is missing, that does not prevent this mod from being loaded.
### `screenshot.png`
-A screenshot shown in modmanager within mainmenu.
+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.
The `:` prefix can also be used for maintaining backwards compatibility.
### Aliases
-Aliases can be added by using `minetest.register_alias(name, convert_to)`.
+Aliases can be added by using `minetest.register_alias(name, convert_to)` or
+`minetest.register_alias_force(name, convert_to).
This will make Minetest to convert things called name to things called
`convert_to`.
+The only difference between `minetest.register_alias` and
+`minetest.register_alias_force` is that if an item called `name` exists,
+`minetest.register_alias` will do nothing while
+`minetest.register_alias_force` will unregister it.
+
This can be used for maintaining backwards compatibility.
This can be also used for setting quick access names for things, e.g. if
Example: `cobble.png^(thing1.png^thing2.png)`
A texture for `thing1.png^thing2.png` is created and the resulting
-texture is overlaid over `cobble.png`.
+texture is overlaid on top of `cobble.png`.
+
+### Escaping
+Modifiers that accept texture names (e.g. `[combine`) accept escaping to allow
+passing complex texture names as arguments. Escaping is done with backslash and
+is required for `^` and `:`.
+
+Example: `cobble.png^[lowpart:50:color.png\^[mask\:trans.png`
+
+The lower 50 percent of `color.png^[mask:trans.png` are overlaid
+on top of `cobble.png`.
### Advanced texture modifiers
default_sandstone.png^[resize:16x16
+#### `[opacity:<r>`
+ Makes the base image transparent according to the given ratio.
+ r must be between 0 and 255.
+ 0 means totally transparent.
+ 255 means totally opaque.
+
+Example:
+
+ default_sandstone.png^[opacity:127
+
+#### `[invert:<mode>`
+Inverts the given channels of the base image.
+Mode may contain the characters "r", "g", "b", "a".
+Only the channels that are mentioned in the mode string will be inverted.
+
+Example:
+
+ default_apple.png^[invert:rgb
+
#### `[brighten`
Brightens the texture.
default_stone.png^[transformFXR90
#### `[inventorycube{<top>{<left>{<right>`
-`^` is replaced by `&` in texture names.
+Escaping does not apply here and `^` is replaced by `&` in texture names instead.
Create an inventory cube texture using the side textures.
* `minetest.register_craftitem(name, item definition)`
* added to `minetest.registered_items[name]`
+* `minetest.unregister_item(name)`
+ * Unregisters the item name from engine, and deletes the entry with key
+ * `name` from `minetest.registered_items` and from the associated item
+ * table according to its nature: minetest.registered_nodes[] etc
+
* `minetest.register_biome(biome definition)`
* returns an integer uniquely identifying the registered biome
* added to `minetest.registered_biome` with the key of `biome.name`
^ The rotation of this node is stored in param2. Plants are rotated this way.
Values range 0 - 179. The value stored in param2 is multiplied by two to
get the actual rotation of the node.
+ paramtype2 == "meshoptions"
+ ^ Only valid for "plantlike". The value of param2 becomes a bitfield which can
+ be used to change how the client draws plantlike nodes. Bits 0, 1 and 2 form
+ a mesh selector. Currently the following meshes are choosable:
+ 0 = a "x" shaped plant (ordinary plant)
+ 1 = a "+" shaped plant (just rotated 45 degrees)
+ 2 = a "*" shaped plant with 3 faces instead of 2
+ 3 = a "#" shaped plant with 4 faces instead of 2
+ 4 = a "#" shaped plant with 4 faces that lean outwards
+ 5-7 are unused and reserved for future meshes.
