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Difference between revisions of "Lua script examples"

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(→‎Generators: Creature tutorial scripts)
m (Add version switcher, as it's version-specific)
 
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{{av}}
 
{{Modding}}
 
{{Modding}}
 
{{Main|Lua scripting}}
 
{{Main|Lua scripting}}
Line 210: Line 211:
 
===New divine metals===
 
===New divine metals===
  
−
Many of the tables used by vanilla procedural objects are global and thus can be added to or overwritten by mods. You can add new metal descriptions for divine metal pretty easily, for example:
+
Many of the tables used by vanilla procedural objects are global, and thus can be added to or overwritten by mods. You can add new metal descriptions for divine metal pretty easily, for example:
  
 
{{Scriptdata
 
{{Scriptdata
Line 300: Line 301:
 
===Remove default functions===
 
===Remove default functions===
  
−
Just as easily as you can add new functions and table entries, you can overwrite default entries so that they cannot generate. This snippet removes the default forgotten beasts.
+
Just as easily as new functions and table entries can be added, default entries can be overwritten so that they cannot generate. This snippet removes the default forgotten beasts.
  
 
See [[Lua functions#Generation Tables]] for a list of the tables the default functions are stored in.
 
See [[Lua functions#Generation Tables]] for a list of the tables the default functions are stored in.
Line 357: Line 358:
 
You don't have to be limited to the vanilla list of random creature variants. Mods can add new kinds of random creature profiles, materials, etc that can be seamlessly integrated into how it generates creatures.  
 
You don't have to be limited to the vanilla list of random creature variants. Mods can add new kinds of random creature profiles, materials, etc that can be seamlessly integrated into how it generates creatures.  
  
−
This script generates a single creature based on a [[Wiki:Eurypterid|eurypterid]]. It has a unique RCP, set in the function itself.
+
This script generates a single creature based on a [[Wikipedia:Eurypterid|eurypterid]]. It has a unique RCP, set in the function itself.
  
 
{{Scriptdata
 
{{Scriptdata
Line 432: Line 433:
  
