Hi guys, this is the situation: I am playing survival and I would like to build a mobtrap in the spawnchunks but right below there are caves that I have not explored yet ... do I need to place torches all over the caves below so that mobs do not spawn? Will I be able to be more effective in the mobtrap that way? Or maybe they recommend me to build the mobtrap in another place away from my spawn chunks?
Thank you for reading and sorry for use google translate.
It absolutely does not matter if you build your mob trap in spawn chunks or not. If you are not within 128 blocks of your trap, no mobs will spawn.
I almost always build my mob farm over an ocean with player station at Y 192 (128 above water surface) Used to be able to build a bit lower (128 above ocean bottom) but now have to account for drowned.
You should probably put torches in the caves below the mob trap, just because they could spawn in the caves instead of the trap and the trap wouldn't work.
This is why mob farms are often built high up in the sky - so that player is 128 blocks away from surface. Getting every cave lit up in a 128-radius circle can be a very daunting task - even if one has x-ray.
Another technique is using a combo of flying machines and TNT duplicators to carpet-bomb a 256x256 area all the way down to bedrock, and then build a mob farm in center of that hole.