform"..math.random(0,3),
+		glow = 15,
+	})
+end
+
+function telemosaic.effect_arrival(pos)
+	minetest.sound_play("telemosaic_teleport", {
+		pos = pos,
+		max_hear_distance = 8,
+		gain = 1
+	})
+	
+	if not enable_particles then return end
+
+	minetest.add_particlespawner({
+		amount = 100,
+		time = 0.25,
+		minpos = {x=pos.x, y=pos.y+0.3, z=pos.z},
+		maxpos = {x=pos.x, y=pos.y+2, z=pos.z},
+		minvel = {x = -1, y = 1, z = -1},
+		maxvel = {x = 1,  y = 6,  z = 1},
+		minacc = {x = 0, y = -2, z = 0},
+		maxacc = {x = 0, y = -6, z = 0},
+		minexptime = 0.1,
+		maxexptime = 1,
+		minsize = 0.5,
+		maxsize = 1.5,
+		texture = "telemosaic_particle_arrival.png^[transform"..math.random(0,3),
+		glow = 15,
+	})
+end
+
+function telemosaic.get_formspec(pos, table)
+	local meta = minetest.get_meta(pos)
+	local arrivals_tbl = meta:get_string("arrivals_tbl")
+	local pos2_str = meta:get_string("dest_pos")
+	local pos2 = minetest.string_to_pos(pos2_str)
+	arrivals_tbl = minetest.deserialize(arrivals_tbl)
+	if not arrivals_tbl then arrivals_tbl = {} end
+	local range = table.range or 0
+	local bname = meta:get_string("bname")
+	if not bname or bname == "" then
+		bname = "beacon at: "..minetest.formspec_escape(minetest.pos_to_string(pos))
+	end
+	
+	local textlist = ""
+	for ipos, ival in pairs(arrivals_tbl) do
+		textlist = textlist..minetest.formspec_escape(ipos)..": "..ival..","
+	end
+
+	local button_teleport = ""
+
+	local pos2_colorize = minetest.colorize("#ff0000", pos2_str)
+
+	if pos2 then
+		local meta2 = minetest.get_meta(pos2)
+		local bname2 = meta2:get_string("bname")
+		pos2_colorize = minetest.colorize("#00ff00", bname2)
+		button_teleport = "button_exit[0.1,7.5;2.4,1.5;teleport;Teleport Now]"
+	end
+
+	-- dynamic formspec
+	local formspec = "size[12,8.5]"..
+		default.gui_bg..
+		default.gui_bg_img..
+		default.gui_slots..
+		"label[0,0.5;beacon position: "..minetest.pos_to_string(pos).."]"..
+		"label[0,1;destinaton: "..pos2_colorize.."]"..
+		"label[0,1.5;range: "..range.." blocks]"..
+		"field[0.34,2.7;4,1;bname;beacon name:;"..bname.."]"..
+		button_teleport..
+		"button_exit[2.5,7.5;2.4,1.5;saveandclose;Save & Close]"..
+		"label[5,0;Arrivals from ( x | y | z ):]"..
+		"textlist[5,0.5;6.7,8;arrivals;"..textlist..";1;false]"
+
+	return formspec
+end
+
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+	local mod_pos_pos2 = formname:split(":")
+
+	if fields.bname and mod_pos_pos2[1] == "telemosaic" then
+		local bname = fields.bname
+		local pos = minetest.string_to_pos(mod_pos_pos2[2])
+		local meta = minetest.get_meta(pos)
+		local pos2 = minetest.string_to_pos(mod_pos_pos2[3])
+		
+		meta:set_string("bname", bname)
+		if pos2 then
+			local meta2 = minetest.get_meta(pos2)
+			local arrivals_tbl2 = meta2:get_string("arrivals_tbl")
+			arrivals_tbl2 = minetest.deserialize(arrivals_tbl2)
+			if not arrivals_tbl2 then arrivals_tbl2 = {} end
+
+			arrivals_tbl2[minetest.pos_to_string(pos)] = minetest.formspec_escape(bname)
+			meta2:set_string("arrivals_tbl", minetest.serialize(arrivals_tbl2))
+		end
+
+		if fields.teleport then
+			local range = meta:get_int("range")
+
+			if pos2 then
+				if math.floor(vector.distance(pos, pos2)) <= range then
+					pos2 = {x = pos2.x, y = pos2.y + 1, z = pos2.z}
+					
+					-- attempt to emerge the target area before the player gets there
+					local vpos = vector.new(pos2)
+					minetest.get_voxel_manip():read_from_map(vpos, vpos)
+					if not minetest.get_node_or_nil(pos2) then
+						print("emerge area")
+						minetest.emerge_area(vector.subtract(vpos, 80), vector.add(vpos, 80))
+					end
+
+					minetest.after(5, function()
+						player:setpos(pos2)
+						telemosaic.effect_arrival(pos2)
+						telemosaic.effect_departure(pos)
+					end)
+				else
+					minetest.chat_send_player(player:get_player_name(), "Not enough power, destination is too far. Beacon needs "..math.floor(vector.distance(pos, pos2)) - range.." more power.")
