-Minetest Lua Modding API Reference 0.5.0
-=========================================
+Minetest Lua Modding API Reference
+==================================
* More information at <http://www.minetest.net/>
* Developer Wiki: <http://dev.minetest.net/>
Introduction
------------
-Content and functionality can be added to Minetest 0.4 by using Lua
-scripting in run-time loaded mods.
+Content and functionality can be added to Minetest using Lua scripting
+in run-time loaded mods.
A mod is a self-contained bunch of scripts, textures and other related
-things that is loaded by and interfaces with Minetest.
+things, which is loaded by and interfaces with Minetest.
Mods are contained and ran solely on the server side. Definitions and media
files are automatically transferred to the client.
If you see a deficiency in the API, feel free to attempt to add the
-functionality in the engine and API.
+functionality in the engine and API, and to document it here.
Programming in Lua
------------------
Games
-----
Games are looked up from:
-
-* `$path_share/games/gameid/`
-* `$path_user/games/gameid/`
-
-where `gameid` is unique to each game.
-
-The game directory contains the file `game.conf`, which contains these fields:
-
- name = <Human-readable full name of the game>
-
-e.g.
-
- name = Minetest
-
-The game directory can contain the file minetest.conf, which will be used
-to set default settings when running the particular game.
-It can also contain a settingtypes.txt in the same format as the one in builtin.
-This settingtypes.txt will be parsed by the menu and the settings will be displayed
-in the "Games" category in the settings tab.
+ * `$path_share/games/gameid/`
+ * `$path_user/games/gameid/`
+Where `gameid` is unique to each game.
+
+The game directory can contain the following files:
+ * `game.conf`
+ Which contains:
+ * name = <Human-readable full name of the game>
+ e.g.
+ name = Minetest
+ * Optionally, game.conf can also contain:
+ disallowed_mapgens = <comma-separated mapgens>
+ e.g.
+ disallowed_mapgens = v5,v6,flat
+ These mapgens are removed from the list of mapgens for the game.
+ * minetest.conf
+ Used to set default settings when running this game.
+ * settingtypes.txt
+ In the same format as the one in builtin.
+ This settingtypes.txt will be parsed by the menu and the settings will be
+ displayed in the "Games" category in the advanced settings tab.
+ * If the subgame contains a folder called `textures` the server will load it
+ as a texturepack, overriding mod textures.
+ Any server texturepack will override mod textures and the game texturepack.
### Menu images
-Games can provide custom main menu images. They are put inside a `menu` directory
-inside the game directory.
-
-The images are named `$identifier.png`, where `$identifier` is
-one of `overlay,background,footer,header`.
-If you want to specify multiple images for one identifier, add additional images named
-like `$identifier.$n.png`, with an ascending number $n starting with 1, and a random
-image will be chosen from the provided ones.
+Games can provide custom main menu images. They are put inside a `menu`
+directory inside the game directory.
+The images are named `$identifier.png`, where `$identifier` is one of
+`overlay`, `background`, `footer`, `header`.
+If you want to specify multiple images for one identifier, add additional
+images named like `$identifier.$n.png`, with an ascending number $n starting
+with 1, and a random image will be chosen from the provided ones.
Mod load path
-------------
A single line contains a single modname.
Optional dependencies can be defined by appending a question mark
-to a single modname. Their meaning is that if the specified mod
-is missing, that does not prevent this mod from being loaded.
+to a single modname. This means that if the specified mod
+is missing, it does not prevent this mod from being loaded.
### `screenshot.png`
A screenshot shown in the mod manager within the main menu. It should
have an aspect ratio of 3:2 and a minimum size of 300×200 pixels.
### `description.txt`
-A File containing description to be shown within mainmenu.
+A file containing a description to be shown in the Mods tab of the mainmenu.
### `settingtypes.txt`
A file in the same format as the one in builtin. It will be parsed by the
The `:` prefix can also be used for maintaining backwards compatibility.
-### Aliases
+Aliases
+-------
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`.
+This converts anything called `name` to `convert_to`.
The only difference between `minetest.register_alias` and
`minetest.register_alias_force` is that if an item called `name` exists,
This can be used for maintaining backwards compatibility.
-This can be also used for setting quick access names for things, e.g. if
+This can also set quick access names for things, e.g. if
you have an item called `epiclylongmodname:stuff`, you could do
minetest.register_alias("stuff", "epiclylongmodname:stuff")
and be able to use `/giveme stuff`.
+Mapgen aliases
+--------------
+In a game, a certain number of these must be set to tell core mapgens which
+of the game's nodes are to be used by the core mapgens. For example:
+
+ minetest.register_alias("mapgen_stone", "default:stone")
+
+### Aliases needed for all mapgens except Mapgen v6
+
+Base terrain:
+
+"mapgen_stone"
+"mapgen_water_source"
+"mapgen_river_water_source"
+
+Caves:
+
+"mapgen_lava_source"
+
+Dungeons:
+
+Only needed for registered biomes where 'node_stone' is stone:
+"mapgen_cobble"
+"mapgen_stair_cobble"
+"mapgen_mossycobble"
+Only needed for registered biomes where 'node_stone' is desert stone:
+"mapgen_desert_stone"
+"mapgen_stair_desert_stone"
+Only needed for registered biomes where 'node_stone' is sandstone:
+"mapgen_sandstone"
+"mapgen_sandstonebrick"
+"mapgen_stair_sandstone_block"
+
+### Aliases needed for Mapgen v6
+
+Terrain and biomes:
+
+"mapgen_stone"
+"mapgen_water_source"
+"mapgen_lava_source"
+"mapgen_dirt"
+"mapgen_dirt_with_grass"
+"mapgen_sand"
+"mapgen_gravel"
+"mapgen_desert_stone"
+"mapgen_desert_sand"
+"mapgen_dirt_with_snow"
+"mapgen_snowblock"
+"mapgen_snow"
+"mapgen_ice"
+
+Flora:
+
+"mapgen_tree"
+"mapgen_leaves"
+"mapgen_apple"
+"mapgen_jungletree"
+"mapgen_jungleleaves"
+"mapgen_junglegrass"
+"mapgen_pine_tree"
+"mapgen_pine_needles"
+
+Dungeons:
+
+"mapgen_cobble"
+"mapgen_stair_cobble"
+"mapgen_mossycobble"
+"mapgen_stair_desert_stone"
+
Textures
--------
Mods should generally prefix their textures with `modname_`, e.g. given
default_dirt.png^default_grass_side.png
-`default_grass_side.png` is overlayed over `default_dirt.png`.
+`default_grass_side.png` is overlaid over `default_dirt.png`.
The texture with the lower resolution will be automatically upscaled to
the higher resolution texture.
Example:
- default_apple.png^[invert:rgb
+ default_apple.png^[invert:rgb
#### `[brighten`
Brightens the texture.
palette). These nodes can have 32 different colors, and the palette
should contain 32 pixels.
Examples:
- * `param2 = 17` is 2 * 8 + 1, so the rotation is 1 and the third (= 2 + 1)
- pixel will be picked from the palette.
- * `param2 = 35` is 4 * 8 + 3, so the rotation is 3 and the fifth (= 4 + 1)
- pixel will be picked from the palette.
+ * `param2 = 17` is 2 * 8 + 1, so the rotation is 1 and the third (= 2 + 1)
+ pixel will be picked from the palette.
+ * `param2 = 35` is 4 * 8 + 3, so the rotation is 3 and the fifth (= 4 + 1)
+ pixel will be picked from the palette.
* `drawtype = "colorfacedir"` for nodes which use the first
three bits of `param2` for palette indexing. The remaining
five bits are describing rotation, as in `facedir` draw type.
palette). These nodes can have 8 different colors, and the
palette should contain 8 pixels.
Examples:
- * `param2 = 17` is 0 * 32 + 17, so the rotation is 17 and the
- first (= 0 + 1) pixel will be picked from the palette.
- * `param2 = 35` is 1 * 32 + 3, so the rotation is 3 and the
- second (= 1 + 1) pixel will be picked from the palette.
+ * `param2 = 17` is 0 * 32 + 17, so the rotation is 17 and the
+ first (= 0 + 1) pixel will be picked from the palette.
+ * `param2 = 35` is 1 * 32 + 3, so the rotation is 3 and the
+ second (= 1 + 1) pixel will be picked from the palette.
To colorize a node on the map, set its `param2` value (according
to the node's draw type).
connect_left = box OR {box1, box2, ...}
connect_back = box OR {box1, box2, ...}
connect_right = box OR {box1, box2, ...}
+ -- The following `disconnected_*` boxes are the opposites of the
+ -- `connect_*` ones above, i.e. when a node has no suitable neighbour
+ -- on the respective side, the corresponding disconnected box is drawn.
+ disconnected_top = box OR {box1, box2, ...}
+ disconnected_bottom = box OR {box1, box2, ...}
+ disconnected_front = box OR {box1, box2, ...}
+ disconnected_left = box OR {box1, box2, ...}
+ disconnected_back = box OR {box1, box2, ...}
+ disconnected_right = box OR {box1, box2, ...}
+ disconnected = box OR {box1, box2, ...} -- when there is *no* neighbour
+ disconnected_sides = box OR {box1, box2, ...} -- when there are *no* neighbours to the sides
}
A `box` is defined as:
for reverse compatibility. New code should prefer `column_height_max`.
The `column_midpoint_factor` parameter controls the position of the column at which
-ore eminates from. If 1, columns grow upward. If 0, columns grow downward. If 0.5,
+ore emanates from. If 1, columns grow upward. If 0, columns grow downward. If 0.5,
columns grow equally starting from each direction. `column_midpoint_factor` is a
decimal number ranging in value from 0 to 1. If this parameter is not specified,
the default is 0.5.
### `vein`
Creates veins of ore varying in density by according to the intersection of two
-instances of 3d perlin noise with diffferent seeds, both described by
+instances of 3d perlin noise with different seeds, both described by
`noise_params`.
`random_factor` varies the influence random chance has on placement of an ore
This ore type is difficult to control since it is sensitive to small changes.