 
water_based_random_creature.EURYPTERID=true
 
water_based_random_creature.EURYPTERID=true
 +
}}
 +
 +
===Werebugs===
 +
 +
You can make a custom function to determine what RCPs are available to a given creature.
 +
 +
These scripts are for an arthropoid version of a [[werebeast]].
 +
* ``arthropod_rcp`` is a list of RCP keys which fit this theme (plus a few worms on there for fun), which the creature function rolls on to pick its form.
 +
* ``is_bloodsucking_by_key``, along with ``rcp.must_suck_blood_through_proboscis`` and ``rcp.must_suck_blood_through_mouth`` are checked to assign {{token|BLOODSUCKER}} to it, which allows certain creature types to exhibit vampiric behavior if their berserk rampage wasn't enough [[fun]].
 +
 +
Otherwise, the function should work the same as vanilla werebeasts, generating an associated [[Interaction token|major curse]] in the same way and becoming "twisted into humanoid form" (at the expense of their additional limbs).
 +
 +
{{Scriptdata
 +
|title=arthropod_rcp
 +
|script=local arthropod_rcp = {
 +
"ARACHNID_MITE",
 +
"ARACHNID_SCORPION",
 +
"ARACHNID_SPIDER",
 +
"ARACHNID_TARANTULA",
 +
"ARACHNID_TICK",
 +
"CRUSTACEAN_CRAB",
 +
"CRUSTACEAN_LOBSTER",
 +
"CRUSTACEAN_SHRIMP",
 +
"INSECT_ANT",
 +
"INSECT_ANTLION",
 +
"INSECT_APHID",
 +
"INSECT_BEE",
 +
"INSECT_BUTTERFLY",
 +
"INSECT_CADDISFLY",
 +
"INSECT_CATERPILLAR",
 +
"INSECT_CICADA",
 +
"INSECT_COCKROACH",
 +
"INSECT_CRICKET",
 +
"INSECT_DAMSELFLY",
 +
"INSECT_DARKLING_BEETLE",
 +
"INSECT_DRAGONFLY",
 +
"INSECT_EARWIG",
 +
"INSECT_FIREFLY",
 +
"INSECT_FLEA",
 +
"INSECT_FLY",
 +
"INSECT_GRASSHOPPER",
 +
"INSECT_HORNET",
 +
"INSECT_LACEWING",
 +
"INSECT_LADYBUG",
 +
"INSECT_LOUSE",
 +
"INSECT_MAGGOT",
 +
"INSECT_MANTIS",
 +
"INSECT_MAYFLY",
 +
"INSECT_MOSQUITO",
 +
"INSECT_MOTH",
 +
"INSECT_SILVERFISH",
 +
"INSECT_SCARAB_BEETLE",
 +
"INSECT_SCORPIONFLY",
 +
"INSECT_SNAKEFLY",
 +
"INSECT_STONEFLY",
 +
"INSECT_TERMITE",
 +
"INSECT_THRIPS",
 +
"INSECT_WASP",
 +
"INSECT_WEEVIL",
 +
"NEMATODE",
 +
"LEECH",
 +
}
 +
}}
 +
{{Scriptdata
 +
|title=is_bloodsucking_by_key
 +
|script=local is_bloodsucking_by_key = {
 +
ARACHNID_MITE=true,
 +
ARACHNID_TICK=true,
 +
INSECT_EARWIG=true,--some are parasitic
 +
INSECT_FLEA=true,
 +
INSECT_LOUSE=true,
 +
INSECT_MAGGOT=true,
 +
INSECT_THRIPS=true,--no bloodsucking reported, but does bite humans
 +
NEMATODE=true,
 +
}
 +
}}
 +
{{Scriptdata
 +
|title=creatures.night_creature.werebeast.werebug
 +
|script=creatures.night_creature.werebeast.werebug=function(tok)
 +
local lines={}
 +
local options={
 +
spheres={
 +
CHAOS=true,
 +
ANIMALS=true,
 +
NIGHT=true,
 +
MOON=true
 +
},
 +
always_glowing_eyes=true,
 +
use_werebeast_pcg=true, --use them if werebug sprites somehow exist
 +
animal_coloring_allowed=true,
 +
no_tweak=true,
 +
material_weakness=true,
 +
prioritize_bite=true,
 +
force_ichor=true,
 +
token=tok
 +
}
 +
options.night_creature_agile_pref=true
 +
night_creature_universals(lines,options)
 +
lines[#lines+1]="[NIGHT_CREATURE_HUNTER]"
 +
lines[#lines+1]="[CAN_LEARN]"
 +
lines[#lines+1]="[CAN_SPEAK]"
 +
lines[#lines+1]="[NO_GENDER]"
 +
lines[#lines+1]="[BONECARN]"
 +
lines[#lines+1]="[CRAZED]"
 +
if options.night_creature_strength_pref then
 +
lines[#lines+1]="[PHYS_ATT_RANGE:STRENGTH:1000:1250:1500:2000:2250:2500:3000]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:AGILITY:450:550:700:750:800:850:900]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:TOUGHNESS:850:900:950:1000:1050:1100:1150]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:ENDURANCE:850:900:950:1000:1050:1100:1150]"
 +
options.special_walk_speed=1000
 +
elseif options.night_creature_agile_pref then
 +
lines[#lines+1]="[PHYS_ATT_RANGE:STRENGTH:450:550:700:750:800:850:900]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:AGILITY:1000:1250:1500:2000:2250:2500:3000]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:TOUGHNESS:850:900:950:1000:1050:1100:1150]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:ENDURANCE:850:900:950:1000:1050:1100:1150]"
 +
options.special_walk_speed=800;
 +
elseif options.night_creature_strength_agile_pref then
 +
