Fix markdown formating in `game_api.txt`.

master
red-001 2016-03-03 17:40:24 +00:00 committed by paramat
parent 6c6cc2159a
commit 68f5740dcc
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@ -4,18 +4,21 @@ GitHub Repo: https://github.com/minetest/minetest_game
Introduction Introduction
------------ ------------
The Minetest Game subgame offers multiple new possibilities in addition to the Minetest engine's built-in API, The Minetest Game subgame offers multiple new possibilities in addition to the Minetest engine's built-in API,
allowing you to add new plants to farming mod, buckets for new liquids, new stairs and custom panes. allowing you to add new plants to farming mod, buckets for new liquids, new stairs and custom panes.
For information on the Minetest API, visit https://github.com/minetest/minetest/blob/master/doc/lua_api.txt For information on the Minetest API, visit https://github.com/minetest/minetest/blob/master/doc/lua_api.txt
Please note: Please note:
[XYZ] refers to a section the Minetest API
[#ABC] refers to a section in this document * [XYZ] refers to a section the Minetest API
^ Explanation for line above * [#ABC] refers to a section in this document
Bucket API Bucket API
---------- ----------
The bucket API allows registering new types of buckets for non-default liquids. The bucket API allows registering new types of buckets for non-default liquids.
bucket.register_liquid( bucket.register_liquid(
"default:lava_source", -- name of the source node "default:lava_source", -- name of the source node
"default:lava_flowing", -- name of the flowing node "default:lava_flowing", -- name of the flowing node
@ -27,59 +30,61 @@ The bucket API allows registering new types of buckets for non-default liquids.
Beds API Beds API
-------- --------
beds.register_bed( beds.register_bed(
"beds:bed", -- Bed name "beds:bed", -- Bed name
def: See [#Bed definition] -- Bed definition def -- See [#Bed definition]
) )
beds.read_spawns() -- returns a table containing players respawn positions * `beds.read_spawns() ` Returns a table containing players respawn positions
beds.kick_players() -- forces all players to leave bed * `beds.kick_players()` Forces all players to leave bed
beds.skip_night() -- sets world time to morning and saves respawn position of all players currently sleeping * `beds.skip_night()` Sets world time to morning and saves respawn position of all players currently sleeping
###Bed definition
#Bed definition {
--------------- description = "Simple Bed",
{ inventory_image = "beds_bed.png",
description = "Simple Bed", wield_image = "beds_bed.png",
inventory_image = "beds_bed.png", tiles = {
wield_image = "beds_bed.png", bottom = {'Tile definition'}, -- the tiles of the bottom part of the bed.
tiles = { top = {Tile definition} -- the tiles of the bottom part of the bed.
bottom = {[Tile definition], },
^ the tiles of the bottom part of the bed nodebox = {
}, bottom = 'regular nodebox', -- bottom part of bed (see [Node boxes])
top = {[Tile definition], top = 'regular nodebox', -- top part of bed (see [Node boxes])
^ the tiles of the bottom part of the bed },
} selectionbox = 'regular nodebox', -- for both nodeboxes (see [Node boxes])
}, recipe = { -- Craft recipe
nodebox = { {"group:wool", "group:wool", "group:wool"},
bottom = regular nodebox, see [Node boxes], -- bottm part of bed {"group:wood", "group:wood", "group:wood"}
top = regular nodebox, see [Node boxes], -- top part of bed }
},
selectionbox = regular nodebox, see [Node boxes], -- for both nodeboxes
recipe = { -- Craft recipe
{"group:wool", "group:wool", "group:wool"},
{"group:wood", "group:wood", "group:wood"}
} }
}
Doors API Doors API
--------- ---------
The doors mod allows modders to register custom doors and trapdoors. The doors mod allows modders to register custom doors and trapdoors.
