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			233 lines
		
	
	
		
			7.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			233 lines
		
	
	
		
			7.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
Minetest Lua Mainmenu API Reference 0.5.0
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========================================
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Introduction
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-------------
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The main menu is defined as a formspec by Lua in builtin/mainmenu/
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Description of formspec language to show your menu is in lua_api.txt
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Callbacks
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---------
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core.buttonhandler(fields): called when a button is pressed.
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^ fields = {name1 = value1, name2 = value2, ...}
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core.event_handler(event)
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^ event: "MenuQuit", "KeyEnter", "ExitButton" or "EditBoxEnter"
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Gamedata
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--------
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The "gamedata" table is read when calling core.start(). It should contain:
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{
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	playername     = <name>,
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	password       = <password>,
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	address        = <IP/adress>,
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	port           = <port>,
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	selected_world = <index>, -- 0 for client mode
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	singleplayer   = <true/false>,
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}
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Functions
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---------
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core.start()
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core.close()
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Filesystem:
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core.get_builtin_path()
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^ returns path to builtin root
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core.get_modpath() (possible in async calls)
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^ returns path to global modpath
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core.get_clientmodpath() (possible in async calls)
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^ returns path to global client-side modpath
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core.get_gamepath() (possible in async calls)
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^ returns path to global gamepath
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core.get_texturepath() (possible in async calls)
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^ returns path to default textures
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core.create_dir(absolute_path) (possible in async calls)
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^ absolute_path to directory to create (needs to be absolute)
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^ returns true/false
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core.delete_dir(absolute_path) (possible in async calls)
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^ absolute_path to directory to delete (needs to be absolute)
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^ returns true/false
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core.copy_dir(source,destination,keep_soure) (possible in async calls)
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^ source folder
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^ destination folder
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^ keep_source DEFAULT true --> if set to false source is deleted after copying
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^ returns true/false
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core.extract_zip(zipfile,destination) [unzip within path required]
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^ zipfile to extract
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^ destination folder to extract to
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^ returns true/false
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core.download_file(url,target) (possible in async calls)
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^ url to download
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^ target to store to
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^ returns true/false
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core.get_version() (possible in async calls)
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^ returns current core version
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core.sound_play(spec, looped) -> handle
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^ spec = SimpleSoundSpec (see lua-api.txt)
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^ looped = bool
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core.sound_stop(handle)
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core.get_video_drivers()
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^ get list of video drivers supported by engine (not all modes are guaranteed to work)
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^ returns list of available video drivers' settings name and 'friendly' display name
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^ e.g. { {name="opengl", friendly_name="OpenGL"}, {name="software", friendly_name="Software Renderer"} }
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^ first element of returned list is guaranteed to be the NULL driver
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Formspec:
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core.update_formspec(formspec)
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core.get_table_index(tablename) -> index
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^ can also handle textlists
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core.formspec_escape(string) -> string
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^ escapes characters [ ] \ , ; that can not be used in formspecs
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core.explode_table_event(string) -> table
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^ returns e.g. {type="CHG", row=1, column=2}
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^ type: "INV" (no row selected), "CHG" (selected) or "DCL" (double-click)
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core.explode_textlist_event(string) -> table
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^ returns e.g. {type="CHG", index=1}
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^ type: "INV" (no row selected), "CHG" (selected) or "DCL" (double-click)
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GUI:
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core.set_background(type, texturepath,[tile],[minsize])
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^ type: "background", "overlay", "header" or "footer"
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^ tile: tile the image instead of scaling (background only)
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^ minsize: minimum tile size, images are scaled to at least this size prior
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^   doing tiling (background only)
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core.set_clouds(<true/false>)
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core.set_topleft_text(text)
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core.show_keys_menu()
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core.file_open_dialog(formname,caption)
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^ shows a file open dialog
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^ formname is base name of dialog response returned in fields
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^     -if dialog was accepted "_accepted"
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^^       will be added to fieldname containing the path
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^     -if dialog was canceled "_cancelled"
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^        will be added to fieldname value is set to formname itself
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^ returns nil or selected file/folder
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core.get_screen_info()
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^ returns {
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	density         = <screen density 0.75,1.0,2.0,3.0 ... (dpi)>,
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	display_width   = <width of display>,
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	display_height  = <height of display>,
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	window_width    = <current window width>,
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	window_height   = <current window height>
