add teleporter and db mods

worldmods/db/init.lua

@@ -0,0 +1,113 @@
+--This is a Libary for minetest mods
+--author: addi <addi at king-arhtur dot eu>
+--for doku see : https://project.king-arthur.eu/projects/db/wiki
+--license: LGPL v3
+local modpath= minetest.get_modpath("db");
+dofile(modpath.."/playerDB.lua")
+DB = {}
+DB.__index = DB
+setmetatable(DB, {
+  __call = function (cls, ...)
+    return cls.new(...)
+  end,
+})
+function DB.new(strategies)
+	local self = setmetatable({}, DB)
+	if strategies == nil then
+		print("WARNING: strategies is nil, so the database is only temporary aviable, and will deleted after shutdown")
+	end
+	self.strategies = strategies or {}
+	if self.strategies.fs then
+		print("safing database to filesystem")
+		local dir ="";
+		if self.strategies.fs.place == "world" then dir = minetest.get_worldpath() else dir = self.strategies.fs.place end
+		self.file = dir.."/"..self.strategies.fs.name.."."..self.strategies.fs.form
+	end
+	if self.strategies.mysql then
+		print("using existing mysql Table is currently not ready")
+	end
+	
+	
+	
+	self.storage = {};
+	self:load()
+	print("new instance of DB created")
+	return self
+end
+
+function DB:save()
+	if self.strategies.fs then
+		local output = io.open(self.file,'w')	
+		if self.strategies.fs.form == "json" then
+			output:write(minetest.write_json(self.storage,true));
+		elseif self.strategies.fs.form == "minetest" then
+			output:write(minetest.serialize(self.storage));
+		end
+		io.close(output)
+	end
+	if self.strategies.mysql then
+		print("mysql is not ready currently")
+	end
+end
+
+function DB:load()
+if self.strategies.fs then
+	print("loading DB from file"..self.file)
+	local input = io.open(self.file, "r")
+	local data = nil
+	if input then
+		data = input:read('*all')
+	end
+	if data and data ~= "" then
+		if self.strategies.fs.form == "json" then
+		local json = minetest.parse_json(data);
+		self.storage = json or {}
+		elseif self.strategies.fs.form == "minetest" then
+		local serialize = minetest.deserialize(data);
+		self.storage = serialize or {}
+		end
+		io.close(input)
+	end
+end
+if self.strategies.mysql then
+	print("mysql is not ready currently")
+end
+end
+
+function DB:set(key,value)
+	assert(type(key) == "string","param 1 key must be a string!");
+	assert(type(value) == "string" or type(value) == "number" or type(value) == "table" or type(value) == "boolean","param 2 default must be a string, number, table or a boolean value. Userdata,functions or nil is not alowed!")
+
+	self.storage[key]=value;
+	self:save();
+	return true;
+end
+
+
+function DB:get(player,key,default)
+	assert(type(key) == "string","param 1 key have to be a string!");
+	assert(type(default) == "string" or type(default) == "number" or type(default) == "table" or type(default) == "boolean","param 2 default must be a string, number, table or a boolean value. Userdata,functions or nil is not alowed!")
+
+	if self.storage[player] and self.storage[player][key] then
+		return self.storage[player][key]	
+	end
+	
+	print("nothing found, returning default")
+			return default
+end
+
+function DB:getAll(default)
+	assert(type(player) == "string" or player:is_player(),"param 1 player must be the playername or a player object!");
+	assert(type(default) == "string" or type(default) == "number" or type(default) == "table" or type(default) == "boolean","param 3 default must be a string, number, table or a boolean value. Userdata,functions or nil is not alowed!")
+	if  type(player) ~= "string" then
+		player = player:get_player_name();
+	end
+
+	if self.storage[player] then
+		return self.storage[player]	
+	end
+	
+	print("nothing found, returning default")
+			return default
+end
+-------------------------------------------------------

