-- If there's a "false" (behind a "=") you can change it to "true" (and the other way around).
-- Spelling is important.
-- If "true" or "false" is necessary as setting, everything(!) which is not spelled "true" will be read as if it were "false" (even "1", "True"...)
-- If you wanna comment something (for example to remember the default value), you can do this by putting "--" in front of the comment.
-- You can put "--" at the end of a line with "=" in it, or at the beginning of an empty/new line (minetest will ignore what's behind it then).
-- But don't put "--" in front of a line with "=" in it (or else minetest will ignore the setting and you might get an error).
-- If something is still unclear, don't hesitate to post your question @ https://forum.minetest.net/viewtopic.php?id=6921
abstract_ferns.config={}
-- Which plants should generate/spawn?
abstract_ferns.config.enable_lady_fern=true
abstract_ferns.config.enable_horsetails=true
abstract_ferns.config.enable_treefern=true
abstract_ferns.config.enable_giant_treefern=true
-- Where should they generate/spawn? (if they generate/spawn)
--
-- Lady-Fern
abstract_ferns.config.lady_ferns_near_tree=true
abstract_ferns.config.lady_ferns_near_rock=true
abstract_ferns.config.lady_ferns_near_ores=true-- if there's a bunch of ferns there's ores nearby, this one causes a huge fps drop
abstract_ferns.config.lady_ferns_in_groups=false-- this one is meant as a replacement of Ferns_near_Ores: ferns tend to generate in groups, less fps drop, no hint for nearby ores
--
-- Horsetails
abstract_ferns.config.enable_horsetails_spawning=false-- horsetails will grow in already explored areas, over time, near water or gravel
abstract_ferns.config.enable_horsetails_on_grass=true-- on dirt with grass and swamp (sumpf mod)
abstract_ferns.config.enable_horsetails_on_stones=true-- on gravel, mossy cobble and silex (stoneage mod)