Dehacked freindly that does not bump into you

[Milkeno]

In THIS thread ling makes a post on how using a spawnfly tag instead of attack flag and setting reaction time to -1 would  make a "friendly npc" but one gripe I have with it is that the npc will just follow you and bump you, is there a way to make them walk in "random" directions instead of zeroing in on the player? I've tried linedefs with the block monster parameter but that doesn't always look natural.

[esselfortium]

Not in vanilla.

 

You can make them walk away from the player, by giving them a negative speed and then swapping the names of all their sprite lumps to invert the angles (so the backward-facing sprites are now forward-facing, etc), but that also isn't exactly random. Depending on what you're trying to do, though, it might be close enough.