worldmods/db/playerDB.lua

@@ -0,0 +1,137 @@
+
+playerDB = {}
+playerDB.__index = playerDB
+setmetatable(playerDB, {
+  __call = function (cls, ...)
+    return cls.new(...)
+  end,
+})
+function playerDB.new(strategies)
+	local self = setmetatable({}, playerDB)
+	if strategies == nil then
+		print("WARNING: strategies is nil, so the database is only temporary aviable, and will deleted after shutdown")
+	end
+	self.strategies = strategies or {}
+	if self.strategies.fs then
+		print("safing database to filesystem")
+		local dir ="";
+		if self.strategies.fs.place == "world" then dir = minetest.get_worldpath() else dir = self.strategies.fs.place end
+		self.file = dir.."/"..self.strategies.fs.name.."."..self.strategies.fs.form
+	end
+	if self.strategies.mysql then
+		print("using existing mysql Table is currently not ready")
+	end
+	
+	
+	
+	self.storage = {};
+	self:load()
+	print("new instance of playerDB created")
+	return self
+end
+
+function playerDB:save()
+	if self.strategies.fs then
+		local output = io.open(self.file,'w')	
+		if self.strategies.fs.form == "json" then
+			output:write(minetest.write_json(self.storage,true));
+		elseif self.strategies.fs.form == "minetest" then
+			output:write(minetest.serialize(self.storage));
+		end
+		io.close(output)
+	end
+	if self.strategies.mysql then
+		print("mysql is not ready currently")
+	end
+end
+
+function playerDB:load()
+if self.strategies.fs then
+	print("loading playerDB from file"..self.file)
+	local input = io.open(self.file, "r")
+	local data = nil
+	if input then
+		data = input:read('*all')
+	end
+	if data and data ~= "" then
+		if self.strategies.fs.form == "json" then
+		local json = minetest.parse_json(data);
+		self.storage = json or {}
+		elseif self.strategies.fs.form == "minetest" then
+		local serialize = minetest.deserialize(data);
+		self.storage = serialize or {}
+		end
+		io.close(input)
+	end
+end
+if self.strategies.mysql then
+	print("mysql is not ready currently")
+end
+end
+
+function playerDB:set(player,key,value)
+print("db:set wurde aufgerufen")
+	assert(type(player) == "string" or player:is_player(),"param 1 player must be the playername or a player object!");
+	assert(type(key) == "string","param 2 key must be a string!");
+	assert(type(value) == "string" or type(value) == "number" or type(value) == "table" or type(value) == "boolean","param 3 default must be a string, number, table or a boolean value. Userdata,functions or nil is not alowed!")
+	if type(player) ~= "string" then
+		player = player:get_player_name();
+	end
+	if not self.storage[player] then
+	self.storage[player] = {};
+	end
+	self.storage[player][key]=value;
+	self:save();
+	return true;
+end
+function playerDB:del(player,key)
+print("db:del wurde aufgerufen")
+print(dump(key))
+	assert(type(player) == "string" or player:is_player(),"param 1 player must be the playername or a player object!");
+	assert(type(key) == "string","param 2 key must be a string!");
+	if type(player) ~= "string" then
+		player = player:get_player_name();
+	end
+	if not self.storage[player] then
+	self.storage[player] = {};
+	end
+	self.storage[player][key]=nil;
+	print("db:wurde geloescht")
+	self:save();
+	return true;
+end
+
+function playerDB:get(player,key,default)
+
+--print("db:get wurde aufgerufen")
+	assert(type(player) == "string" or player:is_player(),"param 1 player must be the playername or a player object!");
+	assert(type(key) == "string","param 2 key have to be a string!");
+	assert(type(default) == "string" or type(default) == "number" or type(default) == "table" or type(default) == "boolean","param 3 default must be a string, number, table or a boolean value. Userdata,functions or nil is not alowed!")
+	if  type(player) ~= "string" then
+		player = player:get_player_name();
+	end
+
+	if self.storage[player] and self.storage[player][key] then
+		return self.storage[player][key]	
+	end
+	
+	print("nothing found, returning default")
+			return default
+end
+
+function playerDB:getAll(player,default)
+
+--print("db:get wurde aufgerufen")
+	assert(type(player) == "string" or player:is_player(),"param 1 player must be the playername or a player object!");
+	assert(type(default) == "string" or type(default) == "number" or type(default) == "table" or type(default) == "boolean","param 3 default must be a string, number, table or a boolean value. Userdata,functions or nil is not alowed!")
+	if  type(player) ~= "string" then
+		player = player:get_player_name();
+	end
+
+	if self.storage[player] then
+		return self.storage[player]	
+	end
+	
+	print("nothing found, returning default")
+			return default
+end

