-Minetest Lua Modding API Reference 0.4.14
+Minetest Lua Modding API Reference 0.4.15
=========================================
* More information at <http://www.minetest.net/>
* Developer Wiki: <http://dev.minetest.net/>
The `:` prefix can also be used for maintaining backwards compatibility.
### Aliases
-Aliases can be added by using `minetest.register_alias(name, convert_to)`.
+Aliases can be added by using `minetest.register_alias(name, convert_to)` or
+`minetest.register_alias_force(name, convert_to).
This will make Minetest to convert things called name to things called
`convert_to`.
+The only difference between `minetest.register_alias` and
+`minetest.register_alias_force` is that if an item called `name` exists,
+`minetest.register_alias` will do nothing while
+`minetest.register_alias_force` will unregister it.
+
This can be used for maintaining backwards compatibility.
This can be also used for setting quick access names for things, e.g. if
* e.g. `foomod_foothing.png`
* e.g. `foomod_foothing`
-Texture pack directory structure
---------------------------------
-
- textures
- |-- Texture Pack
- | |-- screenshot.png
- | |-- description.txt
- | |-- your_texture_1.png
- | |-- your_texture_2.png
- `-- Another Texture Pack
-
-### Texture Pack
-This is a directory containing the entire contents of a single texture pack.
-It can be chosen more or less freely and will also become the name of the
-texture pack. The name must not be “base”.
-
-### `description.txt`
-A file containing a short description of the texture pack to be shown in the
-texture packs tab.
-
-### `screenshot.png`
-A preview image showing an in-game screenshot of this texture pack; it will be
-shown in the texture packs tab. It should have an aspect ratio of 3:2 and a
-minimum size of 300×200 pixels.
-
-### `your_texture_1.png`, `your_texture_2.png`, etc.
-Any other PNG files will be interpreted as textures. They must have the same
-names as the textures they are supposed to override. For example, to override
-the apple texture of Minetest Game, add a PNG file named `default_apple.png`.
-
-The custom textures do not necceessarily require the same size as their
-originals, but this might be required for a few particular textures. When
-unsure, just test your texture pack in-game.
-
Texture modifiers
-----------------
There are various texture modifiers that can be used
Example: `cobble.png^(thing1.png^thing2.png)`
A texture for `thing1.png^thing2.png` is created and the resulting
-texture is overlaid over `cobble.png`.
+texture is overlaid on top of `cobble.png`.
+
+### Escaping
+Modifiers that accept texture names (e.g. `[combine`) accept escaping to allow
+passing complex texture names as arguments. Escaping is done with backslash and
+is required for `^` and `:`.
+
+Example: `cobble.png^[lowpart:50:color.png\^[mask\:trans.png`
+
+The lower 50 percent of `color.png^[mask:trans.png` are overlaid
+on top of `cobble.png`.
### Advanced texture modifiers
default_sandstone.png^[resize:16x16
+#### `[opacity:<r>`
+ Makes the base image transparent according to the given ratio.
+ r must be between 0 and 255.
+ 0 means totally transparent.
+ 255 means totally opaque.
+
+Example:
+
+ default_sandstone.png^[opacity:127
+
+#### `[invert:<mode>`
+Inverts the given channels of the base image.
+Mode may contain the characters "r", "g", "b", "a".
+Only the channels that are mentioned in the mode string will be inverted.
+
+Example:
+
+ default_apple.png^[invert:rgb
+
#### `[brighten`
Brightens the texture.
default_stone.png^[transformFXR90
#### `[inventorycube{<top>{<left>{<right>`
-`^` is replaced by `&` in texture names.
+Escaping does not apply here and `^` is replaced by `&` in texture names instead.
Create an inventory cube texture using the side textures.
The mask is applied using binary AND.
+#### `[sheet:<w>x<h>:<x>,<y>`
+Retrieves a tile at position x,y from the base image
+which it assumes to be a tilesheet with dimensions w,h.
+
+
#### `[colorize:<color>:<ratio>`
Colorize the textures with the given color.
`<color>` is specified as a `ColorString`.
`<color>` and the alpha of `<color>` multiplied by the alpha of the
texture pixel.
+#### `[multiply:<color>`
+Multiplies texture colors with the given color.
+`<color>` is specified as a `ColorString`.
+Result is more like what you'd expect if you put a color on top of another
+color. Meaning white surfaces get a lot of your new color while black parts don't
+change very much.
+
Sounds
------
Only Ogg Vorbis files are supported.
Examples of sound parameter tables:
- -- Play location-less on all clients
+ -- Play locationless on all clients
{
gain = 1.0, -- default
}
- -- Play location-less to a player
+ -- Play locationless to one player
{
to_player = name,
gain = 1.0, -- default
}
+ -- Play locationless to one player, looped
+ {
+ to_player = name,
+ gain = 1.0, -- default
+ loop = true,
+ }
-- Play in a location
{
- pos = {x=1,y=2,z=3},
+ pos = {x = 1, y = 2, z = 3},
gain = 1.0, -- default
max_hear_distance = 32, -- default, uses an euclidean metric
}
object = <an ObjectRef>,
gain = 1.0, -- default
max_hear_distance = 32, -- default, uses an euclidean metric
- loop = true, -- only sounds connected to objects can be looped
+ loop = true,
}
+Looped sounds must either be connected to an object or played locationless to
+one player using `to_player = name,`
+
### `SimpleSoundSpec`
* e.g. `""`
* e.g. `"default_place_node"`
* e.g. `{}`
-* e.g. `{name="default_place_node"}`
-* e.g. `{name="default_place_node", gain=1.0}`
+* e.g. `{name = "default_place_node"}`
+* e.g. `{name = "default_place_node", gain = 1.0}`
Registered definitions of stuff
-------------------------------
* `minetest.register_craftitem(name, item definition)`
* added to `minetest.registered_items[name]`
+* `minetest.unregister_item(name)`
+ * Unregisters the item name from engine, and deletes the entry with key
+ * `name` from `minetest.registered_items` and from the associated item
+ * table according to its nature: minetest.registered_nodes[] etc
+
* `minetest.register_biome(biome definition)`
* returns an integer uniquely identifying the registered biome
* added to `minetest.registered_biome` with the key of `biome.name`
^ The rotation of this node is stored in param2. Plants are rotated this way.
