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Difference between revisions of "v0.31:Biome"
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Revision as of 03:21, 21 August 2011
| This article is about an older version of DF. |
A biome is a biotic area with homogeneous features, characterized by distinctive Template:Ls, Template:L and Template:L. A biome will also contain only one set of stone layers, though these usually expand beyond a single biome. Your Template:L will find different resources depending on which biomes you select when starting a fort.
Selecting a biome
Biomes are important when choosing a fortress location in order to understand your Template:L. Individual biomes, which form at least one map-tile of your embark location, can be cycled with the F#-keys; for example, an area with 3 biomes present can be cycled using F1, F2 and F3. The selected biome will be highlighted with flashing Xs on the Local Map, and the biome's information will be displayed on the right side of the screen.
Characteristics of biomes
Selecting different biomes gives you some ability to influence the difficulty of your game. Each biome has a different set of resources; the availability of Template:Ls, Template:L, certain Template:Ls or Template:Ls, and sometimes Template:L is specific to a particular biome, and different biomes may have different stone layers containing Template:L, Template:L, useful Template:Ls, or a high chance of Template:L. Template:Ls have a lot of Template:L, but no Template:L.
Generally it is advantageous to plot your embark Template:L at the convergence of multiple different biomes, the more the better (within reason) - which is made easier if you enlarge your starting embarkation area. However, it is not usually too hard to find three or four biomes using the default size.
Note: Making the starting plot larger will slow your game down considerably; likewise, a small embark area can dramatically increase framerate. One embark square translates to 48x48 ingame tiles
By making use of several biomes you can provide more resources for your fort. Making sure one of your biomes contains either a broadleaf or conifer Template:L will provide you with an ample supply of Template:Ls, even if the rest of your plot extends into badlands and Template:L.
All biomes also have some kind of "alignment" -- good, neutral, or evil -- and a degree of "savagery", which essentially measures how relatively peaceful the biome is. The combination of alignment and savagery is referred to as the biome's Template:L. However, a named region (which is a contiguous area of one category of biomes, such as Template:Ls or Template:Ls) will be either good, neutral, or evil. It is not uncommon to see a large mountain range with one alignment and a few mountains, disconnected from the main mountain range by a single region tile, with a different alignment. Therefore, the more biomes you have, the more likely it is to have combinations of different alignments and savageries, if so desired.
If your plot contains only Template:L, Template:L or Template:L biomes you will not be able to embark. The dwarves would have difficulty parking their Template:L on water, while mountains are too barren and remote to reach.
Available Biomes
Freezing
Wetlands
- Template:L Freshwater Template:L
- Temperate Saltwater Swamp
- Temperate Freshwater Template:L
- Temperate Saltwater Marsh
- Template:L Freshwater Swamp
- Tropical Saltwater Swamp
- Mangrove Swamp
- Tropical Freshwater Marsh
- Tropical Saltwater Marsh
Forests
- Template:L
- Template:L Template:L
- Temperate Template:L
- Template:L Coniferous Forest
- Tropical Dry Broadleaf Forest
- Tropical Moist Broadleaf Forest
Plains
- Template:L Template:L
- Temperate Template:L
- Temperate Template:L
- Template:L Grassland
- Tropical Savanna
- Tropical Shrubland
Deserts
Template:Ls
- Tropical Ocean
- Temperate Ocean
- Arctic Ocean
Murky Template:Ls
- Template:L Freshwater Pool
- Temperate Brackish Pool
- Temperate Saltwater Pool
- Template:L Freshwater Pool
- Tropical Brackish Pool
- Tropical Saltwater Pool
Template:Ls
- Template:L Freshwater Lake
- Temperate Brackish Lake
- Temperate Saltwater Lake
- Template:L Freshwater Lake
- Tropical Brackish Lake
- Tropical Saltwater Lake
Template:Ls
- Template:L Freshwater River
- Temperate Brackish River
- Temperate Saltwater River
- Template:L Freshwater River
- Tropical Brackish River
- Tropical Saltwater River
Underground
- Subterranean Water
- Subterranean Chasm
- Subterranean Magma
Groups
Certain creatures and plants use special biome tokens to encompass several similar environments.
- "Not Freezing" includes all land biomes excluding mountains, glaciers, and tundras.
- "Any Temperate Broadleaf" includes temperate broadleaf forests as well as grasslands, savannas, shrublands, swamps, and marshes.
- "Any Tropical Broadleaf" includes tropical dry/moist broadleaf forests as well as grasslands, savannas, shrublands, swamps (including Mangrove), and marshes.
More information can be found in the Template:L list.
Generating a Biome
When using Template:L to attempt to create the "perfect" starting location, it helps to understand how biomes are created. A region's biome is a factor of elevation, drainage, rainfall, and temperature, as explained in this old forum thread for 40d. Testing has confirmed that this information holds true for DF2010.
Elevation comes first. Any terrain with an elevation of 0-99 is ocean. Any terrain with an elevation of 300-400 is mountain terrain. All other biomes lie in between these two extremes.
Drainage and rainfall determine the next division.
| Drain \ Rain | 0-9 | 10-19 | 20-32 | 33-65 | 66-100 |
|---|---|---|---|---|---|
| 0-32 | Desert | Grassland | Savannah | Marsh | Swamp |
| 33-49 | Wasteland | Grassland | Savannah | Shrubland | Forest |
| 50-100 | Badlands | Hills | Hills | Hills | Forest |
Finally, temperature. Glaciers seem to form at a temperature of around 0. Just above that temperature, forests become taiga, and all other terrain becomes tundra. Unfortunately, temperature is harder to affect directly in world gen because according to Toady One, it's affected by both latitude and elevation. At the other end of the temperature scale, biomes become tropical at around 65+; generally speaking you'll need Hot and Scorching temperatures.
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