-Minetest Lua Modding API Reference 0.4.12
+Minetest Lua Modding API Reference 0.4.13
=========================================
* More information at <http://www.minetest.net/>
* Developer Wiki: <http://dev.minetest.net/>
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.
+
+### 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.
+
Mod load path
-------------
| |-- depends.txt
| |-- screenshot.png
| |-- description.txt
+ | |-- settingtypes.txt
| |-- init.lua
| |-- models
| |-- textures
### `description.txt`
A File containing description to be shown within mainmenu.
+### `settingtypes.txt`
+A file in the same format as the one in builtin. It will be parsed by the
+settings menu and the settings will be displayed in the "Mods" category.
+
### `init.lua`
The main Lua script. Running this script should register everything it
wants to register. Subsequent execution depends on minetest calling the
default_cobble.png^[crack:10:1
-#### `[combine:<w>x<h>:<x1>,<y1>=<file1>:<x2>,<y2>=<file2>`
+#### `[combine:<w>x<h>:<x1>,<y1>=<file1>:<x2>,<y2>=<file2>:...`
* `<w>` = width
* `<h>` = height
-* `<x1>`/`<x2>` = x positions
-* `<y1>`/`<y1>` = y positions
-* `<file1>`/`<file2>` = textures to combine
+* `<x>` = x position
+* `<y>` = y position
+* `<file>` = texture to combine
-Create a texture of size `<w>` times `<h>` and blit `<file1>` to (`<x1>`,`<y1>`)
-and blit `<file2>` to (`<x2>`,`<y2>`).
+Creates a texture of size `<w>` times `<h>` and blits the listed files to their
+specified coordinates.
Example:
#### `[colorize:<color>:<ratio>`
Colorize the textures with the given color.
`<color>` is specified as a `ColorString`.
-`<ratio>` is an int ranging from 0 to 255, and specifies how much of the
-color to apply. If ommitted, the alpha will be used.
+`<ratio>` is an int ranging from 0 to 255 or the word "`alpha`". If
+it is an int, then it specifies how far to interpolate between the
+colors where 0 is only the texture color and 255 is only `<color>`. If
+omitted, the alpha of `<color>` will be used as the ratio. If it is
+the word "`alpha`", then each texture pixel will contain the RGB of
+`<color>` and the alpha of `<color>` multiplied by the alpha of the
+texture pixel.
Sounds
------
{
pos = {x=1,y=2,z=3},
gain = 1.0, -- default
- max_hear_distance = 32, -- default
+ max_hear_distance = 32, -- default, uses an euclidean metric
}
-- Play connected to an object, looped
{
object = <an ObjectRef>,
gain = 1.0, -- default
- max_hear_distance = 32, -- default
+ max_hear_distance = 32, -- default, uses an euclidean metric
loop = true, -- only sounds connected to objects can be looped
}
0 = y+ 1 = z+ 2 = z- 3 = x+ 4 = x- 5 = y-
facedir's two less significant bits are rotation around the axis
paramtype2 == "leveled"
+ paramtype2 == "degrotate"
+ ^ 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.
collision_box = {
type = "fixed",
fixed = {
wall_bottom = box,
wall_side = box
}
+ {
+ -- A node that has optional boxes depending on neighbouring nodes'
+ -- presence and type. See also `connects_to`.
+ type = "connected",
+ fixed = box OR {box1, box2, ...}
+ connect_top = box OR {box1, box2, ...}
+ connect_bottom = box OR {box1, box2, ...}
+ connect_front = box OR {box1, box2, ...}
+ connect_left = box OR {box1, box2, ...}
+ connect_back = box OR {box1, box2, ...}
+ connect_right = box OR {box1, box2, ...}
+ }
A `box` is defined as:
### `sheet`
Creates a sheet of ore in a blob shape according to the 2D perlin noise
-described by `noise_params`. The relative height of the sheet can be
-controlled by the same perlin noise as well, by specifying a non-zero
-`scale` parameter in `noise_params`.
+described by `noise_params` and `noise_threshold`. This is essentially an
+improved version of the so-called "stratus" ore seen in some unofficial mods.
+
+This sheet consists of vertical columns of uniform randomly distributed height,
+varying between the inclusive range `column_height_min` and `column_height_max`.
+If `column_height_min` is not specified, this parameter defaults to 1.
+If `column_height_max` is not specified, this parameter defaults to `clust_size`
+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,
+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.
+
+The ore parameters `clust_scarcity` and `clust_num_ores` are ignored for this ore type.
-**IMPORTANT**: The noise is not transformed by `offset` or `scale` when comparing
-against the noise threshold, but scale is used to determine relative height.
-The height of the blob is randomly scattered, with a maximum height of `clust_size`.
+### `puff`
+Creates a sheet of ore in a cloud-like puff shape.
-`clust_scarcity` and `clust_num_ores` are ignored.
+As with the `sheet` ore type, the size and shape of puffs are described by
+`noise_params` and `noise_threshold` and are placed at random vertical positions
+within the currently generated chunk.
+
+The vertical top and bottom displacement of each puff are determined by the noise
+parameters `np_puff_top` and `np_puff_bottom`, respectively.
-This is essentially an improved version of the so-called "stratus" ore seen in
-some unofficial mods.
### `blob`
Creates a deformed sphere of ore according to 3d perlin noise described by
`noise_params`. The maximum size of the blob is `clust_size`, and
`clust_scarcity` has the same meaning as with the `scatter` type.
-### `vein
+
+### `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
`noise_params`. `random_factor` varies the influence random chance has on
placement of an ore inside the vein, which is `1` by default. Note that
-modifying this parameter may require adjusting `noise_threshhold`.
+modifying this parameter may require adjusting `noise_threshold`.
The parameters `clust_scarcity`, `clust_num_ores`, and `clust_size` are ignored
by this ore type. 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:
persist = 0.5,
flags = "eased",
},
- noise_threshhold = 1.6
+ noise_threshold = 1.6
WARNING: Use this ore type *very* sparingly since it is ~200x more
computationally expensive than any other ore.
Useful for having ore in sky realms without having to duplicate ore entries.
+### `puff_cliffs`
+If set, puff ore generation will not taper down large differences in displacement
+when approaching the edge of a puff. This flag has no effect for ore types other
+than `puff`.
+
+### `puff_additive_composition`
+By default, when noise described by `np_puff_top` or `np_puff_bottom` results in a
+negative displacement, the sub-column at that point is not generated. With this
+attribute set, puff ore generation will instead generate the absolute difference in
+noise displacement values. This flag has no effect for ore types other than `puff`.
