This is only true for normal mob spawning, as the spawner’s mechanics have nothing to do with nearby loaded entities, besides the ones that the spawner spawned itself. Hope I could clear some things up.
This is only true for normal mob spawning, as the spawner’s mechanics have nothing to do with nearby loaded entities, besides the ones that the spawner spawned itself. Hope I could clear some things up.
Also, the number of entities loaded only really affects the spawner if it’s the mobs that are spawned by it are near the spawner, I believe, so you don’t have to light anything up.
Dig out 5 blocks in every direction around the spawner, dig 3 blocks below it, and 5 blocks above it. Place a slab on top of the spawner. You can then use water on one side to push all the skeletons into a 1 by 1 hole, which should be 22 blocks. Once they fall down, punch them, and they should die instantly.
I feel as if the fortresses can’t really develop any new features, unless they somehow implemented blocks from the biome they are in, but I feel that would be very difficult to code.