worldmods/teleporter/README.md

@@ -0,0 +1,87 @@
+# MINETEST MOD teleporter #
+-----------------------------------------------------------------
+
+This mod makes it possible for players to teleport to other (known) destinations.
+
+## How it Works: ##
+This mod adds 2 new blocks (nodes) to the game. These are a teleporter and a receiver.
+
+A teleporter teleports players, or items to the choose receiver
+a teleporter must be linked to a receiver first, before you can use it.
+One teleporter can only link to one receiver, you have to unlink it first, before using a new receiver.
+a receiver can accessed by many teleporters.
+
+
+### Part 1: the receiver ###
+Craft the receiver using;
+
+```
+copper ingot - steel ingot - copper ingot
+steel ingot  - steel ingot - steel ingot
+```
+
+![craft_receiver.png](https://bitbucket.org/repo/anzb59/images/685871294-craft_receiver.png)
+
+Or use the chat command `/giveme teleporter:receiver`.
+
+Place the receiver at this destination where you want to teleport to.
+You now have to enter a name and a short description
+
+You are maybe allowed to make the receiver public. (read mor at public receiver)
+If you want, you can mark this receiver as favorite (that receivers will marked with a ![teleporter_bookmark.png](https://bitbucket.org/repo/anzb59/images/4022584398-teleporter_bookmark.png) in the list)
+
+### Part 2: the teleporter ###
+Craft the teleporter using;
+
+```
+copper ingot - glass       - copper ingot
+steel ingot  - mese block  - copper ingot
+steel ingot  - steel ingot - steel ingot
+```
+![craft_teleporter.png](https://bitbucket.org/repo/anzb59/images/2855559446-craft_teleporter.png)
+
+Or use the chat command `/giveme teleporter:teleporter`.
+
+After you placed the teleporter all known receivers will apear in the list.
+just choose one and click `OKAY`.
+![setup_teleporter.png](https://bitbucket.org/repo/anzb59/images/1861039821-setup_teleporter.png)
+If you are playing on a server there are maybe some public receivers, you can list it by checking `show the public receivers list`.
+public receivers can be set by other players, or by server admin, there are maybe some intresting destinations.
+----------------------
+
+## Download and installation ##
+make shure you have the [db](https://forum.minetest.net/viewtopic.php?f=11&t=9276) mod installed.
+you can get it [here](https://bitbucket.org/adrido/db/downloads).
+
+
+1. visit [the download page](https://bitbucket.org/kingarthursteam/teleporter/downloads)
+2. download the zip file or the zip file, that comes with db mod.
+3. extract its content to `minetest/mods/`
+4. rename the folder to just `teleporter`
+5. start minetest, select the world where you want to use it, and click `configure`
+6. select teleporter from the list and click `enabled`
+
+If this does not work, have a look into the [official Minetest Wiki](http://dev.minetest.net/Installing_Mods) how to install mods.
+
+----------------------
+
+## Bug reports/ Feature requests ##
+just create a new ticket, or post your question in the minetest forum.
+todo: place link here
+----------------------
+
+## License ##
+![CC BY License](https://i.creativecommons.org/l/by/4.0/88x31.png)  
+This work is licensed under a [Creative Commons Attribution 4.0 International License](http://creativecommons.org/licenses/by/4.0/).
+----------------------
+
+## About: public receivers ##
+A public receiver is a receiver which is marked as public by the server admin.
+They appear in the public receiver list, and every player is allowed to link a teleporter to it.
+
+## About: the runes ##
+The runes on the receiver and teleporter are not magic,or evil they are just `Futhark` (ᚠᚢᚦᚪᚱᛣ)
+Futhark derived from their first six letters of the alphabet: ᚠ, ᚢ, Þ, ᚦ, ᚱ, and ᛣ.
+Futhark is one of the oldest alphabet used in German and England (3rd Century)
+if you are interested, you can look on Wikipedia:
+http://en.wikipedia.org/wiki/Elder_Futhark and http://en.wikipedia.org/wiki/Runes