lines[#lines+1]="[PHYS_ATT_RANGE:STRENGTH:1000:1150:1250:1500:2000:2250:2500]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:AGILITY:1000:1150:1250:1500:2000:2250:2500]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:TOUGHNESS:850:900:950:1000:1050:1100:1150]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:ENDURANCE:850:900:950:1000:1050:1100:1150]"
 +
options.special_walk_speed=850;
 +
end
 +
lines[#lines+1]="[PHYS_ATT_RANGE:RECUPERATION:450:1050:1150:1250:1350:1550:2250]"
 +
lines[#lines+1]="[PHYS_ATT_RANGE:DISEASE_RESISTANCE:700:1300:1400:1500:1600:1800:2500]"
 +
lines[#lines+1]="[MENT_ATT_RANGE:ANALYTICAL_ABILITY:1250:1500:1750:2000:2500:3000:5000]"
 +
lines[#lines+1]="[MENT_ATT_RANGE:FOCUS:1250:1500:1750:2000:2500:3000:5000]"
 +
lines[#lines+1]="[MENT_ATT_RANGE:WILLPOWER:1250:1500:1750:2000:2500:3000:5000]"
 +
lines[#lines+1]="[MENT_ATT_RANGE:PATIENCE:0:333:666:1000:2333:3666:5000]"
 +
lines[#lines+1]="[MENT_ATT_RANGE:MEMORY:1250:1500:1750:2000:2500:3000:5000]"
 +
lines[#lines+1]="[MENT_ATT_RANGE:LINGUISTIC_ABILITY:450:1050:1150:1250:1350:1550:2250]"
 +
lines[#lines+1]="[MENT_ATT_RANGE:MUSICALITY:0:333:666:1000:2333:3666:5000]"
 +
lines[#lines+1]="[MENT_ATT_RANGE:SOCIAL_AWARENESS:700:1300:1400:1500:1600:1800:2500]"
 +
lines[#lines+1]="[PERSONALITY:BASHFUL:0:0:0]"
 +
lines[#lines+1]="[PERSONALITY:STRESS_VULNERABILITY:0:0:0]"
 +
lines[#lines+1]="[PERSONALITY:FRIENDLINESS:0:0:0]"
 +
lines[#lines+1]="[PERSONALITY:DISDAIN_ADVICE:100:100:100]"
 +
lines[#lines+1]="[PERSONALITY:CHEER_PROPENSITY:0:0:0]"
 +
lines[#lines+1]="[PERSONALITY:GRATITUDE:0:0:0]"
 +
lines[#lines+1]="[PERSONALITY:TRUST:0:0:0]"
 +
lines[#lines+1]="[PERSONALITY:ALTRUISM:0:0:0]"
 +
lines[#lines+1]="[PERSONALITY:CRUELTY:100:100:100]"
 +
 +
add_regular_tokens(lines,options)
 +
populate_sphere_info(lines,options)
 +
lines[#lines+1]="[NATURAL_SKILL:WRESTLING:6]"
 +
lines[#lines+1]="[NATURAL_SKILL:BITE:6]"
 +
lines[#lines+1]="[NATURAL_SKILL:GRASP_STRIKE:6]"
 +
lines[#lines+1]="[NATURAL_SKILL:STANCE_STRIKE:6]"
 +
lines[#lines+1]="[NATURAL_SKILL:MELEE_COMBAT:6]"
 +
lines[#lines+1]="[NATURAL_SKILL:DODGING:6]"
 +
lines[#lines+1]="[NATURAL_SKILL:SITUATIONAL_AWARENESS:6]"
 +
lines[#lines+1]="[NATURAL_SKILL:SNEAK:20]"
 +
 +
lines[#lines+1]="[DIFFICULTY:3]"
 +
lines[#lines+1]="[LAIR:SIMPLE_BURROW:50]"
 +
-- pick a random bug RCP, there's no overlap with the mammal/reptile standard werebeasts
 +
finalize_random_creature_types() -- good practice to run before rolling on it
 +
local rcp_key = pick_random_no_replace(arthropod_rcp)
 +
local rcp=random_creature_types[rcp_key]
 +
 +
local custom_desc_str = "it is crazed for blood and flesh"
 +
-- make them also vampires if they suck blood
 +
if rcp.must_suck_blood_through_proboscis or rcp.must_suck_blood_through_mouth or is_bloodsucking_by_key[rcp_key] then
 +
lines[#lines+1]="[BLOODSUCKER]"
 +
custom_desc_str = "it is crazed for warm blood"
 +
end
 +
-- This sort of process should be fully generalized
 +
-- to all creatures you want to have bespoke associated interactions
 +
-- for example, you can have a blessing that allows a sort of
 +
-- uncrazed transformation into some sort of bespoke
 +
-- generated thing--at least, hopefully it's robust enough for that
 +
local choice=generate_from_list(werebeast_origin_interactions,tok,rcp.name_string,options)
 +
map_merge(options,choice.options)
 +
local werebeast_choice_raws=choice.interaction or choice.raws
 +
raws.register_interactions(werebeast_choice_raws)
 +
add_body_size(lines,math.max(rcp.min_size,80000+trandom(11)*1000),options)
 +
lines[#lines+1]="[CREATURE_TILE:165]" --Ñ
 +
options.forced_color={
 +
f=6,
 +
b=0,
 +
br=1
 +
}
 +
options.custom_desc_func=function(options)
 +
return custom_desc_str
 +
end
 +
build_procgen_creature(rcp,lines,options)
 +
lines[#lines+1]="[GO_TO_START]"
 +
-- remove second words like " beetle", etc from the end
 +
local short_name = rcp.name_string:gsub("%s(%w+)$","")
 +
local name_str="were"..short_name..":were"..short_name.."s:were"..short_name.."]"
 +
lines[#lines+1]="[NAME:"..name_str
 +
lines[#lines+1]="[CASTE_NAME:"..name_str
 +
return {raws=lines,weight=1}
 +
end
 
