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[[Category:Game Mechanics]] [[Category:Resources]]

{{Spoilers}}

Resources are power pools used for various [[talents]] in ToME 4.  There are several different kinds of resources, and some of them have unique behaviors. Several resources are affected by [[Fatigue]].

==Air==
Only appears when you can't breathe for some reason. Being underwater, in a wall, or buried in sand will generally prevent you from breathing. You take an increasingly large amount of damage each turn after reaching 0 Air. Some items allow you to breathe underwater, or remove the need to breathe at all.  Some underwater areas will have bubbles that can restore air until they are depleted.

Most characters have 100 air, with [[yeek]] characters having 200.  Two artifacts, [[Coral Spray]] and [[Vargh Redemption]] will raise the cap by 50 air. 
* The first turn you are underwater your air will drop by 5 and will then decrease by 2 each subsequent turn.
* The first turn you are in a wall your air will drop by 20 and will then decrease by 17 each subsequent turn.
* The first turn you are buried in sand your air will drop by 10 and will then decrease by 7 each subsequent turn.
* When you can breathe again normally you regain 3 air per turn.
* Underwater bubbles will restore 20 per turn (minus the loss of 2 from being underwater, for a total gain of 18).
* When your air runs out you begin taking damage. The first turn it is 20% of your max life and it increases by 5% each turn (so 25% on the second turn, 30% on the third). This is quickly fatal.

==Equilibrium==
Equilibrium is the [[resources|resource]] used by the [[Wild-gift (category type)|Wild Gift]] talents, and represents how far the character is out of balance with Nature.  It is sometimes abbreviated "EQ".

Equilibrium starts at 0, and is raised by talent use; a high Equilibrium increases the chance of failure. If Equilibrium exceeds [[Willpower]], an attempt to use a Wild Gift talent has a (sqrt(Equilibrium - Willpower) / 60) chance to fizzle, causing the loss of a turn.

Equilibrium does not naturally reduce itself over time, but it can be restored by:
* Walking on the wilderness map
* Standing in the area of effect of a Font of Life
* [[Meditation (talent)|Meditating]]
* [[Swallow (talent)|Swallowing]] enemies
* Being hit while [[Resolve (talent)|Resolve]] is active but [[Antimagic shield (talent)|Antimagic Shield]] is not
* Coming under a life regeneration effect while under the influence of [[Ancestral life (talent)|Ancestral Life]]
* Being hit while wearing various [[egos|equipment with on-hit EQ regeneration]]

Note that if a player/creature has an [[Equilibrium]] bar, using [[Vim|Vim-based]] talents will increase it by a noticeable amount.

==Feedback==
Feedback represents using pain as a means of psionic grounding and it can be used to power feedback abilities. Characters that have the feedback resource will gain feedback in proportion to any damage received. The base conversion rate depends on character level: it starts at 50% at level 1, and decays to 20% at level 50. Feedback is used by the [[Solipsist]]'s [[Feedback (category)|Feedback]] and [[Discharge (category)|Discharge]] talent trees. It decays at the rate of 10% or 1 per turn (whichever is greater).

==Hate==
Hate is the [[resources|resource]] used by the Afflicted classes, the [[Cursed]] and the [[Doomed]].  Hate does not regenerate, and even decays over time.  It is mainly recovered while fighting.  Hate is affected by [[fatigue]].

You can have up to 100 points of hate. Afflicted suffer from reduced healing while not at maximum hate -- by 50% at zero hate.  Your Hate slowly decays (more quickly when the level is higher), down to a minimum of half your Hate at the end of the most recent combat.  The strengths of many abilities also depend on your level of Hate.

Here are some ways Hate is regained:

* '''Kill something''': 8 points, more for higher [[rank]] -- 24 points for a boss
* '''Take a big hit''' (over 15% of your maximum life): 2 points + 2 points per 5% life lost above 15%
* '''Take a hit while at low health''' (under 25% of maximum life): 4 points
* '''Do massive damage''' (over 33% in one hit)

The Doomed [[Dark sustenance (category)|Dark Sustenance]] tree has the talent [[Feed (talent)|Feed]], which can be used to replenish hate.  Various Cursed talents also give Hate bonuses.

==Life==
{{:Life}}

==Mana==
Used by most of the magical spell talents.  It works much like Spell Points or Mana in most other RPGs.  Only Mage classes can regenerate Mana naturally. Certain class talents and gear can grant passive Mana regen, and having a Manasurge rune inscribed will grant some passive regen while resting. Your maximum increases with level (+4 per level), gear, and [[Willpower]] (+5 per point).