doors.register_door(name, def) `doors.register_door(name, def)`
^ name: "Door name"
^ def: See [#Door definition]
-> Registers new door
doors.register_trapdoor(name, def) * Registers new door
^ name: "mod_door" * `name` Name for door
^ def: See [#Trapdoor definition] * `def` See [#Door definition]
-> Registers new trapdoor
doors.get(pos) `doors.register_trapdoor(name, def)`
^ pos = { x = .., y = .., z = ..}
-> Returns an ObjecRef to a door, or nil if the pos did not contain a door
Methods: * Registers new trapdoor
* `name` Name for trapdoor
* `def` See [#Trapdoor definition]
`doors.get(pos)`
* `pos` A position as a table, e.g `{x = 1, y = 1, z = 1}`
* Returns an ObjecRef to a door, or nil if the position does not contain a door
###Methods
:open(player) -- Open the door object, returns if door was opened :open(player) -- Open the door object, returns if door was opened
:close(player) -- Close the door object, returns if door was closed :close(player) -- Close the door object, returns if door was closed
:toggle(player) -- Toggle the door state, returns if state was toggled :toggle(player) -- Toggle the door state, returns if state was toggled
@ -90,164 +95,166 @@ doors.get(pos)
has the permissions needed to open this door. If omitted then no has the permissions needed to open this door. If omitted then no
permission checks are performed. permission checks are performed.
#Door definition ###Door definition
----------------
{
description = "Door description", description = "Door description",
inventory_image = "mod_door_inv.png", inventory_image = "mod_door_inv.png",
groups = {choppy = 1}, groups = {choppy = 2},
tiles = { "mod_door.png" }, tiles = {"mod_door.png"}, -- UV map.
recipe = craftrecipe, recipe = craftrecipe,
sounds = default.node_sound_wood_defaults(), -- optional sounds = default.node_sound_wood_defaults(), -- optional
sound_open = sound play for open door, -- optional sound_open = sound play for open door, -- optional
sound_close = sound play for close door, -- optional sound_close = sound play for close door, -- optional
protected = false, protected = false, -- If true, only placer can open the door (locked for others)
^ If true, only placer can open the door (locked for others)
} ###Trapdoor definition
#Trapdoor definition
----------------
{
description = "Trapdoor description", description = "Trapdoor description",
inventory_image = "mod_trapdoor_inv.png", inventory_image = "mod_trapdoor_inv.png",
groups = {choppy = 1}, groups = {choppy = 2},
tile_front = "doors_trapdoor.png", tile_front = "doors_trapdoor.png", -- the texture for the front and back of the trapdoor
^ the texture for the front and back of the trapdoor tile_side = "doors_trapdoor_side.png", -- the tiles of the four side parts of the trapdoor
tile_side: "doors_trapdoor_side.png",
^ the tiles of the four side parts of the trapdoor
sounds = default.node_sound_wood_defaults(), -- optional sounds = default.node_sound_wood_defaults(), -- optional
sound_open = sound play for open door, -- optional sound_open = sound play for open door, -- optional
sound_close = sound play for close door, -- optional sound_close = sound play for close door, -- optional
protected = false, protected = false, -- If true, only placer can open the door (locked for others)
^ If true, only placer can open the door (locked for others)
}
Fence API Fence API
--------- ---------
Allows creation of new fences with "fencelike" drawtype. Allows creation of new fences with "fencelike" drawtype.
default.register_fence(name, item definition) `default.register_fence(name, item definition)`
^ Registers a new fence. Custom fields texture and material are required, as
^ are name and description. The rest is optional. You can pass most normal Registers a new fence. Custom fields texture and material are required, as
^ nodedef fields here except drawtype. The fence group will always be added are name and description. The rest is optional. You can pass most normal
^ for this node. nodedef fields here except drawtype. The fence group will always be added
for this node.
###fence definition
#fence definition
name = "default:fence_wood", name = "default:fence_wood",
description = "Wooden Fence", description = "Wooden Fence",
texture = "default_wood.png", texture = "default_wood.png",
material = "default:wood", material = "default:wood",
groups = {choppy=2, oddly_breakable_by_hand = 2, flammable = 2}, groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
sounds = default.node_sound_wood_defaults(), sounds = default.node_sound_wood_defaults(),
Farming API Farming API
----------- -----------
The farming API allows you to easily register plants and hoes. The farming API allows you to easily register plants and hoes.