+ Bits 3 through 7 are optional flags that can be combined and give these
+ effects:
+ bit 3 (0x08) - Makes the plant slightly vary placement horizontally
+ bit 4 (0x10) - Makes the plant mesh 1.4x larger
+ bit 5 (0x20) - Moves each face randomly a small bit down (1/8 max)
+ bits 6-7 are reserved for future use.
collision_box = {
type = "fixed",
fixed = {
* `fixed_size`: `true`/`false` (optional)
* deprecated: `invsize[<W>,<H>;]`
+#### `container[<X>,<Y>]`
+* Start of a container block, moves all physical elements in the container by (X, Y)
+* Must have matching container_end
+* Containers can be nested, in which case the offsets are added
+ (child containers are relative to parent containers)
+
+#### `container_end[]`
+* End of a container, following elements are no longer relative to this container
+
#### `list[<inventory location>;<list name>;<X>,<Y>;<W>,<H>;]`
* Show an inventory list
#### `pwdfield[<X>,<Y>;<W>,<H>;<name>;<label>]`
* Textual password style field; will be sent to server when a button is clicked
+* When enter is pressed in field, fields.key_enter_field will be sent with the name
+ of this field.
* `x` and `y` position the field relative to the top left of the menu
* `w` and `h` are the size of the field
* Fields are a set height, but will be vertically centred on `h`
* Position and size units are inventory slots
* `name` is the name of the field as returned in fields to `on_receive_fields`
* `label`, if not blank, will be text printed on the top left above the field
+* See field_close_on_enter to stop enter closing the formspec
#### `field[<X>,<Y>;<W>,<H>;<name>;<label>;<default>]`
* Textual field; will be sent to server when a button is clicked
+* When enter is pressed in field, fields.key_enter_field will be sent with the name
+ of this field.
* `x` and `y` position the field relative to the top left of the menu
* `w` and `h` are the size of the field
* Fields are a set height, but will be vertically centred on `h`
* `default` may contain variable references such as `${text}'` which
will fill the value from the metadata value `text`
* **Note**: no extra text or more than a single variable is supported ATM.
+* See field_close_on_enter to stop enter closing the formspec
#### `field[<name>;<label>;<default>]`
* As above, but without position/size units
+* When enter is pressed in field, fields.key_enter_field will be sent with the name
+ of this field.
* Special field for creating simple forms, such as sign text input
* Must be used without a `size[]` element
* A "Proceed" button will be added automatically
+* See field_close_on_enter to stop enter closing the formspec
+
+#### `field_close_on_enter[<name>;<close_on_enter>]`
+* <name> is the name of the field
+* if <close_on_enter> is false, pressing enter in the field will submit the form but not close it
+* defaults to true when not specified (ie: no tag for a field)
#### `textarea[<X>,<Y>;<W>,<H>;<name>;<label>;<default>]`
* Same as fields above, but with multi-line input
* Items to be shown in dropdown
* Index of currently selected dropdown item
-#### `checkbox[<X>,<Y>;<name>;<label>;<selected>;<tooltip>]`
+#### `checkbox[<X>,<Y>;<name>;<label>;<selected>]`
* Show a checkbox
* `x` and `y`: position of checkbox
* `name` fieldname data is transferred to Lua
* `label` to be shown left of checkbox
* `selected` (optional): `true`/`false`
-* `tooltip` (optional)
#### `scrollbar[<X>,<Y>;<W>,<H>;<orientation>;<name>;<value>]`
* Show a scrollbar
* `minetest.register_node(name, node definition)`
* `minetest.register_tool(name, item definition)`
* `minetest.register_craftitem(name, item definition)`
+* `minetest.unregister_item(name)`
* `minetest.register_alias(name, convert_to)`
+* `minetest.register_alias_force(name, convert_to)`
* `minetest.register_craft(recipe)`
+ * Check recipe table syntax for different types below.
+* `minetest.clear_craft(recipe)`
+ * Will erase existing craft based either on output item or on input recipe.
+ * Specify either output or input only. If you specify both, input will be ignored. For input use the same recipe table
+ syntax as for `minetest.register_craft(recipe)`. For output specify only the item, without a quantity.
+ * If no erase candidate could be found, Lua exception will be thrown.
+ * Warning! The type field ("shaped","cooking" or any other) will be ignored if the recipe
+ contains output. Erasing is then done independently from the crafting method.