==Souls==
Used by [[Necromancer|Necromancers]], and represents the number of souls caught within the necrotic aura.  Each soul can become an undead minion.  The pool is replenished by killing living beings within the necrotic aura.

==Negative energy==
Negative energy is the power source for predominantly-[[Anorithil]] talents.  [[Necromancer]]s can also get access to the tree by becoming a [[Lich]].

It can be replenished by Anorithil using:
* [[Twilight (talent)|Twilight]]: 15 positive, 6 cooldown, recover (20 + 0.4 * talent * cunning) negative energy
* [[Twilight surge (talent)|Twilight Surge]]: recover 20 negative and 10 positive energy
among other ways.

Liches will regenerate negative energy over time, whereas Anorithil and Adventurers lose negative energy over time.

Maximum negative energy is increased by 3 whenever a character gains a level.

==Paradox==
Paradox is the resource used by the Chronomancy talents. It is somewhat like [[Equilibrium]] -- it starts at 0, and increases as talents are used. High paradox causes failures, anomalies, and backfires, but also increases the power of some talents. The damage (and sometimes duration, etc) of most Chronomancy talents is multiplied by a "paradox modifier" determined by the following formula: sqrt(0.5 + Paradox / 600).

The cost of active paradox talents increases the higher your paradox already is; it is multiplied by 1 + (Paradox / 300).

Paradox failures simply cause you to lose a turn like equilibrium failures. However, unlike equilibrium failures, your paradox still increases by the cost of the talent that failed.

If an anomaly occurs, not only do you lose the turn and talent, but a random Anomaly talent is used. Your paradox is also reduced by twice the cost of the talent that failed. Anomaly chance is rolled before failure chance.

If a backfire occurs, the talent targets the caster.

To calculate paradox failure, anomaly, and backfire chance, first calculate modified paradox by the following formula: (Paradox - [[Willpower]] * Willpower_modifier). Some items, such as the Shard of Crystallized Time, add directly to the Willpower stat used in this calculation, as does Temporal Form. Willpower_modifier is 1 + ([[Paradox mastery (talent)|Paradox Mastery]] talent level / 10).

Then calculate the fatigue modifier: (100 + 2 * [[Fatigue]]) / 100.

Failures can only occur if modified paradox is over 200; if so, the chance is ceil(fatigue_modifier * (modified_paradox / 200)^2).

Anomalies can only occur if modified paradox is over 300; if so, the chance is ceil(fatigue_modifier * (modified_paradox / 300)^3).

Backfires can only occur if modified paradox is over 400; if so, the chance is ceil(fatigue_modifier * (modified_paradox / 400)^4).

==Positive energy==
Positive energy is a resource used by both of the [[Celestial (Metaclass)|Celestial]] classes (the [[Sun Paladin|Sun Paladins]] and [[Anorithil]]). Many early talents will actually replenish it rather than drain it, shown as negative numbers in costs.  It decreases over time if not used.

The size of the positive energy pool (max positive energy) is increased by 3 whenever a character gains a level.

==Psi==
Psi is the resource used by Psionic classes, such as [[Solipsist]] and [[Mindslayer]]. It slowly regenerates over time, can be restored by talents and some equipment. Players can increase psi pool by raising willpower (+1 per point invested in willpower except for the [[Solipsist]] class).

==Stamina==
Stamina is the resource used by most physical talents.  It is regenerated at a rate of 0.3 per turn if there are no other modifiers.  Resting will accelerate the rate at which stamina is recovered. Stamina capacity is increased by raising willpower (+2.5 max stamina per point) and when gaining a level (+3 max stamina per level).

==Vim==
Vim is the resource used by the [[Defiler]] metaclass.  Vim does not regenerate but is instead regained in several ways, all involving combat.  [[Fatigue]] plays no role in determining vim costs.  The vim pool grows by 4 points every level and is not influenced by any stats.

Ways of regaining vim:

* '''Kill bounty:''' Each kill returns one point of vim per 20 [[Willpower]].
* '''Kill refunds:''' If you kill something directly with a vim-using talent, the talents cost in vim is restored. This ''only'' works with straight damage -- infecting someone with a disease won't return any vim this way, even if your victim dies from it three rounds later.  Though if you kill something with a Bone Nova, for example, you will get its cost refunded.
* '''Special Talents:''' Some talents can also restore your vim, such as [[Drain (talent)|Drain]] and [[Leech (talent)|Leech]].