Values range 0 - 179. The value stored in param2 is multiplied by two to
get the actual rotation of the node.
+ paramtype2 == "meshoptions"
+ ^ Only valid for "plantlike". The value of param2 becomes a bitfield which can
+ be used to change how the client draws plantlike nodes. Bits 0, 1 and 2 form
+ a mesh selector. Currently the following meshes are choosable:
+ 0 = a "x" shaped plant (ordinary plant)
+ 1 = a "+" shaped plant (just rotated 45 degrees)
+ 2 = a "*" shaped plant with 3 faces instead of 2
+ 3 = a "#" shaped plant with 4 faces instead of 2
+ 4 = a "#" shaped plant with 4 faces that lean outwards
+ 5-7 are unused and reserved for future meshes.
+ Bits 3 through 7 are optional flags that can be combined and give these
+ effects:
+ bit 3 (0x08) - Makes the plant slightly vary placement horizontally
+ bit 4 (0x10) - Makes the plant mesh 1.4x larger
+ bit 5 (0x20) - Moves each face randomly a small bit down (1/8 max)
+ bits 6-7 are reserved for future use.
+ paramtype2 == "color"
+ ^ `param2` tells which color is picked from the palette.
+ The palette should have 256 pixels.
+ paramtype2 == "colorfacedir"
+ ^ Same as `facedir`, but with colors.
+ The first three bits of `param2` tells which color
+ is picked from the palette.
+ The palette should have 8 pixels.
+ paramtype2 == "colorwallmounted"
+ ^ Same as `wallmounted`, but with colors.
+ The first five bits of `param2` tells which color
+ is picked from the palette.
+ The palette should have 32 pixels.
+ paramtype2 == "glasslikeliquidlevel"
+ ^ Only valid for "glasslike_framed" or "glasslike_framed_optional" drawtypes.
+ param2 defines 64 levels of internal liquid.
+ Liquid texture is defined using `special_tiles = {"modname_tilename.png"},`
collision_box = {
type = "fixed",
fixed = {
On the Lua side, every punch calls:
- entity:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
+ entity:on_punch(puncher, time_from_last_punch, tool_capabilities, direction, damage)
This should never be called directly, because damage is usually not handled by
the entity itself.
* `tool_capabilities` can be `nil`.
* `direction` is a unit vector, pointing from the source of the punch to
the punched object.
+* `damage` damage that will be done to entity
+Return value of this function will determin if damage is done by this function
+(retval true) or shall be done by engine (retval false)
To punch an entity/object in Lua, call:
-------------
The instance of a node in the world normally only contains the three values
mentioned in "Nodes". However, it is possible to insert extra data into a
-node. It is called "node metadata"; See "`NodeMetaRef`".
+node. It is called "node metadata"; See `NodeMetaRef`.
-Metadata contains two things:
+Node metadata contains two things:
* A key-value store
* An inventory
}
})
+Item Metadata
+-------------
+Item stacks can store metadata too. See `ItemStackMetaRef`.
+
+Item metadata only contains a key-value store.
+
+Some of the values in the key-value store are handled specially:
+
+* `description`: Set the itemstack's description. Defaults to idef.description
+
+Example stuff:
+
+ local meta = stack:get_meta()
+ meta:set_string("key", "value")
+ print(dump(meta:to_table()))
+
Formspec
--------
Formspec defines a menu. Currently not much else than inventories are
* `fixed_size`: `true`/`false` (optional)
* deprecated: `invsize[<W>,<H>;]`
+#### `position[<X>,<Y>]`
+* Define the position of the formspec
+* A value between 0.0 and 1.0 represents a position inside the screen
+* The default value is the center of the screen (0.5, 0.5)
+
+#### `anchor[<X>,<Y>]`
+* Define the anchor of the formspec
+* A value between 0.0 and 1.0 represents an anchor inside the formspec
+* The default value is the center of the formspec (0.5, 0.5)
+
+#### `container[<X>,<Y>]`
+* Start of a container block, moves all physical elements in the container by (X, Y)
+* Must have matching container_end
+* Containers can be nested, in which case the offsets are added
+ (child containers are relative to parent containers)
+
+#### `container_end[]`
+* End of a container, following elements are no longer relative to this container
+
#### `list[<inventory location>;<list name>;<X>,<Y>;<W>,<H>;]`
* Show an inventory list
#### `pwdfield[<X>,<Y>;<W>,<H>;<name>;<label>]`
* Textual password style field; will be sent to server when a button is clicked
+* When enter is pressed in field, fields.key_enter_field will be sent with the name
+ of this field.
* `x` and `y` position the field relative to the top left of the menu
* `w` and `h` are the size of the field
* Fields are a set height, but will be vertically centred on `h`
* Position and size units are inventory slots
* `name` is the name of the field as returned in fields to `on_receive_fields`
* `label`, if not blank, will be text printed on the top left above the field
+* See field_close_on_enter to stop enter closing the formspec
#### `field[<X>,<Y>;<W>,<H>;<name>;<label>;<default>]`
* Textual field; will be sent to server when a button is clicked
+* When enter is pressed in field, fields.key_enter_field will be sent with the name
+ of this field.
* `x` and `y` position the field relative to the top left of the menu
* `w` and `h` are the size of the field
* Fields are a set height, but will be vertically centred on `h`
* `default` may contain variable references such as `${text}'` which
will fill the value from the metadata value `text`
* **Note**: no extra text or more than a single variable is supported ATM.