* `minetest.register_ore(ore definition)`
+* `minetest.register_biome(biome definition)`
* `minetest.register_decoration(decoration definition)`
* `minetest.override_item(name, redefinition)`
* Overrides fields of an item registered with register_node/tool/craftitem.
* Note: Item must already be defined, (opt)depend on the mod defining it.
* Example: `minetest.override_item("default:mese", {light_source=LIGHT_MAX})`
-
* `minetest.clear_registered_ores()`
+* `minetest.clear_registered_biomes()`
* `minetest.clear_registered_decorations()`
### Global callback registration functions
* `minetest.register_privilege(name, definition)`
* `definition`: `"description text"`
* `definition`: `{ description = "description text", give_to_singleplayer = boolean}`
- the default of `give_to_singleplayer` is true
+ the default of `give_to_singleplayer` is true
* To allow players with basic_privs to grant, see basic_privs minetest.conf setting.
* `minetest.register_authentication_handler(handler)`
* See `minetest.builtin_auth_handler` in `builtin.lua` for reference
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
* `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`
* `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:
+ 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
+* `minetest.set_mapgen_setting(name, value, [override_meta=false])`
+ * Sets a mapgen param to `value`, and will take effect if the corresponding mapgen setting
+ is not already present in map_meta.txt. If the optional boolean override_meta is set to true,
+ this setting will become the active setting regardless of the map metafile contents.
+ * Note: to set the seed, use "seed", not "fixed_map_seed"
+* `minetest.set_mapgen_setting_noiseparams(name, value, [override_meta=false])`
+ * Same as above, except value is a NoiseParams table
* `minetest.set_noiseparams(name, noiseparams, set_default)`
* Sets the noiseparams setting of `name` to the noiseparams table specified in `noiseparams`.
* `set_default` is an optional boolean (default: `true`) that specifies whether the setting
* increase level of leveled node by level, default `level` equals `1`
* if `totallevel > maxlevel`, returns rest (`total-max`)
* can be negative for decreasing
+* `nodeupdate_single(pos)`
+ * causes an unsupported `group:falling_node` node to fall and causes an
+ unattached `group:attached_node` node to fall.
+ * does not spread these updates to neighbours
+ * a helper function, not officially part of the API, but useful
### Inventory
`minetest.get_inventory(location)`: returns an `InvRef`
* 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`
+ * Performs given request asynchronously and returns handle for `HTTPApiTable.fetch_async_get`
* `HTTPApiTable.fetch_async_get(handle)`: returns HTTPRequestResult
* Return response data for given asynchronous HTTP request
the creative mode setting, and checks for "sneak" to set the `invert_wall`
parameter.
-* `minetest.forceload_block(pos)`
+* `minetest.forceload_block(pos[, transient])`
* forceloads the position `pos`.
* returns `true` if area could be forceloaded
- * Please note that forceloaded areas are saved when the server restarts.
+ * If `transient` is `false` or absent, the forceload will be persistent
+ (saved between server runs). If `true`, the forceload will be transient
+ (not saved between server runs).
-* `minetest.forceload_free_block(pos)`
+* `minetest.forceload_free_block(pos[, transient])`
* stops forceloading the position `pos`
+ * If `transient` is `false` or absent, frees a persistent forceload.
+ If `true`, frees a transient forceload.
* `minetest.request_insecure_environment()`: returns an environment containing
insecure functions if the calling mod has been listed as trusted in the
* `get_inventory()`: returns `InvRef`
* `to_table()`: returns `nil` or `{fields = {...}, inventory = {list1 = {}, ...}}`
* `from_table(nil or {})`
+ * to clear metadata, use from_table(nil)
* See "Node Metadata"
### `NodeTimerRef`
#### Methods
* `get_area(id, include_borders, include_data)`: returns the area with the id `id`.
(optional) Boolean values `include_borders` and `include_data` control what's copied.
+ Returns nil if specified area id does not exist.
* `get_areas_for_pos(pos, include_borders, include_data)`: returns all areas that contain
the position `pos`. (optional) Boolean values `include_borders` and `include_data` control
what's copied.