}}
 
}}
  
 
===New forgotten beasts===
 
===New forgotten beasts===
−
You can add new types of forgotten beasts, generating as alternatives when populating the caverns with unique monsters. There are a number of options to interact with shared generation functions.
+
You can add new types of forgotten beasts (or more appropriately, {{token|FEATURE_BEAST}}s). These generate as alternatives when populating the caverns with unique monsters. There are a number of options to interact with shared generation functions.
  
 
Unbidden spirits only appear in dry cave layers, and like "spirit" [[demon]]s, are malevolent floating beings made of gas or dust.
 
Unbidden spirits only appear in dry cave layers, and like "spirit" [[demon]]s, are malevolent floating beings made of gas or dust.
Line 485: Line 681:
 
     -- Weight is a float; all vanilla objects have weight 1
 
     -- Weight is a float; all vanilla objects have weight 1
 
     return {creature=tbl,weight=0.5}
 
     return {creature=tbl,weight=0.5}
 +
end
 +
}}
 +
<br><br>
 +
[[Construct creature|Elementals]] are defined by the material they're made of, using a table of options to set the right properties. In a dry chasm layer, they'll roll on the ``fb_elements`` table, while in a water layer, they'll be a water elemental. Should they ever carry a [[syndrome]], they would inflict [[Wikipedia:Dyscrasia|dyskrasia]].
 +
 +
The most important feature is setting ``options.sphere_rcm`` to a key in ``random_creature_materials``, so fire elementals are made of "FLAME" and earth elementals are made of "ANY_MINERAL".
 +
 +
{{Scriptdata
 +
|title=Elemental
 +
|script=
 +
fb_elements = {
 +
{
 +
name="fire",
 +
rcm="FLAME",
 +
spheres={ FIRE=true },
 +
options={ fire_immune=true }
 +
},
 +
{
 +
name="earth",
 +
rcm="ANY_MINERAL",
 +
rcp_options={ always_flightless=true },
 +
spheres={
 +
EARTH=true,
 +
MINERALS=true
 +
}
 +
},
 +
{
 +
name="air",
 +
rcm="STEAM",
 +
spheres={
 +
WIND=true,
 +
SKY=true
 +
},
 +
options={
 +
always_insubstantial=true,
 +
intangible_flier=true
 +
}
 +
}
 +
}
 +
 +
creatures.fb.elemental=function(layer_type,tok)
 +
local lines={}
 +
local options={
 +
strong_attack_tweak=true,
 +
always_make_uniform=true, --irrelevant due to sphere_rcm
 +
spheres={},
 +
sickness_name="dyskrasia",
 +
token=tok
 +
}
 +
lines=split_to_lines(lines,[[
 +
[FEATURE_BEAST]
 +
[ATTACK_TRIGGER:0:0:2]
 +
[NO_GENDER]
 +
[NO_EAT][NO_DRINK]
 +
[DIFFICULTY:10]
 +
 +
[NATURAL_SKILL:WRESTLING:6]
 +
[NATURAL_SKILL:BITE:6]
 +
[NATURAL_SKILL:GRASP_STRIKE:6]
 +
[NATURAL_SKILL:STANCE_STRIKE:6]
 +
[NATURAL_SKILL:MELEE_COMBAT:6]
 +
[NATURAL_SKILL:DODGING:6]
 +
[NATURAL_SKILL:SITUATIONAL_AWARENESS:6]
 +
[LARGE_PREDATOR]
 +
]])
 +
 +
-- Create a water elemental in water layers, otherwise use another type
 +
local water_elemental = {
 +
name="water",
 +
rcm="WATER",
 +
spheres={WATER=true},
 +
options={do_water=true}
 +
}
 +
local my_element = layer_type==1 and pick_random(fb_elements) or water_elemental
 +
 +
-- Assign propertes from chosen element
 +
map_merge(options.spheres,my_element.spheres)
 +
if my_element.options then map_merge(options,my_element.options) end
 +
 +
add_regular_tokens(lines,options)
 +
lines[#lines+1]=layer_type==0 and "[BIOME:SUBTERRANEAN_WATER]" or "[BIOME:SUBTERRANEAN_CHASM]"
 +
populate_sphere_info(lines,options)
 +
 +
-- Set custom material
 +
options.sphere_rcm=my_element.rcm
 +
-- Build body
 +
local rcp=get_random_creature_profile(options)
 +
-- Set more options on the RCP
 +
if my_element.rcp_options then map_merge(rcp.options,my_element.rcp_options) end
 +
add_body_size(lines,math.max(10000000,rcp.min_size),options)
 +
lines[#lines+1]="[CREATURE_TILE:'E']"
 +
build_procgen_creature(rcp,lines,options)
 +
 +
-- Generate name
 +
local element_name = my_element.name or "glitchstuff"
 +
local name_str = element_name.." elemental:"..element_name.." elemental:"..element_name.."-elemental]"
 +
lines[#lines+1]="[GO_TO_START]"
 +
lines[#lines+1]="[NAME:"..name_str
 +
lines[#lines+1]="[CASTE_NAME:"..name_str
 +
 +
return {raws=lines,weight=1.5}
 
