/vr/ - Retro Games

In early versions of Doom, the infighting algorithm had an oversight where if a monster was hurt by an exploding barrel detonated by a monster of the same species, the two could start infighting, something which normally won't happen with most monster types as they're immune to projectiles from their own species (an Imp will never be hurt by another Imp's fireball, etc).
The exception being hitscan attacks, such as guns and melee attacks, only melee attacks can't strictly 'miss', just whiff from being out of range, thus a monster's melee attack will never accidentally hit another target, only fail to connect to its intended target.

In rare circumstances, a monster could detonate an explosive barrel, get hurt by the explosion, and what happens then is that the infighting code has now told him that he should target *himself*. Depending on which monster does this, various things may now happen.
If it's a Zombie, he will just completely wig out, waving around and shooting randomly in whatever direction, trying, but failing to target himself, probably hurting and killing others around him.
If it's a monster with a melee attack, such as the Baron Of Hell, he will find that he is in melee range with himself, and then start melee attacking himself continuously, since he IS in range of himself, and since melee attacks are hitscan attacks, he will thus stand in place and tear himself to pieces.

Example: https://www.youtube.com/watch?v=S9o9mE1UyBc

This oversight was patched out in all versions after 1.1, thus monsters could never be made to infight themselves.

is this how doom looked like on a PC monitor?
t. only played on LCD.