#### Methods
* `is_empty()`: Returns `true` if stack is empty.
* `get_name()`: Returns item name (e.g. `"default:stone"`).
-* `set_name(item_name)`: Returns boolean success.
- Clears item on failure.
+* `set_name(item_name)`: Returns boolean whether item was cleared
* `get_count()`: Returns number of items on the stack.
-* `set_count(count)`
+* `set_count(count)`: Returns boolean whether item was cleared
* `get_wear()`: Returns tool wear (`0`-`65535`), `0` for non-tools.
-* `set_wear(wear)`: Returns boolean success.
- Clears item on failure.
+* `set_wear(wear)`: Returns boolean whether item was cleared
* `get_metadata()`: Returns metadata (a string attached to an item stack).
* `set_metadata(metadata)`: Returns true.
* `clear()`: removes all items from the stack, making it empty.
* It has the member `.object`, which is an `ObjectRef` pointing to the object
* The original prototype stuff is visible directly via a metatable
* Callbacks:
- * `on_activate(self, staticdata)`
+ * `on_activate(self, staticdata, dtime_s)`
* Called when the object is instantiated.
+ * `dtime_s` is the time passed since the object was unloaded, which can
+ be used for updating the entity state.
* `on_step(self, dtime)`
* Called on every server tick, after movement and collision processing.
`dtime` is usually 0.1 seconds, as per the `dedicated_server_step` setting
`in minetest.conf`.
- * `on_punch(self, puncher, time_from_last_punch, tool_capabilities, dir`
+ * `on_punch(self, puncher, time_from_last_punch, tool_capabilities, dir)`
* Called when somebody punches the object.
* Note that you probably want to handle most punches using the
automatic armor group system.
on_activate = function(self, staticdata, dtime_s),
on_step = function(self, dtime),
- on_punch = function(self, hitter),
+ on_punch = function(self, puncher, time_from_last_punch, tool_capabilities, dir),
on_rightclick = function(self, clicker),
get_staticdata = function(self),
-- ^ Called sometimes; the string returned is passed to on_activate when
### ABM (ActiveBlockModifier) definition (`register_abm`)
{
+ 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.
nodenames = {"default:lava_source"},
neighbors = {"default:water_source", "default:water_flowing"}, -- Any of these --[[
### LBM (LoadingBlockModifier) definition (`register_lbm`)
{
+ label = "Upgrade legacy doors",
+ -- ^ Descriptive label for profiling purposes (optional).
+ -- Definitions with identical labels will be listed as one.
name = "modname:replace_legacy_door",
nodenames = {"default:lava_source"},
-- ^ List of node names to trigger the LBM on.
{
description = "Steel Axe",
- groups = {}, -- key=name, value=rating; rating=1..3.
+ groups = {}, -- key = name, value = rating; rating = 1..3.
if rating not applicable, use 1.
- e.g. {wool=1, fluffy=3}
- {soil=2, outerspace=1, crumbly=1}
- {bendy=2, snappy=1},
- {hard=1, metal=1, spikes=1}
+ e.g. {wool = 1, fluffy = 3}
+ {soil = 2, outerspace = 1, crumbly = 1}
+ {bendy = 2, snappy = 1},
+ {hard = 1, metal = 1, spikes = 1}
inventory_image = "default_tool_steelaxe.png",
wield_image = "",
- wield_scale = {x=1,y=1,z=1},
+ wield_scale = {x = 1, y = 1, z = 1},
stack_max = 99,
range = 4.0,
liquids_pointable = false,
tool_capabilities = {
full_punch_interval = 1.0,
- max_drop_level=0,
- groupcaps={
+ max_drop_level = 0,
+ groupcaps = {
-- For example:
- snappy={times={[2]=0.80, [3]=0.40}, maxwear=0.05, maxlevel=1},
- choppy={times={[3]=0.90}, maxwear=0.05, maxlevel=0}
+ choppy = {times = {[1] = 2.50, [2] = 1.40, [3] = 1.00}, uses = 20, maxlevel = 2},
},
- damage_groups = {groupname=damage},
+ damage_groups = {groupname = damage},
},
node_placement_prediction = nil,
--[[
^ Don't forget to use "leveled" type nodebox. ]]
liquid_range = 8, -- number of flowing nodes around source (max. 8)
drowning = 0, -- Player will take this amount of damage if no bubbles are left
- light_source = 0, -- Amount of light emitted by node
+ light_source = 0, --[[
+ ^ Amount of light emitted by node.
