I've noticed while building in the Nether, that Zombified Piglins that spawn in my base always want to be as high up as possible? I encounter none of them spawning in the lower section, while preferring the upper platform. I just built a staircase leading up into an even higher area, and immediately multiple ZP's began to pathfind up, and continue to pathfind there, even though I kept nudging them off the edge. Is this regular for Zombified Piglin AI? Do all mobs do this and I just haven't noticed?
Nope, this is just normal Minecraft pathfinding logic. Each mob will search a 20x by 20z by 15y cube centered on their current position, randomly choosing an appropriate block to pathfind to. This spot must either be a non-transparent solid block (dirt, stone, wood, etc) OR a transparent block (glass, stairs, slabs, fences, etc) with a non-transparent solid block underneath. If the mob cannot physically reach the destination, they will move to the closest spot to it.
Gnembon has a fun farms video about a redstoneless blaze grinder that uses pathfinding to control where mobs go, I believe it's Fun Farms #9 (with Fun Farms #11 revisiting the blaze grinder to make it even simpler). He explains everything in detail there.
I've noticed while building in the Nether, that Zombified Piglins that spawn in my base always want to be as high up as possible? I encounter none of them spawning in the lower section, while preferring the upper platform. I just built a staircase leading up into an even higher area, and immediately multiple ZP's began to pathfind up, and continue to pathfind there, even though I kept nudging them off the edge. Is this regular for Zombified Piglin AI? Do all mobs do this and I just haven't noticed?
Nope, this is just normal Minecraft pathfinding logic. Each mob will search a 20x by 20z by 15y cube centered on their current position, randomly choosing an appropriate block to pathfind to. This spot must either be a non-transparent solid block (dirt, stone, wood, etc) OR a transparent block (glass, stairs, slabs, fences, etc) with a non-transparent solid block underneath. If the mob cannot physically reach the destination, they will move to the closest spot to it.
Gnembon has a fun farms video about a redstoneless blaze grinder that uses pathfinding to control where mobs go, I believe it's Fun Farms #9 (with Fun Farms #11 revisiting the blaze grinder to make it even simpler). He explains everything in detail there.