farming.register_hoe(name, hoe definition) `farming.register_hoe(name, hoe definition)`
-> Register a new hoe, see [#hoe definition] * Register a new hoe, see [#hoe definition]
farming.register_plant(name, Plant definition) `farming.register_plant(name, Plant definition)`
-> Register a new growing plant, see [#Plant definition] * Register a new growing plant, see [#Plant definition]
#Hoe Definition ###Hoe Definition
---------------
{
description = "", -- Description for tooltip {
inventory_image = "unknown_item.png", -- Image to be used as wield- and inventory image description = "", -- Description for tooltip
max_uses = 30, -- Uses until destroyed inventory_image = "unknown_item.png", -- Image to be used as wield- and inventory image
material = "", -- Material for recipes max_uses = 30, -- Uses until destroyed
recipe = { -- Craft recipe, if material isn't used material = "", -- Material for recipes
{"air", "air", "air"}, recipe = { -- Craft recipe, if material isn't used
{"", "group:stick"}, {"air", "air", "air"},
{"", "group:stick"}, {"", "group:stick"},
{"", "group:stick"},
}
} }
}
#Plant definition ###Plant definition
-----------------
{ {
description = "", -- Description of seed item description = "", -- Description of seed item
inventory_image = "unknown_item.png", -- Image to be used as seed's wield- and inventory image inventory_image = "unknown_item.png", -- Image to be used as seed's wield- and inventory image
steps = 8, -- How many steps the plant has to grow, until it can be harvested steps = 8, -- How many steps the plant has to grow, until it can be harvested
^ Always provide a plant texture for each step, format: modname_plantname_i.png (i = stepnumber) -- ^ Always provide a plant texture for each step, format: modname_plantname_i.png (i = stepnumber)
minlight = 13, -- Minimum light to grow minlight = 13, -- Minimum light to grow
maxlight = default.LIGHT_MAX -- Maximum light to grow maxlight = default.LIGHT_MAX -- Maximum light to grow
} }
Screwdriver API Screwdriver API
--------------- ---------------
The screwdriver API allows you to control a node's behaviour when a screwdriver is used on it. The screwdriver API allows you to control a node's behaviour when a screwdriver is used on it.
To use it, add the on_screwdriver function to the node definition. To use it, add the `on_screwdriver` function to the node definition.
on_rotate(pos, node, user, mode, new_param2)
^ pos: position of the node that the screwdriver is being used on `on_rotate(pos, node, user, mode, new_param2)`
^ node: that node
^ user: the player who used the screwdriver * `pos` Position of the node that the screwdriver is being used on
^ mode: screwdriver.ROTATE_FACE or screwdriver.ROTATE_AXIS * `node` that node
^ new_param2: the new value of param2 that would have been set if on_rotate wasn't there * `user` The player who used the screwdriver
^ return value: false to disallow rotation, nil to keep default behaviour, true to allow * `mode` screwdriver.ROTATE_FACE or screwdriver.ROTATE_AXIS
* `new_param2` the new value of param2 that would have been set if on_rotate wasn't there
* return value: false to disallow rotation, nil to keep default behaviour, true to allow
it but to indicate that changed have already been made (so the screwdriver will wear out) it but to indicate that changed have already been made (so the screwdriver will wear out)
^ use on_rotate = screwdriver.disallow to always disallow rotation * use `on_rotate = screwdriver.disallow` to always disallow rotation
^ use on_rotate = screwdriver.rotate_simple to allow only face rotation * use `on_rotate = screwdriver.rotate_simple` to allow only face rotation
Stairs API Stairs API
---------- ----------
The stairs API lets you register stairs and slabs and ensures that they are registered the same way as those The stairs API lets you register stairs and slabs and ensures that they are registered the same way as those
delivered with Minetest Game, to keep them compatible with other mods. delivered with Minetest Game, to keep them compatible with other mods.
stairs.register_stair(subname, recipeitem, groups, images, description, sounds) `stairs.register_stair(subname, recipeitem, groups, images, description, sounds)`
-> Registers a stair.
-> subname: Basically the material name (e.g. cobble) used for the stair name. Nodename pattern: "stairs:stair_subname"
-> recipeitem: Item used in the craft recipe, e.g. "default:cobble"
-> groups: see [Known damage and digging time defining groups]
-> images: see [Tile definition]
-> description: used for the description field in the stair's definition
-> sounds: see [#Default sounds]
stairs.register_slab(subname, recipeitem, groups, images, description, sounds) * Registers a stair.