The following is a decent set of parameters to work from:
- noise_params = {
- offset = 0,
- scale = 3,
- spread = {x=200, y=200, z=200},
- seed = 5390,
- octaves = 4,
- persist = 0.5,
- flags = "eased",
- },
- noise_threshold = 1.6
+ noise_params = {
+ offset = 0,
+ scale = 3,
+ spread = {x=200, y=200, z=200},
+ seed = 5390,
+ octaves = 4,
+ persist = 0.5,
+ flags = "eased",
+ },
+ noise_threshold = 1.6
**WARNING**: Use this ore type *very* sparingly since it is ~200x more
computationally expensive than any other ore.
Creates a single undulating ore stratum that is continuous across mapchunk
borders and horizontally spans the world.
-The 2D perlin noise described by `noise_params` varies the Y co-ordinate of the
+The 2D perlin noise described by `noise_params` defines the Y co-ordinate of the
stratum midpoint. The 2D perlin noise described by `np_stratum_thickness`
-varies the stratum's vertical thickness (in units of nodes). Due to being
+defines the stratum's vertical thickness (in units of nodes). Due to being
continuous across mapchunk borders the stratum's vertical thickness is
unlimited.
+If the noise parameter `noise_params` is omitted the ore will occur from y_min
+to y_max in a simple horizontal stratum.
+
+A parameter `stratum_thickness` can be provided instead of the noise parameter
+`np_stratum_thickness`, to create a constant thickness.
+
+Leaving out one or both noise parameters makes the ore generation less intensive,
+useful when adding multiple strata.
+
`y_min` and `y_max` define the limits of the ore generation and for performance
reasons should be set as close together as possible but without clipping the
stratum's Y variation.
-If either of the 2 noise parameters are omitted the ore will occur from y_min
-to y_max in a simple horizontal stratum. As this does not compute noise
-performance improves, and is ideal for placing many layers.
-
Each node in the stratum has a 1-in-`clust_scarcity` chance of being ore, so a
solid-ore stratum would require a `clust_scarcity` of 1.
* The `size` field is a 3D vector containing the dimensions of the provided schematic. (required)
* The `yslice_prob` field is a table of {ypos, prob} which sets the `ypos`th vertical slice
- of the schematic to have a `prob / 256 * 100` chance of occuring. (default: 255)
+ of the schematic to have a `prob / 256 * 100` chance of occurring. (default: 255)
* The `data` field is a flat table of MapNode tables making up the schematic,
in the order of `[z [y [x]]]`. (required)
Each MapNode table contains:
- * `name`: the name of the map node to place (required)
- * `prob` (alias `param1`): the probability of this node being placed (default: 255)
- * `param2`: the raw param2 value of the node being placed onto the map (default: 0)
- * `force_place`: boolean representing if the node should forcibly overwrite any
- previous contents (default: false)
+ * `name`: the name of the map node to place (required)
+ * `prob` (alias `param1`): the probability of this node being placed (default: 255)
+ * `param2`: the raw param2 value of the node being placed onto the map (default: 0)
+ * `force_place`: boolean representing if the node should forcibly overwrite any
+ previous contents (default: false)
About probability values:
* `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
+Return value of this function will determine 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:
* `description`: Set the item stack's description. Defaults to `idef.description`
* `color`: A `ColorString`, which sets the stack's color.
* `palette_index`: If the item has a palette, this is used to get the
- current color from the palette.
+ current color from the palette.
Example stuff:
* 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)
+* Must be used after `size` element.
+* Defines the position on the game window of the formspec's `anchor` point.
+* For X and Y, 0.0 and 1.0 represent opposite edges of the game window, for example:
+ * [0.0, 0.0] sets the position to the top left corner of the game window.
+ * [1.0, 1.0] sets the position to the bottom right of the game window.
+* Defaults to the center of the game window [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)
+* Must be used after both `size` and `position` (if present) elements.
+* Defines the location of the anchor point within the formspec.
+* For X and Y, 0.0 and 1.0 represent opposite edges of the formspec, for example:
+ * [0.0, 1.0] sets the anchor to the bottom left corner of the formspec.
+ * [1.0, 0.0] sets the anchor to the top right of the formspec.
+* Defaults to the center of the formspec [0.5, 0.5].
+
+* `position` and `anchor` elements need suitable values to avoid a formspec
+ extending off the game window due to particular game window sizes.
#### `container[<X>,<Y>]`
* Start of a container block, moves all physical elements in the container by (X, Y)
#### `item_image_button[<X>,<Y>;<W>,<H>;<item name>;<name>;<label>]`
* `x`, `y`, `w`, `h`, `name` and `label` work as per button
* `item name` is the registered name of an item/node,
- tooltip will be made out of its description
- to override it use tooltip element
+ tooltip will be made out of its description
+ to override it use tooltip element
* Position and size units are inventory slots
#### `button_exit[<X>,<Y>;<W>,<H>;<name>;<label>]`
* `w` and `h` are the size of the itemlist
* `name` fieldname sent to server on doubleclick value is current selected element
* `listelements` can be prepended by #color in hexadecimal format RRGGBB (only),
- * if you want a listelement to start with "#" write "##".
+ * if you want a listelement to start with "#" write "##".
#### `textlist[<X>,<Y>;<W>,<H>;<name>;<listelem 1>,<listelem 2>,...,<listelem n>;<selected idx>;<transparent>]`
* Scrollable itemlist showing arbitrary text elements
* `w` and `h` are the size of the item list
* `name` fieldname sent to server on doubleclick value is current selected element
* `listelements` can be prepended by #RRGGBB (only) in hexadecimal format
- * if you want a listelement to start with "#" write "##"
+ * if you want a listelement to start with "#" write "##"
* Index to be selected within textlist
* `true`/`false`: draw transparent background
* See also `minetest.explode_textlist_event` (main menu: `engine.explode_textlist_event`)
#### `dropdown[<X>,<Y>;<W>;<name>;<item 1>,<item 2>, ...,<item n>;<selected idx>]`
* Show a dropdown field
* **Important note**: There are two different operation modes:
- 1. handle directly on change (only changed dropdown is submitted)
- 2. read the value on pressing a button (all dropdown values are available)
+ 1. handle directly on change (only changed dropdown is submitted)
+ 2. read the value on pressing a button (all dropdown values are available)
* `x` and `y` position of dropdown
* Width of dropdown
* Fieldname data is transferred to Lua
#### `scrollbar[<X>,<Y>;<W>,<H>;<orientation>;<name>;<value>]`
* Show a scrollbar
* There are two ways to use it:
- 1. handle the changed event (only changed scrollbar is available)
- 2. read the value on pressing a button (all scrollbars are available)
+ 1. handle the changed event (only changed scrollbar is available)
+ 2. read the value on pressing a button (all scrollbars are available)
* `x` and `y`: position of trackbar
* `w` and `h`: width and height
* `orientation`: `vertical`/`horizontal`
#### `tableoptions[<opt 1>;<opt 2>;...]`
* Sets options for `table[]`
* `color=#RRGGBB`
- * default text color (`ColorString`), defaults to `#FFFFFF`
+ * default text color (`ColorString`), defaults to `#FFFFFF`
* `background=#RRGGBB`
- * table background color (`ColorString`), defaults to `#000000`
+ * table background color (`ColorString`), defaults to `#000000`
* `border=<true/false>`
- * should the table be drawn with a border? (default: `true`)
+ * should the table be drawn with a border? (default: `true`)
* `highlight=#RRGGBB`
- * highlight background color (`ColorString`), defaults to `#466432`
+ * highlight background color (`ColorString`), defaults to `#466432`
* `highlight_text=#RRGGBB`
- * highlight text color (`ColorString`), defaults to `#FFFFFF`
+ * highlight text color (`ColorString`), defaults to `#FFFFFF`
* `opendepth=<value>`
- * all subtrees up to `depth < value` are open (default value = `0`)
- * only useful when there is a column of type "tree"
+ * all subtrees up to `depth < value` are open (default value = `0`)
+ * only useful when there is a column of type "tree"
#### `tablecolumns[<type 1>,<opt 1a>,<opt 1b>,...;<type 2>,<opt 2a>,<opt 2b>;...]`
* Sets columns for `table[]`
* Types: `text`, `image`, `color`, `indent`, `tree`
* `text`: show cell contents as text
* `image`: cell contents are an image index, use column options to define images
- * `color`: cell contents are a ColorString and define color of following cell
+ * `color`: cell contents are a ColorString and define color of following cell
* `indent`: cell contents are a number and define indentation of following cell
* `tree`: same as indent, but user can open and close subtrees (treeview-like)
* Column options:
* `minetest.colorize(color, message)`:
* Equivalent to:
`minetest.get_color_escape_sequence(color) ..
- message ..
- minetest.get_color_escape_sequence("#ffffff")`
+ message ..
+ minetest.get_color_escape_sequence("#ffffff")`
* `minetest.get_background_escape_sequence(color)`
* `color` is a ColorString
* The escape sequence sets the background of the whole text element to
Spatial Vectors
---------------
-* `vector.new(a[, b, c])`: returns a vector:
+For the following functions, `v`, `v1`, `v2` are vectors, `p1`, `p2` are positions:
+
+* `vector.new(a[, b, c])`:
+ * Returns a vector.
* A copy of `a` if `a` is a vector.
- * `{x = a, y = b, z = c}`, if all `a, b, c` are defined
-* `vector.direction(p1, p2)`: returns a vector
-* `vector.distance(p1, p2)`: returns a number
-* `vector.length(v)`: returns a number
-* `vector.normalize(v)`: returns a vector
-* `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
+ * `{x = a, y = b, z = c}`, if all of `a`, `b`, `c` are defined numbers.
+* `vector.direction(p1, p2)`:
+ * Returns a vector of length 1 with direction `p1` to `p2`.
+ * If `p1` and `p2` are identical, returns `{x = 0, y = 0, z = 0}`.
+* `vector.distance(p1, p2)`:
+ * Returns zero or a positive number, the distance between `p1` and `p2`.
+* `vector.length(v)`:
+ * Returns zero or a positive number, the length of vector `v`.
+* `vector.normalize(v)`:
+ * Returns a vector of length 1 with direction of vector `v`.
+ * If `v` has zero length, returns `{x = 0, y = 0, z = 0}`.
+* `vector.floor(v)`:
+ * Returns a vector, each dimension rounded down.
+* `vector.round(v)`:
+ * Returns a vector, each dimension rounded to nearest integer.