end
 
end
 
}}
 
}}

Latest revision as of 21:19, 21 July 2025

v52.03 · v0.47.05
This article is about the current version of DF.
Note that some content may still need to be updated.

Modding
Tokens
Audio · Biome · Graphics · Tile page · Interaction · Mod info · Plant · Speech · Sphere · Syndrome · World
Body tokens
Body · Body detail plan · Bodygloss · Tissue
Creature tokens
Creature · Creature mannerism · Personality facet · Creature variation · Procedural graphics layer
Descriptor tokens
Descriptor color · Color · Descriptor pattern · Descriptor shape
Entity tokens
Entity · Ethic · Language · Value · Position
Job tokens
Building · Labor · Reaction · Skill · Unit type
Item tokens
Item type · Item definition · Ammo · Armor · Instrument · Tool · Trap component · Weapon
Material tokens
Material type · Material definition · Inorganic material definition
Lua
Scripting · Examples · Functions
v · t · e


Main article: Lua scripting

Snippets of vanilla generation can be found in Category:Lua script pages, and all vanilla scripts can be found in data/vanilla/vanilla_procedural/scripts/.

Helper functions[edit]

Search by reaction class[edit]

This script returns a table of all inorganic materials with a given [REACTION_CLASS]. The mat table also has reaction_product_class, which includes both [MATERIAL_REACTION_PRODUCT] and [ITEM_REACTION_PRODUCT] IDs.

Languages[edit]

Identity language[edit]

This makes a language called GEN_IDENTITY which is like: "Abbey abbeyabbeys the abbey of abbeys" - i.e. it's the "English" language you might see occasionally. It is present in vanilla_procedural and can be used for [TRANSLATION] by default.

Kobold language[edit]

This generates a language made of [UTTERANCES]. This is essentially a proper translation based on the kobold language. Note that the hardcoded utterance() function generates words independently of any existing words in the language, so you may get duplicate words.

Generators[edit]

Non-random generated material[edit]

Here's an example of an object registered through the do_once table. There are no random elements, it is equivalent (save for being [GENERATED]) to an object defined through Material definition tokens and registered through the raws.register_inorganics() function. It also prints itself to the lualog for debugging purposes.