-> Registers a slabs * `subname`: Basically the material name (e.g. cobble) used for the stair name. Nodename pattern: "stairs:stair_subname"
-> subname: Basically the material name (e.g. cobble) used for the stair name. Nodename pattern: "stairs:stair_subname" * `recipeitem`: Item used in the craft recipe, e.g. "default:cobble"
-> recipeitem: Item used in the craft recipe, e.g. "default:cobble" * `groups`: see [Known damage and digging time defining groups]
-> groups: see [Known damage and digging time defining groups] * `images`: see [Tile definition]
-> images: see [Tile definition] * `description`: used for the description field in the stair's definition
-> description: used for the description field in the stair's definition * `sounds`: see [#Default sounds]
-> sounds: see [#Default sounds]
stairs.register_stair_and_slab(subname, recipeitem, groups, images, desc_stair, desc_slab, sounds) `stairs.register_slab(subname, recipeitem, groups, images, description, sounds)`
-> A wrapper for stairs.register_stair and stairs.register_slab
-> Uses almost the same arguments as stairs.register_stair * Registers a slabs
-> desc_stair: Description for stair node * `subname`: Basically the material name (e.g. cobble) used for the stair name. Nodename pattern: "stairs:stair_subname"
-> desc_slab: Description for slab node * `recipeitem`: Item used in the craft recipe, e.g. "default:cobble"
* `groups`: see [Known damage and digging time defining groups]
* `images`: see [Tile definition]
* `description`: used for the description field in the stair's definition
* `sounds`: see [#Default sounds]
`stairs.register_stair_and_slab(subname, recipeitem, groups, images, desc_stair, desc_slab, sounds)`
* A wrapper for stairs.register_stair and stairs.register_slab
* Uses almost the same arguments as stairs.register_stair
* `desc_stair`: Description for stair node
* `desc_slab`: Description for slab node
Xpanes API Xpanes API
---------- ----------
Creates panes that automatically connect to each other Creates panes that automatically connect to each other
xpanes.register_pane(subname, def) `xpanes.register_pane(subname, def)`
-> subname: used for nodename. Result: "xpanes:subname" and "xpanes:subname_{2..15}"
-> def: See [#Pane definition]
#Pane definition * `subname`: used for nodename. Result: "xpanes:subname" and "xpanes:subname_{2..15}"
---------------- * `def`: See [#Pane definition]
{
textures = {"texture_Bottom_top", "texture_left_right", "texture_front_back"}, ###Pane definition
^ More tiles aren't supported
groups = {group = rating}, {
^ Uses the known node groups, see [Known damage and digging time defining groups] textures = {"texture_Bottom_top", "texture_left_right", "texture_front_back"}, -- More tiles aren't supported
sounds = SoundSpec, groups = {group = rating}, -- Uses the known node groups, see [Known damage and digging time defining groups]
^ See [#Default sounds] sounds = SoundSpec, -- See [#Default sounds]
recipe = {{"","","","","","","","",""}}, recipe = {{"","","","","","","","",""}}, -- Recipe field only
^ Recipe field only }
}
Raillike definitions Raillike definitions
-------------------- --------------------
The following nodes use the group `connect_to_raillike` and will only connect to The following nodes use the group `connect_to_raillike` and will only connect to
raillike nodes within this group and the same group value. raillike nodes within this group and the same group value.
Use `minetest.raillike_group(<Name>)` to get the group value. Use `minetest.raillike_group(<Name>)` to get the group value.
| Node type | Raillike group name | Node type | Raillike group name
+-----------------------+-------------------- |-----------------------|---------------------
| default:rail | "rail" | default:rail | "rail"
| tnt:gunpowder | "gunpowder" | tnt:gunpowder | "gunpowder"
| tnt:gunpowder_burning | "gunpowder" | tnt:gunpowder_burning | "gunpowder"
@ -260,168 +267,188 @@ of your node.
Default sounds Default sounds
-------------- --------------
Sounds inside the default table can be used within the sounds field of node definitions. Sounds inside the default table can be used within the sounds field of node definitions.
default.node_sound_defaults() * `default.node_sound_defaults()`
default.node_sound_stone_defaults() * `default.node_sound_stone_defaults()`
default.node_sound_dirt_defaults() * `default.node_sound_dirt_defaults()`
default.node_sound_sand_defaults() * `default.node_sound_sand_defaults()`
default.node_sound_wood_defaults() * `default.node_sound_wood_defaults()`
default.node_sound_leaves_defaults() * `default.node_sound_leaves_defaults()`
default.node_sound_glass_defaults() * `default.node_sound_glass_defaults()`
Default constants Default constants
----------------- -----------------
default.LIGHT_MAX
^ The maximum light level (see [Node definition] light_source) `default.LIGHT_MAX` The maximum light level (see [Node definition] light_source)
Player API Player API
---------- ----------
The player API can register player models and update the player's appearence The player API can register player models and update the player's appearence
default.player_register_model(name, def) `default.player_register_model(name, def)`
^ Register a new model to be used by players.