+* `vector.apply(v, func)`:
+ * Returns a vector where the function `func` has been applied to each component.
+* `vector.equals(v1, v2)`:
+ * Returns a boolean, `true` if the vectors are identical.
+* `vector.sort(v1, v2)`:
+ * Returns in order minp, maxp vectors of the cuboid defined by `v1`, `v2`.
For the following functions `x` can be either a vector or a number:
-* `vector.add(v, x)`: returns a vector
-* `vector.subtract(v, x)`: returns a vector
-* `vector.multiply(v, x)`: returns a scaled vector or Schur product
-* `vector.divide(v, x)`: returns a scaled vector or Schur quotient
+* `vector.add(v, x)`:
+ * Returns a vector.
+* `vector.subtract(v, x)`:
+ * Returns a vector.
+* `vector.multiply(v, x)`:
+ * Returns a scaled vector or Schur product.
+* `vector.divide(v, x)`:
+ * Returns a scaled vector or Schur quotient.
Helper functions
----------------
* `dump2(obj, name, dumped)`: returns a string which makes `obj` human readable,
- handles reference loops
+ handles reference loops
* `obj`: arbitrary variable
* `name`: string, default: `"_"`
* `dumped`: table, default: `{}`
* `sep_is_pattern`: boolean, it specifies whether separator is a plain
string or a pattern (regex), default: `false`
* e.g. `"a,b":split","` returns `{"a","b"}`
-* `string:trim()`: returns the string whithout whitespace pre- and suffixes
+* `string:trim()`: returns the string without whitespace pre- and suffixes
* e.g. `"\n \t\tfoo bar\t ":trim()` returns `"foo bar"`
* `minetest.wrap_text(str, limit, as_table)`: returns a string or table
* Adds newlines to the string to keep it within the specified character
when translation. Due to how translations are implemented, the original translation string **must** have
its arguments in increasing order, without gaps or repetitions, starting from 1.
* `@=` acts as a literal `=`. It is not required in strings given to `minetest.translate`, but is in translation
- files to avoid begin confused with the `=` separating the original from the translation.
+ files to avoid being confused with the `=` separating the original from the translation.
* `@\n` (where the `\n` is a literal newline) acts as a literal newline. As with `@=`, this escape is not required
in strings given to `minetest.translate`, but is in translation files.
* `@n` acts as a literal newline as well.
max_jitter = 0.5, -- maximum packet time jitter
avg_jitter = 0.03, -- average packet time jitter
connection_uptime = 200, -- seconds since client connected
- prot_vers = 31, -- protocol version used by client
+ protocol_version = 32, -- protocol version used by client
-- following information is available on debug build only!!!
-- DO NOT USE IN MODS
--ser_vers = 26, -- serialization version used by client
if they don't exist.
* `minetest.get_dir_list(path, [is_dir])`: returns list of entry names
* is_dir is one of:
- * nil: return all entries,
- * true: return only subdirectory names, or
- * false: return only file names.
+ * nil: return all entries,
+ * true: return only subdirectory names, or
+ * false: return only file names.
+* `minetest.safe_file_write(path, content)`: returns boolean indicating success
+ * Replaces contents of file at path with new contents in a safe (atomic) way.
+ Use this instead of below code when writing e.g. database files:
+ `local f = io.open(path, "wb"); f:write(content); f:close()`
* `minetest.get_version()`: returns a table containing components of the
engine version. Components:
* `project`: Name of the project, eg, "Minetest"
* `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
+ reliable or verifiable. 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 minetest.check_for_falling then ... end`.
+* `minetest.sha1(data, [raw])`: returns the sha1 hash of data
+ * `data`: string of data to hash
+ * `raw`: return raw bytes instead of hex digits, default: false
### Logging
* `minetest.debug(...)`
* `minetest.register_craftitem(name, item definition)`
* `minetest.unregister_item(name)`
* `minetest.register_alias(name, convert_to)`
+ * Also use this to set the 'mapgen aliases' needed in a game for the core
+ * mapgens. See 'Mapgen aliases' section above.
* `minetest.register_alias_force(name, convert_to)`
* `minetest.register_craft(recipe)`
* Check recipe table syntax for different types below.
* `minetest.register_on_placenode(func(pos, newnode, placer, oldnode, itemstack, pointed_thing))`
* Called when a node has been placed
* If return `true` no item is taken from `itemstack`
+ * `placer` may be any valid ObjectRef or nil.
* **Not recommended**; use `on_construct` or `after_place_node` in node definition
whenever possible
* `minetest.register_on_dignode(func(pos, oldnode, digger))`
* **Not recommended**; Use `on_destruct` or `after_dig_node` in node definition
whenever possible
* `minetest.register_on_punchnode(func(pos, node, puncher, pointed_thing))`
- * Called when a node is punched
+ * Called when a node is punched
* `minetest.register_on_generated(func(minp, maxp, blockseed))`
- * Called after generating a piece of world. Modifying nodes inside the area
- is a bit faster than usually.
+ * Called after generating a piece of world. Modifying nodes inside the area
+ is a bit faster than usually.
* `minetest.register_on_newplayer(func(ObjectRef))`
- * Called after a new player has been created
+ * Called after a new player has been created
* `minetest.register_on_dieplayer(func(ObjectRef))`
- * Called when a player dies
+ * Called when a player dies
* `minetest.register_on_punchplayer(func(player, hitter, time_from_last_punch, tool_capabilities, dir, damage))`
- * Called when a player is punched
- * `player` - ObjectRef - Player that was punched
- * `hitter` - ObjectRef - Player that hit
- * `time_from_last_punch`: Meant for disallowing spamming of clicks (can be nil)
- * `tool_capabilities`: capability table of used tool (can be nil)
- * `dir`: unit vector of direction of punch. Always defined. Points from
- the puncher to the punched.
- * `damage` - number that represents the damage calculated by the engine
- * should return `true` to prevent the default damage mechanism
+ * Called when a player is punched
+ * `player` - ObjectRef - Player that was punched
+ * `hitter` - ObjectRef - Player that hit
+ * `time_from_last_punch`: Meant for disallowing spamming of clicks (can be nil)
+ * `tool_capabilities`: capability table of used tool (can be nil)
+ * `dir`: unit vector of direction of punch. Always defined. Points from
+ the puncher to the punched.
+ * `damage` - number that represents the damage calculated by the engine
+ * should return `true` to prevent the default damage mechanism
* `minetest.register_on_player_hpchange(func(player, hp_change), modifier)`
* Called when the player gets damaged or healed
* `player`: ObjectRef of the player
modifiers can return true as a second argument to stop the execution of further functions.
Non-modifiers receive the final hp change calculated by the modifiers.
* `minetest.register_on_respawnplayer(func(ObjectRef))`
- * Called when player is to be respawned
- * Called _before_ repositioning of player occurs
- * return true in func to disable regular player placement
+ * Called when player is to be respawned
+ * Called _before_ repositioning of player occurs
+ * return true in func to disable regular player placement
* `minetest.register_on_prejoinplayer(func(name, ip))`
- * Called before a player joins the game
- * If it returns a string, the player is disconnected with that string as reason
+ * Called before a player joins the game
+ * If it returns a string, the player is disconnected with that string as reason
* `minetest.register_on_joinplayer(func(ObjectRef))`
* Called when a player joins the game
* `minetest.register_on_leaveplayer(func(ObjectRef, timed_out))`
* Called when a player leaves the game
* `timed_out`: True for timeout, false for other reasons.
+* `minetest.register_on_auth_fail(func(name, ip))`
+ * Called when a client attempts to log into an account but supplies the wrong password.
+ * `ip`: The IP address of the client.
+ * `name`: The account the client attempted to log into.
* `minetest.register_on_cheat(func(ObjectRef, cheat))`
* Called when a player cheats
* `cheat`: `{type=<cheat_type>}`, where `<cheat_type>` is one of:
* `minetest.register_on_protection_violation(func(pos, name))`
* Called by `builtin` and mods when a player violates protection at a position
(eg, digs a node or punches a protected entity).
- * The registered functions can be called using `minetest.record_protection_violation`
- * The provided function should check that the position is protected by the mod
- calling this function before it prints a message, if it does, to allow for
- multiple protection mods.
+ * The registered functions can be called using `minetest.record_protection_violation`
+ * The provided function should check that the position is protected by the mod
+ calling this function before it prints a message, if it does, to allow for
+ multiple protection mods.
* `minetest.register_on_item_eat(func(hp_change, replace_with_item, itemstack, user, pointed_thing))`
* Called when an item is eaten, by `minetest.item_eat`
* Return `true` or `itemstack` to cancel the default item eat response (i.e.: hp increase)
the default of `give_to_singleplayer` is true
* To allow players with `basic_privs` to grant, see `basic_privs` minetest.conf setting.
* `on_grant(name, granter_name)`: Called when given to player `name` by `granter_name`.
- `granter_name` will be nil if the priv was granted by a mod.
+ `granter_name` will be nil if the priv was granted by a mod.
* `on_revoke(name, revoker_name)`: Called when taken from player `name` by `revoker_name`.
- `revoker_name` will be nil if the priv was revoked by a mod
+ `revoker_name` will be nil if the priv was revoked by a mod
* Note that the above two callbacks will be called twice if a player is responsible -
once with the player name, and then with a nil player name.
* Return true in the above callbacks to stop register_on_priv_grant or revoke being called.
-* `minetest.register_authentication_handler(handler)`
- * See `minetest.builtin_auth_handler` in `builtin.lua` for reference
+* `minetest.register_authentication_handler(authentication handler definition)`
+ * Registers an auth handler that overrides the builtin one
+ * This function can be called by a single mod once only.
### Setting-related
* `minetest.settings`: Settings object containing all of the settings from the
parses it as a position (in the format `(1,2,3)`). Returns a position or nil.
### Authentication
-* `minetest.notify_authentication_modified(name)`
- * Should be called by the authentication handler if privileges changes.
- * `name`: string, if ommited, everybody is reported
-* `minetest.check_password_entry(name, entry, password)`
- * Returns true if the "db entry" for a player with name matches given
- * password, false otherwise.
- * The "db entry" is the usually player-individual value that is derived
- * from the player's chosen password and stored on the server in order to allow
- * authentication whenever the player desires to log in.
