DF2014:Need

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v50.14 · v0.47.05 · v0.34 · v0.31 · v0.28 · v0.23 This article is about an older version of DF. More Info · V

Needs affect a creature's focus - needs that are unmet for long enough will cause stress, become bad thoughts, and increasingly damage the creature's focus, while sufficiently well-satisfied needs will improve it.

The need system replaces the generalized on break feature of previous versions. Dwarves will sometimes perform jobs that satisfy their personal needs, instead of working for the betterment of the fortress. These personal-fulfilment jobs generally come in two varieties: low-priority (indicated by green text, e.g. Listen to Poetry), or high-priority (magenta text with an exclamation point, e.g. Pray to Lorsïth!). Low-priority jobs may be cancelled to undertake a fortress job. High-priority jobs will not be cancelled for fortress jobs.

Focus

Overall, Urist is unfocused by unmet needs.

Focus affects a dwarf's ability to perform. A dwarf with high focus will work faster and produce better results, while a distracted dwarf will take longer to do everything poorly. Focus is separate and independent of overall mood; a dwarf can be happy even with largely-unmet needs, or unhappy yet focused. However, prolonged insufficiency in meeting needs is a cause for both low focus and bad thoughts. Thus, Focus can, with prudence, be used to predict future mood developments.

Focus represents the percentage of the combined totals of met over unmet need values. The ratio of 1:1 (100%) represents a neutral state.

Focus statuses:

Very focused	+ 140% (?)
Quite focused	120-139% (-149%?)
Focused	101-119%
Untroubled	100%
Unfocused	80-99%
Distracted	...-79% (?)
Badly distracted	(?)

A highly-focused dwarf can receive an effective-skill bonus of up to 50%; a badly distracted dwarf can receive an effective skill penalty of up to 50%.^[1]

Diversity

She is unfocused by a lack of trouble-making.

An individual creature's set of needs and their weights (levels) are affected by personality traits. For instance, a dwarf that values romance will be unfocused "after being unable to make romance", while a dwarf that personally values nature will be unfettered "after seeing animals". Unreligious dwarves will have no need to pray or meditate; dubious and casual worshippers will have low or medium level needs to pray; committed believers will have high level need; and dwarves following multiple deities will have a separate prayer need, with separate level for each of their deities. Proposed weights per need level are 1, 2, 5, and 10.

As expected, high-level needs hold a much larger sway in a dwarf's overall focus than low-level needs. For example, immoderation controls the need for alcohol; dwarves, thus, are more likely to have a need for alcohol than humans (but most of the time won't have a very strong one). A small percentage have no need for alcohol at all, though they'll still slow down without it, due to dwarves' alcohol dependence.

Needs are shown in a dwarf's thoughts and preferences description page, which can be accessed by viewing that dwarf then z, Enter, or from the unit menu with view, Enter.

Degree of fulfillment:

Descriptor	Range
Unfettered	400 to 300
Level-headed	299 to 200
Untroubled	199 to 100
Not distracted	99 to -999
Unfocused	-1,000 to -9,999
Distracted	-10,000 to -99,999
Badly distracted	-100,000 and below

When a need is satisfied, its value is refreshed to maximum (400), regardless of previous value. There is no minimum to how Badly distracted a need can get. A deeper negative value won't further reduce total Focus, which is based on a ratio of all needs' Focus rating.

In the absence of needs rated as "Badly distracted" the focus score is expressed as the ratio of:

[6     * number of Unfettered scores +
 5 1/3 * number of Level-headed scores +
 4 2/3 * number of Untroubled scores +
 4     * number of Not distracted scores +
 3 1/3 * number of Unfocused scores +
 2 2/3 * number of Distracted scores] / (4 * number of scores total)

where the numerator is rounded down to a whole number.

It is currently unknown how "Badly distracted" needs contribute to focus, pending further science, but it is likely that they contribute 2 points each to the numerator.

Fortress actions per need (unconfirmed denoted by (?))