+ ^ To set the maximum (currently 14), use the value 'minetest.LIGHT_MAX'.
+ ^ A value outside the range 0 to minetest.LIGHT_MAX causes undefined behavior.]]
damage_per_second = 0, -- If player is inside node, this damage is caused
node_box = {type="regular"}, -- See "Node boxes"
connects_to = nodenames, --[[
max_items = 1, -- Maximum number of items to drop.
items = { -- Choose max_items randomly from this list.
{
- items = {"foo:bar", "baz:frob"}, -- Choose one item randomly from this list.
- rarity = 1, -- Probability of getting is 1 / rarity.
+ items = {"foo:bar", "baz:frob"}, -- Items to drop.
+ rarity = 1, -- Probability of dropping is 1 / rarity.
},
},
},
{
deco_type = "simple", -- See "Decoration types"
place_on = "default:dirt_with_grass",
- -- ^ Node that decoration can be placed on
+ -- ^ Node (or list of nodes) that the decoration can be placed on
sidelen = 8,
-- ^ Size of divisions made in the chunk being generated.
-- ^ If the chunk size is not evenly divisible by sidelen, sidelen is made equal to the chunk size.
-- ^ Minimum and maximum `y` positions these decorations can be generated at.
-- ^ This parameter refers to the `y` position of the decoration base, so
-- the actual maximum height would be `height_max + size.Y`.
+ spawn_by = "default:water",
+ -- ^ Node (or list of nodes) that the decoration only spawns next to.
+ -- ^ Checks two horizontal planes of neighbouring nodes (including diagonal neighbours),
+ -- ^ one plane at Y = surface and one plane at Y = surface = + 1.
+ num_spawn_by = 1,
+ -- ^ Number of spawn_by nodes that must be surrounding the decoration position to occur.
+ -- ^ If absent or -1, decorations occur next to any nodes.
flags = "liquid_surface, force_placement",
-- ^ Flags for all decoration types.
-- ^ "liquid_surface": Instead of placement on the highest solid surface
height_max = 0,
-- ^ Number of nodes the decoration can be at maximum.
-- ^ If absent, the parameter 'height' is used as a constant.
- spawn_by = "default:water",
- -- ^ Node that the decoration only spawns next to.
- -- ^ The neighbours checked are the 8 nodes horizontally surrounding the lowest node of the
- -- ^ decoration, and the 8 nodes horizontally surrounding the ground node below the decoration.
- num_spawn_by = 1,
- -- ^ Number of spawn_by nodes that must be surrounding the decoration position to occur.
- -- ^ If absent or -1, decorations occur next to any nodes.
----- Schematic-type parameters
schematic = "foobar.mts",
collision_removal = false,
-- ^ collision_removal: if true then particle is removed when it collides,
-- ^ requires collisiondetection = true to have any effect
+ attached = ObjectRef,
+ -- ^ attached: if defined, makes particle positions relative to this object.
vertical = false,
-- ^ vertical: if true faces player using y axis only
texture = "image.png",
-- ^ Playername is optional, if specified spawns particle only on the player's client
}
-### `HTTPRequest` definition (`http_fetch`, `http_fetch_async`)
+### `HTTPRequest` definition (`HTTPApiTable.fetch_async`, `HTTPApiTable.fetch_async`)
{
url = "http://example.org",
-- ^ Optional, if true performs a multipart HTTP request. Default is false.
}
-### `HTTPRequestResult` definition (`http_fetch` callback, `http_fetch_async_get`)
+### `HTTPRequestResult` definition (`HTTPApiTable.fetch` callback, `HTTPApiTable.fetch_async_get`)
{
completed = true,
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