- * Only use this function for making it possible to log in via the password from
- * via protocols like IRC, other uses for inside the game are frowned upon.
-* `minetest.get_password_hash(name, raw_password)`
- * Convert a name-password pair to a password hash that Minetest can use.
- * The returned value alone is not a good basis for password checks based
- * on comparing the password hash in the database with the password hash
- * from the function, with an externally provided password, as the hash
- * in the db might use the new SRP verifier format.
- * For this purpose, use `minetest.check_password_entry` instead.
* `minetest.string_to_privs(str)`: returns `{priv1=true,...}`
* `minetest.privs_to_string(privs)`: returns `"priv1,priv2,..."`
* Convert between two privilege representations
-* `minetest.set_player_password(name, password_hash)`
-* `minetest.set_player_privs(name, {priv1=true,...})`
* `minetest.get_player_privs(name) -> {priv1=true,...}`
-* `minetest.auth_reload()`
* `minetest.check_player_privs(player_or_name, ...)`: returns `bool, missing_privs`
* A quickhand for checking privileges.
- * `player_or_name`: Either a Player object or the name of a player.
- * `...` is either a list of strings, e.g. `"priva", "privb"` or
- a table, e.g. `{ priva = true, privb = true }`.
-* `minetest.get_player_ip(name)`: returns an IP address string
+ * `player_or_name`: Either a Player object or the name of a player.
+ * `...` is either a list of strings, e.g. `"priva", "privb"` or
+ a table, e.g. `{ priva = true, privb = true }`.
+
+* `minetest.check_password_entry(name, entry, password)`
+ * Returns true if the "password entry" for a player with name matches given
+ password, false otherwise.
+ * The "password entry" is the password representation generated by the engine
+ as returned as part of a `get_auth()` call on the auth handler.
+ * Only use this function for making it possible to log in via password from
+ external protocols such as IRC, other uses are frowned upon.
+* `minetest.get_password_hash(name, raw_password)`
+ * Convert a name-password pair to a password hash that Minetest can use.
+ * The returned value alone is not a good basis for password checks based
+ on comparing the password hash in the database with the password hash
+ from the function, with an externally provided password, as the hash
+ in the db might use the new SRP verifier format.
+ * For this purpose, use `minetest.check_password_entry` instead.
+* `minetest.get_player_ip(name)`: returns an IP address string for the player `name`
+ * The player needs to be online for this to be successful.
+
+* `minetest.get_auth_handler()`: Return the currently active auth handler
+ * See the `Authentication handler definition`
+ * Use this to e.g. get the authentication data for a player:
+ `local auth_data = minetest.get_auth_handler().get_auth(playername)`
+* `minetest.notify_authentication_modified(name)`
+ * Must be called by the authentication handler for privilege changes.
+ * `name`: string; if omitted, all auth data should be considered modified
+* `minetest.set_player_password(name, password_hash)`: Set password hash of player `name`
+* `minetest.set_player_privs(name, {priv1=true,...})`: Set privileges of player `name`
+* `minetest.auth_reload()`
+ * See `reload()` in authentication handler definition
`minetest.set_player_password`, `minetest_set_player_privs`, `minetest_get_player_privs`
-and `minetest.auth_reload` call the authetification handler.
+and `minetest.auth_reload` call the authentication handler.
### Chat
* `minetest.chat_send_all(text)`
* `node`: table `{name=string, param1=number, param2=number}`
* If param1 or param2 is omitted, it's set to `0`.
* e.g. `minetest.set_node({x=0, y=10, z=0}, {name="default:wood"})`
+* `minetest.bulk_set_node({pos1, pos2, pos3, ...}, node)`
+ * Set node on all positions set in the first argument.
+ * e.g. `minetest.bulk_set_node({{x=0, y=1, z=1}, {x=1, y=2, z=2}}, {name="default:stone"})`
+ * For node specification or position syntax see `minetest.set_node` call
+ * Faster than set_node due to single call, but still considerably slower than
+ Voxel Manipulators (LVM) for large numbers of nodes.
+ Unlike LVMs, this will call node callbacks. It also allows setting nodes in spread out
+ positions which would cause LVMs to waste memory.
+ For setting a cube, this is 1.3x faster than set_node whereas LVM is 20x faster.
* `minetest.swap_node(pos, node)`
* Set node at position, but don't remove metadata
* `minetest.remove_node(pos)`
* Return voxel manipulator object.
* Loads the manipulator from the map if positions are passed.
* `minetest.set_gen_notify(flags, {deco_ids})`
- * Set the types of on-generate notifications that should be collected
- * `flags` is a flag field with the available flags: `dungeon`, `temple`, `cave_begin`,
- `cave_end`, `large_cave_begin`, `large_cave_end`, `decoration`
- * The second parameter is a list of IDS of decorations which notification is requested for
-* `get_gen_notify()`: returns a flagstring and a table with the `deco_id`s
+ * Set the types of on-generate notifications that should be collected.
+ * `flags` is a flag field with the available flags:
+ * dungeon
+ * temple
+ * cave_begin
+ * cave_end
+ * large_cave_begin
+ * large_cave_end
+ * decoration
+ * The second parameter is a list of IDS of decorations which notification
+ is requested for.
+* `get_gen_notify()`
+ * Returns a flagstring and a table with the `deco_id`s.
* `minetest.get_mapgen_object(objectname)`
* Return requested mapgen object if available (see "Mapgen objects")
+* `minetest.get_heat(pos)`
+ * Returns the heat at the position, or `nil` on failure.
+* `minetest.get_humidity(pos)`
+ * Returns the humidity at the position, or `nil` on failure.
+* `minetest.get_biome_data(pos)`
+ * Returns a table containing:
+ * `biome` the biome id of the biome at that position
+ * `heat` the heat at the position
+ * `humidity` the humidity at the position
+ * Or returns `nil` on failure.
* `minetest.get_biome_id(biome_name)`
- * Returns the biome id, as used in the biomemap Mapgen object, for a
- given biome_name string.
-* `minetest.get_mapgen_params()` Returns mapgen parameters, a table containing
- `mgname`, `seed`, `chunksize`, `water_level`, and `flags`.
- * Deprecated: use `minetest.get_mapgen_setting(name)` instead
+ * Returns the biome id, as used in the biomemap Mapgen object and returned
+ by `minetest.get_biome_data(pos)`, for a given biome_name string.
+* `minetest.get_mapgen_params()`
+ * Deprecated: use `minetest.get_mapgen_setting(name)` instead.
+ * Returns a table containing:
+ * `mgname`
+ * `seed`
+ * `chunksize`
+ * `water_level`
+ * `flags`
* `minetest.set_mapgen_params(MapgenParams)`
- * Deprecated: use `minetest.set_mapgen_setting(name, value, override)` instead
- * Set map generation parameters
- * Function cannot be called after the registration period; only initialization
- and `on_mapgen_init`
- * Takes a table as an argument with the fields `mgname`, `seed`, `water_level`,
- and `flags`.
- * Leave field unset to leave that parameter unchanged
- * `flags` contains a comma-delimited string of flags to set,
- or if the prefix `"no"` is attached, clears instead.
- * `flags` is in the same format and has the same options as `mg_flags` in `minetest.conf`
+ * Deprecated: use `minetest.set_mapgen_setting(name, value, override)`
+ instead.
+ * Set map generation parameters.
+ * Function cannot be called after the registration period; only
+ initialization and `on_mapgen_init`.
+ * Takes a table as an argument with the fields:
+ * `mgname`
+ * `seed`
+ * `chunksize`
+ * `water_level`
+ * `flags`
+ * Leave field unset to leave that parameter unchanged.
+ * `flags` contains a comma-delimited string of flags to set, or if the
+ prefix `"no"` is attached, clears instead.
+ * `flags` is in the same format and has the same options as `mg_flags` in
+ `minetest.conf`.
* `minetest.get_mapgen_setting(name)`
- * Gets the *active* mapgen setting (or nil if none exists) in string format with the following
- order of precedence:
+ * Gets the *active* mapgen setting (or nil if none exists) in string
+ format with the following order of precedence:
1) Settings loaded from map_meta.txt or overrides set during mod execution
2) Settings set by mods without a metafile override
3) Settings explicitly set in the user config file, minetest.conf
4) Settings set as the user config default
* `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
+ * 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])`
- * Sets a mapgen param to `value`, and will take effect if the corresponding mapgen setting
- 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"`
+ * Sets a mapgen param to `value`, and will take effect if the corresponding
+ mapgen setting 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])`
- * Same as above, except value is a NoiseParams table.
+ * 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
- should be applied to the default config or current active config
-* `minetest.get_noiseparams(name)`: returns a table of the noiseparams for name
+ * 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 should be applied to the default config or current
+ active config.
+* `minetest.get_noiseparams(name)`
+ * Returns a table of the noiseparams for name.
* `minetest.generate_ores(vm, pos1, pos2)`
- * Generate all registered ores within the VoxelManip `vm` and in the area from `pos1` to `pos2`.
+ * Generate all registered ores within the VoxelManip `vm` and in the area
+ from `pos1` to `pos2`.
* `pos1` and `pos2` are optional and default to mapchunk minp and maxp.
* `minetest.generate_decorations(vm, pos1, pos2)`
- * Generate all registered decorations within the VoxelManip `vm` and in the area from `pos1` to `pos2`.
+ * Generate all registered decorations within the VoxelManip `vm` and in the
+ area from `pos1` to `pos2`.
* `pos1` and `pos2` are optional and default to mapchunk minp and maxp.
* `minetest.clear_objects([options])`
* Clear all objects in the environment
clear objects in unloaded mapblocks only when the mapblocks are next activated.
* `minetest.emerge_area(pos1, pos2, [callback], [param])`
* Queue all blocks in the area from `pos1` to `pos2`, inclusive, to be asynchronously
- * fetched from memory, loaded from disk, or if inexistent, generates them.
+ fetched from memory, loaded from disk, or if inexistent, generates them.
* If `callback` is a valid Lua function, this will be called for each block emerged.