+* See field_close_on_enter to stop enter closing the formspec
#### `field[<name>;<label>;<default>]`
* As above, but without position/size units
+* When enter is pressed in field, fields.key_enter_field will be sent with the name
+ of this field.
* Special field for creating simple forms, such as sign text input
* Must be used without a `size[]` element
* A "Proceed" button will be added automatically
+* See field_close_on_enter to stop enter closing the formspec
+
+#### `field_close_on_enter[<name>;<close_on_enter>]`
+* <name> is the name of the field
+* if <close_on_enter> is false, pressing enter in the field will submit the form but not close it
+* defaults to true when not specified (ie: no tag for a field)
#### `textarea[<X>,<Y>;<W>,<H>;<name>;<label>;<default>]`
* Same as fields above, but with multi-line input
* `"nodemeta:<X>,<Y>,<Z>"`: Any node metadata
* `"detached:<name>"`: A detached inventory
+Player Inventory lists
+----------------------
+* `main`: list containing the default inventory
+* `craft`: list containing the craft input
+* `craftpreview`: list containing the craft output
+* `hand`: list containing an override for the empty hand
+
`ColorString`
-------------
`#RGB` defines a color in hexadecimal format.
* `color` is a ColorString
* The escape sequence sets the background of the whole text element to
`color`. Only defined for item descriptions and tooltips.
+* `color.strip_foreground_colors(str)`
+ * Removes foreground colors added by `get_color_escape_sequence`.
+* `color.strip_background_colors(str)`
+ * Removes background colors added by `get_background_escape_sequence`.
+* `color.strip_colors(str)`
+ * Removes all color escape sequences.
Spatial Vectors
---------------
* `vector.distance(p1, p2)`: returns a number
* `vector.length(v)`: returns a number
* `vector.normalize(v)`: returns a vector
-* `vector.round(v)`: returns a vector, each dimension rounded to floor
+* `vector.floor(v)`: returns a vector, each dimension rounded down
+* `vector.round(v)`: returns a vector, each dimension rounded to nearest int
* `vector.apply(v, func)`: returns a vector
* `vector.equals(v1, v2)`: returns a boolean
+* `vector.sort(v1, v2)`: returns minp, maxp vectors of the cuboid defined by v1 and v2
For the following functions `x` can be either a vector or a number:
* `minetest.formspec_escape(string)`: returns a string
* escapes the characters "[", "]", "\", "," and ";", which can not be used in formspecs
* `minetest.is_yes(arg)`
- * returns whether `arg` can be interpreted as yes
+ * returns true if passed 'y', 'yes', 'true' or a number that isn't zero.
* `minetest.get_us_time()`
* returns time with microsecond precision. May not return wall time.
* `table.copy(table)`: returns a table
* `minetest.get_worldpath()`: returns e.g. `"/home/user/.minetest/world"`
* Useful for storing custom data
* `minetest.is_singleplayer()`
-* `minetest.features`
- * Table containing API feature flags: `{foo=true, bar=true}`
+* `minetest.features`: Table containing API feature flags
+ {
+ glasslike_framed = true,
+ nodebox_as_selectionbox = true,
+ chat_send_player_param3 = true,
+ get_all_craft_recipes_works = true,
+ use_texture_alpha = true,
+ -- ^ The transparency channel of textures can be used optionally
+ no_legacy_abms = true,
+ -- ^ Tree and grass ABMs are no longer done from C++
+ texture_names_parens = true,
+ -- ^ Texture grouping is possible using parentheses
+ area_store_custom_ids = true,
+ -- ^ Unique Area ID for AreaStore:insert_area
+ add_entity_with_staticdata = true,
+ -- ^ add_entity supports passing initial staticdata to on_activate
+ no_chat_message_prediction = true,
+ -- ^ Chat messages are no longer predicted
+ }
* `minetest.has_feature(arg)`: returns `boolean, missing_features`
* `arg`: string or table in format `{foo=true, bar=true}`
* `missing_features`: `{foo=true, bar=true}`
-* `minetest.get_player_information(player_name)`: returns a table containing
- information about player. Example return value:
+* `minetest.get_player_information(player_name)`:
+ * Returns a table containing information about a player
+ Example return value:
{
address = "127.0.0.1", -- IP address of client
ip_version = 4, -- IPv4 / IPv6
* nil: return all entries,
* true: return only subdirectory names, or
* false: return only file names.
+* `minetest.get_version()`: returns a table containing components of the
+ engine version. Components:
+ * `project`: Name of the project, eg, "Minetest"
+ * `string`: Simple version, eg, "1.2.3-dev"
+ * `hash`: Full git version (only set if available), eg, "1.2.3-dev-01234567-dirty"
+ Use this for informational purposes only. The information in the returned
+ table does not represent the capabilities of the engine, nor is it
+ reliable or verifyable. Compatible forks will have a different name and
+ version entirely. To check for the presence of engine features, test
+ whether the functions exported by the wanted features exist. For example:
+ `if core.nodeupdate then ... end`.
### Logging
* `minetest.debug(...)`
* `minetest.register_node(name, node definition)`
* `minetest.register_tool(name, item definition)`
* `minetest.register_craftitem(name, item definition)`
+* `minetest.unregister_item(name)`
* `minetest.register_alias(name, convert_to)`
+* `minetest.register_alias_force(name, convert_to)`
* `minetest.register_craft(recipe)`
* Check recipe table syntax for different types below.
* `minetest.clear_craft(recipe)`
* Warning! The type field ("shaped","cooking" or any other) will be ignored if the recipe
contains output. Erasing is then done independently from the crafting method.