+
Decoration types
----------------
The varying types of decorations that can be placed.
-The default value is `simple`, and is currently the only type supported.
-
### `simple`
Creates a 1 times `H` times 1 column of a specified node (or a random node from
a list, if a decoration list is specified). Can specify a certain node it must
spawn next to, such as water or lava, for example. Can also generate a
decoration of random height between a specified lower and upper bound.
This type of decoration is intended for placement of grass, flowers, cacti,
-papyri, and so on.
+papyri, waterlilies and so on.
### `schematic`
Copies a box of `MapNodes` from a specified schematic file (or raw description).
--------------------
See section "Flag Specifier Format".
-Currently supported flags: `place_center_x`, `place_center_y`,
- `place_center_z`, `force_placement`.
+Currently supported flags: `place_center_x`, `place_center_y`, `place_center_z`,
+ `force_placement`.
* `place_center_x`: Placement of this decoration is centered along the X axis.
* `place_center_y`: Placement of this decoration is centered along the Y axis.
node. It is called "node metadata"; See "`NodeMetaRef`".
Metadata contains two things:
+
* A key-value store
* An inventory
Some of the values in the key-value store are handled specially:
+
* `formspec`: Defines a right-click inventory menu. See "Formspec".
* `infotext`: Text shown on the screen when the node is pointed at
#### `list[<inventory location>;<list name>;<X>,<Y>;<W>,<H>;<starting item index>]`
* Show an inventory list
+#### `listring[<inventory location>;<list name>]`
+* Allows to create a ring of inventory lists
+* Shift-clicking on items in one element of the ring
+* will send them to the next inventory list inside the ring
+* The first occurrence of an element inside the ring will
+* determine the inventory where items will be sent to
+
+#### `listring[]`
+* Shorthand for doing `listring[<inventory location>;<list name>]`
+* for the last two inventory lists added by list[...]
+
#### `listcolors[<slot_bg_normal>;<slot_bg_hover>]`
* Sets background color of slots as `ColorString`
* Sets background color of slots on mouse hovering
* 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
- * `colo`: 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:
(e.g. `colorname#08`). For named colors the hexadecimal string representing the alpha
value must (always) be two hexadecimal digits.
-Vector helpers
---------------
-
-* `vector.new([x[, y, z]])`: returns a vector.
- * `x` is a table or the `x` position.
-
+`ColorSpec`
+-----------
+A ColorSpec specifies a 32-bit color. It can be written in either:
+table form, each element ranging from 0..255 (a, if absent, defaults to 255):
+ `colorspec = {a=255, r=0, g=255, b=0}`
+numerical form, the raw integer value of an ARGB8 quad:
+ `colorspec = 0xFF00FF00`
+or string form, a ColorString (defined above):
+ `colorspec = "green"`
+
+Spatial Vectors
+---------------
+* `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.round(v)`: returns a vector
+* `vector.round(v)`: returns a vector, each dimension rounded to floor
* `vector.apply(v, func)`: returns a vector
* `vector.equals(v1, v2)`: returns a boolean
* `vector.add(v, x)`: returns a vector
* `vector.subtract(v, x)`: returns a vector
-* `vector.multiply(v, x)`: returns a vector
-* `vector.divide(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={})`
* Return object serialized as a string, handles reference loops
* `dump(obj, dumped={})`
* e.g. `string:split("a,b", ",") == {"a","b"}`
* `string:trim()`
* e.g. `string.trim("\n \t\tfoo bar\t ") == "foo bar"`
-* `minetest.pos_to_string({x=X,y=Y,z=Z})`: returns `"(X,Y,Z)"`
+* `minetest.pos_to_string({x=X,y=Y,z=Z}, decimal_places))`: returns `"(X,Y,Z)"`
* Convert position to a printable string
+ Optional: 'decimal_places' will round the x, y and z of the pos to the given decimal place.
* `minetest.string_to_pos(string)`: returns a position
* Same but in reverse. Returns `nil` if the string can't be parsed to a position.
+* `minetest.string_to_area("(X1, Y1, Z1) (X2, Y2, Z2)")`: returns two positions
+ * Converts a string representing an area box into two positions
* `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
* `minetest.get_us_time()`
- * returns time with microsecond precision
+ * returns time with microsecond precision. May not return wall time.
* `table.copy(table)`: returns a table
* returns a deep copy of `table`
* Useful for storing custom data
* `minetest.is_singleplayer()`
* `minetest.features`
- * table containing API feature flags: `{foo=true, bar=true}`
+ * Table containing API feature flags: `{foo=true, bar=true}`
* `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(playername)`
- * table containing information about player peer.
-
-Example of `minetest.get_player_information` return value:
-
- {
- address = "127.0.0.1", -- IP address of client
- ip_version = 4, -- IPv4 / IPv6
- min_rtt = 0.01, -- minimum round trip time
- max_rtt = 0.2, -- maximum round trip time
- avg_rtt = 0.02, -- average round trip time
- min_jitter = 0.01, -- minimum packet time jitter
- max_jitter = 0.5, -- maximum packet time jitter
- avg_jitter = 0.03, -- average packet time jitter
- connection_uptime = 200, -- seconds since client connected
-
- -- following information is available on debug build only!!!
- -- DO NOT USE IN MODS
- --ser_vers = 26, -- serialization version used by client
- --prot_vers = 23, -- protocol version used by client
- --major = 0, -- major version number
- --minor = 4, -- minor version number
- --patch = 10, -- patch version number
- --vers_string = "0.4.9-git", -- full version string
- --state = "Active" -- current client state
- }
+* `minetest.get_player_information(player_name)`: returns a table containing
+ information about player. Example return value:
+ {
+ address = "127.0.0.1", -- IP address of client
+ ip_version = 4, -- IPv4 / IPv6
+ min_rtt = 0.01, -- minimum round trip time
+ max_rtt = 0.2, -- maximum round trip time
+ avg_rtt = 0.02, -- average round trip time
+ min_jitter = 0.01, -- minimum packet time jitter
+ max_jitter = 0.5, -- maximum packet time jitter
+ avg_jitter = 0.03, -- average packet time jitter
+ connection_uptime = 200, -- seconds since client connected
+
+ -- following information is available on debug build only!!!
+ -- DO NOT USE IN MODS
+ --ser_vers = 26, -- serialization version used by client
+ --prot_vers = 23, -- protocol version used by client
+ --major = 0, -- major version number
+ --minor = 4, -- minor version number
+ --patch = 10, -- patch version number
+ --vers_string = "0.4.9-git", -- full version string
+ --state = "Active" -- current client state
+ }
+* `minetest.mkdir(path)`: returns success.