Positive	Negative	Related Belief or Facet	Job
spending time with people	being away from people	GREGARIOUSNESS	Socialize.
drinking	being kept from alcohol	IMMODERATION, SELF-CONTROL	Drink alcohol.
communing with [deity] / meditation	being unable to pray (to [deity])		Pray/meditate in a Temple
staying occupied	being unoccupied	HARD_WORK, ACTIVITY_LEVEL	(assumedly a sufficient amount of fortress tasks*)
doing something creative	doing nothing creative	ARTWORK	Create or perform any artistic work.
doing something exciting	leading an unexciting life	EXCITEMENT_SEEKING	Varied; including at least being in danger or catching live vermin, perform at a tavern or temple.
learning something	not learning anything	KNOWLEDGE, CURIOUS	Gain a rank in any Skill, learn a new subject from written content, watch a skill demonstration at a guildhall, watch a martial demonstration at a training area.
being with family	being away from family	FAMILY	(Socialize with close family members?), gain a sibling, have or sire a child.
being with friends	being away from friends	FRIENDSHIP	(Socialize with friends?)
hearing eloquent speech	being unable to hear eloquent speech	ELOQUENCE	Hear or recite poetry.
upholding tradition	being away from traditions	TRADITION	(Perform any improvisational form?), deliver dwarven justice
self-examination	a lack of introspection	INTROSPECTION	Read anything, compose song or poetry (automatically self-indulgent)
making merry	being unable to make merry	MERRIMENT, HUMOR	Be delighted after witnessing a performance.
practicing a craft	being unable to practice a craft	CRAFTMANSHIP	Craft or improve any item. This includes all actions enabled by the "labor->crafts" menu except strand extraction, items created from masonry, carpentry, jewelry and smithing, a meal cooked, a drink brewed. A mechanic creates a craft only when making a mechanism, an engraver only when engraving a slab. A furnace operator creates a craft when making pearlash.
practicing a martial art	being unable to practice a martial art	MARTIAL_PROWESS	Gain a rank in any combat skill, spar at a training area, or completing practice at an archery target. Individual practice or martial demonstrations do not count.
practicing a skill	being unable to practice a skill	SKILL	(Use relevant skill?)
taking it easy	being unable to take it easy	LEISURE_TIME	(Spend time idle or fulfilling personal desires?), be treated at a hospital.
making romance	being unable to make romance	ROMANCE, LOVE PROPENSITY	Interact with spouse/partner.
seeing animals	being away from animals	NATURE	Animal must also see the dwarf.*
seeing a great beast	being away from great beasts	EXCITEMENT_SEEKING, NATURE, CURIOSITY	(Uncertain, possibly encounter LARGE_ROAMING?)
acquiring something	being unable to acquire something	GREED, COMMERCE	Acquire any trinket (happens automatically when performing a "Store item in stockpile" job on an eligible trade good)
eating a good meal	a lack of decent meals	IMMODERATION	Eating a preferred food (or a preferred alcohol cooked into a meal), or a sufficiently valuable mealv0.47.05.
fighting	being unable to fight	VIOLENT	Partake in a fight or any combat.
causing trouble	a lack of trouble-making	HARMONY, DISCORD	Fight or argue with another.
arguing	being unable to argue	FRIENDLINESS	Argue with another individual.
being extravagant	being unable to be extravagant	IMMODESTY	Wear any item with a quality modifier, create a masterwork or artifact.
wandering	being unable to wander	NATURE, ACTIVITY LEVEL	Complete a fishing, hunting, or plant gathering job.
helping somebody	being unable to help anybody	ALTRUISM, SACRIFICE	Bring water or food to patient/prisoner/animal*; bring wounded units to rest; leading demonstration; being yelled at by unhappy citizens (for relevant nobles.)
thinking abstractly	a lack of abstract thinking	ABSTRACT_INCLINED	Read or write any written content, or compose music or a poem. Playing make-believe. (Using Architect skill does not satisfy this need.)
admiring art	being unable to admire art	ARTWORK	Be exposed to artful furniture, artistic crafts, or engravings. Watch certain performances.

(* See also animal caretaker)

Satisfying any need will usually result in a good thought and a decrease in stress. (If the dwarf has extremely low cheer they may feel NOT ANYTHING).

