Drone capacities depends on the user’s codelevel which can be set with the /codelevel
command (see below). High codelevels should be given carefully to users as program could overload the server and crash it. Default codelevel is 1
.
codelevel | 1 (limited) | 2 (basic) | 3 (privileged) | 4 (trusted) | description |
---|---|---|---|---|---|
max_calls | 1e6 | 1e7 | 1e8 | 1e9 | max number of calls (function calls and loops) |
max_volume | 1e5 | 1e6 | 1e7 | 1e8 | max build volume (1 block = 1m³) |
max_commands | 1e4 | 1e5 | 1e6 | 1e7 | max drone commands (movements, constructions, checkpoints, etc) |
max_distance | 150 | 300 | 700 | 1500 | max drone distance from drone spawn-point |
max_dimension | 15 | 30 | 70 | 150 | max dimension of shapes (either width, length, height or radius) |
commands_before_yield | 1 | 10 | 20 | 40 | number of codeblock commands before releasing control to Minetest |
calls_before_yield | 1 | 100 | 250 | 600 | number of function/loop calls before releasing control to Minetest |
Codelevel definitions can be modified by editing lib/config.lua
.
/codelevel <playername> <1-4>
Set the codelevel of an user. Requires the codeblock
privilege (/grant <user> codeblock
). <playername>
defautls to the user name if ommited.
/codegenerate
Generates the example programs for the user issuing the command.
The coordinate system used is relative to the player. When the drone is placed it is oriented in the player direction, going forwards. All movements on the x
, y
and z
axis are always relative to the drone direction.
The parameter n
denotes an integer describing how much to move in the specified direction axis. A negative value can be used to represent movement on the oposite direction, that is, up(-1)
is equivalent ot down(1)
. The default value of n
is 1
and can be ommited (forward()
is equivalent to forward(1)
)
(n)
up(n)
down(n)
forward(n)
back(n)
left(n)
rightmove(n_right, n_up, n_forward) -- each parameter defaults to zero
Example: move(-5, 1, 3)
()
turn_right()
turn_left(n_quarters_anti_clockwise) turn
Example: turn(2)
Checkpoints allow to save the current position of the drone to use it later. Checkpoints are remembered by their name
which must be a string. A default checkpoint with name spawn
is associated to the drone spawn position.
(name) -- creates a checkpoint
save(name, n_right, n_up, n_forward) -- go back to a checkpoint go
Example:
('place1')
save('place2')
save() -- same as go('spawn', 0, 0, 0)
go('place1') -- same as go('place1', 0, 0, 0)
go('place2', 10, -50, 1) -- go to checkpoint with offsets go
Placing blocks and building shapes requires a block
parameter, which can be obtained using the following tables.
blocks
String-indexed table with the following values:
, stone, cobble, stonebrick, stone_block, mossycobble, desert_stone, desert_cobble, desert_stonebrick, desert_stone_block, sandstone, sandstonebrick, sandstone_block, desert_sandstone, desert_sandstone_brick, desert_sandstone_block, silver_sandstone, silver_sandstone_brick, silver_sandstone_block, obsidian, obsidianbrick, obsidian_block, dirt, dirt_with_grass, dirt_with_grass_footsteps, dirt_with_dry_grass, dirt_with_snow, dirt_with_rainforest_litter, dirt_with_coniferous_litter, dry_dirt, dry_dirt_with_dry_grass, permafrost, permafrost_with_stones, permafrost_with_moss, clay, snowblock, ice, cave_ice, tree, wood, leaves, jungletree, junglewood, jungleleaves, pine_tree, pine_wood, pine_needles, acacia_tree, acacia_wood, acacia_leaves, aspen_tree, aspen_wood, aspen_leaves, stone_with_coal, coalblock, stone_with_iron, steelblock, stone_with_copper, copperblock, stone_with_tin, tinblock, bronzeblock, stone_with_gold, goldblock, stone_with_mese, mese, stone_with_diamond, diamondblock, cactus, bush_leaves, acacia_bush_leaves, pine_bush_needles, bookshelf, glass, obsidian_glass, brick, meselamp air
Example: local b = blocks.glass
plants
String-indexed table with the following values:
, apple, junglesapling, emergent_jungle_sapling, pine_sapling, acacia_sapling, aspen_sapling, large_cactus_seedling, dry_shrub, grass_1, grass_2, grass_3, grass_4, grass_5, dry_grass_1, dry_grass_2, dry_grass_3, dry_grass_4, dry_grass_5, fern_1, fern_2, fern_3, marram_grass_1, marram_grass_2, marram_grass_3, bush_stem, bush_sapling, acacia_bush_stem, acacia_bush_sapling, pine_bush_stem, pine_bush_needles, pine_bush_sapling sapling
Example: local p = plants.pine_sapling
wools
String-indexed table with the following values:
, grey, dark_grey, black, violet, blue, cyan, dark_green, green, yellow, brown, orange, red, magenta, pink white
Example: local rw = wools.red
iwools
Integer-indexed table, without white, black and greys, in pseudo-rainbow order (red
, brown
, orange
, yellow
, green
, dark_green
, cyan
, blue
, violet
, magenta
, pink
), with the following values:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
Example: local orange = iwools[3]
.block()
random.plant()
random.wool() random
() get_block
Functions to place individual blocks.