+ * Creates a directory specified by `path`, creating parent directories
+ 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.
### Logging
-* `minetest.debug(line)`
- * Always printed to `stderr` and logfile (`print()` is redirected here)
-* `minetest.log(line)`
-* `minetest.log(loglevel, line)`
- * `loglevel` is one of `"error"`, `"action"`, `"info"`, `"verbose"`
+* `minetest.debug(...)`
+ * Equivalent to `minetest.log(table.concat({...}, "\t"))`
+* `minetest.log([level,] text)`
+ * `level` is one of `"none"`, `"error"`, `"warning"`, `"action"`,
+ `"info"`, or `"verbose"`. Default is `"none"`.
### Registration functions
Call these functions only at load time!
* `minetest.register_entity(name, prototype table)`
* `minetest.register_abm(abm definition)`
+* `minetest.register_lbm(lbm definition)`
* `minetest.register_node(name, node definition)`
* `minetest.register_tool(name, item definition)`
* `minetest.register_craftitem(name, item definition)`
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
+ * `hp_change`: the amount of change. Negative when it is damage.
+ * `modifier`: when true, the function should return the actual hp_change.
+ Note: modifiers only get a temporary hp_change that can be modified by later modifiers.
+ modifiers can return true as a second argument to stop the execution of further functions.
* `minetest.register_on_respawnplayer(func(ObjectRef))`
* Called when player is to be respawned
* Called _before_ repositioning of player occurs
* `dug_too_fast`
* `minetest.register_on_chat_message(func(name, message))`
* Called always when a player says something
+ * Return `true` to mark the message as handled, which means that it will not be sent to other players
* `minetest.register_on_player_receive_fields(func(player, formname, fields))`
* Called when a button is pressed in player's inventory form
* Newest functions are called first
* Should be called by the authentication handler if privileges changes.
* To report everybody, set `name=nil`.
* `minetest.get_password_hash(name, raw_password)`
- * Convert a name-password pair to a password hash that Minetest can use
+ * 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.
* `minetest.string_to_privs(str)`: returns `{priv1=true,...}`
* `minetest.privs_to_string(privs)`: returns `"priv1,priv2,..."`
* Convert between two privilege representations
* `minetest.set_player_privs(name, {priv1=true,...})`
* `minetest.get_player_privs(name) -> {priv1=true,...}`
* `minetest.auth_reload()`
-* `minetest.check_player_privs(name, {priv1=true,...})`: returns `bool, missing_privs`
- * A quickhand for checking privileges
+* `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
`minetest.set_player_password`, `minetest_set_player_privs`, `minetest_get_player_privs`
* `minetest.remove_node(pos)`
* Equivalent to `set_node(pos, "air")`
* `minetest.get_node(pos)`
- * Returns `{name="ignore", ...}` for unloaded area
+ * Returns the node at the given position as table in the format
+ `{name="node_name", param1=0, param2=0}`, returns `{name="ignore", param1=0, param2=0}`
+ for unloaded areas.
* `minetest.get_node_or_nil(pos)`
- * Returns `nil` for unloaded area
-* `minetest.get_node_light(pos, timeofday)` returns a number between `0` and `15` or `nil`
+ * Same as `get_node` but returns `nil` for unloaded areas.
+* `minetest.get_node_light(pos, timeofday)`
+ * Gets the light value at the given position. Note that the light value
+ "inside" the node at the given position is returned, so you usually want
+ to get the light value of a neighbor.
+ * `pos`: The position where to measure the light.
* `timeofday`: `nil` for current time, `0` for night, `0.5` for day
-
+ * Returns a number between `0` and `15` or `nil`
* `minetest.place_node(pos, node)`
* Place node with the same effects that a player would cause
* `minetest.dig_node(pos)`
* Returns `ObjectRef`, or `nil` if failed
* `minetest.get_player_by_name(name)`: Get an `ObjectRef` to a player
* `minetest.get_objects_inside_radius(pos, radius)`
+ * `radius`: using an euclidean metric
* `minetest.set_timeofday(val)`
* `val` is between `0` and `1`; `0` for midnight, `0.5` for midday
* `minetest.get_timeofday()`
* `minetest.get_gametime()`: returns the time, in seconds, since the world was created
+* `minetest.get_day_count()`: returns number days elapsed since world was created,
+ * accounting for time changes.
* `minetest.find_node_near(pos, radius, nodenames)`: returns pos or `nil`
+ * `radius`: using a maximum metric
* `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`
* `minetest.find_nodes_in_area(minp, maxp, nodenames)`: returns a list of positions
+ * returns as second value a table with the count of the individual nodes found
* `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`
* `minetest.find_nodes_in_area_under_air(minp, maxp, nodenames)`: returns a list of positions
* returned positions are nodes with a node air above
* `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_ids
* `minetest.get_mapgen_object(objectname)`
* Return requested mapgen object if available (see "Mapgen objects")
+* `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`.
* `minetest.set_mapgen_params(MapgenParams)`
* 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`.
* `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`.
* `pos1` and `pos2` are optional and default to mapchunk minp and maxp.
-* `minetest.clear_objects()`
- * clear all objects in the environments
+* `minetest.clear_objects([options])`
+ * Clear all objects in the environment
+ * Takes an optional table as an argument with the field `mode`.
+ * mode = `"full"`: Load and go through every mapblock, clearing objects (default).
+ * mode = `"quick"`: Clear objects immediately in loaded mapblocks;
+ 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.
+ * 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:
+ * `core.EMERGE_CANCELLED`, `core.EMERGE_ERRORED`, `core.EMERGE_FROM_MEMORY`,
+ * `core.EMERGE_FROM_DISK`, `core.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`
* returns a table of 3D points representing a path from `pos1` to `pos2` or `nil`
* `pos1`: start position
* `pos2`: end position
- * `searchdistance`: number of blocks to search in each direction
+ * `searchdistance`: number of blocks to search in each direction using a maximum metric
* `max_jump`: maximum height difference to consider walkable
* `max_drop`: maximum height difference to consider droppable
* `algorithm`: One of `"A*_noprefetch"` (default), `"A*"`, `"Dijkstra"`
* Convert a facedir back into a vector aimed directly out the "back" of a node
* `minetest.dir_to_wallmounted(dir)`
* 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.get_node_drops(nodename, toolname)`
* Returns list of item names.
* **Note**: This will be removed or modified in a future version.