+				end
+			end
+		end
+
+	end
+end)
+
+-- extenders
+function telemosaic.extender_after_place(pos, placer, itemstack, pointed_thing)
+	local positions = minetest.find_nodes_in_area_under_air(
+		{x = pos.x - 3, y = pos.y, z = pos.z - 3},
+		{x = pos.x + 3, y = pos.y, z = pos.z + 3},
+		{"telemosaic:beacon_off", "telemosaic:beacon", "telemosaic:beacon_err"})
+	local meta = minetest.get_meta(pos)
+	local playername = placer:get_player_name()
+	local nodename = itemstack:get_name()
+	if not minetest.registered_nodes[nodename] then return end
+
+	local description = minetest.registered_nodes[nodename]["description"]
+
+	local power = telemosaic.extender_ranges[nodename]
+
+	for i, bpos in ipairs(positions) do
+		local bnode = minetest.get_node(bpos)
+		local bmeta = minetest.get_meta(bpos)
+		if not bnode then return end
+		local bnodename = bnode.name
+		if not minetest.registered_nodes[bnodename] then return end
+		local bdescription = minetest.registered_nodes[bnodename]["description"]
+		local bowner = bmeta:get_string("owner")
+		local brange = bmeta:get_int("range")
+		brange = brange + power
+		bmeta:set_int("range", brange)
+		telemosaic.set_status(bpos, placer)
+
+		bmeta:set_string("infotext", bdescription.."\nowner: "..bowner.."\nrange: "..brange.." blocks\nright-click to update info or with mese crystal fragment setup departure position")
+	end
+
+	meta:set_string("owner", playername)
+	meta:set_string("infotext", description.."\nowner: "..playername)
+end
+
+function telemosaic.extender_on_destruct(pos)
+	local node = minetest.get_node(pos)
+	if not node then return end
+	local meta = minetest.get_meta(pos)
+	local nodename = node.name
+	if not minetest.registered_nodes[nodename] then return end
+	local power = telemosaic.extender_ranges[nodename]
+	local positions = minetest.find_nodes_in_area_under_air(
+		{x = pos.x - 3, y = pos.y, z = pos.z - 3},
+		{x = pos.x + 3, y = pos.y, z = pos.z + 3},
+		{"telemosaic:beacon_off", "telemosaic:beacon", "telemosaic:beacon_err"})
+
+	for i, bpos in ipairs(positions) do
+		local bnode = minetest.get_node(bpos)
+		local bmeta = minetest.get_meta(bpos)
+		if not bmeta or not bnode then return end
+		local bnodename = bnode.name
+		if not minetest.registered_nodes[bnodename] then return end
+		local bdescription = minetest.registered_nodes[bnodename]["description"]
+		local bowner = bmeta:get_string("owner")
+		local brange = bmeta:get_int("range")
+		brange = brange - power
+		if brange < 0 then brange = 0 end
+		bmeta:set_int("range", brange)
+		telemosaic.set_status(bpos)
+
+		bmeta:set_string("infotext", bdescription.."\nowner: "..bowner.."\nrange: "..brange.." blocks\nright-click to update info or with mese crystal fragment setup departure position")
+	end
+end
+
+-- beacons
+function telemosaic.get_range_from_extenders(be_pos)
+	local positions = minetest.find_nodes_in_area_under_air(
+		{x = be_pos.x - 3, y = be_pos.y, z = be_pos.z - 3},
+		{x = be_pos.x + 3, y = be_pos.y, z = be_pos.z + 3},
+		{"telemosaic:extender_one", "telemosaic:extender_two", "telemosaic:extender_three"})
+
+	local range = 0
+
+	for i, ex_pos in ipairs(positions) do
+		local inode = minetest.get_node(ex_pos)
+		if not inode then return end
+
+		range = range + telemosaic.extender_ranges[inode.name]
+	end
+
+	return range
+end
+
+function telemosaic.set_status(pos)
+	local meta = minetest.get_meta(pos)
+	if not meta then return end