worldmods/teleporter/depends.txt

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

worldmods/teleporter/functions.lua

@@ -0,0 +1,277 @@
+
+function teleporter.getList(name)
+local receivers = teleporter.getReceiversObj(name);
+local list = "";
+local keys = {};
+        for i, v in ipairs(teleporter.getReceiversArr(name)) do
+			local receiver = receivers[v];
+			if receiver.fav == nil then
+				receiver.fav = 0;
+			end
+			if receiver.pub == nil then
+				receiver.pub = 0;
+			end
+            keys[#keys+1] = receiver.fav..","..receiver.pub..","..minetest.formspec_escape(v)..","..minetest.formspec_escape(receiver.name)..","..minetest.formspec_escape(receiver.desc);
+        end
+
+  list = table.concat(keys,",");
+
+return list;
+end
+
+function teleporter.getReceiversObj(name)
+	return storage:getAll(name,{});
+end
+
+function teleporter.getReceiversArr(name)
+	return generate_key_list(storage:getAll(name,{}));
+end
+
+function teleporter.getreceiverForm(pos)
+	local meta = minetest.get_meta(pos);
+	local public = meta:get_string("public");
+	local fav = meta:get_string("favorite");
+	local form = "size[8,5;]"..
+	"label[0.1,0.0;Receiver Settings]"..
+	"box[0.1,0.6;3,0.05;#FFFFFF]"..
+	"checkbox[0.1,0.6;public;add this receiver to the public list (server-admins only);"..public.."]"..
+	"checkbox[0.1,1;favorite;mark this receiver as favorite;"..fav.."]"..
+	"field[0.3,2.5;4,1;name;Name of this Destination:;${name}]"..
+	"field[0.3,3.5;8,1;desc;a short Description:;${desc}]"..
+	"button_exit[4.1,4.4;4,1;save;OKAY]"..
+	"button_exit[0.1,4.4;4,1;exit;Abort]"..
+	default.gui_slots;
+	return form
+end
+
+function teleporter.receiver_placed(itemstack, placer, pointed_thing)
+	local pos = pointed_thing.above;
+	--print("receiver placed at ".. minetest.pos_to_string(pos));
+	minetest.rotate_node(itemstack, placer, pointed_thing)
+	local meta = minetest.get_meta(pos);
+	-- Get placer's name.
+	local name = placer:get_player_name();
+
+	
+	meta:set_string("formspec",teleporter.getreceiverForm(pos));
+	meta:set_string("infotext", "NOT READY! \nRight-click to initialize!");
+	meta:set_string("owner", name);
+	return itemstack;
+end
+
+function teleporter.receiver_receive_fields(pos, formname, fields, sender)
+	local meta = minetest.get_meta(pos);
+	if teleporter.can_access(pos,sender) then
+		--print("Receiver submit: "..dump(fields));
+		if fields.save and fields.name then
+			
+			meta:set_string("name",fields.name);
+			meta:set_string("desc",fields.desc);
+			meta:set_string("infotext","Receiver: "..fields.name.."\n"..fields.desc)
+			teleporter.change_dest(meta:get_string("owner"),pos,fields.name,fields.desc);
+			local node = minetest.get_node(pos);
+			node.name = "teleporter:receiver_active";
+			minetest.swap_node(pos,node);--zu guter letzt den Receiver anschalten
+			if meta:get_string("public") == "true" then
+				teleporter.change_dest("public",pos,fields.name,fields.desc);
+			else
+				storage:del("public",minetest.pos_to_string(pos));
+			end
+		elseif fields.public then
+			local privs = minetest.get_player_privs(sender:get_player_name())
+			if privs["server"] then
+				meta:set_string("public",fields.public);
+				meta:set_string("formspec",teleporter.getreceiverForm(pos));
+
+			else
+				minetest.chat_send_player(sender:get_player_name(),"Teleporter -!-: you cannot add/remove this receiver to/from the public list. only the server admins are alowed to do it!")
+			end
+		elseif fields.favorite then
+			meta:set_string("favorite",fields.favorite);