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	}
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Packages:
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core.get_game(index)
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^ returns {
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	id               = <id>,
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	path             = <full path to game>,
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	gamemods_path    = <path>,
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	name             = <name of game>,
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	menuicon_path    = <full path to menuicon>,
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	DEPRECATED:
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	addon_mods_paths = {[1] = <path>,},
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}
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core.get_games() -> table of all games in upper format (possible in async calls)
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core.get_mapgen_names([include_hidden=false]) -> table of map generator algorithms
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    registered in the core (possible in async calls)
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core.get_mod_info(path)
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^ returns  {
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	name             = "name of mod",
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	type             = "mod" or "modpack",
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	description      = "description",
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	path             = "path/to/mod",
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	depends          = {"mod", "names"},
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	optional_depends = {"mod", "names"},
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}
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Favorites:
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core.get_favorites(location) -> list of favorites (possible in async calls)
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^ location: "local" or "online"
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^ returns {
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	[1] = {
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	clients       = <number of clients/nil>,
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	clients_max   = <maximum number of clients/nil>,
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	version       = <server version/nil>,
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	password      = <true/nil>,
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	creative      = <true/nil>,
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	damage        = <true/nil>,
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	pvp           = <true/nil>,
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	description   = <server description/nil>,
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	name          = <server name/nil>,
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	address       = <address of server/nil>,
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	port          = <port>
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	},
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}
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core.delete_favorite(id, location) -> success
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Logging:
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core.debug(line) (possible in async calls)
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^ Always printed to stderr and logfile (print() is redirected here)
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core.log(line) (possible in async calls)
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core.log(loglevel, line) (possible in async calls)
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^ loglevel one of "error", "action", "info", "verbose"
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Settings:
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core.setting_set(name, value)
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core.setting_get(name) -> string or nil (possible in async calls)
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core.setting_setbool(name, value)
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core.setting_getbool(name) -> bool or nil (possible in async calls)
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core.setting_save() -> nil, save all settings to config file
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Worlds:
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core.get_worlds() -> list of worlds (possible in async calls)
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^ returns {
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	[1] = {
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	path   = <full path to world>,
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	name   = <name of world>,
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	gameid = <gameid of world>,
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	},
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}
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core.create_world(worldname, gameid)
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core.delete_world(index)
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Helpers:
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core.get_us_time()
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^ returns time with microsecond precision
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core.gettext(string) -> string
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^ look up the translation of a string in the gettext message catalog
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fgettext_ne(string, ...)
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^ call core.gettext(string), replace "$1"..."$9" with the given
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^ extra arguments and return the result
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fgettext(string, ...) -> string
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^ same as fgettext_ne(), but calls core.formspec_escape before returning result
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core.parse_json(string[, nullvalue]) -> something (possible in async calls)
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^ see core.parse_json (lua_api.txt)
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dump(obj, dumped={})
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^ Return object serialized as a string
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string:split(separator)
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^ eg. string:split("a,b", ",") == {"a","b"}
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string:trim()
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^ eg. string.trim("\n \t\tfoo bar\t ") == "foo bar"
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core.is_yes(arg) (possible in async calls)
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^ returns whether arg can be interpreted as yes
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minetest.encode_base64(string) (possible in async calls)
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^ Encodes a string in base64.
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minetest.decode_base64(string) (possible in async calls)
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^ Decodes a string encoded in base64.
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Version compat:
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core.get_min_supp_proto()
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^ returns the minimum supported network protocol version
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core.get_max_supp_proto()
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^ returns the maximum supported network protocol version
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Async:
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core.handle_async(async_job,parameters,finished)
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^ execute a function asynchronously
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^ async_job is a function receiving one parameter and returning one parameter
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^ parameters parameter table passed to async_job
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^ finished function to be called once async_job has finished
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^    the result of async_job is passed to this function
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Limitations of Async operations
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 -No access to global lua variables, don't even try
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 -Limited set of available functions
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	e.g. No access to functions modifying menu like core.start,core.close,
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	core.file_open_dialog
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Class reference
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----------------
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Settings: see lua_api.txt
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