-> name: model filename such as "character.x", "foo.b3d", etc.
-> def: See [#Model definition]
default.registered_player_models[name] * Register a new model to be used by players.
^ Get a model's definition * name: model filename such as "character.x", "foo.b3d", etc.
-> see [#Model definition] * def: See [#Model definition]
default.player_set_model(player, model_name) `default.registered_player_models[name]`
^ Change a player's model
-> player: PlayerRef
-> model_name: model registered with player_register_model()
default.player_set_animation(player, anim_name [, speed]) * Get a model's definition
^ Applies an animation to a player * see [#Model definition]
-> anim_name: name of the animation.
-> speed: frames per second. If nil, default from the model is used
default.player_set_textures(player, textures) `default.player_set_model(player, model_name)`
^ Sets player textures
-> player: PlayerRef * Change a player's model
-> textures: array of textures * `player`: PlayerRef
^ If <textures> is nil, the default textures from the model def are used * `model_name`: model registered with player_register_model()
`default.player_set_animation(player, anim_name [, speed])`
* Applies an animation to a player
* anim_name: name of the animation.
* speed: frames per second. If nil, default from the model is used
`default.player_set_textures(player, textures)`
* Sets player textures
* `player`: PlayerRef
* `textures`: array of textures, If `textures` is nil, the default textures from the model def are used
default.player_get_animation(player) default.player_get_animation(player)
^ Returns a table containing fields "model", "textures" and "animation".
^ Any of the fields of the returned table may be nil.
-> player: PlayerRef
Model Definition * Returns a table containing fields `model`, `textures` and `animation`.
---------------- * Any of the fields of the returned table may be nil.
{ * player: PlayerRef
animation_speed = 30, -- Default animation speed, in FPS.
textures = {"character.png", }, -- Default array of textures. ###Model Definition
visual_size = {x = 1, y = 1}, -- Used to scale the model.
animations = { {
-- <anim_name> = {x = <start_frame>, y = <end_frame>}, animation_speed = 30, -- Default animation speed, in FPS.
foo = {x = 0, y = 19}, textures = {"character.png", }, -- Default array of textures.
bar = {x = 20, y = 39}, visual_size = {x = 1, y = 1}, -- Used to scale the model.
animations = {
-- <anim_name> = {x = <start_frame>, y = <end_frame>},
foo = {x = 0, y = 19},
bar = {x = 20, y = 39},
-- ... -- ...
}, },
} }
Leafdecay Leafdecay
--------- ---------
To enable leaf decay for a node, add it to the "leafdecay" group.
The rating of the group determines how far from a node in the group "tree" To enable leaf decay for a node, add it to the `leafdecay` group.
The rating of the group determines how far from a node in the group `tree`
the node can be without decaying. the node can be without decaying.
If param2 of the node is ~= 0, the node will always be preserved. Thus, if If `param2` of the node is ~= 0, the node will always be preserved. Thus, if
the player places a node of that kind, you will want to set param2=1 or so. the player places a node of that kind, you will want to set `param2 = 1` or so.
The function default.after_place_leaves can be set as after_place_node of a node The function `default.after_place_leaves` can be set as `after_place_node of a node`
to set param2 to 1 if the player places the node (should not be used for nodes to set param2 to 1 if the player places the node (should not be used for nodes
that use param2 otherwise (e.g. facedir)). that use param2 otherwise (e.g. facedir)).
If the node is in the leafdecay_drop group then it will always be dropped as an If the node is in the `leafdecay_drop` group then it will always be dropped as an
item. item.
Dyes Dyes
---- ----
To make recipes that will work with any dye ever made by anybody, define To make recipes that will work with any dye ever made by anybody, define
them based on groups. You can select any group of groups, based on your need for them based on groups. You can select any group of groups, based on your need for
amount of colors. amount of colors.