+			meta:set_string("formspec",teleporter.getreceiverForm(pos));
+		 
+		end
+	
+	
+	else
+	minetest.chat_send_player(sender:get_player_name(),"Teleporter -!-: you cannot change the settings, only "..meta:get_string("owner").." or the server admins are alowed to do it!")
+	end
+end
+
+function teleporter.receiver_removed(pos)
+	local meta= minetest.get_meta(pos);	
+	local owner = meta:get_string("owner");
+	local public = meta:get_string("public");
+	if owner ~= "" then
+		--print("try to del teleporter of "..dump(owner).." at "..dump(pos))
+		storage:del(owner,minetest.pos_to_string(pos));
+	end
+	if public == "true" then
+		--print("try to del public teleporter of "..dump(owner).."at "..dump(pos))
+		storage:del("public",minetest.pos_to_string(pos));
+	end
+end
+
+function teleporter.change_dest(player,pos,name,desc)
+	local meta = minetest.get_meta(pos);
+	local public = meta:get_string("public")
+	local fav = meta:get_string("favorite");
+	if fav == "true" then
+		fav = 1;
+	else
+		fav = 0;
+	end
+	if public == "true" then
+		public = 1;
+	else
+		public = 0;
+	end
+	local data = {};
+	data.fav = fav;
+	data.pub = public;
+	data.name = name;
+	data.desc = desc;
+	data.dest = minetest.pos_to_string(pos);
+	storage:set(player,minetest.pos_to_string(pos),data);--yay thats all :-)
+	end
+teleporter.types = {"public","private"};
+
+function teleporter.getform(pos)
+	local meta = minetest.get_meta(pos);
+	local item = meta:get_int("item");
+	local mode = meta:get_int("mode") or 0;
+	local name = meta:get_string("owner");
+	local public = meta:get_string("public")
+	local form = "";
+	if mode == 0 or mode == nil then --mode 0 means choose a receiver from the list
+		local list = "";
+		if public == "true" then
+			list=teleporter.getList("public");
+		else
+			list = teleporter.getList(name);
+		end
+		if list == "" then
+		list = "1,1,____pos____,_____Name_____,_____Description_____"
+		else
+		list = "1,1,____pos____,_____Name_____,_____Description_____,"..list
+		end
+		form = "size[10,7;]"..
+		"label[0.1,0.0;Chose a Receiver from the list:]"..
+		"box[0.1,0.6;6,0.05;#FFFFFF]"..
+		"checkbox[0.1,0.6;public;show the Public Receiver list;"..public.."]"..
+		"label[0.1,1.3;Known Receivers: ]"..
+		"tablecolumns[image,tooltip=favorite,1=teleporter_bookmark.png;image,tooltip=public receiver,1=teleporter_world.png;text,tooltip=Coordinates,align=right;text,tooltip=Name;text,tooltip=Description]"..
+		"table[0.1,1.7;9.7,4.5;dest;"..list..";"..item.."]"..
+		"button[0.1,6.2;5.7,1;reload;reload list]"..
+		"button[6.0,6.2;4.0,1;save_dest;OKAY]";
+	else --mode 1 means the teleporter has a destination, an can be used
+		form = "size[9,6;]"..
+		"label[0.1,0.0;Teleporter Settings]"..
+		"box[0.1,0.6;3,0.05;#FFFFFF]"..
+		"label[0.1,1;Owner: "..meta:get_string("owner").."]"..
+		"label[0.1,1.3;Uses Public Receiver: "..public.."]"..
+		"label[0.1,2;Destination: "..meta:get_string("coords").."]"..
+		"label[0.1,2.3;Name: "..meta:get_string("name").."]"..
+		"label[0.1,2.6;Description: "..meta:get_string("desc").."]"..
+		"button[0.1,5;5.7,1;unlink;Unlink destination and choose a new one]"..
+		"button_exit[6.0,5;3.0,1;save;OKAY]";
+	end
+	return form	
+end
+
+function teleporter.placed(itemstack, placer, pointed_thing)
+	local pos = pointed_thing.above;
+	minetest.rotate_node(itemstack, placer, pointed_thing)
+	local meta = minetest.get_meta(pos)
+	local name = placer:get_player_name();
+	meta:set_int("item",1);--the default
+	meta:set_int("type",1);
