FOSS gamedev and creative worlds

I want turn off caves (because they too deep (in y) and a large number of) but i not want turn off caves with lava. Or decrease size of caves in x,y,z and number of caves. Or how change maximum spawn height of caves? I can edit source files if it need.

Which mapgen?

7. 0.4.13 stable

https://github.com/minetest/minetest/blob/master/src/cavegen.cpp#L585
flooded = true;

https://github.com/minetest/minetest/blob/master/src/cavegen.cpp#L756
MapNode liquidnode = lavanode;

https://github.com/minetest/minetest/blob/master/src/mapgen_v7.cpp#L885
u32 bruises_count = (ps.range(1, 4) == 1) ? ps.range(1, 2) : 0;
and adjust the '4' to whatever.

Thank you

u32 bruises_count = (ps.range(1, 4) == 1) ? ps.range(1, 2) : 0;

In stable 0.4.13 this string is already. And i don't find lava underground.