* `minetest.register_ore(ore definition)`
+* `minetest.register_biome(biome definition)`
* `minetest.register_decoration(decoration definition)`
* `minetest.override_item(name, redefinition)`
* Overrides fields of an item registered with register_node/tool/craftitem.
* Note: Item must already be defined, (opt)depend on the mod defining it.
* Example: `minetest.override_item("default:mese", {light_source=LIGHT_MAX})`
-
* `minetest.clear_registered_ores()`
+* `minetest.clear_registered_biomes()`
* `minetest.clear_registered_decorations()`
### Global callback registration functions
* `minetest.register_on_cheat(func(ObjectRef, cheat))`
* Called when a player cheats
* `cheat`: `{type=<cheat_type>}`, where `<cheat_type>` is one of:
- * `"moved_too_fast"`
- * `"interacted_too_far"`
- * `"finished_unknown_dig"`
+ * `moved_too_fast`
+ * `interacted_too_far`
+ * `interacted_while_dead`
+ * `finished_unknown_dig`
* `dug_unbreakable`
* `dug_too_fast`
* `minetest.register_on_chat_message(func(name, message))`
### Other registration functions
* `minetest.register_chatcommand(cmd, chatcommand definition)`
+ * Adds definition to minetest.registered_chatcommands
+* `minetest.override_chatcommand(name, redefinition)`
+ * Overrides fields of a chatcommand registered with register_chatcommand.
+* `minetest.unregister_chatcommand(name)`
+ * Unregisters a chatcommands registered with register_chatcommand.
* `minetest.register_privilege(name, definition)`
* `definition`: `"description text"`
* `definition`: `{ description = "description text", give_to_singleplayer = boolean}`
- the default of `give_to_singleplayer` is true
+ the default of `give_to_singleplayer` is true
* To allow players with basic_privs to grant, see basic_privs minetest.conf setting.
* `minetest.register_authentication_handler(handler)`
* See `minetest.builtin_auth_handler` in `builtin.lua` for reference
* `minetest.set_node(pos, node)`
* `minetest.add_node(pos, node): alias set_node(pos, node)`
* Set node at position (`node = {name="foo", param1=0, param2=0}`)
-* `minetest.swap_node(pos, node`
+* `minetest.swap_node(pos, node)`
* Set node at position, but don't remove metadata
* `minetest.remove_node(pos)`
* Equivalent to `set_node(pos, "air")`
* Returns `true` if successful, `false` on failure (e.g. protected location)
* `minetest.punch_node(pos)`
* Punch node with the same effects that a player would cause
+* `minetest.spawn_falling_node(pos)`
+ * Change node into falling node
+ * Returns `true` if successful, `false` on failure
* `minetest.find_nodes_with_meta(pos1, pos2)`
* Get a table of positions of nodes that have metadata within a region {pos1, pos2}
* `minetest.get_node_timer(pos)`
* Get `NodeTimerRef`
-* `minetest.add_entity(pos, name)`: Spawn Lua-defined entity at position
+* `minetest.add_entity(pos, name, [staticdata])`: Spawn Lua-defined entity at position
* Returns `ObjectRef`, or `nil` if failed
* `minetest.add_item(pos, item)`: Spawn item
* Returns `ObjectRef`, or `nil` if failed
* `minetest.get_mapgen_setting_noiseparams(name)`
* Same as above, but returns the value as a NoiseParams table if the setting `name` exists
and is a valid NoiseParams
-* `minetest.set_mapgen_setting(name, value, [override_meta=false])`
+* `minetest.set_mapgen_setting(name, value, [override_meta])`
* Sets a mapgen param to `value`, and will take effect if the corresponding mapgen setting
- is not already present in map_meta.txt. If the optional boolean override_meta is set to true,
- this setting will become the active setting regardless of the map metafile contents.
+ is not already present in map_meta.txt.
+ * `override_meta` is an optional boolean (default: `false`). If this is set to true,
+ the setting will become the active setting regardless of the map metafile contents.
* Note: to set the seed, use "seed", not "fixed_map_seed"
-* `minetest.set_mapgen_setting_noiseparams(name, value, [override_meta=false])`
- * Same as above, except value is a NoiseParams table
+* `minetest.set_mapgen_setting_noiseparams(name, value, [override_meta])`
+ * Same as above, except value is a NoiseParams table.
* `minetest.set_noiseparams(name, noiseparams, set_default)`
* Sets the noiseparams setting of `name` to the noiseparams table specified in `noiseparams`.
* `set_default` is an optional boolean (default: `true`) that specifies whether the setting
* increase level of leveled node by level, default `level` equals `1`
* if `totallevel > maxlevel`, returns rest (`total-max`)
* can be negative for decreasing
+* `core.check_single_for_falling(pos)`
+ * causes an unsupported `group:falling_node` node to fall and causes an
+ unattached `group:attached_node` node to fall.
+ * does not spread these updates to neighbours.
+* `core.check_for_falling(pos)`
+ * causes an unsupported `group:falling_node` node to fall and causes an
+ unattached `group:attached_node` node to fall.
+ * spread these updates to neighbours and can cause a cascade
+ of nodes to fall.
### Inventory
`minetest.get_inventory(location)`: returns an `InvRef`
* `{type="player", name="celeron55"}`
* `{type="node", pos={x=, y=, z=}}`
* `{type="detached", name="creative"}`
-* `minetest.create_detached_inventory(name, callbacks)`: returns an `InvRef`
+* `minetest.create_detached_inventory(name, callbacks, [player_name])`: returns an `InvRef`
* callbacks: See "Detached inventory callbacks"
+ * player_name: Make detached inventory available to one player exclusively,
+ by default they will be sent to every player (even if not used).
+ Note that this parameter is mostly just a workaround and will be removed in future releases.
* Creates a detached inventory. If it already exists, it is cleared.