+	meta:set_string("owner", name);
+	meta:set_string("infotext","Teleporter offline");
+	meta:set_string("formspec",teleporter.getform(pos,name));
+	return itemstack;
+end
+		
+
+
+
+
+
+
+--alias teleporter:teleporter_pad to teleporter:teleporter
+
+function teleporter.received_fields(pos, formname, fields, sender)
+	local meta = minetest.get_meta(pos);
+	local name = meta:get_string("owner");
+	if teleporter.can_access(pos,sender) then
+		print(dump(fields));
+
+		
+		
+		--print("Player "..sender:get_player_name().." submitted fields "..dump(fields));
+		if fields.reload then
+			meta:set_string("formspec",teleporter.getform(pos));
+			meta:set_int("item",1);
+		elseif fields.unlink then
+			meta:set_int("mode",0);
+			meta:set_int("item",0);
+			meta:set_string("formspec",teleporter.getform(pos));
+			meta:set_string("infotext","Teleporter offline");--den infotext setzen
+			local node = minetest.get_node(pos);
+			node.name = "teleporter:teleporter";
+			minetest.swap_node(pos,node);--zu guter letzt den Teleporter ausshalten.
+		elseif fields.dest then
+			local event = minetest.explode_table_event(fields.dest);
+			if meta:get_string("public") == "true" then
+				name = "public"
+			end
+			--print("wurde gesplitted",dump(event));
+			meta:set_int("item",event.row);
+			meta:set_string("coords",teleporter.getReceiversArr(name)[event.row-1]);--vom event index nochmal eins abziehen, weil ja der erste eintrag none ist.
+			--print("Receivers list:"..dump(teleporter.getReceiversArr(name)));
+			meta:set_string("formspec",teleporter.getform(pos));--no need for recreate formspec
+			
+			
+		elseif fields.save_dest	then --ok jetzt muss alles ueber den gewahlten Receiver gespeichert werden
+			local coords = meta:get_string("coords");
+			--print("save_dest");
+			if coords == "" then --wenn keine coords festgelegt sind
+				--meta:set_string("formspec",teleporter.getform(pos));
+				meta:set_string("infotext","Teleporter offline");--den infotext setzen
+				minetest.swap_node(pos,{name="teleporter:teleporter"});--zu guter letzt den Teleporter ausshalten.
+			else
+				if meta:get_string("public") == "true" then
+				name = "public"; --work temprarly with "public" as name
+				end
+				local receiver = storage:get(name,coords,{name="none",desc="No Receiver selected."});
+				--print("Receiver: "..dump(receiver),"coords:"..dump(coords),"player:"..dump(name));
+				meta:set_int("mode",1);--modus auf 1 setzen
+				meta:set_string("name",receiver.name);
+				meta:set_string("desc",receiver.name);
+				meta:set_string("formspec",teleporter.getform(pos));--formular neu generieren
+				meta:set_string("infotext","Teleport to "..receiver.name.."\n"..receiver.desc);--den infotext setzen
+				local node = minetest.get_node(pos);
+				node.name = "teleporter:teleporter_active";
+				minetest.swap_node(pos,node);--zu guter letzt den Teleporter aktivschalten.
+			end
+		elseif fields.public then
+			meta:set_int("item",0);
+			meta:set_string("public",fields.public);
+			meta:set_string("formspec",teleporter.getform(pos));
+		end
+	else
+	minetest.chat_send_player(sender:get_player_name(),"Teleporter -!-: you cannot change the settings, only "..name.." or the server admins are alowed to do it!")
+	end
+end
+
+
+teleporter.can_access = function(pos,player)
+	local meta = minetest.env:get_meta(pos)
+	local name = player:get_player_name()
+	local privs = minetest.get_player_privs(name)
+	if name == meta:get_string("owner") or privs["server"] then
+		return true
+	end
+	return false
+end
+	