* The function signature of callback is:
- * `function EmergeAreaCallback(blockpos, action, calls_remaining, param)`
- * - `blockpos` is the *block* coordinates of the block that had been emerged
- * - `action` could be one of the following constant values:
- * `minetest.EMERGE_CANCELLED`, `minetest.EMERGE_ERRORED`, `minetest.EMERGE_FROM_MEMORY`,
- * `minetest.EMERGE_FROM_DISK`, `minetest.EMERGE_GENERATED`
- * - `calls_remaining` is the number of callbacks to be expected after this one
- * - `param` is the user-defined parameter passed to emerge_area (or nil if the
- * parameter was absent)
+ * `function EmergeAreaCallback(blockpos, action, calls_remaining, param)`
+ * `blockpos` is the *block* coordinates of the block that had been emerged
+ * `action` could be one of the following constant values:
+ * `minetest.EMERGE_CANCELLED`
+ * `minetest.EMERGE_ERRORED`
+ * `minetest.EMERGE_FROM_MEMORY`
+ * `minetest.EMERGE_FROM_DISK`
+ * `minetest.EMERGE_GENERATED`
+ * `calls_remaining` is the number of callbacks to be expected after this one
+ * `param` is the user-defined parameter passed to emerge_area (or nil if the
+ parameter was absent)
* `minetest.delete_area(pos1, pos2)`
* delete all mapblocks in the area from pos1 to pos2, inclusive
-* `minetest.line_of_sight(pos1, pos2, stepsize)`: returns `boolean, pos`
- * Check if there is a direct line of sight between `pos1` and `pos2`
+* `minetest.line_of_sight(pos1, pos2)`: returns `boolean, pos`
+ * Checks if there is anything other than air between pos1 and pos2.
+ * Returns false if something is blocking the sight.
* Returns the position of the blocking node when `false`
* `pos1`: First position
* `pos2`: Second position
- * `stepsize`: smaller gives more accurate results but requires more computing
- time. Default is `1`.
* `minetest.raycast(pos1, pos2, objects, liquids)`: returns `Raycast`
* Creates a `Raycast` object.
* `pos1`: start of the ray
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
+ returns left over ItemStack
* See `minetest.item_eat` and `minetest.register_on_item_eat`
### Formspec
* `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.
+ 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!**
* `input.width` = for example `3`
* `input.items` = for example
`{ stack1, stack2, stack3, stack4, stack 5, stack 6, stack 7, stack 8, stack 9 }`
- * `input.items` = `nil` if no recipe found
+ * `input.items` = `nil` if no recipe found
* `minetest.get_all_craft_recipes(query item)`: returns a table or `nil`
* returns indexed table with all registered recipes for query item (node)
or `nil` if no recipe was found
* Optional: Variable number of arguments that are passed to `func`
### Server
-* `minetest.request_shutdown([message],[reconnect],[delay])`: request for server shutdown. Will display `message` to clients,
- `reconnect` == true displays a reconnect button,
- `delay` adds an optional delay (in seconds) before shutdown
- negative delay cancels the current active shutdown
- zero delay triggers an immediate shutdown.
+* `minetest.request_shutdown([message],[reconnect],[delay])`: request for server shutdown. Will display `message` to clients.
+ * `reconnect` == true displays a reconnect button
+ * `delay` adds an optional delay (in seconds) before shutdown.
+ Negative delay cancels the current active shutdown.
+ Zero delay triggers an immediate shutdown.
* `minetest.cancel_shutdown_requests()`: cancel current delayed shutdown
* `minetest.get_server_status()`: returns server status string
* `minetest.get_server_uptime()`: returns the server uptime in seconds
* `minetest.remove_player(name)`: remove player from database (if he is not connected).
- * Does not remove player authentication data, minetest.player_exists will continue to return true.
+ * As auth data is not removed, minetest.player_exists will continue to return true.
+ Call the below method as well if you want to remove auth data too.
* Returns a code (0: successful, 1: no such player, 2: player is connected)
+* `minetest.remove_player_auth(name)`: remove player authentication data
+ * Returns boolean indicating success (false if player nonexistant)
### Bans
* `minetest.get_ban_list()`: returns the ban list (same as `minetest.get_ban_description("")`)
* `minetest.delete_particlespawner(id, player)`
* Delete `ParticleSpawner` with `id` (return value from `minetest.add_particlespawner`)
- * If playername is specified, only deletes on the player's client,
- * otherwise on all clients
+ * If playername is specified, only deletes on the player's client, otherwise on all clients
### Schematics
* `minetest.create_schematic(p1, p2, probability_list, filename, slice_prob_list)`
* `force_placement` is a boolean indicating whether nodes other than `air` and
`ignore` are replaced by the schematic
* Returns nil if the schematic could not be loaded.
+ * **Warning**: Once you have loaded a schematic from a file, it will be cached. Future calls
+ will always use the cached version and the replacement list defined for it,
+ regardless of whether the file or the replacement list parameter have changed.
+ The only way to load the file anew is to restart the server.
* `minetest.place_schematic_on_vmanip(vmanip, pos, schematic, rotation, replacement, force_placement)`:
- * This function is analagous to minetest.place_schematic, but places a schematic onto the
+ * This function is analogous to minetest.place_schematic, but places a schematic onto the
specified VoxelManip object `vmanip` instead of the whole map.
* Returns false if any part of the schematic was cut-off due to the VoxelManip not
containing the full area required, and true if the whole schematic was able to fit.
### Misc.
* `minetest.get_connected_players()`: returns list of `ObjectRefs`
+* `minetest.is_player(o)`: boolean, whether `o` is a player
* `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
* Compress a string of data.
* `method` is a string identifying the compression method to be used.
* Supported compression methods:
- * Deflate (zlib): `"deflate"`
+ * Deflate (zlib): `"deflate"`
* `...` indicates method-specific arguments. Currently defined arguments are:
- * Deflate: `level` - Compression level, `0`-`9` or `nil`.
+ * Deflate: `level` - Compression level, `0`-`9` or `nil`.
* `minetest.decompress(compressed_data, method, ...)`: returns data
* Decompress a string of data (using ZLib).
* See documentation on `minetest.compress()` for supported compression methods.
* `minetest.decode_base64(string)`: returns string
* Decodes a string encoded in base64.
* `minetest.is_protected(pos, name)`: returns boolean
- * Returns true, if player `name` shouldn't be abled to dig at `pos` or do other
- actions, defineable by mods, due to some mod-defined ownership-like concept.
+ * Returns true, if player `name` shouldn't be able to dig at `pos` or do other
+ actions, definable by mods, due to some mod-defined ownership-like concept.
Returns false or nil, if the player is allowed to do such actions.
+ * `name` will be "" for non-players or unknown players.
* This function should be overridden by protection mods and should be used to
check if a player can interact at a position.
* This function should call the old version of itself if the position is not
return old_is_protected(pos, name)
end
* `minetest.record_protection_violation(pos, name)`
- * This function calls functions registered with
- `minetest.register_on_protection_violation`.
+ * This function calls functions registered with
+ `minetest.register_on_protection_violation`.
+* `minetest.intersects_protection(minp, maxp, player_name, interval)
+ * Returns a boolean, returns true if the volume defined by `minp` and `maxp`
+ intersects a protected area not owned by `player_name`.
+ * Applies `is_protected()` to a 3D lattice of points in the defined volume.
+ The points are spaced evenly throughout the volume and have a spacing
+ similar to, but no larger than, `interval`.
+ * All corners and edges of the defined volume are checked.
+ * `interval` defaults to 4.
+ * `interval` should be carefully chosen and maximised to avoid an excessive
+ number of points being checked.
* `minetest.rotate_and_place(itemstack, placer, pointed_thing, infinitestacks, orient_flags)`
* Attempt to predict the desired orientation of the facedir-capable node
defined by `itemstack`, and place it accordingly (on-wall, on the floor, or
field is false or omitted (else, the itemstack is not changed). `orient_flags`
is an optional table containing extra tweaks to the placement code:
* `invert_wall`: if `true`, place wall-orientation on the ground and ground-
- orientation on the wall.
+ orientation on the wall.
* `force_wall` : if `true`, always place the node in wall orientation.
* `force_ceiling`: if `true`, always place on the ceiling.
* `force_floor`: if `true`, always place the node on the floor.
precedence over the first.
* `minetest.rotate_node(itemstack, placer, pointed_thing)`
* calls `rotate_and_place()` with infinitestacks set according to the state of
- the creative mode setting, and checks for "sneak" to set the `invert_wall`
- parameter.
+ the creative mode setting, and checks for "sneak" to set the `invert_wall`
+ parameter.
* `minetest.forceload_block(pos[, transient])`
* forceloads the position `pos`.
### Global objects
* `minetest.env`: `EnvRef` of the server environment and world.
* Any function in the minetest namespace can be called using the syntax
- `minetest.env:somefunction(somearguments)`
- instead of `minetest.somefunction(somearguments)`
+ `minetest.env:somefunction(somearguments)`
+ instead of `minetest.somefunction(somearguments)`
* Deprecated, but support is not to be dropped soon
### Global tables
#### Methods
* All methods in MetaDataRef
+* `set_tool_capabilities([tool_capabilities])`
+ * overrides the item's tool capabilities
+ * a nil value will clear the override data and restore the original behavior
### `StorageRef`
Mod metadata: per mod metadata, saved automatically.
* `set_armor_groups({group1=rating, group2=rating, ...})`
* `get_armor_groups()`: returns a table with the armor group ratings
* `set_animation(frame_range, frame_speed, frame_blend, frame_loop)`
- * `frame_range`: table {x=num, y=num}, default: `{x=1, y=1}`
- * `frame_speed`: number, default: `15.0`
- * `frame_blend`: number, default: `0.0`
- * `frame_loop`: boolean, default: `true`
+ * `frame_range`: table {x=num, y=num}, default: `{x=1, y=1}`
+ * `frame_speed`: number, default: `15.0`
+ * `frame_blend`: number, default: `0.0`
+ * `frame_loop`: boolean, default: `true`
* `get_animation()`: returns `range`, `frame_speed`, `frame_blend` and `frame_loop`
* `set_animation_frame_speed(frame_speed)`
- * `frame_speed`: number, default: `15.0`
+ * `frame_speed`: number, default: `15.0`
* `set_attach(parent, bone, position, rotation)`
* `bone`: string
* `position`: `{x=num, y=num, z=num}` (relative)
table {x, y, z} representing the player's instantaneous velocity in nodes/s
* `get_look_dir()`: get camera direction as a unit vector
* `get_look_vertical()`: pitch in radians
- * Angle ranges between -pi/2 and pi/2, which are straight up and down respectively.