+	local range = meta:get_int("range")
+	local pos2 = meta:get_string("dest_pos")
+	local state = meta:get_string("state")
+	local arrivals_tbl = meta:get_string("arrivals_tbl")
+	arrivals_tbl = minetest.deserialize(arrivals_tbl)
+	if not arrivals_tbl then arrivals_tbl = {} end
+
+	-- not enough energy (err)
+	if range <= 0 and
+		 state ~= "err" then
+		minetest.swap_node(pos, { name = "telemosaic:beacon_err" })
+		meta:set_string("state", "err")
+	
+	-- configured beacon (off)
+	elseif range > 0 and
+				 pos2 == "not configured" and
+				 state ~= "off" and
+				 #arrivals_tbl == 0 then
+		minetest.swap_node(pos, { name = "telemosaic:beacon_off" })
+		meta:set_string("state", "off")
+
+	-- not configured beacon (on)
+	elseif range > 0 and
+				 pos2 ~= "not configured" and
+				 state ~= "on" then
+		minetest.swap_node(pos, { name = "telemosaic:beacon" })
+		meta:set_string("state", "on")
+	end
+
+end
+
+function telemosaic.beacon_after_place(pos, placer, itemstack, pointed_thing)
+	local meta = minetest.get_meta(pos)
+	local nodename = itemstack:get_name()
+	local playername = placer:get_player_name()
+	local range = telemosaic.get_range_from_extenders(pos)
+	if not minetest.registered_nodes[nodename] then return end
+
+	local bname = "beacon at: "..minetest.formspec_escape(minetest.pos_to_string(pos))
+
+	local description = minetest.registered_nodes[nodename]["description"]
+
+	meta:set_int("range", range)
+	meta:set_string("bname", bname)
+	meta:set_string("owner", playername)
+	meta:set_string("state", "off")
+	meta:set_string("dep_pos", "")
+	meta:set_string("dest_pos", "not configured")
+	meta:set_string("arrivals_tbl", "{}")
+	meta:set_string("infotext", description.."\nowner: "..playername.."\nrange: "..range.." blocks\nright-click to update info or with mese crystal fragment setup departure position")
+	
+	telemosaic.set_status(pos)
+end
+
+function telemosaic.beacon_rightclick(pos, node, clicker, itemstack, pointed_thing)
+	local meta = minetest.get_meta(pos)
+	local meta_stack = itemstack:get_meta()
+	local ownername = meta:get_string("owner") or "unknown"
+	local clickername = clicker:get_player_name()
+	local nodename = node.name
+	local stackname = itemstack:get_name()
+	local range = telemosaic.get_range_from_extenders(pos)
+	local state = meta:get_string("state")
+	if not minetest.registered_nodes[nodename] then return end
+
+	local description = minetest.registered_nodes[nodename]["description"]
+	meta:set_int("range", range)
+
+	-- departure
+	if stackname == "default:mese_crystal_fragment" and itemstack:get_count() == 1 then
+
+		itemstack:replace("telemosaic:key")
+		meta_stack:set_string("dep_pos", minetest.pos_to_string(pos))
+
+		meta:set_string("infotext", description.."\nowner: "..ownername.."\nrange: "..range.." blocks\nstart pos: "..minetest.pos_to_string(pos).."\nright-click to update info")
+
+	-- destination
+	elseif stackname == "telemosaic:key" then
+		-- get deprature position from item
+		local pos_stack = meta_stack:get_string("dep_pos")
+		pos_stack = minetest.string_to_pos(pos_stack)
+
+		if math.floor(vector.distance(pos_stack, pos)) == 0 then
+			minetest.chat_send_player(clickername, "This is marked as your departure position, you have to mark your destination position now!")
+			return
+		elseif minetest.is_protected(pos, clickername) then
+			minetest.chat_send_player(clickername, "You cannot configure protected beacons!")