#Color groups ###Color groups
-------------
Base color groups:
- basecolor_white
- basecolor_grey
- basecolor_black
- basecolor_red
- basecolor_yellow
- basecolor_green
- basecolor_cyan
- basecolor_blue
- basecolor_magenta
Extended color groups (* = equal to a base color): Base color groups:
* excolor_white
- excolor_lightgrey * `basecolor_white`
* excolor_grey * `basecolor_grey`
- excolor_darkgrey * `basecolor_black`
* excolor_black * `basecolor_red`
* excolor_red * `basecolor_yellow`
- excolor_orange * `basecolor_green`
* excolor_yellow * `basecolor_cyan`
- excolor_lime * `basecolor_blue`
* excolor_green * `basecolor_magenta`
- excolor_aqua
* excolor_cyan Extended color groups ( * means also base color )
- excolor_sky_blue
* excolor_blue * `excolor_white` *
- excolor_violet * `excolor_lightgrey`
* excolor_magenta * `excolor_grey` *
- excolor_red_violet * `excolor_darkgrey`
* `excolor_black` *
* `excolor_red` *
* `excolor_orange`
* `excolor_yellow` *
* `excolor_lime`
* `excolor_green` *
* `excolor_aqua`
* `excolor_cyan` *
* `excolor_sky_blue`
* `excolor_blue` *
* `excolor_violet`
* `excolor_magenta` *
* `excolor_red_violet`
The whole unifieddyes palette as groups: The whole unifieddyes palette as groups:
- unicolor_<excolor>
* `unicolor_<excolor>`
For the following, no white/grey/black is allowed: For the following, no white/grey/black is allowed:
- unicolor_medium_<excolor>
- unicolor_dark_<excolor> * `unicolor_medium_<excolor>`
- unicolor_light_<excolor> * `unicolor_dark_<excolor>`
- unicolor_<excolor>_s50 * `unicolor_light_<excolor>`
- unicolor_medium_<excolor>_s50 * `unicolor_<excolor>_s50`
- unicolor_dark_<excolor>_s50 * `unicolor_medium_<excolor>_s50`
* `unicolor_dark_<excolor>_s50`
Example of one shapeless recipe using a color group: Example of one shapeless recipe using a color group:
minetest.register_craft({
type = "shapeless",
output = '<mod>:item_yellow',
recipe = {'<mod>:item_no_color', 'group:basecolor_yellow'},
})
#Color lists minetest.register_craft({
------------ type = "shapeless",
dye.basecolors output = '<mod>:item_yellow',
^ Array containing the names of available base colors recipe = {'<mod>:item_no_color', 'group:basecolor_yellow'},
})
dye.excolors ###Color lists
^ Array containing the names of the available extended colors
* `dye.basecolors` are an array containing the names of available base colors
* `dye.excolors` are an array containing the names of the available extended colors
Trees Trees
----- -----
default.grow_tree(pos, is_apple_tree)
^ Grows a mgv6 tree or apple tree at pos
default.grow_jungle_tree(pos) * `default.grow_tree(pos, is_apple_tree)`
^ Grows a mgv6 jungletree at pos * Grows a mgv6 tree or apple tree at pos
default.grow_pine_tree(pos) * `default.grow_jungle_tree(pos)`
^ Grows a mgv6 pinetree at pos * Grows a mgv6 jungletree at pos
default.grow_new_apple_tree(pos) * `default.grow_pine_tree(pos)`
^ Grows a new design apple tree at pos * Grows a mgv6 pinetree at pos
default.grow_new_jungle_tree(pos) * `default.grow_new_apple_tree(pos)`
^ Grows a new design jungle tree at pos * Grows a new design apple tree at pos
default.grow_new_pine_tree(pos) * `default.grow_new_jungle_tree(pos)`
^ Grows a new design pine tree at pos * Grows a new design jungle tree at pos
default.grow_new_acacia_tree(pos) * `default.grow_new_pine_tree(pos)`
^ Grows a new design acacia tree at pos * Grows a new design pine tree at pos
* `default.grow_new_acacia_tree(pos)`
* Grows a new design acacia tree at pos
* `default.grow_new_aspen_tree(pos)`
* Grows a new design aspen tree at pos
* `default.grow_new_snowy_pine_tree(pos)`
* Grows a new design snowy pine tree at pos