`{ stack1, stack2, stack3, stack4, stack 5, stack 6, stack 7, stack 8, stack 9 }`
* `output.item` = `ItemStack`, if unsuccessful: empty `ItemStack`
* `output.time` = a number, if unsuccessful: `0`
+ * `output.replacements` = list of `ItemStack`s that couldn't be placed in
+ `decremented_input.items`
* `decremented_input` = like `input`
* `minetest.get_craft_recipe(output)`: returns input
* returns last registered recipe for output item (node)
### Timing
* `minetest.after(time, func, ...)`
- * Call the function `func` after `time` seconds
+ * Call the function `func` after `time` seconds, may be fractional
* Optional: Variable number of arguments that are passed to `func`
### Server
-* `minetest.request_shutdown()`: request for server shutdown
+* `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
### Bans
* `minetest.add_particlespawner(particlespawner definition)`
* Add a `ParticleSpawner`, an object that spawns an amount of particles over `time` seconds
- * Returns an `id`
+ * Returns an `id`, and -1 if adding didn't succeed
* `Deprecated: minetest.add_particlespawner(amount, time,
minpos, maxpos,
minvel, maxvel,
* `replacements` = `{["old_name"] = "convert_to", ...}`
* `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.
+
+* `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
+ 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.
+ * Returns nil if the schematic could not be loaded.
+ * After execution, any external copies of the VoxelManip contents are invalidated.
* `minetest.serialize_schematic(schematic, format, options)`
* Return the serialized schematic specified by schematic (see: Schematic specifier)
* If `lua_num_indent_spaces` is a nonzero number and `format` is "lua", the Lua code generated
* will use that number of spaces as indentation instead of a tab character.
+### HTTP Requests:
+* `minetest.request_http_api()`:
+ * returns `HTTPApiTable` containing http functions if the calling mod has been granted
+ access by being listed in the `secure.http_mods` or `secure.trusted_mods` setting,
+ otherwise returns `nil`.
+ * The returned table contains the functions `fetch`, `fetch_async` and `fetch_async_get`
+ described below.
+ * Only works at init time and must be called from the mod's main scope (not from a function).
+ * Function only exists if minetest server was built with cURL support.
+ * **DO NOT ALLOW ANY OTHER MODS TO ACCESS THE RETURNED TABLE, STORE IT IN
+ A LOCAL VARIABLE!**
+* `HTTPApiTable.fetch(HTTPRequest req, callback)`
+ * Performs given request asynchronously and calls callback upon completion
+ * callback: `function(HTTPRequestResult res)`
+ * Use this HTTP function if you are unsure, the others are for advanced use.
+* `HTTPApiTable.fetch_async(HTTPRequest req)`: returns handle
+ * Performs given request asynchronously and returns handle for `minetest.http_fetch_async_get`
+* `HTTPApiTable.fetch_async_get(handle)`: returns HTTPRequestResult
+ * Return response data for given asynchronous HTTP request
+
### Misc.
* `minetest.get_connected_players()`: returns list of `ObjectRefs`
* `minetest.hash_node_position({x=,y=,z=})`: returns an 48-bit integer
* currently supported.
* `...` indicates method-specific arguments. Currently, no methods use this.
* `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 false or nil, if the player is allowed to do such actions.
* 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
the floor or ceiling
* The first four options are mutually-exclusive; the last in the list takes
precedence over the first.
-
-
-
* `minetest.rotate_node(itemstack, placer, pointed_thing)`
- * calls `rotate_and_place()` with infinitestacks set according to the state of
+ * 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.
* `minetest.forceload_block(pos)`
* forceloads the position `pos`.
* returns `true` if area could be forceloaded
+ * Please note that forceloaded areas are saved when the server restarts.
* `minetest.forceload_free_block(pos)`
* stops forceloading the position `pos`
-Please note that forceloaded areas are saved when the server restarts.
-minetest.global_exists(name)
-^ Checks if a global variable has been set, without triggering a warning.
+* `minetest.request_insecure_environment()`: returns an environment containing
+ insecure functions if the calling mod has been listed as trusted in the
+ `secure.trusted_mods` setting or security is disabled, otherwise returns `nil`.
+ * Only works at init time and must be called from the mod's main scope (not from a function).
+ * **DO NOT ALLOW ANY OTHER MODS TO ACCESS THE RETURNED ENVIRONMENT, STORE IT IN
+ A LOCAL VARIABLE!**
+
+* `minetest.global_exists(name)`
+ * Checks if a global variable has been set, without triggering a warning.
### 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)`
- * Deprecated, but support is not to be dropped soon
+ * Deprecated, but support is not to be dropped soon
### Global tables
* `minetest.registered_items`
* Map of Lua entities, indexed by active object id
* `minetest.registered_ores`
* List of registered ore definitions.
+* `minetest.registered_biomes`
+ * List of registered biome definitions.
* `minetest.registered_decorations`
* List of registered decoration definitions.
* `from_table(nil or {})`
* See "Node Metadata"
-### `NoteTimerRef`
+### `NodeTimerRef`
Node Timers: a high resolution persistent per-node timer.
Can be gotten via `minetest.get_node_timer(pos)`.