+			return
+		end
+
+		-- enough extenders / range
+		-- if math.floor(vector.distance(pos_stack, pos)) <= range then
+		minetest.swap_node(pos, { name = "telemosaic:beacon" })
+		meta:set_string("state", "on")
+		itemstack:replace("default:mese_crystal_fragment")
+
+		-- set arrival pos to departure pos node
+		local meta2 = minetest.get_meta(pos_stack)
+		local bname2 = meta2:get_string("bname")
+		local pos3 = meta2:get_string("dest_pos")
+		pos3 = minetest.string_to_pos(pos3)
+		if pos3 and math.floor(vector.distance(pos3, pos)) ~= 0 then
+			local meta3 = minetest.get_meta(pos3)
+			local arrivals_tbl3 = meta3:get_string("arrivals_tbl")
+			arrivals_tbl3 = minetest.deserialize(arrivals_tbl3)
+			if not arrivals_tbl3 then arrivals_tbl3 = {} end
+			arrivals_tbl3[minetest.pos_to_string(pos_stack)] = nil
+			meta3:set_string('arrivals_tbl', arrivals_tbl3)
+			telemosaic.set_status(pos3)
+		end			
+		local arrivals_tbl = meta:get_string("arrivals_tbl")
+		arrivals_tbl = minetest.deserialize(arrivals_tbl)
+		if not arrivals_tbl then arrivals_tbl = {} end
+
+		arrivals_tbl[minetest.pos_to_string(pos_stack)] = bname2
+
+		arrivals_tbl = minetest.serialize(arrivals_tbl)
+		meta2:set_string("dest_pos", minetest.pos_to_string(pos))
+		meta:set_string("arrivals_tbl", arrivals_tbl)
+
+		telemosaic.set_status(pos_stack)
+		meta:set_string("infotext", description.."\nowner: "..ownername.."\nrange: "..range.." blocks\nend pos: "..minetest.pos_to_string(pos).."\nright-click to update info")
+
+	-- default place_node callback
+	elseif itemstack:get_definition().type == "node" then
+		itemstack = minetest.item_place_node(itemstack, clicker, pointed_thing)
+	else
+		-- mod : pos : pos2
+		-- - pos2 is from itemstack so not always set
+		local formspec = telemosaic.get_formspec(pos, {
+			range = range
+		})
+		local pos2 = meta:get_string("dest_pos")
+		minetest.show_formspec(clickername, "telemosaic:"..minetest.pos_to_string(pos)..":"..pos2, formspec)
+
+		meta:set_string("infotext", description.."\nowner: "..ownername.."\nrange: "..range.." blocks\nright-click to update info")
+	end
+	return itemstack
+end
+
+function telemosaic.beacon_on_destruct(pos)
+	local meta = minetest.get_meta(pos)
+	local pos2 = meta:get_string("dest_pos")
+	pos2 = minetest.string_to_pos(pos2)
+	local arrivals_tbl = meta:get_string("arrivals_tbl")
+	arrivals_tbl = minetest.deserialize(arrivals_tbl)
+	if not arrivals_tbl then arrivals_tbl = {} end
+
+	-- found destination position, will update the meta in destination
+	if pos2 then
+		local meta2 = minetest.get_meta(pos2)
+		local arrivals_tbl2 = meta2:get_string("arrivals_tbl")
+		arrivals_tbl2 = minetest.deserialize(arrivals_tbl2)
+		if not arrivals_tbl2 then arrivals_tbl2 = {} end
+		
+		if arrivals_tbl2[minetest.pos_to_string(pos)] then
+			arrivals_tbl2[minetest.pos_to_string(pos)] = nil
+			arrivals_tbl2 = minetest.serialize(arrivals_tbl2)
+			meta2:set_string("arrivals_tbl", arrivals_tbl2)
+		end
+		
+		meta2:set_string("dest_pos", "not configured")
+		telemosaic.set_status(pos2)
+	end
+
+	for k, v in pairs(arrivals_tbl) do
+		local ipos = minetest.string_to_pos(k)
+		local imeta = minetest.get_meta(ipos)
+		imeta:set_string("dest_pos", "not configured")
+		telemosaic.set_status(ipos)
+	end
+end

crafting.lua

@@ -0,0 +1,37 @@
+minetest.register_craft({
+	output = 'telemosaic:beacon_off',
+	recipe = {
+		{'default:diamond', 'doors:door_wood', 'default:diamond'},
+		{'default:obsidian','default:obsidian','default:obsidian'}
+	}
+})
+minetest.register_craft({
+	output = 'telemosaic:extender_one',
+	recipe = {
+		{"default:diamond","","default:diamond"},
