TerrainDef

TerrainDefs are used for defining basically anything that covers the floor, whether it be grass, sand, soil, or carpets.

Global attributes[edit]

Attribute	Description	Options
defName	Unique ID for which the TerrainDef will take (also the reference ID)	String
label	Language-specific name displayed in game	String
renderPrecedence	Render importance of terrain	Integer; higher values take higher priority (Sand = 350, Soil = 340, Gravel = 330, Carpet = 300-298)
description	Information about the terrain	String
texturePath	Path in which the terrain texture is located	String as path (from Textures/)
beauty	How nice the terrain looks to pawns (influences thoughts)	Enchanting, Gorgeous, Nice, NiceTiny, Neutral, UglyTiny, Ugly, Hideous, Horrifying
fertility	Fertility rating of the terrain (ability for crops to grow on terrain)	Float (Soil = 1.0, SoilRich = 1.4, Gravel = 0.7, Sand = 0.06)
acceptTerrainSourceFilth	Determines whether or not the flooring can collect filth on it	Boolean (true or false)
takeFootprints	Determines whether or not the flooring draws colonists' footprints	Boolean (true or false)
edgeType	Gives the terrain a fade effect towards the edges	Fade, Hard (default: Hard)

You should add these attributes if you are making buildable terrain, such as a carpet.

Attribute	Description	Options
surfacesSupported	Defines what surfaces the flooring can be placed on	Any, Light, Heavy, GrowSoil, Diggable, SmoothHard, SmoothableStone
costList	Cost to make each tile of flooring	Integer
researchPrerequisites	Defines any research requirements before the flooring can be built	String
constructionEffect	Effect shown when colonists are building the flooring	ConstructDig
designationCategory	Defines which architect tab the flooring should appear in (optional)	Zone, Building, Orders, Structure, Furniture, Security
workToBuild	Ticks needed to build 1 tile of flooring	Integer (usually 1 tick per frame)