* `get_wielded_item()`: returns an `ItemStack`
* `set_wielded_item(item)`: replaces the wielded item, returns `true` if successful
* `set_armor_groups({group1=rating, group2=rating, ...})`
-* `set_animation({x=1,y=1}, frame_speed=15, frame_blend=0)`
+* `get_armor_groups()`: returns a table with the armor group ratings
+* `set_animation({x=1,y=1}, frame_speed=15, frame_blend=0, frame_loop=true)`
+* `get_animation()`: returns range, frame_speed, frame_blend and frame_loop
* `set_attach(parent, bone, position, rotation)`
* `bone`: string
* `position`: `{x=num, y=num, z=num}` (relative)
* `rotation`: `{x=num, y=num, z=num}`
+* `get_attach()`: returns parent, bone, position, rotation or nil if it isn't attached
* `set_detach()`
* `set_bone_position(bone, position, rotation)`
* `bone`: string
* `position`: `{x=num, y=num, z=num}` (relative)
* `rotation`: `{x=num, y=num, z=num}`
+* `get_bone_position(bone)`: returns position and rotation of the bone
* `set_properties(object property table)`
+* `get_properties()`: returns object property table
* `is_player()`: returns true for players, false otherwise
+* `get_nametag_attributes()`
+ * returns a table with the attributes of the nametag of an object
+ * {
+ color = {a=0..255, r=0..255, g=0..255, b=0..255},
+ text = "",
+ }
+* `set_nametag_attributes(attributes)`
+ * sets the attributes of the nametag of an object
+ * `attributes`:
+ {
+ color = ColorSpec,
+ text = "My Nametag",
+ }
##### LuaEntitySAO-only (no-op for other objects)
* `setvelocity({x=num, y=num, z=num})`
##### Player-only (no-op for other objects)
* `get_player_name()`: returns `""` if is not a player
+* `get_player_velocity()`: returns `nil` if is not a player otherwise a 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_pitch()`: pitch in radians
* `get_look_yaw()`: yaw in radians (wraps around pretty randomly as of now)
* `gravity`: multiplier to default gravity value (default: `1`)
* `sneak`: whether player can sneak (default: `true`)
* `sneak_glitch`: whether player can use the sneak glitch (default: `true`)
+* `get_physics_override()`: returns the table given to set_physics_override
* `hud_add(hud definition)`: add a HUD element described by HUD def, returns ID
number on success
* `hud_remove(id)`: remove the HUD element of the specified id
* element `stat` values: `position`, `name`, `scale`, `text`, `number`, `item`, `dir`
* `hud_get(id)`: gets the HUD element definition structure of the specified ID
* `hud_set_flags(flags)`: sets specified HUD flags to `true`/`false`
- * `flags`: (is visible) `hotbar`, `healthbar`, `crosshair`, `wielditem`
+ * `flags`: (is visible) `hotbar`, `healthbar`, `crosshair`, `wielditem`, `minimap`
* pass a table containing a `true`/`false` value of each flag to be set or unset
* if a flag equals `nil`, the flag is not modified
+ * note that setting `minimap` modifies the client's permission to view the minimap -
+ * the client may locally elect to not view the minimap
* `hud_get_flags()`: returns a table containing status of hud flags
- * returns `{ hotbar=true, healthbar=true, crosshair=true, wielditem=true, breathbar=true }`
+ * returns `{ hotbar=true, healthbar=true, crosshair=true, wielditem=true, breathbar=true, minimap=true }`
* `hud_set_hotbar_itemcount(count)`: sets number of items in builtin hotbar
* `count`: number of items, must be between `1` and `23`
+* `hud_get_hotbar_itemcount`: returns number of visible items
* `hud_set_hotbar_image(texturename)`
* sets background image for hotbar
+* `hud_get_hotbar_image`: returns texturename
* `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`: `{r=0...255, g=0...255, b=0...255}` or `nil`, defaults to white
+ * `bgcolor`: ColorSpec, defaults to white
* Available types:
* `"regular"`: Uses 0 textures, `bgcolor` ignored
* `"skybox"`: Uses 6 textures, `bgcolor` used
* `"plain"`: Uses 0 textures, `bgcolor` used
- * **Note**: currently does not work directly in `on_joinplayer`; use
- `minetest.after(0)` in there.
+* `get_sky()`: returns bgcolor, type and a table with the textures
* `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
-* `set_local_animation(walk, dig, walk+dig, frame_speed=frame_speed)`
+* `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
{x=189, y=198}, -- < dig animation key frames
{x=200, y=219}, -- < walk+dig animation key frames
frame_speed=30): -- < animation frame speed
-
+* `get_local_animation()`: returns stand, walk, dig, dig+walk tables and frame_speed
* `set_eye_offset({x=0,y=0,z=0},{x=0,y=0,z=0})`: defines offset value for camera per player
* in first person view
* in third person view (max. values `{x=-10/10,y=-10,15,z=-5/5}`)
-* `get_nametag_attributes()`
- * returns a table with the attributes of the nametag of the player
- * {
- color = { a = 0...255, r = 0...255, g = 0...255, b = 0...255 }
- }
-* `set_nametag_attributes(attributes)`
- * sets the attributes of the nametag of the player
- * `attributes`:
- {
- color = { a = 0...255, r = 0...255, g = 0...255, b = 0...255 }
- }
+* `get_eye_offset()`: returns offset_first and offset_third
### `InvRef`
An `InvRef` is a reference to an inventory.
* `get_location()`: returns a location compatible to `minetest.get_inventory(location)`
* returns `{type="undefined"}` in case location is not known
+### `AreaStore`
+A fast access data structure to store areas, and find areas near a given position or area.
+Every area has a `data` string attribute to store additional information.
+You can create an empty `AreaStore` by calling `AreaStore()`, or `AreaStore(type_name)`.
+If you chose the parameter-less constructor, a fast implementation will be automatically chosen for you.
+
+#### 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.
+* `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.
+* `get_areas_in_area(edge1, edge2, accept_overlap, include_borders, include_data)`: returns all areas that contain all nodes inside the area specified by `edge1` and `edge2` (inclusive). If `accept_overlap` is true, also areas are returned that have nodes in common with the specified area. (optional) Boolean values `include_borders` and `include_data` control what's copied.
+* `insert_area(edge1, edge2, data, [id])`: inserts an area into the store. Returns the new area's ID, or nil if the insertion failed. The (inclusive) positions `edge1` and `edge2` describe the area. `data` is a string stored with the area. If passed, `id` will be used as the internal area ID, it must be a unique number between 0 and 2^32-2. If you use the `id` parameter you must always use it, or insertions are likely to fail due to conflicts.
+* `reserve(count)`: reserves resources for at most `count` many contained areas. Only needed for efficiency, and only some implementations profit.
+* `remove_area(id)`: removes the area with the given id from the store, returns success.
+* `set_cache_params(params)`: sets params for the included prefiltering cache. Calling invalidates the cache, so that its elements have to be newly generated.
+ * `params`:
+ {
+ enabled = boolean, -- whether to enable, default true
+ block_radius = number, -- the radius (in nodes) of the areas the cache generates prefiltered lists for, minimum 16, default 64
+ limit = number, -- the cache's size, minimum 20, default 1000
+ }
+* `to_string()`: Experimental. Returns area store serialized as a (binary) string.
+* `to_file(filename)`: Experimental. Like `to_string()`, but writes the data to a file.
+* `from_string(str)`: Experimental. Deserializes string and loads it into the AreaStore. Returns success and, optionally, an error message.
+* `from_file(filename)`: Experimental. Like `from_string()`, but reads the data from a file.
+
### `ItemStack`
An `ItemStack` is a stack of items.
* This is only a rough approximation of a normal distribution with mean=(max-min)/2 and variance=1
* Increasing num_trials improves accuracy of the approximation
+### `SecureRandom`
+Interface for the operating system's crypto-secure PRNG.
+
+It can be created via `SecureRandom()`. The constructor returns nil if a secure random device cannot be
+be found on the system.
+
+#### Methods
+* `next_bytes([count])`: return next `count` (default 1, capped at 2048) many random bytes, as a string.
+
### `PerlinNoise`
A perlin noise generator.