* `minetest.do_item_eat(hp_change, replace_with_item, itemstack, user, pointed_thing)`:
returns left over ItemStack
* `formname`: name passed to `on_player_receive_fields` callbacks.
It should follow the `"modname:<whatever>"` naming convention
* `formspec`: formspec to display
+* `minetest.close_formspec(playername, formname)`
+ * `playername`: name of player to close formspec
+ * `formname`: has to exactly match the one given in show_formspec, or the formspec will
+ not close.
+ * calling show_formspec(playername, formname, "") is equal to this expression
+ * to close a formspec regardless of the formname, call
+ minetest.close_formspec(playername, ""). USE THIS ONLY WHEN ABSOLUTELY NECESSARY!
* `minetest.formspec_escape(string)`: returns a string
* escapes the characters "[", "]", "\", "," and ";", which can not be used in formspecs
* `minetest.explode_table_event(string)`: returns a table
* Convert a vector to a wallmounted value, used for `paramtype2="wallmounted"`
* `minetest.wallmounted_to_dir(wallmounted)`
* Convert a wallmounted value back into a vector aimed directly out the "back" of a node
+* `minetest.dir_to_yaw(dir)`
+ * Convert a vector into a yaw (angle)
+* `minetest.yaw_to_dir(yaw)`
+ * Convert yaw (angle) to a vector
* `minetest.get_node_drops(nodename, toolname)`
* Returns list of item names.
* **Note**: This will be removed or modified in a future version.
* `minetest.request_shutdown([message],[reconnect])`: request for server shutdown. Will display `message` to clients,
and `reconnect` == true displays a reconnect button.
* `minetest.get_server_status()`: returns server status string
+* `minetest.get_server_uptime()`: returns the server uptime in seconds
### Bans
* `minetest.get_ban_list()`: returns the ban list (same as `minetest.get_ban_description("")`)
* `HTTPApiTable.fetch_async_get(handle)`: returns HTTPRequestResult
* Return response data for given asynchronous HTTP request
+### Storage API:
+* `minetest.get_mod_storage()`:
+ * returns reference to mod private `StorageRef`
+ * must be called during mod load time
+
### Misc.
* `minetest.get_connected_players()`: returns list of `ObjectRefs`
+* `minetest.player_exists(name)`: boolean, whether player exists (regardless of online status)
+* `minetest.hud_replace_builtin(name, hud_definition)`
+ * Replaces definition of a builtin hud element
+ * `name`: `"breath"` or `"health"`
+ * `hud_definition`: definition to replace builtin definition
* `minetest.hash_node_position({x=,y=,z=})`: returns an 48-bit integer
* Gives a unique hash number for a node position (16+16+16=48bit)
* `minetest.get_position_from_hash(hash)`: returns a position
the creative mode setting, and checks for "sneak" to set the `invert_wall`
parameter.
-* `minetest.forceload_block(pos)`
+* `minetest.forceload_block(pos[, transient])`
* forceloads the position `pos`.
* returns `true` if area could be forceloaded
- * Please note that forceloaded areas are saved when the server restarts.
+ * If `transient` is `false` or absent, the forceload will be persistent
+ (saved between server runs). If `true`, the forceload will be transient
+ (not saved between server runs).
-* `minetest.forceload_free_block(pos)`
+* `minetest.forceload_free_block(pos[, transient])`
* stops forceloading the position `pos`
+ * If `transient` is `false` or absent, frees a persistent forceload.
+ If `true`, frees a transient forceload.
* `minetest.request_insecure_environment()`: returns an environment containing
insecure functions if the calling mod has been listed as trusted in the
* Map of object references, indexed by active object id
* `minetest.luaentities`
* Map of Lua entities, indexed by active object id
+* `minetest.registered_chatcommands`
+ * Map of registered chat command definitions, indexed by name
* `minetest.registered_ores`
* List of registered ore definitions.
* `minetest.registered_biomes`
Class reference
---------------
-### `NodeMetaRef`
-Node metadata: reference extra data and functionality stored in a node.
-Can be gotten via `minetest.get_meta(pos)`.
+### `MetaDataRef`
+See `StorageRef`, `NodeMetaRef` and `ItemStackMetaRef`.
#### Methods
* `set_string(name, value)`
* `get_int(name)`
* `set_float(name, value)`
* `get_float(name)`
-* `get_inventory()`: returns `InvRef`
-* `to_table()`: returns `nil` or `{fields = {...}, inventory = {list1 = {}, ...}}`
+* `to_table()`: returns `nil` or a table with keys:
+ * `fields`: key-value storage
+ * `inventory`: `{list1 = {}, ...}}` (NodeMetaRef only)
* `from_table(nil or {})`
- * See "Node Metadata"
+ * Any non-table value will clear the metadata
+ * See "Node Metadata" for an example
+ * returns `true` on success
+
+### `NodeMetaRef`
+Node metadata: reference extra data and functionality stored in a node.
+Can be obtained via `minetest.get_meta(pos)`.
+
+#### Methods
+* All methods in MetaDataRef
+* `get_inventory()`: returns `InvRef`
+
+### `ItemStackMetaRef`
+ItemStack metadata: reference extra data and functionality stored in a stack.
+Can be obtained via `item:get_meta()`.
+
+#### Methods
+* All methods in MetaDataRef
+
+### `StorageRef`
+Mod metadata: per mod metadata, saved automatically.
+Can be obtained via `minetest.get_mod_storage()` during load time.
+
+#### Methods
+* All methods in MetaDataRef
### `NodeTimerRef`
Node Timers: a high resolution persistent per-node timer.