+ * Angle ranges between -pi/2 and pi/2, which are straight up and down respectively.
* `get_look_horizontal()`: yaw in radians
- * Angle is counter-clockwise from the +z direction.
+ * Angle is counter-clockwise from the +z direction.
* `set_look_vertical(radians)`: sets look pitch
- * radians - Angle from looking forward, where positive is downwards.
+ * radians - Angle from looking forward, where positive is downwards.
* `set_look_horizontal(radians)`: sets look yaw
- * radians - Angle from the +z direction, where positive is counter-clockwise.
+ * radians - Angle from the +z direction, where positive is counter-clockwise.
* `get_look_pitch()`: pitch in radians - Deprecated as broken. Use `get_look_vertical`.
- * Angle ranges between -pi/2 and pi/2, which are straight down and up respectively.
+ * Angle ranges between -pi/2 and pi/2, which are straight down and up respectively.
* `get_look_yaw()`: yaw in radians - Deprecated as broken. Use `get_look_horizontal`.
- * Angle is counter-clockwise from the +x direction.
+ * Angle is counter-clockwise from the +x direction.
* `set_look_pitch(radians)`: sets look pitch - Deprecated. Use `set_look_vertical`.
* `set_look_yaw(radians)`: sets look yaw - Deprecated. Use `set_look_horizontal`.
* `get_breath()`: returns players breath
* `set_breath(value)`: sets players breath
- * values:
+ * values:
* `0`: player is drowning
* max: bubbles bar is not shown
* See Object Properties for more information
* `set_attribute(attribute, value)`:
* Sets an extra attribute with value on player.
- * `value` must be a string.
+ * `value` must be a string, or a number which will be converted to a string.
* If `value` is `nil`, remove attribute from player.
* `get_attribute(attribute)`:
* Returns value (a string) for extra attribute.
`"plain"` custom skyboxes (default: `true`)
* `get_sky()`: returns bgcolor, type, table of textures, clouds
* `set_clouds(parameters)`: set cloud parameters
- * `parameters` is a table with the following optional fields:
- * `density`: from `0` (no clouds) to `1` (full clouds) (default `0.4`)
- * `color`: basic cloud color with alpha channel, ColorSpec (default `#fff0f0e5`)
- * `ambient`: cloud color lower bound, use for a "glow at night" effect.
- ColorSpec (alpha ignored, default `#000000`)
- * `height`: cloud height, i.e. y of cloud base (default per conf, usually `120`)
- * `thickness`: cloud thickness in nodes (default `16`)
- * `speed`: 2D cloud speed + direction in nodes per second (default `{x=0, z=-2}`)
+ * `parameters` is a table with the following optional fields:
+ * `density`: from `0` (no clouds) to `1` (full clouds) (default `0.4`)
+ * `color`: basic cloud color with alpha channel, ColorSpec (default `#fff0f0e5`)
+ * `ambient`: cloud color lower bound, use for a "glow at night" effect.
+ ColorSpec (alpha ignored, default `#000000`)
+ * `height`: cloud height, i.e. y of cloud base (default per conf, usually `120`)
+ * `thickness`: cloud thickness in nodes (default `16`)
+ * `speed`: 2D cloud speed + direction in nodes per second (default `{x=0, z=-2}`)
* `get_clouds()`: returns a table with the current cloud parameters as in `set_clouds`
* `override_day_night_ratio(ratio or nil)`
* `0`...`1`: Overrides day-night ratio, controlling sunlight to a specific amount
* `nil`: Disables override, defaulting to sunlight based on day-night cycle
* `get_day_night_ratio()`: returns the ratio or nil if it isn't overridden
-* `set_local_animation(stand/idle, walk, dig, walk+dig, frame_speed=frame_speed)`
-
- set animation for player model in third person view
+* `set_local_animation(stand/idle, walk, dig, walk+dig, frame_speed=frame_speed)`:
+ set animation for player model in third person view
set_local_animation({x=0, y=79}, -- < stand/idle animation key frames
{x=168, y=187}, -- < walk animation key frames
* `is_known()`: returns `true` if the item name refers to a defined item type.
* `get_definition()`: returns the item definition table.
* `get_tool_capabilities()`: returns the digging properties of the item,
- or those of the hand if none are defined for this item type
+ or those of the hand if none are defined for this item type
* `add_wear(amount)`
* Increases wear by `amount` if the item is a tool
* `amount`: number, integer
* `add_item(item)`: returns leftover `ItemStack`
* Put some item or stack onto this stack
* `item_fits(item)`: returns `true` if item or stack can be fully added to
- this one.
+ this one.
* `take_item(n)`: returns taken `ItemStack`
* Take (and remove) up to `n` items from this stack
* `n`: number, default: `1`
* `next(min, max)`: return next integer random number [`min`...`max`]
* `rand_normal_dist(min, max, num_trials=6)`: return normally distributed random number [`min`...`max`]
* This is only a rough approximation of a normal distribution with:
- * `mean = (max - min) / 2`, and
- * `variance = (((max - min + 1) ^ 2) - 1) / (12 * num_trials)`
+ * `mean = (max - min) / 2`, and
+ * `variance = (((max - min + 1) ^ 2) - 1) / (12 * num_trials)`
* Increasing `num_trials` improves accuracy of the approximation
### `SecureRandom`
or `minetest.get_perlin(noiseparams)`.
#### Methods
-* `get2d(pos)`: returns 2D noise value at `pos={x=,y=}`
-* `get3d(pos)`: returns 3D noise value at `pos={x=,y=,z=}`
+* `get_2d(pos)`: returns 2D noise value at `pos={x=,y=}`
+* `get_3d(pos)`: returns 3D noise value at `pos={x=,y=,z=}`
### `PerlinNoiseMap`
A fast, bulk perlin noise generator.
It can be created via `PerlinNoiseMap(noiseparams, size)` or
`minetest.get_perlin_map(noiseparams, size)`.
-Format of `size` is `{x=dimx, y=dimy, z=dimz}`. The `z` conponent is ommitted
+Format of `size` is `{x=dimx, y=dimy, z=dimz}`. The `z` component is omitted
for 2D noise, and it must be must be larger than 1 for 3D noise (otherwise
`nil` is returned).
#### Methods
-* `get2dMap(pos)`: returns a `<size.x>` times `<size.y>` 2D array of 2D noise
+* `get_2d_map(pos)`: returns a `<size.x>` times `<size.y>` 2D array of 2D noise
with values starting at `pos={x=,y=}`
-* `get3dMap(pos)`: returns a `<size.x>` times `<size.y>` times `<size.z>` 3D array
+* `get_3d_map(pos)`: returns a `<size.x>` times `<size.y>` times `<size.z>` 3D array
of 3D noise with values starting at `pos={x=,y=,z=}`
-* `get2dMap_flat(pos, buffer)`: returns a flat `<size.x * size.y>` element array of 2D noise
+* `get_2d_map_flat(pos, buffer)`: returns a flat `<size.x * size.y>` element array of 2D noise
with values starting at `pos={x=,y=}`
-* `get3dMap_flat(pos, buffer)`: Same as `get2dMap_flat`, but 3D noise
-* `calc2dMap(pos)`: Calculates the 2d noise map starting at `pos`. The result is stored internally.
-* `calc3dMap(pos)`: Calculates the 3d noise map starting at `pos`. The result is stored internally.
-* `getMapSlice(slice_offset, slice_size, buffer)`: In the form of an array, returns a slice of the
+* `get_3d_map_flat(pos, buffer)`: Same as `get2dMap_flat`, but 3D noise
+* `calc_2d_map(pos)`: Calculates the 2d noise map starting at `pos`. The result is stored internally.
+* `calc_3d_map(pos)`: Calculates the 3d noise map starting at `pos`. The result is stored internally.
+* `get_map_slice(slice_offset, slice_size, buffer)`: In the form of an array, returns a slice of the
most recently computed noise results. The result slice begins at coordinates `slice_offset` and
takes a chunk of `slice_size`.
E.g. to grab a 2-slice high horizontal 2d plane of noise starting at buffer offset y = 20:
- `noisevals = noise:getMapSlice({y=20}, {y=2})`
+ `noisevals = noise:get_map_slice({y=20}, {y=2})`
It is important to note that `slice_offset` offset coordinates begin at 1, and are relative to
the starting position of the most recently calculated noise.
To grab a single vertical column of noise starting at map coordinates x = 1023, y=1000, z = 1000:
- `noise:calc3dMap({x=1000, y=1000, z=1000})`
- `noisevals = noise:getMapSlice({x=24, z=1}, {x=1, z=1})`
+ `noise:calc_3d_map({x=1000, y=1000, z=1000})`
+ `noisevals = noise:get_map_slice({x=24, z=1}, {x=1, z=1})`
### `VoxelManip`
#### Methods
* `get(key)`: returns a value
-* `get_bool(key)`: returns a boolean
+* `get_bool(key, [default])`: returns a boolean
+ * `default` is the value returned if `key` is not found.
+ * Returns `nil` if `key` is not found and `default` not specified.
+* `get_np_group(key)`: returns a NoiseParams table
* `set(key, value)`
* Setting names can't contain whitespace or any of `="{}#`.
* Setting values can't contain the sequence `\n"""`.
* Setting names starting with "secure." can't be set on the main settings object (`minetest.settings`).
* `set_bool(key, value)`
* See documentation for set() above.
+* `set_np_group(key, value)`
+ * `value` is a NoiseParams table.
+ * Also, see documentation for set() above.
* `remove(key)`: returns a boolean (`true` for success)
* `get_names()`: returns `{key1,...}`
* `write()`: returns a boolean (`true` for success)
It can be created via `Raycast(pos1, pos2, objects, liquids)` or
`minetest.raycast(pos1, pos2, objects, liquids)` where:
- * `pos1`: start of the ray
- * `pos2`: end of the ray
- * `objects` : if false, only nodes will be returned. Default is true.
- * `liquids' : if false, liquid nodes won't be returned. Default is false.
+* `pos1`: start of the ray
+* `pos2`: end of the ray
+* `objects` : if false, only nodes will be returned. Default is true.