+		{'default:obsidian','doors:door_wood','default:obsidian'}
+	}
+})
+minetest.register_craft({
+	output = 'telemosaic:extender_two',
+	recipe = {
+		{'', 'group:telemosaic_extender_one',''},
+		{'group:telemosaic_extender_one','default:obsidian','group:telemosaic_extender_one'},
+		{'', 'group:telemosaic_extender_one',''}
+	}
+})
+minetest.register_craft({
+	output = 'telemosaic:extender_three',
+	recipe = {
+		{'', 'group:telemosaic_extender_two',''},
+		{'group:telemosaic_extender_two','default:obsidian','group:telemosaic_extender_two'},
+		{'', 'group:telemosaic_extender_two',''}
+	}
+})
+
+-- how to recycle a key
+minetest.register_craft({
+	type = 'shapeless',
+	recipe = {'telemosaic:key'},
+	output = 'default:mese_crystal_fragment'
+})

depends.txt

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

init.lua

@@ -0,0 +1,7 @@
+MOD_NAME = minetest.get_current_modname()
+
+dofile(minetest.get_modpath(MOD_NAME).."/api.lua")
+dofile(minetest.get_modpath(MOD_NAME).."/nodes.lua")
+dofile(minetest.get_modpath(MOD_NAME).."/crafting.lua")
+
+print ("[Mod] Telemosaic Loaded.")

nodes.lua

@@ -0,0 +1,81 @@
+-- extenders come in three strengths
+for num, strength in ipairs(telemosaic.strengths) do
+	minetest.register_node("telemosaic:extender_"..strength, {
+		description = "Telemosaic extender, tier "..num..", extends beacon range by: "..telemosaic.extender_ranges["telemosaic:extender_"..strength].." blocks",
+		tiles = { "telemosaic_extender_"..strength..".png" },
+		is_ground_content = false,
+		groups = { cracky = 2, ["telemosaic_extender_"..strength] = 1 },
+		sounds = default.node_sound_stone_defaults(),
+		after_place_node = telemosaic.extender_after_place,
+		on_destruct = telemosaic.extender_on_destruct,
+	})
+end
+
+-- beacons
+minetest.register_node("telemosaic:beacon_off", {
+	description = "Telemosaic beacon (off)",
+	tiles = {
+		"telemosaic_beacon_off.png",
+		"telemosaic_beacon_off.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+	},
+	is_ground_content = false,
+	groups = { cracky = 2 },
+	sounds = default.node_sound_stone_defaults(),
+	after_place_node = telemosaic.beacon_after_place,
+	on_rightclick = telemosaic.beacon_rightclick,
+	on_destruct = telemosaic.beacon_on_destruct,
+	on_receive_fields = telemosaic.on_receive_fields,
+})
+
+minetest.register_node("telemosaic:beacon", {
+	description = "Telemosaic beacon (on)",
+	tiles = {
+		"telemosaic_beacon_top.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+	},
+	is_ground_content = false,
+	groups = { cracky = 2 },
+	-- groups = { cracky = 2, not_in_creative_inventory = 1 },
+	drop = "telemosaic:beacon_off",
+	sounds = default.node_sound_stone_defaults(),
+	on_rightclick = telemosaic.beacon_rightclick,
+	on_destruct = telemosaic.beacon_on_destruct,
+	on_receive_fields = telemosaic.on_receive_fields,
+	-- on_punch = telemosaic.beacon_on_punch,
+})
+
+minetest.register_node("telemosaic:beacon_err", {
+	description = "Telemosaic beacon (err)",
+	tiles = {
+		"telemosaic_beacon_err.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+		"telemosaic_beacon_side.png",
+	},
+	is_ground_content = false,
+	groups = { cracky = 2 },
+	-- groups = { cracky = 2, not_in_creative_inventory = 1 },
+	drop = "telemosaic:beacon_off",
+	sounds = default.node_sound_stone_defaults(),
+	on_rightclick = telemosaic.beacon_rightclick,
+	on_destruct = telemosaic.beacon_on_destruct,
+	on_receive_fields = telemosaic.on_receive_fields,
+})
+
+-- telemosaic key
+minetest.register_tool("telemosaic:key", {
+	description = "Telemosaic key",
+	inventory_image = "telemosaic_key.png",
+	stack_max = 1,
+	-- groups = { not_in_creative_inventory = 1 },
+})