Adventurer actions per need

Positive	Negative	Related Belief or Facet	Adventurer activity
spending time with people	being away from people	GREGARIOUSNESS	Speak to anyone or reply to greeting. They don't have to be able to reply back.
drinking	being kept from alcohol	IMMODERATION, SELF-CONTROL	Drink alcohol.
communing with [deity] / meditation	being unable to pray (to [deity])		Speak, Pray to <Deity> or begin a performance, give a sermon.
staying occupied	being unoccupied	HARD_WORK, ACTIVITY_LEVEL	Very wide variety of actions.
doing something creative	doing nothing creative	ARTWORK	Perform or compose any work.
doing something exciting	leading an unexciting life	EXCITEMENT_SEEKING	A wide variety of actions.
learning something	not learning anything	KNOWLEDGE, CURIOUS	Gain a rank in any Skill, learn a new subject from written content.
being with family	being away from family	FAMILY	Implemented, but inaccessible without modding. If your character has close family members, this need will be filled by spending time with them (seems to only apply to blood relations). However, there is currently no way to actually do this outside of mods.
being with friends	being away from friends	FRIENDSHIP	Unimplemented.
hearing eloquent speech	being unable to hear eloquent speech	ELOQUENCE	Hear or recite poetry.
upholding tradition	being away from traditions	TRADITION	Perform any improvisational form.
self-examination	a lack of introspection	INTROSPECTION	Read anything, compose song or poetry (automatically self-indulgent), craft a figurine of yourself.
making merry	being unable to make merry	MERRIMENT, HUMOR	Recite any poem.
practicing a craft	being unable to practice a craft	CRAFTMANSHIP	Craft an item via Knapping, Bone Carving, etc.
practicing a martial art	being unable to practice a martial art	MARTIAL_PROWESS	Gain a rank in any combat skill.
practicing a skill	being unable to practice a skill	SKILL	Use any skill.
taking it easy	being unable to take it easy	LEISURE_TIME	Unknown (Possibly engage in or witness a performance?) (I fulfilled this need by going to sleep at a tavern, getting interrupted in the middle of the night by a giant alligator (which the bards killed by the time I went down the stairs) and performing with them for a while.)
making romance	being unable to make romance	ROMANCE, LOVE PROPENSITY	Unimplemented.
seeing animals	being away from animals	NATURE	See an animal, animal must also see you.
seeing a great beast	being away from great beasts	EXCITEMENT_SEEKING, NATURE, CURIOSITY	Uncertain, possibly encounter LARGE_ROAMING?[Verify]
acquiring something	being unable to acquire something	GREED, COMMERCE	Acquire any item by trade or demand.
eating a good meal	a lack of decent meals	IMMODERATION	Unknown. If the same as in Fortress mode, eating a preferred food, or a sufficiently valuable mealv0.47.05.
fighting	being unable to fight	VIOLENT	Engage in any combat, minor or major.
causing trouble	a lack of trouble-making	HARMONY, DISCORD	Fight or argue with another individual.
arguing	being unable to argue	FRIENDLINESS	Get into any disagreement about values.
being extravagant	being unable to be extravagant	IMMODESTY	Wear any item with a quality modifier on a body part - a waterskin will not work, as it can only be worn in another item of clothing.
wandering	being unable to wander	NATURE, ACTIVITY LEVEL	Move to/from any site or region tile.
helping somebody	being unable to help anybody	ALTRUISM, SACRIFICE	Reunite family members.
thinking abstractly	a lack of abstract thinking	ABSTRACT_INCLINED	Read or write any written content, compose music or a poem.
admiring art	being unable to admire art	ARTWORK	Expose yourself to artistic crafts, examine adornments and coins.

Satisfying any need will result in a good thought and a decrease in stress.

Creatures with [NOEMOTION] cannot satisfy any need and will inevitably become 'distracted'. In unmodded games, this concerns only Intelligent undead.

Adventure mode meta-strategy

Upon creating your adventurer you may want to avoid having any of the non-fulfillable needs: romance, family, friends. Otherwise, you will suffer never-ending focus disadvantages. Immoderation too is only technically fulfillable for the itinerant adventurer, without a fortress's industry to reliably produce their preferred food.

Some precaution is necessary in sacrifice/altruism -> helping capability is not available as long as you're quite weak (fighting; companions), and maybe in martial prowess if you're not constantly fighting and so increasing your stats. To fulfill your booze needs, you'll have to visit human towns' taverns or dwarven fortresses quite often (and fill your extra water storage containers with ale from the barrels for on the road).