Arborea – World-wide Forests Map Script
Arborea aims to recreate the experience of the map type of the same name from Civ 5 – a world covered in trees. It achieves this by taking another map type ("Inland Sea" by default), generating it, and then covering it in trees. Optionally, this can involve more invasive changes such as replacing desert tiles with plains in order to get even closer to blanket tree-cover. The motivation behind this was to use it in conjunction with apocalypse mode to create an intermittently burning hellscape, but I’m sure there are other use-cases.
To use this script, create a new game and select "Arborea" as the map type. You can then choose from your non-static map types with "Map Types" to select the type of world you would like to generate a forested version of. You will be able to configure the base map’s parameters (sea level, temperature, etc.), as well as Arborea specific settings: the target percentage of passable land tiles which should be tree-covered; whether to replace deserts and snow with plains and tundra respectively; and whether to overwrite any floodplains or marshes without resources. The script will never remove resources of any kind from the map, and so has as little effect on the balance of the world as you could reasonably expect from blanketing in it trees! This is also the most likely explanation for any suspicious gaps; they’re probably tiles with strategic resources you haven’t discovered yet.
Although the script is theoretically compatible with any script-based map type (anything which generates differently each time), there are likely to be unconventionally structured ones which will break it. Static maps such as the earth map are not currently supported. The mod respects changes to which tiles can support trees ("Desert Woods", for example) as well as which resources can be tree-covered, although it will always try to put woods on tundra/grassland and jungle on plains.
