Editing Anima tree

{{Royalty}}
{{Infobox main|plant
| name = Anima tree
| image = Anima tree a.png
| description = A rare tree with warm, skin-smooth bark and long iridescent leaves. Infused with bioluminescent micro-organisms, anima trees develop a unique form of psychic symbiosis with surrounding lifeforms, allowing them to grow in a wide variety of biomes.<br/>If a person (psycaster or not) meditates near an anima tree, it will grow anima grass around its base. Once enough grass is grown, it becomes possible to carry out a psychic linking ritual with the tree and upgrade a person's psychic powers. Only tribal peoples know the secret of this ritual. Tribal psycasters are also able to draw psyfocus from anima trees while meditating to them.<br/>Anima trees' psychic properties are weakened if artificial structures are placed nearby. They refuse to be caged or studied, and must remain part of nature.<br/>Most tribes believe that anima trees are not simply trees, but are rather the physical extremities of a single world spirit.
| type = Plant
| type2 = Tree
| path cost = 42
| passability = pass through only
| blockswind = true
| cover = 0.25
| minifiable = false
| hp = 400
| flammability = 0
| beauty = 5
| beauty outdoors = 1
| grow days = 25
| glowradius = 3.75
| glowcolor = (110, 116, 125)
| lifespanDaysPerGrowDays = 0
| harvest work = 800
| product = wood
| yield = 25
| min fertility = 0.02
| fertility sensitivity = 0
| nutrition = 2
| livesin_temperateforest = True
| livesin_temperateswamp = True
| livesin_tropicalrainforest = True
| livesin_tropicalswamp = True
| livesin_aridshrubland = True
| livesin_desert = True
| livesin_borealforest = True
| livesin_coldbog = True
| livesin_tundra = True
}}
The '''anima tree''' is a tree added by the [[Royalty DLC]]. It acts as a meditation focus and source of [[psycasts|psylinks]] for pawns with the [[Psyfocus#Natural|Natural]] focus type, but is sensitive to artifical structures around it.

== Growth ==
{{Stub|section=1|reason= Archonexus{{IdeologyIcon}} locations}}
One anima tree spawns on most [[World generation#Landing site|landing site]] maps. On larger map sizes, up to two may spawn. The Extreme Desert, Ice Sheet, and Sea Ice [[biome]]s are too inhospitiable for anima trees to spawn.

Anima trees are immune to [[fire]], [[toxic fallout]], can survive up to {{Temperature|-50}}, and will survive in the [[sun blocker|absence of light]]. [[Thrumbo]]s will not eat anima trees, but [[alphabeaver]]s can. It is also susceptible to both [[defoliator]]s and [[defoliator ship]]s. [[Anima grass]] is vulnerable to fire, and will rot if left without light, but will not be eaten by grazing animals. Note that while the anima tree has no lifespan, any anima grass only lives for {{Q|Anima grass|Lifespan}} [[time|days]].{{Check Tag|Verify|verify that it does in fact die after enough time - both the listed time and significantly longer.}}

=== Regrowth ===
Destruction of the anima tree causes the {{--|6}} [[Mood#Anima scream|anima scream]] [[mood]]let for 5 days, and stacking up to 3 times. The mood effect scales with [[Psychic Sensitivity]].

After roughly 30 days, it will grow back in a [[Events#Anima tree sprout|random event]] at a random location away from artificial buildings. This can be used to move a tree from an inopportune location at the cost of mood.

== Meditation mechanics ==
{{Stub|section=1|reason= Meditation is recreation. How much etc}} 
Meditating at an anima tree requires a [[Psyfocus#Natural|Natural]] [[meditation focus]], which a pawn can only gain from their childhood [[background]]. Only Tribal backstories can have the focus type, and several of them do not provide it. Pawns do not need to have psylink levels to meditate. [[Schedule]] meditation and place a [[meditation spot]] so that your colonists will actively meditate near the tree.

Meditation at the tree serves two purposes; firstly, it grows anima grass for the granting of psylink. Secondly, it acts as the second best meditation focus, after [[animus stone]]s, for Natural meditation, increasing the rate at which psycasters meditating to the tree gain psyfocus. 

=== Anima grass ===
{{Stub|section=1|reason= 1) Numbers for participant/grass retained ratio}}
Meditating near an anima tree creates '''anima grass''' around the base of the tree. Once at least 20 grass has been grown, a level of psylink can be granted to a pawn with the Natural meditation focus type. 