worldmods/teleporter/init.lua

@@ -0,0 +1,70 @@
+    function generate_key_list(t)
+        local keys = {}
+        for k, v in pairs(t) do
+            keys[#keys+1] = k
+        end
+        return keys
+    end
+
+local strategies = {
+fs={name ="teleporters" ,form="json", place="world"},
+}
+storage = playerDB(strategies)
+
+
+teleporter = {}
+teleporter.version = 2.6
+teleporter.active_light = 3;
+teleporter.groups = {oddly_breakable_by_hand=2};
+teleporter.groups2 = {oddly_breakable_by_hand=2,not_in_creative_inventory=1,}
+
+-- config.lua contains configuration parameters
+--dofile(minetest.get_modpath("teleporter").."/config.lua")
+dofile(minetest.get_modpath("teleporter").."/functions.lua")
+dofile(minetest.get_modpath("teleporter").."/nodes.lua")
+
+
+
+
+	
+
+minetest.register_abm(
+	{nodenames = {"teleporter:teleporter_active"},
+	interval = 1,
+	chance = 1,
+	action = function(pos, node, active_object_count, active_object_count_wider)
+		local objs = minetest.env:get_objects_inside_radius(pos, 1)
+		local meta = minetest.get_meta(pos);
+		local owner = meta:get_string("owner");
+		if meta:get_string("public") == "true" then --if the receiver is public change the owner to public
+			owner = "public";
+		end
+		
+		local dest = meta:get_string("coords");
+		for k, obj in pairs(objs) do
+
+			if storage:get(owner,dest,false) then --if the receiver is aviable
+			
+					local topos = minetest.string_to_pos(dest);
+					--minetest.sound_play("teleporter_teleport", {pos = pos, gain = 1.0, max_hear_distance = 2,})
+					obj:setpos({x=topos.x,y=topos.y-0.5,z=topos.z})
+					minetest.sound_play("teleporter_teleport", {pos = topos, gain = 1.0, max_hear_distance = 2,})
+
+			else
+
+				local err = "Error 404: no receiver pad at "..dest.." found. maybe its dug?\n"..
+				"If you are shure there is a receiver, ask a server admin, you may found a bug!"
+				meta:set_string("infotext", err);
+				minetest.swap_node(pos,{name="teleporter:teleporter"});
+
+				meta:set_string("formspec",teleporter.getform(pos,owner));
+				if obj:is_player() then
+					minetest.chat_send_player(obj:get_player_name(),err);
+					
+					minetest.sound_play("no_service", {pos = pos, gain = 0.5, max_hear_distance = 2,})
+				end
+			end
+		end
+	end	
+})
+

worldmods/teleporter/license.txt

@@ -0,0 +1,502 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+           How to Apply These Terms to Your New Libraries
+
+  If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the library's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!

