2.) When I set say... 40% Pine Forest, and 20% snow, desert, wasteland it'll generate the map.
If i change it to 46/18/18/18 literally nothing will change or shift around to compensate for the new percentages. Just a carbon copy of the first map.
BUT on the same vein... if i took the same 40/20/20/20 map and made it 34/22/22/22 it'll completely change the positioning of the biomes.
And the on top of it...if i could change the world seed slightly, do the 40/20/20/20 mix again, then the 34/22/22/22 would not shift or change but
the 46/18/18/18 would. Or going in either direction nothing moves, not even POI positions.
4.) The single biome map, pure 100% of any one, it just literally makes a small ring of pine forest in an arbitrary location. No spawn points inside that ring. It's just there like a weird pimple on the map that won't go away no matter how i shift POI, town, mountain, hill etc density.
And in the event of a 100% pine forest biome map...it'll throw a random wasteland or desert (never snow though....) in the same fashion.
No, no spawn exists in that random ring of biome when i do a 100% single-biome map. It's just... like I mentioned my above reply, like a pimple on the map.