+* `liquids' : if false, liquid nodes won't be returned. Default is false.
#### Methods
* `next()`: returns a `pointed_thing`
* Called when somebody punches the object.
* Note that you probably want to handle most punches using the
automatic armor group system.
- * `puncher`: an `ObjectRef` (can be `nil`)
- * `time_from_last_punch`: Meant for disallowing spamming of clicks (can be `nil`)
- * `tool_capabilities`: capability table of used tool (can be `nil`)
- * `dir`: unit vector of direction of punch. Always defined. Points from
- the puncher to the punched.
- `on_death(self, killer)`
+ * `puncher`: an `ObjectRef` (can be `nil`)
+ * `time_from_last_punch`: Meant for disallowing spamming of clicks (can be `nil`)
+ * `tool_capabilities`: capability table of used tool (can be `nil`)
+ * `dir`: unit vector of direction of punch. Always defined. Points from
+ the puncher to the punched.
+ * `on_death(self, killer)`
* Called when the object dies.
- * `killer`: an `ObjectRef` (can be `nil`)
+ * `killer`: an `ObjectRef` (can be `nil`)
* `on_rightclick(self, clicker)`
* `get_staticdata(self)`
* Should return a string that will be passed to `on_activate` when
-- ^ For players: Defaults to `minetest.PLAYER_MAX_HP_DEFAULT`
breath_max = 0,
-- ^ For players only. Defaults to `minetest.PLAYER_MAX_BREATH_DEFAULT`
- can_zoom = true,
- -- ^ For players only. Enables the zoom feature. Defaults to true
+ zoom_fov = 0.0,
+ -- ^ For players only. Zoom FOV in degrees.
+ -- Note that zoom loads and/or generates world beyond the server's maximum
+ -- send and generate distances, so acts like a telescope.
+ -- Smaller zoomFOV values increase the distance loaded and/or generated.
+ -- Defaults to 15 in creative mode, 0 in survival mode.
+ -- zoom_fov = 0 disables zooming for the player.
+ eye_height = 1.625,
+ -- ^ For players only. Camera height above feet position in nodes. Defaults to 1.625
physical = true,
collide_with_objects = true, -- collide with other objects if physical = true
weight = 5,
collisionbox = {-0.5, 0.0, -0.5, 0.5, 1.0, 0.5},
selectionbox = {-0.5, 0.0, -0.5, 0.5, 1.0, 0.5},
- -- ^ Default, uses collision box dimensions when not set
+ -- ^ Default, uses collision box dimensions when not set.
+ -- ^ For both boxes: {xmin, ymin, zmin, xmax, ymax, zmax} in nodes from
+ -- object position.
pointable = true, -- overrides selection box when false
visual = "cube" / "sprite" / "upright_sprite" / "mesh" / "wielditem",
+ -- ^ "cube" is a node-sized cube.
+ -- ^ "sprite" is a flat texture always facing the player.
+ -- ^ "upright_sprite" is a vertical flat texture.
+ -- ^ "mesh" uses the defined mesh model.
+ -- ^ "wielditem" is used for dropped items (see builtin/game/item_entity.lua).
+ -- For this use 'textures = {itemname}'.
+ -- If the item has a 'wield_image' the object will be an extrusion of that,
+ -- otherwise:
+ -- If 'itemname' is a cubic node or nodebox the object will appear identical
+ -- to 'itemname'.
+ -- If 'itemname' is a plantlike node the object will be an extrusion of its
+ -- texture.
+ -- Otherwise for non-node items, the object will be an extrusion of
+ -- 'inventory_image'.
visual_size = {x = 1, y = 1},
+ -- ^ `x` multiplies horizontal (X and Z) visual size.
+ -- ^ `y` multiplies vertical (Y) visual size.
mesh = "model",
textures = {}, -- number of required textures depends on visual
+ -- ^ "cube" uses 6 textures in the way a node does.
+ -- ^ "sprite" uses 1 texture.
+ -- ^ "upright_sprite" uses 2 textures: {front, back}.
+ -- ^ "wielditem" expects 'textures = {itemname}' (see 'visual' above).
colors = {}, -- number of required colors depends on visual
spritediv = {x = 1, y = 1},
+ -- ^ Used with spritesheet textures for animation and/or frame selection according
+ -- to position relative to player.
+ -- ^ Defines the number of columns and rows in the spritesheet: {columns, rows}.
initial_sprite_basepos = {x = 0, y = 0},
+ -- ^ Used with spritesheet textures.
+ -- ^ Defines the {column, row} position of the initially used frame in the
+ -- spritesheet.
is_visible = true,
makes_footstep_sound = false,
- automatic_rotate = false,
+ automatic_rotate = 0,
+ -- ^ Set constant rotation in radians per second, positive or negative.
+ -- ^ Set to 0 to disable constant rotation.
stepheight = 0,
automatic_face_movement_dir = 0.0,
-- ^ Automatically set yaw to movement direction, offset in degrees,
backface_culling = true, -- false to disable backface_culling for model
glow = 0,
-- ^ Add this much extra lighting when calculating texture color.
- value < 0 disables light's effect on texture color.
- For faking self-lighting, UI style entities, or programmatic coloring in mods.
+ -- Value < 0 disables light's effect on texture color.
+ -- For faking self-lighting, UI style entities, or programmatic coloring in mods.
nametag = "", -- by default empty, for players their name is shown if empty
nametag_color = <color>, -- sets color of nametag as ColorSpec
infotext = "", -- by default empty, text to be shown when pointed at object
static_save = true,
- -- ^ If false, never save this object statically. It will simply be deleted when the block gets unloaded.
- -- ^ The get_staticdata() callback is never called then.
- -- ^ Defaults to 'true'
+ -- ^ If false, never save this object statically. It will simply be deleted when the
+ -- block gets unloaded.
+ -- The get_staticdata() callback is never called then.
+ -- Defaults to 'true'
}
### Entity definition (`register_entity`)
{
label = "Lava cooling",
- -- ^ Descriptive label for profiling purposes (optional).
- -- Definitions with identical labels will be listed as one.
- -- In the following two fields, also group:groupname will work.
+ ^ Descriptive label for profiling purposes (optional).
+ Definitions with identical labels will be listed as one.
nodenames = {"default:lava_source"},
- neighbors = {"default:water_source", "default:water_flowing"}, -- Any of these --[[
- ^ If left out or empty, any neighbor will do ]]
- interval = 1.0, -- Operation interval in seconds
- chance = 1, -- Chance of trigger per-node per-interval is 1.0 / this
- catch_up = true, -- If true, catch-up behaviour is enabled --[[
- ^ The chance value is temporarily reduced when returning to
- an area to simulate time lost by the area being unattended.
- ^ Note chance value can often be reduced to 1 ]]
- action = func(pos, node, active_object_count, active_object_count_wider),
+ ^ Apply `action` function to these nodes.
+ ^ `group:groupname` can also be used here.
+ neighbors = {"default:water_source", "default:water_flowing"},
+ ^ Only apply `action` to nodes that have one of, or any
+ combination of, these neighbors.
+ ^ If left out or empty, any neighbor will do.
+ ^ `group:groupname` can also be used here.
+ interval = 1.0,
+ ^ Operation interval in seconds.
+ chance = 1,
+ ^ Chance of triggering `action` per-node per-interval is 1.0 / this value.
+ catch_up = true,
+ ^ If true, catch-up behaviour is enabled: The `chance` value is temporarily
+ reduced when returning to an area to simulate time lost by the area being
+ unattended. Note that the `chance` value can often be reduced to 1.
+ action = function(pos, node, active_object_count, active_object_count_wider),
+ ^ Function triggered for each qualifying node.
+ ^ `active_object_count` is number of active objects in the node's mapblock.
+ ^ `active_object_count_wider` is number of active objects in the node's
+ mapblock plus all 26 neighboring mapblocks. If any neighboring mapblocks
+ are unloaded an estmate is calculated for them based on loaded mapblocks.
}
### LBM (LoadingBlockModifier) definition (`register_lbm`)
^ default: nil
^ Function must return either nil if no item shall be removed from
inventory, or an itemstack to replace the original itemstack.
- e.g. itemstack:take_item(); return 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.
tileable_horizontal=bool, align_style="node"/"world"/"user", scale=int}`
* backface culling enabled by default for most nodes
* tileable flags are info for shaders, how they should treat texture
- when displacement mapping is used
- Directions are from the point of view of the tile texture,
- not the node it's on
+ when displacement mapping is used
+ Directions are from the point of view of the tile texture,
+ not the node it's on
* align style determines whether the texture will be rotated with the node
- or kept aligned with its surroundings. "user" means that client
- setting will be used, similar to `glasslike_framed_optional`.
- Note: supported by solid nodes and nodeboxes only.
+ or kept aligned with its surroundings. "user" means that client
+ setting will be used, similar to `glasslike_framed_optional`.
+ Note: supported by solid nodes and nodeboxes only.
* scale is used to make texture span several (exactly `scale`) nodes,
- instead of just one, in each direction. Works for world-aligned
- textures only.
- Note that as the effect is applied on per-mapblock basis, `16` should
- be equally divisible by `scale` or you may get wrong results.
+ instead of just one, in each direction. Works for world-aligned
+ textures only.
+ Note that as the effect is applied on per-mapblock basis, `16` should
+ be equally divisible by `scale` or you may get wrong results.
* `{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.
### Tile animation definition
- {
- 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
- }
+ {
+ 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`)
^ interval. Default: nil.
^ Warning: making a liquid node 'floodable' does not work and may cause problems. ]]
+ preserve_metadata = func(pos, oldnode, oldmeta, drops) --[[
+ ^ Called when oldnode is about be converted to an item, but before the
+ node is deleted from the world or the drops are added. This is generally
+ the result of either the node being dug or an attached node becoming detached.
+ ^ drops is a table of ItemStacks, so any metadata to be preserved can be
+ added directly to one or more of the dropped items. See "ItemStackMetaRef".
