* `minetest.register_craftitem(name, item definition)`
* added to `minetest.registered_items[name]`
+* `minetest.register_biome(biome definition)`
+ * returns an integer uniquely identifying the registered biome
+ * added to `minetest.registered_biome` with the key of `biome.name`
+ * if `biome.name` is nil, the key is the returned ID
+
* `minetest.register_ore(ore definition)`
* returns an integer uniquely identifying the registered ore
* added to `minetest.registered_ores` with the key of `ore.name`
* added to `minetest.registered_decorations` with the key of `decoration.name`
* if `decoration.name` is nil, the key is the returned ID
+* `minetest.register_schematic(schematic definition)`
+ * returns an integer uniquely identifying the registered schematic
+ * added to `minetest.registered_schematic` with the key of `schematic.name`
+ * if `schematic.name` is nil, the key is the returned ID
+ * if the schematic is loaded from a file, schematic.name is set to the filename
+ * if the function is called when loading the mod, and schematic.name is a relative path,
+ * then the current mod path will be prepended to the schematic filename
+
+* `minetest.clear_registered_biomes()`
+ * clears all biomes currently registered
+
* `minetest.clear_registered_ores()`
- * clears all ores currently registered
+ * clears all ores currently registered
* `minetest.clear_registered_decorations()`
- * clears all decorations currently registered
+ * clears all decorations currently registered
+
+* `minetest.clear_registered_schematics()`
+ * clears all schematics currently registered
Note that in some cases you will stumble upon things that are not contained
in these tables (e.g. when a mod has been removed). Always check for
--------------------
A schematic specifier identifies a schematic by either a filename to a
Minetest Schematic file (`.mts`) or through raw data supplied through Lua,
-in the form of a table. This table must specify two fields:
-
-* The `size` field is a 3D vector containing the dimensions of the provided schematic.
-* The `data` field is a flat table of MapNodes making up the schematic,
- in the order of `[z [y [x]]]`.
-
-**Important**: The default value for `param1` in MapNodes here is `255`,
-which represents "always place".
-
-In the bulk `MapNode` data, `param1`, instead of the typical light values,
-instead represents the probability of that node appearing in the structure.
-
-When passed to `minetest.create_schematic`, probability is an integer value
-ranging from `0` to `255`:
-
-* A probability value of `0` means that node will never appear (0% chance).
-* A probability value of `255` means the node will always appear (100% chance).
-* If the probability value `p` is greater than `0`, then there is a
- `(p / 256 * 100)`% chance that node will appear when the schematic is
+in the form of a table. This table specifies the following fields:
+
+* 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)
+* 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)
+
+About probability values:
+* A probability value of `0` or `1` means that node will never appear (0% chance).
+* A probability value of `254` or `255` means the node will always appear (100% chance).
+* If the probability value `p` is greater than `1`, then there is a
+ `(p / 256 * 100)` percent chance that node will appear when the schematic is
placed on the map.
-**Important note**: Node aliases cannot be used for a raw schematic provided
- when registering as a decoration.
-
Schematic attributes
--------------------
### Utilities
-* `minetest.get_current_modname()`: returns a string
+* `minetest.get_current_modname()`: returns the currently loading mod's name, when we are loading a mod
* `minetest.get_modpath(modname)`: returns e.g. `"/home/user/.minetest/usermods/modname"`
* Useful for loading additional `.lua` modules or static data from mod
* `minetest.get_modnames()`: returns a list of installed mods
* `minetest.punch_node(pos)`
* Punch node with the same effects that a player would cause
+* `minetest.find_nodes_with_meta(pos1, pos2)`
+ * Get a table of positions of nodes that have metadata within a region {pos1, pos2}
* `minetest.get_meta(pos)`
* Get a `NodeMetaRef` at that position
* `minetest.get_node_timer(pos)`
* `force_placement` is a boolean indicating whether nodes other than `air` and
`ignore` are replaced by the schematic
+* `minetest.serialize_schematic(schematic, format, options)`
+ * Return the serialized schematic specified by schematic (see: Schematic specifier)
+ * in the `format` of either "mts" or "lua".
+ * "mts" - a string containing the binary MTS data used in the MTS file format
+ * "lua" - a string containing Lua code representing the schematic in table format
+ * `options` is a table containing the following optional parameters:
+ * If `lua_use_comments` is true and `format` is "lua", the Lua code generated will have (X, Z)
+ * position comments for every X row generated in the schematic data for easier reading.
+ * 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.
+
### Misc.
* `minetest.get_connected_players()`: returns list of `ObjectRefs`
* `minetest.hash_node_position({x=,y=,z=})`: returns an 48-bit integer
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.
+
### Global objects
* `minetest.env`: `EnvRef` of the server environment and world.
* Any function in the minetest namespace can be called using the syntax
* `position`: `{x=num, y=num, z=num}` (relative)
* `rotation`: `{x=num, y=num, z=num}`
* `set_properties(object property table)`
+* `is_player()`: returns true for players, false otherwise
##### LuaEntitySAO-only (no-op for other objects)
* `setvelocity({x=num, y=num, z=num})`
* `get_luaentity()`
##### Player-only (no-op for other objects)
-* `is_player()`: true for players, false for others
* `get_player_name()`: returns `""` if is not a player
* `get_look_dir()`: get camera direction as a unit vector
* `get_look_pitch()`: pitch in radians
{x=189, y=198}, -- < dig animation key frames
{x=200, y=219}, -- < walk+dig animation key frames
frame_speed=30): -- < animation 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}`)
-- ^ 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.
}
### Decoration definition (`register_decoration`)
biomes = {"Oceanside", "Hills", "Plains"},
-- ^ 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.
y_min = -31000
y_max = 31000
-- ^ Minimum and maximum `y` positions these decorations can be generated at.
schematic = "foobar.mts",
-- ^ If schematic is a string, it is the filepath relative to the current working directory of the
-- ^ specified Minetest schematic file.
+ -- ^ - OR -, could be the ID of a previously registered schematic
-- ^ - OR -, could instead be a table containing two mandatory fields, size and data,
-- ^ and an optional table yslice_prob:
schematic = {