worldmods/teleporter/nodes.lua

@@ -0,0 +1,135 @@
+--[[
+minetest.register_craft({
+	output = 'teleporter:teleporter_pad',
+	recipe = {
+                {'moreores:copper_ingot', 'default:glass', 'moreores:copper_ingot'},
+                {'moreores:copper_ingot', 'moreores:gold_block', 'moreores:copper_ingot'},
+                {'moreores:copper_ingot', 'mesecons_powerplant:power_plant', 'moreores:copper_ingot'},
+        }
+})
+]]
+
+minetest.register_craft({
+	output = 'teleporter:teleporter',
+	recipe = {
+		{'default:copper_ingot', 'default:glass', 'default:copper_ingot'},
+		{'default:steel_ingot', 'default:mese', 'default:steel_ingot'},
+		{'default:steel_ingot', 'default:gold_ingot', 'default:steel_ingot'},
+	}
+})
+
+minetest.register_craft({
+	output = 'teleporter:receiver',
+	recipe = {
+		{'', '', ''},
+		{'default:copper_ingot', 'default:steel_ingot', 'default:copper_ingot'},
+		{'default:steel_ingot', 'default:steel_ingot', 'default:steel_ingot'},
+	}
+})
+
+--TELEPORTER
+
+minetest.register_node("teleporter:teleporter", {
+	description = "Teleporter Pad",
+	tiles = {
+		"teleporter.png",
+		"default_stone.png"
+
+	},
+	drawtype = "nodebox",
+	paramtype = "light",
+	paramtype2 = "facedir",
+	groups = teleporter.groups,
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{ -0.5, -0.4375, -0.5, 0.5,	-0.5, 0.5 },
+		},
+	},
+	sounds = default.node_sound_stone_defaults(),
+
+	on_place = teleporter.placed,
+
+    on_receive_fields = teleporter.received_fields,
+	
+	can_dig = teleporter.can_access
+})
+
+minetest.register_node("teleporter:teleporter_active", {
+	description = "Teleporter Pad (cheater!)",
+	tiles = {
+		"teleporter_active.png",
+		"default_stone.png"
+
+	},
+	drawtype = "nodebox",
+	paramtype = "light",
+	paramtype2 = "facedir",
+	light_source = teleporter.active_light,
+	groups = teleporter.groups2,
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{ -0.5, -0.4375, -0.5, 0.5,	-0.5, 0.5 },
+		},
+	},
+	drop = "teleporter:teleporter",
+	sounds = default.node_sound_stone_defaults(),
+
+
+
+    on_receive_fields = teleporter.received_fields,
+	
+	can_dig = teleporter.can_access
+})
+
+--RECEIVER
+
+minetest.register_node("teleporter:receiver", {
+	description = "Receiver Pad",
+	tiles = {
+		"teleporter_receiver.png",
+		"default_stone.png"
+	},
+	drawtype = "nodebox",
+	paramtype = "light",
+	paramtype2 = "facedir",
+	groups = teleporter.groups,
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{ -0.5, -0.4375, -0.5, 0.5, -0.5, 0.5 },
+		},
+	},
+	sounds = default.node_sound_stone_defaults(),
+	on_place = teleporter.receiver_placed, --minetest.rotate_node, --used to rotate the node does not work correctly!
+	--after_place_node = , --used to set metadata
+	on_receive_fields = teleporter.receiver_receive_fields,
+	can_dig =  teleporter.can_access,
+	on_destruct = teleporter.receiver_removed,
+})
+
+minetest.register_node("teleporter:receiver_active", {
+	description = "Receiver Pad (cheater!)",
+	tiles = {
+		"teleporter_receiver_active.png",
+		"default_stone.png"
+	},
+	drawtype = "nodebox",
+	paramtype = "light",
+	paramtype2 = "facedir",
+	light_source = teleporter.active_light,
+	groups = teleporter.groups2,
+	drop = "teleporter:receiver",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{ -0.5, -0.4375, -0.5, 0.5, -0.5, 0.5 },
+		},
+	},
+	sounds = default.node_sound_stone_defaults(),
+	after_place_node = teleporter.receiver_placed,
+	on_receive_fields = teleporter.receiver_receive_fields,
+	can_dig =  teleporter.can_access,
+	on_destruct = teleporter.receiver_removed,
+})

worldmods/teleporter/textures/license.txt

@@ -0,0 +1,4 @@
+2 images taken from the open icon libary:
+
+teleporter_world.png / famfamfam-silk / CC-BY-2.5 or CC-BY-3.0
+teleporter_bookmark.png / intrigue / GPLv2