#### Methods
* `remove()`: remove object (after returning from Lua)
* Note: Doesn't work on players, use minetest.kick_player instead
-* `getpos()`: returns `{x=num, y=num, z=num}`
-* `setpos(pos)`; `pos`=`{x=num, y=num, z=num}`
-* `moveto(pos, continuous=false)`: interpolated move
+* `get_pos()`: returns `{x=num, y=num, z=num}`
+* `set_pos(pos)`; `pos`=`{x=num, y=num, z=num}`
+* `move_to(pos, continuous=false)`: interpolated move
* `punch(puncher, time_from_last_punch, tool_capabilities, direction)`
* `puncher` = another `ObjectRef`,
* `time_from_last_punch` = time since last punch action of the puncher
}
##### LuaEntitySAO-only (no-op for other objects)
-* `setvelocity({x=num, y=num, z=num})`
-* `getvelocity()`: returns `{x=num, y=num, z=num}`
-* `setacceleration({x=num, y=num, z=num})`
-* `getacceleration()`: returns `{x=num, y=num, z=num}`
-* `setyaw(radians)`
-* `getyaw()`: returns number in radians
-* `settexturemod(mod)`
-* `setsprite(p={x=0,y=0}, num_frames=1, framelength=0.2,
+* `set_velocity({x=num, y=num, z=num})`
+* `get_velocity()`: returns `{x=num, y=num, z=num}`
+* `set_acceleration({x=num, y=num, z=num})`
+* `get_acceleration()`: returns `{x=num, y=num, z=num}`
+* `set_yaw(radians)`
+* `get_yaw()`: returns number in radians
+* `set_texture_mod(mod)`
+* `get_texture_mod()` returns current texture modifier
+* `set_sprite(p={x=0,y=0}, num_frames=1, framelength=0.2,
select_horiz_by_yawpitch=false)`
* Select sprite from spritesheet with optional animation and DM-style
texture selection based on yaw relative to camera
* `0`: player is drowning,
* `1`-`10`: remaining number of bubbles
* `11`: bubbles bar is not shown
+* `set_attribute(attribute, value)`: sets an extra attribute with value on player
+* `get_attribute(attribute)`: returns value for extra attribute. Returns nil if no attribute found.
* `set_inventory_formspec(formspec)`
* Redefine player's inventory form
* Should usually be called in on_joinplayer
* `hud_set_hotbar_selected_image(texturename)`
* sets image for selected item of hotbar
* `hud_get_hotbar_selected_image`: returns texturename
-* `hud_replace_builtin(name, hud_definition)`
- * replace definition of a builtin hud element
- * `name`: `"breath"` or `"health"`
- * `hud_definition`: definition to replace builtin definition
* `set_sky(bgcolor, type, {texture names})`
* `bgcolor`: ColorSpec, defaults to white
* Available types:
#### Methods
* `get_area(id, include_borders, include_data)`: returns the area with the id `id`.
(optional) Boolean values `include_borders` and `include_data` control what's copied.
+ Returns nil if specified area id does not exist.
* `get_areas_for_pos(pos, include_borders, include_data)`: returns all areas that contain
the position `pos`. (optional) Boolean values `include_borders` and `include_data` control
what's copied.
#### Methods
* `is_empty()`: Returns `true` if stack is empty.
* `get_name()`: Returns item name (e.g. `"default:stone"`).
-* `set_name(item_name)`: Returns boolean success.
- Clears item on failure.
+* `set_name(item_name)`: Returns boolean whether item was cleared
* `get_count()`: Returns number of items on the stack.
-* `set_count(count)`
+* `set_count(count)`: Returns boolean whether item was cleared
* `get_wear()`: Returns tool wear (`0`-`65535`), `0` for non-tools.
-* `set_wear(wear)`: Returns boolean success.
- Clears item on failure.
-* `get_metadata()`: Returns metadata (a string attached to an item stack).
-* `set_metadata(metadata)`: Returns true.
+* `set_wear(wear)`: Returns boolean whether item was cleared
+* `get_meta()`: Returns ItemStackMetaRef. See section for more details
+* `get_metadata()`: (DEPRECATED) Returns metadata (a string attached to an item stack).
+* `set_metadata(metadata)`: (DEPRECATED) Returns true.
* `clear()`: removes all items from the stack, making it empty.
* `replace(item)`: replace the contents of this stack.
* `item` can also be an itemstring or table.
Once the internal VoxelManip state has been modified to your liking, the changes can be committed back
to the map by calling `VoxelManip:write_to_map()`.
-Finally, a call to `VoxelManip:update_map()` is required to re-calculate lighting and set the blocks
-as being modified so that connected clients are sent the updated parts of map.
-
##### Flat array format
Let
will also update the Mapgen VoxelManip object's internal state active on the current thread.
* After modifying the Mapgen VoxelManip object's internal buffer, it may be necessary to update lighting
information using either: `VoxelManip:calc_lighting()` or `VoxelManip:set_lighting()`.
-* `VoxelManip:update_map()` does not need to be called after `write_to_map()`. The map update is performed
- automatically after all on_generated callbacks have been run for that generated block.
##### Other API functions operating on a VoxelManip
If any VoxelManip contents were set to a liquid node, `VoxelManip:update_liquids()` must be called
* returns raw node data in the form of an array of node content IDs
* if the param `buffer` is present, this table will be used to store the result instead
* `set_data(data)`: Sets the data contents of the `VoxelManip` object
-* `update_map()`: Update map after writing chunk back to map.
- * To be used only by `VoxelManip` objects created by the mod itself;
- not a `VoxelManip` that was retrieved from `minetest.get_mapgen_object`
+* `update_map()`: Does nothing, kept for compatibility.