+ ^ default: nil ]]
after_place_node = func(pos, placer, itemstack, pointed_thing) --[[
^ Called after constructing node when node was placed using
minetest.item_place_node / minetest.place_node
^ If return true no item is taken from itemstack
+ ^ `placer` may be any valid ObjectRef or nil
^ default: nil ]]
after_dig_node = func(pos, oldnode, oldmetadata, digger), --[[
^ oldmetadata is in table format
### Ore definition (`register_ore`)
+ See 'Ore types' section above for essential information.
+
{
- ore_type = "scatter", -- See "Ore types"
+ ore_type = "scatter",
ore = "default:stone_with_coal",
ore_param2 = 3,
-- ^ Facedir rotation. Default is 0 (unchanged rotation)
wherein = "default:stone",
-- ^ a list of nodenames is supported too
- clust_scarcity = 8*8*8,
+ clust_scarcity = 8 * 8 * 8,
-- ^ Ore has a 1 out of clust_scarcity chance of spawning in a node
- -- ^ This value should be *MUCH* higher than your intuition might tell you!
+ -- ^ If the desired average distance between ores is 'd', set this to d * d * d.
clust_num_ores = 8,
-- ^ Number of ores in a cluster
clust_size = 3,
-- ^ Size of the bounding box of the cluster
- -- ^ In this example, there is a 3x3x3 cluster where 8 out of the 27 nodes
+ -- ^ In this example, there is a 3 * 3 * 3 cluster where 8 out of the 27 nodes
-- ^ are coal ore.
y_min = -31000,
y_max = 64,
-- ^ Lower and upper limits for ore.
flags = "",
- -- ^ Attributes for this ore generation
+ -- ^ Attributes for this ore generation, see 'Ore attributes' section above.
noise_threshold = 0.5,
-- ^ If noise is above this threshold, ore is placed. Not needed for a
-- ^ uniform distribution.
},
-- ^ NoiseParams structure describing one of the perlin noises used for ore
-- ^ distribution.
+ -- ^ Needed by "sheet", "puff", "blob" and "vein" ores.
-- ^ Omit from "scatter" ore for a uniform ore distribution.
-- ^ Omit from "stratum ore for a simple horizontal strata from y_min to y_max.
- random_factor = 1.0,
- -- ^ Multiplier of the randomness contribution to the noise value at any
- -- ^ given point to decide if ore should be placed. Set to 0 for solid veins.
- -- ^ This parameter is only valid for ore_type == "vein".
biomes = {"desert", "rainforest"}
-- ^ List of biomes in which this decoration occurs.
-- ^ Occurs in all biomes if this is omitted, and ignored if the Mapgen being
-- ^ used does not support biomes.
-- ^ Can be a list of (or a single) biome names, IDs, or definitions.
+ column_height_min = 1,
+ column_height_max = 16,
+ column_midpoint_factor = 0.5,
+ -- ^ See 'Ore types' section above.
+ -- ^ The above 3 parameters are only valid for "sheet" ore.
+ np_puff_top = {
+ offset = 4,
+ scale = 2,
+ spread = {x = 100, y = 100, z = 100},
+ seed = 47,
+ octaves = 3,
+ persist = 0.7
+ },
+ np_puff_bottom = {
+ offset = 4,
+ scale = 2,
+ spread = {x = 100, y = 100, z = 100},
+ seed = 11,
+ octaves = 3,
+ persist = 0.7
+ },
+ -- ^ See 'Ore types' section above.
+ -- ^ The above 2 parameters are only valid for "puff" ore.
+ random_factor = 1.0,
+ -- ^ See 'Ore types' section above.
+ -- ^ Only valid for "vein" ore.
+ np_stratum_thickness = {
+ offset = 8,
+ scale = 4,
+ spread = {x = 100, y = 100, z = 100},
+ seed = 17,
+ octaves = 3,
+ persist = 0.7
+ },
+ stratum_thickness = 8,
+ -- ^ See 'Ore types' section above.
+ -- ^ The above 2 parameters are only valid for "stratum" ore.
}
### Biome definition (`register_biome`)
y_min = 1,
y_max = 31000,
-- ^ Lower and upper limits for biome.
+ vertical_blend = 8,
+ -- ^ Vertical distance in nodes above 'y_max' over which the biome will
+ -- ^ blend with the biome above.
+ -- ^ Set to 0 for no vertical blend. Defaults to 0.
heat_point = 0,
humidity_point = 50,
- -- ^ Characteristic average temperature and humidity for the biome.
- -- ^ These values create 'biome points' on a voronoi diagram that has heat
- -- ^ and humidity as axes. The resulting voronoi cells determine which
- -- ^ heat/humidity points belong to which biome, and therefore determine
- -- ^ the area and location of each biome in the world.
- -- ^ The biome points need to be carefully and evenly spaced on the voronoi
- -- ^ diagram to result in roughly equal size biomes.
+ -- ^ Characteristic temperature and humidity for the biome.
+ -- ^ These values create 'biome points' on a voronoi diagram with heat and
+ -- ^ humidity as axes. The resulting voronoi cells determine the
+ -- ^ distribution of the biomes.
-- ^ Heat and humidity have average values of 50, vary mostly between
- -- ^ 0 and 100 but also often exceed these values.
- -- ^ Heat is not in degrees celcius, both values are abstract.
+ -- ^ 0 and 100 but can exceed these values.
}
### Decoration definition (`register_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.
- flags = "liquid_surface, force_placement",
+ flags = "liquid_surface, force_placement, all_floors, all_ceilings",
-- ^ Flags for all decoration types.
- -- ^ "liquid_surface": Instead of placement on the highest solid surface in
- -- ^ a mapchunk column, placement is on the highest liquid surface. Placement
- -- ^ is disabled if solid nodes are found above the liquid surface.
- -- ^ "force_placement": Nodes other than "air" and "ignore" are replaced by the decoration.
+ -- ^ "liquid_surface": Instead of placement on the highest solid surface
+ -- ^ in a mapchunk column, placement is on the highest liquid surface.
+ -- ^ Placement is disabled if solid nodes are found above the liquid
+ -- ^ surface.
+ -- ^ "force_placement": Nodes other than "air" and "ignore" are replaced
+ -- ^ by the decoration.
+ -- ^ "all_floors", "all_ceilings": Instead of placement on the highest
+ -- ^ surface in a mapchunk the decoration is placed on all floor and/or
+ -- ^ ceiling surfaces, for example in caves.
+ -- ^ Ceiling decorations act as an inversion of floor decorations so the
+ -- ^ effect of 'place_offset_y' is inverted.
+ -- ^ If a single decoration registration has both flags the floor and
+ -- ^ ceiling decorations will be aligned vertically and may sometimes
+ -- ^ meet to form a column.
----- Simple-type parameters
decoration = "default:grass",
-- ^ Upper limit of the randomly selected param2.
-- ^ If absent, the parameter 'param2' is used as a constant.
place_offset_y = 0,
- -- ^ Y offset of the decoration base node relative to the standard
- -- ^ base node position for simple decorations.
+ -- ^ Y offset of the decoration base node relative to the standard base
+ -- ^ node position.
-- ^ Can be positive or negative. Default is 0.
+ -- ^ Effect is inverted for "all_ceilings" decorations.
-- ^ Ignored by 'y_min', 'y_max' and 'spawn_by' checks, which always refer
-- ^ to the 'place_on' node.
rotation = "90" -- rotate schematic 90 degrees on placement
-- ^ Rotation can be "0", "90", "180", "270", or "random".
place_offset_y = 0,
+ -- ^ If the flag 'place_center_y' is set this parameter is ignored.
-- ^ Y offset of the schematic base node layer relative to the 'place_on'
-- ^ node.
-- ^ Can be positive or negative. Default is 0.
- -- ^ If the flag 'place_center_y' is set this parameter is ignored.
- -- ^ If absent or 0 the schematic base node layer will be placed level
- -- ^ with the 'place_on' node.
+ -- ^ Effect is inverted for "all_ceilings" decorations.
+ -- ^ Ignored by 'y_min', 'y_max' and 'spawn_by' checks, which always refer
+ -- ^ to the 'place_on' node.
}
### Chat command definition (`register_chatcommand`)
-- Returns boolean success and text output.
}
+Note that in params, use of symbols is as follows:
+
+* `<>` signifies a placeholder to be replaced when the command is used. For example,
+ when a player name is needed: `<name>`
+* `[]` signifies param is optional and not required when the command is used. For
+ example, if you require param1 but param2 is optional: `<param1> [<param2>]`
+* `|` signifies exclusive or. The command requires one param from the options
+ provided. For example: `<param1> | <param2>`
+* `()` signifies grouping. For example, when param1 and param2 are both required,
+ or only param3 is required: `(<param1> <param2>) | <param3>`
+
### Detached inventory callbacks
{
-- ^ Uses texture (string)
playername = "singleplayer"
-- ^ Playername is 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
}
### `HTTPRequest` definition (`HTTPApiTable.fetch_async`, `HTTPApiTable.fetch_async`)
completed = true,
-- ^ If true, the request has finished (either succeeded, failed or timed out)
succeeded = true,
- -- ^ If true, the request was succesful
+ -- ^ If true, the request was successful
timeout = false,
-- ^ If true, the request timed out
code = 200,
-- ^ HTTP status code
data = "response"
}
+
+### Authentication handler definition
+
+ {
+ get_auth = func(name),
+ -- ^ Get authentication data for existing player `name` (`nil` if player doesn't exist)
+ -- ^ returns following structure `{password=<string>, privileges=<table>, last_login=<number or nil>}`
+ create_auth = func(name, password),
+ -- ^ Create new auth data for player `name`
+ -- ^ Note that `password` is not plain-text but an arbitrary representation decided by the engine
+ delete_auth = func(name),
+ -- ^ Delete auth data of player `name`, returns boolean indicating success (false if player nonexistant)
+ set_password = func(name, password),
+ -- ^ Set password of player `name` to `password`
+ Auth data should be created if not present
+ set_privileges = func(name, privileges),
+ -- ^ Set privileges of player `name`
+ -- ^ `privileges` is in table form, auth data should be created if not present
+ reload = func(),
+ -- ^ Reload authentication data from the storage location
+ -- ^ Returns boolean indicating success
+ record_login = func(name),
+ -- ^ Called when player joins, used for keeping track of last_login
+ iterate = func(),
+ -- ^ Returns an iterator (use with `for` loops) for all player names currently in the auth database
+ }
+
projects / minetest.git / blobdiff