Anima grass is created proportional to the pawn-hours spent meditating to it. Multiple pawns can meditate at the same time to speed up the spawning of the anima grass. It takes 1 pawn meditating for approximately 5 in-game hours to grow one anima grass. After 12 pawn-hours of cumulative meditation time, grass growth slows by 50%. After 24 pawn-hours of meditation time, it slows to 25%. Finally, it drops to 15% of the normal growth rate after 48 pawn-hours of meditation time. This counts all pawns that have meditated during a 24 hour period. This rate is also affected by the [[#Artificial buildings|artificial buildings]] surrounding the tree. If there are multiple trees on a map, each will have it's own anima grass and threshold, allowing more grass to be grown before hitting diminishing returns.

The pawn must have Natural meditation available in order to grow anima grass. However, the health, psylink level, and [[psychic sensitivity]] of the meditating pawns has no effect on the amount of grass generated.{{Check Tag|Deaf?|Increased psy sense doesn't seem to improve rates, but can psychically deaf still meditate succesfully?}}

{| class="wikitable"
! Pawn-Hours/Day 
! Grass grown/Day
! Graph
|-
! 12 hours 
| {{#expr: (12/5)}}
| rowspan="5"| {{Graph:Chart
|width=200
|height=200
|type=line
|x = 0,  12,  24,  48,  60, 100
|y = 0, 2.4, 3.6, 4.8, 5.16, 6.36
|xAxisTitle = Pawn-Hours/Day
|yAxisTitle = Grass grown/Day
|yAxisMin = 0
}}
|-
! 24 hours 
| {{#expr: (12/5) + (12/5)*0.5 + (0/5)*0.25 + (0/5)*0.15}}
|-
! 36 Hours 
| {{#expr: (12/5) + (12/5)*0.5 + (12/5)*0.25 + (0/5)*0.15}}
|-
! 48 Hours 
| {{#expr: (12/5) + (12/5)*0.5 + (24/5)*0.25 + (0/5)*0.15}}
|-
! 60 Hours 
| {{#expr: (12/5) + (12/5)*0.5 + (24/5)*0.25 + (12/5)*0.15}}
|}

=== Linking ritual ===
The linking ritual takes approximately 5 hours and requires 20 anima grass.

This ritual can grant a psylink to a pawn without one or improve the level of an existing psylink; even one granted using a [[psylink neuroformer]] or through an Empire [[Titles|bestowing ceremony]]. This only works on pawns with the Natural meditation type. [[Children]] {{BiotechIcon}} cannot link to the anima tree. Once the ritual is complete, 20 anima grass will die, reduced by an amount proportional to the number of participants. Any remaining grass can then be reused for future linking rituals, however note that the grass has a limited lifespan of {{Q|Anima grass|Lifespan}} [[time|days]].

=== Meditation focus ===
Psycasters regain psyfocus at a base rate of {{+|50%}} psyfocus per day spent meditating. Focuses in range of the psycaster's [[meditation spot]] and of a focus type they share increase this rate additively. Anima trees have a base meditation focus strength of {{+|28%}} psyfocus per day. Each [[animus stone]] within 10 tiles increases the meditation effectiveness by {{+|2%}}, while each [[small nature shrine|small]] or [[large nature shrine]] within 10 tiles increases it by {{+|1%}}. Up to 4 buildings can affect the tree, for a maximum bonus of {{+|8%}} from  4 animus stones. This rate is also affected by the [[#Artificial buildings|artificial buildings]] surrounding the tree.

The maximum meditation focus strength is thus {{+|36%}} for an anima tree with no artificial buildings within 35 tiles and surrounded by 4 animus stones. 

=== Artificial buildings ===
{{Stub|section=1|reason=Radius?}}
Building an artificial building will reduce the meditation strength and anima grass growth rate. Each building reduces the rate by {{--|1%}} to {{--|5%}}.{{Check Tag|Detail|Changes based on what}} The maximum penalty from buildings is {{--|30%}}. 

The following buildings are not considered artificial for this purpose:
<div class="ul-column-width-200">
* [[Snowman]]
* [[Torch lamp]]
* [[Horseshoe pin]]
* [[Hoopstone ring]]
* [[Grave]]
* [[Campfire]]
* [[Small nature shrine]]
* [[Large nature shrine]]
* [[Animus stone]]
* All [[spot]]s 
* All [[floor]]ing
* All types of smoothed stone walls
* [[Mech recharger]] {{BiotechIcon}}
* [[Large mech recharger]] {{BiotechIcon}}</div>

[[Ruins]] also do not have any penalty '''so long as the ruins remain unclaimed;''' claiming the ruins will cause them to apply the usual penalty. Despite their similarity to other exempted objects, [[monument marker]]s are considered artificial.