* `set_lighting(light, [p1, p2])`: Set the lighting within the `VoxelManip` to a uniform value
* `light` is a table, `{day=<0...15>, night=<0...15>}`
* To be used only by a `VoxelManip` object from `minetest.get_mapgen_object`
* `set_light_data(light_data)`: Sets the `param1` (light) contents of each node
in the `VoxelManip`
* expects lighting data in the same format that `get_light_data()` returns
-* `get_param2_data()`: Gets the raw `param2` data read into the `VoxelManip` object
+* `get_param2_data([buffer])`: Gets the raw `param2` data read into the `VoxelManip` object
+ * Returns an array (indices 1 to volume) of integers ranging from `0` to `255`
+ * If the param `buffer` is present, this table will be used to store the result instead
* `set_param2_data(param2_data)`: Sets the `param2` contents of each node in the `VoxelManip`
* `calc_lighting([p1, p2], [propagate_shadow])`: Calculate lighting within the `VoxelManip`
* To be used only by a `VoxelManip` object from `minetest.get_mapgen_object`
* It has the member `.object`, which is an `ObjectRef` pointing to the object
* The original prototype stuff is visible directly via a metatable
* Callbacks:
- * `on_activate(self, staticdata)`
+ * `on_activate(self, staticdata, dtime_s)`
* Called when the object is instantiated.
+ * `dtime_s` is the time passed since the object was unloaded, which can
+ be used for updating the entity state.
* `on_step(self, dtime)`
* Called on every server tick, after movement and collision processing.
`dtime` is usually 0.1 seconds, as per the `dedicated_server_step` setting
`in minetest.conf`.
- * `on_punch(self, puncher, time_from_last_punch, tool_capabilities, dir`
+ * `on_punch(self, puncher, time_from_last_punch, tool_capabilities, dir)`
* Called when somebody punches the object.
* Note that you probably want to handle most punches using the
automatic armor group system.
on_activate = function(self, staticdata, dtime_s),
on_step = function(self, dtime),
- on_punch = function(self, hitter),
+ on_punch = function(self, puncher, time_from_last_punch, tool_capabilities, dir),
on_rightclick = function(self, clicker),
get_staticdata = function(self),
-- ^ Called sometimes; the string returned is passed to on_activate when
-- the entity is re-activated from static state
- -- Also you can define arbitrary member variables here
- myvariable = whatever,
+ -- Also you can define arbitrary member variables here (see item definition for
+ -- more info)
+ _custom_field = whatever,
}
### ABM (ActiveBlockModifier) definition (`register_abm`)
{
description = "Steel Axe",
- groups = {}, -- key=name, value=rating; rating=1..3.
+ groups = {}, -- key = name, value = rating; rating = 1..3.
if rating not applicable, use 1.
- e.g. {wool=1, fluffy=3}
- {soil=2, outerspace=1, crumbly=1}
- {bendy=2, snappy=1},
- {hard=1, metal=1, spikes=1}
+ e.g. {wool = 1, fluffy = 3}
+ {soil = 2, outerspace = 1, crumbly = 1}
+ {bendy = 2, snappy = 1},
+ {hard = 1, metal = 1, spikes = 1}
inventory_image = "default_tool_steelaxe.png",
wield_image = "",
- wield_scale = {x=1,y=1,z=1},
+ wield_scale = {x = 1, y = 1, z = 1},
stack_max = 99,
range = 4.0,
liquids_pointable = false,
tool_capabilities = {
full_punch_interval = 1.0,
- max_drop_level=0,
- groupcaps={
+ max_drop_level = 0,
+ groupcaps = {
-- For example:
- snappy={times={[2]=0.80, [3]=0.40}, maxwear=0.05, maxlevel=1},
- choppy={times={[3]=0.90}, maxwear=0.05, maxlevel=0}
+ choppy = {times = {[1] = 2.50, [2] = 1.40, [3] = 1.00}, uses = 20, maxlevel = 2},
},
- damage_groups = {groupname=damage},
+ damage_groups = {groupname = damage},
},
node_placement_prediction = nil,
--[[
actual result to client in a short moment.
]]
sound = {
+ breaks = "default_tool_break", -- tools only
place = --[[<SimpleSoundSpec>]],
},
on_place = func(itemstack, placer, pointed_thing),
--[[
^ Shall place item and return the leftover itemstack
+ ^ The placer may be any ObjectRef or nil.
^ default: minetest.item_place ]]
on_secondary_use = func(itemstack, user, pointed_thing),
--[[
^ Same as on_place but called when pointing at nothing.
+ ^ The user may be any ObjectRef or nil.
^ pointed_thing : always { type = "nothing" }
]]
on_drop = func(itemstack, dropper, pos),
--[[
^ Shall drop item and return the leftover itemstack
+ ^ The dropper may be any ObjectRef or nil.
^ default: minetest.item_drop ]]
on_use = func(itemstack, user, pointed_thing),
--[[
inventory, or an itemstack to replace the original itemstack.
e.g. itemstack:take_item(); return itemstack
^ Otherwise, the function is free to do what it wants.
+ ^ The user may be any ObjectRef or nil.
^ The default functions handle regular use cases.
]]
after_use = func(itemstack, user, node, digparams),
itemstack:add_wear(digparams.wear)
return itemstack
end
+ ^ The user may be any ObjectRef or nil.
+ ]]
+ _custom_field = whatever,
+ --[[
+ ^ Add your own custom fields. By convention, all custom field names
+ should start with `_` to avoid naming collisions with future engine
+ usage.
]]
}
when displacement mapping is used
Directions are from the point of view of the tile texture,
not the node it's on
+* `{name="image.png", color=ColorSpec}`
+ * the texture's color will be multiplied with this color.
+ * the tile's color overrides the owning node's color in all cases.
