Gather Qi

**Gather Qi** is an Object Property indicating how much and how far an Object permeates its surroundings with Qi. The effect falls off over the range.

*See: Cultivation Rooms*

## Range

*See also: Game Range*

An object with a positive Gather Qi value also has a Range value, which indicates how far Qi is gathered from the Tile on which the object is on. The range starts at 1, meaning the tile itself, with each subsequent value increasing the range in "cardinal directions" (up, down, left, right) linearly.

As an example, the table below showcases the range associated to the tile surrounding an object from the object itself X (1) to 4.

## Falloff

Qi Gathering can decay over distance. The decay is affected by the properties of the Item (game code property in parentheses):

* Gather Qi Power (`AddionLing`)
* Gather Qi **Range** (`AddionRadius`),
	+ **Range** should not be confused with the **Distance**, which is equal to Range-1.
	+ For example, Spiritwood has a Gather Qi Distance of 3, but a Range of 4.
* Gather Qi Decay Rate (`AddionFailing`)
* Gather Qi Decay Starting **Distance** (`AddionFailRadius`)

Spiritwood in this example, has 20 Gather Qi Power, and Gather Qi Distance of 3 (Range 4). It also has a Gather Qi Decay Rate of 0.8 and a Gather Qi Decay Starting Distance of 2.

Effect of Spiritwood Qi Gathering at Distance

To put that into context, here's what that would look like in game:

If overlapped, they add up, meaning two pieces of Spiritwood would look something like below:

This interaction is the foundation of Cultivation Rooms.

**Note:** not all items have the same falloff function as Spiritwood, so they would need to be checked individually. As a general rule, use whatever you have that has the highest Gather Qi strength within its range.

* When Distance <= Gather Qi Decay Starting Distance, the Effect is equal to the base Qi Gathering Value.
* When Distance > Gather Qi Decay Starting Distance but <= Gather Qi Distance, the Effect is:
	+ (Qi Gathering Value) \* ((Qi Gathering Decay Rate) To the Power of (Distance - Qi Gathering Decay Starting Range))
* When Distance > Gather Qi Distance, the Effect is 0.

For context, with the previous example on Spiritwood:
* Distances Greater Than (Qi Gathering Range(4) -1)=3, Effect is 0
* Distances Smaller or Equal To Qi Gathering Decay Starting Range (2), which includes Distances 0-2, Effect is 20
* For Distance 2.236:
	+ 20\*0.8(2.236-2)=20\*0.80.236=20\*0.948=**18.97**
* For Distance 2.828:
	+ 20\*0.8(2.828-2)=20\*0.80.828=20\*0.831=**16.62**
* For Distance 3:
	+ 20\*0.8(3-2)=20\*0.81=20\*0.8=**16**

## List of Gather Qi Objects

### Ancient Relics

While ancient relics are items and thus part of the above category, they have separate constraints making them difficult to use and thus have been isolated in their own list.

## Gather Qi objects with element-neutral range

None Gather Qi objects don't affect the Element Composition of a tile and can be used safely, refer above for a list. Outside of them some elemental gather qi objects, like the Spiritwood, have a Gather Qi range that go further than their Element Emission range. It is thus possible to use those for all elements, as long as the item is placed outside the element emission limit of the tile(s) they need to affect.

### Ancient Relics and Spirit roots

While both Ancient Relics and Spirit Roots technically have some element-neutral gather qi range, their other constraints makes using them more difficult so they're in a separate list.

## Qi Gathering

**Qi Gathering** is a community term for the intentional continuous increase in Qi on one or several Tiles, resulting from strategically placed Objects with Gather Qi properties and Ambient Qi.

### Uses

* To gather Qi to one focused point.
	+ For Cultivation purposes it is beneficial to create locations with a high amount of Qi.

*See: Cultivation Rooms*

### Value

The Qi Gathering value is a summation of:

* Spirit Soil +40 (if any on the tile)
* Objects with Gather Qi if within Range (with appropriate effectiveness falloff)
	+ Items
	+ Plants
	+ Buildings

### Disrupting Flow

* Adding an item will disturb the Ambient Qi within a Square Range equivalent to its Gather Qi range. This is the basis of Manual Qi Burst and Qi Fountain setups.
	+ It takes up to 5 days for the Qi to build back up\*
	+ It is also possible to "remove flooring" on top of Spirit Soil, instantly flipping the Qi Gathering value.

It is possible to have negative Qi Gathering that removes or "pushes out" Qi with Cursed Spirit Roots. For that, check out the Spirit Roots#Guide.

## Mods

### MoreGridInfo

MoreGridInfo is a Mod that gives numeric information for various values present on a tile:

* Qi
* Max Qi (in 5 days)
* **Gather Qi** (collective)
* Lighting
* Room attractiveness
* Five Elements

## Additional Reading

Chinese threads on Baidu, which go over the mechanics in detail:

* https://tieba.baidu.com/p/6419752081?see\_lz=1&pn=2
* http://tieba.baidu.com/photo/p?kw=%E4%BA%86%E4%B8%8D%E8%B5%B7%E7%9A%84%E4%BF%AE%E4%BB%99%E6%A8%A1%E6%8B%9F%E5%99%A8&flux=1&tid=6419752081&pic\_id=091d4a32c895d1432320b85a64f082025baf07b4&pn=1&fp=2&see\_lz=1&red\_tag=i1154882023