You can register multiple objects at the same time. This script takes a table of color tokens, and makes a metal named after each of them, with a corresponding cheaty adventure reaction.

Random generation[edit]

Here's an example of various DF-specific randomizers in use:

  • trandom() is used to determine how many metals generate this way.
  • utterance() generates utterances from the Kobold language, e.g. "gorsnus", "stogodilmus", "gaylgis"
  • pick_random_no_replace() determines the color from the table, but removes the rolled value so there's no repeats.

New divine metals[edit]

Many of the tables used by vanilla procedural objects are global, and thus can be added to or overwritten by mods. You can add new metal descriptions for divine metal pretty easily, for example:



You can also add alternatives to the default divine metal function, such as one based on the aforementioned kobold metals. Vanilla divine metal uses metal_by_sphere to determine its properties, and is thus valid only if the input sphere has an entry in that table. Note that even if the weights are nominally the same; because it is valid for all input spheres, it will outnumber instances of the more limited vanilla material.

Remove default functions[edit]

Just as easily as new functions and table entries can be added, default entries can be overwritten so that they cannot generate. This snippet removes the default forgotten beasts.

See Lua functions#Generation Tables for a list of the tables the default functions are stored in. 

creatures.fb.default=nil

Basic generated creature[edit]

This is essentially the simplest possible creature. It has no extraordinary options (beyond an association with animals and creation), and each world generates one species from this function. It doesn't have any biome tokens or likewise, so it can only be spawned in the arena, but it is still functional.

A sample output would be "A quadruped composed of flame. It has two narrow tails and it has a regal bearing."

Making your own RCP[edit]

You don't have to be limited to the vanilla list of random creature variants. Mods can add new kinds of random creature profiles, materials, etc that can be seamlessly integrated into how it generates creatures.

This script generates a single creature based on a eurypterid. It has a unique RCP, set in the function itself.



Adding a eurypterid profile to random_creature_profiles allows any creature to access it, if their profile is determined randomly.

This script gives it proper flippers in its body base function. It's also associated with water-based random creatures, so it can potentially generate as an aquatic forgotten beast species.

Other feature variants stored in tables, like materials, attacks, or descriptions, can be added in this way.

Werebugs[edit]

You can make a custom function to determine what RCPs are available to a given creature.

These scripts are for an arthropoid version of a werebeast.

  • arthropod_rcp is a list of RCP keys which fit this theme (plus a few worms on there for fun), which the creature function rolls on to pick its form.
  • is_bloodsucking_by_key, along with rcp.must_suck_blood_through_proboscis and rcp.must_suck_blood_through_mouth are checked to assign [BLOODSUCKER] to it, which allows certain creature types to exhibit vampiric behavior if their berserk rampage wasn't enough fun.

Otherwise, the function should work the same as vanilla werebeasts, generating an associated major curse in the same way and becoming "twisted into humanoid form" (at the expense of their additional limbs).

New forgotten beasts[edit]

You can add new types of forgotten beasts (or more appropriately, [FEATURE_BEAST]s). These generate as alternatives when populating the caverns with unique monsters. There are a number of options to interact with shared generation functions.

Unbidden spirits only appear in dry cave layers, and like "spirit" demons, are malevolent floating beings made of gas or dust.



Elementals are defined by the material they're made of, using a table of options to set the right properties. In a dry chasm layer, they'll roll on the fb_elements table, while in a water layer, they'll be a water elemental. Should they ever carry a syndrome, they would inflict dyskrasia.

The most important feature is setting options.sphere_rcm to a key in random_creature_materials, so fire elementals are made of "FLAME" and earth elementals are made of "ANY_MINERAL".

Tweaking creatures[edit]

This function is run in build_body_from_rcp() right before tweaks are determined. If a generated creature's size is greater than 500,000 Γ (about as much as an elephant), this patch adds [POWER] and the like to make forgotten beasts, titans, etc capable of impersonating deities and ruling civilizations.

Adamantine alloys[edit]

You can add your own arbitrary generated objects, though as of right now there's no way to make settings for them. This allows for some truly wild stuff; here's a fun example: adamantine-metal alloys for every single non-special metal, giving you an average of the properties of them.

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