It can be created via `PerlinNoise(seed, octaves, persistence, scale)`
for 2D noise, and it must be must be larger than 1 for 3D noise (otherwise
`nil` is returned).
+For each of the functions with an optional `buffer` parameter: If `buffer` is not
+nil, this table will be used to store the result instead of creating a new table.
+
+
#### Methods
* `get2dMap(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
of 3D noise with values starting at `pos={x=,y=,z=}`
-* `get2dMap_flat(pos)`: returns a flat `<size.x * size.y>` element array of 2D noise
+* `get2dMap_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)`: Same as `get2dMap_flat`, but 3D noise
+* `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
+ 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})`
+ 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})`
### `VoxelManip`
-An interface to the `MapVoxelManipulator` for Lua.
-It can be created via `VoxelManip()` or `minetest.get_voxel_manip()`.
-The map will be pre-loaded if two positions are passed to either.
+#### About VoxelManip
+VoxelManip is a scripting interface to the internal 'Map Voxel Manipulator' facility. The purpose of
+this object is for fast, low-level, bulk access to reading and writing Map content. As such, setting
+map nodes through VoxelManip will lack many of the higher level features and concepts you may be used
+to with other methods of setting nodes. For example, nodes will not have their construction and
+destruction callbacks run, and no rollback information is logged.
+
+It is important to note that VoxelManip is designed for speed, and *not* ease of use or flexibility.
+If your mod requires a map manipulation facility that will handle 100% of all edge cases, or the use
+of high level node placement features, perhaps minetest.set_node() is better suited for the job.
+
+In addition, VoxelManip might not be faster, or could even be slower, for your specific use case.
+VoxelManip is most effective when setting very large areas of map at once - for example, if only
+setting a 5x5x5 node area, a minetest.set_node() loop may be more optimal. Always profile code
+using both methods of map manipulation to determine which is most appropriate for your usage.
+
+#### Using VoxelManip
+A VoxelManip object can be created any time using either:
+`VoxelManip([p1, p2])`, or `minetest.get_voxel_manip([p1, p2])`.
+
+If the optional position parameters are present for either of these routines, the specified region
+will be pre-loaded into the VoxelManip object on creation. Otherwise, the area of map you wish to
+manipulate must first be loaded into the VoxelManip object using `VoxelManip:read_from_map()`.
+
+Note that `VoxelManip:read_from_map()` returns two position vectors. The region formed by these
+positions indicate the minimum and maximum (respectively) positions of the area actually loaded in
+the VoxelManip, which may be larger than the area requested. For convenience, the loaded area
+coordinates can also be queried any time after loading map data with `VoxelManip:get_emerged_area()`.
+
+Now that the VoxelManip object is populated with map data, your mod can fetch a copy of this data
+using either of two methods. `VoxelManip:get_node_at()`, which retrieves an individual node in a
+MapNode formatted table at the position requested is the simplest method to use, but also the slowest.
+
+Nodes in a VoxelManip object may also be read in bulk to a flat array table using:
+`VoxelManip:get_data()` for node content (in Content ID form, see section 'Content IDs'),
+`VoxelManip:get_light_data()` for node light levels, and
+`VoxelManip:get_param2_data()` for the node type-dependent "param2" values.
+
+See section 'Flat array format' for more details.
+
+It is very important to understand that the tables returned by any of the above three functions
+represent a snapshot of the VoxelManip's internal state at the time of the call. This copy of the
+data will *not* magically update itself if another function modifies the internal VoxelManip state.
+Any functions that modify a VoxelManip's contents work on the VoxelManip's internal state unless
+otherwise explicitly stated.
+
+Once the bulk data has been edited to your liking, the internal VoxelManip state can be set using:
+`VoxelManip:set_data()` for node content (in Content ID form, see section 'Content IDs'),
+`VoxelManip:set_light_data()` for node light levels, and
+`VoxelManip:set_param2_data()` for the node type-dependent "param2" values.
+
+The parameter to each of the above three functions can use any table at all in the same flat array
+format as produced by get_data() et al. and is *not required* to be a table retrieved from get_data().
+
+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
+ `Nx = p2.X - p1.X + 1`,
+ `Ny = p2.Y - p1.Y + 1`, and
+ `Nz = p2.Z - p1.Z + 1`.
+
+Then, for a loaded region of p1..p2, this array ranges from `1` up to and including the value of
+the expression `Nx * Ny * Nz`.
+
+Positions offset from p1 are present in the array with the format of:
+```
+[
+ (0, 0, 0), (1, 0, 0), (2, 0, 0), ... (Nx, 0, 0),
+ (0, 1, 0), (1, 1, 0), (2, 1, 0), ... (Nx, 1, 0),
+ ...
+ (0, Ny, 0), (1, Ny, 0), (2, Ny, 0), ... (Nx, Ny, 0),
+ (0, 0, 1), (1, 0, 1), (2, 0, 1), ... (Nx, 0, 1),
+ ...
+ (0, Ny, 2), (1, Ny, 2), (2, Ny, 2), ... (Nx, Ny, 2),
+ ...
+ (0, Ny, Nz), (1, Ny, Nz), (2, Ny, Nz), ... (Nx, Ny, Nz)
+]
+```
+
+and the array index for a position p contained completely in p1..p2 is:
+
+`(p.Z - p1.Z) * Ny * Nx + (p.Y - p1.Y) * Nx + (p.X - p1.X) + 1`
+
+Note that this is the same "flat 3D array" format as `PerlinNoiseMap:get3dMap_flat()`.
+VoxelArea objects (see section 'VoxelArea') can be used to simplify calculation of the index
+for a single point in a flat VoxelManip array.
+
+##### Content IDs
+A Content ID is a unique integer identifier for a specific node type. These IDs are used by VoxelManip
+in place of the node name string for `VoxelManip:get_data()` and `VoxelManip:set_data()`. You can use
+`minetest.get_content_id()` to look up the Content ID for the specified node name, and
+`minetest.get_name_from_content_id()` to look up the node name string for a given Content ID.
+After registration of a node, its Content ID will remain the same throughout execution of the mod.
+Note that the node being queried needs to have already been been registered.
+
+The following builtin node types have their Content IDs defined as constants:
+```
+core.CONTENT_UNKNOWN (ID for "unknown" nodes)
+core.CONTENT_AIR (ID for "air" nodes)
+core.CONTENT_IGNORE (ID for "ignore" nodes)
+```
+
+##### Mapgen VoxelManip objects
+Inside of `on_generated()` callbacks, it is possible to retrieve the same VoxelManip object used by the
+core's Map Generator (commonly abbreviated Mapgen). Most of the rules previously described still apply
+but with a few differences:
+
+* The Mapgen VoxelManip object is retrieved using: `minetest.get_mapgen_object("voxelmanip")`
+* This VoxelManip object already has the region of map just generated loaded into it; it's not necessary
+ to call `VoxelManip:read_from_map()` before using a Mapgen VoxelManip.