Selecting the tree displays two circles around the tree:
*The smaller, green circle is the range at which animus stones and nature shrines can link to the tree.
* The larger, red circle indicates where artificial structures will disrupt the tree. The "Build radius warning" option, turned on by default, will create a red line whenever you try and place a building.

== Analysis ==

=== Buildings ===
There are two philosophies for building near the anima tree:
* Leaving the anima tree clear from artificial structures. You can still install attractive [[floor]]s and plant flowers (where grass won't spawn) to keep the area [[beauty|beautiful]] and meditators happy without affecting the tree. A bed and dining room just outside of the radius can help lower travel time - especially if you dedicate a colonist's entire day to meditation.

* Ignoring the artificial penalty entirely. Create your entire base right next to the anima tree, and surround the tree with [[wall]]s. This makes the travel time much shorter, and keeps your pawns safer against raids during meditation. In [[biome]]s where the [[Events#Beavers!|Beavers!]] event can happen (arid shrubland, tundra), it also keeps the ''tree'' safe. The decrease in travel time can make up for the -30% penalty, especially when multiple pawns are able to meditate.
** Make sure not to build a [[roof]] or floor over the tree, or where grass can spawn. Use the [[remove roof area]] tool in the Zoning tab so that your builders don't cut down the tree.
** While building close to the tree impacts the rate at which you gain psyfocus, the psyfocus gain provided by the tree is an "offset" on top of a pawn's base psyfocus gain of +50%/day. Even if the tree's psyfocus gain offset is at its minimum, a -2%/day penalty, pawns can still gain psyfocus by meditating at the tree at a rate of +48%/day.
In either case, a ring of flooring around the tree and grass spawning area can be useful to prevent [[fire|wildfires]] destroying the grass.

=== Pawns ===
For maximum growth, [[schedule]] one or more colonists to just meditation, only stopping to eat or sleep. This also reduces travel time, useful if you have built away from the anima tree. Meditating will provide some [[recreation]]; while they will rapidly become [[Recreation#Recreation tolerance|bored]] with it, it will still keep the bar full if done all day. If a ruin or natural wall is within 6 tiles, consider [[roof]]ing over their meditation spot to keep them out of the [[weather|rain]] and [[toxic fallout]]. 

If the anima tree is very nearby to the colony, then you can also schedule meditation for all tribal colonists in place of recreation. Meditation does fill up the recreation meter, even if colonists will get bored of it. If a large portion of colonists are set to meditation, then you will quickly hit the soft limit for grass growth.

While the grass does not grow faster when meditated at by a psycaster, they are still ideal choices. The psyfocus gain from meditation not only replaces their need to meditate elsewhere; it also all but guarantees that they will be consistently at 100% psyfocus. This especially synergizes with high-psyfocus-cost, non-combat psycasts such as [[Psycasts#Word of trust|word of trust]] or [[Psycasts#Word of inspiration|word of inspiration]], and is valuable for keeping casters combat-ready as well. 

While meditation is slightly faster with anima stones for natural psycasters, having more psylinks available is almost always worth the tiny loss in psyfocus gains. This is especially true if [[Persona weapon#Kill-focused|Kill-focused]] persona weapons or [[rituals]]{{IdeologyIcon}} that refresh the psyfocus of participants are available.

== Gallery ==
<gallery>
Anima tree a.png|Anima tree variant A
Anima tree b.png|Anima tree variant B
Anima tree c.png|Anima tree variant C
Anima tree d.png|Anima tree variant D
Anima tree e.png|Anima tree variant E
</gallery>

== Version history ==
* [[Version/1.1.2647|1.1.2647]] - Added.
* [[Version/1.1.2654|1.1.2654]] - Regrowth check cycle: 40 days -> 30 days. Added warning message when designating an anima tree for cutting and using it to give a psychically dull or deaf pawn psylink. Now sends a letter when enough anima grass is available for linking.
* [[Version/1.2.2719|1.2.2719]] - Anima trees are enhanced by nearby animus stones. Will no longer be destroyed by meteors, crashed ship parts, or shuttles. Anima grass progress rate now reduces after they're heavily used within a single day. All Psylink levels now take 20 anima grass instead of 18 for levels 1 and 2, 20 for 3 and 4, and 22 for 5 and 6. Soften anima tree glow. Remove anima grass glow.
* [[Version/1.3.3067|1.3.3067]] - Anima grass growth rate is now slowed, like the psyfocus penalty, when the tree is near artificial buildings.
* [[Version/1.3.3074|1.3.3074]] - Prevent thrumbos from eating anima trees.
* [[Version/1.3.3087|1.3.3087]] - Description updated.

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