* deprecated, yet still supported field names:
* `image` (name)
### Tile animation definition
-* `{type="vertical_frames", aspect_w=16, aspect_h=16, length=3.0}`
+
+ {
+ type = "vertical_frames",
+ aspect_w = 16,
+ -- ^ specify width of a frame in pixels
+ aspect_h = 16,
+ -- ^ specify height of a frame in pixels
+ length = 3.0,
+ -- ^ specify full loop length
+ }
+
+ {
+ type = "sheet_2d",
+ frames_w = 5,
+ -- ^ specify width in number of frames
+ frames_h = 3,
+ -- ^ specify height in number of frames
+ frame_length = 0.5,
+ -- ^ specify length of a single frame
+ }
### Node definition (`register_node`)
drawtype = "normal", -- See "Node drawtypes"
visual_scale = 1.0, --[[
- ^ Supported for drawtypes "plantlike", "signlike", "torchlike", "mesh".
- ^ For plantlike, the image will start at the bottom of the node; for the
- ^ other drawtypes, the image will be centered on the node.
+ ^ Supported for drawtypes "plantlike", "signlike", "torchlike",
+ ^ "firelike", "mesh".
+ ^ For plantlike and firelike, the image will start at the bottom of the
+ ^ node, for the other drawtypes the image will be centered on the node.
^ Note that positioning for "torchlike" may still change. ]]
tiles = {tile definition 1, def2, def3, def4, def5, def6}, --[[
^ Textures of node; +Y, -Y, +X, -X, +Z, -Z (old field name: tile_images)
special_tiles = {tile definition 1, Tile definition 2}, --[[
^ Special textures of node; used rarely (old field name: special_materials)
^ List can be shortened to needed length ]]
- alpha = 255,
+ color = ColorSpec, --[[
+ ^ The node's original color will be multiplied with this color.
+ ^ If the node has a palette, then this setting only has an effect
+ ^ in the inventory and on the wield item. ]]
use_texture_alpha = false, -- Use texture's alpha channel
+ palette = "palette.png", --[[
+ ^ The node's `param2` is used to select a pixel from the image
+ ^ (pixels are arranged from left to right and from top to bottom).
+ ^ The node's color will be multiplied with the selected pixel's
+ ^ color. Tiles can override this behavior.
+ ^ Only when `paramtype2` supports palettes. ]]
post_effect_color = "green#0F", -- If player is inside node, see "ColorSpec"
paramtype = "none", -- See "Nodes" --[[
^ paramtype = "light" allows light to propagate from or through the node with light value
^ Don't forget to use "leveled" type nodebox. ]]
liquid_range = 8, -- number of flowing nodes around source (max. 8)
drowning = 0, -- Player will take this amount of damage if no bubbles are left
- light_source = 0, -- Amount of light emitted by node
+ light_source = 0, --[[
+ ^ Amount of light emitted by node.
+ ^ To set the maximum (currently 14), use the value 'minetest.LIGHT_MAX'.
+ ^ A value outside the range 0 to minetest.LIGHT_MAX causes undefined behavior.]]
damage_per_second = 0, -- If player is inside node, this damage is caused
node_box = {type="regular"}, -- See "Node boxes"
connects_to = nodenames, --[[
{
deco_type = "simple", -- See "Decoration types"
place_on = "default:dirt_with_grass",
- -- ^ Node that decoration can be placed on
+ -- ^ Node (or list of nodes) that the decoration can be placed on
sidelen = 8,
-- ^ Size of divisions made in the chunk being generated.
-- ^ If the chunk size is not evenly divisible by sidelen, sidelen is made equal to the chunk size.
-- ^ Minimum and maximum `y` positions these decorations can be generated at.
-- ^ This parameter refers to the `y` position of the decoration base, so
-- the actual maximum height would be `height_max + size.Y`.
+ spawn_by = "default:water",
+ -- ^ Node (or list of nodes) that the decoration only spawns next to.
+ -- ^ Checks two horizontal planes of neighbouring nodes (including diagonal neighbours),
+ -- ^ one plane at Y = surface and one plane at Y = surface = + 1.
+ num_spawn_by = 1,
+ -- ^ Number of spawn_by nodes that must be surrounding the decoration position to occur.
+ -- ^ If absent or -1, decorations occur next to any nodes.
flags = "liquid_surface, force_placement",
-- ^ Flags for all decoration types.
-- ^ "liquid_surface": Instead of placement on the highest solid surface
-- ^ Number of nodes high the decoration is made.
-- ^ If height_max is not 0, this is the lower bound of the randomly selected height.
height_max = 0,
- -- ^ Number of nodes the decoration can be at maximum.
+ -- ^ Number of nodes the decoration can be at maximum.
-- ^ If absent, the parameter 'height' is used as a constant.
- spawn_by = "default:water",
- -- ^ Node that the decoration only spawns next to.
- -- ^ The neighbours checked are the 8 nodes horizontally surrounding the lowest node of the
- -- ^ decoration, and the 8 nodes horizontally surrounding the ground node below the decoration.
- num_spawn_by = 1,
- -- ^ Number of spawn_by nodes that must be surrounding the decoration position to occur.
- -- ^ If absent or -1, decorations occur next to any nodes.
+ param2 = 0,
+ -- ^ Param2 value of placed decoration node.
----- Schematic-type parameters
schematic = "foobar.mts",
-- ^ vertical: if true faces player using y axis only
texture = "image.png",
-- ^ Uses texture (string)
- playername = "singleplayer"
+ playername = "singleplayer",
-- ^ optional, if specified spawns particle only on the player's client
+ animation = {Tile Animation definition},
+ -- ^ optional, specifies how to animate the particle texture
+ glow = 0
+ -- ^ optional, specify particle self-luminescence in darkness
}
+
### `ParticleSpawner` definition (`add_particlespawner`)
{
collision_removal = false,
-- ^ collision_removal: if true then particle is removed when it collides,
-- ^ requires collisiondetection = true to have any effect
+ attached = ObjectRef,
+ -- ^ attached: if defined, particle positions, velocities and accelerations
+ -- ^ are relative to this object's position and yaw.
vertical = false,
-- ^ vertical: if true faces player using y axis only
texture = "image.png",
projects / oweals / minetest.git / blobdiff