+* The `on_generated()` callbacks of some mods may place individual nodes in the generated area using
+ non-VoxelManip map modification methods. Because the same Mapgen VoxelManip object is passed through
+ each `on_generated()` callback, it becomes necessary for the Mapgen VoxelManip object to maintain
+ consistency with the current map state. For this reason, calling any of the following functions:
+ `minetest.add_node()`, `minetest.set_node()`, or `minetest.swap_node()`
+ 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
+for these liquid nodes to begin flowing. It is recommended to call this function only after having
+written all buffered data back to the VoxelManip object, save for special situations where the modder
+desires to only have certain liquid nodes begin flowing.
+
+The functions `minetest.generate_ores()` and `minetest.generate_decorations()` will generate all
+registered decorations and ores throughout the full area inside of the specified VoxelManip object.
+
+`minetest.place_schematic_on_vmanip()` is otherwise identical to `minetest.place_schematic()`,
+except instead of placing the specified schematic directly on the map at the specified position, it
+will place the schematic inside of the VoxelManip.
+
+##### Notes
+* Attempting to read data from a VoxelManip object before map is read will result in a zero-length
+ array table for `VoxelManip:get_data()`, and an "ignore" node at any position for
+ `VoxelManip:get_node_at()`.
+* If either a region of map has not yet been generated or is out-of-bounds of the map, that region is
+ filled with "ignore" nodes.
+* Other mods, or the core itself, could possibly modify the area of map currently loaded into a VoxelManip
+ object. With the exception of Mapgen VoxelManips (see above section), the internal buffers are not
+ updated. For this reason, it is strongly encouraged to complete the usage of a particular VoxelManip
+ object in the same callback it had been created.
+* If a VoxelManip object will be used often, such as in an `on_generated()` callback, consider passing
+ a file-scoped table as the optional parameter to `VoxelManip:get_data()`, which serves as a static
+ buffer the function can use to write map data to instead of returning a new table each call. This
+ greatly enhances performance by avoiding unnecessary memory allocations.
#### Methods
-* `read_from_map(p1, p2)`: Reads a chunk of map from the map containing the
- region formed by `p1` and `p2`.
+* `read_from_map(p1, p2)`: Loads a chunk of map into the VoxelManip object containing
+ the region formed by `p1` and `p2`.
* returns actual emerged `pmin`, actual emerged `pmax`
* `write_to_map()`: Writes the data loaded from the `VoxelManip` back to the map.
- * **important**: data must be set using `VoxelManip:set_data` before calling this
+ * **important**: data must be set using `VoxelManip:set_data()` before calling this
* `get_node_at(pos)`: Returns a `MapNode` table of the node currently loaded in
the `VoxelManip` at that position
-* `set_node_at(pos, node)`: Sets a specific `MapNode` in the `VoxelManip` at
- that position
-* `get_data()`: Gets the data read into the `VoxelManip` object
- * returns raw node data is in the form of an array of node content IDs
+* `set_node_at(pos, node)`: Sets a specific `MapNode` in the `VoxelManip` at that position
+* `get_data([buffer])`: Retrieves the node content data loaded into the `VoxelManip` object
+ * 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`
-* `set_lighting(light, p1, p2)`: Set the lighting within the `VoxelManip` to a uniform value
+* `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`
* (`p1`, `p2`) is the area in which lighting is set;
* 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
* `set_param2_data(param2_data)`: Sets the `param2` contents of each node in the `VoxelManip`
-* `calc_lighting(p1, p2)`: Calculate lighting within 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`
* (`p1`, `p2`) is the area in which lighting is set; defaults to the whole area
- if left out
+ if left out or nil
+ * `propagate_shadow` is an optional boolean deciding whether shadows in a generated
+ mapchunk above are propagated down into the mapchunk; defaults to `true` if left out
* `update_liquids()`: Update liquid flow
* `was_modified()`: Returns `true` or `false` if the data in the voxel manipulator
had been modified since the last read from map, due to a call to
stepheight = 0,
automatic_face_movement_dir = 0.0,
-- ^ automatically set yaw to movement direction; offset in degrees; false to disable
+ automatic_face_movement_max_rotation_per_sec = -1,
+ -- ^ limit automatic rotation to this value in degrees per second. values < 0 no limit
+ backface_culling = true, -- false to disable backface_culling for model
+ 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
}
### Entity definition (`register_entity`)
{
-- In the following two fields, also group:groupname will work.
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)
- chance = 1, -- (chance of trigger is 1.0/this)
+ 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),
}
+### LBM (LoadingBlockModifier) definition (`register_lbm`)
+
+ {
+ name = "modname:replace_legacy_door",
+ nodenames = {"default:lava_source"},
+ -- ^ List of node names to trigger the LBM on.
+ -- Also non-registered nodes will work.
+ -- Groups (as of group:groupname) will work as well.
+ run_at_every_load = false,
+ -- ^ Whether to run the LBM's action every time a block gets loaded,
+ -- and not just for blocks that were saved last time before LBMs were
+ -- introduced to the world.
+ action = func(pos, node),
+ }
+
### Item definition (`register_node`, `register_craftitem`, `register_tool`)
{
--[[
^ Shall place item and return the leftover itemstack
^ default: minetest.item_place ]]
+ on_secondary_use = func(itemstack, user, pointed_thing),
+ --[[
+ ^ Same as on_place but called when pointing at nothing.