(block) -- place one block at drone position
place(n_right, n_up, n_forward, block, checkpoint) -- place one block relative to a checkpoint place_relative
Example:
() -- equivalent to place(blocks.stone)
place(blocks.brick)
place('place2')
save(1, 0, 0, wools.blue, 'place2')
place_relative(0, 1, 0, wools.green) -- equivalent to place_relative(0, 1, 0, wools.green, 'spawn')
place_relative(0, 1, 0) -- equivalent to place_relative(0, 1, 0, blocks.stone, 'spawn') place_relative
Shapes are placed such that the drone position corresponds to the back-bottom-left of the shape (a cube will extend to the right-up-forward direction). width
extends in the right direction, height
extends in the up direction, length
extends in the forward direction and radius
extends in the remaining directions. hollow
is false
by default and the default block
is stone.
(width, height, length, block, hollow)
cube(radius, block, hollow)
sphere(radius, block, hollow)
dome(height, radius, block, hollow) -- short for vertical.cylinder
cylinder.cylinder(height, radius, block, hollow)
vertical.cylinder(length, radius, block, hollow) horizontal
Example:
(10, 10, 10, blocks.leaves) -- short for cube(10, 10, 10, blocks.leaves, false) cube
These variants of the shapes are placed such that the drone position corresponds to the center of the shape. For the dome it corresponds to the bottom of the dome and its center for the other coordinates. width
extends in the left-right direction, height
extends in the up-down direction, length
extends in the forward-backward direction and radius
extends in the remaining directions.
.cube(width, height, length, block, hollow)
centered.sphere(radius, block, hollow)
centered.dome(radius, block, hollow)
centered.cylinder(height, radius, block, hollow) -- short for centered.vertical.cylinder
centered.vertical.cylinder(height, radius, block, hollow)
centered.horizontal.cylinder(length, radius, block, hollow) centered
([m [, n]])
random(x, num)
round(x) -- short for round(x, 0) (integer rounding)
round0(x)
ceil(x)
floor(x)
deg(x)
rad(x)
exp(x)
log(x, ...)
max(x, ...)
min(x)
abs(x, y)
pow(x)
sqrt(x)
sin(x)
asin(x)
sinh(x)
cos(x)
acos(x)
cosh(x)
tan(x)
atan(x, y)
atan2(x)
tanh
pi e
See documentation here (replacing vector3
by vector
).
Example:
local u = vector(1, 2, 3)
local v = vector(4, 5, 6)
local w = (5 * u + u:dot(v) * u:cross(v:scale(5))):norm()
local x, y, z = w:unpack()
print(message) -- print `message` in minetest chat
error(message) -- stops the program and prints `message`
ipairs(table)
pairs(table)
.randomizer(t) -- returns a table randomizer table
Example:
local my_random = table.randomizer({blocks.ice, blocks.brick})
for i = 1, 10 do
(my_random())
place()
upend