+ ^ pointed_thing : always { type = "nothing" }
+ ]]
on_drop = func(itemstack, dropper, pos),
--[[
^ Shall drop item and return the leftover itemstack
### Tile definition
* `"image.png"`
* `{name="image.png", animation={Tile Animation definition}}`
-* `{name="image.png", backface_culling=bool}`
- * backface culling only supported in special tiles
+* `{name="image.png", backface_culling=bool, tileable_vertical=bool,
+ tileable_horizontal=bool}`
+ * 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
* deprecated, yet still supported field names:
* `image` (name)
^ List can be shortened to needed length ]]
alpha = 255,
use_texture_alpha = false, -- Use texture's alpha channel
- post_effect_color = {a=0, r=0, g=0, b=0}, -- If player is inside node
+ 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
^ falling by 1 per node. This line is essential for a light source node to spread its light. ]]
diggable = true, -- If false, can never be dug
climbable = false, -- If true, can be climbed on (ladder)
buildable_to = false, -- If true, placed nodes can replace this node
+ floodable = false, -- If true, liquids flow into and replace this node
liquidtype = "none", -- "none"/"source"/"flowing"
liquid_alternative_flowing = "", -- Flowing version of source liquid
liquid_alternative_source = "", -- Source version of flowing liquid
light_source = 0, -- Amount of light emitted by node
damage_per_second = 0, -- If player is inside node, this damage is caused
node_box = {type="regular"}, -- See "Node boxes"
+ connects_to = nodenames, --[[
+ * Used for nodebox nodes with the type == "connected"
+ * Specifies to what neighboring nodes connections will be drawn
+ * e.g. `{"group:fence", "default:wood"}` or `"default:stone"` ]]
+ connect_sides = { "top", "bottom", "front", "left", "back", "right" }, --[[
+ ^ Tells connected nodebox nodes to connect only to these sides of this node. ]]
mesh = "model",
selection_box = {type="regular"}, -- See "Node boxes" --[[
^ If drawtype "nodebox" is used and selection_box is nil, then node_box is used. ]]
dig = <SimpleSoundSpec>, -- "__group" = group-based sound (default)
dug = <SimpleSoundSpec>,
place = <SimpleSoundSpec>,
+ place_failed = <SimpleSoundSpec>,
},
drop = "", -- Name of dropped node when dug. Default is the node itself.
-- Alternatively:
},
on_construct = func(pos), --[[
- ^ Node constructor; always called after adding node
+ ^ Node constructor; called after adding node
^ Can set up metadata and stuff like that
+ ^ Not called for bulk node placement (i.e. schematics and VoxelManip)
^ default: nil ]]
on_destruct = func(pos), --[[
- ^ Node destructor; always called before removing node
+ ^ Node destructor; called before removing node
+ ^ Not called for bulk node placement (i.e. schematics and VoxelManip)
^ default: nil ]]
after_destruct = func(pos, oldnode), --[[
- ^ Node destructor; always called after removing node
+ ^ Node destructor; called after removing node
+ ^ Not called for bulk node placement (i.e. schematics and VoxelManip)
^ default: nil ]]
after_place_node = func(pos, placer, itemstack, pointed_thing) --[[
y_max = 64,
flags = "",
-- ^ Attributes for this ore generation
- noise_threshhold = 0.5,
+ noise_threshold = 0.5,
-- ^ If noise is above this threshold, ore is placed. Not needed for a uniform distribution
noise_params = {offset=0, scale=1, spread={x=100, y=100, z=100}, seed=23, octaves=3, persist=0.70}
-- ^ NoiseParams structure describing the perlin noise used for ore distribution.
-- ^ Can be a list of (or a single) biome names, IDs, or definitions.
}
+### Biome definition (`register_biome`)
+
+ {
+ name = "tundra",
+ node_dust = "default:snow",
+ -- ^ Node dropped onto upper surface after all else is generated.
+ node_top = "default:dirt_with_snow",
+ depth_top = 1,
+ -- ^ Node forming surface layer of biome and thickness of this layer.
+ node_filler = "default:permafrost",
+ depth_filler = 3,
+ -- ^ Node forming lower layer of biome and thickness of this layer.
+ node_stone = "default:bluestone",
+ -- ^ Node that replaces all stone nodes between roughly y_min and y_max.
+ node_water_top = "default:ice",
+ depth_water_top = 10,
+ -- ^ Node forming a surface layer in seawater with the defined thickness.
+ node_water = "",
+ -- ^ Node that replaces all seawater nodes not in the defined surface layer.
+ node_river_water = "default:ice",
+ -- ^ Node that replaces river water in mapgens that use default:river_water.
+ y_min = 1,
+ y_max = 31000,
+ -- ^ Lower and upper limits for biome.
+ -- ^ Because biome is not recalculated for every node in a node column
+ -- ^ some biome materials can exceed their limits, especially stone.
+ -- ^ For each node column in a mapchunk, biome is only recalculated at column
+ -- ^ top and at each of these surfaces:
+ -- ^ Ground below air, water below air, ground below water.
+ -- ^ The selected biome then stays in effect for all nodes below until
+ -- ^ column base or the next biome recalculation.
+ 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.
+ -- ^ 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.
+ }
+
### Decoration definition (`register_decoration`)
{
-- ^ 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`.
+ flags = "liquid_surface, force_placement",
+ -- ^ 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.
----- Simple-type parameters
decoration = "default:grass",
-- ^ 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, in a 1-node square radius.
+ -- ^ 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.
},
-- ^ See 'Schematic specifier' for details.
replacements = {["oldname"] = "convert_to", ...},
- flags = "place_center_x, place_center_y, place_center_z, force_placement",
+ flags = "place_center_x, place_center_y, place_center_z",
-- ^ Flags for schematic decorations. See 'Schematic attributes'.
rotation = "90" -- rotate schematic 90 degrees on placement
-- ^ Rotation can be "0", "90", "180", "270", or "random".
playername = "singleplayer"
-- ^ Playername is optional, if specified spawns particle only on the player's client
}
+
+### `HTTPRequest` definition (`http_fetch`, `http_fetch_async`)
+
+ {
+ url = "http://example.org",
+ timeout = 10,
+ -- ^ Timeout for connection in seconds. Default is 3 seconds.
+ post_data = "Raw POST request data string" OR { field1 = "data1", field2 = "data2" },
+ -- ^ Optional, if specified a POST request with post_data is performed.
+ -- ^ Accepts both a string and a table. If a table is specified, encodes table
+ -- ^ as x-www-form-urlencoded key-value pairs.
+ -- ^ If post_data ist not specified, a GET request is performed instead.
+ user_agent = "ExampleUserAgent",
+ -- ^ Optional, if specified replaces the default minetest user agent with given string
+ extra_headers = { "Accept-Language: en-us", "Accept-Charset: utf-8" },
+ -- ^ Optional, if specified adds additional headers to the HTTP request. You must make sure
+ -- ^ that the header strings follow HTTP specification ("Key: Value").
+ multipart = boolean
+ -- ^ Optional, if true performs a multipart HTTP request. Default is false.
+ }
+
+### `HTTPRequestResult` definition (`http_fetch` callback, `http_fetch_async_get`)
+
+ {
+ completed = true,
+ -- ^ If true, the request has finished (either succeeded, failed or timed out)
+ succeeded = true,
+ -- ^ If true, the request was succesful
+ timeout = false,
+ -- ^ If true, the request timed out
+ code = 200,
+ -- ^ HTTP status code
+ data = "response"
+ }
projects / minetest.git / blobdiff